External audio electronic device, electronic device and method of managing a communication link

Abstract

An audio electronic device includes a communication circuit; and a processor operably connected to the communication circuit, wherein the processor is configured to establish a first communication link with an external audio electronic device through the communication circuit, receive data from a first external electronic device by monitoring a second communication link established between the external audio electronic device and the first external electronic device, and manage and maintain a third communication link established between the external audio electronic device and a second external electronic device when a right of the third communication link is given from the external audio electronic device, and transmit data to and receive data from the second external electronic device.

Description

TECHNICAL FIELD

[0001] The disclosure relates generally to external audio electronic devices and electronic devices, and more particularly, to a method of managing a communication link of an electronic device by sharing connection information between electronic devices. BACKGROUND

[0002] An electronic device having a Bluetooth communication function can establish Bluetooth communication having various topologies between a plurality of electronic devices.

[0003] Bluetooth wireless network technology can include a Bluetooth classic network and a Bluetooth low energy (BLE) network, and connection can be achieved through various connection type topologies such as a piconet and a scatter net. Two devices performing a Bluetooth communication connection operation can have roles as a master device and a slave device in a connection establishment phase, and all communication can be performed based on the roles in the connection establishment phase. SUMMARY

[0004] TECHNICAL PROBLEM

[0005] A plurality of external electronic devices can be connected to one electronic device through a Bluetooth wireless network, but an unlimited number of external electronic devices cannot be connected to one electronic device due to limited communication link resources of the electronic device. In a state in which a plurality of external electronic devices are connected to one electronic device through a Bluetooth wireless network, it can not be possible to maintain a communication link with the plurality of external electronic devices due to limited communication link resources.

[0006] In a state in which a plurality of electronic devices are connected to one electronic device through a Bluetooth wireless network, the electronic device can not perform a basic operation of a Bluetooth communication connection (for example, a BLE scan, a page scan, or a query scan) that should be performed through a user request, and the electronic device can be required to stop an operation of a Bluetooth wireless communication function to secure an operation of a Wi-Fi network operating in the same frequency band. In addition, when one electronic device is connected to another electronic device through a Bluetooth wireless network, a predetermined amount of current is consumed, and thus current consumption can be doubled every time a plurality of external electronic devices are connected to the electronic device.

[0007] SOLUTION TO THE PROBLEM

[0008] The present disclosure has been made to solve the above problems and disadvantages and to provide at least the advantages described below.

[0009] According to an aspect of the disclosure, an audio electronic device is provided. The audio electronic device includes a communication circuit; and a processor operatively connected to the communication circuit, wherein the processor is configured to establish a first communication link with an external audio electronic device through the communication circuit, receive data from a first external electronic device by monitoring a second communication link established between the external audio electronic device and the first external electronic device, and manage or maintain a third communication link established between the external audio electronic device and a second external electronic device when a right of the third communication link is given from the external audio electronic device, transmit first data to the second external electronic device, and receive second data from the second external electronic device.

[0010] According to another aspect of the disclosure, an audio electronic device is provided. The audio electronic device includes a communication circuit; and a processor operatively connected to the communication circuit, wherein the processor is configured to establish a first communication link with an external audio electronic device through the communication circuit; establish a second communication link with a first external electronic device and transmit information related to a second communication link connection associated with the second communication link to the external audio electronic device through the first communication link; establish a third communication link with a second external electronic device and transmit information related to a third communication link connection associated with the third communication link to the external audio electronic device through the first communication link; receive information about the external audio electronic device through the first communication link and identify whether to give a right of the second communication link based on the received information; and give the right of the second communication link to the external audio electronic device based on the identification and monitor the second communication link.

[0011] According to another aspect of the disclosure, an electronic device is provided. The electronic device includes a communication circuit; a display; and at least one processor operatively connected to the communication circuit and the display, wherein the at least one processor is configured to establish a first communication link with an external electronic device through the communication circuit; receive information about an audio electronic device from the external electronic device through the first communication link; and establish a second communication link with the audio electronic device based on the received information about the audio electronic device.

[0012] According to another aspect of the disclosure, an audio electronic device is provided. The audio electronic device includes a communication circuit, a speaker, and a processor operatively connected to the communication circuit and the speaker, wherein the processor is configured to establish a first communication link with an external audio electronic device through the communication circuit, monitor a second communication link established between the external audio electronic device and a first external electronic device, and receive data from the first external electronic device, receive information about a second external electronic device establishing a third communication link with the first external electronic device through the first communication link, and establish a fourth communication link with the second external electronic device based on the received information about the second external electronic device.

[0013] Advantages of the Invention

[0014] According to various embodiments, by sharing connection information between electronic devices connected through a Bluetooth communication connection, the communication link of the electronic device can be effectively managed.

[0015] According to various embodiments, the efficiency of a communication link having limited communication resources can be increased, a state in which the operation of the Bluetooth communication function should be stopped for the operation of another wireless network operating in the same frequency band can be prevented, and the current consumption of the electronic device can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other aspects, features, and advantages of certain embodiments of the disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a block diagram of an electronic device in a network environment according to an embodiment;

[0018] Figure 2A is a block diagram of a first external audio electronic device according to an embodiment;

[0019] Figure 2B is a block diagram of a second external audio electronic device according to an embodiment;

[0020] Figure 3 is a block diagram of an electronic device according to an embodiment;

[0021] Figure 4A shows a search result of a pair of external audio electronic devices according to an embodiment;

[0022] Figure 4B shows a search result of a pair of external audio electronic devices according to an embodiment;

[0023] Figure 5A shows an operation for establishing a communication link between electronic devices according to an embodiment;

[0024] Figure 5B Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0025] Figure 6 is a flowchart showing a communication link management operation according to an embodiment;

[0026] Figure 7 is a flowchart showing a communication link management operation of a first external audio electronic device according to an embodiment;

[0027] Figure 8 is a flowchart showing a communication link management operation of a second external audio electronic device according to an embodiment;

[0028] Figure 9 is a flowchart showing an operation of an electronic device outputting data according to an embodiment;

[0029] Figure 10A Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0030] Figure 10B Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0031] Figure 10C Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0032] Figure 11 is a flowchart showing a communication link management operation according to an embodiment;

[0033] Figure 12 is a flowchart showing a communication link management operation according to an embodiment;

[0034] Figure 13 is a flowchart showing a communication link management operation according to an embodiment;

[0035] Figure 14A Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0036] Figure 14B Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0037] Figure 14C Operation for establishing a communication link between electronic devices according to an embodiment is shown;

[0038] Figure 15 is a flowchart showing a communication link management operation according to an embodiment;

[0039] Figure 16 is a flowchart showing a communication link management operation of a first electronic device according to an embodiment;

[0040] Figure 17is a flowchart illustrating a communication link management operation of a second electronic device according to an embodiment;

[0041] Figure 18 is a flowchart illustrating a communication link management operation of a first external audio electronic device according to an embodiment;

[0042] Figure 19 is a flowchart illustrating a communication link management operation of a second external audio electronic device according to an embodiment;

[0043] Figure 20 is a flowchart illustrating a communication link management operation according to an embodiment;

[0044] Figure 21 is a flowchart illustrating a communication link management operation of a first electronic device according to an embodiment;

[0045] Figure 22 is a flowchart illustrating a communication link management operation of a second electronic device according to an embodiment;

[0046] Figure 23 is a flowchart illustrating a communication link management operation of a first external audio electronic device according to an embodiment;

[0047] Figure 24 is a flowchart illustrating a communication link management operation of a second external audio electronic device according to an embodiment;

[0048] Figure 25A a communication link management operation according to an embodiment is illustrated;

[0049] Figure 25B a communication link management operation according to an embodiment is illustrated;

[0050] Figure 25C a communication link management operation according to an embodiment is illustrated;

[0051] Figure 26 a communication link management operation according to an embodiment is illustrated;

[0052] Figure 27A a communication link management operation according to an embodiment is illustrated; and

[0053] Figure 27B a communication link management operation according to an embodiment is illustrated. DETAILED DESCRIPTION

[0054] Various embodiments of the present disclosure are described with reference to the accompanying drawings. However, the various embodiments of the present disclosure are not limited to specific embodiments and it should be understood that various modifications, equivalents and / or alternatives to the embodiments described herein can be made. In the description of the drawings, similar components can be marked with similar reference numerals.

[0055] According to various embodiments, the disclosure relates to an external audio electronic device, an electronic device, and a method of managing a communication link for efficiently managing a communication link of an electronic device by sharing connection information between electronic devices connected through Bluetooth communication.

[0056] Figure 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments. Referring to Figure 1 , the electronic device 101 in the network environment 100 can communicate with an electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or an electronic device 104 or a server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 can communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 can include a processor 120, a memory 130, an input device 150, a sound output device 155, a display device 160, an audio module 170, a sensor module 176, an interface 177, a connection terminal 178, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a subscriber identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one (e.g., the display device 160 or the camera module 180) of the components can be omitted from the electronic device 101, or one or more other components can be added in the electronic device 101. In some embodiments, the components can be implemented as single integrated circuitry. For example, the sensor module 176 (e.g., a fingerprint sensor, an iris sensor, or an illuminance sensor) can be implemented as embedded in the display device 160 (e.g., a display).

[0057] The processor 120 can execute, for example, software (e.g., a program 140) to control at least one other component (e.g., a hardware or software component) of the electronic device 101 coupled with the processor 120 and can perform various data processing or computation. According to one embodiment, as at least part of the data processing or computation, the processor 120 can load a command or data received from another component (e.g., the sensor module 176 or the communication module 190) to a volatile memory 132, process the command or the data stored in the volatile memory 132, and store resulting data in a non-volatile memory 134. According to an embodiment, the processor 120 can include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)), and an auxiliary processor 123 (e.g., a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operable independently from, or in conjunction with, the main processor 121. Additionally, or alternatively, the auxiliary processor 123 can be adapted to consume less power than the main processor 121, or to be specific to a specified function. The auxiliary processor 123 can be implemented as separate from, or as part of the main processor 121.

[0058] The auxiliary processor 123 can control at least some of the functions or states of at least one component of the electronic device 101 (e.g., the display device 160, the sensor module 176, or the communication module 190) while the main processor 121 is in an inactive (e.g., sleep) state, or together with the main processor 121 while the main processor 121 is in an active state (e.g., executing an application). According to an embodiment, the auxiliary processor 123 (e.g., an ISP or a CP) can be implemented as part of another component functionally related to the auxiliary processor 123 (e.g., the camera module 180 or the communication module 190).

[0059] The memory 130 can store various data used by at least one component (e.g., the processor 120 or the sensor module 176) of the electronic device 101. The various data can include, for example, software (e.g., a program 140) and input data or output data for a command related thereto. The memory 130 can include the volatile memory 132 or the non-volatile memory 134.

[0060] The program 140 can be stored in the memory 130 as software, and can include, for example, an operating system (OS) 142, middleware 144, or an application 146.

[0061] The input device 150 can receive a command or data to be used by other component (e.g., the processor 120) of the electronic device 101, from the outside (e.g., a user) of the electronic device 101. The input device 150 can include, for example, a microphone, a mouse, a keyboard, or a digital pen (e.g., a stylus pen).

[0062] The sound output device 155 can output sound signals to the outside of the electronic device 101. The sound output device 155 can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as playing multimedia or playing record, and the receiver can be used for incoming calls. According to an embodiment, the receiver can be implemented as separate from, or as part of, the speaker.

[0063] The display device 160 can visually provide information to the outside (e.g., a user) of the electronic device 101. The display device 160 can include, for example, a display, a hologram device, or a projector and a control circuit for controlling a corresponding one of the display, the hologram device, and the projector. According to an embodiment, the display device 160 can include a touch circuit adapted to detect a touch, or a sensor circuit (e.g., a pressure sensor) adapted to measure the intensity of force incurred by the touch.

[0064] The audio module 170 can convert a sound into an electrical signal and vice versa. According to an embodiment, the audio module 170 can obtain the sound via the input device 150, or output the sound via the sound output device 155 or a headphone of an external electronic device (e.g., an electronic device 102) directly (e.g., wiredly) or wirelessly coupled with the electronic device 101.

[0065] The sensor module 176 can detect an operational state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a state of a user) external to the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module 176 can include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0066] The interface 177 can support one or more specified protocols to be used for the electronic device 101 to be coupled with the external electronic device (e.g., the electronic device 102) directly (e.g., wiredly) or wirelessly. According to an embodiment, the interface 177 can include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0067] The connection terminal 178 can include a connector via which the electronic device 101 can be physically connected with the external electronic device (e.g., the electronic device 102). According to an embodiment, the connection terminal 178 can include, for example, a HDMI connector, a USB connector, a SD card connector, or an audio connector (e.g., a headphone connector).

[0068] The haptic module 179 can convert electrical signal into a mechanical stimulus (e.g., a vibration or a movement) or electrical stimulus that can be recognized by users through their tactile sensation or kinesthetic sensation. According to an embodiment, the haptic module 179 can include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0069] The camera module 180 can capture still images or moving images. According to an embodiment, the camera module 180 can include one or more lenses, image sensors, ISPs, or flashes.

[0070] The power management module 188 can manage power supplied to the electronic device 101. According to an embodiment, the power management module 188 can be implemented as at least part of, for example, a power management integrated circuit (PMIC).

[0071] The battery 189 can supply power to at least one component of the electronic device 101. According to an embodiment, the battery 189 can include, for example, a primary cell which is not rechargeable, a secondary cell which is rechargeable, or a fuel cell.

[0072] The communication module 190 can support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., the electronic device 102, the electronic device 104, or the server 108) and performing communication between the established communication channel. The communication module 190 can include one or more CPs that are operable independently from the processor 120 (e.g., an AP) and supports a direct (e.g., wired) communication or a wireless communication. According to an embodiment, the communication module 190 can include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can perform communication by using at least one of the first network 198 (e.g., a short-range communication network, such as Bluetooth, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network 199 (e.g., a long-range communication network, such as a cellular network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)). These various types of communication modules can be implemented as a single component (e.g., a single chip) or can be implemented as separate components (e.g., separate chips) from each other. The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network, such as the first network 198 or the second network 199, using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module 196.

[0073] The antenna module 197 can transmit or receive a signal or power to or from an external electronic device (e.g., the external electronic device) of the electronic device 101. According to an embodiment, the antenna module 197 can include an antenna including a radiating element composed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a PCB). According to an embodiment, the antenna module 197 can include a plurality of antennas. In this case, at least one antenna appropriate for a communication scheme used in a communication network, such as the first network 198 or the second network 199, can be selected from the plurality of antennas by, for example, the communication module 190 (e.g., the wireless communication module 192). Then, the signal or the power can be transmitted or received between the communication module 190 and an external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element can be additionally formed as part of the antenna module 197.

[0074] At least some of the above-described components can be coupled to each other via an inter-peripheral communication scheme (e.g., a bus, general purpose input output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and communicate information (e.g., commands or data) between them.

[0075] According to an embodiment, commands or data can be transmitted or received between the electronic device 101 and the external electronic device 104 via the server 108 coupled with the second network 199. Each of the electronic devices 102 and 104 can be a device of a same type as or different from the electronic device 101. According to an embodiment, all or some of the operations to be executed at the electronic device 101 can be executed at one or more of the external electronic devices 102, 104, or server 108. For example, if the electronic device 101 should automatically perform a function or a service or should perform a function or a service in response to a request from a user or another device, the electronic device 101, instead of, or in addition to, executing the function or the service, can request the one or more external electronic devices to execute at least part of the function or the service. The one or more external electronic devices receiving the request can execute the at least part of the function or the service requested, or execute another function or another service related to the request, and transfer an execution result to the electronic device 101. The electronic device 101 can process the result, without further processing, or in various ways. To that end, for example, a cloud computing, distributed computing, or client-server computing technology can be used.

[0076] Figure 2A is a block diagram 200a schematically illustrating a first external audio electronic device according to an embodiment, and Figure 2B is a block diagram 200b schematically illustrating a second external audio electronic device according to an embodiment.

[0077] Referring to Figure 2A and 2BThe first and second external audio electronic devices 201a and 201b can include communication circuitry 210a and 210b (first and second communication circuitry 210), antennas 211a and 211b (first and second antennas 211a and 211b), input devices 220a and 220b (first and second input devices 220a and 220b), sensors 230a and 230b (first and second sensors 230a and 230b), audio processing circuitry 240a and 240b (first and second audio processing circuitry 240a and 240b), memories 250a and 250b (first and second memories 250a and 250b), power management circuitry 260a and 260b, batteries 270a and 270b (first and second power management circuitry 260a and 260b), and processors 280a and 280b (first and second processors 280a and 280b).

[0078] The first and second external audio electronic devices 201a and 201b can not only include an audio output device such as earphones, headphones, or a speaker, but also include an electronic device for receiving and outputting audio data from other electronic devices.

[0079] The communication circuitry 210a and 210b can support wireless communication with the electronic device 101 (e.g., a smartphone). The communication circuitry 210a and 210b can support various types of communication through the antennas 211a and 211b.

[0080] The communication circuitry 210a and 210b can include various RF components between the antennas 211a and 211b and the processors 280a and 280b. For example, upon receiving a radio signal, the communication circuitry 210a and 210b can receive the radio signal from the antennas 211a and 211b, convert the received radio signal into a baseband signal, and transmit the converted baseband signal to the processors 280a and 280b. The processors 280a and 280b can process the received baseband signal and control the human / machine interface of the first and second external audio electronic devices 201a and 201b according to the received baseband signal. Upon transmitting a radio signal, the processors 280a and 280b can generate a baseband signal and output the baseband signal to the communication circuitry 210a and 210b. The communication circuitry 210a and 210b can receive the baseband signal from the processors 280a and 280b, convert the received baseband signal into a radio signal, and transmit the radio signal to the outside through the antennas 211a and 211b.

[0081] The communication circuit 210a and 210b can support wired communication with an external device (e.g., a case or a cradle). The communication circuit 210a and 210b can be electrically connected to at least one contact disposed on an outer surface of a case of the first and second external audio electronic devices 201a and 201b. When the first and second external audio electronic devices 201a and 201b are mounted to a mounting portion of an external device (e.g., a case or a cradle), the at least one contact of the first and second external audio electronic devices 201a and 201b can be electrically connected to at least one contact mounted in the mounting portion of the external device.

[0082] The communication circuit 210a and 210b can support reception of audio data (or audio content) from an electronic device (e.g., a server, a smart phone, a personal computer, a personal digital assistant (PDA), or an access point).

[0083] The communication circuit 210a and 210b can support transmission of audio data from the first external audio electronic device 201a to the second external audio electronic device 201b or from the second external audio electronic device 201b to the first external audio electronic device 201a.

[0084] The communication circuit 210a and 210b can support cellular communication. The cellular communication can include at least one of, for example, long-term evolution (LTE), LTE-advanced (LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), wireless broadband (WiBro), and global system for mobile communications (GSM).

[0085] The communication circuit 210a and 210b can support various types of communication. According to an embodiment, the communication circuit 210a and 210b can support short-range communication. The short-range communication can include at least one of, for example, wireless fidelity (Wi-Fi), Bluetooth, near field communication (NFC), or global navigation satellite system (GNSS).

[0086] The antennas 211a and 211b can include transmitters (e.g., wireless charging coils) for supporting wireless charging. The antennas 211a and 211b can be used to transmit wireless power to an external device (e.g., a charging device) or to wirelessly receive power from the external device. The antennas 211a and 211b can be various types of metal members installed in the first and second external audio electronic devices 201a and 201b. According to an embodiment, the antennas 211a and 211b can be disposed inside the housings or can form a portion of one surface of the housings. When the housings are formed of metal, the antennas 211a and 211b can include a partial metal area or an entire metal area of the housings.

[0087] The antennas 211a and 211b can be installed on a printed circuit board (PCB) on which the communication circuits 210a and 210b are installed, but the PCB is not shown.

[0088] The input devices 220a and 220b can be configured to generate various input signals required to operate the first and second external audio electronic devices 201a and 201b. The input devices 220a and 220b can include a touch pad, a touch panel, or a button. The touch pad can recognize a touch input based on at least one of, for example, a capacitive scheme, a resistive scheme, an infrared scheme, and an ultrasonic scheme. When a capacitive touch pad is provided, physical contact or proximity recognition is possible. The touch pad can further include a tactile layer. The touch pad including the tactile layer can provide a tactile response to a user. The button can include, for example, a physical button and / or an optical key.

[0089] The input devices 220a and 220b can generate a user input for turning on or off the first and second external audio electronic devices 201a and 201b. The input devices 220a and 220b can generate a user input for a communication (e.g., short distance communication) connection with the first and second external audio electronic devices 201a and 201b and an electronic device (e.g., the electronic device 101 of FIG. 1). Figure 1

[0090] The input devices 220a and 220b can generate a user input related to audio data (or audio content). For example, the user input can be associated with a function of starting to reproduce audio data, pausing reproduction of audio data, stopping reproduction of audio data, controlling a reproduction speed, controlling a reproduction volume, and / or controlling muting.

[0091] ​The sensors 230a and 230b can detect information or a signal indicating whether the first and second external audio electronic devices 201a and 201b are worn on ears. The sensors 230a and 230b can detect information or a signal indicating whether the first and second external audio electronic devices 201a and 201b are worn on an external device (e.g., a charging device).

[0092] The sensors 230a and 230b can measure a physical quantity or detect an operating state of the first and second external audio electronic devices 201a and 201b. The sensors 230a and 230b can convert the measured or detected information into an electrical signal. The sensors 230a and 230b can include, for example, an acceleration sensor, a gyro sensor, a geomagnetic sensor, a magnetic sensor, a proximity sensor, a gesture sensor, a grip sensor, and / or a biometric sensor.

[0093] The first and second external audio electronic devices 201a and 201b can include a to-be-detected member corresponding to a sensor of an external device. For example, the external device can include a Hall integrated circuit (Hall IC) installed in a mounting portion, and the first and second external audio electronic devices 201a and 201b can include a magnet. When the first and second external audio electronic devices 201a and 201b are coupled to the mounting portion of the external device, the Hall IC of the external device can recognize the magnet included in the first and second external audio electronic devices 201a and 201b and output a signal related to coupling between the external device and the first and second external audio electronic devices 201a and 201b. In another example, the external device can include a contact installed in a mounting portion, and the first and second external audio electronic devices 201a and 201b can include a contact installed in a housing. When the first and second external audio electronic devices 201a and 201b are coupled to the mounting portion of the external device, the contact of the external device and the contact of the first and second external audio electronic devices 201a and 201b can be electrically connected, and the external device can recognize coupling with the first and second external audio electronic devices 201a and 201b.

[0094] The audio processing circuit 240a and 240b can support an audio data collection function. The audio processing circuit 240a and 240b can reproduce collected audio data. According to an embodiment, the audio processing circuit 240a and 240b can include an audio decoder (not shown) and a D / A converter (not shown). The audio decoder can convert audio data stored in the memory 250a and 250b into a digital audio signal. The D / A converter can convert the digital audio signal converted by the audio decoder into an analog audio signal. According to various embodiments, the audio decoder can convert audio data received through the communication circuit 210a and 210b from an electronic device (e.g., a server, a smart phone, a PC, a PDA, and / or an access point) and stored in the memory 250a and 250b into a digital audio signal. The speaker 241a and 241b can output the analog audio signal converted by the D / A converter.

[0095] The audio processing circuit 240a and 240b can include an A / D converter (not shown). The A / D converter can convert an analog voice signal transmitted through the microphone 242a and 242b into a digital voice signal.

[0096] The audio processing circuit 240a and 240b can reproduce various preset audio data in the execution operation of the first and second external audio electronic devices 201a and 201b. For example, when it is detected that the first and second external audio electronic devices 201a and 201b are worn on the ears or that they are separated from the ears, the audio processing circuit 240a and 240b can be designed to reproduce audio data related to a corresponding effect or notification sound. When it is detected that the first and second external audio electronic devices 201a and 201b are coupled with an external device (e.g., a charging device) or that they are separated from the external device, the audio processing circuit 240a and 240b can be designed to reproduce audio data related to a corresponding effect or notification sound. According to a user setting or a designer's intention, the output of the effect sound or the notification sound can be omitted. According to various embodiments, the audio processing circuit 240a and 240b can be designed to be included in the processor 280a and 280b.

[0097] The memory 250a and 250b can store various operating systems required to operate the first and second external audio electronic devices 201a and 201b, data corresponding to various user functions, and / or applications and algorithms. The memory 250a and 250b can include, for example, a high-speed random access memory such as one or more disk storage devices and / or nonvolatile memories, one or more optical storage devices, and / or a flash memory (e.g., NAND or NOR).

[0098] The memories 250a and 250b can include a non-volatile memory for storing first audio data (non-volatile audio data) received from an electronic device (e.g., a server, a smartphone, a PC, a PDA, and / or an access point). The memories 250a and 250b can include a volatile memory for storing second audio data (volatile audio data) received from an electronic device.

[0099] The power management circuits 260a and 260b (Power Management Integrated Circuit (PMIC)) can efficiently manage and optimize the use of power of the batteries 270a and 270b in the first and second external audio electronic devices 201a and 201b. According to an embodiment, the processors 280a and 280b can transmit a signal corresponding to a load to be processed to the power management circuits 260a and 260b. The power management circuits 260a and 260b can control power supplied to the processors 280a and 280b.

[0100] The power management circuits 260a and 260b can include a battery charging circuit. When the first and second external audio electronic devices 201a and 201b are coupled to an external device (e.g., a charging device), the power management circuits 260a and 260b can receive power from the external device and charge the batteries 270a and 270b.

[0101] The power management circuits 260a and 260b can include a wireless charging circuit. The wireless charging circuit can wirelessly receive power from an external device (e.g., a charging device) through the antennas 211a and 211b, and can charge the batteries 270a and 270b using the received power.

[0102] The first and second external audio electronic devices 201a and 201b can include a display device (not shown). The display device can be configured to provide various screen interfaces required for operating the first and second external audio electronic devices 201a and 201b. The display device can provide a user interface related to the reproduction of audio data. According to various embodiments, the display device can provide a user interface related to a function of receiving audio data from an electronic device (e.g., the electronic device 101) or a function of transmitting audio data to an electronic device. Figure 1

[0103] ​The display apparatus can include a light emitting component such as a light emitting diode. For example, the light emitting component can be controlled to emit a color corresponding to charging or charging completion. For example, the light emitting component can be controlled to emit a specific color when the first and second external audio electronic apparatuses 201a and 201b are connected to an electronic apparatus (e.g., a smart phone and / or a network server) through communication. For example, the light emitting component can be controlled to emit a specific color according to a reproduction state (e.g., reproduction and / or reproduction pause) of audio data. For example, the light emitting component can be controlled to emit a specific color according to a user input generated through an input apparatus.

[0104] The batteries 270a and 270b can supply power to elements within the first and second external audio electronic apparatuses 201a and 201b.

[0105] The processors 280a and 280b can be configured to control various signal flows related to audio data, information collection, and / or output.

[0106] The processors 280a and 280b can support various operations based on at least a part of a user input received from the input apparatuses 220a and 220b. The processors 280a and 280b can turn on or off the first and second external audio electronic apparatuses 201a and 201b according to a user input. The processors 280a and 280b can establish a communication connection between the first and second external audio electronic apparatuses 201a and 201b and an electronic apparatus (e.g., the electronic apparatus 101) according to a user input. According to an embodiment, the processors 280a and 280b can receive audio data from an electronic apparatus (e.g., the electronic apparatus 101) or transmit audio data to the electronic apparatus according to a user input. The processors 280a and 280b can reproduce audio data or control reproduction (e.g., start reproducing audio data, pause reproducing audio data, stop reproduction, control reproduction speed, control reproduction volume, or mute) according to a user input. Figure 1

[0107] The processors 280a and 280b can be designed to receive audio data from an electronic apparatus (e.g., a server, a smart phone, a PC, a PDA, and / or an access point) through the communication circuitry 210a and 210b and store the received audio data in the memories 250a and 250b. According to an embodiment, the processors 280a and 280b can receive non-volatile audio data (or downloaded audio data) from an electronic apparatus and store the received non-volatile audio data in a non-volatile memory. The processors 280a and 280b can receive volatile audio data (or streaming audio data) from an electronic apparatus (e.g., the electronic apparatus 101) and store the received volatile audio data in a volatile memory. Figure 1 The processors 280a and 280b can be designed to receive audio data from an electronic apparatus (e.g., a server, a smart phone, a PC, a PDA, and / or an access point) through the communication circuitry 210a and 210b and store the received audio data in the memories 250a and 250b. According to an embodiment, the processors 280a and 280b can receive non-volatile audio data (or downloaded audio data) from an electronic apparatus and store the received non-volatile audio data in a non-volatile memory. The processors 280a and 280b can receive volatile audio data (or streaming audio data) from an electronic apparatus (e.g., the electronic apparatus 101) and store the received volatile audio data in a volatile memory.​

[0108] The processors 280a and 280b can reproduce audio data (e.g., non-volatile audio data or volatile audio data) stored in the memories 250a and 250b and output the audio data through the speakers 241a and 241b. The processors 280a and 280b can decode the audio data and acquire an audio signal (reproduce the audio data). The processors 280a and 280b can output the acquired audio signal through the speakers 241a and 241b.

[0109] The processors 280a and 280b can receive an audio signal from an electronic device (e.g., the electronic device 101) and output the received audio signal through the speakers 241a and 241b. The electronic device (e.g., an audio reproduction device) can decode audio data and acquire an audio signal (e.g., reproduce the audio data). The electronic device (e.g., the electronic device 101) can transmit the acquired audio signal to the first and second external audio electronic devices 201a and 201b. The processors 280a and 280b can perform various operations based on at least some of the information acquired from the sensors 230a and 230b. The processors 280a and 280b can identify whether the first and second external audio electronic devices 201a and 201b are worn on ears based on the information acquired from the sensors 230a and 230b. When it is identified that the first and second external audio electronic devices 201a and 201b are worn on ears, the processors 280a and 280b can reproduce audio data stored in the memories 250a and 250b according to a user input for reproducing the audio data and output the audio data through the speakers 241a and 241b.

[0110] The processors 280a and 280b can transmit an electrical signal from the light receiver to an electronic device (e.g., a smart phone) (e.g., the electronic device 101) through the communication circuit 210a and 210b. The electronic device (e.g., the electronic device 101) can analyze the electrical signal acquired from the first and second external audio electronic devices 201a and 201b and acquire information related to a corresponding detection mode (e.g., a proximity detection mode and / or a biometric feature detection mode). According to an embodiment, in a heart rate detection mode of the first and second external audio electronic devices 201a and 201b and / or the electronic device (e.g., the electronic device 101), the processors 280a and 280b can identify a heart rate based on the electrical signal from the light receiver of the first and second external audio electronic devices 201a and 201b. Figure 1 Figure 1

[0111] ​​The processors 280a and 280b can analyze the electrical signal from the light receiver and acquire information related to a corresponding detection mode (e.g., a proximity detection mode and / or a biometric feature detection mode). The processors 280a and 280b can transmit the acquired information to an electronic device (e.g., the electronic device 101) through the communication circuit 210a and 210b. The processors 280a and 280b can output the acquired information through the speaker 241a and 241b. Figure 1

[0112] When it is identified that the first and second external audio electronic devices 201a and 201b are not worn on ears in a mode in which the first and second external audio electronic devices 201a and 201b receive audio data from an electronic device (e.g., the electronic device 101), reproduce the audio data, and output the audio data through the speaker 241a and 241b, the processors 280a and 280b can stop the mode or transmit a signal related thereto to an external device. The external device can receive a signal related to a state in which the first and second external audio electronic devices 201a and 201b are not worn on ears and stop transmitting audio data to the first and second external audio electronic devices 201a and 201b.

[0113] When it is identified that the first and second external audio electronic devices 201a and 201b are not worn on ears in a mode in which the first and second external audio electronic devices 201a and 201b receive an audio signal from an external device and output the audio signal through the speaker 241a and 241b, the processors 280a and 280b can stop the mode or transmit a signal related thereto to an electronic device. The electronic device (e.g., the electronic device 101) can receive a signal related to a state in which the first and second external audio electronic devices 201a and 201b are not worn on ears and stop reproducing audio data and transmitting an audio signal.

[0114] When it is identified that the first and second external audio electronic devices 201a and 201b are worn on ears, the processors 280a and 280b can activate a biometric feature sensor (e.g., a heart rate sensor). When it is identified that the first and second external audio electronic devices 201a and 201b are not worn on ears, the processors 280a and 280b can deactivate the biometric feature sensor.

[0115] ​When the first external audio electronic device 201a is connected to the second external audio electronic device 201b through communication, the first external audio electronic device 201a can be a master device, and the second external audio electronic device 201b can be a slave device, or the second external audio electronic device 201b can be a master device, and the first external audio electronic device 201a can be a slave device. The external audio electronic device that is the master device can output an audio signal received from the electronic device 101 through the speaker 241a, and also transmit the audio signal to the external audio electronic device that is the slave device.

[0116] The first external audio electronic device 201a and the second external audio electronic device 201b can provide a voice recognition function for generating a voice command from an analog voice signal received using the microphones 242a and 242b. The voice command can be associated with input for supporting reception, transmission, and / or reproduction of audio data.

[0117] The first external audio electronic device 201a and the second external audio electronic device 201b can further include various modules according to the form they provide. Since such elements can be variously modified according to the convergence trend of digital devices, all of these elements cannot be enumerated. However, the first external audio electronic device 201a and the second external audio electronic device 201b can further include elements equivalent to the aforementioned elements. In addition, the first external audio electronic device 201a and the second external audio electronic device 201b can omit a specific element from among the elements according to the form they provide, or the element can be replaced with other elements. This can be easily understood by one of ordinary skill in the art.

[0118] Figure 2A A case in which the first external audio electronic device 201a operates as a master external audio electronic device (or external audio electronic device) as a master device is shown.

[0119] When the first external audio electronic device 201a establishes a first communication link with the second external audio electronic device 201b through the communication circuit 210a, the processor 280a can configure the first external audio electronic device 201a as a master external audio electronic device, and the second external audio electronic device 201b as a slave external audio electronic device.

[0120] The processor 280a can hand over the right of the communication link between at least one of the plurality of electronic devices and the first external audio electronic device 201a to the second external audio electronic device 201b, which is a sub external audio electronic device having the communication link established with the first external audio electronic device 201a, while establishing a communication link between the first external audio electronic device 201a and each of the plurality of electronic devices. The entity of the right of the communication link can be a device that manages and maintains the communication link when the entity transmits a connection identification message (e.g., a poll packet message) for maintaining the communication link and receives a connection identification response message (e.g., a null packet message). The entity of the right of the communication link can be a device that receives a data packet (e.g., audio data) from an external electronic device in order to manage the communication link and transmits a positive acknowledgement (ACK) message indicating that the data packet is normally received or a negative acknowledgement (NACK) message indicating that the data packet is not normally received to the external electronic device.

[0121] The processor 280a can establish a second communication link with the first electronic device 101 and a third communication link with the second electronic device 102 through the communication circuit 210a. The processor 280a of the first external audio electronic device 201a can establish a communication link with the plurality of electronic devices and the first and second electronic devices.

[0122] The processor 280a can establish a second communication link with the first electronic device and a third communication link with the second electronic device through Bluetooth communication (e.g., BLE communication or Bluetooth classic communication) via the communication circuit 210a.

[0123] When the first external audio electronic device 201a establishes a second communication link with the first electronic device 101 and a third communication link with the second electronic device 102 through the communication circuit 210a, the second external audio electronic device 201b can monitor the second communication link and the third communication link.

[0124] The processor 280a can transmit connection information related to the second communication link to the second external audio electronic device 201b, and transmit connection information related to the third communication link to the second external audio electronic device 201, so that the second external audio electronic device 201b can monitor the second communication link and the third communication link. The monitoring of the communication link can be performed in various ways and based on the connection information of the communication link.

[0125] The connection information related to the communication link for monitoring the communication link can be information for supporting communication link information generated between the first external audio electronic device 201a and the electronic device (e.g., the first electronic device and / or the second electronic device) with the second external electronic device.

[0126] The connection information related to the communication link for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT (logical transport) address), clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (clock local) of a master device), channel information (e.g., a used channel map), service discovery protocol (SDP) result information, supported features, manufacturing data, or key information (e.g., a link key) of each of the first and second electronic devices.

[0127] The processor 280a can transmit the connection information related to the communication link to the second external audio electronic device 201b as shown in Table 1 below.

[0128] [Table 1]

[0129]

[0130] The processor 280a can transmit a connection identification message (e.g., a poll packet message) to the first electronic device and receive a connection identification response message (e.g., an empty packet message) from the first electronic device in order to maintain the communication link with the first electronic device having the second communication link established with the first external audio electronic device 201a.

[0131] When receiving a data packet (e.g., audio data) from the first electronic device to manage the communication link with the first electronic device having the second communication link established with the first external audio electronic device 201a, the processor 280a can transmit, to the first electronic device, an ACK message indicating that the data packet is normally received or a NACK message indicating that the data packet is not normally received. The processor 280a can receive, from the second external audio electronic device 201b capable of receiving the data packet from the first electronic device by monitoring the second communication link, the ACK message indicating that the data packet is normally received or the NACK message indicating that the data packet is not normally received, and make a request for retransmission of the data packet to the first electronic device when the NACK message is received from the second external audio electronic device 201b. The processor 280a can receive the ACK message or the NACK message from the second external audio electronic device 21b within a predetermined time after receiving the data packet from the first electronic device. When no message is received from the second external audio electronic device 201b within the predetermined time, the processor 280a can make a request for retransmission of the data packet to the first electronic device. The processor 280a can query the second external audio electronic device 21b whether the data packet is received from the first electronic device, and receive the ACK message or the NACK message from the second external audio electronic device 201b in response to the query. When the second external audio electronic device 201b is configured to make a request for retransmission of the data packet to the first electronic device, the processor 280a can not receive the ACK message or the NACK message from the second external audio electronic device 201b.

[0132] The processor 280a can transmit a connection identification message to the second electronic device and receive a connection identification response message from the second electronic device in order to maintain the communication link with the second electronic device having the third communication link established with the first external audio electronic device 201a.

[0133] When receiving a data packet (e.g., audio data) from the second electronic device to manage a communication link with the second electronic device, the processor 280a can transmit, to the second electronic device having the third communication link established with the first external audio electronic device 201a, an ACK message indicating that the data packet is normally received or a NACK message indicating that the data packet is not normally received. The processor 280a can receive, from the second external audio electronic device 201b capable of receiving the data packet from the second electronic device by monitoring the third communication link, an ACK message indicating that the data packet is normally received or a NACK message indicating that the data packet is not normally received, and make a request for retransmission of the data packet to the second electronic device when the NACK message is received from the second external audio electronic device 201b. The processor 280a can receive the ACK message or the NACK message from the second external audio electronic device 21b within a predetermined time after receiving the data packet from the second electronic device. When no message is received from the second external audio electronic device 201b within the predetermined time, the processor 280a can make a request for retransmission of the data packet to the second electronic device. The processor 280a can query the second external audio electronic device 21b whether the data packet is received from the second electronic device, and receive the ACK message or the NACK message from the second external audio electronic device 201b in response to the query. When the second external audio electronic device 201b is configured to make a request for retransmission of the data packet to the second electronic device, the processor 280a can not receive the ACK message or the NACK message from the second external audio electronic device 201b.

[0134] When a condition for changing an entity of right of a communication link is satisfied in a state in which the first external audio electronic device 201a establishes the second communication link with the first electronic device and the third communication link with the second electronic device, the processor 280a can change the entity of right of the second communication link or the third communication link from the first external audio electronic device 201a to the second external audio electronic device 210b.

[0135] The condition for changing the entity of right of the communication link can include at least one of communication quality information, state information of the external audio electronic device, a state in which the external audio electronic device is connected to a plurality of electronic devices by communication, or a user selection.

[0136] The condition for changing the entity of right of the communication link is not limited to the above-described condition, and can include various conditions that can be configured for efficiency when the external audio electronic device is connected to at least one electronic device by communication.

[0137] The processor 280a can change the entity of the right to the communication link according to a communication quality information condition among conditions for changing the entity of the right to the communication link. For example, when the signal strength between the second external audio electronic device 201b and the electronic device (e.g., the first electronic device or the second electronic device) is higher than the signal strength between the first external audio electronic device 201a and the electronic device, the right to at least one of the plurality of communication links can be given to the second external audio electronic device 201b. For example, the first external audio electronic device 201a can receive information about the signal strength of the communication link from the second external audio electronic device 201b. When the signal strength between the second external audio electronic device 201b and the electronic device (e.g., the first electronic device or the second electronic device) is lower than the signal strength between the first external audio electronic device 201a and the electronic device, the processor 280a can withdraw the at least one right given to the second external audio electronic device 201b.

[0138] The processor 280a can change the entity of the right to the communication link according to a state information condition (e.g., battery level) of the external audio electronic device. For example, when the battery level of the first external audio electronic device 201a is less than or equal to a predetermined value, or when the battery level of the second external audio electronic device 201b is higher than the battery level of the first external audio electronic device 201a, the first external audio electronic device 201a can give the right to at least one of the plurality of communication links to the second external audio electronic device 201b. For example, the first external audio electronic device 201a can receive information about the battery level from the second external audio electronic device 201b. When the battery level of the first external audio electronic device 201a is greater than or equal to a predetermined value, or when the battery level of the second external audio electronic device 201b is lower than the battery level of the first external audio electronic device 201a, the processor 280a can withdraw the at least one right given to the second external audio electronic device 201b.

[0139] The processor 280a can change the entity having the right of the communication link according to the state information condition (e.g., whether the external audio electronic device is worn) of the external audio electronic device in the condition for changing the entity having the right of the communication link. For example, when the first audio electronic device 201a is separated from the user's ear and the second external audio electronic device 201b is worn on the user's ear, the first external audio electronic device 201a can transfer the right of at least one of the plurality of communication links to the second external audio electronic device 201b. For example, the first external audio electronic device 201a can receive the state information condition (e.g., whether the external audio electronic device is worn) from the second external audio electronic device 201b. When the first external audio electronic device 201a is worn on the user's ear and the second external audio electronic device 201b is separated from the user's ear, the processor 280a can withdraw the at least one right transferred to the second external audio electronic device 201b.

[0140] The processor 280a can change the entity having the right of the communication link according to the state information condition (e.g., the operation state) of the external audio electronic device in the condition for changing the entity having the right of the communication link. For example, when the first electronic device having the second communication link established with the first external audio electronic device 201a is outputting audio data to the first external audio electronic device 201a and the second external audio electronic device 201b in the first operation state (e.g., a music reproduction mode) and the second electronic device having the third communication link established with the first external audio electronic device 201a is in the second operation state (e.g., a standby mode), the first external audio electronic device 201a can transfer the right of the third communication link of the plurality of communication links to the second external audio electronic device 201b. For example, the first external audio electronic device 201a can receive the state information condition (e.g., the operation state) from the second external audio electronic device 201b. When the second electronic device having the third communication link established with the first external audio electronic device 201a switches to the first operation state (e.g., a music reproduction mode) and thus is outputting audio data to the first external audio electronic device 201a and the second external audio electronic device 201b, and when the first electronic device having the second communication link established with the first external audio electronic device 201a switches to the second operation state (e.g., a standby mode), the processor 280a can withdraw the right of the third communication link transferred to the second external audio electronic device 201b, or can withdraw the right of the third communication link and then transfer the right of the second communication link to the second external audio electronic device 201b.

[0141] The processor 280a can change the entity of the right of the communication link according to a connection state condition of communication between the external audio electronic device and the plurality of electronic devices in the condition for changing the entity of the right of the communication link. For example, when the first external audio electronic device 201a is connected to the plurality of electronic devices through communication, the first external audio electronic device 201a can transfer the right of the communication link with at least one electronic device selected based on an order of establishment of the communication link among the plurality of electronic devices to the second external audio electronic device 201b.

[0142] The processor 280a can transmit a message indicating that the right of the communication link with the at least one electronic device is given to the second external audio electronic device 201b.

[0143] The processor 280a can monitor a third communication link established between the first external audio electronic device 201a and a second electronic device among the plurality of electronic devices having the established communication link after transferring the right of the third communication link to the second external audio electronic device 201b, and can stop data transmission through the third communication link and receive only data.

[0144] After transferring the right of the third communication link established between the first external audio electronic device 201a and the second electronic device among the plurality of electronic devices having the established communication link to the second external audio electronic device 201b, the processor 280a can stop data transmission and reception through the third communication link. Thereafter, the first external audio electronic device 201a can perform at least one of an operation for transmitting data through the third communication link or an operation for receiving data from a point in time at which the right of the third communication link is received from the second external audio electronic device 201b.

[0145] When the second external audio electronic device 201b does not satisfy the condition for changing the entity of the right of the communication link, the processor 280a can withdraw the right of a specific communication link given to the second external audio electronic device 201b and maintain and manage the specific communication link.

[0146] When a specific event (e.g., reception of a call) corresponding to a condition for withdrawing the right of the communication link is received, the processor 280a can withdraw the right of the communication link given to the second external audio electronic device 201b. For example, when a specific event is generated from the second electronic device after the right of the third communication link with the second electronic device is given to the second external audio electronic device 201b, the processor 280a can withdraw the right of the third communication link. When the third communication link is monitored after the right of the third communication link is given to the second external audio electronic device 201b, the processor 280a can detect the specific event generated from the second electronic device by monitoring the third communication link. Alternatively, when the third communication link is not monitored after the right of the third communication link is given to the second external audio electronic device 201b, the processor 280a can detect the specific event generated from the second electronic device through notification of the second external audio electronic device 201b.

[0147] When the entity of the right of the third communication link is changed from the second external audio electronic device 201b to the first external audio electronic device 201a based on the specific event received from the second electronic device, the processor 280a can process the event received from the second electronic device.

[0148] After the right of the third communication link established between the first external audio electronic device 201a and the second electronic device 201b is given to the second external audio electronic device 201b, the processor 280a can withdraw the right of the third communication link from the second external audio electronic device 201b and give the right of the second communication link established between the first electronic device and the first external audio electronic device 201a according to a condition for changing the entity of the right of the communication link.

[0149] After the right of the third communication link established between the first external audio electronic device 201a and the second electronic device is given to the second external audio electronic device 201b, the processor 280a can additionally give the right of the second communication link established between the first electronic device and the first external audio electronic device 201a to the second external audio electronic device 201b according to a condition for changing the entity of the right of the communication link.

[0150] To establish a communication link between the second external audio electronic device 201b corresponding to a sub-external audio electronic device and the second electronic device, the processor 280a can transmit information about the second external audio electronic device 201b having the established first communication link to the first electronic device having a communication link established with the second electronic device, or transmit information about the second electronic device received through the first electronic device to the second external audio electronic device 201b.

[0151] When a request for information (e.g., address information) about a second external audio electronic device 201b that established a first communication link with the first external audio electronic device 201a is made by the first electronic device 101 that established a second communication link with the first external audio electronic device 201a through the communication circuit 210a, the processor 280a can transmit information about the second external audio electronic device 201b to the first electronic device 101.

[0152] When information (e.g., address information) about a second electronic device 102 that established a third communication link with the first electronic device 101 is received from the first electronic device 101 for establishing a second communication link with the first external audio electronic device 201a, the processor 280a can transmit information about the second electronic device to the second external audio electronic device 201b through the first communication link. The processor 280a can transmit a message making a request for establishing a communication link with the second electronic device to the second external audio electronic device 201b along with the information about the second electronic device.

[0153] The processor 280a can monitor connection information related to a fourth communication link established between the second electronic device and the second external audio electronic device 201b.

[0154] When connection information related to the fourth communication link established between the second electronic device and the second external audio electronic device 201b is received from the second external audio electronic device 201b through the first communication link, the processor 280a can monitor connection information related to the fourth communication link based on the connection information related to the fourth communication link.

[0155] To maintain the second communication link established between the first external audio electronic device 201a and the first electronic device, the processor 280a can transmit a connection identification message (a polling packet message) to the first electronic device and receive a connection identification response message (an empty packet message) from the first electronic device.

[0156] To manage the second communication link established between the first external audio electronic device 201a and the first electronic device, the processor 280a can transmit an ACK message indicating that a data packet (e.g., audio data) received from the first electronic device is normally received and a NACK message indicating that the data packet is not normally received to the first electronic device. The processor 280a can monitor the first communication link and receive an ACK message indicating that a data packet from the first electronic device is normally received and a NACK message indicating that the data packet is not normally received, which the second external audio electronic device 201b is capable of receiving the data packet from the first electronic device. When the NACK message is received from the second external audio electronic device 201b, the processor 280a can make a request for transmitting the data packet to the first electronic device.

[0157] Figure 2B It is shown that the second external audio electronic device 201b operates as a sub-external audio electronic device (or an audio electronic device) acting as a slave device.

[0158] When the second external audio electronic device 201b generates a first communication link with the first external audio electronic device 201a through the communication circuit 210b, the processor 280b can configure the second external audio electronic device 201b as a sub-external audio electronic device and the first external audio electronic device 201a as a master external audio electronic device.

[0159] The processor 280b can receive, from the first external audio electronic device 201a, a right of a communication link between the first external audio electronic device 201a and at least one of a plurality of electronic devices having a communication link established with the first external audio electronic device 201a.

[0160] The processor 280b can monitor a second communication link established between the first external audio electronic device 201a and the first electronic device and / or a third communication link established between the first external audio electronic device 201a and the second electronic device.

[0161] The processor 280b can receive, from the first external audio electronic device 201a, connection information related to the second communication link established between the first external audio electronic device 201a and the first electronic device and connection information related to the third communication link established between the first external audio electronic device 201a and the second electronic device through the first communication link established with the first external audio electronic device 201a through the communication circuit 210b. The processor 280b can monitor the second communication link based on the received connection information related to the second communication link and receive data from the first electronic device. The processor 280b can monitor the third communication link based on the received connection information related to the third communication link and receive data from the second electronic device.

[0162] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of Bluetooth address information or LT address information), clock information (e.g., at least one of Bluetooth piconet clock information or CLKN information (local clock) of a master device), channel information (e.g., channel mapping information used), SDP result information, supported feature information, artificial data or key information (e.g., link key information) of each of the first external audio electronic device 201a, the first electronic device, or the second electronic device.

[0163] The processor 280b can calculate a channel access code and a frequency hop based on the connection information related to the communication link, and monitor each of the second communication link and the third communication link based on the calculation result.

[0164] The second external audio electronic device 201b can monitor data transmitted and received between the first external audio electronic device 201a and the first electronic device through the second communication link or between the first external audio electronic device 201a and the second electronic device through the third communication link based on the connection information related to the second communication link and the connection information related to the third communication link received from the first external audio electronic device 201a. For example, the second external audio electronic device can monitor all packet messages such as a packet message for maintaining a communication link such as a poll packet message / empty packet message, an ACL-C (Asynchronous Connectionless Control) message for link control, and an ACL-U (Asynchronous Connectionless User) message for user data, or can monitor only the second communication link or the third communication link at a specific point in time according to circumstances based on the connection information related to the second communication link and the connection information related to the third communication link received from the first external audio electronic device 201a. For example, the second external audio electronic device 201b can generate the first communication link with the first external audio electronic device 201a, and monitor the second communication link or the third communication link from a point in time when a connection request is transmitted from the first electronic device or the second electronic device, while continuously scanning a page using address information (for example, Bluetooth address information) of the first external audio electronic device 201a received during a connection process for generating the first communication link.

[0165] When a data packet transmitted from the first electronic device is normally received while monitoring the second communication link, the processor 280b can transmit an ACK message indicating that the data packet is normally received to the first external audio electronic device 201a. When the data packet is not normally received from the first electronic device, the processor 280b can transmit a NACK message indicating that the data packet is not normally received to the first external audio electronic device 201a.

[0166] When the second external audio electronic device 201b satisfies the condition of the entity for changing the right of the communication link, the processor 280 can receive the right of the communication link between the first external audio electronic device 201a and at least one of a plurality of electronic devices that establish a communication link with the first external audio electronic device 201a from the first external audio electronic device 201a.

[0167] When the processor 280b receives a right of a third communication link between the first external audio electronic device 201a and a second electronic device among a plurality of electronic devices that establish a communication link with the first external audio electronic device 201a, the processor 280b can maintain and manage the third communication link established between the second electronic device and the first external audio electronic device 201a. The processor 280b can transmit a connection identification message (e.g., a poll packet message) to the second electronic device and receive a connection identification response message (e.g., an empty packet message) from the second electronic device through the third communication link in order to maintain the third communication link. The processor 280b can transmit an ACK message indicating that a data packet received from the second electronic device is normally received or a NACK message indicating that the data packet is not normally received to the second electronic device through the third communication link in order to manage the third communication link. The processor 280b can receive an ACK message indicating that a data packet is normally received or a NACK message indicating that the data packet is not normally received from the first external audio electronic device 201a capable of receiving the data packet from the second electronic device by monitoring the third communication link, and make a request for retransmission of the data packet to the second electronic device when the NACK message is received from the first external audio electronic device 201a. The processor 280b can receive the ACK message or the NACK message from the first external audio electronic device 201a within a predetermined time after receiving the data packet from the second electronic device. When no message is received from the first external audio electronic device 201 within the predetermined time, the processor 280b can make a request for retransmission of the data packet to the second electronic device. The processor 280b can query the first external audio electronic device 201a whether the data packet is received from the second electronic device and receive an ACK message or a NACK message from the first external audio electronic device 201a in response to the query. When the first external audio electronic device 201a is configured to make a request for retransmission of the data packet to the second electronic device, the processor 280b can not receive the ACK message or the NACK message from the first external audio electronic device 201a.

[0168] The processor 280b can receive a message indicating that a right is given to a communication link between the first external audio electronic device 201a corresponding to the master external audio electronic device and at least one among a plurality of electronic devices that establish a communication link with the first external audio electronic device 201a from the first external audio electronic device 201a through the communication circuit 210b, and maintain and manage the communication link of the at least one electronic device based on the received message indicating that the right is given.

[0169] The processor 280b can provide the same service as the first external audio electronic device 201a to a plurality of electronic devices that establish a communication link with the first external audio electronic device 201a based on connection information (e.g., SDP result information, supported feature information, and / or manufacturing data) related to the communication link.

[0170] When the second external audio electronic device 201b does not satisfy the condition of the entity for changing the right of the communication link, the processor 280b can automatically transfer the right of the specific communication link given to the second external audio electronic device 201b to the first external audio electronic device 201a. For example, in a state in which the second external audio electronic device 201b maintains and manages the state of the communication link (e.g., the third communication link) between the first external audio electronic device 201a and the second electronic device, the second external audio electronic device 201b can receive an event from the second electronic device. The second external audio electronic device 201b can automatically transfer the right of the third communication link to the first external audio electronic device 201a according to the type of the received event (e.g., reception of a call).

[0171] Based on the type of the event received from the second electronic device (e.g., reception of a call), the processor 280b can make a request for the first external audio electronic device to transfer the third communication link to allow the first external audio electronic device 201a to withdraw the right of the third communication link.

[0172] In a state in which the processor 280b maintains and manages the third communication link between the first external audio electronic device 201a and the second electronic device, the processor 280b can receive a message indicating withdrawal of the right of the third communication link and a message indicating giving of the right of the second communication link between the first electronic device and the first external audio electronic device 201a from the first external audio electronic device 201a. After returning the right of the third communication link to the first external audio electronic device 201a, the processor 280b can monitor the third communication link and receive data from the second external electronic device. The processor 280b can transmit and receive data to and from the first electronic device while managing and maintaining the second communication link.

[0173] When the processor 280b receives a message indicating giving of the right of the second communication link between the first electronic device and the first external audio electronic device 201a from the first external audio electronic device 201a in a state in which the processor 280b maintains and manages the third communication link between the first external audio electronic device 201a and the second electronic device, the processor 280b can manage and maintain the second communication link while managing and / or maintaining the third communication link.

[0174] The processor 280b can establish a communication link with the second electronic device based on information about the second electronic device received from the first external audio electronic device 201a corresponding to the master external audio electronic device and / or a request from the second electronic device.

[0175] The processor 280b can establish a first communication link with the first external audio electronic device 201a and receive information (e.g., address information) about the second electronic device and / or a message making a request to establish a communication link with the second electronic device from the first external audio electronic device 201a through the first communication link. The processor 280b can establish a fourth communication link with the second electronic device through the communication circuit 210b based on the information (e.g., address information) about the second electronic device. For example, the processor 280b can establish the fourth communication link with the second electronic device by using a paging operation, a pairing operation, and a connection operation of a Bluetooth classic communication technology. For example, the processor 280b can establish the fourth communication link with the second electronic device by using a broadcast scan operation and a connection operation of a BLE communication technology.

[0176] When a connection request is received from the second electronic device, the processor 280b can establish a fourth communication link with the second electronic device through the communication circuit 210b. For example, the processor 280b can establish the fourth communication link with the second electronic device by using a paging operation, a pairing operation, and a connection operation of a Bluetooth classic communication technology. For example, the processor 280b can establish the fourth communication link with the second electronic device by using a broadcast scan operation and a connection operation of a BLE communication technology.

[0177] The processor 280b can transmit connection information related to the fourth link to the first external audio electronic device 201a through the first communication link in order to allow the first external audio electronic device 201a to monitor the fourth communication link.

[0178] In order to maintain the fourth communication link established between the second external audio electronic device 201b and the second electronic device, the processor 280b can transmit a connection identification message (i.e., a poll packet message) to the second electronic device and receive a connection identification response message (i.e., an empty packet message) from the second electronic device.

[0179] To manage the fourth communication link established between the second external audio electronic device 201b and the second electronic device, the processor 280b can transmit, to the second electronic device, an ACK message indicating that a data packet (e.g., audio data) received from the second electronic device is normally received and a NACK message indicating that the data packet is not normally received. The processor 280b can monitor the fourth communication link and receive, from the first external audio electronic device 201a capable of receiving the data packet from the second electronic device, an ACK message indicating that the data packet (e.g., audio data) from the second electronic device is normally received and a NACK message indicating that the data packet is not normally received. When the NACK message is received from the first external audio electronic device 201a, the processor 280b can make a request for retransmission of the data packet to the second electronic device. The processor 280b can receive the ACK message or the NACK message from the first external audio electronic device 201a within a predetermined time after the data packet is received from the second electronic device. When no message is received from the first external audio electronic device 201a within the predetermined time, the processor 280b can make a request for retransmission of the data packet to the second electronic device. The processor 280b can query the first external audio electronic device 201a whether the data packet is received from the second electronic device and receive the ACK message or the NACK message from the first external audio electronic device 201a in response to the query. When the first external audio electronic device 201a is configured to make a request for retransmission of the data packet to the second electronic device, the processor 280b can not receive the ACK message or the NACK message from the first external audio electronic device 201a.

[0180] Figure 3 is a block diagram 300 schematically illustrating an electronic device according to an embodiment. According to various embodiments, the electronic device 301 can establish a communication link with the first external audio electronic device 201a and / or the second external audio electronic device 201b and establish a communication link with at least one of the first electronic device and / or the second electronic device. At least one of the first electronic device and / or the second electronic device that establishes a communication link with the electronic device 301 can include the same elements as the electronic device 301 in Figure 3

[0181] Referring to Figure 3 , the electronic device 301 includes a communication circuit 310, a processor 320, a memory 330, a communication circuit 350, and a display 360.

[0182] The electronic device 301 can be implemented substantially the same as or similar to the electronic device 101 of Figure 1 . For example, the electronic device 301 can be implemented as a smart phone supporting Bluetooth communication.

[0183] ​The electronic device 301 can establish a communication link with the pair of external audio electronic devices or at least one external electronic device through the communication circuit 310 using, for example, Bluetooth communication. According to an embodiment, the pair of external audio electronic devices and / or at least one external electronic device can be implemented as an electronic device supporting Bluetooth communication.

[0184] The communication circuit 310 can be implemented substantially the same as or similar to the communication module 190 of FIG. 1, or can include a plurality of communication circuits having the communication circuit 310 and using different communication technologies. The communication circuit 310 can be a communication circuit capable of performing Bluetooth communication, and can perform Bluetooth classic communication and BLE communication. Figure 1

[0185] The processor 320 can control overall operations of the electronic device 301.

[0186] When the electronic device 301 is connected to the external electronic device while the communication link with the first external audio electronic device 201b is established, the electronic device 301 can transmit, to the external electronic device, information (e.g., address information) about the second external audio electronic device 201 for establishing a communication link with the first external audio electronic device and / or a message making a request to establish a communication link with the second external audio electronic device.

[0187] When the electronic device 301 is connected to the external electronic device while the communication link with the first external audio electronic device is established, the electronic device 301 can make a request to the pair of first external audio electronic devices for information about the second external audio electronic device for establishing a communication link with the first external audio electronic device, and receive the information.

[0188] When the electronic device 301 is connected to the external electronic device while the communication link with the first external audio electronic device is established, the electronic device 301 can pre-receive information during a connection process for establishing a communication link with the first external audio electronic device, and store information about the second external audio electronic device for establishing a communication link with the first external audio electronic device.

[0189] When the electronic device 301 receives information about the second external audio electronic device for establishing a communication link with the first external audio electronic device during a connection process for establishing a communication link with the first external audio electronic device, the electronic device 301 can know the existence of the second external audio electronic device for establishing a communication link with the first external audio electronic device.

[0190] ​When electronic device 301 is connected to an external electronic device and a communication link is established with the first external audio electronic device 201b, electronic device 301 can send information about the external electronic device (e.g., device information) to the first external audio electronic device for establishing a communication link with the second external audio electronic device.

[0191] In order to send information about the external electronic device to a second external audio electronic device for establishing a communication link with the first external audio electronic device, the electronic device 301 may send information about the external electronic device to the first external audio electronic device.

[0192] When performing a Bluetooth communication connection operation based on communication circuit 310, processor 320 can display a user interface including information related to the external audio electronic device pair based on information included in the signal (e.g., broadcast signal) received from the external audio electronic device pair. For example, the information included in the signal (e.g., broadcast signal) received from the external audio electronic device pair may include at least one of the following: identification information of the external audio electronic device (hereinafter referred to as device identification information), user account information (hereinafter referred to as user account information), information indicating that it is currently pairing with another device (hereinafter referred to as current pairing information), a list of previously paired devices (hereinafter referred to as pairing list), information about devices that can be paired simultaneously (hereinafter referred to as simultaneous pairing information), transmission power (Tx power) information, and information about the detection area or remaining battery (hereinafter referred to as battery status information).

[0193] The processor 320 can display an image corresponding to the external audio electronics pair on the display 360 based on information included in the signal (e.g., a broadcast signal) received from the external audio electronics pair.

[0194] Figure 4A Figure 400a shows the search results for a pair of external audio electronics devices according to an embodiment. Figure 4B Figure 400b shows the search results for a pair of external audio electronics devices according to an embodiment.

[0195] like Figure 4A As shown, when performing Bluetooth connection operation, electronic device 301 displays an image 410 corresponding to the external audio electronic device pair based on information included in the signal (e.g., broadcast signal) received from the external audio electronic device pair.

[0196] like Figure 4B As shown, when performing a Bluetooth connection operation, the electronic device 301 displays an image 410 corresponding to the found pair of external audio electronic devices and the battery status 420 of each external audio electronic device based on information included in the signals received from the external audio electronic device pair.

[0197] An external electronic device including the same elements as those of the electronic device 301 can establish a communication link with the electronic device 301 that has established a communication link with the first external audio electronic device 201b. When a communication link is established with the electronic device 301, the external electronic device can establish a communication link with the second external audio electronic device based on information about the second external audio electronic device received from the electronic device 301 and / or a message making a request to establish a communication link with the second external audio electronic device.

[0198] The external electronic device can make a request to connect to the second external audio electronic device and establish a communication link with the second external audio electronic device. For example, the external electronic device can establish a communication link with the second external audio electronic device through a paging operation, a pairing operation, and a connection operation using a Bluetooth classic communication technique. For example, the external electronic device can establish a communication link with the second external audio electronic device through a broadcast scan operation and a connection operation using a BLE communication technique.

[0199] The memory 330 can store data or instructions related to the operation of the electronic device 301. Furthermore, the memory 330 can store information related to Bluetooth communication of the first external audio electronic device 201a, the second external audio electronic device 201b, and / or the at least one external electronic device. The information related to Bluetooth communication of the first external audio electronic device 201a, the second external audio electronic device 201b, and / or the at least one external electronic device can be transmitted to each of the first external audio electronic device 201a, the second external audio electronic device 201b, and / or the at least one external electronic device through a server. For example, when the first external audio electronic device 201a and the second external audio electronic device 201b are devices supporting the same user account or a similar user account (e.g., a family account), the first external audio electronic device 201a and the second external audio electronic device 201b can share information related to Bluetooth communication generated between the first external audio electronic device 201a and the second external audio electronic device 201b through an external device (e.g., an external server) linked to the first external audio electronic device 201a or the second external audio electronic device 201b via the same or similar user account.

[0200] The display 360 can be implemented substantially the same as or similar to the display device 160 of Figure 1 The display 360 can display an operation of Bluetooth communication of the first external audio electronic device 201a, the second external audio electronic device 201b, and / or the at least one external electronic device.

[0201] Figure 5A is a diagram 500a illustrating an operation for establishing a communication link between electronic devices according to an embodiment.Figure 5B is a diagram 500b illustrating operations for establishing a communication link between electronic devices according to an embodiment.

[0202] Referring to Figure 5A and Figure 5B According to various embodiments, the pair of external audio electronic devices 550a and 550b, which operate as a pair, include first external audio electronic devices 551a and 551b and second external audio electronic devices 553a and 553b. The first external audio electronic devices 551a and the second external audio electronic devices 553a each are included in the external audio device 550a. The first external audio electronic devices 551b and the second external audio electronic devices 553b each are included in the external audio device 550b.

[0203] When the first external audio electronic devices 551a or 551b and the second external audio electronic devices 553a or 553b are separate external audio electronic devices, the first external audio electronic devices 551a or 551b can include a pair of external audio electronic devices operating as a pair, and the second external audio electronic devices 553a or 553b can include a pair of external audio electronic devices operating as a pair.

[0204] The first external audio electronic devices 551a and 551b and the second external audio electronic devices 553a and 553b can include communication circuitry (e.g., Bluetooth communication circuitry), and can establish (or create) a communication link between the first external audio electronic devices 551a and 551b (e.g., right (R) of a wireless earbud) and the second external audio electronic devices 553a and 553b (e.g., left (L) of a wireless earbud) through the communication circuitry.

[0205] The pair of external audio electronic devices 550a and 550b can be configured to have a role as a master external audio electronic device and a sub external audio electronic device during a communication connection process, and the roles can change according to certain conditions even after the communication link is established.

[0206] The master external audio electronic device can establish a communication link with a plurality of electronic devices, and maintain and manage the established communication link. The master external audio electronic device can maintain and manage a communication link established with the sub external audio electronic device.

[0207] When a first communication link 571 is established between the first external audio electronic devices 551a and the second external audio electronic devices 553a and the first external audio electronic devices 551a are configured as a master external audio electronic device, the first external audio electronic devices 551a can establish a second communication link 572 with the first electronic device 501a, a third communication link 573 with the second electronic device 560a, and maintain and manage the communication links.

[0208] When the second external audio electronic device 553a is configured as a sub external audio electronic device, the second external audio electronic device 553a can receive data from the first electronic device 501a and the second electronic device 560a while monitoring the second communication link 572 and the third communication link 573.

[0209] The second external audio electronic device 553a can receive, from the first external audio electronic device 551a, connection information related to the second communication link established between the first external audio electronic device 551a and the first electronic device 501a and connection information related to the third communication link established between the first external audio electronic device 551a and the second electronic device 560a. The second external audio electronic device 553a can receive data from the first electronic device 501a and the second electronic device 560a while monitoring the second communication link 572 and the third communication link 573 based on the connection information related to the second communication link and the connection information related to the third communication link.

[0210] The monitoring of the communication link is not limited to the method based on the connection information related to the communication link and can be performed in other ways.

[0211] When the first external audio electronic device 551a as a master external audio electronic device transfers the right of the third communication link 573 established with at least one of the first electronic device 501a or the second electronic device 560a to the second external audio electronic device 553a as a sub external audio electronic device based on the condition of the entity for changing the right of the communication link, the second external audio electronic device 553a can maintain and manage (e.g., manage data transmission and reception) the third communication link 573 established between the first external audio electronic device 551a and the second electronic device 560a on behalf of the first external audio electronic device 551a.

[0212] The first external audio electronic device 551a can transfer the right of the third communication link 573 established between the first external audio electronic device 551a and the second external audio electronic device 560a to the second external audio electronic device 553a and monitor the third communication link 573.

[0213] Reference Figure 5BThe first communication link 571 can be established between the first external audio electronic device 551b and the second external audio electronic device 553b, and the second communication link 582 can be established between the first external audio electronic device 551b and the first electronic device 501b. When information about the second electronic device 560b with which the third communication link 583 is to be established with the first electronic device 501b is received from the first electronic device 501b, the first external audio electronic device 551b can transmit the received information about the second electronic device 560b to the second external audio electronic device 553b.

[0214] The second external audio electronic device 553b can make a request to connect to the second electronic device 560b based on the information about the second electronic device 560b received from the first external audio electronic device 551b, to establish the fourth communication link 584 with the second electronic device 560b, and maintain and manage (e.g., manage data transmission and reception) the fourth communication link 584 established with the second electronic device 560b.

[0215] The first external audio electronic device 551b can monitor the fourth communication link 584 established between the second external audio electronic device 553b and the second electronic device 560b.

[0216] The first external audio electronic device 551b can receive data from the second electronic device 560b while monitoring the fourth communication link 584 based on the connection information related to the fourth communication link established between the second external audio electronic device 553b and the second electronic device 560b received from the second external audio electronic device 553b.

[0217] When the third communication link 583 is established with the second electronic device 560b in a state in which the second communication link 582 is established with the first external audio electronic device 551b as a master external audio electronic device, the first electronic device 501b can transmit information about the second external audio electronic device 553b to the second electronic device 560b through the third communication link 583.

[0218] The first electronic device 501b can transmit a request to the first external audio electronic device 551b to receive information about the second external audio electronic device 553b through the second communication link 582, or can receive information about the second external audio electronic device 553b in advance during a connection process for establishing the second communication link 582 with the first external audio electronic device 551b, and store the information about the second external audio electronic device 553b.

[0219] When information on the second external audio electronic device 553b is received from the first electronic device 501b in a state in which the third communication link 583 is established with the first electronic device 501b, the second electronic device 560b can make a request to connect to the second external audio electronic device 553b based on the information on the second external audio electronic device 553b, and establish a fourth communication link 584 with the second external audio electronic device 553b.

[0220] According to various embodiments, an audio electronic device can include a communication circuit and a processor operatively connected to the communication circuit, wherein the processor can be configured to establish a first communication link with an external audio electronic device through the communication circuit, receive data from a first external electronic device by monitoring a second communication link established between the external audio electronic device and the first external electronic device, and manage and / or maintain a third communication link when a right to the third communication link established between the external audio electronic device and a second external electronic device is given from the external audio electronic device, and transmit and receive data to and from the second external electronic device.

[0221] When the first communication link is established, the processor can be configured to set the external audio electronic device as a master audio electronic device acting as a master device, and set the audio electronic device as a sub audio electronic device acting as a slave device.

[0222] The processor can be configured to monitor the second communication link based on information on a second communication link connection related received from the external audio electronic device.

[0223] When the audio electronic device satisfies a condition for changing an entity of a right to the third communication link, the processor can be configured to receive a request for changing the entity of the right to the third communication link from the external audio electronic device, and manage and / or maintain the third communication link.

[0224] The condition for changing the entity of the right to the communication link can include at least one of communication quality information, state information of the audio electronic device and / or the external audio electronic device, a connection state of communication with a plurality of external electronic devices, or a user selection.

[0225] When the audio electronic device operating as the entity of the right to the third communication link does not satisfy the condition for changing the entity of the right to the third communication link, the processor can be configured to return the right to the third communication link to the external audio electronic device, monitor the third communication link, and receive data from the second external electronic device.

[0226] When a specific event is received from the second external electronic device and a condition for processing the specific event is not satisfied, the processor can be configured to return the right of the third communication link to the external audio electronic device, monitor the third communication link, and receive data from the second external electronic device.

[0227] When a specific event is received from the second external electronic device and a condition for processing the specific event is satisfied, the processor can be configured to maintain the right of the third communication link and process the specific event.

[0228] The processor can be configured to transmit and receive a packet message for maintaining the third communication link to and from the second external electronic device through the third communication link.

[0229] The processor can be configured to transmit a response message to the second external electronic device, the response message indicating whether data transmitted from the second external electronic device through the third communication link is normally received.

[0230] When the external audio electronic device does not monitor the third communication link and data is received from the second external electronic device through the third communication link, the processor can be configured to notify the external audio electronic device that data is received through the third communication link through the first communication link.

[0231] When the right of the third communication link is withdrawn from the external audio electronic device and the right of the second communication link is given while managing and / or maintaining the third communication link, the processor can be configured to return the right of the third communication link to the external audio electronic device, monitor the third communication link to receive data from the second external electronic device, manage and / or maintain the second communication link, and transmit and receive data to and from the first external electronic device.

[0232] When the right of the second communication link is given from the external audio electronic device while managing and / or maintaining the third communication link, the processor can be configured to manage and / or maintain the third communication link and manage and / or maintain the second communication link.

[0233] According to various embodiments, an audio electronic device can include a communication circuit and a processor operatively connected to the communication circuit, wherein the processor can be configured to establish a first communication link with an external audio electronic device through the communication circuit, establish a second communication link with a first external electronic device, transmit information related to a second communication link connection associated with the second communication link to the external audio electronic device through the first communication link, establish a third communication link with a second external electronic device, transmit information related to a third communication link connection associated with the third communication link to the external audio electronic device through the first communication link, receive information about the external audio electronic device through the first communication link, identify whether to give a right of the second communication link based on the received information, give the right of the second communication link to the external audio electronic device based on the identification, and monitor the second communication link.

[0234] When the information about the external audio electronic device matches a condition for changing a right of the second communication link, the processor can be configured to give the right of the second communication to the external audio electronic device.

[0235] According to various embodiments, an electronic device can include a communication circuit, a display, and at least one processor operatively connected to the communication circuit and the display, wherein the at least one processor can be configured to establish a first communication link with an external electronic device through the communication circuit, receive information about an audio electronic device from the external electronic device through the first communication link, and establish a second communication link with the audio electronic device based on the received information about the audio electronic device.

[0236] The information about the audio electronic device can include address information of the audio electronic device.

[0237] According to various embodiments, an audio electronic device can include a communication circuit, a speaker, and a processor operatively connected to the communication circuit and the speaker, wherein the processor can be configured to establish a first communication link with an external audio electronic device through the communication circuit, monitor a second communication link established between the external audio electronic device and a first external electronic device, receive data from the first external electronic device, receive information about a second external electronic device establishing a third communication link with the first external electronic device through the first communication link, and establish a fourth communication link with the second external electronic device based on the received information about the second external electronic device.

[0238] The processor can be configured to receive connection information related to the second communication link from the external audio electronic device, and monitor the second communication link based on the received connection information related to the second communication link.

[0239] The processor can be configured to transmit connection information related to the fourth communication link to the external audio electronic device through the first communication link.

[0240] Figure 6 FIG. 6 is a flowchart 600 illustrating a communication link management operation according to an embodiment. Steps for providing the communication link management operation can include steps 601 through 617. At least one of steps 601 through 617 can be omitted, the order of some steps can be changed, or other steps can be added.

[0241] Referring to Figure 6 In step 601, a first communication link 571 is established between a first external audio electronic device 610 and a second external audio electronic device 630 operating as a pair.

[0242] In step 603, the first external audio electronic device 610 establishes a second communication link 572 with a first electronic device 650 through the communication circuit 210a. Step 603 is described after step 601, but step 601 can be performed after step 603. In step 607, the second external audio electronic device 630 monitors the second communication link established between the first external audio electronic device 610 and the first electronic device 650.

[0243] The second external audio electronic device 630 can receive connection information related to the second communication link established between the first external audio electronic device 610 and the first electronic device 650 from the first external audio electronic device 610 through the first communication link, and monitor the second communication link based on the received connection information related to the second communication link.

[0244] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address) of the first electronic device 650, clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (Clock Local) of a master device), channel information (e.g., a channel map used), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key).

[0245] The second external audio electronic device 630 can receive data transmitted and received between the first external audio electronic device 610 and the first electronic device 650 by monitoring the second communication link.

[0246] In step 609, the first external audio electronic device 610 establishes a third communication link 573 through the communication circuit 210a. The first external audio electronic device 610 can maintain and manage the third communication link.

[0247] In step 611, the second external audio electronic device 630 monitors the third communication link established between the first external audio electronic device 610 and a second electronic device 670.

[0248] The second external audio electronic device 630 can receive connection information related to the third communication link established between the first external audio electronic device 610 and the second electronic device 670 from the first external audio electronic device 610 through the first communication link, and monitor the third communication link based on the received connection information related to the third communication link.

[0249] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address) of the second electronic device 670, clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (Clock Local) of a master device), channel information (e.g., a used channel map), service discovery protocol (SDP) result information, supported features, manufacturing data, or key information (e.g., a link key).

[0250] The second external audio electronic device 630 can receive data transmitted and received between the first external audio electronic device 610 and the second electronic device 670 by monitoring the third communication link.

[0251] In step 613, the first external audio electronic device 610 transmits a message indicating the right of the third communication link established between the second electronic device 670 and the first external audio electronic device 610 to the second external audio electronic device 630.

[0252] The first external audio electronic device 610 can identify whether a condition for changing the right of the entity of the communication link to the second external audio electronic device 630 is satisfied. For example, the condition for changing the right of the entity of the communication link can include at least one of communication quality information of the external audio electronic device (e.g., the first external audio electronic device 610 and / or the second external audio electronic device 630), state information of the external audio electronic device, a connection state of communication between the external audio electronic device and a plurality of electronic devices, or a user selection. When the second external audio electronic device 630 satisfies the condition for changing the right of the entity of the communication link, the first external audio electronic device 610 can transmit a message indicating that the right of the communication link is given. The first external audio electronic device 610 can identify at least one communication link in which the right of the entity is to be changed among a plurality of communication links established between the first external audio electronic device 610 and each of a plurality of electronic devices according to a predetermined condition.

[0253] For example, the first external audio electronic device 610 can identify at least one communication link for which the entity of rights is to be changed according to an order in which communication links with the first external audio electronic device 610 are generated. Additionally or alternatively, the first external audio electronic device 610 can identify a communication link established with at least one electronic device that does not output audio data among a plurality of electronic devices with which the first external audio electronic device 610 establishes communication links as a communication link for which the entity of rights is to be changed.

[0254] In step 615, the second external audio electronic device 630 maintains and manages the third communication link.

[0255] The second external audio electronic device 630 can maintain and manage the third communication link on behalf of the first external audio electronic device 610 while transmitting and receiving data to and from the second electronic device 670 based on a message indicating that the rights of the third communication link are given to the second external audio electronic device 630 received from the first external audio electronic device 610.

[0256] In step 617, the first external audio electronic device 610 receives data from the second electronic device 670 by monitoring only the third communication link established between the first external audio electronic device 610 and the second electronic device 670.

[0257] Figure 7 FIG. 7 is a flowchart 700 illustrating a communication link management operation of a first external audio electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 701 to 713. The communication link management operation can be performed by the first external audio electronic device 610 or the processor 280a of the first external audio electronic device. At least one of steps 701 to 713 can be omitted, the order of some steps can be changed, or other steps can be added.

[0258] In step 701, the first external audio electronic device establishes a first communication link with a second external audio electronic device 630 through a communication circuit 210a.

[0259] The first external audio electronic device and the second external audio electronic device can be configured such that, by the step for establishing the first communication link, the first external audio electronic device operates as a master external audio electronic device and the second external audio electronic device operates as a slave external audio electronic device. The first external audio electronic device can maintain and manage the first communication link while transmitting and receiving data to and from the second external audio electronic device.

[0260] The first or second external audio electronic device can notify the user that the first and second external audio electronic devices are connected to each other through various methods (e.g., sound or vibration) recognizable by the user.

[0261] In step 703, the first external audio electronic device establishes a second communication link with the first electronic device 650 through the communication circuit 210a.

[0262] The first external audio electronic device can maintain and manage the second communication link while transmitting and receiving data to and from the first electronic device.

[0263] In step 705, the first external audio electronic device transmits information for monitoring the second communication link to the second external audio electronic device.

[0264] The first external audio electronic device can transmit connection information related to the second communication link established with the first electronic device to the second external audio electronic device through the first communication link, and allow the second external audio electronic device to monitor the second communication link.

[0265] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address), clock information (e.g., at least one of a Bluetooth piconet clock or a master's CLKN (Clock Local)), channel information (e.g., a used channel map), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key) of each of the first electronic device and the first external audio electronic device.

[0266] In step 707, the first external audio electronic device establishes a third communication link with the second electronic device 670 through the communication circuit 210a.

[0267] The first external audio electronic device can maintain and manage the third communication link while transmitting and receiving data to and from the second electronic device.

[0268] In step 709, the first external audio electronic device transmits monitoring information to the second external audio electronic device.

[0269] The first external audio electronic device can transmit connection information related to the third communication link established with the second electronic device to the second external audio electronic device through the first communication link, and allow the second external audio electronic device to monitor the third communication link.

[0270] In step 711, the first external audio electronic device transmits a message indicating that the right to the third communication link is given to the second external audio electronic device.

[0271] The first external audio electronic device can identify whether a condition for changing an entity of right of at least one communication link among the communication links with each of the plurality of electronic devices to the second external audio electronic device is satisfied. For example, the condition for changing the entity of right of the communication link can include at least one of communication quality information of the external audio electronic device (e.g., the first external audio electronic device 610 and / or the second external audio electronic device 630), state information of the external audio electronic device, a connection state of communication between the external audio electronic device and the plurality of electronic devices, or a user selection. The first external audio electronic device can receive communication quality information of a second communication link or a third communication link through the first communication link, and the second external audio electronic device can monitor reception of data through the second communication link or the third communication link. When the condition for changing the entity of right of the communication link to the second external audio electronic device is satisfied, the first external audio electronic device can transmit a message to the second external audio electronic device indicating that the right of the third communication link established between the first external audio electronic device and a second electronic device among the first and second electronic devices that established a communication link with the first external audio electronic device 610 is to the second external audio electronic device. The first external audio electronic device can identify at least one communication link in which the entity of right is to be changed among the plurality of communication links established between the first external audio electronic device and each of the plurality of electronic devices according to a predetermined condition. For example, the first external audio electronic device can identify at least one communication link in which the entity of right is to be changed according to an order in which a communication link is established with the first external audio electronic device. Additionally or alternatively, the first external audio electronic device can identify a communication link established with at least one electronic device that does not output audio data among the plurality of electronic devices that established a communication link with the first external audio electronic device as a communication link in which the entity of right is to be changed.

[0272] In step 713, the first external audio electronic device monitors the third communication link and receives data. The first external audio electronic device can transfer the right of the third communication link established between the second electronic device and the first external audio electronic device to the second external audio electronic device and monitor the third communication link. The first external audio electronic device can monitor the third communication link and receive data from a point in time at which the right of the third communication link is given to the second external audio electronic device. After the right of the third communication link is transferred to the second external audio electronic device, the first external audio electronic device can monitor the third communication link from a point in time at which a request to monitor the third communication link is received from the second external audio electronic device.

[0273] Figure 8is a flowchart 800 illustrating a communication link management operation of a second external audio electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 801 through 813. The communication link management operation can be performed by the second external audio electronic device. At least one of steps 801 through 813 can be omitted, the order of some steps can be changed, or other steps can be added.

[0274] In step 801, the second external audio electronic device establishes a first communication link with the first external audio electronic device through a communication circuit.

[0275] The first external audio electronic device or the second external audio electronic device can notify a user that the first external audio electronic device and the second external audio electronic device are connected to each other through various methods (e.g., sound or vibration) that the user can recognize.

[0276] In the operation for establishing the first communication link, the first external audio electronic device can be configured as a master external audio electronic device, and the second external audio electronic device can be configured as a slave external audio electronic device. The first external audio electronic device as the master external audio electronic device can maintain and manage the first communication link while transmitting and receiving data to and from the second external audio electronic device.

[0277] In step 803, the second external audio electronic device monitors a second communication link 650 established between the first external audio electronic device and the first electronic device.

[0278] The second external audio electronic device can receive connection information related to the second communication link established between the first external audio electronic device and the first electronic device 650 from the first external audio electronic device, and monitor the second communication link based on the received connection information related to the second communication link.

[0279] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address), clock information (e.g., at least one of a Bluetooth piconet clock or a master device's CLKN (Clock Local)), channel information (e.g., a used channel map), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key) of each of the first electronic device and the first external audio electronic device.

[0280] In step 805, the second external audio electronic device receives data from the first electronic device based on monitoring the second communication link.

[0281] In step 807, the second external audio electronic device monitors a third communication link established between the first external audio electronic device and the second electronic device 670.

[0282] Connection information related to the third communication link established between the first external audio electronic device and the second electronic device 670 can be received from the first external audio electronic device, and the third communication link can be monitored based on the received connection information related to the third communication link.

[0283] In step 809, the second external audio electronic device receives data from the second electronic device based on the monitoring of the third communication link.

[0284] In step 811, the second external audio electronic device receives a message indicating that the right to the third communication link is given from the first external audio electronic device.

[0285] In step 813, the second external audio electronic device transmits and receives data to and from the second electronic device, and maintains and manages the third communication link.

[0286] When a message indicating that the right to the third communication link is given is received from the first external audio electronic device while monitoring the third communication link to receive data from the second electronic device, the second external audio electronic device configured as a sub external audio electronic device can transmit and receive data to and from the second electronic device as a role of a master external audio electronic device of the third communication link, and maintain and manage the third communication link.

[0287] Figure 9 FIG. 9 is a flowchart 900 illustrating operations of an electronic device outputting data according to an embodiment. Operations for providing a communication link management operation can include steps 901 to 905. The communication link management operation can be performed by the electronic device 101 or at least one processor. At least one of steps 901 to 905 can be omitted, the order of some steps can be changed, or other steps can be added.

[0288] In step 901, the electronic device establishes a communication link (e.g., a second communication link 572) with a first external audio electronic device 551a configured as a master external audio electronic device among a pair of external audio electronic devices operating as a pair.

[0289] When the electronic device (e.g., the first electronic device 650) establishes a second communication link with the first external audio electronic device 610, the electronic device can transmit a connection identification message (e.g., a poll packet message) to the first external audio electronic device that is an entity of rights of the second communication link through the second communication link and receive a connection identification response message (e.g., an empty packet message) from the first external audio electronic device, and maintain the third communication link.

[0290] The electronic device (e.g., the first electronic device 650) can inform the user of the connection with the pair of external audio electronic devices operating as a pair through various methods (e.g., sound or vibration) that the user can recognize.

[0291] In step 903, the electronic device receives a request for an audio service. For example, a music application among various applications for outputting audio data can be executed, and when the user selects the reproduction of audio data in the music application, a request for the reproduction of the audio data is received.

[0292] In step 905, the electronic device transmits audio data to the first external audio electronic device through the communication link established with the first external audio electronic device.

[0293] The electronic device (e.g., the first electronic device 650) can transmit audio data to the first external audio electronic device that is an entity of rights of the second communication through the second communication link. Even though the current entity of rights of the second communication link is the second external audio electronic device, the electronic device can not know the change to the second external audio electronic device to the entity of rights of the second communication link. Accordingly, the electronic device transmits audio data through the second communication link established with the first external audio electronic device, and the second external audio electronic device that is the current entity of rights can receive data from the electronic device. Also, when the second external audio electronic device transmits data to the electronic device to manage / maintain the second communication link, the electronic device can recognize that the data is received from the first external audio electronic device, not from the second external audio electronic device.

[0294] When the first external audio electronic device and the second external audio electronic device establish the first communication link and the first external audio electronic device shares the second communication link information with the second external audio electronic device, the second external audio electronic device can also receive audio data by monitoring the second communication link.

[0295] The electronic device (e.g., the first electronic device 650) can transmit audio data to the first external audio electronic device that is an entity of rights of the second communication link through the second communication link.

[0296] Figure 10Ais a diagram 1000a illustrating a communication link management operation according to an embodiment. Figure 10B is a diagram 1000b illustrating a communication link management operation according to an embodiment. Figure 10C is a diagram 1000c illustrating a communication link management operation according to an embodiment.

[0297] Figures 10A to 10C The first external audio electronic device 1010 of FIG. 1A can be implemented substantially the same as or similar to the first external audio electronic device 551a of FIG. 5A, and the second external audio electronic device 1030 can be implemented substantially the same as or similar to the second external audio electronic device 553a of FIG. 5B. Figure 5A The first external audio electronic device 1010 of FIG. 1A can be implemented substantially the same as or similar to the first external audio electronic device 551a of FIG. 5A, and the second external audio electronic device 1030 can be implemented substantially the same as or similar to the second external audio electronic device 553a of FIG. 5B. Figure 5A The first external audio electronic device 1010 of FIG. 1A can be implemented substantially the same as or similar to the first external audio electronic device 551a of FIG. 5A, and the second external audio electronic device 1030 can be implemented substantially the same as or similar to the second external audio electronic device 553a of FIG. 5B.

[0298] As shown in FIG. 1A, the first external audio electronic device 1010 configured as a master external audio electronic device and the second external audio electronic device 1030 configured as a slave external audio electronic device can establish a first communication link 1071, and the first external audio electronic device 1010 as an entity having a right of the first communication link can maintain and manage the first communication link while transmitting and receiving data to and from the second external audio electronic device 1030 through the first communication link 1071. The first external audio electronic device 1010 can establish a second communication link 1072 with the first electronic device 1050 and a third communication link 1073 with the second electronic device 1070. The first external audio electronic device 1010 as an entity having a right of the second communication link 1072 and the third communication link 1073 can maintain and manage the second communication link 1072 and the third communication link 1073 while transmitting and receiving data to and from the first electronic device 1050 through the second communication link 1072 and to and from the second electronic device 1070 through the third communication link 1073. Figure 10A The first external audio electronic device 1010 can share connection information related to the second communication link and connection information related to the third communication link with the second external audio electronic device 1030 through the first communication link 1071. The second external audio electronic device 1030 can monitor the second communication link 1072 and the third communication link 1073 (as indicated by reference numerals 1031 and 1033). The second external audio electronic device 1030 can monitor the second communication link 1072 and the third communication link 1073 (as indicated by reference numerals 1031 and 1033) based on the connection information related to the second communication link and the connection information related to the third communication link received from the first external audio electronic device 1010, and receive data from the first electronic device 1050 and the second electronic device 1070.

[0299]

[0300] ​As Figure 10B When the first external audio electronic device 1010 gives the right of the third communication link established between the first external audio electronic device 1010 and the second electronic device 1070 to the second external audio electronic device 1030 based on the conditions of the entity for changing the right of the communication link as illustrated in FIG. 10, the second external audio electronic device 1030 can transmit and receive data to and from the second electronic device 1070 through the third communication link established between the first external audio electronic device 1010 and the second electronic device 1070 without any direct connection with the second electronic device 1070.

[0301] For example, when the signal strength between the second external audio electronic device 1030 and the second electronic device 1070 (e.g., -65 dBm) is higher than the signal strength between the first external audio electronic device 1010 and the second electronic device 1070 (e.g., -75 dBm) while the second external audio electronic device 1030 monitors the second communication link 1072 and the third communication link 1073 (as illustrated by reference numerals 1031 and 1033), the first external audio electronic device 1010 can give the right of the third communication link 1073 to the second external audio electronic device 1030.

[0302] When the first external audio electronic device 1010 identifies that the battery level of the first external audio electronic device (e.g., 45%) is lower than the battery level of the second external audio electronic device (e.g., 50%) while the second external audio electronic device 1030 monitors the second communication link 1072 and the third communication link 1073 (as illustrated by reference numerals 1031 and 1033), the first external audio electronic device 1010 can give the right of the third communication link 1073 to the second external audio electronic device 1030.

[0303] When the first external audio electronic device 1010 detects that the first external audio electronic device 1010 is separated from the user's ear while the second external audio electronic device 1030 monitors the second communication link 1072 and the third communication link 1073 (as illustrated by reference numerals 1031 and 1033), the right of the second communication link and / or the right of the third communication link can be given to the second external audio electronic device 1030 worn on the user's ear.

[0304] When the first external audio electronic device 1010 establishes the third communication link 1073 with the second electronic device 1070 after establishing the second communication link 1072 with the first electronic device 1050, the right of the third communication link 1073, which is the last established communication link, can be given to the second external audio electronic device 1030.

[0305] For example, the first electronic device can establish a communication link with the first external audio electronic device 1010 or the second external audio electronic device 1030 based on a selection of a user of the first electronic device 1050, and the second electronic device 1070 can establish a communication link with the first external audio electronic device 1010 or the second external audio electronic device 1030 based on a selection of a user of the second electronic device 1070.

[0306] The first external audio electronic device 1010 can give the right of the third communication link to the second external audio electronic device, and stop data transmission and reception through the third communication link. The second external audio electronic device 1030 can transmit and receive data to and from the second electronic device 1070 through the third communication link, and maintain and manage the third communication link (as indicated by reference numeral 1035), and monitor the second communication link (as indicated by reference numeral 1031) to receive data from the first electronic device 1050. As Figure 10C indicated, when receiving data (e.g., audio data) from the second electronic device 1070 while the first external audio electronic device 1010 maintains and manages the first communication link 1071 and the second communication link 1072 and the second external audio electronic device 1030 maintains and manages the third communication link (as indicated by reference numeral 1035) and monitors the second communication link 1072 (as indicated by reference numeral 1031), a request to monitor the third communication link can be made to the first external audio electronic device 1010 through the first communication link 1071. When the second external audio electronic device 1030 makes a request to monitor the third communication link, the first external audio electronic device 1010 can monitor the third communication link (as indicated by reference numeral 1037) and receive data from the second electronic device 1070. After giving the right of the third communication link to the second external audio electronic device 1030, the first external audio electronic device 1010 can monitor the third communication link and receive data (e.g., audio data) transmitted from the second electronic device 1070 without any request to monitor the third communication link from the second external audio electronic device 1030.

[0307] The first external audio electronic device 1010 can maintain both the monitoring 1031 of the second communication link and the monitoring 1037 of the third communication link, or maintain only one of the monitoring 1031 of the second communication link or the monitoring 1037 of the third communication link, according to an operating state of each of the first electronic device 1050 and the second electronic device 1070. For example, when the first electronic device is currently in a standby mode and the second electronic device 1070 is in a music reproduction mode, only the monitoring of the third communication link (as indicated by reference numeral 1037) can be maintained.

[0308] The second external audio electronic device 1030 can make a request for revoking the right of the third communication link to the first external audio electronic device 1010, or the right of the third communication link can be automatically revoked by the first external audio electronic device 1010 based on a condition of an entity for changing the right of the communication link.

[0309] For example, when the signal strength between the second external audio electronic device 1030 and the second electronic device 1070 is lower than the signal strength between the first external audio electronic device 1010 and the second electronic device 1070, the first external audio electronic device 1010 can automatically revoke the right of the third communication link from the second external audio electronic device 1030, or the second external audio electronic device 1030 can make a request for revoking the right of the third communication link to the first external audio electronic device 1010.

[0310] When the battery level of the second external audio electronic device 1030 is lower than the battery level of the first external audio electronic device 1010, the first external audio electronic device 1010 can automatically revoke the right of the third communication link from the second external audio electronic device 1030, or the second external audio electronic device 1030 can make a request for revoking the right of the third communication link to the first external audio electronic device 1010.

[0311] To identify an entity of the right of the communication link (e.g., the second communication link or the third communication link), the first external audio electronic device 1010 and the second external audio electronic device 1030 can periodically or upon generation of an event (e.g., a reception event of data) exchange device information (battery status information or signal strength information with an external electronic device) with the first electronic device 1050 or the second electronic device 1070.

[0312] Figure 11 FIG. 1100 is a diagram 1100 illustrating a communication link management operation according to an embodiment. Operations for providing the communication link management operation can include steps 1111 to 1121. At least one of steps 1111 to 1121 can be omitted, the order of some steps can be changed, or other steps can be added.

[0313] In step 1111, the first external audio electronic device 1110 and the second external audio electronic device 1130 establish a first communication link and perform bidirectional communication. When the second external audio electronic device 1130 satisfies a condition of an entity for changing the right of the communication link, the first external audio electronic device 1110 can transfer the right of a third communication link established between the first external audio electronic device 1110 and the second electronic device to the second external audio electronic device 1130.

[0314] In step 1113, the first external audio electronic device 1110 maintains and manages the second communication link established with the first electronic device. The first external audio electronic device 1110 monitors the third communication link whose right is transferred to the second external audio electronic device 1130.

[0315] In step 1115, the second external audio electronic device 1130 maintains and manages the third communication link established between the first external audio electronic device and the second electronic device based on the right of the third communication link given from the first external audio electronic device 1110. The second external audio electronic device 1130 can monitor the second communication link.

[0316] In step 1117, the second external audio electronic device 1130 does not satisfy a condition of an entity for changing the right of the communication link, or the second external audio electronic device 1130 receives a specific event. The condition of the entity for changing the right of the communication link can include at least one of communication quality information, state information of the external audio electronic device, a connection state of communication between the external audio electronic device and a plurality of electronic devices, or a user selection. The specific event corresponding to the condition for withdrawing the right can be identified according to capability information of the first external audio electronic device 1110 and the second external audio electronic device 1130. For example, when a call is received from the second electronic device through the third communication link, or when a microphone is included only in the first external audio electronic device 1110, the entity of the right of the third communication link can be changed from the second external audio electronic device 1130 to the first external audio electronic device 1110.

[0317] In step 1119, the second external audio electronic device 1130 transmits a message making a request to withdraw the right of the third communication link to the first external audio electronic device 1110.

[0318] In step 1121, the first external audio electronic device 1110 withdraws the right of the third communication link according to the request from the second external audio electronic device 1130, and manages the third communication link while transmitting and receiving data to and from the second electronic device through the third communication link. The second external audio electronic device 1130 can monitor the third communication link.

[0319] Figure 12 FIG. 1200 is a diagram illustrating a communication link management operation according to an embodiment. Operations for providing the communication link management operation can include steps 1211 to 1221. At least one of steps 1211 to 1221 can be omitted, the order of some steps can be changed, or other steps can be added.

[0320] In step 1211, the first external audio electronic device 1210 and the second external audio electronic device 1230 establish the first communication link and perform bidirectional communication. When the second external audio electronic device 1230 satisfies the condition of the entity for changing the right of the communication link, the first external audio electronic device 1210 can transfer the right of the third communication link established between the first external audio electronic device 1210 and the second electronic device to the second external audio electronic device 1230.

[0321] In step 1213, the first external audio electronic device 1210 maintains and manages the second communication link established with the first electronic device, and monitors the third communication link.

[0322] In step 1215, the second external audio electronic device 1230 maintains and manages the third communication link established between the first external audio electronic device 1210 and the second electronic device based on the right of the third communication link given from the first external audio electronic device 1210, and monitors the second communication link.

[0323] In step 1217, the first external audio electronic device 1210 identifies that the second external audio electronic device 1230 does not satisfy the condition of the entity for changing the right of the communication link, or identifies generation of a specific event. It can be identified that the second external audio electronic device 1230 does not satisfy the condition of the entity for changing the right of the communication link, or it can be identified that the generation of a specific event corresponding to the condition of withdrawing the right of the communication link from the second electronic device by monitoring the third communication link. The specific event corresponding to the condition of withdrawing the right can be identified according to the capability information of the first external audio electronic device 1210 and the second external audio electronic device 1230. For example, when a call is received from the second electronic device through the third communication link and a microphone is included only in the first external audio electronic device 1210, it can be identified that the entity of the right of the third communication link needs to be changed from the second external audio electronic device 1230 to the first external audio electronic device 1210.

[0324] In step 1219, the first external audio electronic device 1210 transmits a message indicating withdrawal of the right of the third communication link to the second external audio electronic device 1230.

[0325] In step 1221, the first external audio electronic device 1210 withdraws the right of the third communication link from the second external audio electronic device 1230 while transmitting and receiving data to and from the second electronic device through the third communication link, and manages the third communication link.

[0326] Figure 13is a diagram 1300 illustrating a communication link management operation according to an embodiment. Operations for providing the communication link management operation can include steps 1311 through 1319. According to an embodiment, at least one of steps 1311 through 1319 can be omitted, the order of some steps can be changed, or other steps can be added.

[0327] In step 1311, the first external audio electronic device 1310 and the second external audio electronic device 1330 establish a first communication link and perform bidirectional communication. When the second external audio electronic device 1330 satisfies the condition of the entity for changing the communication link in a state in which the first external audio electronic device 1310 establishes a third communication link with the second electronic device, the right of the third communication link established between the first external audio electronic device 1310 and the second electronic device can be transferred to the second external audio electronic device 1330.

[0328] In step 1313, the first external audio electronic device 1310 maintains and manages the second communication link established with the first electronic device.

[0329] In step 1315, the second external audio electronic device 1330 maintains and manages the third communication link established between the first external audio electronic device 1310 and the second electronic device based on the entity of the right of the third communication link given from the first external audio electronic device 1310. The second external audio electronic device 1330 maintains and manages the third communication link established between the first external audio electronic device 1310 and the second electronic device based on the entity of the right of the third communication link given from the first external audio electronic device 1310, and monitors the second communication link.

[0330] In step 1317, the second external audio electronic device 1330 receives a specific event from the second electronic device.

[0331] In step 1319, the second external audio electronic device 1330 processes the specific event while maintaining the entity of the right of the third communication link. When the specific event received from the second electronic device is not an event corresponding to a condition for withdrawing the right of the communication link, or when a condition for withdrawing the right is not configured in the event received from the second electronic device, the specific event can be processed while maintaining the entity of the right of the third communication link. When the specific event received from the second electronic device is not an event corresponding to a condition for withdrawing the right of the communication link, or when a condition for withdrawing the right is not configured in the event received from the second electronic device, identification can be performed according to the capability information of the first external audio electronic device 1310 and the second external audio electronic device 1330. For example, when a call is received from the second electronic device through the third communication link, or when a microphone is included in the second external audio electronic device 1330, the second external audio electronic device 1330 can process the received specific event while maintaining the entity of the right of the third communication link. When the first external audio electronic device 1310 does not monitor the third communication link, the second external audio electronic device 1330 can make a request for monitoring the third communication link to the first external audio electronic device 1310, and receive audio data corresponding to the specific event received from the second electronic device.

[0332] Figure 14A FIG. 1400a is a diagram illustrating a communication link management operation according to an embodiment. Figure 14B FIG. 1400b is a diagram illustrating a communication link management operation according to an embodiment. Figure 14C FIG. 1400c is a diagram illustrating a communication link management operation according to an embodiment.

[0333] Figures 14A to 14C The first external audio electronic device 1410 of FIG. 1400a can be implemented substantially the same as or similar to the first external audio electronic device 1310 of FIG. 1300, and the second external audio electronic device 1430 can be implemented substantially the same as or similar to the second external audio electronic device 1330 of FIG. 1300. Figure 5A The first external audio electronic device 551a of FIG. 1500 can be implemented substantially the same as or similar to the first external audio electronic device 1310 of FIG. 1300, and the second external audio electronic device 1430 can be implemented substantially the same as or similar to the second external audio electronic device 1330 of FIG. 1300. Figure 5A The second external audio electronic device 553a of FIG. 1500 can be implemented substantially the same as or similar to the second external audio electronic device 1330 of FIG. 1300.

[0334] Referring to FIG. 1600, Figure 14AA first external audio electronic device 1410 and a second external audio electronic device 1430 may establish a first communication link 1471 between them. The first external audio electronic device 1410 may establish a second communication link 1472 with a first electronic device 1450, and the second external audio electronic device 1430 may monitor, for example, the second communication link 1472 based on connection information related to the second communication link received from the first external audio electronic device 1410, as shown by reference numeral 1431. To maintain and manage the third communication link established between the first external audio electronic device 1410 and the second electronic device 1470 based on the allocation of rights to the communication link received from the first external audio electronic device 1410, the second external audio electronic device 1430 may send data to and receive data from the third electronic device 1470, as shown by reference numeral 1435, and the first external audio electronic device 1410 may monitor the third communication link, as shown by reference numeral 1411.

[0335] The first external audio electronic device 1410 can receive and output audio data related to the music being reproduced by the first electronic device 1450 through the second communication link 1472, and the second external audio electronic device 1430 can monitor the second communication link 1472, receive music-related audio data from the first electronic device 1450, and output audio data.

[0336] like Figure 14B As shown, while the first external audio electronic device 1410 and the second external audio electronic device 1430 receive and output music-related audio data from the first electronic device 1450, the second external audio electronic device 1430 can receive a call event corresponding to the conditions for withdrawing a right from the second electronic device 1470 via a third communication link, as shown by reference numeral 1435a. The second external audio electronic device 1430 can send a call reception notification and / or a request to withdraw the right to the third communication link to the first external audio electronic device 1410 via the first communication link 1471, as shown by reference numeral 1471a. The call event can be an event that requires the microphone in the first external audio electronic device 1410 to be included, and the second external audio electronic device 1430 can identify the call event as an event corresponding to the conditions for withdrawing a right. The first external audio electronic device 1410 can monitor the third communication link, and the second external audio electronic device 1430 can send only a message requesting the withdrawal of the right to the third communication link to the first external audio electronic device 1410 via the first communication link 1471.

[0337] like Figure 14CAs shown, the first external audio electronic device 1410 can withdraw the right of the third communication link 1435 based on the call reception notification received from the second external audio electronic device 1430 and / or the message making a request to withdraw the third communication link, stop outputting the music-related audio data received through the second communication link 1472 from the first electronic device 1450 as indicated by reference numeral 1471b, and process the call event received through the third communication link 1473 from the second electronic device 1470 as indicated by reference numeral 1473a. For example, the first external audio electronic device 1410 can receive the call-related audio data from the second electronic device 1470 and output the call-related audio data. The second external audio electronic device 1430 can monitor the third communication link 1473 as indicated by reference numeral 1435, receive the call-related audio data from the second electronic device 1470, and output the call-related audio data.

[0338] When the second external audio electronic device 1430 receives the call event through the third communication link from the second electronic device 1470, which does not correspond to the condition for withdrawing the right, the second external audio electronic device 1430 can maintain the right of the third communication link. For example, when the call event is an event requiring a microphone included in the second external audio electronic device 1430, the second external audio electronic device 1430 can maintain the right of the third communication link. The second external audio electronic device 1430 can stop outputting the music-related audio data received through the second communication link 1472 while maintaining the right of the third communication link. For example, through the first communication link 1471, the second external audio electronic device 1430 can make a request to stop outputting the music-related audio data transmitted through the second communication link 1472 to the first external audio electronic device 1430. The second external audio electronic device 1430 can process the call event received through the third communication link from the second electronic device 1470. For example, the second external audio electronic device 1430 can receive and output the call-related audio data. The first external audio electronic device 1430 can receive the call-related audio data from the second electronic device 1470 based on the monitoring 1411 of the third communication link and output the call-related audio data.

[0339] The first external audio electronic device 1410 can give the right of the third communication link to the second external audio electronic device 1430, and can not monitor the third communication link. When a call event corresponding to a condition for withdrawing the right is received from the second electronic device 1470 through the third communication link, the second external audio electronic device 1430 can transmit a message of making a request of withdrawing the right of the third communication link to the first external audio electronic device 1410 through the first communication link 1471. When a call event not corresponding to a condition for withdrawing the right is received from the second electronic device 1470 through the third communication link, the second external audio electronic device 1430 can transmit a message indicating call reception to the first external audio electronic device 1410 through the first communication link 1471, and maintain the right of the third communication link.

[0340] Figure 15 FIG. 1500 is a flowchart 1500 illustrating a communication link management operation according to an embodiment. Operations for providing the communication link management operation can include steps 1501 to 1523. According to an embodiment, at least one of steps 1501 to 1523 can be omitted, the order of some steps can be changed, or other steps can be added.

[0341] Reference Figure 15 In step 1501, a first external audio electronic device 1510 and a second external audio electronic device 1530 operating as a pair establish a first communication link between them.

[0342] In step 1503, the first external audio electronic device 1510 establishes a second communication link with a first electronic device 1550 through a communication circuit 210a.

[0343] In step 1507, the second external audio electronic device 1530 monitors the second communication link established between the first external audio electronic device 1510 and the first electronic device 1550.

[0344] The second external audio electronic device 1530 can receive connection information related to the second communication link established between the first external audio electronic device 1510 and the first electronic device 1550 from the first external audio electronic device 1510 through the first communication link. The second external audio electronic device 1530 can monitor the second communication link based on the received connection information related to the second communication link.

[0345] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address), clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (Clock Local) of a master device), channel information (e.g., a used channel map), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key) of each of the first external audio electronic device 1510 and the first electronic device 1550.

[0346] Based on the monitoring of the second communication link, data can be received from the first electronic device 1550.

[0347] In step 1509, the first external audio electronic device 1550 establishes a third communication link with the second electronic device 1570 through the communication circuit 310.

[0348] In step 1511, the first electronic device 1550 makes a request for information about the second external audio electronic device 1530 to the first external audio electronic device 1510 through the second communication link. The first electronic device 1550 can know the existence of the second external audio electronic device 1530 by receiving information about the second external audio electronic device 1530 that establishes a communication link with the first external audio electronic device 1510 from the first external audio electronic device 1510 during a connection process for establishing the second communication link with the first external audio electronic device 1510. When the first electronic device 1550 receives information about the second external audio electronic device 1530 that establishes a first communication link with the first external audio electronic device 1510 from the first external audio electronic device 1510 during a connection process for establishing the second communication link with the first external audio electronic device 1510 and pre-stores the information, step 1511 can be omitted.

[0349] In step 1513, the first external audio electronic device 1510 transmits information (e.g., address information) about the second external audio electronic device 1530 that establishes a first communication link to the first electronic device 1550 according to a request from the first electronic device 1550.

[0350] In step 1515, the first electronic device 1550 receives information about the second external audio electronic device 1530 from the first external audio electronic device 1510 and transmits the information about the second external audio electronic device 1530 and / or a message making a request for establishing a communication link with the second external audio electronic device 1530 to the second electronic device 1570 through the third communication link.

[0351] In step 1517, the second electronic device 1570 makes a request for connection for establishing a communication link to the second external audio electronic device 1530 based on information (e.g., address information) about the second external audio electronic device 1530.

[0352] In step 1519, the second electronic device 1570 and the second external audio electronic device 1530 are connected after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link, and establish a fourth communication link. For example, the second electronic device 1570 can establish the fourth communication link with the second external audio electronic device 1530 after a pairing operation and a connection operation with the second external audio electronic device 1530 via a query operation and a paging operation using a BT legacy protocol based on information (e.g., address information) about the second external audio electronic device 1530. For example, the second electronic device 1570 can establish the fourth communication link with the second external audio electronic device 1530 after a broadcast operation, a scan operation using a BLE protocol, and a connection operation with the second external audio electronic device 1530 based on information about the second external audio electronic device 1530.

[0353] In step 1523, the first external audio electronic device 1510 monitors the fourth communication link established between the second external audio electronic device 1530 and the second electronic device 1570.

[0354] The first external audio electronic device 1510 can receive connection information related to the fourth communication link established between the second external audio electronic device 1530 and the second electronic device 1570 from the second external audio electronic device 1530 through the first communication link, and monitor the fourth communication link based on the received connection information related to the fourth communication link.

[0355] The first external audio electronic device 1510 can receive data from the second electronic device 1570 based on the monitoring of the fourth communication link.

[0356] Although Figure 15 Although it is illustrated that the first external audio electronic device 1510 establishes a communication link with the first electronic device 1550 in a state in which the first external audio electronic device 1510 and the second external audio electronic device 1530 first establish a communication link therebetween, the first external audio electronic device 1510 can first establish a communication link with the first electronic device 1550, and then the first external audio electronic device 1510 and the second external audio electronic device 1530 can establish a communication link therebetween.

[0357] Figure 16is a flowchart 1600 illustrating communication link management of a first electronic device according to an embodiment. Operations for providing the communication link management operations can include steps 1601 through 1607. The communication link management operations can be performed by an electronic device or at least one processor of an electronic device. At least one of steps 1601 through 1607 can be omitted, the order of some steps can be changed, or other steps can be added.

[0358] In step 1601, the first electronic device establishes a second communication link with a first external audio electronic device configured as a master external audio electronic device among a pair of external audio electronic devices operating as a pair through the communication circuit 310. When the first electronic device establishes the second communication link with the first external audio electronic device, the first electronic device can maintain the second communication link while transmitting a connection identification message (e.g., a poll packet message) to the first external audio electronic device and receiving a connection identification response message (e.g., an empty packet message) from the first external audio electronic device through the second communication link.

[0359] In step 1603, the first electronic device establishes a third communication link with the second electronic device 1570 through the communication circuit 310.

[0360] In step 1605, the first electronic device makes a request to the first external audio electronic device for information (e.g., address information) about the second external audio electronic device 1570 and receives the information.

[0361] In step 1607, the first electronic device transmits, to the second electronic device, the information about the second external audio electronic device received from the first external audio electronic device and / or a message making a request to establish a communication link with the second external audio electronic device.

[0362] Figure 17 is a flowchart 1700 illustrating communication link management of a second electronic device according to an embodiment. Operations for providing the communication link management operations can include steps 1701 through 1707. The communication link management operations can be performed by an electronic device or at least one processor of an electronic device. At least one of steps 1701 through 1707 can be omitted, the order of some steps can be changed, or other steps can be added.

[0363] In step 1701, the second electronic device establishes a third communication link with the first electronic device 1550 through the communication circuit 310.

[0364] In step 1703, the second electronic device receives, from the first electronic device, information (e.g., address information) about the second external audio electronic device 1530 and / or a message making a request to establish a communication link with the second external audio electronic device.

[0365] In step 1705, the second electronic device makes a connection request for establishing a communication link to the second external audio electronic device based on the information about the second external audio electronic device received from the first electronic device.

[0366] In step 1707, after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link, the second electronic device can be connected to the second external audio electronic device 1530 and can establish a fourth communication link.

[0367] Figure 18 FIG. 1800 is a flowchart 1800 illustrating a communication link management operation of a first external audio electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 1801 to 1811. The communication link management operation can be performed by the first external audio electronic device or the processor 280a of the first external audio electronic device. At least one of steps 1801 to 1811 can be omitted, the order of some steps can be changed, or other steps can be added.

[0368] In step 1801, the first external audio electronic device establishes a first communication link with a second external audio electronic device 1530 through a communication circuit 210a. In an operation for establishing the first communication link, the first external audio electronic device can be configured as a master external audio electronic device, and the second external audio electronic device can be configured as a slave external audio electronic device. The first external audio electronic device can maintain and manage the first communication link while transmitting and receiving data to and from the second external audio electronic device.

[0369] In step 1803, the first external audio electronic device establishes a second communication link with a first electronic device 1550 through the communication circuit 210a. The first external audio electronic device can maintain and manage the second communication link while transmitting and receiving data to and from the first electronic device.

[0370] In step 1805, the first external audio electronic device transmits information for monitoring the second communication link to the second external audio electronic device 1530.

[0371] The first external audio electronic device can transmit connection information related to the second communication link established with the first electronic device to the second external audio electronic device 1530 through the first communication link and allow the second external audio electronic device to monitor the second communication link. The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address) of each of the first external audio electronic device and the electronic device, clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (Clock Local) of a master device), channel information (e.g., a channel map used), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key).

[0372] In step 1807, the first external audio electronic device transmits information about the second external audio electronic device to the first electronic device through the second communication link.

[0373] The second external audio electronic device can transmit information about the second external audio electronic device to the first electronic device according to a request from the first electronic device or without any request from the first electronic device.

[0374] In step 1809, the first external audio electronic device receives connection information related to a fourth communication link established between the second external audio electronic device and a second electronic device 1570 from the second external audio electronic device through the first communication link. The first external audio electronic device can monitor the fourth communication link based on the received connection information related to the fourth communication link.

[0375] In step 1811, the first external audio electronic device receives data from the second electronic device based on the monitoring of the fourth communication link.

[0376] Figure 19 FIG. 19 is a flowchart 1900 illustrating a communication link management operation of a second external audio electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 1901 to 1911. The communication link management operation can be performed by the second external audio electronic device. At least one of steps 1901 to 1911 can be omitted, the order of some steps can be changed, or other steps can be added.

[0377] In step 1901, the second external audio electronic device establishes a first communication link with a first external audio electronic device 1510 through a communication circuit. In an operation for establishing the first communication link, the first external audio electronic device can be configured as a master external audio electronic device, and the second external audio electronic device can be configured as a slave external audio electronic device.

[0378] In step 1903, the second external audio electronic device receives connection information related to the second communication link established between the first external audio electronic device and the first electronic device 1550 from the first external audio electronic device 1510 through the first communication link. The second external audio electronic device can monitor the second communication link established between the first external audio electronic device and the first electronic device 1550 based on the received connection information related to the second communication link.

[0379] In step 1905, the second external audio electronic device receives data from the first electronic device based on the monitoring of the second communication link.

[0380] In step 1907, the second external audio electronic device receives a connection request for establishing a fourth communication link from the second electronic device 1570.

[0381] In step 1909, after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link, the second external audio electronic device is connected to the second electronic device 1570 and establishes the fourth communication link.

[0382] In step 1911, the second external audio electronic device transmits information for monitoring the fourth communication link to the first external audio electronic device.

[0383] The second external audio electronic device can transmit connection information related to the fourth communication link to the first external audio electronic device through the first communication link, so as to allow the first external audio electronic device to monitor the fourth communication link.

[0384] Figure 20 FIG. 2000 is a flowchart 2000 illustrating a communication link management operation according to an embodiment. Operations for providing the communication link management operation can include steps 2001 to 2021. At least one of steps 2001 to 2021 can be omitted, the order of some steps can be changed, or other steps can be added.

[0385] Referring to Figure 20 In step 2001, a first external audio electronic device 2010 and a second external audio electronic device 2030 operating as a pair establish a first communication link between them.

[0386] In step 2003, the first external audio electronic device 2010 establishes a second communication link with a first electronic device 2050 through a communication circuit 210a.

[0387] In step 2007, the second external audio electronic device 2030 monitors the second communication link established between the first external audio electronic device 2010 and the first electronic device 2050.

[0388] The second external audio electronic device 2030 can receive connection information related to the second communication link established between the first external audio electronic device 2010 and the first electronic device 2050 from the first external audio electronic device 2010 through the first communication link, and monitor the second communication link based on the received connection information related to the second communication link.

[0389] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address), clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (Clock Local) of a master device), channel information (e.g., a used channel map), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key) of each of the first external audio electronic device 2010 and the first electronic device 2050.

[0390] The second external audio electronic device 2030 receives data from the first electronic device 2050 based on the monitoring of the second communication link.

[0391] In step 2009, the first electronic device 2050 establishes a third communication link with the second electronic device 2070 through the communication circuit 310.

[0392] In step 2011, when the first electronic device 2050 establishes the third communication link with the second electronic device 2070, the first electronic device 2050 transmits information (e.g., address information) about the second electronic device 2070, which establishes the third communication link, to the first external audio electronic device 1510 through the second communication link.

[0393] When receiving the information of the second electronic device 2070 from the first electronic device 2050, the first external audio electronic device 2010 can transmit the information about the second electronic device 2070 and / or a message making a request to establish a communication link with the second electronic device 2070 to the second external audio electronic device 2030 through the first communication link.

[0394] In step 2015, the second external audio electronic device 2030 makes a request for connection to establish a communication link to the second electronic device 2070 based on the information about the second electronic device 2070.

[0395] In step 2017, after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link, the second external audio electronic device 2030 and the second electronic device 2070 are connected and establish a fourth communication link.

[0396] For example, the second external audio electronic device 2030 can establish a fourth communication link with the second electronic device 2070 after a pairing operation and a connection operation with the second electronic device 2070 via a query operation and a paging operation using a BT legacy protocol based on information (e.g., address information) about the second electronic device 2070. Additionally or alternatively, the second external audio electronic device 2030 can establish the fourth communication link with the second electronic device 2070 after a broadcast operation, a scan operation, and a connection operation with the second electronic device 2070 using a BLE protocol based on information (e.g., address information) about the second electronic device 2070.

[0397] In step 2021, the first external audio electronic device 2010 monitors the fourth communication link established between the second external audio electronic device 2030 and the second electronic device 2070.

[0398] The first external audio electronic device 2030 can receive connection information related to the fourth communication link received from the second external audio electronic device 2030 through the first communication link, monitor the fourth communication link based on the received connection information related to the fourth communication link, and receive data from the second electronic device 2070.

[0399] Figure 21 FIG. 2100 is a flowchart 2100 illustrating a communication link management of a first electronic device according to an embodiment. Operations for providing a communication link management operation can include steps 2101 to 2105. The communication link management operation can be performed by an electronic device or at least one processor of an electronic device. At least one of steps 2101 to 2103 can be omitted, the order of some steps can be changed, or other steps can be added.

[0400] In step 2101, the first electronic device establishes a second communication link with a first external audio electronic device configured as a master external audio electronic device among a pair of external audio electronic devices operating as a pair through the communication circuit 310. When the first electronic device establishes the second communication link with the first external audio electronic device, the first electronic device can maintain the second communication link while transmitting a connection identification message (e.g., a poll packet message) to the first external audio electronic device and receiving a connection identification response message (e.g., an empty packet message) from the first external audio electronic device through the second communication link.

[0401] In step 2103, the first electronic device establishes a third communication link with the second electronic device 2070 through the communication circuit 310.

[0402] In step 2105, the first electronic device transmits information (e.g., address information) about the second electronic device establishing the third communication link to the first external audio electronic device through the second communication link.

[0403] Figure 22 FIG. 2200 is a flowchart 2200 illustrating a communication link management operation of a second electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 2201 through 2205. The communication link management operation can be performed by the electronic device or at least one processor of the electronic device. According to an embodiment, at least one of steps 2201 through 2205 can be omitted, the order of some steps can be changed, or other steps can be added.

[0404] In step 2201, the second electronic device establishes a third communication link with the first electronic device 2050 through the communication circuit 310.

[0405] In step 2203, the second electronic device receives a connection request for establishing a communication link from the second external audio electronic device.

[0406] In step 2205, the second electronic device is connected after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link with the second external audio electronic device, and can establish a fourth communication link.

[0407] Figure 23 FIG. 2300 is a flowchart 2300 illustrating a communication link management operation of a first external audio electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 2301 through 2313. The communication link management operation can be performed by the first external audio electronic device or the processor 280a of the first external audio electronic device. At least one of steps 2301 through 2313 can be omitted, the order of some steps can be changed, or other steps can be added.

[0408] In step 2301, the first external audio electronic device establishes a first communication link with a second external audio electronic device through the communication circuit 210a. In operations for establishing the first communication link, the first external audio electronic device can be configured as a master external audio electronic device, and the second external audio electronic device can be configured as a slave external audio electronic device. The first external audio electronic device can maintain and manage the first communication link while transmitting and receiving data to and from the second external audio electronic device.

[0409] In step 2303, the first external audio electronic device establishes a second communication link with the first electronic device 2050 through the communication circuit 210a. The first external audio electronic device can maintain and manage the second communication link while transmitting and receiving data to and from the first electronic device.

[0410] In step 2305, the first external audio electronic device transmits information for monitoring the second communication link to the second external audio electronic device 2030.

[0411] The first external audio electronic device can transmit connection information related to the second communication link established with the first electronic device to the second external audio electronic device 2030 through the first communication link, and allow the second external audio electronic device to monitor the second communication link.

[0412] The communication link-related connection information for monitoring the communication link can include at least one of address information (e.g., at least one of a Bluetooth address or an LT address) of each of the first external audio electronic device and the first electronic device, clock information (e.g., at least one of a Bluetooth piconet clock or a CLKN (Clock Local) of a master device), channel information (e.g., a channel map used), SDP result information, supported feature information, manufacturing data, or key information (e.g., a link key).

[0413] In step 2307, the first external audio electronic device receives information (e.g., address information) about a second electronic device with which the first electronic device establishes a third communication link from the first electronic device through the second communication link.

[0414] In step 2309, the first external audio electronic device receives information 2070 about the second electronic device from the first electronic device, and transmits information about the second electronic device and / or a message making a request to establish a communication link with the second electronic device to the second external audio electronic device through the first communication link.

[0415] In step 2311, the first external audio electronic device receives connection information related to a fourth communication link established between the second external audio electronic device and the second electronic device from the second external audio electronic device through the first communication link. The first external audio electronic device can monitor the fourth communication link established between the second external audio electronic device and the second electronic device based on the received connection information related to the fourth communication link.

[0416] In step 2313, the first external audio electronic device receives data from the second electronic device based on the monitoring of the fourth communication link.

[0417] Figure 24 FIG. 2400 is a flowchart 2400 illustrating a communication link management operation of a second external audio electronic device according to an embodiment. Operations for providing the communication link management operation can include steps 2401 to 2413. The communication link management operation can be performed by the second external audio electronic device. At least one of steps 2401 to 2413 can be omitted, the order of some steps can be changed, or other steps can be added.

[0418] In step 2401, the second external audio electronic device establishes a first communication link with the first external audio electronic device 2010 through the communication circuit 210b. In operations for establishing the first communication link, the first external audio electronic device can be configured as a master external audio electronic device, and the second external audio electronic device can be configured as a slave external audio electronic device. The first external audio electronic device can maintain and manage the first communication link while transmitting data to and receiving data from the second external audio electronic device.

[0419] In step 2403, the second external audio electronic device receives connection information related to a second communication link established between the first external audio electronic device and the first electronic device 2050 from the first external audio electronic device through the first communication link. The second external audio electronic device can monitor the second communication link established between the first external audio electronic device and the first electronic device based on the received connection information related to the second communication link.

[0420] In step 2405, the second external audio electronic device receives data from the first electronic device based on the monitoring of the second communication link.

[0421] In step 2407, the second external audio electronic device receives information (e.g., address information) about the second electronic device 1570 through the first communication link and / or a message making a request to establish a communication link with the second electronic device.

[0422] In step 2409, the second external audio electronic device makes a request for a communication link to the second electronic device based on the information about the second electronic device received from the first external audio electronic device.

[0423] In step 2411, after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link with the second electronic device, the second external audio electronic device is connected and establishes a fourth communication link.

[0424] In step 2413, the second external audio electronic device transmits information for monitoring the fourth communication link to the first external audio electronic device through the first communication link. The second external audio electronic device can transmit connection information related to the fourth communication link to the first external audio electronic device to allow the first external audio electronic device to monitor the fourth communication link.

[0425] Figure 25A FIG. 2500a is a diagram illustrating a communication link management operation according to an embodiment. Figure 25B FIG. 1400b is a diagram illustrating a communication link management operation according to an embodiment. Figure 25CFIG. 1400c is a diagram 1400c illustrating a communication link management operation according to an embodiment.

[0426] Figures 25A to 25C The first external audio electronic device 2510 of FIG. 25A can be implemented substantially the same as or similar to the first external audio electronic device 2510 of FIG. 25B, and the second external audio electronic device 2530 can be implemented substantially the same as or similar to the second external audio electronic device 2530 of FIG. 25B. Figure 5B The first external audio electronic device 551b of FIG. 55A can be implemented substantially the same as or similar to the first external audio electronic device 551b of FIG. 55B, and the second external audio electronic device 553b can be implemented substantially the same as or similar to the second external audio electronic device 553b of FIG. 55B. Figure 5B

[0427] Referring to FIG. 25A, Figure 25A The first external audio electronic device 2510 configured as a master external audio electronic device can establish a first communication link 2571 with the second external audio electronic device 2530 configured as a slave external audio electronic device, and the first external audio electronic device 2510 as an entity having a right of the first communication link 2571 can maintain and manage the first communication link while transmitting and receiving data to and from the second external audio electronic device 2530 through the first communication link 2571. The first external audio electronic device 2510 can establish a second communication link 2572 with the first electronic device 2550, and transmit connection information related to the second communication link established with the first electronic device 2550 to the second external audio electronic device 2530 through the first communication link 2571. The second external audio electronic device 2530 can monitor the second communication link 2572 as indicated by reference numeral 2531. The second external audio electronic device 2530 can monitor the second communication link 2572 based on the connection information related to the second communication link received from the first external audio electronic device 2510 as indicated by reference numeral 2531.

[0428] ​The first electronic device 2550 can establish a third communication link 2573 with the second electronic device 2570. For example, the first external audio electronic device 2510 and the second external audio electronic device 2530 establish the first communication link, and the first electronic device 2550 can establish the third communication link 2573 with the second electronic device 2570 while the first external audio electronic device 2510 establishes the second communication link 2572 with the first electronic device 2550. Additionally or alternatively, the first electronic device 2550 can first establish the third communication link 2573 with the second electronic device 2570, and then establish the second communication link 2572 with the first external audio electronic device 2510. The first electronic device 2550 can transmit, to the second electronic device 2570, information (e.g., address information) about the second external audio electronic device 2530 received after making a request for information (e.g., address information) about the second external audio electronic device 2530 to the first external audio electronic device 2510 and / or a message making a request to establish a communication link with the second external audio electronic device 2530, as indicated by reference numeral 2501a. The second electronic device 2570 can make a request for connection to establish a communication link to the second external audio electronic device 2530 based on the information about the second external audio electronic device received from the first electronic device 2550, as indicated by reference numeral 2503b. The second electronic device 2570 and the second external audio electronic device 2530 can be connected after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link, and can establish a fourth communication link 2574. The second external audio electronic device 2530 can transmit information related to the fourth communication link established with the second electronic device 2570 to the first external audio electronic device 2510 through the first communication link 2571. The first external audio electronic device 2510 can monitor the fourth communication link, as indicated by reference numeral 2511. The first external audio electronic device 2510 can monitor the fourth communication link based on the information related to the fourth communication link received from the second external audio electronic device 2530, as indicated by reference numeral 2511.

[0429] As Figure 25C indicated, the first electronic device 2550 can establish a third communication link 2573 with the second electronic device 2570. For example, the first external audio electronic device 2510 and the second external audio electronic device 2530 establish the first communication link, and the first electronic device 2550 can establish the third communication link 2573 with the second electronic device 2570 while the first external audio electronic device 2510 establishes the second communication link 2572 with the first electronic device 2550. Additionally or alternatively, the first electronic device 2550 can first establish the third communication link 2573 with the second electronic device 2570, and then establish the second communication link 2572 with the first external audio electronic device 2510.

[0430] When the third communication link 2573 with the second electronic device 2570 is established, the first electronic device 2550 can transmit information (e.g., address information) about the second electronic device 2570 to the first external audio electronic device 2510 through the second communication link 2572, as indicated by reference numeral 2501b. The first external audio electronic device 2510 can receive the information about the second electronic device 2570 from the first electronic device 2550, and transmit the information about the second electronic device 2570 and / or a message making a request to establish a communication link with the second electronic device to the second external audio electronic device 2530 through the first communication link 2571, as indicated by reference numeral 2503b. The second external audio electronic device 2530 can make a request to establish a connection for a communication link to the second electronic device 2570 based on the information about the second electronic device 2570 received from the first external audio electronic device 2510, as indicated by reference numeral 2505b. The second external audio electronic device 2530 and the second electronic device 2570 can be connected after performing a connection procedure (e.g., a paging operation and a pairing operation) for establishing a communication link, and can establish a fourth communication link 2574. The second external audio electronic device 2530 can transmit information related to the fourth communication link established with the second electronic device 2570 to the first external audio electronic device 2510 through the first communication link 2571. The first external audio electronic device 2510 can monitor the fourth communication link 2574, as indicated by reference numeral 2511. The first external audio electronic device 2510 can monitor the fourth communication link 2574 based on the information related to the fourth communication link received from the second external audio electronic device 2530, as indicated by reference numeral 2511.

[0431] Figure 26 FIG. 2600 is a diagram illustrating a communication link management operation according to an embodiment.

[0432] Referring to Figure 26 The master earbud 2610 (e.g., a first external audio electronic device) and the sub earbud 2630 (e.g., a second external audio electronic device) can establish a first communication link 2671. In a state in which the smart phone 2650 (e.g., a first electronic device) establishes a second communication link 2672 with the master earbud 2610 (e.g., a first external audio electronic device) that performs a master function among the earbud pair, the smart phone 2650 and the watch phone 2670 (or a wearable device) (e.g., a second electronic device) can establish a third communication link 2673 therebetween. The sub earbud 2630 can receive information (e.g., address information) about the watch phone 2670 from the master earbud 2610.

[0433] The watch phone 2670 can receive information about the sub earbud 2630 from the smart phone 2650. The watch phone 2670 and the sub earbud 2630 (e.g., a second external audio electronic device) can establish a fourth communication link 2674 between them through a request from the watch phone 2670 receiving information about the sub earbud 2630 or from the sub earbud 2630 receiving information about the watch phone 2670. Thereafter, when the user reproduces music through the smart phone 2650, the main earbud 2610 can receive music-related audio data through the second communication link 2672, the sub earbud 2630 monitoring the second communication link 2672 can receive the music-related audio data, and the main earbud 2610 and the sub earbud 2630 can synchronize and output the music. Alternatively, when the user reproduces music through the watch phone 2670, the sub earbud 2630 can receive music-related audio data through the fourth communication link 2674, the main earbud 2610 monitoring the fourth communication link 2674 can receive the music-related audio data, and the main earbud 2610 and the sub earbud 2630 can synchronize and output the music.

[0434] Figure 27A FIG. 2700a is a diagram illustrating a communication link management operation according to an embodiment. Figure 27B FIG. 2700b is a diagram illustrating a communication link management operation according to an embodiment.

[0435] Referring to FIG. 27, Figure 27A The main earbud 2710 (e.g., a first external audio electronic device) and the sub earbud 2730 (e.g., a second external audio electronic device) can establish a first communication link 2771. The smart phone 2750 (e.g., a first electronic device) can establish a second communication link 2772 with the main earbud 2710 (e.g., a first external audio electronic device), and the smart phone 2750 and the watch phone (or wearable device) 2770 (e.g., a second electronic device) can establish a third communication link 2773. The watch phone 2770 can establish a fourth communication link 2774 with the sub earbud 2730 based on information (e.g., address information) about the sub earbud 2730 (e.g., a second external audio electronic device) from the smart phone 2750 through the third communication link. Alternatively, the sub earbud 2730 can establish the fourth communication link 2774 with the watch phone 2770 based on information about the watch phone 2770 received from the main earbud 2710 through the first communication link.

[0436] The smart phone 2750 can receive information about the sub earbud 2730 from the master earbud 2710 through the second communication link 2772, the watch phone 2770 can receive information about the master earbud 2710 through the fourth communication link 2774, and each of the smart phone 2750 and the watch phone 2770 can display the received information. For example, the smart phone 2750 and the watch phone 2770 can have the same name (a1) configured in the earbud pair 2710 and 2730 and displayed thereon.

[0437] Referring to Figure 27B The master earbud 2710 (e.g., a first external audio electronic device) and the sub earbud 2730 (e.g., a second external audio electronic device) can establish a first communication link 2771. The smart phone 2750 (e.g., a first electronic device) can establish a second communication link 2772 with the master earbud 2710 (e.g., a first external audio electronic device), and the smart phone 2750 can establish a third communication link 2773 with the watch phone 2770. The watch phone 2770 (e.g., a second electronic device) can establish a fourth communication link 2774 with the sub earbud 2730 based on information (e.g., address information) about the sub earbud 2730 (e.g., a second external audio electronic device) from the smart phone 2750 through the third communication link. Alternatively, the sub earbud 2730 can establish the fourth communication link 2774 with the watch phone 2770 based on information about the watch phone 2770 received from the master earbud 2710 through the first communication link.

[0438] The smart phone 2750 can receive information about the sub earbud 2730 from the master earbud 2710 through the second communication link 2772, the watch phone 2770 can receive information about the master earbud 2710 through the fourth communication link 2774, and the smart phone 2750 and the watch phone 2770 can display different information. For example, the smart phone 2750 can display information b1 indicating that the master earbud is L to establish the second communication link 2772, and the watch phone 2770 can display information b2 indicating that the sub earbud is R to establish the fourth communication link 2774.

[0439] According to an embodiment, a method of managing a communication link of an audio electronic device can include an operation of establishing a first communication link with an external audio electronic device through a communication circuit of the audio electronic device; an operation of receiving data from a first external electronic device through monitoring a second communication link established between the external audio electronic device and the first external electronic device; and an operation of managing and / or maintaining a third communication link established between the external audio electronic device and a second external electronic device and transmitting and receiving data to and from the second external electronic device when a right of the third communication link is given from the external audio electronic device.

[0440] The method can further include configuring the external audio electronic device to function as a master audio electronic device of the master device and configuring the audio electronic device to function as a slave audio electronic device of the slave device when the first communication link is established.

[0441] The operation of monitoring the second communication link can include monitoring the operation of the second communication link based on information related to connection of the second communication link received from the external audio electronic device.

[0442] The operation of managing and / or maintaining the third communication link can include receiving a request for changing the entity of the third communication link from the external audio electronic device when the audio electronic device satisfies a condition for changing the entity of the third communication link, and managing and / or maintaining the third communication link.

[0443] The condition for changing the entity of the communication link can include at least one of communication quality information, state information of the audio electronic device and / or the external audio electronic device, a connection state of communication with a plurality of external electronic devices, or a user selection.

[0444] The method can further include returning the right of the third communication link to the external audio electronic device when the audio electronic device operating as the entity of the third communication link does not satisfy the condition for changing the entity of the third communication link, monitoring the third communication link, and receiving data from the second external electronic device.

[0445] The method can further include returning the right of the third communication link to the external audio electronic device when a specific event is received from the second external electronic device and a condition for processing the specific event is not satisfied, monitoring the third communication link, and receiving data from the second external electronic device.

[0446] The method can further include allowing the audio electronic device to maintain the right of the third communication link and process the specific event when the specific event is received from the second external electronic device and a condition for processing the specific event is satisfied.

[0447] The method can further include the operations of transmitting and receiving a packet message for maintaining the third communication link to and from the second external electronic device through the third communication link.

[0448] The method can further include the operation of transmitting a response message indicating whether data transmitted from the second external electronic device through the third communication link is normally received to the second external electronic device.

[0449] The method can further include the operations of notifying the external audio electronic device of the reception of the data through the third communication link through the first communication link when the external audio electronic device does not monitor the third communication link and the data is received from the second external electronic device through the third communication link.

[0450] The method can further include the operations of returning the right of the third communication link to the external audio electronic device when the right of the third communication link is withdrawn from the external audio electronic device and the right of the second communication link is given while the third communication link is managed and / or maintained, monitoring the third communication link to receive data from the second external electronic device, managing and / or maintaining the second communication link, and transmitting and receiving data to and from the first external electronic device.

[0451] The method can further include the operations of managing and / or maintaining the third communication link and managing and / or maintaining the second communication link when the right of the second communication link is given from the external audio electronic device while the third communication link is managed and / or maintained.

[0452] According to an embodiment, a method of managing a communication link of an audio electronic device can include the operations of establishing a first communication link with an external audio electronic device through a communication circuit of the external audio electronic device, establishing a second communication link with a first external electronic device and transmitting information related to a second communication link connection associated with the second communication link to the external audio electronic device through the first communication link, establishing a third communication link with a second external electronic device and transmitting information related to a third communication link connection associated with the third communication link to the external audio electronic device through the first communication link, receiving information about the external audio electronic device through the first communication link and determining whether to give a right of the second communication link based on the received information, and giving the right of the second communication link to the external audio electronic device and monitoring the second communication link based on the identification.

[0453] The operation of determining whether to give the right of the second communication link can further include the operation of giving the right of the second communication link to the external audio electronic device when the information about the external audio electronic device matches a condition of an entity for changing the right of the second communication link.

[0454] According to an embodiment, a method of managing a communication link of an electronic device can include the operations of establishing a first communication link with an external electronic device through a communication circuit of the electronic device, receiving information about an audio electronic device from the external electronic device through the first communication link, and establishing a second communication link with the audio electronic device based on the received information about the audio electronic device.

[0455] The information about the audio electronic device can include address information of the audio electronic device.

[0456] According to an embodiment, a method of managing a communication link of an audio electronic device can include an operation of establishing a first communication link with an external audio electronic device through a communication circuit of the audio electronic device, an operation of monitoring a second communication link established between the external audio electronic device and a first external electronic device and receiving data from the first external electronic device through the first communication link from the external audio electronic device, an operation of receiving information about a second external electronic device establishing a third communication link with the first external electronic device through the first communication link, and an operation of establishing a fourth communication link with the second external electronic device based on the received information about the second external electronic device.

[0457] The operation of monitoring the second communication link can include an operation of receiving connection information related to the second communication link from the external audio electronic device, and an operation of monitoring the second communication link based on the received connection information related to the second communication link.

[0458] According to various embodiments, the method can further include an operation of transmitting connection information related to the fourth communication link to the external audio electronic device through the first communication link.

[0459] An electronic device according to various embodiments can be one of various types of electronic devices. The electronic devices can include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. According to an embodiment of the disclosure, the electronic devices are not limited to those described above.

[0460] It should be understood that various embodiments of the present disclosure and the terms used therein are not intended to limit technically described features to particular embodiments and include various changes, equivalents, or replacements for a corresponding embodiment. With regard to the description of the drawings, like reference numerals can be used to refer to like or similar elements. It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. As used herein, each of the phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B, or C," "at least one of A, B, and C," and "at least one of A, B, or C" can include all possible combinations of the items listed in the corresponding one of the phrases. As used herein, terms such as "1st" and "2nd," or "first" and "second" can be used to simply distinguish a corresponding component from another, and do not limit the components in other aspects (e.g., importance or order). It will be understood that if an element (for example, a first element) is referred to as being "operatively or communicatively connected" to or with another element (for example, a second element), it means that the element is connected to the other element directly (for example, wiredly), wirelessly, via a third element, or a combination thereof.

[0461] As used herein, the term "module" can include a unit implemented in hardware, software, or firmware, and can interchangeably be used with other terms, for example, "logic," "logic block," "part," or "circuitry." The module can be a single integral component, or a minimum unit or part thereof, adapted to perform one or more functions. For example, the module can be implemented in a form of an application-specific integrated circuit (ASIC).

[0462] Various embodiments as set forth herein can be implemented as software (e.g., the program 140) including one or more instructions that are stored in a storage medium (e.g., internal memory 136 or external memory 138) that are readable by a machine (e.g., electronic device 101). For example, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) can invoke at least one of the one or more instructions stored in the storage medium, and execute it, with or without using one or more other components under the control of the processor. This allows the machine to be operated as a special purpose machine to perform at least one function. The one or more instructions can include a code generated by a compiler or a code that forms at least a part of a language as provided in a high-level programming language. The machine-readable storage medium can be provided in the form of a non-transitory storage medium. Here, the term "non-transitory" simply means that the storage medium is tangible, and does not include a signal (e.g., an electromagnetic wave), but this term does not differentiate between where data is semi-permanently stored in the storage medium and where the data is temporarily stored in the storage medium.

[0463] According to an embodiment, a method according to various embodiments of the disclosure can be included and provided in a computer program product. The computer program product can be traded as a product between a seller and a buyer. The computer program product can be distributed in the form of a machine-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or be distributed online via an application store (e.g., Google Play Store TM ). If the computer program product is distributed online, at least part of it can be temporarily stored or temporarily generated in the storage medium such as a manufacturer's server, an application store's server, or a relay server.

[0464] According to various embodiments, each component (e.g., a module or a program) of the above-described components can include a single entity or multiple entities. According to various embodiments, one or more of the above-described components can be omitted, or one or more other components can be added. Alternatively or additionally, a plurality of components (e.g., modules or programs) can be integrated into a single component. In such a case, according to various embodiments, the integrated component can still perform one or more functions of each of the plurality of components in the same or similar manner as when the plurality of components performs the one or more functions.

[0465] A storage medium storing instructions is provided. The instructions can be configured to cause at least one processor, when executed by the at least one processor, to perform at least one operation. The at least one operation can include an operation of establishing, by a communication circuit, a first communication link with an external audio electronic device; an operation of monitoring a second communication link established between the external audio electronic device and a first external electronic device and receiving data from the first external electronic device; and an operation of, when given a right to establish a third communication link between the external audio electronic device and a second external electronic device from the external audio electronic device, managing and / or maintaining the third communication link and transmitting and receiving data to and from the second external electronic device.

[0466] Embodiments of the disclosure provide only specific examples to help describe the technology according to the embodiments of the disclosure, and do not limit the scope of the embodiments of the disclosure. Therefore, the scope of various embodiments of the disclosure should be interpreted to include all modifications or modified forms derived from the technical idea of the various embodiments of the disclosure.

[0467] While the present application has been particularly shown and described with reference to certain embodiments thereof, it will be understood by one of ordinary skill in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application as defined by the following claims and their equivalents.

Claims

1. An audio electronic device, comprising: First audio electronic device; and Second audio electronic device, The first audio electronic device and the second audio electronic device are configured as follows: A first communication link is established between the first audio electronic device and the second audio electronic device by the first audio electronic device; A second communication link is established between the first audio electronic device and the first external electronic device by the first audio electronic device; The first audio electronic device sends a message to the first external electronic device for managing and / or maintaining the second communication link; The second audio electronic device monitors the second communication link to receive data from the first external electronic device; A third communication link is established between the first audio electronic device and the second external electronic device by the first audio electronic device; The first audio electronic device sends messages to the second external electronic device for managing and / or maintaining the third communication link; and The third communication link is monitored by the second audio electronic device to receive data from the second external electronic device; Specifically, based on the fulfillment of predetermined conditions after the first audio electronic device establishes the second communication link and the third communication link, while the first audio electronic device is configured to send a message to the first external electronic device for managing and / or maintaining the second communication link and the second audio electronic device is configured to monitor the second communication link to receive data from the first external electronic device, the second audio electronic device is also configured to send a message to the second external electronic device for managing and / or maintaining the third communication link, and the first audio electronic device is configured to monitor the third communication link to receive data from the second external electronic device.

2. The audio electronic device according to claim 1, wherein, The second audio electronic device is configured to monitor the second communication link based on information received from the first audio electronic device regarding the second communication link.

3. The audio electronic device according to claim 1, wherein, The second audio electronic device is configured to receive from the first audio electronic device a request from an entity for changing the rights of the third communication link, and to manage and / or maintain the third communication link. The predetermined conditions include at least one of the following: communication quality information of the second audio electronic device or the first audio electronic device, status information of the second audio electronic device or the first audio electronic device, connection status of communication with multiple external electronic devices, or user selection.

4. The audio electronic device according to claim 1, wherein, When the second audio electronic device, which operates as the entity that holds the rights to the third communication link, fails to meet the predetermined conditions, the second audio electronic device is configured to return the rights to the third communication link to the first audio electronic device, monitor the third communication link, and receive data from the second external electronic device.

5. The audio electronic device according to claim 1, wherein, When information about a specific event is received from the second external electronic device and the conditions for processing the specific event are not met, the second audio electronic device is configured to return the right of the third communication link to the first audio electronic device, monitor the third communication link, and receive data from the second external electronic device. Specifically, when information about a specific event is received from the second external electronic device and the conditions for processing the specific event are met, the second audio electronic device is configured to maintain the right of the third communication link and process the specific event.

6. The audio electronic device according to claim 1, wherein, The second audio electronic device is configured to send to and receive from the second external electronic device via the third communication link packet messages for maintaining the third communication link.

7. The audio electronic device according to claim 1, wherein, The second audio electronic device is configured to send a response message to the second external electronic device indicating whether data sent from the second external electronic device via the third communication link has been received normally.

8. The audio electronic device according to claim 1, wherein, When the first audio electronic device is not monitoring the third communication link and receives data from the second external electronic device through the third communication link, the second audio electronic device is configured to notify the first audio electronic device through the first communication link that the data has been received through the third communication link.

9. The audio electronic device according to claim 1, wherein, When the right to the third communication link is withdrawn from the first audio electronic device while the right to the second communication link is granted, the second audio electronic device is configured to return the right to the third communication link to the first audio electronic device, monitor the third communication link to receive data from the second external electronic device, manage and / or maintain the second communication link, send data to the first external electronic device, and receive data from the first external electronic device.

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