Wearable electronic device, biometric information acquisition method using same, and storage medium

Abstract

A wearable electronic device, according to one embodiment of the present disclosure, may comprise: a cover glass; a second lens connected to the cover glass and at least partially exposed to the outside of the wearable electronic device; a first lens having the same central axis as the second lens and positioned below the second lens; a photonic integrated circuit; and a photodetector. The photonic integrated circuit may include at least one laser light source and a plurality of grating couplers transmitting, to the first lens, light in a plurality of wavelength bands outputted via the at least one laser light source. The plurality of grating couplers may be formed such that the light in the plurality of wavelength bands outputted via the at least one laser light source is incident on the first lens at a first angle. The first lens may be formed such that the light in the plurality of wavelength bands incident at the first angle is incident on the second lens at a second angle, and the second lens may be formed such that the light in the plurality of wavelength bands incident at the second angle is incident toward a light irradiation region.

Description

Wearable electronic device, method for acquiring biometric information using the same, and storage medium

[0001] The embodiments of the present disclosure relate to a wearable electronic device, a method for obtaining biometric information using the same, and a storage medium.

[0002] Recently, various sensors capable of measuring a user's biometric information are being incorporated into electronic devices. For example, among these various sensors, an optical sensor comprising at least one light-emitting element and a light-receiving element may be included. The optical sensor can measure a user's biometric information by utilizing light of a specific wavelength range. Examples of the user's biometric information may include blood glucose information. Methods for measuring blood glucose may include invasive and non-invasive methods. For example, an invasive method may be a method of collecting blood from the human body to measure the glucose content in the blood. In the case of an invasive method, since blood is collected using a lancet, it may cause pain to the user and be inconvenient to carry and store the lancet. Since a non-invasive method does not require a blood collection process, a lancet is not used, allowing for relatively simple and rapid measurement of blood glucose.

[0003] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0004] Since non-invasive methods using optical elements measure blood glucose without blood sampling, the blood glucose measurement data may be inaccurate due to process difficulties and loss of optical signals.

[0005] A wearable electronic device according to one embodiment of the present disclosure may include a cover glass.

[0006] A wearable electronic device according to one embodiment of the present disclosure may include a second lens connected to a cover glass and having at least a portion exposed to the outside of the wearable electronic device.

[0007] A wearable electronic device according to one embodiment of the present disclosure may include a first lens located below the second lens and having the same central axis as the second lens.

[0008] A wearable electronic device according to one embodiment of the present disclosure may include a photonic integrated circuit.

[0009] A wearable electronic device according to one embodiment of the present disclosure may include a photodetector.

[0010] A photonic integrated circuit of a wearable electronic device according to one embodiment of the present disclosure may include at least one laser light source.

[0011] A photonic integrated circuit of a wearable electronic device according to one embodiment of the present disclosure may include a plurality of grating couplers that transmit light of a plurality of wavelength bands output through at least one laser light source to a first lens.

[0012] A plurality of grating couplers of a photonic integrated circuit according to one embodiment of the present disclosure may be formed so that light of a plurality of wavelength bands output through at least one laser light source is incident on a first lens at a first angle.

[0013] A first lens of a photonic integrated circuit according to one embodiment of the present disclosure may be formed such that light of a plurality of wavelength bands incident at a first angle is incident on a second lens at a second angle.

[0014] A second lens according to one embodiment of the present disclosure may be formed so that light of a plurality of wavelength bands incident at a second angle is incident toward a light irradiation area.

[0015] According to one embodiment of the present disclosure, a wearable electronic device may include a memory for storing instructions.

[0016] According to one embodiment of the present disclosure, a wearable electronic device may include a processor.

[0017] In a wearable electronic device according to one embodiment of the present disclosure, instructions can analyze wavelength band and intensity information of light detected by a photodetector when executed by a processor.

[0018] In a wearable electronic device according to one embodiment of the present disclosure, instructions can acquire at least one bio-information based on wavelength band and intensity information of light analyzed when executed by a processor.

[0019] A method for acquiring biometric information using a wearable electronic device according to one embodiment of the present disclosure may include a plurality of grating couplers that are output through a plurality of laser sources.

[0020] A method for acquiring biometric information using a wearable electronic device according to one embodiment of the present disclosure may include the operation of analyzing wavelength band and intensity information of light detected by a light detector after it is reflected from a light irradiation area after passing through a first lens and a second lens.

[0021] A method for acquiring bio-information according to one embodiment of the present disclosure may include the operation of acquiring at least one piece of bio-information based on wavelength band and intensity information of analyzed light.

[0022] A non-transient computer-readable storage medium (or computer program product) that stores one or more programs may be described.

[0023] One or more programs according to one embodiment may include a command to analyze wavelength band and intensity information of light detected by a light detector after passing through a plurality of laser sources, a plurality of grating couplers, a first lens, and a second lens and reflecting from a light irradiation area, when executed by at least one processor of a wearable electronic device.

[0024] One or more programs according to one embodiment may include a command to acquire at least one bio-information based on the wavelength band and intensity information of analyzed light when executed by at least one processor of a wearable electronic device.

[0025] A wearable electronic device according to one embodiment of the present disclosure can increase power efficiency by configuring and arranging a grating coupler, a first lens, and a second lens to minimize loss of light of multiple wavelength bands output from at least one laser light source.

[0026] A wearable electronic device according to one embodiment of the present disclosure can detect reflected light after reaching a light irradiation area through a light detector and, based on this, more accurately obtain the user's biometric information.

[0027] A wearable electronic device according to one embodiment of the present disclosure can measure a user's biometric information more diversely and accurately based on wavelength band and intensity information of light reflected by a light irradiation area.

[0028] In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0029] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.

[0030] FIG. 2 is a front perspective view of a wearable electronic device according to one embodiment of the present disclosure.

[0031] FIG. 3 is a rear perspective view of the wearable electronic device of FIG. 2 according to one embodiment of the present disclosure.

[0032] FIG. 4 is a drawing for illustrating a photonic integrated circuit disposed on a second surface of a wearable electronic device according to one embodiment of the present disclosure.

[0033] FIG. 5 is a block diagram of a wearable electronic device according to one embodiment of the present disclosure.

[0034] FIG. 6 is an overall drawing for explaining a wearable electronic device according to one embodiment of the present disclosure.

[0035] FIGS. 7, FIGS. 8 and FIGS. 9 are drawings for illustrating an optical path in a wearable electronic device according to one embodiment of the present disclosure.

[0036] FIG. 10 is a drawing for explaining a grating coupler of a photon direct circuit according to one embodiment of the present disclosure.

[0037] FIG. 11 is a drawing for explaining a first lens according to one embodiment of the present disclosure.

[0038] FIG. 12 is a drawing for explaining a second lens according to one embodiment of the present disclosure.

[0039] FIG. 13 is a flowchart showing the optical paths of a plurality of wavelength bands in a wearable electronic device according to one embodiment of the present disclosure.

[0040] FIG. 14 is a flowchart illustrating a method for obtaining user biometric information in a wearable electronic device according to one embodiment of the present disclosure.

[0041] FIG. 15 is a flowchart illustrating a method for obtaining user biometric information in a wearable electronic device according to one embodiment of the present disclosure.

[0042] FIG. 16 is a drawing for illustrating a display for displaying user biometric information in a wearable electronic device according to one embodiment of the present disclosure.

[0043] Hereinafter, embodiments of the present disclosure are described in detail with reference to the drawings so that those skilled in the art can easily practice them. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein. In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

[0044] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments.

[0045] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with at least one of an electronic device (104) or a server (108) through 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) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0046] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0047] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of artificial neural network layers.An artificial neural network may be 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0048] The number of processors (120) may be one or more. For example, the processor (120) may have the structure of a multi-core processor such as a dual core, a quad core, or a hexa core.

[0049] The processor (120) can control the operations of the electronic device (101) by executing instructions stored in memory (130). For example, the processor (120) may correspond to a plurality of processors that divide and collectively perform a plurality of operations among the processors.

[0050] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0051] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0052] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0053] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0054] The display module (160) can visually provide information to an external (e.g., 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 said device. According to 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 the force generated by said touch.

[0055] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0056] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0057] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to 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.

[0058] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0059] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0060] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0061] 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 part of a power management integrated circuit (PMIC).

[0062] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0063] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an 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 include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0064] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), 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), external electronic device (e.g., electronic device (104)), or network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) may support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0065] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a printed circuit board (PCB)). According to 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 a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a 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. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0066] 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 to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0067] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0068] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through 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 performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or 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 provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a 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.

[0069] FIG. 2 is a front perspective view of a wearable electronic device according to one embodiment of the present disclosure. FIG. 3 is a rear perspective view of the wearable electronic device of FIG. 2 according to one embodiment of the present disclosure.

[0070] The wearable electronic device (200) of FIGS. 2 and 3 may be at least partially similar to the electronic device (101) of FIG. 1, or may include other embodiments of the electronic device.

[0071] Referring to FIGS. 2 and 3, a wearable electronic device (200) may include a housing (210) (e.g., a housing structure) comprising a first surface (210A) (or front), a second surface (210B) (or rear), and a side (210C) surrounding the space between the first surface (210A) and the second surface (210B), and a fastening member (250, 260) (e.g., a strap, a connecting member, or a coupling member) connected to at least a portion of the housing (210) and configured to detachably fasten the wearable electronic device (200) to a part of a user's body (e.g., a wrist, or an ankle). In some embodiments, the housing (210) may refer to a structure forming some of the first surface (210A), the second surface (210B), and the side (210C) of FIG. 2. In one embodiment, the first surface (210A) may be formed by a front plate (202) (e.g., front cover) (e.g., a glass plate containing various coating layers, or a polymer plate) in which at least a portion is substantially transparent. The second surface (210B) may be formed by a rear plate (207) (e.g., rear cover) in which it is substantially opaque and a sensor cover (208) combined with the rear plate (207). The rear plate (207) may be formed by, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the above materials. The side surface (210C) may be formed by a side member (e.g., a side bezel structure) (220) comprising metal and / or polymer, which is combined with the front plate (201) and the rear plate (207). In some embodiments, the rear plate (207) and the side member (220) may be integrally formed and may comprise the same material (e.g., a metallic material such as aluminum). The fastening members (250, 260) may be formed in various materials and shapes.A woven fabric, leather, rubber, urethane, metal, ceramic, or a combination of at least two of the above materials can be formed such that an integral and a plurality of unit links are movable with respect to each other.

[0072] According to various embodiments, the wearable electronic device (200) may include at least one of a display (201), an audio module (205), a sensor module (211), and a key input device (203). In some embodiments, the wearable electronic device (200) may omit at least one of the components (e.g., a key input device (203) or a sensor module (211)) or additionally include other components.

[0073] According to various embodiments, the display (201) may be visible through a significant portion of the front plate (202). The shape of the display (201) may correspond to the shape of the front plate (202) and may be various shapes such as circular, elliptical, or polygonal. The display (201) may be combined with or placed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of the touch, and / or a fingerprint sensor.

[0074] According to various embodiments, the audio module (205) may include a microphone hole (205) and a speaker hole (not shown). A microphone for acquiring external sound may be placed inside the microphone hole (205), and in some embodiments, a plurality of microphones may be placed to detect the direction of sound. The speaker hole may be used as an external speaker and a receiver for calls. In some embodiments, the speaker hole and the microphone hole (205) may be implemented as a single hole, or a speaker may be included without a speaker hole (e.g., a piezo speaker).

[0075] According to various embodiments, the sensor module (211) may generate an electrical signal or data value corresponding to an internal operating state of the wearable electronic device (200) or an external environmental state. The sensor module (211) may include, for example, a biosensor module (e.g., HRM sensor) disposed on a second surface (210B) of the housing (210). The wearable electronic device (200) may further include at least one of the sensor modules not illustrated, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0076] According to various embodiments, the key input device (203) may include a wheel key (not shown) disposed on a first surface (210A) of the housing (210) and rotatable in at least one direction, and / or a side key button (203) disposed on a side (210C) of the housing (210). The wheel key may have a shape corresponding to the shape of the front plate (202). In some embodiments, the wearable electronic device (200) may not include some or all of the aforementioned key input devices (203), and the key input device (203) not included may be implemented in other forms, such as soft keys, on the display (201). The connector hole (not shown) may include a connector (e.g., a USB connector) for transmitting and receiving power and / or data with an external electronic device and another connector hole (not shown) for transmitting and receiving audio signals with an external electronic device. The wearable electronic device (200) may further include, for example, a connector cover (not shown) that covers at least a portion of the connector hole and blocks the entry of external foreign matter into the connector hole.

[0077] According to various embodiments, the fastening member (250, 260) may be detachably fastened to at least a portion of the housing (210) using a locking member (251, 261). The fastening member (250, 260) may include one or more of a fixing member (252), a fixing member fastening hole (253), a band guide member (254), and a band fixing ring (255). The fixing member (252) may be configured to secure the housing (210) and the fastening member (250, 260) to a part of the user's body (e.g., wrist, ankle). The fixing member fastening hole (253) may secure the housing (210) and the fastening member (250, 260) to a part of the user's body in correspondence with the fixing member (252). The band guide member (254) is configured to limit the range of movement of the fixing member (252) when the fixing member (252) is connected to the fixing member fastening hole (253), thereby allowing the fastening member (250, 260) to be fastened in close contact with a part of the user's body. The band fixing member (255) can limit the range of movement of the fastening member (250, 260) when the fixing member (252) and the fixing member fastening hole (253) are connected.

[0078] According to various embodiments, the wearable electronic device (200) may include a conductive cover (230) (e.g., a decorative member or a deco cover) that is combined with a side member (220) at the front (210A) and covers the edges of the display (201) so that they are not visible from the outside. In one embodiment, the wearable electronic device (200) may include an auxiliary cover (235) that is placed on top of the conductive cover (230) and helps to form an aesthetic appearance. In one embodiment, the conductive cover (230) and the auxiliary cover (235) may be used as decorative members (e.g., deco) of the wearable electronic device (200).

[0079] According to various embodiments, the wearable electronic device (200) may include at least one antenna configured to transmit and / or receive a wireless signal in a specific frequency band through a conductive cover (230) electrically connected to a wireless communication circuit (e.g., a wireless communication module (192) of FIG. 1) disposed in the internal space of the housing (210).

[0080] FIG. 4 is a drawing for illustrating a photonic integrated circuit disposed on a second surface of a wearable electronic device according to one embodiment of the present disclosure.

[0081] Referring to FIG. 4, the wearable electronic device (200) may include a housing (210) comprising a first surface (e.g., the first surface (210A) of FIG. 2) (or front), a second surface (210B) (or rear), and a side (e.g., the side (210C) of FIG. 2) surrounding the space between the first surface (210A) and the second surface (210B).

[0082] In one embodiment, the wearable electronic device (200) may include a substrate disposed in the internal space of the wearable electronic device (200). In one embodiment, the substrate (e.g., 810 in FIGS. 6 to 9) may be formed of a silicon material.

[0083] In one embodiment, a sensor module (211) may be disposed on one side of the substrate (e.g., the side facing the -z axis in FIG. 2 and FIG. 3). The sensor module (211) may include a photonic integrated circuit (e.g., the photonic integrated circuit (441) in FIG. 5).

[0084] In FIG. 4 according to one embodiment, the sensor module (211) is shown to be disposed in the central region of the second surface (210B) of the wearable electronic device (200), but is not limited thereto. For example, the sensor module (211) may be disposed in the internal space of the wearable electronic device (200) corresponding to the hole (310) formed in the second surface (210B) of the wearable electronic device (200).

[0085] FIG. 5 is a block diagram of a wearable electronic device (200) according to one embodiment of the present disclosure.

[0086] In one embodiment of the present disclosure, the wearable electronic device (200) is described as a wearable electronic device that can be worn on a part of a user's body, for example, the wrist, but is not limited thereto. For example, the wearable electronic device (200) may be a wearable electronic device that can be worn on a user's finger or ear. As another example, the wearable electronic device (200) may include any electronic device capable of measuring biometric information, including a user's blood glucose.

[0087] Referring to FIG. 5, an electronic device (e.g., electronic device (101) of FIG. 1, wearable electronic device (200) of FIG. 5) may include a photonic integrated circuit (441), a first lens (471 of FIG. 7), a second lens (472 of FIG. 7), a photodetector (450) (e.g., a photoreceiver), a display (160), a memory (130) (e.g., memory (130) of FIG. 1) and / or a processor (120) (e.g., processor (120) of FIG. 1).

[0088] According to one embodiment of the present disclosure, the photonic integrated circuit (441) may include at least one laser light source (505) that generates light of multiple wavelength bands and a plurality of grating couplers (540).

[0089] A laser light source (505) according to one embodiment can generate and output light having multiple wavelength bands. Light of multiple wavelength bands initially output from the laser light source (505) is decomposed into light of a specific wavelength by a DBR method, etc., and reaches a grating coupler designed to correspond to each wavelength. The laser light source (505) generates and outputs light of various wavelength bands, and the electronic device (200) can obtain various bio-information characterized by wavelength through the analysis of multiple wavelengths of light reflected by the light irradiation area.

[0090] According to one embodiment, a plurality of grating couplers (540) may be formed so that light of multiple wavelength bands output from a laser light source is incident on a first lens (471 in FIG. 7) at a first angle. Specifically, the plurality of grating couplers (540) may be designed to be specialized for each wavelength of light of multiple wavelength bands output from a laser light source. For example, among the plurality of grating couplers (540), the first grating coupler is designed so that light of a first wavelength is incident on the first lens (471 in FIG. 7) at a first angle. Among the plurality of grating couplers (540), the second grating coupler is designed so that light of a second wavelength is incident on the first lens (471 in FIG. 7) at a first angle.

[0091] The first angle is an angle to relatively minimize the loss of light incident on the light irradiation area and can be varied based on the size and arrangement of components within the electronic device (200). The first angle can be set so that light of multiple wavelengths can be incident on a substantial single point of the light irradiation area (460).

[0092] According to one embodiment of the present disclosure, a light detector (450) can detect light to obtain biological information. For example, the light detector (450) can detect light of multiple wavelength bands output from a plurality of laser light sources (505) that passes through a grating coupler (540), a first lens (471 in FIG. 7), and a second lens (472 in FIG. 7), is reflected in a light irradiation area (460), and reaches the light detector. The light detector (450) can detect the intensity and wavelength band of the light reflected by the light irradiation area (460) and transmit this to a processor (120).

[0093] In one embodiment, the photodetector (450) has substantially the same central axis as the plurality of grating couplers (540), the first lens (471 in FIG. 7), and the second lens (472 in FIG. 7), and may be positioned between the plurality of grating couplers (540) and the first lens (471 in FIG. 7).

[0094] According to one embodiment of the present disclosure, a memory (130) (e.g., memory (130) of FIG. 1) performs the function of storing a program (e.g., program (140) of FIG. 1) for processing and controlling the processor (120) of the wearable electronic device (200), an operating system (OS) (e.g., operating system (142) of FIG. 1), various applications (e.g., application (146) of FIG. 1), and / or input / output data, and can store a program that controls the overall operation of the wearable electronic device (200). The memory (130) can store various configuration information required for processing functions related to various embodiments of the present disclosure in the wearable electronic device (200). The memory (130) can store executable instructions. For example, memory (130) may store instructions that cause the wearable electronic device (200) to perform operations when executed by the processor (120). For example, the instructions may be stored in a computer-readable storage medium. The storage medium may be tangible and non-transitory. Memory (130) and / or the storage medium may store one or more programs containing instructions.

[0095] In one embodiment, the memory (130) may store instructions for detecting light reflected by a light irradiation area through a photodetector (450) that is output through a plurality of laser light sources (505) under the control of the processor (120). The memory (130) may store instructions for obtaining at least one biological information based on the light reflected by the light irradiation area (e.g., light intensity and wavelength band) detected through the photodetector (450) under the control of the processor (120).

[0096] In one embodiment, the memory (130) may store the user's reference blood glucose information. The user's reference blood glucose information may include, for example, the user's blood glucose information measured using a reference device (e.g., a reference device for measuring blood glucose) or blood glucose information corresponding to the user's attribute information (e.g., age, gender, and / or race).

[0097] According to one embodiment of the present disclosure, the processor (120) may include, for example, a microcontroller unit (MCU) and may control a plurality of hardware components connected to the processor (120) by running an operating system (OS) or an embedded software program. The processor (120) may control a plurality of hardware components according to, for example, instructions stored in memory (130) (e.g., the program (140) of FIG. 1).

[0098] In one embodiment, the processor (120) can analyze wavelength band and intensity information of light detected by the light detector (450). The processor (120) can obtain biological information based on the analyzed wavelength band and intensity information. The biological information may include, but is not limited to, in vivo components, blood glucose, proteins, lactic acid, alcohol, glucose, hemoglobin, proteins, cholesterol, albumin, triglycerides, creatinine, and / or glycated hemoglobin.

[0099] In one embodiment, the processor (120) can display the acquired biometric information on the display (160).

[0100] In one embodiment, when the processor (120) receives a request for biometric information from a user, it can obtain biometric information by analyzing the wavelength band and intensity information of light detected by the light detector (450). Additionally, the obtained biometric information can be displayed on a display (160) to provide the biometric information to the user.

[0101] According to one embodiment of the present disclosure, a display (160) (e.g., the display (201) of FIG. 2) can visually provide information to an external user (e.g., a user) of an electronic device (200). For example, the display (160) can provide information to the user by displaying biometric information obtained by the processor (120).

[0102] The aforementioned display (160) will be described in detail in FIG. 16 below.

[0103] FIG. 6 is an overall drawing for explaining a wearable electronic device according to one embodiment of the present disclosure.

[0104] Referring to FIG. 6, a wearable electronic device (200) according to one embodiment may include a photonic integrated circuit (441 in FIG. 5) comprising a plurality of laser light sources (505 in FIG. 5) and grating couplers (540), a first lens (471), a second lens (472), a cover glass (473), and a photodetector (450).

[0105] FIGS. 7, FIGS. 8 and FIGS. 9 are drawings for illustrating an optical path in a wearable electronic device according to one embodiment of the present disclosure.

[0106] Referring to FIG. 7, an electronic device (e.g., the electronic device (101) of FIG. 1, the wearable electronic device (200) of FIG. 5) may include a photonic integrated circuit (441), a first lens (471), a second lens (472), and a photodetector (450) (e.g., a photoreceiver).

[0107] According to one embodiment of the present disclosure, the photonic integrated circuit (441) may include at least one laser light source (505) that generates light of multiple wavelength bands and a plurality of grating couplers (540).

[0108] A laser light source (505) according to one embodiment can generate and output light having multiple wavelength bands. Light of multiple wavelength bands initially output from the laser light source (505) is decomposed into light of a specific wavelength by a DBR method, etc., and reaches a grating coupler designed to correspond to each wavelength. The laser light source (505) generates and outputs light of various wavelength bands, and the electronic device (200) can obtain various bio-information characterized by wavelength through the analysis of light wavelengths reflected by the light irradiation area.

[0109] According to one embodiment, a plurality of grating couplers (540) may be formed so that light of multiple wavelength bands output from a laser light source is incident on a first lens (471) at a first angle. Specifically, the plurality of grating couplers (540) may be designed to be specialized for each wavelength of light of multiple wavelength bands output from a laser light source. For example, among the plurality of grating couplers (540), the first grating coupler is designed so that light of a first wavelength is incident on the first lens (471 in FIG. 7) at a first angle. Among the plurality of grating couplers (540), the second grating coupler is designed so that light of a second wavelength is incident on the first lens (471 in FIG. 7) at a first angle. The first angle is an angle to relatively minimize the loss of light incident on the light irradiation area and can be set in various ways based on the size and arrangement of components within the electronic device (200). The first angle can be set so that light of multiple wavelengths can be incident on a substantial point of the light irradiation area (460).

[0110] The aforementioned photon integrated circuit (441) will be described in detail in FIG. 10 below.

[0111] According to one embodiment of the present disclosure, the first lens (471) may be formed so that light of a plurality of wavelength bands incident from the grating coupler (540) at a first angle is incident on the second lens (472) at a second angle.

[0112] The first lens (471) and the first angle described above will be explained in detail in FIG. 11 below.

[0113] According to one embodiment of the present disclosure, the second lens (472) may be formed so that light of a plurality of wavelength bands incident from the first lens (471) at a second angle is incident at a substantial point in the light irradiation area (e.g., the light irradiation area (460) of FIG. 6).

[0114] The second lens and second angle (472) described above will be explained in detail in FIG. 12 below.

[0115] According to an embodiment of the present disclosure, the light irradiation area (460) may include a part of the user's body, for example, a wrist, skin, blood, or interstitial nucleus, in consideration of the purpose of the present invention for measuring non-invasive bio-information (components). However, it is not limited thereto, and may also include an area where the user's body information, for example, blood sugar, protein, lactic acid, alcohol, glucose, hemoglobin, bilirubin, cholesterol, albumin, creatinine, glycated hemoglobin, etc., can be measured.

[0116] According to one embodiment of the present disclosure, a light detector (450) can detect light to obtain biological information. For example, the light detector (450) can detect light of multiple wavelength bands output from a plurality of laser light sources (505) that passes through a grating coupler (540), a first lens (471), and a second lens (472), is reflected in a light irradiation area (460), and reaches the light detector. The light detector (450) can detect the intensity and wavelength band of the light reflected by the light irradiation area (460) and transmit this to a processor (120).

[0117] In one embodiment, the photodetector (450) has substantially the same central axis as the plurality of grating couplers (540), the first lens (471), and the second lens (472), and may be positioned between the plurality of grating couplers (540) and the first lens (471).

[0118] Referring to FIG. 8, light of multiple wavelength bands (n wavelengths) can be output from multiple laser light sources (505 of FIG. 7). The light of multiple wavelength bands can pass through multiple grating couplers (540) specialized for each wavelength and be incident on the bevel surface of the first lens (471) at a first angle (A).

[0119] For example, among the light of multiple wavelength bands (n wavelengths) output from multiple laser light sources (505 in FIG. 7), light (I) having a first wavelength can pass through a first grating coupler designed so that the light of the first wavelength (I) is incident on the first lens (471) at a first angle (A). Additionally, among the light of multiple wavelength bands (n wavelengths) output from multiple laser light sources (505 in FIG. 7), light (II) having a second wavelength can pass through a second grating coupler designed so that the light of the first wavelength (II) is incident on the first lens (471) at a first angle (A).

[0120] The first angle (A) is an angle to minimize the loss of light incident on the light irradiation area (460) and can be varied based on the size and arrangement of components within the wearable electronic device (200).

[0121] However, unlike what is shown in FIGS. 6 to 9, light of multiple wavelength bands output from multiple laser light sources (505) according to one embodiment may pass through multiple grating couplers (540) specialized for each wavelength and be incident on multiple rod-shaped lenses near the first lens (471). In this case, the light path becomes longer than when incident on multiple rod-shaped lenses far from the first lens (471), so it can be applied to various electronic devices in addition to wearable electronic devices (200) that require miniaturization.

[0122] According to one embodiment, light of multiple wavelength bands incident on the first lens (471) at a first angle (A) may be incident on the second lens (472) at a second angle (B). The second angle (B) is an angle to relatively minimize the loss of light incident on the light irradiation area (460) and can be varied based on the size and arrangement of components within the wearable electronic device (200).

[0123] According to one embodiment, light incident on the second lens (472) at a second angle (B) can be incident toward a substantially single point within the light irradiation area (460) after passing through the second lens (472). That is, light of multiple wavelength bands output from at least one laser light source (505) can be incident on the light irradiation area (460) with relatively minimized loss. The light irradiation area (460) may include a part of the user's body, for example, a wrist, skin, blood, or interstitial nucleus, and the periphery (hatching) of the light irradiation area (460) may include the user's skin or tissue. However, it is not limited thereto.

[0124] Referring to FIG. 9, it can be seen that light of multiple wavelength bands (e.g., light of the first wavelength (I), light of the second wavelength (II)) output from multiple laser light sources (505) passes through a grating coupler (540), a first lens (471), and a second lens (472) and is incident toward a substantially single point within the light irradiation area (460), and then is reflected.

[0125] According to one embodiment, light (III) of multiple wavelength bands reflected from a substantial point in the light irradiation area (460) can reach the light detector (450). That is, the light detector (450) can detect light (III) that reaches the light detector after light of multiple wavelength bands (e.g., light of a first wavelength (I), light of a second wavelength (II)) output from a plurality of laser light sources (505) passes through a plurality of grating couplers (540), a first lens (471), and a second lens (472) and is reflected from the light irradiation area (460). The light detector (450) can detect the intensity and wavelength band of the light (III) reflected by the light irradiation area and transmit this to the processor (120). The processor (120) can analyze the intensity and wavelength band of the received light to obtain bio-information including at least one of blood glucose, protein, alcohol, glucose, hemoglobin, cholesterol, or glycated hemoglobin.

[0126] FIG. 10 is a drawing for illustrating a photon direct circuit according to one embodiment of the present disclosure.

[0127] Referring to FIG. 10, the photonic integrated circuit (441) may include at least one laser light source (505 of FIG. 7) and / or a plurality of grating couplers (540).

[0128] In one embodiment, the laser light source may be composed of a plurality of laser light sources (e.g., a plurality of laser sources) that emit light of a plurality of different wavelength bands. The laser light sources according to one embodiment may include a laser diode having high light intensity and transmittance. That is, by using a laser as a light source for measuring biometric information, user biometric information can be acquired more diversely and accurately. However, this is not limited thereto, and for example, the plurality of light sources may be configured in various ways, such as a VCSEL (vertical cavity surface emitting laser).

[0129] A laser light source (505 in FIG. 7) can emit light of different wavelength bands under the control of a processor (e.g., processor (120) in FIG. 5).

[0130] In one embodiment, the grating coupler (540) may output light of multiple wavelength bands received through multiple laser light sources (505) (e.g., to a light irradiation area (e.g., a part of the user's body (e.g., wrist)). In one embodiment, the grating coupler (540) may be arranged in a circular manner to correspond to each of the multiple wavelength bands (e.g., about 2010 nm to about 2400 nm) of light radiated through the laser light source (505). However, it is not limited thereto. For example, the grating coupler (540) may include multiple grating couplers. In this case, each of the multiple grating couplers may be arranged in a circular manner to correspond to each of the multiple wavelength bands (e.g., about 2210 nm, about 2220 nm, about 2230 nm, …, about 2290 nm) radiated through the laser source (505). Alternatively, each of the multiple grating couplers may be positioned to correspond to a specific region (full scale range, FSR) of multiple wavelength bands (e.g., about 2010 nm to about 2400 nm).

[0131] In one embodiment, the grating coupler (540) may be arranged in a circular manner facing each other, corresponding to light of a specific wavelength among a plurality of wavelength bands (e.g., about 2010 nm to about 2400 nm) of light radiated through a laser light source (505). For example, light of the first wavelength (I in FIG. 6) may reach the first grating coupler (540A-1, 540A-2) arranged in a circular manner facing each other, and light of the second wavelength (II in FIG. 6) may reach the second grating coupler (540B-1, 540B-2) arranged in a circular manner facing each other.

[0132] In one embodiment, a plurality of grating couplers (540) may be arranged so that light of multiple wavelength bands output from a laser light source (505) is focused on a specific area of ​​the light irradiation area (460). That is, the plurality of grating couplers (540) may be arranged in a circular manner on the light path of each of the light of multiple wavelength bands output from the laser light source (505). Specifically, the plurality of grating couplers (540) may be designed to be specialized for each of the light of multiple wavelength bands output from the laser light source. For example, among the plurality of grating couplers (540), the first grating coupler is designed so that light of a first wavelength is incident on the first lens (471 in FIG. 7) at a first angle. Among the plurality of grating couplers (540), the second grating coupler is designed so that light of a second wavelength is incident on the first lens (471 in FIG. 7) at a first angle.

[0133] In one embodiment, the grating coupler (540) may have an anti-reflective coating to relatively minimize the reflection of light of multiple wavelength bands incident from the laser light source (505).

[0134] FIG. 11 is a drawing for explaining a first lens according to one embodiment of the present disclosure.

[0135] Referring to FIG. 11, the first lens (471) can be formed so that light of multiple wavelength bands incident from the grating coupler (540) at a first angle is incident on the second lens (472) at a second angle.

[0136] In one embodiment, the first lens (471) comprises a plurality of rod-shaped lenses, and the rod-shaped lenses may be prism-type lenses. The first lens (471) may be composed of a material (e.g., silicon, sapphire, glass) that increases light transmittance according to the main wavelength band of the bio-information to be acquired.

[0137] In one embodiment, the first lens (471) may be coated with an anti-reflective coating to relatively minimize the reflection of light of multiple wavelength bands incident from the grating coupler (540) at a first angle.

[0138] In one embodiment, a plurality of rod-shaped lenses constituting the first lens (471) correspond to a plurality of grating couplers (540), and the number of the plurality of grating couplers (540) and the plurality of rod-shaped lenses may be configured to be the same. Additionally, corresponding to a plurality of grating couplers (540) arranged in a circular shape, the plurality of rod-shaped lenses of the first lens (471) may be arranged in a truncated cone shape.

[0139] Referring to FIG. 11, a plurality of rod-shaped lenses of the first lens (471) arranged in a truncated cone shape are shown in a top view (11-1) and side view (11-2, 11-3).

[0140] Referring to FIG. 11-2, the shape of the first lens according to one embodiment can be seen. A plurality of rod-shaped lenses constituting the first lens (471) may be arranged in a truncated cone shape corresponding to a plurality of grating couplers (540) arranged in a circular shape, and the truncated cone shape may include a downwardly convex truncated cone shape (11-2).

[0141] Referring to FIGS. 11-3 and 11-3', another form of the first lens according to one embodiment can be seen. The other form of the first lens shown in 11-3 may include a plurality of surfaces corresponding to a plurality of circularly arranged grating couplers (540). That is, it may include a downwardly concave shape while including a plurality of surfaces corresponding to a plurality of surfaces formed by a plurality of rod-shaped lenses constituting the first lens (471) shown in 11-2. 11-3' illustrates a cross-sectional view of the first lens of the other form shown in 11-3 when it is placed within a wearable electronic device (200).

[0142] In one embodiment, light of multiple wavelength bands passing through a first lens (471) arranged in a truncated cone shape at a first angle can be incident on a second lens (472) at a second angle.

[0143] The first angle is an angle to relatively minimize the loss of light incident on the light irradiation area and can be varied based on the size and arrangement of components within the electronic device (200). The first angle can be set so that light of multiple wavelengths can be incident on a substantial single point of the light irradiation area (460).

[0144] FIG. 12 is a drawing for explaining a second lens according to one embodiment of the present disclosure.

[0145] Referring to FIG. 12, the second lens (472) can be formed so that light of multiple wavelength bands incident from the first lens (471) at a second angle is incident on the light irradiation area (460).

[0146] In one embodiment, the second lens (472) may be designed so that the portion through which light of multiple wavelength bands passes is inclined, so that light of multiple wavelength bands incident from the first lens (471) at a second angle is refracted and incident on a substantial point in the light irradiation area (460). However, the middle portion may be designed so that light (III in FIG. 9) reflected from a substantial point in the light irradiation area (460) passes through the second lens (472) in a straight line and reaches the light detector (450).

[0147] In one embodiment, the second lens (472) may be connected to the cover glass (473) and positioned so that its upper portion is exposed to the outside. The upper curvature (R1) of the second lens (472) may be formed substantially the same as the upper curvature of the cover glass (473) so as not to feel out of place with the cover glass (473) of the wearable electronic device (200).

[0148] In one embodiment, the lower curvature (R2) of the second lens (472) can be formed so that light of multiple wavelength bands incident from the first lens (471) at a second angle is incident toward the light irradiation area (460) at a single point. That is, the upper curvature (R1) and the lower curvature (R2) of the second lens (472) can be formed differently.

[0149] The second angle can be varied based on the size and arrangement of components within the wearable electronic device (200) to relatively minimize the loss of light incident on the light irradiation area (460). The second angle can be set to an angle such that light of multiple wavelength bands that has passed through the first lens (471) at the first angle can pass through the second lens (472) and be incident on the light irradiation area (460) at a substantial single point.

[0150] In one embodiment, the second lens (472) may be composed of a material (e.g., silicon, sapphire, glass) that increases light transmittance according to the main wavelength band of the bio-information to be acquired.

[0151] In one embodiment, the second lens (472) may have an anti-reflective coating to prevent or reduce reflection of light of multiple wavelength bands incident from the first lens (471) at a second angle.

[0152] FIG. 13 is a flowchart showing the optical paths of a plurality of wavelength bands in a wearable electronic device according to one embodiment of the present disclosure.

[0153] In the following embodiments, each operation of FIG. 13 may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation of FIG. 13 may be changed, and at least two operations may be performed in parallel.

[0154] According to one embodiment, the 1000 to 1200 operations of FIG. 13 may be understood to be performed in a processor (120) of an electronic device (e.g., the electronic device (101) of FIG. 1 and the wearable electronic device (200) of FIG. 5).

[0155] Referring to FIG. 13, the processor (120) can control light of multiple wavelength bands output from at least one laser light source (505) to pass through multiple grating couplers (540) and be incident on a first lens (471) at a first angle (1000). The first angle is an angle to relatively minimize the loss of light incident on the light irradiation area (460) and can be varied based on the size and arrangement of components within the wearable electronic device (200).

[0156] In one embodiment, the processor (120) can control light of multiple wavelength bands incident on the first lens (471) at a first angle to be incident on the second lens (472) at a second angle (1100). The second angle can be varied based on the size and arrangement of components within the wearable electronic device (200) to relatively minimize the loss of light incident on the light irradiation area (460). The second angle can be set to an angle such that light of multiple wavelengths passing through the first lens (471) at a first angle can pass through the second lens (472) and be incident on the light irradiation area (460) at a substantial single point.

[0157] In one embodiment, the processor (120) can control light of multiple wavelength bands incident on the second lens (472) at a second angle to be incident toward the light irradiation area (460) (1200). The light irradiation area (460) may include a part of the user's body, for example, a wrist, skin, blood, or interstitial nucleus, in consideration of the purpose of the present invention for measuring non-invasive bio-information (components). However, it is not limited thereto, and may also include an area where the user's body information, for example, blood sugar, protein, lactic acid, alcohol, glucose, hemoglobin, bilirubin, cholesterol, albumin, creatinine, glycated hemoglobin, etc., can be measured.

[0158] FIG. 14 is a flowchart illustrating a method for obtaining user biometric information in a wearable electronic device according to one embodiment of the present disclosure.

[0159] In the following embodiments, each operation of FIG. 14 may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation of FIG. 14 may be changed, and at least two operations may be performed in parallel.

[0160] According to one embodiment, the 2000 to 2400 operations of FIG. 14 may be understood to be performed in a processor (120) of an electronic device (e.g., the electronic device (101) of FIG. 1 and the wearable electronic device (200) of FIG. 5).

[0161] Since the 2000 to 2200 operations of FIG. 14 according to one embodiment are substantially the same as the 1000 to 1200 operations of FIG. 13 described above, a detailed description thereof may be replaced by the description of FIG. 13.

[0162] In one embodiment, the photodetector (450) can detect wavelength band and intensity information of light reflected by light of multiple wavelength bands incident on the second lens (472) at a second angle toward the light irradiation area (460) (2300). The photodetector (450) can detect the intensity and wavelength band of light reflected by the light irradiation area (460) and transmit this to the processor (120).

[0163] In one embodiment, the processor (120) can generate at least one biological information (2400) by analyzing the wavelength band and intensity information of light received through the light detector (450). The at least one biological information may include, but is not limited to, in vivo components, blood sugar, protein, lactic acid, alcohol, glucose, hemoglobin, protein, cholesterol, albumin, triglycerides, creatinine, and / or glycated hemoglobin.

[0164] FIG. 15 is a flowchart illustrating a method for obtaining user biometric information in a wearable electronic device according to one embodiment of the present disclosure.

[0165] In the following embodiments, each operation of FIG. 15 may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation of FIG. 15 may be changed, and at least two operations may be performed in parallel.

[0166] According to one embodiment, the 3000 to 3600 operations of FIG. 15 may be understood to be performed in a processor (120) of an electronic device (e.g., the electronic device (101) of FIG. 1 and the wearable electronic device (200) of FIG. 5).

[0167] Since the 3100 to 3500 operations of FIG. 15 according to one embodiment are substantially the same as the 2000 to 2400 operations of FIG. 14 described above, a detailed description thereof may be replaced by the description of FIG. 14.

[0168] In one embodiment, the processor (120) can determine whether to receive a request for biometric information from a user of the wearable electronic device (200) (3000).

[0169] In one embodiment, when the processor (120) receives a request for biometric information from a user (e.g., 3000), it can control light of multiple wavelength bands output from at least one laser light source (505) to pass through multiple grating couplers (540), a first lens (471), and a second lens (472) toward a light irradiation area (460) (3100 to 3300).

[0170] In one embodiment, the photodetector (450) can detect wavelength band and intensity information of light reflected when light of multiple wavelength bands incident on the second lens (472) at a second angle is incident toward the light irradiation area (3400). The photodetector (450) can detect the intensity and wavelength band of the light reflected by the light irradiation area and transmit this to the processor (120).

[0171] In one embodiment, the processor (120) can generate at least one biological information (3500) by analyzing the wavelength band and intensity information of light received through the light detector (450). The biological information may include, but is not limited to, in vivo components, blood glucose, protein, lactic acid, alcohol, glucose, hemoglobin, protein, cholesterol, albumin, triglycerides, creatinine, and / or glycated hemoglobin.

[0172] In one embodiment, the processor (120) can provide biometric information to the user by displaying at least one biometric information on the display (160) of the wearable electronic device (200) (3600).

[0173] FIG. 16 is a drawing for illustrating a display for displaying user biometric information in a wearable electronic device according to one embodiment of the present disclosure.

[0174] Referring to FIG. 16, a processor (e.g., processor (120) of FIG. 5) of a wearable electronic device (e.g., wearable electronic device (200) of FIG. 2 and 3) may provide at least one biometric information obtained based on the intensity and wavelength band of light reflected by a light irradiation area (460) detected through a photodetector (e.g., photodetector (450) of FIG. 5). For example, the processor (120) may display at least one biometric information on a display (e.g., display (160) of FIG. 1 / display (160) of FIG. 5) to provide biometric information to a user and assist in the user's health management.

[0175] In one embodiment, at least one biological information is described by assuming it to be blood glucose information. For example, the processor (120) of FIG. 16 <4000> As illustrated in Fig. 16, blood glucose information can be displayed on the display (160) as an hourly graph. As another example, the processor (120) of Fig. 16 <4100> As illustrated in [Image], continuous blood glucose information can be displayed on the display (160) as a graph over time.

[0176] A wearable electronic device according to an embodiment of the present disclosure may include a cover glass, a second lens connected to the cover glass and having at least a portion exposed to the outside of the wearable electronic device, a first lens located below the second lens having the same central axis as the second lens, a photonic integrated circuit, and a photodetector. The photonic integrated circuit of the wearable electronic device may include at least one laser light source and a plurality of grating couplers that transmit light of multiple wavelength bands output through at least one laser light source to the first lens. The plurality of grating couplers of the photonic integrated circuit may be formed so that light of multiple wavelength bands output through at least one laser light source is incident on the first lens at a first angle. The first lens of the photonic integrated circuit may be formed so that light of multiple wavelength bands incident at the first angle is incident on the second lens at a second angle, and the second lens may be formed so that light of multiple wavelength bands incident at the second angle is incident toward a light irradiation area.

[0177] A plurality of grating couplers, a first lens, and a second lens of a wearable electronic device according to an embodiment of the present disclosure may have the same central axis.

[0178] Each of the plurality of grating couplers of a wearable electronic device according to an embodiment of the present disclosure may be located on the optical path of each of the plurality of wavelength bands of light output through at least one laser light source.

[0179] A plurality of grating couplers of a wearable electronic device according to an embodiment of the present disclosure may be arranged in a circular shape.

[0180] A first lens of a wearable electronic device according to an embodiment of the present disclosure includes a plurality of rod-shaped lenses, and the plurality of rod-shaped lenses may be arranged in a truncated cone shape.

[0181] A first lens of a wearable electronic device according to an embodiment of the present disclosure includes a plurality of rod-shaped lenses, and the number of a plurality of grating couplers may be the same as the number of a plurality of rod-shaped lenses.

[0182] A first lens of a wearable electronic device according to an embodiment of the present disclosure includes a plurality of rod-shaped lenses, and each of the plurality of rod-shaped lenses may correspond to each of a plurality of grating couplers.

[0183] The upper curvature of the second lens of a wearable electronic device according to an embodiment of the present disclosure can be formed to be the same as the upper curvature of the cover glass.

[0184] The upper curvature of the second lens of a wearable electronic device according to an embodiment of the present disclosure may be formed differently from the lower curvature of the second lens.

[0185] A plurality of grating couplers, a first lens, and a second lens of a wearable electronic device according to an embodiment of the present disclosure may have an anti-reflective coating.

[0186] A photodetector of a wearable electronic device according to an embodiment of the present disclosure may have the same central axis and be positioned between a plurality of grating couplers and a first lens.

[0187] A photodetector of a wearable electronic device according to an embodiment of the present disclosure can detect wavelength band and intensity information of light reflected in a light irradiation area.

[0188] In a wearable electronic device according to an embodiment of the present disclosure, the light irradiation area may include at least one of the user's blood or interstitial nucleus.

[0189] A wearable electronic device according to an embodiment of the present disclosure further comprises a memory for storing instructions and a processor; wherein, when the instructions are executed by the processor, the wavelength band and intensity information of light detected by a photodetector is analyzed, and at least one bio-information can be obtained based on the analyzed wavelength band and intensity information of light.

[0190] In a wearable electronic device according to an embodiment of the present disclosure, at least one biometric information may include at least one of blood glucose, protein, alcohol, glucose, hemoglobin, cholesterol, or glycated hemoglobin.

[0191] A wearable electronic device according to an embodiment of the present disclosure further includes a display, and when instructions are executed by a processor, at least one biometric information is obtained based on wavelength band and intensity information of light analyzed upon receiving a request for biometric information from a user, and the obtained at least one biometric information can be displayed on the display.

[0192] A method for acquiring biometric information using a wearable electronic device according to one embodiment of the present disclosure can analyze wavelength band and intensity information of light detected by a photodetector after being output through a plurality of laser sources, passing through a plurality of grating couplers, a first lens, and a second lens, and being reflected from a light irradiation area. According to one embodiment of the present disclosure, at least one biometric information can be acquired based on the analyzed wavelength band and intensity information of the light.

[0193] A non-transient computer-readable storage medium storing one or more programs for acquiring biometric information in a wearable electronic device (200) according to one embodiment may include a command for analyzing wavelength band and intensity information of light detected by a light detector after being output through a plurality of laser sources, passing through a plurality of grating couplers, a first lens, and a second lens, and being reflected from a light irradiation area, when executed by at least one processor of the wearable electronic device. One or more programs according to one embodiment may include a command for acquiring at least one biometric information based on the analyzed wavelength band and intensity information of light.

[0194] The electronic device according to the various embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.

[0195] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said 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 said items unless the relevant context clearly indicates otherwise. In this document, phrases such as “or B,” “at least one of and B,” “or at least one of B,” “A, B, or C,” “at least one of B and C,” and “at least one of B or C” may each include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as “first,” “second,” or “first” or “second” may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0196] The term “module” as used in the 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, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. According to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0197] Various embodiments of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated 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 that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0198] According to one embodiment, the method according to the various embodiments disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer 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 an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0199] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components 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 a wearable electronic device (200) Cover glass (473); A second lens (472) connected to the cover glass and at least a portion of which is exposed to the outside of the wearable electronic device; A first lens (471) having the same central axis as the second lens and located below the second lens; Photonic integrated circuit (441); and Includes a photodetector (450); The above photonic integrated circuit is, It includes at least one laser light source (505) and a plurality of grating couplers (540) that transmit light of multiple wavelength bands output through the at least one laser light source to the first lens, The above plurality of grating couplers are, Light of multiple wavelength bands output through the above-mentioned at least one laser light source is formed to be incident on the first lens at a first angle, and The first lens above is, It is formed so that light of the plurality of wavelength bands incident at the first angle is incident on the second lens at the second angle, and The above second lens is, A wearable electronic device formed such that light of the plurality of wavelength bands incident at the second angle is incident toward a light irradiation area (460).

2. In Paragraph 1, A wearable electronic device having the plurality of grating couplers, the first lens, and the second lens having the same central axis.

3. In Paragraph 1, A wearable electronic device in which each of the plurality of grating couplers is located on the optical path of each of the plurality of wavelength bands of light output through the at least one laser light source.

4. In Paragraph 1, The above plurality of grating couplers are a wearable electronic device arranged in a circular pattern.

5. In Paragraph 1, The first lens above includes a plurality of rod-shaped lenses arranged in a truncated cone shape, and Each of the above plurality of rod-shaped lenses corresponds to each of the above plurality of grating couplers, and A wearable electronic device in which the number of the plurality of grating couplers is the same as the number of the plurality of rod-shaped lenses.

6. In Paragraph 1, The upper curvature of the second lens above is A wearable electronic device formed to have the same upper curvature as the cover glass and different from the lower curvature of the second lens.

7. In Paragraph 1, A wearable electronic device comprising the plurality of grating couplers, the first lens, and the second lens, which are coated with an anti-reflective light coating.

8. In Paragraph 1, The above light detector is, A wearable electronic device having the same central axis and positioned between the plurality of grating couplers and the first lens.

9. In Paragraph 1, The above photodetector detects wavelength band and intensity information of light reflected from the light irradiation area, and The above-described wearable electronic device further includes a memory (130) for storing instructions and a processor (120); and When the above instructions are executed by the processor, Analyze the wavelength band and intensity information of light detected by the above photodetector, and A wearable electronic device that acquires at least one bio-information based on the wavelength band and intensity information of the light analyzed above.

10. In Paragraph 1, The above light irradiation area is a wearable electronic device comprising at least one of the user's blood or interstitial nucleus.

11. In Paragraph 9, A wearable electronic device comprising at least one of the above-mentioned bio-information, blood glucose, protein, alcohol, glucose, hemoglobin, cholesterol, or glycated hemoglobin.

12. In Paragraph 9, The above-mentioned wearable electronic device further includes a display (160), and When the above instructions are executed by the processor, A wearable electronic device that displays at least one acquired biometric information on the display.

13. In Paragraph 9, The above-mentioned wearable electronic device further includes a display (160), and When the above instructions are executed by the processor, Upon receiving a request for biometric information from a user, at least one biometric information is obtained based on the wavelength band and intensity information of the analyzed light, and A wearable electronic device that displays at least one acquired biometric information on the display.

14. A method for obtaining biometric information from a wearable electronic device (200), The operation of analyzing wavelength band and intensity information of light detected by a photodetector after a plurality of laser sources pass through a plurality of grating couplers, a first lens, and a second lens and are reflected from a light irradiation area; and A method comprising the operation of acquiring at least one biological information based on the wavelength band and intensity information of the light analyzed above.

15. A non-transient computer-readable storage medium for storing one or more programs for acquiring biometric information in a wearable electronic device (200), When one or more of the above programs are executed by the processor (120) of the wearable electronic device (200), An operation of analyzing wavelength band and intensity information of light detected by a photodetector after being output through a plurality of laser sources, passing through a plurality of grating couplers, a first lens, and a second lens, and reflecting from a light irradiation area; and A computer-readable storage medium comprising instructions for performing the operation of acquiring at least one bio-information based on the wavelength band and intensity information of the analyzed light.

Images