Electronic device and operation method thereof

Abstract

According to one embodiment, an electronic device may comprise: a connector; a battery to be charged on the basis of charging power provided from a charging case through the connector; a communication circuit for supporting communication with an external device; at least one processor; and a memory for storing instructions. When executed by the at least one processor, the instructions can instruct the electronic device to: identify, on the basis of a user input related to a button of the charging case, an input voltage provided from the charging case through the connector; charge the battery according to the input voltage on the basis of the input voltage satisfying a charging criterion; determine pairing on the basis that the pattern of the input voltage corresponds to a reference pattern for a reference amount of time; and perform a pairing operation with a first external device through the communication circuit on the basis of the determination of the pairing. Other various embodiments are also possible.

Description

Electronic device and method of operation thereof

[0001] The present disclosure relates to an electronic device performing a pairing operation with an external device and an operating method thereof, according to one embodiment.

[0002] Recently, along with electronic devices such as smartphones, the use of wearable devices (e.g., wireless earphones) has been increasing. Wearable devices (e.g., wireless earphones) can be charged by being placed in a charging case (e.g., a cradle). The wearable devices can be charged by contacting the connector (e.g., a terminal) of the charging case. Wearable devices (e.g., wireless earphones) require pairing with electronic devices such as smartphones. Through pairing, the wearable device (e.g., wireless earphones) and the electronic device, such as a smartphone, can establish a communication connection.

[0003] According to one embodiment, an electronic device may include a connector, a battery configured to be charged based on charging power provided from a charging case through the connector, a communication circuit configured to support communication with an external device, at least one processor, and a memory storing instructions. The instructions, when executed by the at least one processor, may cause the electronic device to determine an input voltage provided from the charging case through the connector based on a user input associated with a button of the charging case. The instructions, when executed by the at least one processor, may cause the electronic device to charge the battery based on the input voltage, based on the input voltage satisfying a charging criterion. The instructions, when executed by the at least one processor, may cause the electronic device to determine pairing based on a pattern of the input voltage corresponding to a reference pattern for a reference time. The instructions, when executed by the at least one processor, may cause the electronic device to perform a pairing operation with a first external device through the communication circuit based on the determination of the pairing.

[0004] According to one embodiment, a method of operating an electronic device may include an operation of checking an input voltage provided from a charging case through a connector of the charging case based on a user input associated with a button of the charging case. The method may include an operation of charging a battery of the electronic device based on the input voltage, based on whether the input voltage satisfies a charging criterion. The method may include an operation of determining pairing based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time. The method may include an operation of performing a pairing operation with a first external device through a communication circuit of the electronic device based on the determination of the pairing.

[0005] According to one embodiment, a non-transitory computer-readable recording medium storing instructions may cause the instructions, when executed by at least one processor of an electronic device, to cause the electronic device to perform at least one operation. The at least one operation may include: checking an input voltage provided from a charging case through a connector of the charging case based on a user input associated with a button of the charging case. The at least one operation may include charging a battery of the electronic device based on the input voltage based on whether the input voltage satisfies a charging criterion. The at least one operation may include determining pairing based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time. The at least one operation may include performing a pairing operation with a first external device through a communication circuit of the electronic device based on the determination of the pairing.

[0006] FIG. 1 is a block diagram of devices included in a system according to one embodiment.

[0007] FIG. 2 is a block diagram of devices included in a system according to one embodiment.

[0008] FIG. 3 is a drawing of a charging case and an electronic device according to one embodiment.

[0009] FIG. 4 is a flowchart of a method of operating an electronic device according to one embodiment.

[0010] FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0011] FIG. 6 is a flowchart of a method of operating an electronic device according to one embodiment.

[0012] FIG. 7 is a flowchart of a method of operating an electronic device according to one embodiment.

[0013] FIG. 8 is a flowchart of a method of operating an electronic device according to one embodiment.

[0014] FIG. 9 is a flowchart of a method of operating an electronic device according to one embodiment.

[0015] FIG. 10 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0016] FIG. 11 is a flowchart of a method of operating an electronic device according to one embodiment.

[0017] FIG. 12 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0018] FIG. 13 is a flowchart of a method of operating an electronic device according to one embodiment.

[0019] FIG. 14 is a drawing illustrating the operation of an electronic device according to one embodiment.

[0020] FIG. 15 is a flowchart of a method of operating an electronic device according to one embodiment.

[0021] FIG. 16 is a flowchart of a method of operating an electronic device according to one embodiment.

[0022] FIG. 17 is a flowchart of a method of operating an electronic device according to one embodiment.

[0023] FIG. 18 is a flowchart of a method of operating an electronic device according to one embodiment.

[0024] FIG. 19 is a flowchart of a method of operating an electronic device according to one embodiment.

[0025] FIG. 20 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0026] FIG. 1 is a block diagram of devices included in a system according to one embodiment. FIG. 2 is a block diagram of devices included in a system according to one embodiment. FIG. 3 is a diagram of a charging case and an electronic device according to one embodiment.

[0027] With reference to FIGS. 1, 2, and 3, the devices included in the system can be described.

[0028] Referring to FIG. 1, a system according to one embodiment may include an electronic device (100) and a charging case (130). The charging case (130) may be a device for charging the electronic device (100). The electronic device (100) may receive power from the charging case (130) through a connector (e.g., 101). The charging case (130) may provide power to the electronic device (100) through a connector (e.g., 134).

[0029] Referring to FIG. 2, according to one embodiment, the electronic device (100) may include a first device (e.g., a first wearable device (210)) and a second device (e.g., a second wearable device (220)). For example, referring to FIG. 3, the electronic device (100) may be wireless earphones worn on a user's ears (e.g., the first wearable device (210) and the second wearable device (220)). For example, the first wearable device (210) may be worn on one ear of the user, and the second wearable device (220) may be worn on the other ear of the user. A description of the electronic device (100) may be a description of the first wearable device (210) and / or the second wearable device (220). For example, the operation of the electronic device (100) may be the operation of the first wearable device (210) and the second wearable device (220). For example, the operation of the electronic device (100) may be the operation of the first wearable device (210). For example, the operation of the electronic device (100) may be the operation of the second wearable device (220). Unlike the embodiment of FIG. 2, those skilled in the art will understand that the electronic device (100) may be one device or may include three or more devices. Those skilled in the art will understand that the electronic device (100) may not be a wearable device.

[0030] According to one embodiment, the charging case (130) may include a main body (132) and a cover (131). Referring to FIG. 3, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may be inserted into the charging case (130) (e.g., the main body (132)), or may be separated from the charging case (130). For example, only the first wearable device (210) may be inserted into the charging case (130), only the second wearable device (220) may be inserted into the charging case (130), or both the first wearable device (210) and the second wearable device (220) may be inserted into the charging case (130). The cover (131) of the charging case (130) can be closed or opened when the electronic device (100) is inserted or removed.

[0031] According to one embodiment, the charging case (130) may include a battery (137), a button (136), a power management integrated circuitry (PMIC) (135), and a connector (134) (e.g., a terminal). The button (136) may be a physical button, but there is no limitation on how the button (136) is implemented, and for example, the button (136) may be implemented in software. The connector (134) may be electrically connected to a connector (e.g., 101) of the electronic device (100). There is no limitation on how the connector (134) is implemented. For example, the connector (134) (e.g., a terminal) of the charging case (130) and the connector (e.g., 101) of the electronic device (100) may be in contact. For example, the connector (134) (e.g., a terminal) of the charging case (130) and the connector (e.g., 101) of the electronic device (100) may be connected via a cable. There is no limitation on the way in which the connector (134) (e.g., terminal) of the charging case (130) and the connector (e.g., 101) of the electronic device (100) come into contact or are connected. The charging case (130) can provide power to the electronic device (100) through the connector (134) based on power provided from a power source (e.g., a battery (137) or an external power source). The power (e.g., voltage and / or current) provided to the electronic device (100) through the connector (134) can be controlled by the PMIC (135). For example, the PMIC (135) can include a converter, and there is no limitation on the way in which the PMIC (135) is implemented. The charging case (130) can provide power provided from the power source to the connector (134) through the PMIC (135). The PMIC (135) can bypass power provided from a power source and transmit the bypassed power to the connector (134). The PMIC (135) can convert power provided from a power source and provide the converted power to the connector (134).For example, the charging case (130) can control power (e.g., voltage and / or current) applied to the connector (134) using the PMIC (135) based on input (e.g., user input) via the button (136).

[0032] In one embodiment, the electronic device (100) (e.g., 210 and / or 220) may charge the battery (102) (e.g., 212 and / or 222) based on power received from the charging case (130) via the connector (101) (e.g., 211 and / or 221). For example, the electronic device (100) may charge the battery (102) via a converter using power received via the connector (101). The converter may provide charging power to the battery (102) by converting power provided via the connector (101). There is no limitation on how the converter is implemented. In one embodiment, the electronic device (100) may not include the converter. In one embodiment, the electronic device (100) may include a battery limiter. For example, the electronic device (100) may include a battery limiter without including the converter. The electronic device (100) can receive power (e.g., voltage and / or current) converted by the PMIC (135) through the connector (101) and charge the battery (102) by controlling the received power using a battery limiter. According to one embodiment, the electronic device (100) may include both a converter and a battery limiter.

[0033] According to one embodiment, the charging case (130) can communicate with the electronic device (100) (e.g., the first wearable device (210) and the second wearable device (220)). For example, the electronic device (100) can communicate with the charging case (130) through the connector (101). The charging case (130) can communicate with the electronic device (100) through the connector (134). The charging case (130) can transmit a signal to the electronic device (100) through the connector (134). The electronic device (100) can receive a signal transmitted from the charging case (130) through the connector (101). The electronic device (100) can transmit a signal to the charging case (130) through the connector (101). The charging case (130) can receive a signal transmitted from the electronic device (100) through the connector (134). For example, the charging case (130) can transmit a signal to the electronic device (100) by controlling the voltage (or current) applied to the connector (134). The electronic device (100) can check the signal provided from the charging case (130) through the connector (101). There is no limitation on the method by which the charging case (130) transmits the signal. According to one embodiment, the charging case (130) can also communicate with the electronic device (100) (e.g., the first wearable device (210) and the second wearable device (220)) in a wireless communication manner.

[0034] According to one embodiment, the charging case (130) may include a communication circuit (141). The charging case (130) may communicate with an electronic device (100) (e.g., wireless earphones) or an external device (e.g., a mobile phone) using the communication circuit (141) (e.g., a communication circuit supporting wireless communication). There is no limitation on the communication method supported by the communication circuit (141). According to one embodiment, the charging case (130) may not include the communication circuit (141).

[0035] According to one embodiment, the charging case (130) may include a magnet (133). For example, the magnet (133) may be placed on the cover (131) of the charging case (130), but there are no limitations on the position and arrangement of the magnet (133).

[0036] According to one embodiment, the charging case (130) may include a sensor (138). For example, the charging case (130) may use the sensor (138) to determine whether the cover (131) is opened or closed. There is no limitation on the type of the sensor (138). For example, the charging case (130) may use the sensor (138) (e.g., a Hall sensor) to sense a magnetic field generated by a magnet (133) included in the cover (131) to determine whether the cover (131) is opened or closed. According to one embodiment, the charging case (130) may not include the magnet (133). In this case, the charging case (130) may include a sensor (138) (e.g., a sensor other than a Hall sensor) for determining whether the cover (131) is opened or closed. According to one embodiment, the charging case (130) may not include the sensor (138).

[0037] According to one embodiment, the charging case (130) may include a processor (140) and a memory (139). The processor (140) may include a control circuit. The memory (139) may store instructions. The instructions stored in the memory (139), when executed by the processor (140), may cause the charging case (130) to perform at least one operation. The processor (140) may control the PMIC (135). Even if the charging case (130) includes the processor (140), the PMIC (135) may operate without a control signal from the processor (140). According to one embodiment, the charging case (130) may not include the processor (140) and / or the memory (139). If the charging case (130) does not include the processor (140), the PMIC (135) may operate as designed on its own.

[0038] In Fig. 1, each component of the charging case (130) is illustrated as being placed on the cover (131) or the main body (132), but Fig. 1 is only an example, and there is no limitation on the position where each component of the charging case (130) is placed.

[0039] Referring to FIG. 1, according to one embodiment, an electronic device (100) may include a connector (101), a battery (102), a memory (105), a communication circuit (106), and a processor (108).

[0040] Referring to FIG. 2, according to one embodiment, a first wearable device (210) may include a connector (211), a battery (212), a memory (215), a communication circuit (216), and a processor (218). According to one embodiment, a second wearable device (220) may include a connector (221), a battery (222), a memory (225), a communication circuit (226), and a processor (228).

[0041] Referring to FIGS. 1 and 2, the connector (101) of FIG. 1 may be the connector (211) and / or the connector (221) of FIG. 2. The battery (102) of FIG. 1 may be the battery (212) and / or the battery (222) of FIG. 2. The memory (105) of FIG. 1 may be the memory (215) and / or the memory (225) of FIG. 2. The communication circuit (106) of FIG. 1 may be the communication circuit (216) and / or the communication circuit (226) of FIG. 2. The processor (108) of FIG. 1 may be the processor (218) and / or the processor (228) of FIG. 2.

[0042] According to one embodiment, the processor (108) of the electronic device (100) may include a first processor (103) and a second processor (104), but the processor (108) may be implemented as a single processor. According to one embodiment, the processor (218) of the first wearable device (210) may include a first processor (213) and a second processor (214), but the processor (218) may be implemented as a single processor. According to one embodiment, the processor (228) of the second wearable device (220) may include a first processor (223) and a second processor (224), but the processor (218) may be implemented as a single processor. Referring to FIGS. 1 and 2, the first processor (103) of FIG. 1 may be the first processor (213) and / or the first processor (223) of FIG. 2. The second processor (104) of FIG. 1 may be the second processor (214) and / or the second processor (224) of FIG. 2. For example, the first processor (103) (e.g., 213 and / or 223) may control operations related to charging of the battery (102) (e.g., 212 and / or 222). For example, the second processor (104) (e.g., 214 and / or 224) may control operations related to wireless communication via the communication circuit (106) (e.g., 216 and / or 226).

[0043] Referring to FIG. 1, according to one embodiment, the electronic device (100) may include a sensor (107). For example, the electronic device (100) may use the sensor (107) to determine whether the cover (131) of the charging case (130) is open or closed. There is no limitation on the type of the sensor (107). For example, the electronic device (100) may use the sensor (107) (e.g., a Hall sensor) to sense a magnetic field generated by a magnet (133) included in the cover (131) of the charging case (130) to determine whether the cover (131) is open or closed. According to one embodiment, the charging case (130) may not include the magnet (133). In this case, the electronic device (100) may include a sensor (107) (e.g., a sensor other than a Hall sensor) for determining whether the cover (131) of the charging case (130) is open or closed. In one embodiment, the electronic device (100) may not include a sensor (107).

[0044] Referring to FIG. 2, according to one embodiment, the first wearable device (210) may include a sensor (217). According to one embodiment, the second wearable device (220) may include a sensor (227). Referring to FIGS. 1 and 2, the sensor (107) of FIG. 1 may be the sensor (217) and / or the sensor (227) of FIG. 2.

[0045] Figure 3 (a) may be a front view. Figure 3 (b) may be a perspective view. Figure 3 (c) may be a bottom view.

[0046] Referring to FIG. 3, according to one embodiment, a first wearable device (210) may be inserted into a first portion (e.g., a first portion of a main body (132)) of a charging case (130). A second wearable device (220) may be inserted into a second portion (e.g., a second portion of a main body (132)) of a charging case (130). According to one embodiment, the first wearable device (210) may include a head portion (210a) and a tail portion (210b). The second wearable device (220) may include a head portion (220a) and a tail portion (220b). According to one embodiment, a sensor (217) may be included in the head portion (210a) of the first wearable device (210), but there is no limitation on the placement location of the sensor (217). A sensor (227) may be included in the head portion (220a) of the second wearable device (220), but there is no limitation on the placement position of the sensor (217). According to one embodiment, a first portion (134a) of a connector (134) of a charging case (130) may be in contact with a connector (211) of a first wearable device (210). A second portion (134b) of a connector (134) of a charging case (130) may be in contact with a connector (221) of a second wearable device (220). Referring to (c) of FIG. 3, the charging case (130) may include a port (338) for receiving power from an external power source. As shown in FIG. 3, the button (136) of the charging case (130) may be a physical button, but as described above, there are no limitations on the implementation method and / or placement position of the button (136), and for example, the button (136) may be implemented in software. However, the embodiment of FIG. 3 is merely an example, and the first wearable device (210), the second wearable device (220), and the charging case (130) may be implemented differently from FIG. 3.

[0047] In this document, when an electronic device (100) (e.g., 210 and / or 220) performs a specific operation, it may mean that various hardware included in the electronic device (100) (e.g., 210 and / or 220), for example, a processor (108) (e.g., 218 and / or 228) such as a micro controlling unit (MCU), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a microprocessor, or an application processor (AP), performs the specific operation. When the electronic device (100) (e.g., 210 and / or 220) performs a specific operation, it may mean that the processor (108) (e.g., 218 and / or 228) controls other hardware to perform the specific operation. The electronic device (100) (e.g., 210 and / or 220) performing a particular operation may mean that at least one instruction for performing the particular operation stored in a storage circuit (e.g., memory (105) (e.g., 215 and / or 225)) of the electronic device (100) (e.g., 210 and / or 220) is executed, thereby causing the processor (108) (e.g., 218 and / or 228) or other hardware to perform the particular operation. The at least one instruction stored in the memory (105) (e.g., 215 and / or 225) of the electronic device (100) (e.g., 210 and / or 220), when executed by the processor (108) (e.g., 218 and / or 228), may cause the electronic device (100) (e.g., 210 and / or 220) to perform at least one operation. The operation of the electronic device (100) may be an operation of one of the first wearable device (210) or the second wearable device (220) (e.g., a device set as a master or a device set by a user or manufacturer), or an operation of each of the first wearable device (210) and the second wearable device (220).

[0048] The operations of the electronic device (100) (e.g., 210 and / or 220) may be described in detail with reference to the embodiments described above (e.g., the embodiments of FIGS. 1 to 3) and the embodiments described below (e.g., the embodiments of FIGS. 4 to 20). Although each embodiment is disclosed in a separate drawing and a separate paragraph, this is merely for convenience of explanation, and at least some of the embodiments described above and at least some of the embodiments described below may be applied together. At least some of the embodiments described above and at least some of the embodiments described below may be omitted.

[0049] FIG. 4 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0050] Referring to FIGS. 4 and 5, a method for performing a pairing operation between an electronic device (100) (e.g., 210 and / or 220) and an external device (500) while the electronic device (100) is inserted into a charging case (130) may be described. The external device (500) may be the electronic device (2001) of FIG. 20 (e.g., a mobile phone, a tablet, a laptop), and there is no limitation on the type of the external device. "Pairing" may be a connection of communication between the electronic device (100) and the external device (500). A "pairing operation" may be an operation performed for a communication connection between the electronic device (100) and the external device (500). "Coupling" may be a connection of communication between a first wearable device (210) and a second wearable device (220). “Decoupling” may be a state in which communication between the first wearable device (210) and the second wearable device (220) is disconnected.

[0051] At least some of the operations of FIG. 4 may be omitted. The order of the operations of FIG. 4 may be changed. Operations other than those of FIG. 4 may be performed before, during, or after the operations of FIG. 4.

[0052] Referring to FIG. 4, in operation 401, according to one embodiment, an input (e.g., user input) through a button (136) of the charging case (130) may be confirmed in the charging case (130). For example, the user may press the button (136) of the charging case (130). The button (136) of the case (130) may be pressed at a first time point and released at a second time point after a first period from the first time point. The first period between the first time point and the second time point may be longer than or shorter than a reference time point, as described below. For example, when the reference time point is 3 seconds, the user may press the button (136) for more than 3 seconds or may press the button (136) for less than 3 seconds. As described above, the button (136) may be a physical button, but there is no limitation on the implementation method of the button (136), and for example, the button (136) may be implemented in software.

[0053] In operation 403, according to one embodiment, based on an input of operation 401 (e.g., a user input), an input voltage corresponding to the input of operation 401 may be provided from the charging case (130) to the electronic device (100) through connectors (e.g., 134 and 101). The “input voltage (e.g., a charging voltage)” may be a voltage provided from the charging case (130) to the electronic device (100). For example, the charging case (130) may provide an input voltage (e.g., a charging voltage) for charging the electronic device (100), and then, based on an input of operation 401 (e.g., a user input), provide an input voltage (e.g., a control voltage) corresponding to the input of operation 401. The “charging voltage” may be an input voltage for charging the electronic device (100). The electronic device (100) can charge the battery (102) based on the input voltage for charging, based on whether the input voltage for charging (e.g., charging voltage) satisfies the charging criterion. The “control voltage” may be a voltage for controlling the electronic device (100). The electronic device (100) can perform a specific operation to be described later based on whether the pattern of the input voltage (e.g., control voltage) corresponds to the reference pattern to be described later. For example, the charging case (130) can provide an input voltage corresponding to the input of operation 401 to the electronic device (100) through the connector (134). The electronic device (100) can receive an input voltage corresponding to the input of operation 401 from the charging case (130) through the connector (101). The “operation of providing the input voltage” of operation 403 can be understood as an “operation of transmitting a signal.” The "operation of receiving an input voltage" in operation 403 can be understood as an "operation of receiving a signal." For example, the signal in operation 403 may be a PLC (power line communication) signal. PLC may be a communication method based on switching a reference voltage (e.g., high) and a modulation voltage (e.g., low) using a voltage provided through a connector (e.g., 134 and 101).The modulation voltage may be a voltage that is a certain amount lower than the determined charging voltage (e.g., reference voltage). As the voltage provided through the connectors (e.g., 134 and 101) switches between the reference voltage (e.g., high) and the modulation voltage (e.g., low), a signal may be transmitted from the charging case (130) to the electronic device (100). However, there is no limitation on the method of transmitting the signal from the charging case (130) to the electronic device (100).

[0054] In one embodiment, the signal of operation 403 may be a signal adjusted by the PMIC (135) based on an input (e.g., user input) through the button (136) of operation 401. The signal of operation 403 may be a signal unrelated to the processor (140) of the charging case (130). For example, the charging case (130) may provide a signal through the connector (134) using the PMIC (135) based on an input (e.g., user input) through the button (136) of operation 401, even if it does not include the processor (140) (or, even if it includes the processor (140), unrelated to the processor (140). For example, the PMIC (135) may include a switch. The charging case (130) can provide a signal (e.g., input voltage) through the connector (134) by controlling a switch using the PMIC (135) based on an input (e.g., user input) through the button (136) of the 401 operation. For example, the charging case (130) can provide a first signal through the connector (134) at a first time point when the button (136) is pressed, and can provide a second signal through the connector (134) at a second time point after a first period from the first time point when the button (136) is released. For example, the signal can be configured as shown in Table 1, but Table 1 is only an example, and there is no limitation on the configuration of the signal.

[0055] Direction Header Data Description Charging Case ↓ Electronic Device 011000000010 Button Pressed 011000000011 Pressed Button Dropped

[0056] In operation 403, according to one embodiment, the electronic device (100) can check the input voltage provided from the charging case (130) through the connector (101). As described above, the "operation of checking the input voltage" can be understood as an operation of receiving a signal. The electronic device (100) can check the input voltage provided from the charging case (130) through the connector (101) based on a user input related to the button (136) of the charging case (130). In operation 405, according to one embodiment, the electronic device (100) can check whether the input voltage (e.g., a pattern of the input voltage) corresponds to a reference pattern for a reference time. The reference pattern is a pre-specified pattern, and there is no limitation on the reference pattern. For example, the reference pattern can be a pattern in which a constant input voltage is continuously maintained. For example, the reference pattern can be a pattern in which a first voltage and a second voltage are repeated. For example, the reference pattern can be a pattern corresponding to an input voltage having a specific waveform. For example, the reference pattern may be a pattern in which signals including data such as Table 1 are received. For example, “the input voltage (e.g., the pattern of the input voltage) corresponds to the reference pattern during the reference time” may mean that a first signal (e.g., a signal corresponding to “button pressed” in Table 1) is received at a first time point, and a second signal (e.g., a signal corresponding to “pressed button released” in Table 1) is received at a second time point after the reference time from the first time point. For example, the electronic device (100) may determine that the pattern of the input voltage corresponds to the reference pattern during the reference time based on the fact that a first signal (e.g., a signal corresponding to “button pressed” in Table 1) is received at a first time point, and a second signal (e.g., a signal corresponding to “pressed button released” in Table 1) is received at a second time point after the reference time from the first time point.For example, the electronic device (100) may determine that the pattern of the input voltage corresponds to the reference pattern for less than the reference time based on the fact that a first signal (e.g., a signal corresponding to "button pressed" in Table 1) is received at a first time point and a second signal (e.g., a signal corresponding to "button released" in Table 1) is received at a second time point whose time interval from the first time point is less than the reference time. In operation 407, according to one embodiment, the electronic device (100) may determine pairing based on the fact that the pattern of the input voltage corresponds to the reference pattern for the reference time. In operation 409, according to one embodiment, the electronic device (100) may perform a pairing operation with an external device (e.g., 500 in FIG. 5) through the communication circuit (106) based on the determination of the pairing. For example, the "operation of determining pairing" may be an "operation of determining entry into pairing mode." For example, a "pairing operation" may be an operation for establishing communication. For example, the electronic device (100) may update pairing information for communication with an external device (500) based on a pairing determination. For example, updating pairing information may involve deleting existing connection information and updating with new connection information, but is not limited thereto. The electronic device (100) may perform a pairing operation with the external device (500) through the communication circuit (106) based on the updated pairing information.According to one embodiment, the electronic device (100) includes a first wearable device (210) and a second wearable device (220), and the electronic device (100), in operations 407 and 409, checks the MAC addresses of the first wearable device (210) and the second wearable device (220) and the coupling MAC addresses of the first wearable device (210) and the second wearable device (220), and if the first wearable device (210) and the second wearable device (220) are not coupled, establishes the coupling of the first wearable device (210) and the second wearable device (220), updates the pairing history, and allows an external device (e.g., 500 of FIG. 5) to find the electronic device (100) for pairing. There is. For example, the electronic device (100) and the external device (e.g., 500) can transmit and receive packets for pairing. For example, referring to FIG. 5, based on the pairing operation between the electronic device (100) and the external device (500), the external device (500) can display a screen (510) for communication connection with the electronic device (100). Specific embodiments of operations 407 and 409 will be described later with reference to the embodiments of FIGS. 6 to 19.

[0057] FIG. 6 is a flowchart of a method of operating an electronic device according to one embodiment.

[0058] Referring to FIG. 6, a method for performing a pairing operation between an electronic device (100) (e.g., 210 and / or 220) and an external device (e.g., 500 of FIG. 5) based on whether a cover (131) of the charging case (130) is opened while the electronic device (100) is inserted into the charging case (130) may be described.

[0059] At least some of the operations of FIG. 6 may be omitted. The order of the operations of FIG. 6 may be changed. Operations other than those of FIG. 6 may be performed before, during, or after the operations of FIG. 6.

[0060] Referring to FIG. 6, in operation 601, according to one embodiment, an input (e.g., user input) through a button (136) of the charging case (130) can be confirmed in the charging case (130). Operation 601 can correspond to operation 401 of FIG. 4.

[0061] In operation 603, according to one embodiment, based on an input (e.g., a user input) of operation 601, an input voltage corresponding to the input of operation 601 may be provided from the charging case (130) to the electronic device (100) through connectors (e.g., 134 and 101). Operation 603 may correspond to operation 403 of FIG. 4.

[0062] In operation 605, according to one embodiment, the electronic device (100) may determine whether the pattern of the input voltage corresponds to a reference pattern for a reference time. Operation 605 may correspond to operation 405 of FIG. 4.

[0063] In operation 607, according to one embodiment, the electronic device (100) can determine whether the cover (131) of the charging case (130) is open based on whether the pattern of the input voltage corresponds to the reference pattern for the reference time. There is no limitation on the method by which the electronic device (100) determines whether the cover (131) of the charging case (130) is open. According to one embodiment, the electronic device (100) can include a sensor (e.g., 107 of FIG. 1 , 217, 227 of FIG. 3 ). There is no limitation on the type of the sensor (e.g., 107 of FIG. 1 , 217, 227 of FIG. 3 ). The electronic device (100) can determine the sensing value of the sensor (e.g., 107 of FIG. 1 , 217, 227 of FIG. 3 ). The electronic device (100) can determine that the cover (131) of the charging case (130) is open based on whether the sensing value of the sensor (e.g., 107 of FIG. 1, 217, 227 of FIG. 3) falls within a reference sensing range. For example, the electronic device (100) may include a Hall sensor (e.g., 107 of FIG. 1, 217, 227 of FIG. 3) that detects a magnetic field. The electronic device (100) can detect a magnetic field by a magnet (133) included in the cover (131) of the charging case (130) by confirming the sensing value of the Hall sensor (e.g., 107 of FIG. 1, 217, 227 of FIG. 3). The electronic device (100) can determine whether the cover (131) of the charging case (130) is open based on whether the sensing value of the hall sensor (e.g., 107 of FIG. 1, 217, 227 of FIG. 3) is within a reference sensing range. According to one embodiment, the electronic device (100) can also determine whether the cover (131) of the charging case (130) is open without the sensor (e.g., 107 of FIG. 1, 217, 227 of FIG. 3). According to one embodiment, the charging case (130) can determine whether the cover (131) is open. There is no limitation on the method by which the charging case (130) determines whether the cover (131) of the charging case (130) is open.For example, the charging case (130) may include a sensor (e.g., 138 of FIG. 1). There is no limitation on the type of the sensor (e.g., 138 of FIG. 1). The charging case (130) may check the sensing value of the sensor (e.g., 138 of FIG. 1). The charging case (130) may check that the cover (131) of the charging case (130) is open based on whether the sensing value of the sensor (e.g., 138 of FIG. 1) is within a reference sensing range. For example, the charging case (130) may include a Hall sensor (e.g., 138 of FIG. 1) that detects a magnetic field. The charging case (130) may detect a magnetic field by a magnet (133) included in the cover (131) of the charging case (130) by checking the sensing value of the Hall sensor (e.g., 138 of FIG. 1). The charging case (130) can determine whether the cover (131) of the charging case (130) is open based on whether the sensing value of the hall sensor (e.g., 138 in FIG. 1) is within the reference sensing range. The charging case (130) can provide information corresponding to whether the cover (131) is open to the electronic device (100). The electronic device (100) can receive the information provided from the charging case (130). The electronic device (100) can determine whether the cover (131) of the charging case (130) is open based on the information provided from the charging case (130).

[0064] In operation 607, the electronic device (100) may determine pairing based on confirmation that the cover (131) of the charging case (130) is open. Based on the determination of pairing, the electronic device (100) may perform pairing mode entry in operation 609. Operation 609 may correspond to operation 409 of FIG. 4. In operation 607, based on confirmation that the cover (131) of the charging case (130) is closed, the charging case (130) and / or the electronic device (100) may perform operations 611, 613, and / or 615.

[0065] In operation 611, according to one embodiment, based on whether the cover (131) of the charging case (130) is closed, the charging case (130) may determine whether to perform pairing. In one embodiment, when the cover (131) of the charging case (130) is closed, which device among the charging case (130) or the electronic device (130) to perform pairing may be determined based on whether the charging case (130) includes a communication circuit (e.g., 141). For example, when the cover (131) of the charging case (130) is closed, operation 613 may be performed based on whether the charging case (130) includes a communication circuit (e.g., 141). For example, when the cover (131) of the charging case (130) is closed, operation 615 may be performed based on the fact that the charging case (130) does not include a communication circuit (e.g., 141). According to one embodiment, when the cover (131) of the charging case (130) is closed, which device among the charging case (130) or the electronic device (130) will perform pairing may be determined based on user settings. In operation 611, when it is determined that the charging case (130) performs pairing, operation 613 may be performed, and when it is determined that the electronic device (130) performs pairing, operation 615 may be performed.

[0066] In operation 613, according to one embodiment, the charging case (130) may perform a pairing operation with an external device (e.g., 500 of FIG. 5) and provide pairing information to the electronic device (100). The electronic device (100) may establish a communication connection with the external device (e.g., 500 of FIG. 5) based on the pairing information provided from the charging case (130).

[0067] In operation 615, according to one embodiment, the electronic device (100) may enter a pairing enhancement mode. The pairing enhancement mode may be a mode that increases the transmission power of packet transmission for a pairing operation and reduces the interval between packet transmissions. The electronic device (100) may increase the transmission power of packet transmission for a pairing operation and reduce the interval between packet transmissions based on the determination of pairing and confirmation of the closure of the cover (131) of the charging case (130).

[0068] FIG. 7 is a flowchart of a method of operating an electronic device according to one embodiment.

[0069] Referring to FIG. 7, a method can be described in which the configuration of the electronic device (100) (e.g., 210 and / or 220) is controlled to be off when the electronic device (100) is inserted into the charging case (130), and the configuration of the electronic device (100) is controlled to be on when the button (136) of the charging case (130) is pressed.

[0070] At least some of the operations of FIG. 7 may be omitted. The order of the operations of FIG. 7 may be changed. Operations other than those of FIG. 7 may be performed before, during, or after the operations of FIG. 7.

[0071] Referring to FIG. 7, in operation 701, according to one embodiment, an electronic device (100) (e.g., 210 and / or 220) may be inserted into a charging case (130). For example, the electronic device (100) may be inserted into the charging case (130) while a communication connection is established with a first external device (e.g., 500 of FIG. 5). The electronic device (100) may be inserted into the charging case (130) while outputting audio based on data provided from the first external device (e.g., 500 of FIG. 5).

[0072] In operation 703, according to one embodiment, the electronic device (100) may control audio output to be turned off based on being inserted into the charging case (130). For example, the electronic device (100) may stop outputting audio based on data provided from the first external device (e.g., 500 of FIG. 5) based on being inserted into the charging case (130). For example, if only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), operation 703 may be performed on the inserted device.

[0073] In operation 705, according to one embodiment, the electronic device (100) may control a communication-related configuration to be turned off based on being inserted into the charging case (130). For example, the communication-related configuration may include a communication circuit (106) (e.g., 216 and / or 226) and / or a second processor (104) (e.g., 214 and / or 224). As the communication-related configuration of the electronic device (100) is controlled to be turned off, the communication connection between the electronic device (100) and the first external device (e.g., 500 of FIG. 5) may be released. For example, when only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), operation 705 may be performed on the inserted device.

[0074] There is no restriction on the order of operations 703 and 705. That is, operation 703 may be performed first and then operation 705 may be performed, or operation 703 may be performed after operation 705 is performed first and thus data is no longer received from the first external device (e.g., 500 in FIG. 5).

[0075] In operation 707, according to one embodiment, the electronic device (100) may perform charging of the battery (102) based on an input voltage for charging (e.g., charging voltage) provided from the charging case (130) based on being inserted into the charging case (130). The electronic device (100) may charge the battery (102) based on the input voltage for charging (e.g., charging voltage) based on whether the input voltage for charging satisfies a charging criterion.

[0076] In operation 709, according to one embodiment, an input (e.g., user input) via a button (136) of the charging case (130) may be confirmed in the charging case (130). Operation 709 may correspond to operation 401 of FIG. 4.

[0077] In operation 711, according to one embodiment, based on an input of operation 709 (e.g., a user input), an input voltage corresponding to the input of operation 709 may be provided from the charging case (130) to the electronic device (100) through connectors (e.g., 134 and 101). Operation 711 may correspond to operation 403 of FIG. 4.

[0078] In operation 713, according to one embodiment, the electronic device (100) may control a configuration related to communication to turn on based on the input voltage corresponding to the input of operation 709 being verified. For example, the electronic device (100) may verify an input voltage provided through the connector (101) (e.g., 211 and / or 221) while the second processor (104) (e.g., 214 and / or 224) is off. The electronic device (100) may control a second processor (104) (e.g., 214 and / or 224) configured to control an operation related to wireless communication through the communication circuit (106) (e.g., 216 and / or 226) to turn on based on the pattern of the input voltage verified while the second processor (104) (e.g., 214 and / or 224) is off corresponding to a reference pattern. For example, the electronic device (100) may control the second processor (104) (e.g., 214 and / or 224) to turn on based on receiving a first signal (e.g., a signal corresponding to “button pressed” in Table 1) at a first point in time when the second processor (104) (e.g., 214 and / or 224) is off. For example, the electronic device (100) may control the second processor (104) (e.g., 214 and / or 224) to turn on based on receiving a first signal (e.g., a signal corresponding to “button pressed” in Table 1) at a first point in time when the second processor (104) (e.g., 214 and / or 224) is off, but before receiving a second signal (e.g., a signal corresponding to “button released” in Table 1) at a second point in time after the first point in time.

[0079] In operation 715, according to one embodiment, the electronic device (100) may determine pairing (e.g., determine whether to enter pairing mode) based on whether the pattern of the input voltage corresponds to the reference pattern for a reference time. The electronic device (100) may update pairing information with an external device (e.g., 500 of FIG. 5) using the second processor (104) (e.g., 214 and / or 224) based on whether the pattern of the input voltage corresponds to the reference pattern for a reference time.

[0080] FIG. 8 is a flowchart of a method of operating an electronic device according to one embodiment.

[0081] Referring to FIG. 8, a method for providing pairing information from the first wearable device (210) to the second wearable device (220) when the first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130) and a pairing operation is performed, and then the second wearable device (220) is inserted into the charging case (130), can be described.

[0082] At least some of the operations of FIG. 8 may be omitted. The order of the operations of FIG. 8 may be changed. Operations other than those of FIG. 8 may be performed before, during, or after the operations of FIG. 8.

[0083] Referring to FIG. 8, in operation 801, according to one embodiment, the first wearable device (210) may be inserted into the charging case (130) and the second wearable device (220) may not be inserted into the charging case (130). The first wearable device (210) may control audio output to be off and / or control communication-related configuration to be off based on being inserted into the charging case (130). According to one embodiment, the first wearable device (210) may determine that the second wearable device (220) is not inserted into the charging case (130) while being inserted into the charging case (130). For example, the first wearable device (210) may determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the charging case (130). For example, the first wearable device (210) can determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the second wearable device (220).

[0084] In operation 803, according to one embodiment, the first wearable device (210) may determine pairing based on an input voltage provided through the connector (101) (e.g., 211). Operation 803 may correspond to operations 401, 403, 405, and 407. For example, when the first wearable device (210) is inserted into the charging case (130), a button (136) of the charging case (130) may be pressed. The first wearable device (210) may determine the input voltage provided through the connector (211) based on the pressing of the button (136) of the charging case (130). The first wearable device (210) can control a configuration related to communication to be turned on based on checking an input voltage provided through a connector (211) based on a pressing of a button (136) of a charging case (130). The first wearable device (210) can determine pairing between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time.

[0085] In operation 805, according to one embodiment, the first wearable device (210) may perform a pairing operation between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) based on a pairing determination. The electronic device (100) (e.g., the first wearable device (210)) may perform the pairing operation between the first wearable device (210) and the external device (e.g., 500 of FIG. 5) while the first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130). For example, the first wearable device (210) and the external device (e.g., 500 of FIG. 5) may transmit and receive packets for pairing. Based on the 805 operation, a communication connection can be established between the first wearable device (210) and an external device (e.g., 500 of FIG. 5).

[0086] In operation 807, according to one embodiment, after a pairing operation is performed between the first wearable device (210) and an external device (e.g., 500 of FIG. 5), the second wearable device (220) may be inserted into the charging case (130).

[0087] In operation 809, according to one embodiment, after a pairing operation is performed between the first wearable device (210) and an external device (e.g., 500 of FIG. 5), based on the second wearable device (220) being inserted into the charging case (130), the first wearable device (210) may provide pairing information between the first wearable device (210) and the external device (e.g., 500 of FIG. 5) to the second wearable device (220). According to one embodiment, operation 809 may be performed via the charging case (130). For example, the first wearable device (210) may provide pairing information between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) to the charging case (130), and the charging case (130) may provide pairing information between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) to the second wearable device (220). In one embodiment, operation 809 may be performed in a wired manner between the first wearable device (210) and the second wearable device (220). For example, when the connector (211) of the first wearable device (210) and the connector (221) of the second wearable device (220) are electrically connected through the connector (134) of the charging case (130), the first wearable device (210) can directly provide pairing information between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) to the second wearable device (220). According to one embodiment, operation 809 can be performed wirelessly between the first wearable device (210) and the second wearable device (220). For example, the first wearable device (210) may provide pairing information between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) to the second wearable device (220) via the communication circuit (216).The second wearable device (220) can receive pairing information between the first wearable device (210) and an external device (e.g., 500 of FIG. 5) from the first wearable device (210) through a communication circuit (226).

[0088] FIG. 9 is a flowchart of a method of operating an electronic device according to one embodiment. FIG. 10 is a diagram illustrating the operation of an electronic device according to one embodiment.

[0089] Referring to FIGS. 9 and 10 , a method for releasing coupling and performing a pairing operation upon a request for decoupling between the first wearable device (210) and the second wearable device (220) based on pairing determined while the first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130) can be described. The first external device (1010) and the second external device (1020) of FIG. 10 may be the electronic device (2001) of FIG. 20 (e.g., a mobile phone, a tablet, a laptop), and there is no limitation on the type of the external device. In FIG. 10 , 1091 may be an existing pairing. For example, before the pairing operation with the first external device (1010) is performed, the first wearable device (210) and the second wearable device (220) may be paired with the second external device (1020). 1092 may be a coupling between the first wearable device (210) and the second wearable device (220). 1093 may be a new pairing.

[0090] At least some of the operations of FIG. 9 may be omitted. The order of the operations of FIG. 9 may be changed. Operations other than those of FIG. 9 may be performed before, during, or after the operations of FIG. 9.

[0091] Referring to FIG. 9, in operation 901, according to one embodiment, the first wearable device (210) may be inserted into the charging case (130) and the second wearable device (220) may not be inserted into the charging case (130). The first wearable device (210) may control audio output to be turned off and / or control communication-related configurations to be turned off based on being inserted into the charging case (130). According to one embodiment, the first wearable device (210) may determine that the second wearable device (220) is not inserted into the charging case (130) while being inserted into the charging case (130). For example, the first wearable device (210) may determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the charging case (130). For example, the first wearable device (210) can determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the second wearable device (220).

[0092] In operation 903, according to one embodiment, the first wearable device (210) may determine pairing based on an input voltage provided through the connector (101) (e.g., 211). Operation 903 may correspond to operations 401, 403, 405, and 407. For example, when the first wearable device (210) is inserted into the charging case (130), a button (136) of the charging case (130) may be pressed. The first wearable device (210) may determine the input voltage provided through the connector (211) based on the pressing of the button (136) of the charging case (130). The first wearable device (210) can control a configuration related to communication to be turned on based on checking an input voltage provided through a connector (211) based on a pressing of a button (136) of a charging case (130). The first wearable device (210) can determine pairing between the first wearable device (210) and a first external device (e.g., 1010 of FIG. 10) based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time.

[0093] In operation 905, according to one embodiment, the first wearable device (210) may determine whether a coupling between the first wearable device (210) and the second wearable device (220) is established based on the determination of pairing. The first wearable device (210) may perform operation 907 based on the determination of pairing and the confirmation of coupling. The first wearable device (210) may perform operation 911 based on the determination of pairing and the confirmation of decoupling between the first wearable device (210) and the second wearable device (220).

[0094] In operation 907, according to one embodiment, the first wearable device (210) may determine whether to perform decoupling (e.g., release of coupling) based on the confirmation of coupling between the first wearable device (210) and the second wearable device (220). For example, the first wearable device (210) may determine to perform decoupling (e.g., release of coupling) by receiving a request for decoupling from an external device (e.g., 1020). In one embodiment, based on the first wearable device (210) confirming coupling between the first wearable device (210) and the second wearable device (220) in operation 905, in operation 907, information about the coupling may be transmitted to a second external device (e.g., 1020 of FIG. 10) connected to the first wearable device (210) and the second wearable device (220), and a first request for decoupling between the first wearable device (210) and the second wearable device (220) may be received from the second external device (e.g., 1020 of FIG. 10). For example, referring to FIG. 10, the second external device (1020) may display a screen (1021) requesting a selection for decoupling between the first wearable device (210) and the second wearable device (220), and transmit a first request for decoupling between the first wearable device (210) and the second wearable device (220) based on the user's selection. In one embodiment, if the request for decoupling between the first wearable device (210) and the second wearable device (220) is prohibited, operations 907 and 909 may not be performed.

[0095] In operation 909, according to one embodiment, the first wearable device (210) may release the coupling between the first wearable device (210) and the second wearable device (220) based on receiving the first request of operation 907. For example, the first wearable device (210) may delete the partner MAC address between the first wearable device (210) and the second wearable device (220) and release the coupling between the first wearable device (210) and the second wearable device (220). For example, the first wearable device (210) may store a partner MAC address between the first wearable device (210) and the second wearable device (220) before releasing the coupling between the first wearable device (210) and the second wearable device (220). For example, the partner MAC address may be stored in the first wearable device (210), the second wearable device (220), and / or the charging case (130). For example, the first wearable device (210) may store information (e.g., “main / sub information”) regarding which of the first wearable device (210) and the second wearable device (220) is the main device and which is the sub device before releasing the coupling between the first wearable device (210) and the second wearable device (220). For example, the “main / sub information” may be stored in the first wearable device (210), the second wearable device (220), and / or the charging case (130). Based on the release of the coupling between the first wearable device (210) and the second wearable device (220), the first wearable device (210) inserted into the charging case (130) may no longer receive data from a previously connected external device (e.g., the second external device (e.g., 1020 of FIG. 10)).Even after the coupling between the first wearable device (210) and the second wearable device (220) is released, the second wearable device (220) not inserted into the charging case (130) can output audio based on data provided from a previously connected external device (e.g., the second external device (e.g., 1020 of FIG. 10)).

[0096] In operation 911, according to one embodiment, the first wearable device (210) may perform a pairing operation between the first wearable device (210) and the first external device (e.g., 1010 of FIG. 10) after releasing the coupling between the first wearable device (210) and the second wearable device (220). Operation 911 may correspond to operation 409. For example, the first external device (e.g., 1010 of FIG. 10) may display a screen (e.g., 1011) for selecting pairing. According to operation 911, the first wearable device (210) inserted into the charging case (130) may perform a pairing operation with a new external device (e.g., the first external device (e.g., 1010 of FIG. 10)).

[0097] Fig. 11 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 12 is a drawing explaining the operation of an electronic device according to one embodiment.

[0098] Referring to FIGS. 11 and 12, a method for performing a pairing operation while maintaining a coupling between the first wearable device (210) and the second wearable device (220) is based on a request to maintain a coupling between the first wearable device (210) and the second wearable device (220) based on a pairing determination while the first wearable device (210) is inserted into a charging case (130) and the second wearable device (220) is not inserted into the charging case (130) can be described. The first external device (1210) and the second external device (1220) of FIG. 12 may be the electronic device (2001) of FIG. 20 (e.g., a mobile phone, a tablet, a laptop), and there is no limitation on the type of the external device. In FIG. 12, 1291 may be an existing pairing. For example, before a pairing operation with a first external device (1210) is performed, the first wearable device (210) and the second wearable device (220) may be paired with the second external device (1220). 1292 may be a coupling between the first wearable device (210) and the second wearable device (220). 1293 may be a new pairing.

[0099] At least some of the operations of FIG. 11 may be omitted. The order of the operations of FIG. 11 may be changed. Operations other than those of FIG. 11 may be performed before, during, or after the operations of FIG. 11.

[0100] Referring to FIG. 11, in operation 1101, according to one embodiment, the first wearable device (210) may be inserted into the charging case (130) and the second wearable device (220) may not be inserted into the charging case (130). The first wearable device (210) may control audio output to be turned off and / or control a configuration related to communication to be turned off based on being inserted into the charging case (130). According to one embodiment, the first wearable device (210) may be inserted into the charging case (130) and it may be determined that the second wearable device (220) is not inserted into the charging case (130). For example, the first wearable device (210) can determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the charging case (130). For example, the first wearable device (210) can determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the second wearable device (220).

[0101] In operation 1103, according to one embodiment, the first wearable device (210) may determine pairing based on an input voltage provided through the connector (101) (e.g., 211). Operation 1103 may correspond to operations 401, 403, 405, and 407. For example, when the first wearable device (210) is inserted into the charging case (130), a button (136) of the charging case (130) may be pressed. The first wearable device (210) may determine the input voltage provided through the connector (211) based on the pressing of the button (136) of the charging case (130). The first wearable device (210) can control a configuration related to communication to be turned on based on checking an input voltage provided through a connector (211) based on a pressing of a button (136) of a charging case (130). The first wearable device (210) can determine pairing between the first wearable device (210) and a first external device (e.g., 1210 of FIG. 12) based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time.

[0102] In operation 1105, according to one embodiment, the first wearable device (210) may determine whether a coupling between the first wearable device (210) and the second wearable device (220) has been established based on the determination of pairing. The first wearable device (210) may perform operation 1107 based on the determination of pairing and the determination of coupling.

[0103] In operation 1107, according to one embodiment, the first wearable device (210) may determine whether to maintain the coupling based on the confirmation of the coupling between the first wearable device (210) and the second wearable device (220). For example, the first wearable device (210) may determine to maintain the coupling by receiving a request for maintaining the coupling from an external device (e.g., 1220 of FIG. 12). According to one embodiment, the first wearable device (210), based on confirming the coupling between the first wearable device (210) and the second wearable device (220) in operation 1105, transmits information about the coupling and information indicating that pairing with a new external device (e.g., the first external device (e.g., 1210 of FIG. 12)) has been requested to the second external device (e.g., 1220 of FIG. 12) connected to the first wearable device (210) and the second wearable device (220), and maintains the coupling between the first wearable device (210) and the second wearable device (220) and initiates pairing with the new external device (e.g., the first external device (e.g., 1210 of FIG. 12)). A second request for permission may be received. For example, referring to FIG. 12, the second external device (1220) may display a screen (e.g., 1221) requesting a selection for permission of a new pairing (e.g., 1293), and, based on the user's selection, transmit a second request for maintaining the coupling between the first wearable device (210) and the second wearable device (220) and allowing pairing with a new external device (e.g., the first external device (e.g., 1210 of FIG. 12)). In one embodiment, if the request for decoupling between the first wearable device (210) and the second wearable device (220) is prohibited, operations 1107 and 1109 may not be performed.

[0104] In operation 1109, according to one embodiment, the first wearable device (210) may release the connection between the second wearable device (220) and the second external device (e.g., 1220 of FIG. 12) based on receiving the second request of operation 1107. In one embodiment, operation 1109 may not be performed, and in this case, even if the second request is received, operation 1111 may be performed while the connection between the second wearable device (220) and the second external device (e.g., 1220 of FIG. 12) is maintained.

[0105] In operation 1111, according to one embodiment, the first wearable device (210) may perform a pairing operation between the first wearable device (210) and the first external device (e.g., 1010 of FIG. 10) while the coupling between the first wearable device (210) and the second wearable device (220) is maintained based on receiving the second request of operation 1107. For example, the first wearable device (210) may perform a pairing operation between the first wearable device (210) and the first external device (e.g., 1010 of FIG. 10) while the coupling between the first wearable device (210) and the second wearable device (220) is maintained based on receiving the second request of operation 1107. For example, a first external device (e.g., 1010 of FIG. 10) may display a screen (e.g., 1011) for selecting pairing. The first wearable device (210) may provide pairing information with the first external device (e.g., 1010 of FIG. 10) to the second wearable device (220).

[0106] Fig. 13 is a flowchart of a method of operating an electronic device according to one embodiment. Fig. 14 is a drawing explaining the operation of an electronic device according to one embodiment.

[0107] Referring to FIGS. 13 and 14, a method for determining an external device to be connected according to the order of a list of a plurality of external devices (e.g., 1410, 1420, 1430, 1440 of FIG. 14) can be described. The plurality of external devices (e.g., 1410, 1420, 1430, 1440 of FIG. 14) of FIG. 14 may be an electronic device (2001) of FIG. 20 (e.g., a mobile phone, a tablet, a laptop), and there is no limitation on the type of the external devices. In FIG. 14, 1491, 1492, 1493, and 1494 may be pairing histories.

[0108] At least some of the operations of FIG. 13 may be omitted. The order of the operations of FIG. 13 may be changed. Operations other than those of FIG. 13 may be performed before, during, or after the operations of FIG. 13.

[0109] Referring to FIG. 13, in operation 1301, according to one embodiment, the first wearable device (210) may be inserted into the charging case (130) and the second wearable device (220) may not be inserted into the charging case (130). The first wearable device (210) may control audio output to be turned off and / or control communication-related configuration to be turned off based on being inserted into the charging case (130). According to one embodiment, the first wearable device (210) may be inserted into the charging case (130) and it may be determined that the second wearable device (220) is not inserted into the charging case (130). For example, the first wearable device (210) can determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the charging case (130). For example, the first wearable device (210) can determine that the second wearable device (220) is not inserted into the charging case (130) based on information provided from the second wearable device (220).

[0110] In operation 1303, according to one embodiment, the electronic device (100) (e.g., the first wearable device (210)) may determine, based on an input voltage provided through the connector (101) (e.g., 211), that a time for which a pattern of the input voltage corresponds to a reference pattern is less than a reference time. For example, when the first wearable device (210) is inserted into the charging case (130), the button (136) of the charging case (130) may be pressed. The first wearable device (210) may determine the input voltage provided through the connector (211) based on the pressing of the button (136) of the charging case (130). The first wearable device (210) may control a configuration related to communication to be turned on based on the determination of the input voltage provided through the connector (211) based on the pressing of the button (136) of the charging case (130). The first wearable device (210) can determine that the time period during which the input voltage pattern corresponds to the reference pattern is less than the reference time period. The electronic device (100) can perform operation 1305 based on the fact that the time period during which the input voltage pattern corresponds to the reference pattern is less than the reference time period.

[0111] In operation 1305, according to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may determine whether coupling between the first wearable device (210) and the second wearable device (220) is established. The electronic device (100) may perform operation 1307 based on determining that a time period corresponding to a pattern of an input voltage to a reference pattern is less than a reference time period and determining coupling between the first wearable device (210) and the second wearable device (220).

[0112] In operation 1307, according to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may check a list of at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that may be connected to the electronic device (100). According to one embodiment, information about the at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that may be connected to the electronic device (100) may be stored in the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)). According to one embodiment, the electronic device (100) may transmit information about at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that can be connected to the electronic device (100) to the currently paired external device. According to one embodiment, the electronic device (100) may receive information about at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that can be connected to the electronic device (100) from the currently paired external device. According to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may generate a list of at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that can be connected to the electronic device (100) based on the pairing history (e.g., 1491, 1492, 1493, 1494). For example, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may check the previously generated list. According to one embodiment, the list may be sorted in order of pairing registration time based on the pairing history. According to one embodiment, the list may be sorted in order of recently used devices, or in reverse order.In one embodiment, the sorting of the list may be set and / or changed based on user input. For example, the sorting of the list may be set and / or changed based on user input via the screen of a currently paired external device.

[0113] In operation 1309, according to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may determine an external device to be connected among at least one external device included in the list (e.g., 1410, 1420, 1430, 1440 of FIG. 14) based on the order of the list in operation 1307.

[0114] In operation 1311, according to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may perform a pairing operation with the external device determined in operation 1309. According to one embodiment, the electronic device (100) may change the external device to be connected in the order of the list based on the additional input.

[0115] FIG. 15 is a flowchart of a method of operating an electronic device according to one embodiment.

[0116] Referring to FIG. 15, a method for identifying a main device and a sub-device among a first wearable device (210) and a second wearable device (220) and providing pairing history from the main device to the sub-device can be described. For example, this may be the case when one of two wearable devices (e.g., 210, 220) is newly acquired and the two wearable devices (e.g., 210, 220) are not coupled, either when a new wearable device is purchased or a used one of the wearable devices is purchased.

[0117] At least some of the operations of FIG. 15 may be omitted. The order of the operations of FIG. 15 may be changed. Operations other than those of FIG. 15 may be performed before, during, or after the operations of FIG. 15.

[0118] Referring to FIG. 15, in operation 1501, according to one embodiment, the first wearable device (210) and the second wearable device (220) may be inserted into a charging case (130). The first wearable device (210) and the second wearable device (220) may control audio output to be turned off and / or control configurations related to communication to be turned off based on being inserted into the charging case (130).

[0119] In operation 1503, according to one embodiment, the electronic device (100) may determine that a time for which a pattern of an input voltage corresponds to a reference pattern is less than a reference time based on an input voltage provided through the connector (101). For example, when the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130), the button (136) of the charging case (130) may be pressed. The electronic device (100) may determine the input voltage provided through the connector (101) based on the pressing of the button (136) of the charging case (130). The electronic device (100) may control a configuration related to communication to be turned on based on the determination of the input voltage provided through the connector (101) based on the pressing of the button (136) of the charging case (130). The electronic device (100) can determine that the time period during which the pattern of the input voltage corresponds to the reference pattern is less than the reference time period. The electronic device (100) can perform operation 1505 based on the fact that the time period during which the pattern of the input voltage corresponds to the reference pattern is less than the reference time period.

[0120] In operation 1505, according to one embodiment, the electronic device (100) may determine whether a coupling between the first wearable device (210) and the second wearable device (220) is established. The electronic device (100) may perform operation 1507 based on determining that a time period during which a pattern of an input voltage corresponds to a reference pattern while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130) is less than a reference time period, and determining that a coupling between the first wearable device (210) and the second wearable device (220) is not established.

[0121] In operation 1507, according to one embodiment, the electronic device (100) may determine a main device and a sub-device among the first wearable device (210) and the second wearable device (220). According to one embodiment, based on the existence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) may determine the main device and the sub-device based on the coupling history. According to one embodiment, based on the existence of a coupling history of the first wearable device (210) and the absence of a coupling history of the second wearable device (220), the electronic device (100) may determine the second wearable device (220) without a coupling history as a sub-device and determine the first wearable device (210) with a coupling history as a main device. In one embodiment, based on the absence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) can determine the main device and the sub-device based on user selection.

[0122] In operation 1509, according to one embodiment, the electronic device (100) may establish a coupling between the first wearable device (210) and the second wearable device (220).

[0123] In operation 1511, according to one embodiment, the electronic device (100) may provide pairing history from the main device (e.g., the first wearable device (210)) to the sub device (e.g., the second wearable device (220)), as determined in operation 1507.

[0124] FIG. 16 is a flowchart of an operating method of an electronic device according to one embodiment. FIG. 17 is a flowchart of an operating method of an electronic device according to one embodiment. FIG. 18 is a flowchart of an operating method of an electronic device according to one embodiment. FIG. 19 is a flowchart of an operating method of an electronic device according to one embodiment.

[0125] With reference to FIGS. 16, 17, 18, and 19, embodiments including the embodiments of FIGS. 1 to 15 can be described.

[0126] At least some of the operations of FIGS. 16, 17, 18, and 19 may be omitted. The order of the operations of FIGS. 16, 17, 18, and 19 may be changed. Operations other than the operations of FIGS. 16, 17, 18, and 19 may be performed before, during, or after performing the operations of FIGS. 16, 17, 18, and 19.

[0127] "A" in Fig. 16 may correspond to "A" in Fig. 17. "B" in Fig. 16 may correspond to "B" in Fig. 18. "C" in Fig. 16 may correspond to "C" in Fig. 19.

[0128] Before operation 1601 of FIG. 16 is performed, according to one embodiment, the electronic device (100) (e.g., 210 and / or 220) may be inserted into the charging case (130). For example, the electronic device (100) (e.g., 210 and / or 220) may be inserted into the charging case (130) in a state in which a communication connection is established with a first external device (e.g., the first device corresponding to 2001 of FIG. 20). The electronic device (100) (e.g., 210 and / or 220) may be inserted into the charging case (130) in a state in which audio is output based on data provided from the first external device (e.g., the first device corresponding to 2001 of FIG. 20). According to one embodiment, the electronic device (100) may control audio output to be turned off based on being inserted into the charging case (130). For example, the electronic device (100) may stop outputting audio based on data provided from a first external device (e.g., a first device corresponding to 2001 of FIG. 20 ) based on being inserted into the charging case (130). For example, if only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), the device (e.g., 210 or 220) inserted into the charging case (130) may control audio output to be turned off. According to one embodiment, the electronic device (100) may control a communication-related configuration to be turned off based on being inserted into the charging case (130). For example, the communication-related configuration may include a communication circuit (106) (e.g., 216 and / or 226) and / or a second processor (104) (e.g., 214 and / or 224). As the configuration related to communication of the electronic device (100) is controlled to be off, the communication connection between the electronic device (100) and the first external device (e.g., the first device corresponding to 2001 of FIG. 20) may be released.For example, if only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), the device (e.g., 210 or 220) inserted into the charging case (130) may control the configuration related to communication to be turned off. According to one embodiment, the electronic device (100) may perform charging of the battery (102) based on an input voltage for charging (e.g., a charging voltage) provided from the charging case (130) based on being inserted into the charging case (130). The electronic device (100) may charge the battery (102) based on the input voltage for charging (e.g., a charging voltage) based on whether the input voltage for charging (e.g., a charging voltage) satisfies a charging criterion. For example, if only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), the device (e.g., 210 or 220) inserted into the charging case (130) can charge the battery (e.g., 212 or 222) based on the input voltage for charging (e.g., charging voltage) if the input voltage for charging satisfies the charging criterion. If the battery (e.g., 212 or 222) is fully charged, or if the charging case (130) cannot provide charging power, charging may be stopped or may not start. Thereafter, operation 1601 of FIG. 16 may be performed.

[0129] Referring to FIG. 16, in operation 1601, an input (e.g., user input) through a button (136) of the charging case (130) may be confirmed in accordance with one embodiment. Operation 1601 may correspond to operation 401 of FIG. 4.

[0130] In operation 1603, according to one embodiment, based on an input (e.g., a user input) of operation 1601, an input voltage corresponding to the input of operation 1601 may be provided from the charging case (130) to the electronic device (100) through connectors (e.g., 134 and 101). Operation 1603 may correspond to operation 403 of FIG. 4.

[0131] In operation 1605, according to one embodiment, the electronic device (100) may control a configuration related to communication to turn on based on the input voltage corresponding to the input of operation 1601 being verified. For example, the electronic device (100) may verify an input voltage provided through the connector (101) (e.g., 211 and / or 221) while the second processor (104) (e.g., 214 and / or 224) is off. The electronic device (100) may control a second processor (104) (e.g., 214 and / or 224) configured to control an operation related to wireless communication through the communication circuit (106) (e.g., 216 and / or 226) to turn on based on the pattern of the input voltage verified while the second processor (104) (e.g., 214 and / or 224) is off corresponding to a reference pattern. For example, the electronic device (100) may control the second processor (104) (e.g., 214 and / or 224) to turn on based on receiving a first signal (e.g., a signal corresponding to “button pressed” in Table 1) at a first point in time when the second processor (104) (e.g., 214 and / or 224) is off. For example, the electronic device (100) may control the second processor (104) (e.g., 214 and / or 224) to turn on based on receiving a first signal (e.g., a signal corresponding to “button pressed” in Table 1) at a first point in time when the second processor (104) (e.g., 214 and / or 224) is off, but before receiving a second signal (e.g., a signal corresponding to “button released” in Table 1) at a second point in time after the first point in time. Action 1605 can correspond to action 713 of Fig. 7.

[0132] In operation 1607, according to one embodiment, the electronic device (100) may compare a time at which a pattern of an input voltage corresponds to a reference pattern with a reference time. Operation 1607 may correspond to operation 405 of FIG. 4. For example, the reference pattern may be a time at which a constant input voltage is continuously maintained. For example, the reference pattern may be a time at which a first voltage and a second voltage are repeated. For example, the reference pattern may be a pattern corresponding to an input voltage having a specific waveform. For example, the reference pattern may be a pattern in which signals including data such as Table 1 are received. For example, "the input voltage (e.g., the pattern of the input voltage) corresponds to the reference pattern during the reference time" may mean that a first signal (e.g., a signal corresponding to "button pressed" in Table 1) is received at a first time point, and a second signal (e.g., a signal corresponding to "button released" in Table 1) is received at a second time point after the reference time from the first time point. For example, the electronic device (100) can determine that the pattern of the input voltage corresponds to the reference pattern during the reference time based on the fact that a first signal (e.g., a signal corresponding to "button pressed" in Table 1) is received at a first time point, and a second signal (e.g., a signal corresponding to "pressed button released" in Table 1) is received at a second time point after a reference time from the first time point. For example, the electronic device (100) can determine that the pattern of the input voltage corresponds to the reference pattern during the reference time based on the fact that a first signal (e.g., a signal corresponding to "button pressed" in Table 1) is received at a first time point, and a second signal (e.g., a signal corresponding to "pressed button released" in Table 1) is received at a second time point whose time interval from the first time point is less than the reference time. According to one embodiment, the electronic device (100) can perform operation 1609 based on the fact that the pattern of the input voltage corresponds to the reference pattern during the reference time.According to one embodiment, the electronic device (100) may proceed to “A” of FIG. 17 based on the pattern of the input voltage corresponding to the reference pattern for less than the reference time.

[0133] In operation 1609, according to one embodiment, the electronic device (100) can determine the number of devices (e.g., 210 and / or 220) inserted into the charging case (130) based on whether the pattern of the input voltage corresponds to the reference pattern for a reference time. According to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) can determine the number of devices (e.g., 210 and / or 220) inserted into the charging case (130) based on information provided from the charging case (130). For example, the charging case (130) can determine whether the first wearable device (210) and / or the second wearable device (220) is seated in the charging case (130) based on communication (e.g., communication via the connector (134)) with the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)). For example, the charging case (130) can determine whether the first wearable device (210) and / or the second wearable device (220) is seated in the charging case (130) based on charging (e.g., charging via the connector (134)) of the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)). For example, the charging case (130) can determine whether the first wearable device (210) and / or the second wearable device (220) is seated in the charging case (130) based on the resistance value confirmed through the connector (134). The charging case (130) can transmit information about whether the first wearable device (210) and / or the second wearable device (220) is seated in the charging case (130) to the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)).Accordingly, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) can check the number of devices (e.g., 210 and / or 220) inserted into the charging case (130) based on information provided from the charging case (130). According to one embodiment, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) can check the number of devices (e.g., 210 and / or 220) inserted into the charging case (130) based on communication (e.g., wired communication or wireless communication) between them (e.g., between the first wearable device (210) and the second wearable device (220). For example, wired communication between the first wearable device (210) and the second wearable device (220) may be a method in which information is directly transmitted between the first wearable device (210) and the second wearable device (220) in a state in which the connector (211) of the first wearable device (210) and the connector (221) of the second wearable device (220) are electrically connected through the connector (134) of the charging case (130). For example, wired communication between the first wearable device (210) and the second wearable device (220) may be such that the charging case (130) acts as a transmitter, so that information is transmitted from the second wearable device (220) (or the first wearable device (210)) to the charging case (130), and the charging case (130) transmits the received information to the first wearable device (210) (or the second wearable device (220)).

[0134] In operation 1611, according to one embodiment, the electronic device (100) may perform operation 1613 based on the pattern of the input voltage corresponding to the reference pattern for a reference time and the insertion of the first wearable device (210) and the second wearable device (220) into the charging case (130). The electronic device (100) may proceed to “B” of FIG. 18 based on the pattern of the input voltage corresponding to the reference pattern for a reference time and the insertion of only one of the first wearable device (210) and the second wearable device (220) into the charging case (130).

[0135] In operation 1613, according to one embodiment, the electronic device (100) can check whether there is a coupling between the first wearable device (210) and the second wearable device (220) while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130). The electronic device (100) can perform operation 1615 based on checking the coupling between the first wearable device (210) and the second wearable device (220) while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130). The electronic device (100) may proceed to “C” of FIG. 19 based on confirming decoupling between the first wearable device (210) and the second wearable device (220) while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130).

[0136] In operation 1615, according to one embodiment, the electronic device (100) may determine pairing between the electronic device (100) and the first external device (e.g., the first device corresponding to 2001 of FIG. 20 ) based on confirming coupling between the first wearable device (210) and the second wearable device (220) while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130). Based on the determination of pairing, the electronic device (100) may perform a pairing operation with the first external device (e.g., the first device corresponding to 2001 of FIG. 20 ) through the communication circuit (106). Operation 1615 may correspond to operations 407 and 409 of FIG. 4 .

[0137] Referring to FIG. 17, in operation 1701, according to one embodiment, the electronic device (100) may determine the number of devices (e.g., 210 and / or 220) inserted into the charging case (130) based on whether the pattern of the input voltage corresponds to a reference pattern for less than a reference time in operation 1607 of FIG. 16.

[0138] In operation 1703, according to one embodiment, the electronic device (100) may perform operation 1709 based on whether the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130). The electronic device (100) may perform operation 1705 based on whether only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130).

[0139] In operation 1705, according to one embodiment, the electronic device (100) may check a list of at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that may be connected to the electronic device (100). For example, the electronic device (100) may generate a list of at least one external device (e.g., 1410, 1420, 1430, 1440 of FIG. 14) that may be connected to the electronic device (100) based on pairing history (e.g., 1491, 1492, 1493, 1494). For example, the electronic device (100) may also check a previously generated list.

[0140] In operation 1707, according to one embodiment, the electronic device (100) may determine an external device to be connected from among at least one external device included in the list (e.g., 1410, 1420, 1430, 1440 of FIG. 14) based on the order of the list in operation 1705. According to one embodiment, the electronic device (100) may perform a pairing operation between the determined external device and a device inserted into the charging case (130) (e.g., the first wearable device (210)). According to one embodiment, the electronic device (100) may change the external device to be connected based on the order of the list based on an additional input. The electronic device (100) may provide pairing information with the external device from the first wearable device (210) to the second wearable device (220).

[0141] In operation 1709, according to one embodiment, the electronic device (100) may determine whether there is a coupling between the first wearable device (210) and the second wearable device (220) while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130). According to one embodiment, the electronic device (100) may not perform pairing with an external device based on determining that the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130), that the pattern of the input voltage corresponds to a reference pattern for a period of time less than a reference time, and that there is a coupling between the first wearable device (210) and the second wearable device (220). In one embodiment, the electronic device (100) may perform operation 1711 based on the first wearable device (210) and the second wearable device (220) being inserted into the charging case (130), the pattern of the input voltage corresponding to the reference pattern for a period of time less than the reference time, and the decoupling between the first wearable device (210) and the second wearable device (220).

[0142] In operation 1711, according to one embodiment, the electronic device (100) may check the coupling history of the first wearable device (210) and the second wearable device (220) and determine the main device and the sub device. Operation 1711 may correspond to operation 1507 of FIG. 15. In operation 1713, the electronic device (100) may determine a condition and perform operation 1715, operation 1717, or operation 1719.

[0143] In operation 1715, according to one embodiment, based on the existence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) can determine the main device and the sub device based on the coupling history.

[0144] In operation 1717, according to one embodiment, based on the existence of a coupling history of the first wearable device (210) and the absence of a coupling history of the second wearable device (220), the electronic device (100) may determine the second wearable device (220) with no coupling history as a sub-device and determine the first wearable device (210) with a coupling history as a main device.

[0145] In operation 1719, according to one embodiment, based on the absence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) may determine the main device and the sub-device based on a user selection. According to one embodiment, based on the absence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) may determine the main device and the sub-device based on a specified condition. For example, the specified condition may determine the main device and the sub-device based on a device inserted into the charging case (130) first, a device with a high remaining battery level, or a manufacturer setting.

[0146] In operation 1721, according to one embodiment, the electronic device (100) may establish a coupling between the first wearable device (210) and the second wearable device (220), and provide pairing history from the main device (e.g., the first wearable device (210)) to the sub device (e.g., the second wearable device (220)).

[0147] Referring to FIG. 18, in operation 1801, according to one embodiment, the electronic device (100) may provide information about a device (e.g., the first wearable device (210)) inserted into the charging case (130) and / or coupling information between the first wearable device (210) and the second wearable device (220) (e.g., information about the presence or absence of coupling and / or information about coupled devices) to an external device (e.g., a previously connected external device or an external device to be newly connected) based on whether a pattern of an input voltage corresponds to a reference pattern for a reference time and only one device among the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130). In operation 1803, depending on the coupling or decoupling between the first wearable device (210) and the second wearable device (220), operation 1807 or operation 1805 may be performed. For example, in operation 1803, the electronic device (100) (e.g., the first wearable device (210) and / or the second wearable device (220)) may check whether coupling between the first wearable device (210) and the second wearable device (220) occurs.

[0148] In operation 1805, according to one embodiment, the electronic device (100) may determine pairing of a device inserted into the charging case (130) (e.g., the first wearable device (210)) with an external device based on determining that a pattern of an input voltage corresponds to a reference pattern for a reference time, that only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), and that decoupling between the first wearable device (210) and the second wearable device (220) is confirmed.

[0149] In operation 1807, according to one embodiment, the electronic device (100) may determine whether to perform decoupling (e.g., release of coupling) based on whether the pattern of the input voltage corresponds to the reference pattern for the reference time, only one of the first wearable device (210) and the second wearable device (220) is inserted into the charging case (130), and coupling between the first wearable device (210) and the second wearable device (220) is confirmed. According to one embodiment, based on whether decoupling (e.g., release of coupling) is not set, the electronic device (100) may perform operation 1819. According to one embodiment, based on whether decoupling is not set, the electronic device (100) may perform operation 1809.

[0150] In operation 1809, according to one embodiment, the electronic device (100) may determine whether decoupling is approved. According to one embodiment, the electronic device (100) transmits information about a device (e.g., a first wearable device (210)) inserted into a charging case (130) in operation 1801 and / or coupling information (e.g., information about the presence or absence of coupling, and / or information about a coupled device) between the first wearable device (210) and the second wearable device (220) to a device not inserted into the charging case (130) (e.g., the second wearable device (220)) and a second external device (e.g., a second device corresponding to 2001 of FIG. 20) connected to the device (e.g., the first wearable device (210)) inserted into the charging case (130), and transmits information about decoupling between the first wearable device (210) and the second wearable device (220) from the second external device. 1. A request may be received. Based on receiving the first request for decoupling, the electronic device (100) may perform operation 1811. According to one embodiment, the electronic device (100) transmits information about a device (e.g., a first wearable device (210)) inserted into a charging case (130) in operation 1801 and / or coupling information (e.g., information about the presence or absence of coupling, and / or information about coupled devices) between the first wearable device (210) and the second wearable device (220) to a device not inserted into the charging case (130) (e.g., the second wearable device (220)) and a second external device (e.g., a second device corresponding to 2001 of FIG. 20) connected to the device (e.g., the first wearable device (210)) inserted into the charging case (130), and transmits information about maintaining the coupling between the first wearable device (210) and the second wearable device (220) from the second external device. 2 Requests may be received. Based on receiving the second request for maintaining the coupling, the electronic device (100) may perform operation 1815.

[0151] In operations 1810 and 1811, according to one embodiment, the electronic device (100) may store a coupling history between the first wearable device (210) and the second wearable device (220) and release the coupling between the first wearable device (210) and the second wearable device (220) based on an approval of decoupling (e.g., based on receipt of the first request of operation 1809). For example, the electronic device (100) may store a partner MAC address between the first wearable device (210) and the second wearable device (220) before releasing the coupling between the first wearable device (210) and the second wearable device (220). For example, the partner MAC address may be stored in the first wearable device (210), the second wearable device (220), and / or the charging case (130). For example, the electronic device (100) may store information (e.g., “main / sub information”) regarding which of the first wearable device (210) and the second wearable device (220) is the main device and which is the sub device before releasing the coupling between the first wearable device (210) and the second wearable device (220). For example, the “main / sub information” may be stored in the first wearable device (210), the second wearable device (220), and / or the charging case (130).

[0152] In one embodiment, in operations 1810 and 1811, the electronic device (100) may delete the coupling history between the first wearable device (210) and the second wearable device (220) and disconnect the coupling between the first wearable device (210) and the second wearable device (220) based on the approval of decoupling (e.g., based on the reception of the first request in operation 1809). For example, the electronic device (100) may delete the partner MAC address between the first wearable device (210) and the second wearable device (220) and disconnect the coupling between the first wearable device (210) and the second wearable device (220). Based on the release of the coupling between the first wearable device (210) and the second wearable device (220), the first wearable device (210) inserted into the charging case (130) may no longer receive data from the previously connected external device. Even after the release of the coupling between the first wearable device (210) and the second wearable device (220), the second wearable device (220) not inserted into the charging case (130) may output audio based on the data provided from the previously connected external device.

[0153] In operation 1813, according to one embodiment, the electronic device (100) may perform a pairing operation between a device (e.g., a first wearable device (210)) inserted into the charging case (130) and an external device after the coupling is released in operation 1811.

[0154] In operation 1815, according to one embodiment, the electronic device (100) may determine whether decoupling is prohibited based on non-approval of decoupling (e.g., based on receiving a second request to maintain coupling). In one embodiment, the electronic device (100) may perform operation 1817 based on determining whether decoupling is prohibited in operation 1815. For example, the electronic device (100) may determine whether decoupling is to be prohibited based on a user input via a currently paired external device. For example, the electronic device (100) may perform operation 1817 when the user selects to prohibit decoupling in the future via a screen of an external device currently paired with the electronic device (100). However, this is merely an example, and there is no limitation on the method of determining whether decoupling is to be prohibited.

[0155] In operation 1817, according to one embodiment, the electronic device (100) may set decoupling non-use based on confirmation of decoupling prohibition. As decoupling non-use is set, operation 1807 may proceed to operation 1819. According to one embodiment, the electronic device (100) may perform operation 1819 after setting decoupling non-use in operation 1817.

[0156] In operation 1815, according to one embodiment, the electronic device (100) may perform operation 1819 based on determining that decoupling is acceptable.

[0157] In operation 1819, according to one embodiment, the electronic device (100) may determine pairing between a device (e.g., the second wearable device (210)) that is not inserted into the charging case (130) and an external device. For example, the electronic device (100) may perform a pairing operation between a device (e.g., the first wearable device (210)) inserted into the charging case (130) and an external device, and share pairing information with the device (e.g., the second wearable device (210)) that is not inserted into the charging case (130). For example, the electronic device (100) may perform a pairing operation between a device (e.g., the second wearable device (210)) that is not inserted into the charging case (130) and an external device, and share pairing information with the device (e.g., the first wearable device (210)) inserted into the charging case (130).

[0158] In operation 1820, according to one embodiment, the electronic device (101) can check whether automatic connection is set.

[0159] In operation 1821, according to one embodiment, the electronic device (100) may directly connect to a newly paired external device (e.g., a device corresponding to 2001 of FIG. 20) if automatic connection is set.

[0160] In operation 1823, according to one embodiment, the electronic device (100) may perform operation 1821 or operation 1825 depending on whether audio of a newly paired external device (e.g., a first device corresponding to 2001 of FIG. 20) and an existing external device (e.g., a second device corresponding to 2001 of FIG. 20) is playing if automatic connection is not established. For example, if audio playback of an existing external device (e.g., a second device corresponding to 2001 of FIG. 20) has stopped and audio of a newly paired external device (e.g., a first device corresponding to 2001 of FIG. 20) is playing, the electronic device (100) may connect to a newly paired external device (e.g., a first device corresponding to 2001 of FIG. 20).

[0161] In operation 1825, according to one embodiment, if audio playback of an existing external device (e.g., a second device corresponding to 2001 of FIG. 20) is maintained or audio of a newly paired external device (e.g., a first device corresponding to 2001 of FIG. 20) is not played, the electronic device (100) may complete pairing with the newly paired external device (e.g., a first device corresponding to 2001 of FIG. 20) while maintaining the connection of the existing external device (e.g., a second device corresponding to 2001 of FIG. 20), thereby outputting audio based on data provided from the existing external device (e.g., a second device corresponding to 2001 of FIG. 20).

[0162] Referring to FIG. 19, in operation 1911, according to one embodiment, the electronic device (100) may check the coupling history of the first wearable device (210) and the second wearable device (220) and determine the main device and the sub device based on the pattern of the input voltage corresponding to the reference pattern for the reference time, the first wearable device (210) and the second wearable device (220) being inserted into the charging case (130), and the decoupling between the first wearable device (210) and the second wearable device (220). Operation 1911 may correspond to operation 1507 of FIG. 15. In operation 1913, the electronic device (100) may determine a condition and perform operation 1915, operation 1917, or operation 1919.

[0163] In operation 1915, based on the existence of a coupling history between the first wearable device (210) and the second wearable device (220), according to one embodiment, the electronic device (100) can determine the main device and the sub device based on the coupling history.

[0164] In operation 1917, according to one embodiment, based on the existence of a coupling history of the first wearable device (210) and the absence of a coupling history of the second wearable device (220), the electronic device (100) may determine the second wearable device (220) with no coupling history as a sub-device and determine the first wearable device (210) with a coupling history as a main device.

[0165] In operation 1919, according to one embodiment, based on the absence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) may determine the main device and the sub-device based on a user selection (e.g., a user input through a screen of an external device connected to the electronic device (100). According to one embodiment, based on the absence of a coupling history between the first wearable device (210) and the second wearable device (220), the electronic device (100) may determine the main device and the sub-device based on a specified condition. For example, the specified condition may determine the main device and the sub-device based on a device inserted into the charging case (130) first, a device with a high remaining battery level, or a manufacturer setting.

[0166] In operation 1921, according to one embodiment, the first wearable device (210) and the second wearable device (220) establish a coupling, and if there is a pairing history, the main device (e.g., the first wearable device (210)) can provide the pairing history to the sub device (e.g., the second wearable device (220)).

[0167] In operation 1923, according to one embodiment, the electronic device (100) may determine pairing with an external device (e.g., a device corresponding to 2001 of FIG. 20) based on pairing history.

[0168] FIG. 20 is a block diagram of an electronic device (2001) within a network environment (2000), according to one embodiment. Referring to FIG. 20 , in the network environment (2000), the electronic device (2001) may communicate with the electronic device (2002) via a first network (2098) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (2004) or the server (2008) via a second network (2099) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (2001) may communicate with the electronic device (2004) via the server (2008). According to one embodiment, the electronic device (2001) may include a processor (2020), a memory (2030), an input module (2050), an audio output module (2055), a display module (2060), an audio module (2070), a sensor module (2076), an interface (2077), a connection terminal (2078), a haptic module (2079), a camera module (2080), a power management module (2088), a battery (2089), a communication module (2090), a subscriber identification module (2096), or an antenna module (2097). In some embodiments, the electronic device (2001) may omit at least one of these components (e.g., the connection terminal (2078)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (2076), camera module (2080), or antenna module (2097)) may be integrated into a single component (e.g., display module (2060)).

[0169] The processor (2020) may, for example, execute software (e.g., a program (2040)) to control at least one other component (e.g., a hardware or software component) of the electronic device (2001) connected to the processor (2020) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (2020) may store commands or data received from other components (e.g., a sensor module (2076) or a communication module (2090)) in the volatile memory (2032), process the commands or data stored in the volatile memory (2032), and store the resulting data in the non-volatile memory (2034). According to one embodiment, the processor (2020) may include a main processor (2021) (e.g., a central processing unit or an application processor) or a secondary processor (2023) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (2021). For example, when the electronic device (2001) includes the main processor (2021) and the secondary processor (2023), the secondary processor (2023) may be configured to use less power than the main processor (2021) or to be specialized for a given function. The secondary processor (2023) may be implemented separately from the main processor (2021) or as a part thereof.

[0170] The auxiliary processor (2023) may control at least a portion of functions or states associated with at least one component (e.g., the display module (2060), the sensor module (2076), or the communication module (2090)) of the electronic device (2001), for example, on behalf of the main processor (2021) while the main processor (2021) is in an inactive (e.g., sleep) state, or together with the main processor (2021) while the main processor (2021) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (2023) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (2080) or a communication module (2090)). In one embodiment, the auxiliary processor (2023) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (2001) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (2008)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0171] The memory (2030) can store various data used by at least one component (e.g., the processor (2020) or the sensor module (2076)) of the electronic device (2001). The data can include, for example, software (e.g., the program (2040)) and input data or output data for commands related thereto. The memory (2030) can include volatile memory (2032) or non-volatile memory (2034).

[0172] The program (2040) may be stored as software in memory (2030) and may include, for example, an operating system (2042), middleware (2044), or an application (2046).

[0173] The input module (2050) can receive commands or data to be used in a component of the electronic device (2001) (e.g., a processor (2020)) from an external source (e.g., a user) of the electronic device (2001). The input module (2050) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0174] The audio output module (2055) can output audio signals to the outside of the electronic device (2001). The audio output module (2055) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0175] The display module (2060) can visually provide information to an external party (e.g., a user) of the electronic device (2001). The display module (2060) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (2060) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0176] The audio module (2070) can convert sound into an electrical signal, or vice versa. According to one embodiment, the audio module (2070) can acquire sound through the input module (2050), output sound through the sound output module (2055), or an external electronic device (e.g., electronic device (2002)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (2001).

[0177] The sensor module (2076) can detect the operating status (e.g., power or temperature) of the electronic device (2001) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (2076) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0178] The interface (2077) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (2001) to an external electronic device (e.g., the electronic device (2002)). In one embodiment, the interface (2077) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0179] The connection terminal (2078) may include a connector through which the electronic device (2001) may be physically connected to an external electronic device (e.g., the electronic device (2002)). In one embodiment, the connection terminal (2078) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0180] The haptic module (2079) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (2079) may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0181] The camera module (2080) can capture still images and videos. In one embodiment, the camera module (2080) may include one or more lenses, image sensors, image signal processors, or flashes.

[0182] The power management module (2088) can manage power supplied to the electronic device (2001). According to one embodiment, the power management module (2088) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0183] A battery (2089) may power at least one component of the electronic device (2001). In one embodiment, the battery (2089) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0184] The communication module (2090) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (2001) and an external electronic device (e.g., electronic device (2002), electronic device (2004), or server (2008)), and the performance of communication through the established communication channel. The communication module (2090) may operate independently from the processor (2020) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (2090) may include a wireless communication module (2092) (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 (2094) (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with an external electronic device (2004) via a first network (2098) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (2099) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (2092) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (2096) to identify or authenticate the electronic device (2001) within a communication network such as the first network (2098) or the second network (2099).

[0185] The wireless communication module (2092) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimizing terminal power and connecting multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (2092) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (2092) can support various technologies for securing performance in high-frequency bands, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (2092) can support various requirements specified in the electronic device (2001), an external electronic device (e.g., the electronic device (2004)), or a network system (e.g., the second network (2099)). According to one embodiment, the wireless communication module (2092) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0186] The antenna module (2097) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (2097) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (2097) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (2098) or the second network (2099), may be selected from the plurality of antennas, for example, by the communication module (2090). A signal or power may be transmitted or received between the communication module (2090) and an external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (2097).

[0187] According to various embodiments, the antenna module (2097) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0188] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0189] According to one embodiment, commands or data may be transmitted or received between the electronic device (2001) and an external electronic device (2004) via a server (2008) connected to a second network (2099). Each of the external electronic devices (2002 or 2004) may be the same or a different type of device as the electronic device (2001). According to one embodiment, all or part of the operations executed in the electronic device (2001) may be executed in one or more of the external electronic devices (2002, 2004, or 2008). For example, when the electronic device (2001) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (2001) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (2001). The electronic device (2001) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (2001) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (2004) may include an Internet of Things (IoT) device. The server (2008) may be an intelligent server utilizing machine learning and / or a neural network.According to one embodiment, an external electronic device (2004) or server (2008) may be included within the second network (2099). The electronic device (2001) may be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology and IoT-related technology.

[0190] Those skilled in the art will appreciate that the embodiments described herein may be applied interchangeably, within the scope of their applicability. For example, those skilled in the art will appreciate that at least some operations of one embodiment described herein may be omitted and applied, or at least some operations of one embodiment may be applied in conjunction.

[0191] The technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those with ordinary skill in the technical field to which this document pertains from the description below.

[0192] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0193] According to one embodiment, an electronic device (100; 210; 220) may include a connector (101; 211; 221), a battery (102; 212; 222) configured to be charged based on charging power provided from a charging case (130) via the connector (101; 211; 221), a communication circuit (106; 216; 226) configured to support communication with an external device (500; 1010; 1020; 1210; 1220; 1410; 1420; 1430; 1440; 2001), at least one processor (108; 218; 228), and a memory (105; 215; 225) for storing instructions. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to check an input voltage provided from the charging case (130) via the connector (101; 211; 221) based on a user input associated with a button (136) of the charging case (130). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to charge the battery (102; 212; 222) based on the input voltage, based on whether the input voltage satisfies a charging criterion. The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine pairing based on whether the pattern of the input voltage corresponds to a reference pattern for a reference time.The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform a pairing operation with a first external device (500; 1010; 1210; 1410; 2001) through the communication circuit (106; 216; 226) based on the determination of the pairing.

[0194] According to one embodiment, the electronic device (100; 210; 220) may include a first wearable device (210) and a second wearable device (220). The first wearable device (210) and the second wearable device (220) may be worn on a user's ear. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to check the input voltage while at least one of the first wearable device (210) or the second wearable device (220) is inserted into the charging case (130).

[0195] In one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine whether the cover (131) of the charging case (130) is open based on whether the pattern of the input voltage corresponds to the reference pattern for the reference time. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the pairing based on determining that the cover (131) of the charging case (130) is open.

[0196] According to one embodiment, the electronic device (100; 210; 220) may include a sensor (107; 217; 227). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine a sensing value of the sensor (107; 217; 227). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine whether the cover (131) of the charging case (130) is open based on the sensing value being within a reference sensing range.

[0197] According to one embodiment, the sensor (107; 217; 227) may include a Hall sensor (107; 217; 227). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine a sensing value of the Hall sensor (107; 217; 227) based on whether the pattern of the input voltage corresponds to the reference pattern for the reference time. The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the pairing based on determining that the cover (131) of the charging case (130) is open as the sensing value of the hall sensor (107; 217; 227) falls within the reference sensing range.

[0198] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to receive information provided from the charging case (130). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine, based on the information, whether the cover (131) of the charging case (130) is open. The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the pairing based on determining that the cover (131) of the charging case (130) is open.

[0199] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to update pairing information for communication with the first external device (500; 1010; 1210; 1410; 2001) based on the determination of the pairing. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform a pairing operation with the first external device (500; 1010; 1210; 1410; 2001) based on the updated pairing information, via the communication circuit (106; 216; 226).

[0200] In one embodiment, the at least one processor (108; 218; 228) may include a first processor (103; 213; 223) associated with charging the battery (102; 212; 222), and a second processor (104; 214; 224) associated with communication via the communication circuit. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to control the second processor (104; 214; 224) to turn off based on the electronic device (100; 210; 220) being inserted into the charging case (130). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to check the input voltage while the second processor (104; 214; 224) is off. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to control the second processor (104; 214; 224) to turn on based on whether the pattern of the input voltage checked while the second processor (104; 214; 224) is off corresponds to the reference pattern. The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to update the pairing information based on the pattern of the input voltage corresponding to the reference pattern for the reference time.

[0201] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to control the communication circuit (106; 216; 226) to increase the transmission power of packet transmission for the pairing operation and to reduce the interval of packet transmission based on the determination of the pairing and confirmation of the closure of the cover (131) of the charging case (130).

[0202] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to receive pairing information related to the first external device (500; 1010; 1210; 1410; 2001) from the charging case (130) based on the determination of the pairing and confirmation of the closure of the cover (131) of the charging case (130). The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform the pairing operation with the first external device (500; 1010; 1210; 1410; 2001) based on the received pairing information.

[0203] In one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform the pairing operation between the first wearable device (210) and the first external device (500; 1010; 1210; 1410; 2001) while the first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130). The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to provide pairing information related to the first external device (500; 1010; 1210; 1410; 2001) from the first wearable device (210) to the second wearable device (220) based on the second wearable device (220) being inserted into the charging case (130) after the pairing operation is performed.

[0204] In one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the pairing while the first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine, based on the determination of the pairing, whether a coupling between the first wearable device (210) and the second wearable device (220) has been established. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to transmit information about the coupling to a second external device (500; 1020; 1220; 1420; 2001) connected to the second wearable device (220) based on the identification of the coupling, and to receive a first request for decoupling between the first wearable device (210) and the second wearable device (220) from the second external device (500; 1020; 1220; 1420; 2001). The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to release the coupling between the first wearable device (210) and the second wearable device (220) based on receiving the first request.The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform the pairing operation between the first wearable device (210) and the first external device (500; 1010; 1210; 1410; 2001) after releasing the coupling.

[0205] In one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to receive a second request for maintaining the coupling from the second external device (500; 1020; 1220; 1420; 2001). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform the pairing operation between the first wearable device (210) and the first external device (500; 1010; 1210; 1410; 2001) based on receiving the second request. The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to provide pairing information with the first external device (500; 1010; 1210; 1410; 2001) from the first wearable device (210) to the second wearable device (220).

[0206] In one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to check the input voltage while the first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine a list of at least one external device (1410; 1420; 1430; 1440; 2001) that can be connected to the electronic device (100; 210; 220) based on determining that a time period during which the pattern of the input voltage corresponds to the reference pattern is less than the reference time period, and determining coupling between the first wearable device (210) and the second wearable device (220). The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine, based on the order of the list, which of the at least one external device (1410; 1420; 1430; 1440; 2001) to be connected. The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to perform a pairing operation between the determined external device (1410; 1420; 1430; 1440; 2001) and the first wearable device (210).The above instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to provide pairing information with the determined external device (1410; 1420; 1430; 1440; 2001) from the first wearable device (210) to the second wearable device (220).

[0207] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to check the input voltage while the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine a main device and a sub-device among the first wearable device (210) and the second wearable device (220) based on determining that a time period during which the pattern of the input voltage corresponds to the reference pattern is less than the reference time period, and determining that a coupling between the first wearable device (210) and the second wearable device (220) is not established. The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to establish a coupling between the first wearable device (210) and the second wearable device (220). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to provide a pairing history from the main device to the sub device.

[0208] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine a coupling history between the first wearable device (210) and the second wearable device (220). The instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the main device and the sub-device based on the coupling history.

[0209] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the first wearable device (210) as the main device and determine the second wearable device (220) as the sub-device based on determining the presence of a coupling history of the first wearable device (210) and determining the absence of a coupling history of the second wearable device (220).

[0210] According to one embodiment, the instructions, when executed by the at least one processor (108; 218; 228), may cause the electronic device (100; 210; 220) to determine the main device and the sub-device, based on a user selection, based on the absence of a coupling history between the first wearable device (210) and the second wearable device (220).

[0211] According to one embodiment, a method of operating an electronic device (100; 210; 220) may include an operation of checking an input voltage provided from a charging case (130) through a connector (101; 211; 221) of the charging case (130) based on a user input related to a button (136) of the charging case (130). Based on whether the input voltage satisfies a charging criterion, an operation of charging a battery (102; 212; 222) of the electronic device (100; 210; 220) based on the input voltage may be included. The method may include an operation of determining pairing based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time. The method may include an operation of performing a pairing operation with a first external device (500; 1010; 1210; 1410; 2001) through a communication circuit (106; 216; 226) of the electronic device (100; 210; 220) based on the determination of the pairing.

[0212] According to one embodiment, a non-transitory computer-readable recording medium storing instructions may cause the instructions, when executed by at least one processor of an electronic device, to cause the electronic device to perform at least one operation. The at least one operation may include: checking an input voltage provided from the charging case (130) through a connector (101; 211; 221) of the charging case (130) based on a user input associated with a button (136) of the charging case (130). Based on whether the input voltage satisfies a charging criterion, the operation may include charging a battery (102; 212; 222) of the electronic device (100; 210; 220) based on the input voltage. The at least one operation may include determining pairing based on whether a pattern of the input voltage corresponds to a reference pattern for a reference time. The at least one operation may include performing a pairing operation with a first external device (500; 1010; 1210; 1410; 2001) through a communication circuit (106; 216; 226) of the electronic device (100; 210; 220) based on the determination of the pairing.

[0213] Devices according to the various embodiments disclosed in this document may take various forms. The devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Devices according to the embodiments of this document are not limited to the aforementioned devices.

[0214] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "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 any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0215] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0216] Various embodiments of the present document may be implemented as software (e.g., a program) including one or more instructions stored on a storage medium that can be read by a machine (e.g., an electronic device). For example, a processor (e.g., a controller) of the machine may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0217] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0218] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In electronic devices (100; 210; 220), Connector (101; 211; 221); A battery (102; 212; 222) configured to be charged based on charging power provided from a charging case (130) through the above connector (101; 211; 221); Communication circuitry (106; 216; 226) configured to support communication with external devices (500; 1010; 1020; 1210; 1220; 1410; 1420; 1430; 1440; 2001); At least one processor (108; 218; 228); and Contains memory (105; 215; 225) for storing instructions, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Check the input voltage provided from the charging case (130) through the connector (101; 211; 221) based on the user input related to the button (136) of the charging case (130), Based on the above input voltage satisfying the charging criterion, charging the battery (102; 212; 222) based on the above input voltage, Based on whether the pattern of the above input voltage corresponds to the reference pattern for the reference time, the pairing is determined, Based on the decision of the above pairing, causing a pairing operation to be performed with the first external device (500; 1010; 1210; 1410; 2001) through the communication circuit (106; 216; 226). Electronic devices (100; 210; 220).

2. In paragraph 1, The electronic device (100; 210; 220) includes a first wearable device (210) and a second wearable device (220), and the first wearable device (210) and the second wearable device (220) can be worn on the user's ear. The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Causing to check the input voltage while at least one of the first wearable device (210) or the second wearable device (220) is inserted into the charging case (130), Electronic devices (100; 210; 220).

3. In paragraph 1 or 2, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Based on whether the pattern of the input voltage corresponds to the reference pattern for the reference time, it is checked whether the cover (131) of the charging case (130) is open, Based on the confirmation that the cover (131) of the charging case (130) is open, causing the pairing to be determined, Electronic devices (100; 210; 220).

4. In any one of paragraphs 1 to 3, Including more sensors (107; 217; 227), The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Check the sensing values ​​of the above sensors (107; 217; 227), Based on the above sensing value being included in the reference sensing range, causing it to be confirmed that the cover (131) of the charging case (130) is open. Electronic devices (100; 210; 220).

5. In any one of paragraphs 1 to 4, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Receive information provided from the above charging case (130), Based on the above information, check whether the cover (131) of the charging case (130) is open, Based on the confirmation that the cover (131) of the charging case (130) is open, causing the pairing to be determined, Electronic devices (100; 210; 220).

6. In any one of paragraphs 1 to 5, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Based on the determination of the above pairing, the pairing information for communication with the first external device (500; 1010; 1210; 1410; 2001) is updated, Based on the updated pairing information, causing a pairing operation to be performed with the first external device (500; 1010; 1210; 1410; 2001) through the communication circuit (106; 216; 226), At least one processor (108; 218; 228) above, A first processor (103; 213; 223) related to charging of the above battery (102; 212; 222); and A second processor (104; 214; 224) associated with communication via the above-mentioned communication circuit is included, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Based on the above electronic device (100; 210; 220) being inserted into the charging case (130), the second processor (104; 214; 224) is controlled to be turned off, While the second processor (104; 214; 224) is off, the input voltage is checked, Controlling the second processor (104; 214; 224) to be turned on based on the pattern of the input voltage confirmed while the second processor (104; 214; 224) is off corresponding to the reference pattern, Causing the pairing information to be updated based on the pattern of the input voltage corresponding to the reference pattern during the reference time, Electronic devices (100; 210; 220).

7. In any one of paragraphs 1 to 6, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Based on the determination of the pairing and confirmation of the closure of the cover (131) of the charging case (130), the communication circuit (106; 216; 226) is controlled to increase the transmission power of the packet transmission for the pairing operation and to reduce the interval of the packet transmission. Electronic devices (100; 210; 220).

8. In any one of paragraphs 1 to 7, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Based on the determination of the pairing and confirmation of the closure of the cover (131) of the charging case (130), pairing information related to the first external device (500; 1010; 1210; 1410; 2001) is received from the charging case (130), Based on the received pairing information, causing the pairing operation to be performed with the first external device (500; 1010; 1210; 1410; 2001). Electronic devices (100; 210; 220).

9. In any one of paragraphs 1 to 8, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: The first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130), while performing the pairing operation between the first wearable device (210) and the first external device (500; 1010; 1210; 1410; 2001). After the above pairing operation is performed, based on the second wearable device (220) being inserted into the charging case (130), causing the first wearable device (210) to provide pairing information related to the first external device (500; 1010; 1210; 1410; 2001) to the second wearable device (220). Electronic devices (100; 210; 220).

10. In any one of paragraphs 1 to 9, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: The first wearable device (210) is inserted into the charging case (130) and the second wearable device (220) is not inserted into the charging case (130), and the pairing is determined. Based on the determination of the above pairing, it is determined whether a coupling between the first wearable device (210) and the second wearable device (220) is established, Based on the confirmation of the coupling, information about the coupling is transmitted to a second external device (500; 1020; 1220; 1420; 2001) connected to the second wearable device (220), and a first request for decoupling between the first wearable device (210) and the second wearable device (220) is received from the second external device (500; 1020; 1220; 1420; 2001). Based on receiving the first request, the coupling between the first wearable device (210) and the second wearable device (220) is released, After releasing the coupling, causing the pairing operation to be performed between the first wearable device (210) and the first external device (500; 1010; 1210; 1410; 2001). Electronic devices (100; 210; 220).

11. In any one of paragraphs 1 to 10, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: Receive a second request for maintenance of the coupling from the second external device (500; 1020; 1220; 1420; 2001), Based on receiving the second request, the pairing operation between the first wearable device (210) and the first external device (500; 1010; 1210; 1410; 2001) is performed, Causing the first wearable device (210) to provide pairing information with the first external device (500; 1010; 1210; 1410; 2001) to the second wearable device (220). Electronic devices (100; 210; 220).

12. In any one of paragraphs 1 to 11, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: The first wearable device (210) is inserted into the charging case (130), and the second wearable device (220) is not inserted into the charging case (130), and the input voltage is checked. Based on confirming that the time corresponding to the pattern of the input voltage to the reference pattern is less than the reference time, and confirming the coupling between the first wearable device (210) and the second wearable device (220), a list of at least one external device (1410; 1420; 1430; 1440; 2001) that can be connected to the electronic device (100; 210; 220) is confirmed, Based on the order of the above list, determine which external device (1410; 1420; 1430; 1440; 2001) to be connected among the at least one external device (1410; 1420; 1430; 1440; 2001), Performing a pairing operation between the determined external device (1410; 1420; 1430; 1440; 2001) and the first wearable device (210), Causing the first wearable device (210) to provide pairing information with the external device (1410; 1420; 1430; 1440; 2001) determined above to the second wearable device (220). Electronic devices (100; 210; 220).

13. In any one of paragraphs 1 to 12, The above instructions, when executed by the at least one processor (108; 218; 228), cause the electronic device (100; 210; 220) to: While the first wearable device (210) and the second wearable device (220) are inserted into the charging case (130), the input voltage is checked, Based on confirming that the time corresponding to the pattern of the input voltage to the reference pattern is less than the reference time, and confirming that coupling between the first wearable device (210) and the second wearable device (220) is not established, a main device and a sub device are determined among the first wearable device (210) and the second wearable device (220). Establishing a coupling between the first wearable device (210) and the second wearable device (220), Causing the main device to provide pairing history to the sub device; Electronic devices (100; 210; 220).

14. In the operating method of an electronic device (100; 210; 220), An operation of checking the input voltage provided from the charging case (130) through the connector (101; 211; 221) of the charging case (130) based on a user input related to the button (136) of the charging case (130), An operation of charging a battery (102; 212; 222) of the electronic device (100; 210; 220) based on the input voltage satisfying the charging criterion, An operation for determining pairing based on whether the pattern of the above input voltage corresponds to a reference pattern for a reference time, Based on the determination of the above pairing, an operation of performing a pairing operation with a first external device (500; 1010; 1210; 1410; 2001) through a communication circuit (106; 216; 226) of the electronic device (100; 210; 220) is included. method.

15. In a non-transitory computer-readable recording medium storing instructions, the instructions, when executed by at least one processor (108; 218; 228) of an electronic device (100; 210; 220), cause the electronic device (100; 210; 220) to perform at least one operation, At least one of the above actions, An operation of checking the input voltage provided from the charging case (130) through the connector (101; 211; 221) of the charging case (130) based on a user input related to the button (136) of the charging case (130), An operation of charging a battery (102; 212; 222) of the electronic device (100; 210; 220) based on the input voltage satisfying the charging criterion, An operation for determining pairing based on whether the pattern of the above input voltage corresponds to a reference pattern for a reference time, Based on the determination of the above pairing, an operation of performing a pairing operation with a first external device (500; 1010; 1210; 1410; 2001) through a communication circuit (106; 216; 226) of the electronic device (100; 210; 220) is included. Storage media.

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