Wearable device and electronic device for charging wearable device

Abstract

This wearable device may comprise a speaker for outputting sound information. The wearable device may comprise a housing including a first housing portion to be worn on a user's body part and a second housing portion fastened to the first housing portion. The first housing portion may comprise a nozzle, which is used as a path of the sound information output from the speaker. The first housing portion may comprise a sensor comprising: a first light-emitting portion that emits infrared light having a first wavelength; a second light-emitting portion that emits infrared light having a second wavelength that is longer than the first wavelength; and a light-receiving portion that receives light related to the infrared light having the first wavelength and the infrared light having the second wavelength. The second housing portion may comprise a stem portion. The second housing portion may comprise an emitter, which is disposed along the periphery of the stem portion and which emits visible light.

Description

Wearable devices and electronic devices for charging wearable devices

[0001] The descriptions below relate to wearable devices and electronic devices for charging wearable devices.

[0002] The electronic device may include a wearable device that can be worn by a user. For example, the wearable device may be worn on a body part of the user. For example, the body part may include an ear part of the user. The wearable device may include at least one sensor. For example, the wearable device may acquire data using the at least one sensor.

[0003] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above-described matters constitute prior art related to the present disclosure.

[0004] A wearable device may include a speaker for outputting acoustic information. The wearable device may include a housing including a first housing portion to be worn on a body part of a user and a second housing portion fastened to the first housing portion. The first housing portion may include a nozzle used as a path for the acoustic information output from the speaker. The first housing portion may include a sensor including a first light emitter emitting infrared light having a first wavelength, a second light emitter emitting infrared light having a second wavelength longer than the first wavelength, and a light receiver receiving light associated with the infrared light having the first wavelength and the infrared light having the second wavelength. The second housing portion may include a stem portion. The second housing portion may include an emitter disposed along a periphery of the stem portion and emitting visible light.

[0005] An electronic device may include a wearable device. The electronic device may include a charging device for the wearable device. The wearable device may include a speaker for outputting audio information. The wearable device may include a housing including a first housing portion to be worn on a body part of a user and a second housing portion fastened to the first housing portion. The first housing portion may include a sensor including a first emitter emitting infrared light having a first wavelength, a second emitter emitting infrared light having a second wavelength longer than the first wavelength, and a light receiver receiving light associated with the infrared light having the first wavelength and the infrared light having the second wavelength. The second housing portion may include a stem portion and an emitter disposed along a periphery of the stem portion and emitting visible light. The charging device may include a housing including a first housing part and a second housing part movably coupled to the first housing part between a closed state and an open state. The first housing part may include a space capable of accommodating the wearable device and may be formed of an opaque material. The second housing part may be formed of a transparent material such that the light emitting portion disposed on the stem portion of the wearable device, which is positioned within the space between the first housing part and the second housing part in the closed state, is visible from the outside of the charging device.

[0006] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0007] Figure 2 illustrates an exemplary block diagram of a wearable device.

[0008] Figure 3a illustrates an example of a sensor and emitter included in a housing of a wearable device.

[0009] Figures 3b and 3c illustrate examples of exploded perspective views of a housing of a wearable device.

[0010] FIGS. 4A and 4B illustrate examples of electronic devices for charging wearable devices and states of the electronic devices when the wearable devices are positioned inside the electronic devices.

[0011] Fig. 5 illustrates an example of an operational flow for a method of controlling the light emission of a light emitting part of a wearable device using a sensor of the wearable device.

[0012] FIGS. 6A to 6C illustrate examples of graphs illustrating a method for identifying the location of a wearable device by using received information regarding light associated with a first infrared ray emitted by a first light-emitting diode of a sensor of the wearable device and a second infrared ray emitted by a second light-emitting diode.

[0013] FIG. 7 illustrates an example in which a light-emitting portion of a wearable device emits light while the wearable device is positioned inside an electronic device for charging the wearable device.

[0014] Figures 8a to 8d illustrate examples of light emission patterns of visible light emitted by a light emitting unit of a wearable device.

[0015] The terms used in this disclosure are used only to describe specific embodiments and may not be intended to limit the scope of other embodiments. The singular expression may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by those of ordinary skill in the art described in this disclosure. Terms defined in general dictionaries among the terms used in this disclosure may be interpreted as having the same or similar meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this disclosure. In some cases, even if a term is defined in this disclosure, it cannot be interpreted to exclude embodiments of the present disclosure.

[0016] The various embodiments of the present disclosure described below illustrate a hardware-based approach as an example. However, since the various embodiments of the present disclosure include techniques utilizing both hardware and software, the various embodiments of the present disclosure do not exclude a software-based approach.

[0017] In addition, in the present disclosure, expressions such as "more than" or "less than" may be used to determine whether a specific condition is satisfied or fulfilled. However, this is merely a description for expressing an example and does not exclude descriptions such as "more than" or "less than." Conditions described as "more than" may be replaced with "more than," conditions described as "less than," and conditions described as "more than and less than" may be replaced with "more than and less than." In addition, hereinafter, "A" to "B" mean at least one of the elements from A (including A) to B (including B).

[0018] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0019] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0020] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (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 therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0021] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (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 (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (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 (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). 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.

[0022] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0023] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0024] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) 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).

[0025] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) 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.

[0026] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) 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 (160) 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.

[0027] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0028] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) 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 (176) 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.

[0029] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0030] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0031] A haptic module (179) 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 (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0032] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0033] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0034] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0035] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (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 (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (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 can 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 (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0036] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, 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 (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) 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.

[0037] The antenna module (197) 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 (197) 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 (197) 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 (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one 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 (197).

[0038] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to 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.

[0039] 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)).

[0040] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) 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 (101). The electronic device (101) 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 (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0041] A wearable device (or TWS) that outputs audio information can be worn on a part of the user's body (e.g., an ear or an external auditory canal). For example, when the wearable device is not worn by the user, the wearable device can be located within an electronic device (or a charging device) for charging the wearable device, or can be located within the user's pocket (or in contact with an external object). For example, the wearable device can use a sensor to identify whether an object in contact with (or adjacent to) the wearable device is a part of the user's body or within the user's pocket (or an external object).

[0042] For example, the wearable device can identify an object in contact with (or adjacent to) the wearable device by using a plurality of proximity sensors arranged in different areas. For example, the wearable device including a first proximity sensor and a second proximity sensor arranged in different areas, if both the first proximity sensor and the second proximity sensor recognize an object, the wearable device can recognize that the object in contact with the wearable device is the user's ear. Conversely, if one of the first proximity sensor and the second proximity sensor recognizes an object, the wearable device can identify that the object in contact with the wearable device is not the user's ear, but an external object (e.g., a pocket or a desk). The wearable device can further use an additional sensor (e.g., a touch sensor or an acceleration sensor) to identify whether the external object is the pocket by using information from the additional sensor.

[0043] As described above, the wearable device can detect whether the wearable device is worn by a user by using two proximity sensors and an additional sensor placed in different areas. However, in order to mount the proximity sensors and the additional sensor, a large space is required within the wearable device, and even if the proximity sensors and the additional sensor are used, there is a problem in that an object in contact with the wearable device cannot be accurately distinguished.

[0044] Hereinafter, in the present disclosure, a method for accurately identifying an object in contact with a wearable device by using infrared rays having different wavelengths emitted by a plurality of light-emitting diodes included within a single proximity sensor is described. The wearable device according to the present disclosure can accurately identify an object in contact with (or adjacent to) the wearable device by using light-emitting diodes emitting different wavelengths of a single proximity sensor. In addition, an electronic device (or charging device) for charging a wearable device according to the present disclosure can transparently form a portion (or lid) of the electronic device that is positioned close to the proximity sensor of the wearable device when the wearable device is positioned in a space within the electronic device for charging. Accordingly, the wearable device according to the present disclosure can accurately determine whether the portion (or lid) of the electronic device is closed or open when positioned within the electronic device. The wearable device according to the present disclosure can, based on identifying an object in contact with (or adjacent to) the wearable device using a proximity sensor as described above, use a light-emitting unit that emits light (or visible light) that can be recognized by the user to inform the user of the status of the wearable device. Accordingly, the present disclosure can provide a more convenient user experience by accurately identifying an object in contact with (or adjacent to) the wearable device and providing the user with information accordingly.

[0045] In the following FIGS. 2 to 4b, specific examples of a wearable device and an electronic device (or charging device) for charging the wearable device according to the present disclosure are described.

[0046] Figure 2 illustrates an exemplary block diagram of a wearable device.

[0047] FIG. 2 illustrates an exemplary block diagram of a wearable device (103) worn on a user's body part. For example, the body part may include the user's ear or the external auditory canal of the ear. For example, the wearable device (103) may be referred to as earbuds, earphones, or true wireless stereo (TWS).

[0048] Referring to FIG. 2, the wearable device (103) may be connected to the electronic device (101) of FIG. 1 based on a wired network and / or a wireless network. For example, the wired network may include a network such as the Internet, a local area network (LAN), a wide area network (WAN), or a combination thereof. For example, the wireless network may include a network such as long term evolution (LTE), 5g new radio (NR), wireless fidelity (WiFi), Zigbee, near field communication (NFC), Bluetooth, Bluetooth low-energy (BLE), or a combination thereof. The wearable device (103) may be directly connected to the electronic device (101), or may be indirectly connected via one or more routers and / or access points (APs). The wearable device (103) of FIG. 2 may be an example of the electronic device (102) connected to the electronic device (101) of FIG. 1.

[0049] Referring to FIG. 2, according to one embodiment, a wearable device (103) may include a processor (201), a sensor (203), a speaker (205), an emitter (207), a communication circuit (209), and a memory (211). However, the embodiments of the present disclosure are not limited thereto. For example, the processor (201), the sensor (203), the speaker (205), the emitter (207), the communication circuit (209), and the memory (211) may be electronically and / or operably coupled with each other by a communication bus. Hereinafter, operably coupled hardware components may mean that a direct connection or an indirect connection is established between the hardware components, either wired or wireless, such that a second hardware component is controlled by a first hardware component among the hardware components. Although illustrated based on different blocks, the embodiment is not limited thereto, and some of the hardware components illustrated in FIG. 2 (e.g., at least a portion of the processor (201), the communication circuit (209), and the memory (211)) may be included in a single integrated circuit such as a system on a chip (SoC) or a system in package (SIP). The type and / or number of hardware components included in the wearable device (103) is not limited to those illustrated in FIG. 2. For example, the wearable device (103) may include only some of the hardware components illustrated in FIG. 2.

[0050] According to one embodiment, the processor (201) of the wearable device (103) may include a hardware component for processing data based on one or more instructions. The hardware component for processing data may include, for example, an arithmetic and logic unit (ALU), a floating point unit (FPU), and a field programmable gate array (FPGA). As an example, the hardware component for processing data may include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP), a microcontroller (MCU), and / or a neural processing unit (NPU). The number of processors (201) may be one or more. For example, the processor (201) may have a multi-core processor structure such as a dual core, a quad core, or a hexa core. The processor (201) of FIG. 2 may be substantially identical to the content of the processor (120) of FIG. 1.

[0051] For example, the processor (201) may control the operation of the sensor (203) of FIG. 2. For example, the processor (201) may include a processor for controlling the operation or function of the sensor (203). The processor for controlling the operation or function of the sensor (203) may be referred to as a sensor processor. In one example, the sensor processor may be implemented as a single processor (201).

[0052] For example, the processor (201) may include various processing circuits and / or multiple processors. For example, the term "processor" as used herein, including in the claims, may include various processing circuits including at least one processor, one or more of which may be configured to individually and / or collectively perform the various functions described below in a distributed manner. As used herein, when "processor," "at least one processor," and "one or more processors" are described as being configured to perform various functions, these terms encompass, for example, and without limitation, situations where one processor performs some of the recited functions and other processor(s) perform other parts of the recited functions, and also situations where one processor may perform all of the recited functions. Additionally, the at least one processor may include a combination of processors that perform the various functions enumerated / disclosed, for example, in a distributed manner. At least one processor may execute program instructions to achieve or perform the various functions.

[0053] According to one embodiment, the sensor (203) of the wearable device (103) may include a proximity sensor for identifying the location of the wearable device (103). For example, the proximity sensor may be referred to as a sensor, a sensor circuit, a proximity sensor module, or a sensor module.

[0054] For example, the proximity sensor may include light emitting diodes for emitting a plurality of infrared rays and a photodetector for receiving lights associated with the infrared rays to identify the location of the wearable device (103). For example, the light emitting diodes of the proximity sensor may include a first light emitting diode for emitting a first infrared ray having a first wavelength and a second light emitting diode for emitting a second infrared ray having a second wavelength longer than the first wavelength. For example, the photodetector may receive a first light associated with the first infrared ray and a second light associated with the second infrared ray. For example, the first light may include a reflection of the first infrared ray reflected from an external object. For example, the second light may include a reflection of the second infrared ray emitted from an external object. For example, the first light emitting diode may be referred to as a first light sensor, a first infrared sensor, or a first light emitting element. For example, the second light-emitting diode may be referred to as a second light sensor, a second infrared sensor, or a second light-emitting element. For example, the light-receiving diode may be referred to as a light-receiving element.

[0055] According to one embodiment, the sensor (203) of the wearable device (103) may include a touch sensor module for identifying an input to the wearable device (103). For example, the touch sensor module may include at least one of a force sensor or a touch sensor for identifying the input (or touch input) to the wearable device (103). According to one embodiment, the sensor (203) of the wearable device (103) may further include an acceleration sensor and / or a gyro sensor for identifying a movement of the wearable device (103). Although examples of the sensor (203) included in the wearable device (103) are described in FIG. 2, the embodiments of the present disclosure are not limited thereto. For example, the wearable device (103) may further include a barometer for measuring the external pressure of the wearable device (103), a heart rate monitor (HRM) for measuring the pulse, an electrocardiogram (ECG), and a bioelectrical impedance analysis (BIA).

[0056] According to one embodiment, the sensor (203) of the wearable device (103) may include a Hall sensor or an integrated circuit (IC) that processes data obtained from the Hall sensor. Using the Hall sensor or the IC, the wearable device (103) may identify whether a lid (e.g., the second housing part (420) of FIG. 4A) of a charging device (e.g., the electronic device (403) of FIG. 4A) for charging the wearable device (103) is opened or closed when the charging device is located inside the charging device. However, by using a proximity sensor including a first light-emitting diode emitting infrared light having a first wavelength according to the present disclosure, a second light-emitting diode emitting infrared light having a second wavelength, and a photodetector, the wearable device (103) can accurately identify whether the lid of the charging device (e.g., the second housing part (420) of FIG. 4A) is opened and closed, even without including the Hall sensor or the IC. In one example, the wearable device (103) may not include the Hall sensor or the IC.

[0057] According to one embodiment, the wearable device (103) may include an output means for outputting information. For example, the wearable device (103) may include a speaker (205) for outputting acoustic information (e.g., an acoustic signal or sound). For example, the wearable device (103) may include a nozzle used as a path for the acoustic information output from the speaker (205). For example, the nozzle may be referred to as an acoustic port. For example, the nozzle may be a path through which the wearable device (103) is supported within the body part when the wearable device (103) is worn on the body part, and through which sound output from the wearable device (103) passes. For example, the nozzle may be connected to an ear tip. For example, the ear tip may represent a member that comes into contact with the body part.

[0058] In FIG. 2, a wearable device (103) including a speaker (205) for outputting acoustic information is illustrated, but the embodiments of the present disclosure are not limited thereto. For example, the wearable device (103) may include an actuator (or motor) for providing vibration-based haptic feedback.

[0059] According to one embodiment, the wearable device (103) may include an emitter (207). For example, unlike the proximity sensor of the sensor (203), the emitter (207) may emit visible light. For example, the emission direction of the visible light may be different from the emission direction of infrared light emitted by the proximity sensor of the sensor (203). As a non-limiting example, the visible light may be emitted in a first direction, and the infrared light may be emitted in a second direction opposite to the first direction. In the present disclosure, emitting light (e.g., visible light, infrared light) toward a specific direction may be understood as emitting the light for a range including the specific direction. For example, within the range, the specific direction may indicate a direction in which the amount (or intensity) of light is the highest. For example, the light emitting unit (207) may be referred to as an LED (light emitting diode) indicator or indicator.

[0060] For example, the wearable device (103) can control the light emission of the light emitting unit (207) according to the location of the wearable device (103) identified using the sensor (203). For example, the wearable device (103) can identify, using the sensor (230), when the state (e.g., closed state and open state) of the electronic device (or charging device) for charging changes while the wearable device (103) is positioned within the electronic device for charging, or when the wearable device (103) is positioned on an external object (e.g., a desk). For example, the wearable device (103) can control the light emitting unit (207) to emit visible light having a light emission pattern determined according to the location of the wearable device (103).

[0061] Alternatively, for example, the wearable device (103) may control the light emission of the light emitting unit (207) according to an event. For example, the wearable device (103) may control the light emitting unit (207) to emit visible light having a light emission pattern determined according to an event in which the start of charging is detected when the wearable device (103) is positioned within the electronic device (or charging device) for charging the wearable device (103). For example, the wearable device (103) may control the light emitting unit (207) to emit visible light having a light emission pattern determined according to an event in which the wearable device (103) and the electronic device (101), which is a source terminal that provides the sound information, are paired. For example, the pairing may include the wearable device (103) establishing a communication connection with the electronic device (101) using the communication circuit (209).

[0062] In the above examples, cases where the light emitting unit (207) emits light are described, but the present disclosure is not limited thereto. The wearable device (103) can visually inform the user of the wearable device (103) of the location, connection status, or status of the charging device on which the wearable device (103) is located (e.g., closed state or open state) by emitting visible light using the light emitting unit (207).

[0063] According to one embodiment, the communication circuit (209) of the wearable device (103) may include hardware for supporting transmission and / or reception of electrical signals between the wearable device (103) and the electronic device (101). The communication circuit (209) may include, for example, at least one of a modem, an antenna, and an optical / electronic (O / E) converter. The communication circuit (209) may support transmission and / or reception of electrical signals based on various types of communication means, such as Ethernet, Bluetooth, Bluetooth low energy (BLE), ZigBee, long term evolution (LTE), and 5G new radio (NR). Specific details regarding the communication circuit (209) of FIG. 2 may be substantially identical to the communication module (190) and / or antenna module (197) of FIG. 1.

[0064] Although not illustrated in FIG. 2, according to one embodiment, the wearable device (103) may include a microphone for acquiring a sound (e.g., a voice signal) input from the outside of the wearable device (103). For example, the microphone may include a plurality of microphones. The microphone may include an internal microphone and an external microphone that are identified based on a direction in which the voice signal is acquired. For example, the internal microphone may include at least one microphone for acquiring the voice signal from a third direction toward the body part when the wearable device (103) is worn on the body part. For example, the external microphone may include at least one microphone for acquiring the voice signal from a fourth direction different from the third direction when the wearable device (103) is worn on the body part. For example, the external microphone may include a main microphone and a sub microphone for acquiring the voice signal from the fourth direction. For example, the main microphone may be used to acquire a voice signal from the fourth direction. For example, the auxiliary microphone may be used to acquire a voice signal auxiliary to the main microphone when the main microphone is not in use, or when the quality of the voice signal acquired from the main microphone is below a specified quality. For example, the microphone may be an electronic condenser microphone (ECM) or a micro electro mechanical system (MEMS), but is not limited thereto. The specific details of the microphone of FIG. 2 may be substantially identically applied to the details of the input module (150) of FIG. 1.

[0065] Additionally, although not illustrated in FIG. 2, according to one embodiment, the wearable device (103) may include a module for power supply. For example, the wearable device (103) may include a battery. The specific details regarding the battery may be substantially identical to those regarding the battery (189) of FIG. 1.

[0066] Additionally, the wearable device (103) may include a memory (211). The memory (211) may include a hardware component for storing data and / or instructions input to and / or output from the processor (201). The memory (211) may include, for example, a volatile memory such as a random-access memory (RAM), and / or a non-volatile memory such as a read-only memory (ROM). The volatile memory may include, for example, at least one of a dynamic RAM (DRAM), a static RAM (SRAM), a cache RAM, and a pseudo SRAM (PSRAM). The non-volatile memory may include, for example, at least one of a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), a flash memory, a hard disk, a compact disc, and an embedded multimedia card (eMMC). The specific details of the memory (211) of Fig. 2 can be applied substantially identically to the details of the memory (130) of Fig. 1.

[0067] According to one embodiment, one or more instructions (or commands) representing operations and / or actions to be performed on data by the processor (201) of the wearable device (103) may be stored in the memory (211) of the wearable device (103). A set of one or more instructions may be referred to as a program, firmware, an operating system, a process, a routine, a sub-routine, and / or an application. Hereinafter, when an application is installed in an electronic device (e.g., a wearable device (103)), it may mean that one or more instructions provided in the form of an application are stored in the memory (211), and that the one or more applications are stored in a format executable by the processor of the electronic device (e.g., a file having an extension designated by the operating system of the wearable device (103)). According to one embodiment, the wearable device (103) may perform the operations of FIG. 5 by executing one or more instructions stored in the memory (211). For example, the one or more instructions, when executed by the processor (201), may cause the wearable device (103) to perform at least some of the operations of FIG. 5.

[0068] As described above, specific details regarding the structure of the wearable device (103) are exemplified and described with reference to FIGS. 3A to 3C below. In addition, specific details regarding the structure of an electronic device (or charging device) for charging the wearable device (103) are exemplified and described with reference to FIGS. 4A and 4B below.

[0069] Figure 3a illustrates an example of a sensor and emitter included in a housing of a wearable device.

[0070] FIG. 3A illustrates an example of a wearable device (103) of FIG. 2. For example, FIG. 3A illustrates an example (300-1) that illustrates at least a portion of a housing of a wearable device (103) of FIG. 2 as viewed in a first direction (e.g., +z direction). Further, for example, FIG. 3A illustrates an example (300-2) that illustrates at least a portion of a housing of a wearable device (103) of FIG. 2 as viewed in a second direction (e.g., -z direction) opposite to the first direction.

[0071] For example, the wearable device (103) may include the housing forming the exterior of the wearable device (103). For example, the housing may include a first housing portion (310) and a second housing portion (320). For example, the first housing portion (310) may include a portion to be worn on a body portion of a user (e.g., an ear portion or an external auditory canal portion) when the wearable device (103) is worn on the body portion of the user. For example, the second housing portion (320) may include a portion that is connected to the first housing portion (310) and extends from the first housing portion (310). For example, the first housing portion (310) may be referred to as a first case or a rear housing. For example, the second housing portion (320) may be referred to as a second case or a front housing.

[0072] Referring to example (300-1), the wearable device (103) may include a nozzle (311) included in the first housing portion (310). For example, the nozzle (311) may be used as a path for sound information output from a speaker (e.g., speaker (205) of FIG. 2) included in the housing of the wearable device (103), and may represent a portion that comes into contact with a body part of the user (or a portion that is connected to an ear tip that comes into contact). For example, the second housing portion (320) fastened to the first housing portion (310) may include a stem portion (321). For example, the stem portion (321) may include at least a portion of the second housing portion (320). For example, the stem portion (321) may include a portion that extends from the second housing portion (320) in a specific direction (e.g., the y-axis direction). For example, at least some of the sensors (203) of FIG. 2 (e.g., force sensor, touch sensor) may be included within the stem portion (321). Accordingly, the wearable device (103) may identify (or acquire, recognize) a user's touch input to the stem portion (321).

[0073] For example, the stem portion (321) may include a periphery (321a). For example, the periphery (321a) of the stem portion (321) may be formed on the exterior of the wearable device (103) along the specific direction (e.g., the y-axis direction). As a non-limiting example, the periphery (321a) may be a protruding portion on the exterior of the wearable device (103). For example, the wearable device (103) may include a light-emitting portion (323) positioned at least partially along the periphery (321a) of the stem portion (321). For example, the light-emitting portion (323) may be an example of the light-emitting portion (207) of FIG. 2. For example, the light-emitting portion (323) may emit visible light toward the first direction (e.g., the +z direction). For example, the light emitting portion (323) may be referred to as a blade light.

[0074] For example, the area of ​​the edge (321a) where the light-emitting portion (323) is positioned can be determined so that the light-emitting portion (323) can be recognized from the outside of the electronic device when the wearable device (103) is positioned (or installed) within an electronic device (or charging case device) for charging the wearable device (103). For specific details regarding the area of ​​the edge (321a) where the light-emitting portion (323) is positioned, reference may be made to FIGS. 4A and 4B below.

[0075] Referring to example (300-2), the first housing portion (310) of the wearable device (103) may include a sensor (313). For example, the sensor (313) may be an example of the sensor (203) of FIG. 2. For example, the sensor (313) may represent a proximity sensor. For example, the sensor (313) may be disposed in an area within the first housing portion (310) that is different from an area within the first housing portion (310) where the nozzle (311) is disposed. For example, the sensor (313) may include a first light-emitting diode (313a), a second light-emitting diode (313b), and a photodetector diode (313c). For example, the first light-emitting diode (313a) may emit a first infrared ray having a first wavelength. For example, the first wavelength may be referred to as a short wavelength. For example, the second light-emitting diode (313b) can emit second infrared light having a second wavelength longer than the first wavelength. For example, the second wavelength can be referred to as a long wavelength. For example, the light-receiving diode (313c) can receive first light associated with the first infrared light having the first wavelength and second light associated with the second infrared light having the second wavelength. For example, the first light can include light reflected from the first infrared light toward an external object. For example, the second light can include light reflected from the second infrared light toward an external object. For example, the first infrared light and the second infrared light can be emitted in a second direction (e.g., a -z direction) opposite to the first direction (e.g., a +z direction). In the above example, the first light emitting diode (313a) and the second light emitting diode (313b) of the sensor (313) may include light emitting diodes (LEDs) or vertical cavity surface emitting lasers (VCSELs).For example, the sensor (313) may include a first VCSEL that emits short wavelengths and a second VCSEL that emits long wavelengths. In the present disclosure, the first light-emitting diode (313a) may be referred to as a first light-emitting unit, and the second light-emitting diode (313b) may be referred to as a second light-emitting unit.

[0076] For example, the sensor (313) may be disposed in an area of ​​the first housing portion (310). For example, the area of ​​the first housing portion (310) where the sensor (313) is disposed may be determined so that the lid of the electronic device (103) can be detected when the wearable device (103) is positioned within an electronic device (or charging device) for charging the wearable device (103). Specific details regarding the area of ​​the first housing portion (310) where the sensor (313) is disposed may be referenced to FIGS. 4A and 4B below.

[0077] Figures 3b and 3c illustrate examples of exploded perspective views of a housing of a wearable device.

[0078] FIG. 3B illustrates an example of an exploded perspective view of a second housing portion (320) of the wearable device (103) of FIG. 3A. For example, the second housing portion (320) may include a stem portion (321) and at least a portion (325) of a head portion. For example, the head portion may include at least a portion (325) of the second housing portion (320) and the first housing portion (310). For example, the stem portion (321) may extend from the head portion and be formed to be elongated along a specific direction.

[0079] For example, the second housing part (320) may include a light emitting part (323), a flexible printed circuit board (FPCB) (331) supporting the light emitting part (323), a main FPCB (333), a system in package (SIP) (335), and a bracket (337).

[0080] For example, the second housing portion (320) may include a bracket (337) for supporting hardware components included in the wearable device (103). For example, the SIP (335) and the main FPCB (333) may be placed on the bracket (337). For example, the SIP (335) may include the processor (201) of FIG. 2. For example, the SIP (335) may include the communication circuit (209) of FIG. 2. For example, the SIP (335) may include the memory (211) of the wearable device (103), although not shown in FIG. 2.

[0081] For example, the second housing portion (320) may include a main FPCB (333) on which hardware components and / or other circuits such as an FPCB (331) are placed. For example, the FPCB (331) may be placed on the main FPCB (333).

[0082] For example, the FPCB (331) and the main FPCB (333) can be used to connect (or electrically connect) the light emitting portion (323) and the SIP (335). For example, the light emitting portion (323) can be placed on the FPCB (331). For example, the light emitting portion (323) can be placed along the edge (321a) of the stem portion (321) of the second housing portion (320) by being placed on the FPCB (331). For example, the light emitting portion (323) can be visible to the user from the outside of the second housing portion (320) (or the outside of the wearable device (103)).

[0083] For example, the second housing portion (320) may further include a port (320a) for charging. For example, the second housing portion (320) may include a port (320a) at one end of the stem portion (321). In FIG. 3B, a port (320a) for wired charging of a battery (not shown) of the wearable device (103) is illustrated, but the present disclosure is not limited thereto. For example, the wearable device (103) (or the second housing portion (320)) may further include a coil (or antenna) for wireless charging, or may include one instead of the port (320a).

[0084] FIG. 3C illustrates an example of an exploded perspective view of a first housing portion (310) of the wearable device (103) of FIG. 3A. For example, the first housing portion (310) may include at least another portion of the head portion. For example, the head portion may include at least a portion (325) of the second housing portion (320) of FIG. 3B and the first housing portion (310).

[0085] For example, the first housing portion (310) may include a nozzle (311) that is a path through which sound information output from a speaker (not shown) passes. Although not shown in FIG. 3C, the nozzle (311) may be connected to an eartip. For example, the eartip may include a portion that comes into contact with a body part of the user (e.g., an ear part or an external auditory canal) when the wearable device (103) is worn by the user.

[0086] For example, the first housing portion (310) may include a sensor window (315), a sensor (313), a PCB (317) on which the sensor (313) is placed, and a main PCB (319).

[0087] For example, the main PCB (319) may include a PCB that at least partially surrounds the interior of the first housing portion (310). In FIG. 3C, an example is shown in which a PCB (317) is placed on the main PCB (319), but the present disclosure is not limited thereto. For example, in addition to the PCB (317), other hardware components or circuits may be placed on the main PCB (319).

[0088] For example, the PCB (317) may be a PCB on which a sensor (313) is placed. For example, the sensor (313) may be connected (or electrically connected) to the SIP (335) of FIG. 3B by being placed on the PCB (317).

[0089] For example, the sensor window (315) may be positioned in an area of ​​the exterior of the first housing portion (310) that is positioned above the sensor (313). For example, the sensor window (315) may be used to cover the sensor (313) from the outside of the wearable device (103) (or the outside of the first housing portion (310)). For example, the sensor window (315) may be formed so that infrared rays emitted from the sensor (313) and light related to the infrared rays (or light reflected by the infrared rays from an external object) may pass through.

[0090] FIGS. 4A and 4B illustrate examples of electronic devices for charging wearable devices and states of the electronic devices when the wearable devices are positioned inside the electronic devices.

[0091] FIG. 4A illustrates an example (400) of an electronic device (403) for charging a wearable device (103) of FIGS. 2 and 3A to 3C, and examples (400-1, 400-2) of states (e.g., closed state and open state) of the electronic device (403). Examples (400-1, 400-2) illustrate states of the electronic device (403) as viewed in the +z direction. For example, the electronic device (403) for charging the wearable device (103) may be referred to as a case of the wearable device (103), a charging device of the wearable device (103), or a cradle.

[0092] Referring to example (400) of FIG. 4A, the electronic device (403) may include a housing forming the exterior of the electronic device (403). For example, the housing may include a first housing part (410) and a second housing part (420) movably coupled to the first housing part (410) between the closed state and the open state. For example, the first housing part (410) may be referred to as a body. For example, the second housing part (420) may be referred to as a lid.

[0093] For example, the first housing part (410) may include a space (407) capable of accommodating the wearable device (103). For example, the first housing part (410) may be opaque so that the interior of the electronic device (403) cannot be viewed from the outside of the electronic device (403). For example, the first housing part (410) may be formed of the opaque material. In contrast, the second housing part (420) may be transparent so that the interior (or the space (407)) of the electronic device (403) can be viewed from the outside of the electronic device (403). For example, the second housing part (420) may be formed of the transparent material. The transparency of the second housing part (420) may indicate that the space (407) between the second housing part (420) and the first housing part (410) is visible from the outside of the electronic device (403). As a non-limiting example, the second housing part (420) may also be semi-transparent.

[0094] For example, the electronic device (403) may include a space (407) in which the wearable device (103) is placed (or, settled) within the electronic device (403). For example, the wearable device (103) may be charged by being placed within the space (407) of the electronic device (403). For example, the electronic device (403) may include an electrode for charging in at least a portion of the space (407). For example, the electrode of the space (407) may be in contact with the port (320a) of the wearable device (103) of FIG. 3B. For example, the electrode may be used to provide power to the battery of the wearable device (103) from a battery (not shown) of the electronic device (403) through the port (320a). Although structures for wired charging are illustrated in FIGS. 3B and 4A, the present disclosure is not limited thereto. For example, the electronic device (403) may also include a structure for wireless charging of a wearable device (103).

[0095] For example, the first housing part (410) may include a light emitting portion (413). For example, the light emitting portion (413) may be positioned so that it can be recognized when the first housing part (410) is viewed in a specific direction (e.g., +z direction). For example, the light emitting portion (413) may be used to provide battery information of the battery of the electronic device (403). For example, the light emitting portion (413) may be used to provide battery information of the wearable device (103) when the wearable device (103) is positioned within the space (407). As a non-limiting example, the first housing part (410) may include a plurality of light emitting portions. For example, the plurality of light emitting portions may include a first light emitting portion and a second light emitting portion. In one example, the first light emitting unit may be used to provide battery information of the electronic device (403), and the second light emitting unit may be used to provide battery information of the wearable device (103). In one example, the first light emitting unit may be used to provide battery information of the wearable device (103-1), and the second light emitting unit may be used to provide battery information of the wearable device (103-2). For example, the wearable device (103-1) may be an example of a wearable device (103) to be worn on a specific body part (e.g., the left ear) of a user. For example, the wearable device (103-2) may be an example of a wearable device (103) to be worn on another specific body part (e.g., the right ear) of a user.

[0096] FIG. 4A illustrates an example (400-1) in which wearable devices (103-1, 103-2) are positioned within a space (407) of an electronic device (403), and the electronic device (403) is in an open state. The open state may indicate a state in which the second housing part (420) is at least partially separated from the first housing part (410). In FIG. 4A, for convenience of explanation, a state in which the second housing part (420) is completely separated from the first housing part (410) is illustrated, but the present disclosure is not limited thereto.

[0097] Referring to example (400-1), the wearable device (103-1) and the wearable device (103-2) may be positioned within the space (407) of the electronic device (403), respectively. For example, when the wearable device (103-1) is positioned within the space (407) of the electronic device (403), the light-emitting unit (323-1) of the wearable device (103-1) may be positioned so as to be visible from the outside of the electronic device (403). For example, when the wearable device (103-2) is positioned within the space (407) of the electronic device (403), the light-emitting unit (323-2) of the wearable device (103-2) may be positioned so as to be visible from the outside of the electronic device (403). Referring to the above, at least a portion of the area where the light emitting portion (323) of the wearable device (103) is positioned can be determined so as not to be visually obscured by the first housing part (410) of the electronic device (403) when the wearable device (103) is positioned within the space (407) of the electronic device (403) for charging.

[0098] FIG. 4A illustrates an example (400-2) in which wearable devices (103-1, 103-2) are positioned within a space (407) of an electronic device (403), and the electronic device (403) is in a closed state. The closed state may indicate a state in which the second housing part (420) is in complete contact with the first housing part (410). Although not illustrated in FIG. 4A, the second housing part (420) and the first housing part (410) may be brought into contact with each other using a conductive portion having magnetism.

[0099] Referring to example (400-2), wearable devices (103-1, 103-2) may be placed in a space (407) inside an electronic device (403). In example (400-2), the light-emitting portions of each of the wearable devices (103-1, 103-2) may emit light. For example, the light-emitting portion (323-1) of the wearable device (103-1) and the light-emitting portion (323-2) of the wearable device (103-2) may emit visible light when changed from the open state to the closed state. When the light emitting unit (323-1) of the wearable device (103-1) and the light emitting unit (323-2) of the wearable device (103-2) emit light in the above closed state, the visible light emitted from each of the light emitting units (323-1) and the light emitting unit (323-2) can be recognized by the user from the outside of the electronic device (403). In other words, the user can recognize the visible light emitted by the light emitting units even when the electronic device (403) is in the closed state because the visible light passes through the transparent second housing part (420). Additionally, since the second housing part (420) is transparent, even if the wearable devices (103-1, 103-2) do not emit visible light through the light-emitting parts (323-1, 323-2), the wearable devices (103-1, 103-2) can be recognized by the user from the outside of the electronic device (403).

[0100] FIG. 4B illustrates examples (400-3, 400-4) of an electronic device (403) and states (e.g., closed state and open state) of the electronic device (403) for charging the wearable device (103) of FIG. 2 and FIG. 3A to FIG. 3C. Examples (400-3, 400-4) illustrate states of the electronic device (403) as viewed in the -x direction of FIG. 4A.

[0101] Example (400-3) illustrates a wearable device (103-1) positioned within a space (407) of an electronic device (403) within the open state of the electronic device (403). In FIG. 4B, the wearable device (103-1) is illustrated as being positioned within the space (407), but the present disclosure is not limited thereto. For example, a wearable device (103-2) may also be positioned within the space (407) of the electronic device (403).

[0102] Referring to example (400-3), the wearable device (103-1) can control the light emission of the light emitting unit (323-1) using the sensor (313). For example, the wearable device (103-1) can emit infrared rays (431) and receive light (433) related to the infrared rays (431) using the sensor (313). For example, the wearable device (103-1) can identify a value representing the light quantity of the light (433). For example, the wearable device (103-1) can use the value representing the light quantity of the light (433) to recognize that the electronic device (403) (or the second housing part (420) of the electronic device (403)) does not recognize the wearable device (103-1) and that the wearable device (103-1) is not in contact with an external object (or air). Accordingly, the wearable device (103-1) can identify that the electronic device (403) in which the wearable device (103-1) is positioned is in the open state (or the second housing part (420) is in the open state). For example, the wearable device (103-1) can periodically measure the value representing the amount of light (433) to identify that the state of the electronic device (403) (or the second housing part (420)) is changed from the closed state to the open state (e.g., changed from example (400-4) to example (400-3)), thereby emitting light from the light emitting unit (323-1).

[0103] Referring to example (400-4), the wearable device (103-1) can control the light emission of the light emitting unit (323-1) using the sensor (313). For example, the wearable device (103-1) can emit infrared rays (431) and receive light (433) related to the infrared rays (431) using the sensor (313). For example, the wearable device (103-1) can identify a value representing the light quantity of the light (433). For example, the wearable device (103-1) can recognize the second housing part (420) of the electronic device (403) using the value representing the light quantity of the light (433). Accordingly, the wearable device (103-1) can identify that the electronic device (403) in which the wearable device (103-1) is positioned is in the closed state (or the second housing part (420) is in the closed state). For example, the wearable device (103-1) can emit light from the light emitting unit (323-1) by periodically measuring the value representing the light amount of the light (433) to identify that the state of the electronic device (403) (or the second housing part (420)) is changed from the open state to the closed state (e.g., changed from example (400-3) to example (400-4)). For specific details on how the wearable device (103-1) controls the light emission of the light emitting unit (323-1) using the sensor (313), reference may be made to FIG. 5 below.

[0104] The emission pattern of visible light emitted through the light emitting portion (323-1) in example (400-4) may be different from the emission pattern of visible light emitted through the light emitting portion (323-1) in example (400-3). Specific examples of the above-described emission pattern may be referenced to FIGS. 8A to 8D below.

[0105] As described above, the wearable device (103-1) can identify an object within a specified distance using the sensor (313). As a non-limiting example, the specified distance may be about 10 mm (millimeters). As in example (400-4), when the wearable device (103-1) is positioned within the electronic device (403) (or within the space (407) of the electronic device (403)) and the electronic device (403) is in the closed state, the distance between the second housing part (420) of the electronic device (403) and the sensor (313) may be shorter than the specified distance. As a non-limiting example, within the closed state, the distance may be about 10 mm or less (e.g., about 5 mm). In contrast, as in example (400-3), when the wearable device (103-1) is positioned within the electronic device (403) (or within the space (407) of the electronic device (403)) and the electronic device (403) is in the open state, the distance between the second housing part (420) of the electronic device (403) and the sensor (313) may be longer than the specified distance. As a non-limiting example, in the open state, the distance may exceed about 10 mm.

[0106] In FIGS. 4A and 4B , the wearable device (103) and the electronic device (403) for charging the wearable device (103) are described as being distinct, but the present disclosure is not limited thereto. For example, the wearable device (103) and the electronic device (403) (or charging device) may be referred to as a single device (or system) including the wearable device (103) and the electronic device (403) (or charging device).

[0107] Referring to FIGS. 2 to 4B, the wearable device (103) can control the light emission of the light emitting portion (323) of the wearable device (103) by using the sensor (313) to identify the location of the wearable device (103) or an object in contact with (or adjacent to) the wearable device (103). By forming the second housing part (420) of the electronic device (403) for charging the wearable device (103) with a transparent material, the wearable device (103) can identify the second housing part (420) as distinct from other objects (e.g., a desk).

[0108] Fig. 5 illustrates an example of an operational flow for a method of controlling the light emission of a light emitting part of a wearable device using a sensor of the wearable device.

[0109] At least some of the methods of FIG. 5 may be performed by the wearable device (103) of FIG. 2. For example, at least some of the methods may be controlled by the processor (201) of the wearable device (103). In the embodiments described below, the operations may be performed sequentially, but are not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel.

[0110] Referring to FIG. 5, in operation (510), the wearable device (103) can receive first light related to infrared light having a first wavelength through a light-receiving diode (313c).

[0111] For example, the wearable device (103) can emit infrared light using the sensor (313). For example, the wearable device (103) can emit infrared light having a first wavelength using the first light-emitting diode (313a) of the sensor (313). For example, the wearable device (103) can receive the first light related to the infrared light having the first wavelength through the light-receiving diode (313c) of the sensor (313). For example, the first light can include light in which the infrared light having the first wavelength is reflected by an external object.

[0112] In operation (520), the wearable device (103) can receive second light related to infrared light having a second wavelength through a light-receiving diode (313c).

[0113] For example, the wearable device (103) can emit infrared light using the sensor (313). For example, the wearable device (103) can emit infrared light having a second wavelength using the second light-emitting diode (313b) of the sensor (313). For example, the second wavelength may be longer than the first wavelength. For example, the wearable device (103) can receive the second light related to the infrared light having the second wavelength through the photodetector diode (313c) of the sensor (313). For example, the second light may include light that is infrared light having the second wavelength reflected by an external object.

[0114] For example, the time at which the infrared ray having the first wavelength is emitted may be different from the time at which the infrared ray having the second wavelength is emitted. For example, the wearable device (103) may emit infrared ray having the first wavelength at a first time, and emit infrared ray having the second wavelength at a second time following the first time. In one example, the wearable device (103) may repeatedly emit infrared ray having the first wavelength and infrared ray having the second wavelength. For example, the wearable device (103) may emit infrared ray having the first wavelength at a first time, emit infrared ray having the second wavelength at a second time, emit infrared ray having the first wavelength at a third time following the second time, and emit infrared ray having the second wavelength at a fourth time following the third time. For example, the first time and the third time may be included in the first cycle, and the second time and the fourth time may be included in the second cycle. In addition, for example, in order to more accurately distinguish infrared rays according to each wavelength, the wearable device (103) may emit infrared rays within a time interval set for each wavelength. For example, the wearable device (103) may repeatedly emit infrared rays having the first wavelength within the first time interval, repeatedly emit infrared rays having the second wavelength within the second time interval following the first time interval, and repeatedly emit infrared rays having the first wavelength within the third time interval following the second time interval.

[0115] In the above example, an example is described in which infrared rays having the first wavelength and infrared rays having the second wavelength are continuously emitted over time, but the present disclosure is not limited thereto. For example, the wearable device (103) may also stop (or cease) emitting infrared rays during a specified time interval between times at which infrared rays are emitted. For example, the wearable device (103) may emit infrared rays having the first wavelength at a first time, stop emitting the infrared rays during a specified time interval from the end of the first time, emit infrared rays having the second wavelength at a second time after the specified time interval from the first time, stop emitting the infrared rays during the specified time interval from the end of the second time, and emit infrared rays having the first wavelength at a third time after the specified time interval from the second time. Alternatively, for example, the wearable device (103) may emit infrared light having the first wavelength at a first time, emit infrared light having the second wavelength at a second time from the first time, and stop emitting light for a specified time interval from the end of the second time, and emit infrared light having the first wavelength at a third time after the specified time interval.

[0116] In one example, the wearable device (103) can adjust the time for emitting infrared light having the first wavelength, the time for emitting infrared light having the second wavelength, and the time for stopping the emission of infrared light, depending on the state of the wearable device (103). For example, the state of the wearable device (103) may include whether the wearable device (103) is located within the electronic device (403), whether the wearable device (103) is worn by a user, or whether the wearable device (103) is located on an external object (e.g., a pocket, a desk). For example, the wearable device (103) can increase the time for stopping the emission of infrared light when the wearable device (103) is located on an external object. For example, the wearable device (103) can increase the time for emitting infrared light having the first wavelength and the time for emitting infrared light having the second wavelength when the wearable device (103) is positioned within the electronic device (403) and the state of the electronic device (403) is in an open state. Conversely, the wearable device (103) can decrease the time for emitting infrared light having the first wavelength and the time for emitting infrared light having the second wavelength when the wearable device (103) is positioned within the electronic device (403) and the state of the electronic device (403) is in a closed state.

[0117] As described above, the infrared rays having the first wavelength and the infrared rays having the second wavelength can be received by the photodetector diode (313c) of the wearable device (103).

[0118] In operation (530), the wearable device (103) can obtain a first value representing the light quantity of the first light and a second value representing the light quantity of the second light. For example, the wearable device (103) can obtain the first value representing the light quantity of the first light received. For example, the wearable device (103) can obtain the second value representing the light quantity of the second light received. For example, each of the first value and the second value can be referred to as an analog to digital converter (ADC) value.

[0119] For example, the wearable device (103) can identify a ratio of the first value to the second value. For example, if the second value is 1.5 and the first value is 3, the ratio of the first value to the second value may be 2. The ratio may be used to identify an object in contact with (or adjacent to) the wearable device (103). For example, the ratio may be referred to as a ratio between the first value and the second value, a light reception information ratio, a state ratio, a state value, or a contact coefficient.

[0120] In operation (540), the wearable device (103) can control the light emission of the light emitting unit (323) based on the ratio of the first value to the second value and the first value.

[0121] For example, the wearable device (103) can distinguish (or recognize, identify) an external object in contact with (or adjacent to) the wearable device (103) based on the ratio of the first value to the identified second value and the first value. For example, examples of the ratio and the first value determined for each external object can be referenced to FIGS. 6A to 6C.

[0122] FIGS. 6A to 6C illustrate examples of graphs illustrating a method for identifying the location of a wearable device by using received information regarding light associated with a first infrared ray emitted by a first light-emitting diode of a sensor of the wearable device and a second infrared ray emitted by a second light-emitting diode.

[0123] Figures 6a to 6c illustrate examples of graphs (610, 620, 630, 640, 650, 660) that represent, for each external object, a first value representing the amount of light of the first light associated with the infrared ray having the first wavelength, a second value representing the amount of light of the second light associated with the infrared ray having the second wavelength, and a ratio between the first value and the second value (or a ratio of the first value to the second value). For example, the received information may include the first value, the second value, and the ratio of the first value to the second value.

[0124] Referring to FIGS. 6A to 6C, the horizontal axis of the graphs (610, 620, 630, 640, 650, 660) may represent the index of a sample that emits infrared light having the first wavelength and infrared light having the second wavelength and receives the first light and the second light, the left side of the vertical axis of the graphs (610, 620, 630, 640, 650, 660) may represent the size of an ADC value received by a photodetector diode (313c), and the right side of the vertical axis may represent the size of a ratio.

[0125] The graph (610) of Fig. 6a shows values ​​when a wearable device (103) (e.g., wireless earphones) is worn on the ears. Referring to the graph (610) of Fig. 6a, a first line (611) representing a first value of a first light related to infrared rays having the first wavelength (e.g., short wavelength), a second line (612) representing a second value of a second light related to infrared rays having the second wavelength (e.g., long wavelength), and a third line (613) representing a ratio of the first value to the second value are shown. For example, the graph (610) shows the first value, the second value, and the ratio when the wearable device (103) is in contact with (worn) on a body part (e.g., an ear part) of a user. The samples of the graph (610) may represent 10 users.

[0126] Referring to graph (610), the first line (611) may have a value between about 1000 and 1300, the second line (612) may have a value between about 80 and 130, and the third line (613) may have a value between about 10.5 and 12.5. In the above example, the average value of the first line (611) for the samples may be about 1150, the average value of the second line (612) for the samples may be about 100, and the average value of the third line (613) for the samples may be about 11.

[0127] Additionally, the graph (620) of FIG. 6A represents values ​​when the wearable device (103) (e.g., wireless earphones) is in contact with the skin. Referring to the graph (620) of FIG. 6A, the graph includes a first line (621) representing a first value of a first light associated with the infrared ray having the first wavelength, a second line (622) representing a second value of a second light associated with the infrared ray having the second wavelength, and a third line (623) representing a ratio of the first value to the second value. For example, the graph (620) illustrates the first value, the second value, and the ratio when the wearable device (103) is in contact with another body part of the user (e.g., the back of the hand). The samples of the graph (620) may represent 10 users.

[0128] Referring to graph (620), the first line (621) may have a value between about 3000 and 4000, the second line (622) may have a value between about 150 and 190, and the third line (623) may have a value between about 17 and 23. In the above example, the average value of the first line (621) for the samples may be about 3540, the average value of the second line (622) for the samples may be about 170, and the average value of the third line (623) for the samples may be about 21.

[0129] Referring to FIG. 6A, the wearable device (103) can identify that the wearable device (103) is in contact with (or worn, adjacent to) a body part of the user when the ratio of the first value to the second value exceeds a reference ratio (e.g., 10).

[0130] FIG. 6B illustrates values ​​when a wearable device (103) (e.g., wireless earphones) is positioned (or brought into contact with) an external object. Referring to the graph (630) of FIG. 6B, a first line (631) representing a first value of a first light associated with an infrared ray having a first wavelength, a second line (632) representing a second value of a second light associated with an infrared ray having a second wavelength, and a third line (633) representing a ratio of the first value to the second value are illustrated. For example, the graph (630) illustrates the first value, the second value, and the ratio when the wearable device (103) is positioned (or brought into contact with) a pocket of a pair of pants, which is an external object. The samples of the graph (630) may represent 10 pairs of pants.

[0131] Referring to graph (630), the first line (631) may have a value between about 1100 and 5800, the second line (632) may have a value between about 400 and 2200, and the third line (633) may have a value between about 2.2 and 3.6. In the above example, the average value of the first line (631) for the samples may be about 3760, the average value of the second line (632) for the samples may be about 1333, and the average value of the third line (633) for the samples may be about 2.8. Referring to the graph (630), the distribution of the values ​​of the first line (631) is formed broadly depending on the color and material of external objects (e.g., pants), but the size of the first value can exceed 1000, and the ratio can have a value between about 2.2 and 3.6.

[0132] Additionally, the graph (640) of FIG. 6B shows a first line (641) representing a first value of a first light associated with the infrared ray having the first wavelength, a second line (642) representing a second value of a second light associated with the infrared ray having the second wavelength, and a third line (643) representing a ratio of the first value to the second value. For example, the graph (640) shows the first value, the second value, and the ratio when the wearable device (103) is placed on a desk, which is an external object. The samples of the graph (640) may represent 10 desks.

[0133] Referring to graph (640), the first line (641) may have a value between about 1300 and 1500, the second line (642) may have a value between about 300 and 360, and the third line (643) may have a value between about 4.2 and 4.5. In the above example, the average value of the first line (641) for the samples may be about 1450, the average value of the second line (642) for the samples may be about 335, and the average value of the third line (643) for the samples may be about 4.3.

[0134] Referring to FIG. 6b, the wearable device (103) can identify that the wearable device (103) is in contact with (or adjacent to, placed on, or positioned) an external object when the ratio of the first value to the second value is less than or equal to the reference ratio (e.g., 10) (more specifically, when the ratio is less than 5), and the first value exceeds a second reference value (e.g., 1000) that exceeds the first reference value (e.g., 100).

[0135] FIG. 6C illustrates values ​​when a wearable device (103) (e.g., wireless earphones) is inserted into an electronic device (403) (e.g., a charging case) and a transparent cover (e.g., a second housing part (420)) is closed. Referring to a graph (650) of FIG. 6C, a first line (651) representing a first value of a first light associated with an infrared ray having the first wavelength, a second line (652) representing a second value of a second light associated with an infrared ray having the second wavelength, and a third line (653) representing a ratio of the first value to the second value are illustrated. For example, the graph (650) illustrates the first value, the second value, and the ratio when the wearable device (103) is in contact with (or adjacent to) the second housing part (420) of the electronic device (403). The above samples of the graph (650) may represent second housing parts (420) having a first color.

[0136] Referring to graph (650), the first line (651) may have a value between about 200 and 580, the second line (652) may have a value between about 80 and 220, and the third line (653) may have a value between about 2.2 and 2.8. In the above example, the average value of the first line (651) for the samples may be about 370, the average value of the second line (652) for the samples may be about 140, and the average value of the third line (653) for the samples may be about 2.6.

[0137] Additionally, the graph (660) of FIG. 6c includes a first line (661) representing a first value of a first light associated with the infrared ray having the first wavelength, a second line (662) representing a second value of a second light associated with the infrared ray having the second wavelength, and a third line (663) representing a ratio of the first value to the second value. For example, the graph (660) illustrates the first value, the second value, and the ratio when the wearable device (103) is in contact with (or adjacent to) the second housing part (420) of the electronic device (403). The samples of the graph (650) may represent second housing parts (420) having a second color.

[0138] Referring to graph (660), the first line (661) may have a value between about 390 and 530, the second line (662) may have a value between about 150 and 220, and the third line (663) may have a value between about 2.3 and 2.8. In the above example, the average value of the first line (661) for the samples may be about 450, the average value of the second line (662) for the samples may be about 180, and the average value of the third line (663) for the samples may be about 2.5.

[0139] Referring to FIG. 6C, the wearable device (103) can identify that the wearable device (103) is in contact with (or adjacent to) the second housing part (420) of the electronic device (403) when the ratio of the first value to the second value is less than or equal to the reference ratio (e.g., 10) and the first value is less than or equal to the second reference value (e.g., 1000). For example, the wearable device (103) can identify that the wearable device (103) is located within the electronic device (403) (or within the space (407)) and that the second housing part (430) (or the electronic device (403)) is in a closed state when the ratio is less than or equal to the reference ratio and the first value is less than or equal to the second reference value. Comparing FIG. 6b and FIG. 6c, the reception information for the second housing part (420) formed of a transparent material as described above in FIG. 4a and FIG. 4b can be distinguished from the reception information for an external object that comes into contact with the wearable device (103).

[0140] Referring to FIGS. 6A to 6C, the first value, the second value, and the ratio for various external objects that may come into contact with the wearable device (103) are illustrated, but the present disclosure is not limited thereto.

[0141] For example, when the wearable device (103) is in contact with (or adjacent to) the first housing part (410) of the electronic device (403) having a first color (e.g., silver), the first value may have a value between about 2100 and 3400, the second value may have a value between about 1100 and 1800, and the ratio may have a value between about 1.7 and 2.4. Also, for example, when the wearable device (103) is in contact with (or adjacent to) the first housing part (410) of the electronic device (403) having a second color (e.g., white), the first value may have a value between about 4900 and 7400, the second value may have a value between about 1800 and 2500, and the ratio may have a value between about 2.4 and 3. The wearable device (103) can identify the first housing part (410) of the electronic device (403) according to the same criteria as an external object (e.g., a pocket, a desk) (e.g., when the ratio is less than or equal to the reference ratio and the first value exceeds the second reference value).

[0142] For example, when the wearable device (103) is not in contact with (or not adjacent to) an external object (or when the second housing part (420) of the electronic device (403) is in an open state), the first value may have a value between about 5 and 9, the second value may have a value between about 2 and 4, and the ratio may have a value between about 1.2 and 2. The wearable device (103) may identify that it is not in contact with an external object or that the second housing part (420) of the electronic device (403) is in an open state when the ratio is less than or equal to the reference ratio (e.g., 10) and the first value is less than or equal to the first reference value (e.g., 100) that is less than the second reference value. Additionally, in one example, the wearable device (103) can identify that there is no contact with an external object or that the second housing part (420) of the electronic device (403) is in an open state when the ratio is less than or equal to the reference ratio (e.g., 10), the first value is less than or equal to the first reference value (e.g., 100) that is less than the second reference value, and the second value is less than or equal to the first reference value (e.g., 100). In other words, the wearable device (103) can further use the second value to identify that there is no contact with an external object or that the second housing part (420) of the electronic device (403) is in an open state.

[0143] Referring back to FIG. 5, the wearable device (103) can control the light emission of the light emitting unit (323) based on the ratio of the first value to the second value and the first value. As described above, the wearable device (103) can distinguish (or recognize, identify) an external object in contact with (or adjacent to) the wearable device (103) based on at least one of the ratio of the first value to the second value or the first value. Accordingly, the wearable device (103) can control the light emission of the light emitting unit (323).

[0144] For example, the wearable device (103) may detect that the wearable device (103) is located in the space (407) inside the electronic device (403), emit visible light for a specified period of time, and then, based on determining that the state of the electronic device (403) is open by determining the ratio of the first value to the second value that is less than or equal to the reference ratio and the first value that is less than or equal to the first reference value, stop emitting visible light using the light emitting unit (323). In the example, the wearable device (103) may detect that the wearable device (103) is located in the space (407) inside the electronic device (403) when charging is performed as power is supplied from the electronic device (403).

[0145] For example, the wearable device (103) may use the light emitting unit (323) to emit the visible light based on identifying that the state of the electronic device (403) has changed from the open state to the closed state by determining that the ratio of the first value to the second value is less than or equal to the reference ratio and greater than the first reference value, when the wearable device (103) is positioned in the space (407) inside the electronic device (403) and the state of the electronic device (403) is in the open state (or after it has stopped emitting the visible light). For example, the wearable device (103) may use the light emitting unit (323) to emit the visible light having the first emission pattern based on identifying that the state of the electronic device (403) has changed from the open state to the closed state.

[0146] For example, when the wearable device (103) identifies that the wearable device (103) is located in the space (407) inside the electronic device (403) and that the state of the electronic device (403) is the closed state, the wearable device (103) may change the mode of the wearable device (103) to a low power mode in which at least one function of the processor (201) is turned off. For example, the at least one function may include active noise cancellation (ANC) and an ambient sound listening function. Alternatively, for example, the wearable device (103) may lower the driving frequency of the processor (201) within the low power mode. Lowering the driving frequency of the processor (201) may include lowering the capability of the processor (201) or causing the processor (201) to operate slowly. In the above example, the wearable device (103) is described as changing the mode of the wearable device (103) to the low power mode when the wearable device (103) is located in the space (407) inside the electronic device (403) and the state of the electronic device (403) is identified as the closed state, but the present disclosure is not limited thereto. For example, the wearable device (103) may change the mode of the wearable device (103) to the low power mode when it detects that the wearable device (103) is located in the space (407) inside the electronic device (403) or when it detects that the wearable device (103) is taken off from a state worn by a user.

[0147] For example, a wearable device (103) located in a space (407) inside an electronic device (403) may, based on determining that the state of the electronic device (403) is changed from the closed state to the open state by emitting the visible light having the first light emitting pattern and then determining the first value that is less than or equal to the first reference value and the ratio of the first value to the second value is less than or equal to the reference ratio, emit the visible light having the second light emitting pattern using the light emitting unit (323). Alternatively, in one example, the wearable device (103) may use the light emitting unit (323) to emit visible light having the second light emitting pattern based on determining that the state of the electronic device (403) is changed from the closed state to the open state by determining that the first value is less than or equal to the first reference value and that the ratio of the first value to the second value is less than or equal to the reference ratio, and further determining that the second value is less than or equal to the first reference value.

[0148] In one example, the wearable device (103) may identify that the state of the electronic device (403) has changed from the open state to the closed state while emitting visible light having the second light emitting pattern through the light emitting unit (323) based on identifying that the state of the electronic device (403) has changed from the closed state to the open state. For example, the wearable device (103) may emit visible light having the second light emitting pattern through the light emitting unit (323) for a specified time period (e.g., 3 seconds), and then emit visible light having the first light emitting pattern through the light emitting unit (323) for a specified time period (e.g., 3 seconds). Alternatively, for example, the wearable device (103) may stop emitting the second light emitting pattern and emit visible light having the first light emitting pattern for a specified period of time (e.g., 3 seconds) based on identifying that the state of the electronic device (403) has changed from the open state back to the closed state while emitting visible light having the second light emitting pattern.

[0149] For example, the wearable device (103) can emit visible light having a third light emitting pattern using the light emitting unit (323) based on detecting that the wearable device (103) outside the electronic device (403) is located in the space (407) inside the electronic device (403). For example, the wearable device (103) can emit visible light having a third light emitting pattern using the light emitting unit (323) based on performing charging as power is provided from the electronic device (403).

[0150] In one example, while the wearable device (103) is positioned in the space (407) inside the electronic device (403) and the third light-emitting pattern is emitted, the wearable device (103) can identify that the state of the electronic device (403) has changed from the open state to the closed state. For example, the wearable device (103) can emit visible light having the third light-emitting pattern through the light-emitting unit (323) for a specified time period (e.g., 3 seconds), and then emit visible light having the first light-emitting pattern through the light-emitting unit (323) for a specified time period (e.g., 3 seconds). Alternatively, for example, the wearable device (103) can emit visible light having the third light-emitting pattern through the light-emitting unit (323) for a specified time period and then stop emitting (may not emit) visible light having the first light-emitting pattern. Alternatively, for example, the wearable device (103) may emit visible light having the first light emitting pattern through the light emitting unit (323) in a color (e.g., red, orange, yellow, or green) representing battery information of the wearable device (103) based on identifying that the state of the electronic device (403) has changed from the open state to the closed state while emitting visible light having the third light emitting pattern.

[0151] In one example, when the wearable device (103) is positioned in the space (407) inside the electronic device (403), the wearable device (103) can identify that the state of the electronic device (403) has changed from the closed state to the open state. In this case, the wearable device (103) can emit visible light having the second light emitting pattern through the light emitting unit (323) for a specified time period (e.g., 3 seconds) based on identifying that the state has changed from the closed state to the open state, and then emit visible light having the third light emitting pattern for a specified time period (e.g., 3 seconds). Alternatively, for example, the wearable device (103) may emit visible light having the second light emitting pattern through the light emitting unit (323) for a specified period of time (e.g., 3 seconds) based on identifying a change from the closed state to the open state, and then stop emitting (or may not emit) visible light having the third light emitting pattern for a specified period of time (e.g., 3 seconds).

[0152] For example, the wearable device (103) may use the light emitting unit (323) to emit visible light having a fourth light emitting pattern based on identifying that the wearable device (103) is in contact with an external object (e.g., a pocket, a desk) by determining the first value exceeding the second reference value exceeding the first reference value and the ratio being less than or equal to the reference ratio. For example, the wearable device (103) may change the mode of the wearable device (103) to a low power mode in which at least one function of the processor (201) is turned off, based on identifying that the wearable device (103) is in contact with the external object. For example, the at least one function may include active noise cancellation (ANC) and an ambient sound listening function. Alternatively, for example, the wearable device (103) may lower the operating frequency of the processor (201) within the low power mode. Lowering the operating frequency of the processor (201) may include lowering the capabilities of the processor (201) or causing the processor (201) to operate slowly.

[0153] For example, the wearable device (103) may use the light emitting unit (323) to emit visible light having a fifth light emitting pattern based on identifying that the wearable device (103) is in contact with the body part (e.g., ear part) of the user by determining the ratio exceeding the reference ratio.

[0154] For example, the wearable device (103) may use the light emitting unit (323) to emit visible light having a sixth light emitting pattern upon determining that the ratio is less than or equal to the reference ratio and determining that the wearable device (103) is paired with an external electronic device (e.g., the electronic device (101) of FIG. 2) that provides acoustic information.

[0155] In the examples described above, each of the first light-emitting pattern, the second light-emitting pattern, the third light-emitting pattern, the fourth light-emitting pattern, the fifth light-emitting pattern, and the sixth light-emitting pattern can be determined using the brightness of visible light, the time period during which visible light is emitted, and the color of visible light. Specific details related thereto are described below in FIGS. 8A to 8D.

[0156] As described above, the wearable device (103) may change the emission cycle of the infrared ray emitted using the sensor (313) according to the emission pattern of the visible light. For example, the wearable device (103) may adjust the time for emitting the infrared ray having the first wavelength, the time for emitting the infrared ray having the second wavelength, and the time for stopping the emission of the infrared ray, according to the state of the wearable device (103). For example, since the emission pattern of the visible light may be changed according to the state of the wearable device (103), the wearable device (103) may change the emission cycle of the infrared ray emitted using the sensor (313) according to the emission pattern of the visible light emitted using the light emitting unit (323).

[0157] Among the examples described above, an example in which a wearable device (103) is positioned inside an electronic device (403) for charging and visible light is emitted through a light-emitting portion (323) of the wearable device (103) while the state of the second housing part (420) of the electronic device (403) is changed is exemplified and described below with reference to FIG. 7.

[0158] FIG. 7 illustrates an example of a light-emitting portion of a wearable device emitting light while the wearable device is positioned within an electronic device for charging the wearable device. FIGS. 8A to 8D illustrate examples of light-emitting patterns of visible light emitted by the light-emitting portion of the wearable device.

[0159] FIG. 7 illustrates examples (701, 702, 703, 704, 705, 706) of emitting visible light through a light emitting portion (323) of a wearable device (103) while the wearable device (103) is positioned inside an electronic device (403) and the state of a second housing part (420) of the electronic device (403) is changed.

[0160] Referring to example (701), the wearable device (103) may be positioned inside the electronic device (403) for charging the wearable device (103). For example, the wearable device (103) may perform charging using power provided from the electronic device (403) as it is positioned inside the electronic device (403). For example, the wearable device (103) may emit a third light-emitting pattern (710) based on performing charging.

[0161] For example, the third light-emitting pattern (710) may be used to notify the user that the wearable device (103) is charged. For example, the third light-emitting pattern (710) may display a color according to the remaining battery amount of the wearable device (103). For example, the color may include red indicating a low level of the remaining battery amount, orange indicating a medium level of the remaining battery amount, yellow indicating a high level of the remaining battery amount, and green indicating a fully charged state of the battery of the wearable device (103). For example, the third light-emitting pattern (710) may be displayed for a specified time period (e.g., 3 seconds). Alternatively, in one example, the third light-emitting pattern (710) may be displayed for a time period that is adjusted according to the remaining battery amount. For example, the wearable device (103) may emit a third light-emitting pattern (710) that is displayed for a relatively longer period of time as the remaining battery amount of the wearable device (103) is high, and may emit a third light-emitting pattern (710) that is displayed for a relatively shorter period of time as the remaining battery amount of the wearable device (103) is low. For example, the third light-emitting pattern (710) may be displayed using a specified brightness during the time period. For example, the wearable device (103) may emit the third light-emitting pattern (710) through the light-emitting unit (323) to display battery information (e.g., remaining battery amount) of the wearable device (103). Alternatively, the electronic device (403) may display battery information (e.g., remaining battery amount) of the electronic device (403) using the light-emitting unit (413) of the electronic device (403).

[0162] Referring to example (702), the wearable device (103) located inside the electronic device (403) can stop emitting light or lower the brightness of the third light emitting pattern (710) using the light emitting unit (323) after displaying the third light emitting pattern (710) for the specified time period. In FIG. 7, an example is shown where the third light emitting pattern (710) completely stops emitting light and then changes from example (702) to example (703), but the present disclosure is not limited thereto.

[0163] Referring to example (703), the wearable device (103) is positioned inside the electronic device (403) for charging the wearable device (103), and based on identifying that the state of the electronic device (403) (or the second housing part (420)) has changed from the open state to the closed state, the wearable device (103) can emit visible light having a first light emitting pattern (720) using the light emitting unit (323).

[0164] For example, the wearable device (103) can emit infrared rays using the sensor (313) and identify the first value, the second value, and the ratio according to the emitted infrared rays. For example, when the state of the electronic device (403) is the open state, the wearable device (103) can determine that the ratio is less than or equal to the reference ratio and that the first value is less than or equal to the first reference value (and that the second value is less than or equal to the first reference value). Thereafter, when the state of the electronic device (403) is changed from the open state to the closed state, the wearable device (103) can determine that the ratio is less than or equal to the reference ratio and that the first value is less than or equal to the second reference value that exceeds the first reference value. Accordingly, the wearable device (103) can emit visible light having a first light emitting pattern (720) using the light emitting unit (323).

[0165] For example, the first light emitting pattern (720) may be used to notify the user that the electronic device (403) in which the wearable device (103) is positioned has changed from the open state to the closed state. For example, the first light emitting pattern (720) may refer to the example (810) of FIG. 8A.

[0166] Example (810) of Fig. 8a illustrates a first light-emitting pattern (720). The horizontal axis of example (810) represents time (unit: milliseconds), and the vertical axis represents brightness (unit: percent). Referring to example (810), the wearable device (103) may display white visible light for a designated time period (e.g., 3 seconds) to display the first light-emitting pattern (720). In addition, the wearable device (103) may emit visible light having a relatively bright brightness at a portion where the first light-emitting pattern (720) begins to be displayed during the designated time period, and may emit visible light having a relatively dark brightness as the designated time period elapses.

[0167] Referring to example (704), the wearable device (103) located inside the electronic device (403) can display the first light-emitting pattern (720) for the specified time period, and then stop emitting light or lower the brightness of the first light-emitting pattern (720) using the light-emitting unit (323). In FIG. 7, an example is shown where the first light-emitting pattern (720) completely stops emitting light, and then changes from example (704) to example (705), but the present disclosure is not limited thereto. For example, the wearable device (103) located inside the electronic device (403) can repeatedly display the first light-emitting pattern (720) and the third light-emitting pattern (710) at a specified cycle. For example, the wearable device (103) may display a first light-emitting pattern (720) for a specified period of time to inform the user that the wearable device (103) is charging, and may display a third light-emitting pattern (730) for another specified period of time to inform the user of the remaining battery capacity of the wearable device (103). Alternatively, for example, the wearable device (103) may emit visible light having the third light-emitting pattern (710) through the light-emitting unit (323) for a specified period of time (e.g., 3 seconds), and then emit visible light having the first light-emitting pattern (720) through the light-emitting unit (323) for a specified period of time (e.g., 3 seconds). Alternatively, for example, the wearable device (103) may display visible light having the third light-emitting pattern (710) through the light-emitting unit (323) for a specified period of time, and then stop emitting (may not emit) visible light having the first light-emitting pattern (720). Alternatively, for example, the wearable device (103) may emit visible light having a first light emitting pattern (720) in a color (e.g., red, orange, yellow, or green) representing battery information of the wearable device (103) based on identifying that the state of the electronic device (403) has changed from the open state to the closed state while emitting visible light having a third light emitting pattern (710).

[0168] Referring to example (705), the wearable device (103) is positioned inside the electronic device (403) for charging the wearable device (103), and based on identifying that the state of the electronic device (403) (or the second housing part (420)) has changed from the closed state to the open state, the wearable device (103) can emit visible light having a second light emitting pattern (730) using the light emitting unit (323).

[0169] For example, the wearable device (103) can emit infrared rays using the sensor (313) and identify the first value, the second value, and the ratio according to the emitted infrared rays. For example, when the state of the electronic device (403) is the closed state, the wearable device (103) can determine that the ratio is less than or equal to the reference ratio and that the first value is less than or equal to the second reference value that exceeds the first reference value. Thereafter, when the state of the electronic device (403) is changed from the closed state to the open state, the wearable device (103) can determine that the ratio is less than or equal to the reference ratio and that the first value is less than or equal to the first reference value (and the second value is less than or equal to the first reference value). Accordingly, the wearable device (103) can emit visible light having a second emission pattern (730) using the light emitting unit (323).

[0170] For example, the second light emitting pattern (730) may be used to notify the user that the electronic device (403) in which the wearable device (103) is positioned has changed from the closed state to the open state. For example, the second light emitting pattern (730) may refer to the example (820) of FIG. 8B.

[0171] Example (820) of Fig. 8b illustrates a second light-emitting pattern (730). Referring to example (820), the wearable device (103) may display white visible light for a specified time period (e.g., 3 seconds) to display the second light-emitting pattern (730). In addition, the wearable device (103) may emit visible light having a relatively dark brightness during the specified time period where the second light-emitting pattern (730) begins to be displayed, and may then emit visible light having a relatively bright brightness as the specified time period elapses. Example (820) of Fig. 8b is merely an example for convenience of explanation, and the present disclosure is not limited thereto. For example, the color of the second light-emitting pattern (730) may be different from the color of the first light-emitting pattern (720).

[0172] Referring to example (706), the wearable device (103) located inside the electronic device (403) can stop emitting light using the light emitting unit (323) after displaying the second light emitting pattern (730) for the specified time period.

[0173] In FIGS. 7, 8A, and 8B, examples of light emitting patterns are described as the wearable device (103) moves inside the electronic device (403) and the state of the electronic device (403) (or the state of the second housing part (420)) changes while being positioned inside the electronic device (403), but the present disclosure is not limited thereto. For example, when the wearable device (103) is positioned on (or comes into contact with) an external object (e.g., a desk, a pocket), the wearable device (103) can emit visible light having the fourth light emitting pattern using the light emitting unit (323). Alternatively, for example, when the wearable device (103) determines to be paired with an external electronic device (e.g., the electronic device (101) of FIG. 2, or a source terminal, a mother terminal) that provides sound information to be output from the wearable device (103), the wearable device (103) may emit visible light having the sixth light-emitting pattern using the light-emitting unit (323). Alternatively, for example, when the wearable device (103) receives a signal indicating that a search function for the wearable device (103) executed on the external electronic device connected to the wearable device (103) is executed, the wearable device (103) may emit visible light having the fourth light-emitting pattern (or the sixth light-emitting pattern) using the light-emitting unit (323).

[0174] For examples of the fourth light-emitting pattern and the sixth light-emitting pattern, reference may be made to example (830) of FIG. 8c and example (840) of FIG. 8d, respectively.

[0175] Example (830) of Fig. 8c illustrates the fourth light-emitting pattern. Referring to example (830), the wearable device (103) may display visible light of a red color to display the fourth light-emitting pattern. Additionally, the wearable device (103) may blink the visible light having the red color to display the fourth light-emitting pattern. For example, the blinking of the visible light having the red color may be performed regardless of time (or continuously). This may be to minimize the loss of the wearable device (103) and to inform the user of the location of the wearable device (103). At this time, the wearable device (103) may operate in a low-power mode in which at least one function of the processor (201) of the wearable device (103) is turned off in order to reduce power consumption of the wearable device (103). When the fourth light-emitting pattern is displayed, since the wearable device (103) is positioned on an external object (e.g., a desk, pocket, paper, laptop, etc.) and thus no sound information is output, the wearable device (103) may operate in the low power mode in which at least one function of the processor (201) is turned off.

[0176] Example (840) of FIG. 8D illustrates the sixth light-emitting pattern. Referring to example (840), the wearable device (103) may display visible light having a specific color (e.g., yellow or blue) for a designated time period (e.g., 5 seconds) to display the sixth light-emitting pattern. Additionally, the wearable device (103) may blink visible light having the specific color to display the sixth light-emitting pattern. In this case, the sixth light-emitting pattern may blink at the same brightness, unlike the fourth light-emitting pattern, whose brightness gradually changes while the visible light blinks.

[0177] Although not illustrated in FIGS. 8A to 8D , the fifth light-emitting pattern may be emitted using the light-emitting unit (323) based on identifying that the wearable device (103) is in contact with a body part (e.g., an ear part) of the user. For example, the fifth light-emitting pattern may change depending on a function being executed in the wearable device (103). For example, when the user is on a call using the wearable device (103), the fifth light-emitting pattern may blink based on a color (e.g., green) to indicate that the call is in progress at a designated cycle (e.g., every 3 seconds). For example, when the user is listening to music using the wearable device (103), the fifth light-emitting pattern may blink based on a designated cycle and color to indicate that the wearable device (103) is playing the music. However, the present disclosure is not limited thereto.

[0178] The brightness of visible light, the time period during which visible light is emitted, the period during which visible light is emitted, and the color of visible light of each light-emitting pattern exemplified in the present disclosure are merely exemplary for the convenience of explanation, and the present disclosure is not limited thereto. For example, the brightness of visible light, the time period during which visible light is emitted, the period during which visible light is emitted, and the color of visible light may be determined to be different values ​​from those described in the present disclosure.

[0179] As described above, the wearable device (103) according to the present disclosure can accurately identify an object in contact with (or adjacent to) the wearable device (103) by using light-emitting diodes (313a, 313b) that emit different wavelengths of one sensor (313). In addition, the electronic device (403) for charging the wearable device (103) according to the present disclosure can transparently form the second housing part (420) of the electronic device (403) that is positioned close to the sensor (313) of the wearable device (103) when the wearable device (103) is positioned in the space (407) inside the electronic device (403) for charging. Accordingly, the wearable device (103) according to the present disclosure, when positioned inside the electronic device (403), can accurately determine whether the two housing parts (420) of the electronic device (403) are closed or open.

[0180] The wearable device (103) according to the present disclosure can notify the user of the status of the wearable device (103) by using a light-emitting unit (323) that emits light (or visible light) that can be recognized by the user, based on identifying an object in contact with (or adjacent to) the wearable device (103) using a sensor (313) as described above. Accordingly, the present disclosure can provide a more convenient user experience by accurately identifying an object in contact with (or adjacent to) the wearable device (103) and providing the user with information accordingly.

[0181] 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.

[0182] As described above, the wearable device (103) may include a speaker for outputting audio information. The wearable device (103) may include a housing including a first housing portion (310) to be worn on a body part of a user and a second housing portion (320) fastened to the first housing portion (310). The first housing portion (310) may include a nozzle (311) used as a path for the audio information output from the speaker. The first housing portion (310) may include a sensor (313) including a first light-emitting portion (313a) that emits infrared light having a first wavelength, a second light-emitting portion (313b) that emits infrared light having a second wavelength longer than the first wavelength, and a light-receiving portion (313c) that receives light related to infrared light having the first wavelength and infrared light having the second wavelength. The second housing portion (320) may include a stem portion (321). The second housing portion (320) may include an emitter (323) that is arranged along the periphery of the stem portion (321) and emits visible light.

[0183] According to one embodiment, the infrared ray having the first wavelength emitted by the first light emitting portion (313a) and the infrared ray having the second wavelength emitted by the second light emitting portion (313b) may be emitted in a first direction. The visible light emitted by the light emitting portion (323) may be emitted in a second direction opposite to the first direction.

[0184] According to one embodiment, the first housing portion (310) may include a sensor window (315) disposed on the sensor (313) and covering the sensor (313) from the outside of the wearable device (103).

[0185] According to one embodiment, the wearable device (103) may include a memory (211) that stores instructions and includes one or more storage media. The wearable device (103) may include at least one processor (201) that includes a processing circuit. The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to receive, through the light receiving unit (313c), first light associated with infrared light having the first wavelength emitted by the first light emitting unit (313a). The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to receive, through the light receiving unit (313c), a second light associated with the infrared ray having the second wavelength emitted by the second light emitting unit (313b). The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to obtain a first value representing a light quantity of the first light and a second value representing a light quantity of the second light. The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to control light emission of the light emitting unit (323) based on the first value and a ratio of the first value to the second value.

[0186] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to stop emitting the visible light using the light emitting unit (323) based on identifying that the state of the charging device (403) is open by determining the ratio of the first value to the second value that is less than or equal to a reference ratio and the first value that is less than or equal to a first reference value after detecting that the wearable device (103) is located in a space inside the charging device (403). The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to use the light emitting unit (323) to emit the visible light based on determining that the state of the charging device (403) has changed from the open state to the closed state upon determining the first value that is less than or equal to the reference ratio and less than or equal to a second reference value that exceeds the first reference value, after the wearable device (103) has stopped emitting the visible light.

[0187] According to one embodiment, the charging device (403) may include a housing including a first housing part (410) and a second housing part (420) movably coupled to the first housing part (410) between the closed state and the open state. The first housing part (410) may include the space capable of accommodating the wearable device (103) and may be formed of an opaque material. The second housing part (420) may be formed of a transparent material such that the light emitting part (323) disposed on the stem portion of the wearable device (103) positioned within the space between the first housing part (410) and the second housing part (420) in the closed state is visible from the outside of the charging device (403).

[0188] According to one embodiment, based on identifying that the state of the charging device (403) has changed from the open state to the closed state, the visible light emitted using the light emitting unit (323) may have a first light emitting pattern. The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to, after emitting the visible light having the first light emitting pattern, emit the visible light having the second light emitting pattern using the light emitting unit (323) based on identifying that the state of the charging device (403) has changed from the closed state to the open state, by determining that the ratio of the first value to the second value is less than or equal to the reference ratio and the first value is less than or equal to the first reference value.

[0189] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit visible light having the second emission pattern using the light emitting unit (323) based on identifying that the state of the charging device (403) has changed from the closed state to the open state upon further determining that the second value is less than or equal to the first reference value.

[0190] According to one embodiment, each of the first light emitting pattern and the second light emitting pattern can be determined using the brightness of the visible light, the time period during which the visible light is emitted, and the color of the visible light.

[0191] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit visible light having a third emission pattern using the light emitting portion (323) based on detecting that the wearable device (103) is positioned in a space within the charging device (403).

[0192] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit visible light having a fourth emission pattern using the light emitting unit (323) based on identifying that the wearable device (103) is in contact with an external object by determining the ratio that is less than or equal to the reference ratio and the first value that exceeds the second reference value.

[0193] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to change a mode of the wearable device (103) to a low power mode in which at least one function of the at least one processor (201) is turned off, based on identifying that the wearable device (103) is in contact with the external object.

[0194] According to one embodiment, the at least one feature may include active noise cancellation (ANC).

[0195] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit visible light having a fifth emission pattern using the light emitting portion (323) based on identifying that the wearable device (103) is in contact with the body part of the user by determining that the ratio exceeds a reference ratio.

[0196] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit visible light having a sixth emission pattern using the light emitting unit (323) upon determining that the ratio is less than or equal to a reference ratio and determining that the wearable device (103) is paired with an external electronic device that provides the acoustic information.

[0197] According to one embodiment, the instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit infrared light having the first wavelength using the first light-emitting unit (313a) in a first period. The instructions, when individually or collectively executed by the at least one processor (201), may cause the wearable device (103) to emit infrared light having the second wavelength using the second light-emitting unit (313b) in a second period distinct from the first period.

[0198] As described above, the electronic device may include a wearable device (103). The electronic device may include a charging device (403) for the wearable device (103). The wearable device (103) may include a speaker for outputting audio information. The wearable device (103) may include a housing including a first housing portion (310) to be worn on a body part of a user and a second housing portion (320) fastened to the first housing portion (310). The first housing portion (310) may include a first light-emitting portion (313a) that emits infrared light having a first wavelength; a second light-emitting portion (313b) that emits infrared light having a second wavelength longer than the first wavelength; And it may include a sensor (313) including a light receiving portion (313c) that receives light related to infrared rays having the first wavelength and infrared rays having the second wavelength. The second housing portion (320) may include a stem portion and an emitter (323) that is arranged along the periphery of the stem portion (321) and emits visible light. The charging device (403) may include a housing including a first housing part (410) and a second housing part (420) that is movably coupled to the first housing part (410) between a closed state and an open state. The first housing part (410) may include a space that can accommodate the wearable device and may be formed of an opaque material. The second housing part (420) may be formed of a transparent material so that the light-emitting part (323) positioned in the stem portion of the wearable device (103) located within the space between the first housing part (410) and the second housing part (420) in the closed state is visible from the outside of the charging device (403).

[0199] According to one embodiment, the infrared ray having the first wavelength emitted by the first light emitting portion (313a) and the infrared ray having the second wavelength emitted by the second light emitting portion (313b) may be emitted in a first direction. The visible light emitted by the light emitting portion (323) may be emitted in a second direction opposite to the first direction.

[0200] According to one embodiment, the first housing portion (310) may include a sensor window (315) disposed on the sensor (313) and covering the sensor (313) from the outside of the wearable device (103).

[0201] According to one embodiment, the first housing part (410) of the charging device (403) may include at least one other light emitting portion (413) that emits visible light to indicate a charging status of the charging device (403).

[0202] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic 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. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0203] 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 component (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.

[0204] 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).

[0205] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) 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 called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0206] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0207] 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 wearable devices, a speaker for outputting audio information; and A housing comprising a first housing portion to be worn on a user's body part and a second housing portion fastened to the first housing portion, The above first housing part: A nozzle used as a path for the sound information output from the speaker; and A sensor comprising a first light emitting unit that emits infrared light having a first wavelength, a second light emitting unit that emits infrared light having a second wavelength longer than the first wavelength, and a light receiving unit that receives light related to the infrared light having the first wavelength and the infrared light having the second wavelength; The above second housing portion: stem part, and A light-emitting portion disposed along the edge of the stem portion and emitting visible light, Wearable devices.

2. In claim 1, The infrared rays having the first wavelength emitted by the first light emitting unit and the infrared rays having the second wavelength emitted by the second light emitting unit are emitted in the first direction, and The visible light emitted by the light emitting portion is emitted in a second direction opposite to the first direction. Wearable devices.

3. In claim 1, The first housing portion is disposed on the sensor and includes a sensor window for covering the sensor from the outside of the wearable device. Wearable devices.

4. In claim 1, The above wearable device, A memory storing instructions and including one or more storage media; and At least one processor comprising a processing circuit, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: The first light related to the infrared ray having the first wavelength emitted using the first light emitting unit is received through the light receiving unit; The second light related to the infrared ray having the second wavelength emitted using the second light emitting unit is received through the light receiving unit; Obtaining a first value representing the light quantity of the first light and a second value representing the light quantity of the second light; and causing the light emission of the light emitting part to be controlled based on the ratio of the first value to the second value and the first value; Wearable devices.

5. In claim 4, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: After detecting that the wearable device is located in a space inside the charging device, based on determining the ratio of the first value to the second value that is less than or equal to a reference ratio and the first value that is less than or equal to a first reference value, emitting visible light using the light emitting unit based on identifying that the state of the charging device is open; and After stopping emitting the visible light, based on determining that the state of the charging device is changed from the open state to the closed state by determining that the ratio of the first value to the second value is less than or equal to the reference ratio and less than or equal to a second reference value that exceeds the first reference value, causing the light emitting unit to emit the visible light, Wearable devices.

6. In claim 5, The charging device comprises a housing including a first housing part and a second housing part movably coupled to the first housing part between the closed state and the open state, The above first housing part: Including the space capable of accommodating the wearable device, and formed of opaque material, and The second housing part is formed of a transparent material so that the light-emitting portion disposed in the stem portion of the wearable device, which is positioned within the space between the first housing part and the second housing part in the closed state, is visible from the outside of the charging device. Wearable devices.

7. In claim 5, Based on identifying that the state of the charging device has changed from the open state to the closed state, the visible light emitted using the light emitting unit has a first light emitting pattern, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: After emitting the visible light having the first light emitting pattern, based on determining that the ratio of the first value to the second value is less than or equal to the reference ratio and the first value is less than or equal to the first reference value, the state of the charging device is changed from the closed state to the open state, thereby causing the visible light having the second light emitting pattern to be emitted using the light emitting unit. Wearable devices.

8. In claim 7, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: By further determining that the second value is less than or equal to the first reference value, based on identifying that the state of the charging device has changed from the closed state to the open state, causing the light emitting unit to emit the visible light having the second light emitting pattern. Wearable devices.

9. In claim 7, Each of the first light emitting pattern and the second light emitting pattern is determined using the brightness of the visible light, the time period during which the visible light is emitted, and the color of the visible light. Wearable devices.

10. In claim 7, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: Based on detecting that the wearable device is positioned in a space inside the charging device, causing the light emitting unit to emit visible light having a third light emitting pattern. Wearable devices.

11. In claim 5, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: By determining the ratio that is less than or equal to the reference ratio and the first value that exceeds the second reference value, causing the wearable device to emit visible light having a fourth emission pattern using the light emitting unit based on identifying that the wearable device is in contact with an external object, Wearable devices.

12. In claim 11, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: Causing the wearable device to change its mode to a low-power mode in which at least one function of at least one processor is turned off, based on identifying that the wearable device is in contact with the external object. Wearable devices.

13. In claim 4, The above instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: By determining the ratio exceeding the reference ratio, based on identifying that the wearable device is in contact with the body part of the user, causing the light emitting unit to emit the visible light having the fifth light emitting pattern. Wearable devices.

14. A method performed by a wearable device having a sensor including a first light emitting unit that emits infrared light having a first wavelength, a second light emitting unit that emits infrared light having a second wavelength longer than the first wavelength, and a light receiving unit that receives light related to infrared light having the first wavelength and infrared light having the second wavelength, An operation of receiving, through the light receiving unit, a first light related to infrared light having the first wavelength emitted using the first light emitting unit; An operation of receiving, through the light receiving unit, a second light related to infrared light having the second wavelength emitted using the second light emitting unit; An operation of obtaining a first value representing the light quantity of the first light and a second value representing the light quantity of the second light; and An operation for controlling the light emission of the light emitting unit based on the ratio of the first value to the second value and the first value, method.

15. In electronic devices, wearable devices; and A charging device for the wearable device is included; The above wearable device: a speaker for outputting audio information; and A housing comprising a first housing portion to be worn on a user's body part and a second housing portion fastened to the first housing portion, The first housing portion includes a sensor including a first light emitting portion that emits infrared light having a first wavelength; a second light emitting portion that emits infrared light having a second wavelength longer than the first wavelength; and a light receiving portion that receives light related to the infrared light having the first wavelength and the infrared light having the second wavelength; The second housing portion includes a stem portion and a light-emitting portion that is arranged along the edge of the stem portion and emits visible light, The above charging device: A housing comprising a first housing part and a second housing part movably coupled to the first housing part between a closed state and an open state, The above first housing part: comprising a space capable of accommodating the wearable device; and formed of opaque material, and The second housing part is formed of a transparent material so that the light-emitting portion disposed in the stem portion of the wearable device, which is positioned within the space between the first housing part and the second housing part in the closed state, is visible from the outside of the charging device. Electronic devices.

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