WO2023106698A1 - Procédé de détection d'empreinte digitale et dispositif électronique - Google Patents

Procédé de détection d'empreinte digitale et dispositif électronique Download PDF

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Publication number
WO2023106698A1
WO2023106698A1 PCT/KR2022/018617 KR2022018617W WO2023106698A1 WO 2023106698 A1 WO2023106698 A1 WO 2023106698A1 KR 2022018617 W KR2022018617 W KR 2022018617W WO 2023106698 A1 WO2023106698 A1 WO 2023106698A1
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WIPO (PCT)
Prior art keywords
fingerprint
electronic device
sensor
user
light
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Application number
PCT/KR2022/018617
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English (en)
Korean (ko)
Inventor
조규상
이광섭
박지혜
Original Assignee
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from KR1020220008745A external-priority patent/KR20230085042A/ko
Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Publication of WO2023106698A1 publication Critical patent/WO2023106698A1/fr

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/04—Mounting of electronic components
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/08—Housings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/02—Detectors of external physical values, e.g. temperature
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor

Definitions

  • Various embodiments of the present disclosure relate to a fingerprint sensing method and an electronic device.
  • a wearable electronic device may have a fingerprint sensor disposed in an internal space within a limited size, and perform a fingerprint authentication function for a user through the fingerprint sensor.
  • the electronic device includes a wearable electronic device that is at least partially mounted on a user's body, and the wearable electronic device may include a watch worn on a wrist.
  • the wearable electronic device is worn on the wrist, and the front glass exposed to the outside may be designed to be thick (eg, about 2-3 mm) in preparation for external impact that may occur in real life.
  • An electronic device may have a fingerprint sensor disposed under a display module and obtain user's fingerprint information through the front glass.
  • the electronic device may obtain a fingerprint image based on a user's touch input on the front glass and perform a user authentication operation based on the obtained fingerprint image.
  • the electronic device may have low accuracy in performing the user authentication operation.
  • An electronic device needs to provide guide information to a user in order to obtain a fingerprint image suitable for user authentication.
  • a wearable electronic device includes a display module, a fingerprint sensor disposed on a rear surface of the display module, a wearing detection sensor, a pressure sensor, a memory, and the display module, the fingerprint sensor, the wearing detection sensor, and the pressure A sensor and a processor electrically coupled to the memory may be included.
  • the processor determines whether the wearable electronic device is worn through the wearing detection sensor, activates the pressure sensor in response to the wearing, and detects the fingerprint
  • a first pressure value of the user input is measured through the pressure sensor, and whether the measured first pressure value exceeds a set threshold value is determined; If it does not exceed the set threshold value, guide information requesting a user input of the second pressure value exceeding the set threshold value may be displayed.
  • the wearable electronic device in response to execution of a fingerprint sensing function for a fingerprint sensor disposed under a display module of the wearable electronic device, the wearable electronic device through a wearing detection sensor Operation of confirming whether the wearable electronic device is worn, operation of activating a pressure sensor in response to wearing of the wearable electronic device, and operation of the user input through the pressure sensor in response to a user input according to execution of the fingerprint sensing function
  • An operation of measuring a first pressure value, an operation of checking whether the measured first pressure value exceeds a set threshold value, and a second input value exceeding the set threshold value if it does not exceed the set threshold value It may include an operation of displaying guide information requesting user input.
  • Various embodiments of the present invention may provide guide information to a user so that a fingerprint image suitable for user authentication may be obtained by using a fingerprint sensor disposed under a display module in an electronic device (eg, a wearable electronic device).
  • the electronic device may display guide information through a display module so that a pressure sensor is disposed in an internal space and a user input occurs at a level exceeding a set threshold.
  • the electronic device may obtain fingerprint information of the user based on a user input having a pressure of a certain level or higher, and improve accuracy of the user authentication operation.
  • the electronic device when acquiring a fingerprint according to a user input, may provide guide information to the user so that a pressure of a certain level or higher is applied, and as a clearer fingerprint image is acquired due to the pressure, user authentication is performed. Accuracy of operation can be improved. In addition to this, various effects identified directly or indirectly through this document may be provided.
  • FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.
  • FIG. 2A is a perspective view of the front of an electronic device according to various embodiments of the present disclosure.
  • 2B is a perspective view of a rear surface of an electronic device according to various embodiments of the present disclosure.
  • FIG 3 is an exploded perspective view of an electronic device according to various embodiments of the present disclosure.
  • FIG. 4 is a block diagram of an electronic device according to various embodiments of the present disclosure.
  • FIG. 5 is a flowchart illustrating a method of displaying guide information such that pressure of a certain level or higher is applied to a user input in performing a user authentication operation according to various embodiments of the present disclosure.
  • 6A is a first flowchart illustrating a method of updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure.
  • 6B is a second flowchart illustrating a method of updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure.
  • FIG. 7A is a first flowchart illustrating a method of determining whether an acquired fingerprint image is suitable for a user authentication operation and updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure; .
  • 7B is a second flowchart illustrating a method of determining whether an acquired fingerprint image is suitable for a user authentication operation and updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure; .
  • FIG. 8 is a cross-sectional view of an electronic device taken along line A-A′ of FIG. 2A according to various embodiments of the present disclosure.
  • FIG. 9 is an exemplary view illustrating an operation of measuring a pressure value according to a user input using a pressure sensor according to various embodiments of the present disclosure.
  • FIG. 10 is an exemplary diagram illustrating an electrical connection structure between a main board and a sub board on which a wear detection sensor is disposed, according to various embodiments of the present disclosure.
  • FIG. 11 is an exemplary view illustrating an arrangement structure in which a sub-board, a charging coil, a pressure sensor, and/or a rear glass are at least partially laminated, on which a wearing detection sensor is disposed, according to various embodiments of the present disclosure.
  • FIG. 12 is an exemplary diagram illustrating a laminated structure for a pressure sensor according to various embodiments of the present disclosure.
  • FIG. 1 is a block diagram of an electronic device 101 within a network environment 100, according to various embodiments.
  • an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 .
  • a first network 198 eg, a short-range wireless communication network
  • the server 108 e.g, a long-distance wireless communication network
  • the electronic device 101 includes 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), 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 the antenna module 197 may be included.
  • at least one of these components eg, the connection terminal 178) may be omitted or one or more other components may be added.
  • some of these components eg, sensor module 176, camera module 180, or antenna module 197) are integrated into a single component (eg, display module 160). It can be.
  • the processor 120 for example, executes software (eg, the program 140) to cause at least one other component (eg, hardware or software component) of the electronic device 101 connected to the processor 120. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 .
  • software eg, the program 140
  • processor 120 transfers instructions or data received from other components (e.g., sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 .
  • the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor).
  • a main processor 121 eg, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, a neural network processing unit ( NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor.
  • NPU neural network processing unit
  • the secondary processor 123 may use less power than the main processor 121 or be set to be specialized for a designated function.
  • the secondary processor 123 may be implemented separately from or as part of the main processor 121 .
  • the secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states.
  • the auxiliary processor 123 eg, an image signal processor or a communication processor
  • the auxiliary processor 123 may include a hardware structure specialized for processing an artificial intelligence model.
  • AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108).
  • the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited.
  • the artificial intelligence model may include a plurality of artificial neural network layers.
  • Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples.
  • the artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.
  • the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 .
  • the data may include, for example, input data or output data for software (eg, program 140) and commands related thereto.
  • the memory 130 may include volatile memory 132 or non-volatile memory 134 .
  • 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 .
  • the input module 150 may receive a command or data to be used by a component (eg, the processor 120) of the electronic device 101 from the outside of the electronic device 101 (eg, a user).
  • the input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
  • the sound output module 155 may output sound signals to the outside of the electronic device 101 .
  • the sound output module 155 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback.
  • a receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.
  • the display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user).
  • the display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device.
  • the display module 160 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch.
  • the audio module 170 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).
  • the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).
  • the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do.
  • the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a bio sensor, It may include a temperature sensor, humidity sensor, or light sensor.
  • the interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102).
  • 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.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card interface
  • audio interface audio interface
  • connection terminal 178 may include a connector through which the electronic device 101 may be physically connected to an external electronic device (eg, the electronic device 102).
  • the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 may capture still images and moving images. According to one embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 188 may manage power supplied to the electronic device 101 .
  • the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101 .
  • the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). Establishment and communication through the established communication channel may be supported.
  • the communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
  • the communication module 190 may be a wireless communication module 192 (eg, 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 (eg, a : a local area network (LAN) communication module or a power line communication module).
  • a wireless communication module 192 eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module
  • GNSS global navigation satellite system
  • wired communication module 194 eg, a : a local area network (LAN) communication module or a power line communication module.
  • a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a telecommunications network such as a computer network (eg, a LAN or a WAN).
  • a telecommunications network such as a computer network (eg, a LAN or a WAN).
  • These various types of communication modules may be integrated as one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips).
  • the wireless communication module 192 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199.
  • subscriber information eg, International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the electronic device 101 may be identified or authenticated.
  • the wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, NR access technology (new radio access technology).
  • NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)).
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low latency
  • -latency communications can be supported.
  • the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
  • the wireless communication module 192 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported.
  • the wireless communication module 192 may support various requirements defined for the electronic device 101, an external electronic device (eg, the electronic device 104), or a network system (eg, the second network 199).
  • the wireless communication module 192 may be used to realize peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency (for realizing URLLC).
  • peak data rate eg, 20 Gbps or more
  • loss coverage eg, 164 dB or less
  • U-plane latency for realizing URLLC.
  • DL downlink
  • UL uplink each of 0.5 ms or less, or round trip 1 ms or less
  • the antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device).
  • the antenna module 197 may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB).
  • the antenna module 197 may include a plurality of antennas (eg, 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 is selected from the plurality of antennas by the communication module 190, for example. can be chosen 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.
  • other components eg, a radio frequency integrated circuit (RFIC) may be additionally formed as a part of the antenna module 197 in addition to the radiator.
  • RFIC radio frequency integrated circuit
  • the antenna module 197 may form a mmWave antenna module.
  • the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a lower surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
  • peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • signal e.g. commands or data
  • commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 .
  • Each of the external electronic devices 102 or 104 may be the same as or different from the electronic device 101 .
  • all or part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 .
  • the electronic device 101 when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself.
  • one or more external electronic devices may be requested to perform the function or at least part of the service.
  • One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 101 .
  • the electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed.
  • cloud computing distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
  • the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
  • the external electronic device 104 may include an internet of things (IoT) device.
  • Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199 .
  • the electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
  • FIG. 2A is a perspective view of the front of an electronic device 200 according to various embodiments of the present disclosure.
  • FIG. 2B is a perspective view of the back of the electronic device 200 of FIG. 2A according to various embodiments of the present disclosure.
  • the electronic device 200 of FIGS. 2A and 2B may be at least partially similar to the electronic device 101 of FIG. 1 or may further include other embodiments of the electronic device.
  • the electronic device 200 includes a first surface (or a front surface, a surface viewed from above in a downward direction (eg, -z direction)) 210A, and a second surface (or a rear surface, a surface viewed from bottom to top (eg, z direction)) 210B, and a side surface 210C surrounding the space between the first surface 210A and the second surface 210B.
  • the housing 210 and coupling members 250 and 260 connected to at least a portion of the housing 210 and detachably coupling the electronic device 200 to a part of the user's body (eg, wrist, ankle, etc.) (eg, a strap, a connecting member, and/or a coupling member).
  • the housing 210 may refer to a structure forming some of the first face 210A, the second face 210B, and the side face 210C of FIG. 2A.
  • the first surface 210A may be formed by a front plate 201 (eg, a glass plate or a polymer plate including various coating layers) that is substantially transparent at least in part.
  • the second face 210B may be formed by the substantially opaque back plate 207 .
  • the back plate 207 may be, for example, coated or tinted glass, ceramic, polymer, metal (eg, aluminum, stainless steel (STS), or magnesium), and/or a combination of at least two of the foregoing. can be formed by
  • the side surface 210C may be formed by a side bezel structure (or "side member") 206 coupled to the front plate 201 and the rear plate 207 and including metal and/or polymer.
  • the back plate 207 and the side bezel structure 206 may be integrally formed and include the same material (eg, a metal material such as aluminum).
  • the binding members 250 and 260 may be formed of various materials and shapes. Integral and plurality of unit links may be formed to flow with each other by woven material, leather, rubber, urethane, metal, ceramic, or a combination of at least two of the above materials.
  • the electronic device 200 includes a display 220 (eg, the display module 160 of FIG. 1 ), audio modules 205 and 208 (eg, the audio module 170 of FIG. 1 ), sensor module 211 (e.g. sensor module 176 in FIG. 1), key input devices 202, 203, 204 (e.g. input module 150 in FIG. 1) and connector hole 209 (e.g. FIG. At least one of the connection terminals 178 of 1) may be included.
  • the electronic device 200 may omit or omit at least one of the components (eg, the key input devices 202, 203, and 204, the connector hole 209, and/or the sensor module 211). Other components may be additionally included.
  • Display 220 may be visible, for example, through a substantial portion of front plate 201 .
  • the shape of the display 220 may be a shape corresponding to the shape of the front plate 201, and may have various shapes such as a circular shape, an oval shape, and/or a polygonal shape.
  • the display 220 may be coupled to or disposed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and/or a fingerprint sensor.
  • the audio modules 205 and 208 may include a microphone hole 205 and a speaker hole 208 .
  • a microphone for acquiring external sound may be disposed inside the microphone hole 205, and in some embodiments, a plurality of microphones may be disposed to detect the direction of sound.
  • the speaker hole 208 can be used as an external speaker and a receiver for a call.
  • the speaker hole 208 and the microphone hole 205 may be implemented as one hole, or a speaker may be included without the speaker hole 208 (eg, a piezo speaker).
  • the sensor module 211 may generate electrical signals and/or data values corresponding to an internal operating state of the electronic device 200 or an external environmental state.
  • the sensor module 211 may include, for example, a biometric sensor module 211 (eg, an HRM sensor) disposed on the second surface 210B of the housing 210 .
  • the electronic device 200 includes a sensor module not shown, for example, a Hall sensor (eg, Hall IC, Hall IC), a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, At least one of an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, and/or an illuminance sensor may be further included.
  • a Hall sensor eg, Hall IC, Hall IC
  • a gesture sensor e.g, a gesture sensor
  • a gyro sensor e.gyro sensor
  • an air pressure sensor e.g
  • the key input devices 202, 203, and 204 include an annular member 202 disposed on the first surface 210A of the housing 210 and rotatable in at least one direction (eg, a bezel housing, a rotary wheel) , wheel keys), and/or side key buttons 203 and 204 (eg, physical buttons) disposed on the side surface 210C of the housing 210.
  • the annular member 202 may have a shape corresponding to that of the front plate 201 .
  • the annular member 202 may rotate clockwise or counterclockwise about the center of the display 220 as an axis.
  • the electronic device 200 may not include some or all of the above-mentioned key input devices 202, 203, and 204, and the key input devices 202, 203, and 204 that are not included may It may be implemented in other forms such as soft keys on the display 220 .
  • the connector hole 209 may accommodate a connector (eg, a USB connector) for transmitting and receiving power and/or data to and from an external electronic device (eg, the electronic devices 102 and 104 of FIG. 1 ) and may accommodate an external electronic device. It may include another connector hole (not shown) capable of accommodating a connector for transmitting and receiving an audio signal to and from the device.
  • the electronic device 200 may further include, for example, a connector cover (not shown) that covers at least a portion of the connector hole 209 and blocks external foreign substances from entering the connector hole.
  • the binding members 250 and 260 may be detachably attached to at least a partial region of the housing 210 using the locking members 251 and 261 .
  • the fastening members 250 and 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 fix the housing 210 and the fastening members 250 and 260 to a part of the user's body (eg, wrist, ankle, etc.).
  • the fixing member fastening hole 253 corresponds to the fixing member 252 to fix the housing 210 and the fastening members 250 and 260 to a part of the user's body.
  • the band guide member 254 is configured to limit the movement range of the fixing member 252 when the fixing member 252 is fastened to the fixing member fastening hole 253, so that the fastening members 250 and 260 are attached to a part of the user's body. It can be tightly bonded.
  • the band fixing ring 255 may limit the movement range of the fastening members 250 and 260 in a state in which the fixing member 252 and the fixing member fastening hole 253 are fastened.
  • FIG. 3 is an exploded perspective view of an electronic device (eg, the electronic device 200 of FIG. 2A ) according to various embodiments of the present disclosure.
  • the electronic device 200 of FIG. 3 may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • a connection member similar to that of FIG. 2A may be applied to the electronic device 200 of FIG. 3 , but it will be omitted for convenience of description.
  • a front cover 311 may be disposed corresponding to a first surface (or a front surface, a surface viewed from top to bottom (eg, -z direction)) 210A
  • the rear cover 312 may be disposed corresponding to the second surface (or the rear surface, the surface viewed from the bottom to the top (eg, z direction)) 210B.
  • the electronic device 200 includes a front cover 311, a rear cover 312, a side member 206, a support member (eg, a bracket) 310, a display module (eg, the display 220 of FIG. 2A).
  • the electronic device 200 may include a form in which the fingerprint sensor 350 is disposed below the display module 220 and may be disposed in a form in which at least one component is stacked.
  • a front glass 321 may be disposed on the front cover 311 corresponding to the first surface 210A, and on the rear cover 312 on the second surface 210B.
  • a rear glass 322 may be disposed.
  • the front glass 321 is a member exposed to the external environment and may be designed to have a certain thickness (eg, about 2-3 mm) in order to protect internal components of the electronic device 200 from external impact.
  • the rear glass 322 may be a component that directly contacts the user's skin when the electronic device 200 is worn on the user's wrist.
  • the electronic device 200 may obtain user fingerprint information through the front glass 321.
  • the electronic device 200 may display guide information for obtaining a fingerprint image through the display module 220 .
  • a user may touch a finger including a fingerprint on the front glass 321 according to the guide information.
  • the electronic device 200 may obtain a user's fingerprint image input to the front glass 321 using the fingerprint sensor 350 and perform a user authentication operation based on the acquired fingerprint image.
  • the user authentication operation based on the fingerprint sensor 350 may be performed using at least one of an optical method and/or an ultrasonic method.
  • the optical method may be a method of performing a user authentication operation based on a difference in light reflection amount (eg, negative or zero) on the ridge and valley surfaces of the fingerprint.
  • the ultrasonic method may be a method of electronically discriminating the difference between the ultrasonic reflection amount on the ridge and bone surface of the fingerprint and performing a user authentication operation according to the classification.
  • the electronic device 200 may provide guide information according to a user authentication operation to the user in order to obtain a fingerprint image suitable for the user authentication operation.
  • the electronic device 200 may be implemented in a form in which the fingerprint sensor 350 is at least partially disposed under the display module 220 .
  • the fingerprint sensor 350 may be disposed in a downward direction (eg, -z direction) with respect to the display panel 320 of the display module 220 .
  • the fingerprint sensor 350 may be disposed physically adjacent to a rear surface (eg, a surface corresponding to a downward direction) of the display panel 320 .
  • the fingerprint sensor 350 is disposed in a form that is at least partially attached to the rear surface of the display panel 320, or is at least partially coupled to the support member 310 (eg, a bracket) and displays the panel. It may be arranged in a form close to the rear surface of (320).
  • the electronic device 200 may perform a user authentication operation using the fingerprint sensor 350 (eg, an optical fingerprint sensor or an ultrasonic fingerprint sensor).
  • the fingerprint sensor 350 eg, an optical fingerprint sensor or an ultrasonic fingerprint sensor.
  • light (light) emitted from the display module 220 may be reflected on the user's fingerprint contacting the front glass 321, and the reflected light may at least partially transmit through the display module 220.
  • the fingerprint sensor 350 may obtain fingerprint information (eg, a fingerprint image) of the user based on transmitted light.
  • ultrasonic waves generated from the fingerprint sensor 350 eg, an ultrasonic fingerprint sensor
  • the generated ultrasonic waves may be incident to the fingerprint sensor 350 .
  • the fingerprint sensor 350 may measure the amount of incident ultrasound and obtain fingerprint information of the user based on the measured amount of ultrasound.
  • At least one printed circuit board 330 may be disposed in an inner space of the housing 210 (eg, the housing 210 of FIG. 2A ),
  • the printed circuit board 330 may include a main board and/or a sub board.
  • the main board and the sub board may be electrically connected, and a wearing detection sensor 312 may be disposed on one surface of the sub board.
  • the electronic device 200 includes a wearable watch worn on a user's wrist, and when worn, the rear cover 312 and the rear glass 322 are in direct contact with the wrist. can be worn as The electronic device 200 may include a wearing detection sensor 312 for determining whether the electronic device 200 is worn on the user's wrist.
  • the wearing detection sensor 312 may be fixed in a state of being at least partially coupled to a sub-board disposed on a rear surface (eg, a surface corresponding to a downward direction) of the printed circuit board 330 .
  • the wearing detection sensor 312 may pass through the rear glass 322 and detect whether or not the user's wrist is in physical contact with the rear glass 322 .
  • the electronic device 200 may measure a pressure value corresponding to a user input using the pressure sensor 314 .
  • the pressure sensor 314 may measure pressure generated between the rear cover 312 of the electronic device 200 and the user's wrist.
  • the pressure sensor 314 may be disposed adjacent to the rear cover 312 in order to more accurately measure pressure according to a user input.
  • the pressure sensor 314 may be placed in physical contact with the rear cover 312 .
  • the pressure sensor 314 may be disposed between the rear cover 312 and the charging coil 313, and may be implemented based on the shape and size of the charging coil 313.
  • the pressure sensor 314 and the charging coil 313 may be formed in a shape including a circular opening in the center.
  • the pressure sensor 314 may be at least partially supported by the charging coil 313 and may measure pressure generated between the rear cover 312 and a human body (eg, wrist).
  • the charging coil 313 may include a coil for wireless charging and may be used for wireless charging of the battery 340 .
  • the electronic device 200 supports a wireless charging function, and when the wireless charging function is executed, the battery 340 may be wirelessly charged using the charging coil 313 .
  • the electronic device 200 may measure a pressure value according to a user input (eg, a user input for providing fingerprint information to the electronic device 200). Guide information may be displayed through the display module 220 so that the user input occurs when the pressure value exceeds a set threshold value. For example, as the pressure applied to the user input increases, a fingerprint image containing fingerprint information may be more clearly input to the electronic device 200, and the accuracy of a user authentication operation based on the fingerprint image may be improved. .
  • a user input eg, a user input for providing fingerprint information to the electronic device 200.
  • Guide information may be displayed through the display module 220 so that the user input occurs when the pressure value exceeds a set threshold value. For example, as the pressure applied to the user input increases, a fingerprint image containing fingerprint information may be more clearly input to the electronic device 200, and the accuracy of a user authentication operation based on the fingerprint image may be improved.
  • FIG. 4 is a block diagram of an electronic device according to various embodiments of the present disclosure.
  • the electronic device 101 of FIG. 4 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • the electronic device 101 is a watch in which an annular member (annular member 202 in FIG. 2A ) is at least partially disposed in a housing including a circular opening (eg, housing 210 in FIG. 2A ). It may include a wearable electronic device in the form of a watch.
  • a fingerprint sensor 411 eg, the fingerprint sensor 350 of FIG. 3
  • the electronic device 101 touches the user through the display module 160 (eg, the display 220 of FIG. 2A or the display module 220 of FIG. 3 ). Guide information leading to an input may be displayed, and a user authentication operation may be performed based on a user's touch input.
  • the electronic device 101 includes a processor 120 (eg, the processor 120 of FIG. 1 ), a memory 130 (eg, the memory 130 of FIG. 1 ), a display module 160, and/or sensor module 176 (eg, sensor module 176 of FIG. 1 ).
  • the sensor module 176 includes a fingerprint sensor 411 (eg, the fingerprint sensor 350 of FIG. 3 ), a wearing detection sensor 412 (eg, the wearing detection sensor 312 of FIG. 3 ) and a pressure sensor 413 ( Example: pressure sensor 314 of FIG. 3).
  • the processor 120 may execute a program (eg, the program 140 of FIG. 1 ) stored in the memory 130 to control at least one other component (eg, a hardware or software component) and obtain various data. Can perform processing or calculations. For example, the processor 120 may use the wearing detection sensor 412 to determine whether the electronic device 101 is in physical contact with the user's wrist, and whether or not the electronic device 101 is worn. can decide The processor 120 may measure a pressure value applied to the user's touch input using the pressure sensor 413 in response to the user's touch input, and if the pressure value exceeds a set threshold value, the fingerprint sensor ( 411) may perform a user authentication operation.
  • a program eg, the program 140 of FIG. 1
  • the processor 120 may use the wearing detection sensor 412 to determine whether the electronic device 101 is in physical contact with the user's wrist, and whether or not the electronic device 101 is worn. can decide The processor 120 may measure a pressure value applied to the user's touch input using the pressure sensor 413 in response to the user's touch input,
  • the memory 130 may store or update data for determining whether the electronic device 101 is worn on the user's wrist. For example, the memory 130 may store data measurable by the wearing detection sensor 412 .
  • the memory 130 may store a threshold value set to compare or analyze a pressure value applied to a user's touch input. For example, when the set threshold is updated, the updated threshold may be stored in the memory 130 .
  • the display module 160 may be disposed in a form that is at least partially coupled to a front cover constituting the housing 210 of the electronic device 101 (eg, the front cover 311 of FIG. 3 ).
  • the display module 160 is disposed in the downward direction (eg, -z direction) of the front cover 311 and is attached to the front cover 311 (eg, the front glass 321 of FIG. 3 ). )), it may be in a state of being protected from external impact.
  • the processor 120 may display guide information for inducing a user's touch input through the display module 160 when a user authentication operation is performed.
  • the guide information may include a fingerprint image and be displayed so that the user's finger can physically contact the front glass 321 of the electronic device 101 .
  • the guide information may include a guide message for inducing additional pressure to be applied in relation to user input.
  • the sensor module 176 includes a fingerprint sensor 411 (eg, the fingerprint sensor 350 of FIG. 3 ) for checking fingerprint information according to user input, and checking whether the electronic device 101 is worn on the user's wrist.
  • Wear detection sensor 412 eg, wear detection sensor 312 of FIG. 3 for measuring a pressure value according to a user input, and/or a pressure sensor 413 (eg, pressure sensor 314 of FIG. 3) ) may be included.
  • the fingerprint sensor 411 may be disposed below the display module 160 and may check the user's fingerprint information based on light including the user's fingerprint information. For example, light including user's fingerprint information (eg, light reflected by the user's fingerprint) may pass through the display module 160 and be received by the fingerprint sensor 411 .
  • the processor 120 may check user fingerprint information (eg, a fingerprint image) using the fingerprint sensor 411 and perform a user authentication operation based on the identified user fingerprint information.
  • a fingerprint authentication method based on the fingerprint sensor 411 may include an optical method and/or an ultrasonic method.
  • the optical method may recognize a difference in the amount of light reflection on the surface of the ridge and valley included in the fingerprint image, and identify the user's fingerprint based on the difference.
  • the ultrasound method electronically recognizes the difference between the ultrasonic reflections on the ridge and bone surfaces included in the fingerprint image, and can identify the user's fingerprint based on the difference.
  • the type of fingerprint authentication method is not limited.
  • the wearing detection sensor 412 may include a sensor for determining whether the electronic device 101 is worn on the user's wrist.
  • the wearing detection sensor 412 is disposed under a printed circuit board (eg, the printed circuit board 330 of FIG. 3) disposed in the inner space of the housing 210 of the electronic device 101.
  • the printed circuit board 330 may be composed of a main board and a sub board disposed under the main board, and the wearing detection sensor 412 may be disposed in a form that is at least partially coupled to the sub board. there is.
  • the wearing detection sensor 412 may check whether the electronic device 101 is worn in a state of physical contact with the user's wrist.
  • the wearing detection sensor 412 may include a rear glass (eg, rear glass 322 of FIG. 3 ) at least partially coupled to a rear cover (eg, rear cover 312 of FIG.
  • the wearing detection sensor 412 can detect the reflected amount of the reflected light or the changed amount of the reflected light when the light is reflected by the user's wrist, and can determine whether the electronic device 101 is worn on the user's wrist.
  • the wearing detection sensor 412 may include a light emitting unit for generating light and a light receiving unit for obtaining light. For example, the wearing detection sensor 412 may generate light through a light emitting unit, and the generated light may be reflected to a human body (eg, a wrist).
  • the wearing detection sensor 412 may obtain light (eg, reflected light) reflected by the human body through a light receiving unit, and may measure a reflection amount and a variation amount of the reflected light.
  • the processor 120 may perform a photoplethysmogram (PPG) measuring function based on the amount of reflection and the amount of change of the measured reflected light.
  • PPG photoplethysmogram
  • the wearing detection sensor 412 includes two electrode sensors (eg, the electrode sensor 316 of FIG. 3) disposed to correspond to a partial area of the rear glass 322 of the electronic device 101 ( Example: + (positive), - (negative)).
  • the rear glass 322 eg, the electrode sensor 316 disposed on the rear glass 322 physically contacts the user's wrist.
  • the processor 120 may check electrical characteristics of the human body using two electrode sensors and determine whether the electronic device 101 is worn on the user's wrist.
  • the processor 120 may measure an electrocardiogram (ECG) by using two electrode sensors included in the wearing detection sensor 412 .
  • ECG electrocardiogram
  • the wearing detection sensor 412 is not limited to the first embodiment and the second embodiment, and may include various types of sensors for determining whether the electronic device 101 is worn. can According to various embodiments, the wearing detection sensor 412 may measure at least one data of electrocardiogram, oxygen saturation (Sp02), and/or heart rate, and based on the measured data, the electronic device ( 101) may be detected by the user.
  • the wearing detection sensor 412 may measure at least one data of electrocardiogram, oxygen saturation (Sp02), and/or heart rate, and based on the measured data, the electronic device ( 101) may be detected by the user.
  • the pressure sensor 413 may measure a pressure value according to a user input.
  • the pressure sensor 413 may be disposed under a charging coil (eg, the charging coil 313 of FIG. 3 ) disposed in the inner space of the housing 210 of the electronic device 101 .
  • the pressure sensor 413 may utilize the charging coil 313 as a support member and measure pressure generated between the rear glass 322 and the wrist.
  • the pressure sensor 413 may be designed to correspond to the shape of the charging coil 313 .
  • the charging coil 313 may be designed in a ring shape surrounding the wearing detection sensor 412, and the pressure sensor 413 may detect the wearing based on the size of the charging coil 313. It may be designed in the form of a ring surrounding the sensor 412 .
  • the pressure sensor 413 may measure an external force applied to the electronic device 101 as a pressure value. For example, when a user authentication operation is performed, an external force applied to the user's input may be generated between the user's wrist and the rear glass 322 . According to one embodiment, the pressure sensor 413 is disposed adjacent to the rear glass 322, so that a pressure value between the rear glass 322 and the wrist can be more accurately measured.
  • the pressure sensor 413 may be electrically connected to a printed circuit board (eg, the printed circuit board 330 of FIG. 3 ) of the electronic device 101, and the processor 120 uses the pressure sensor 413 to allow the user to The pressure value according to the input of can be measured.
  • the processor 120 may measure a pressure value (eg, a first pressure value) according to a user's input and determine whether the measured pressure value exceeds a set threshold value.
  • the threshold value is a preset value and may be stored in the memory 130 .
  • the processor 120 may display guide information requesting that pressure be added to the user input through the display module 160 .
  • the processor 120 may display guide information requesting a user input of a second pressure value exceeding a threshold value.
  • crests and valleys of the fingerprint included in the fingerprint image may be more clearly identified, and accuracy of the user authentication operation may be improved.
  • the processor 120 may acquire a fingerprint image in the form of clear ridges without breaking the ridges and valleys of the fingerprint. According to an embodiment, as the pressure applied to the user input increases, the area where the fingerprint contacts the front glass 321 may increase, and the area occupied by the ridges and valleys of the fingerprint included in the fingerprint image may expand. . Due to this, accuracy of user authentication operation may be improved.
  • a front glass 321 having a predetermined thickness (eg, 2-3 mm) or more is applied to the first surface (eg, the front surface, from above) of the electronic device 101.
  • a surface facing downward (eg, -z direction) may be disposed on the front side 210A of Fig. 2A
  • the electronic device 101 is a fingerprint sensor 411 below (eg, the back side) of the display module 160.
  • the electronic device 101 may acquire fingerprint information of the user in response to a user input through the front glass 321 when performing a user authentication operation.
  • the electronic device 101 uses the wearing detection sensor 412 to: It is possible to check whether the electronic device 101 is worn on the user's wrist, and if it is confirmed that the electronic device 101 is worn on the user's wrist, the pressure sensor 413 can be activated to measure a pressure value according to the user's input. When the measured pressure value does not exceed a set threshold value, the device 101 may display guide information so that the user applies a stronger pressure in response to the user input. Since strong pressure is applied, accuracy according to the user authentication operation may be improved.
  • a wearable electronic device (eg, the electronic device 101 of FIG. 1 or the electronic device 200 of FIG. 2A ) includes a display module (eg, the display module 160 of FIG. 1 ), the display module A fingerprint sensor (eg, fingerprint sensor 411 of FIG. 4 ), a wearing detection sensor (eg, wearing detection sensor 412 of FIG. 4 ), and a pressure sensor (eg, pressure sensor of FIG. 4 ) disposed on the back of 160 . 413), a memory (eg, the memory 130 of FIG. 1), and the display module 160, the fingerprint sensor 411, the wearing detection sensor 412, the pressure sensor 413, and the memory It may include a processor electrically connected to 130 (eg, processor 120 of FIG. 1 ).
  • a processor electrically connected to 130 (eg, processor 120 of FIG. 1 ).
  • the processor 120 determines whether the wearable electronic device 101 is worn through the wearing detection sensor 412 in response to the execution of the fingerprint sensing function for the fingerprint sensor 411, and determines whether the wearable electronic device 101 is worn.
  • the pressure sensor 413 is activated, and in response to a user input according to execution of the fingerprint sensing function, a first pressure value of the user input is measured through the pressure sensor 413, and the measurement It is checked whether the first pressure value obtained exceeds a set threshold value, and if it does not exceed the set threshold value, guide information requesting user input of a second input value exceeding the set threshold value may be displayed. .
  • the processor 120 may perform a user authentication operation according to the fingerprint sensing function when the set threshold value is exceeded.
  • the processor 120 emits light to the user's fingerprint according to the user input in response to the execution of the fingerprint sensing function, and the emitted light is reflected on the fingerprint to generate the reflected light.
  • a fingerprint image may be obtained based on the received light.
  • the processor 120 identifies crests and valleys of the user's fingerprint based on the acquired fingerprint image, and performs a user authentication operation based on the identified crests and valleys.
  • the processor 120 emits ultrasonic waves to the user's fingerprint according to the user input in response to the execution of the fingerprint sensing function, and the emitted ultrasonic waves are reflected on the ridges and valleys of the fingerprint.
  • a user authentication operation for the fingerprint may be performed based on the amount of the obtained ultrasound.
  • the processor 120 determines the contrast of the fingerprint image, continuity of fingerprint ridges included in the fingerprint image, and feature points of the fingerprint image, based on the acquired fingerprint image. (eg, dot line), it is possible to determine whether the fingerprint image is suitable for user authentication based on the checked data.
  • the processor 120 may update the set threshold value to a first threshold value to be relatively low, and store it in the memory 130 .
  • the processor 120 may update the set threshold value to a second threshold value to be relatively high, and store it in the memory 130 .
  • the wearing detection sensor 412 may include a light emitting unit and a light receiving unit, and the processor 120 generates light through the light emitting unit of the wearing detection sensor 412, and the generated light
  • the wearable electronic device 101 is reflected on the worn human body, the reflected light (eg, reflected light) is obtained through the light receiver, and the wearable electronic device based on the amount of reflection and change in the acquired light (101) can be determined whether or not to wear.
  • the wearing detection sensor 412 may include an electrode sensor composed of an anode (+) and a cathode (-), and the processor 120 uses the electrode sensor to detect the wearable electronic device. Electrical characteristics of the human body worn by 101 may be checked, and based on the identified electrical characteristics, whether to wear the wearable electronic device 101 may be determined.
  • the guide information may include at least one of text and image requesting a user input of the second pressure value greater than the first pressure value while exceeding the set threshold value.
  • the wearable electronic device 101 includes a front cover (eg, the front cover 311 of FIG. 3 ) facing a first direction (eg, a bottom-up direction (eg, a z-direction)), the first direction
  • the rear cover eg, the rear cover 312 of FIG. 3 facing the second direction opposite to (eg, the top-down direction (eg, -z direction)
  • the front cover 311 and the rear cover ( 312) may include a housing (eg, the housing 210 of FIG. 2A) including a side member (eg, the side member 206 of FIG. 2A) surrounding at least a portion of the space between the spaces.
  • the housing 210 is disposed at least partially coupled to the front cover 311, and the front glass (eg, the front glass 321 of FIG. 3 ) physically contacted with the user input, and the rear cover ( 312), and may include a rear glass (eg, the rear glass 322 of FIG. 3 ) physically contacting the human body when the wearable electronic device 101 is worn.
  • the front glass eg, the front glass 321 of FIG. 3
  • the rear cover ( 312) may include a rear glass (eg, the rear glass 322 of FIG. 3 ) physically contacting the human body when the wearable electronic device 101 is worn.
  • the housing 210 is disposed between the fingerprint sensor 411 and the wearing detection sensor 412 disposed on the rear surface of the display module 160, and the fingerprint sensor 411 and the A printed circuit board electrically connected to the wearing detection sensor 412 (eg, the printed circuit board 330 of FIG. 3) may be further included.
  • the processor 120 Based on the fingerprint sensor 411, the processor 120 obtains a fingerprint image according to the user input from light or ultrasonic waves obtained by passing through the display module 160, and detects the wearing sensor 412. Based on this, it is possible to check whether or not the wearer is worn from the light transmitted through the rear glass 322 and reflected on the human body.
  • the pressure sensor 413 has a shape that at least partially surrounds the wearing detection sensor 412 so that the light generated by the wearing detection sensor 412 is emitted through the rear glass 322. , and disposed on the rear glass 322, the processor 120, in response to the user input, through the pressure sensor 413, the rear glass 322 and the rear glass 322 Pressure values between human bodies in physical contact can be measured.
  • FIG. 5 is a flowchart illustrating a method of displaying guide information such that pressure of a certain level or higher is applied to a user input in performing a user authentication operation according to various embodiments of the present disclosure.
  • the electronic device 101 of FIG. 5 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • the electronic device 101 is a watch in which an annular member (annular member 202 in FIG. 2A ) is at least partially disposed in a housing including a circular opening (eg, housing 210 in FIG. 2A ). It may include a wearable electronic device in the form of a watch.
  • the electronic device 101 includes a fingerprint sensor (eg, the fingerprint sensor 411 of FIG. 4 ) and a wearing detection sensor (eg, the wearing detection sensor 412 of FIG. 4 ) for performing a user authentication operation in the inner space of the housing 210 . )) and a pressure sensor (eg, the pressure sensor 413 of FIG. 4 ) may be disposed.
  • the electronic device 101 may determine whether the electronic device 101 is worn on the user's wrist using the wearing detection sensor 412, and in response to being worn on the user's wrist, A fingerprint sensing function may be performed.
  • the display module eg, the display module 160 of FIG. 1 , the display 220 of FIG. 2A , the display module 220 of FIG. 3
  • guide information for inducing a user's touch input eg, a user's fingerprint input
  • user's fingerprint information may be obtained.
  • the electronic device 101 may measure a pressure value (eg, a first pressure value) applied to a user input using the pressure sensor 413, and when the measured pressure value exceeds a set threshold value, User authentication can be performed. According to an embodiment, the electronic device 101 transmits guide information requesting a second pressure value greater than the measured pressure value (eg, the first pressure value) while exceeding a set threshold value through the display module 160. through, can be displayed.
  • the second pressure value may be a pressure value exceeding a set threshold value.
  • the processor 120 (eg, the processor 120 of FIG. 1) of the electronic device 101 may perform a fingerprint sensing function. For example, when the electronic device 101 is in a locked mode, the processor 120 may perform a fingerprint sensing function to release the locked mode.
  • the fingerprint sensing function is one method of performing a user authentication operation, and may include an authentication procedure based on a user's fingerprint.
  • the processor 120 may switch the display module 160 from an inactive state (eg, a screen OFF state) to an active state (eg, a screen ON state) in response to performing the fingerprint sensing function.
  • the processor 120 may detect a user's finger input based on a touch screen panel (TSP) included in the display module 160. In response to the detection, it is possible to determine whether the electronic device 101 is worn on the user's wrist. According to another embodiment, when it is detected through the wearing detection sensor 412 that the electronic device 101 in which the display module 160 is in an inactive state is worn on the user's wrist, the processor 120 of the electronic device 101 ) may perform a fingerprint sensing function. According to one embodiment, operation 501 and operation 503 are sequential, and are not limited to a specific order.
  • the processor 120 may check whether the electronic device 101 is worn on the user's wrist through the wearing detection sensor 412.
  • the wearing detection sensor 412 may be disposed adjacent to the rear glass 322 of the electronic device 101, physically contacting the user's wrist, and generate light passing through the rear glass 322.
  • the generated light may be reflected on the human body and may be incident to the wearing detection sensor 412 as reflected light.
  • the processor 120 may determine whether the electronic device 101 is worn on the user's wrist based on the received light.
  • the processor 120 may activate the pressure sensor 413 .
  • the pressure sensor 413 may be disposed in a form that is at least partially coupled to the rear glass 322 and may measure pressure generated between the rear glass 322 and the user's wrist. If it is confirmed in operation 503 that the electronic device 101 is not worn on the user's wrist, in operation 513 the processor 120 may deactivate the pressure sensor 413 . For example, if the pressure sensor 413 is in an inactive state before operation 503, the processor 120 may maintain the inactive state of the pressure sensor 413 as it is. After the pressure sensor 413 is deactivated in operation 513, the processor 120 may perform a user authentication operation according to the fingerprint sensing function in operation 511.
  • the processor 120 may display guide information requesting user input according to the execution of the fingerprint sensing function through the display module 160.
  • the guide information may include at least one of a virtual fingerprint image and a guide message such as “Please input your fingerprint.”
  • the processor 120 may perform operation 507 .
  • the processor 120 may measure a pressure value (eg, a first pressure value) for the user input using the activated pressure sensor 413.
  • a pressure value eg, a first pressure value
  • the user input may be generated by at least partially pressing the front glass 321 of the electronic device 101, and pressure may occur between the rear glass 322 of the electronic device 101 and the user's wrist.
  • the processor 120 may measure a pressure value (eg, a first pressure value) between the rear glass 322 and the wrist using the pressure sensor 413 .
  • the processor 120 may check whether the measured pressure value exceeds a set threshold. For example, when pressure of a certain level or more is applied to the user input, a usage condition for a user authentication operation based on the fingerprint sensor 411 (eg, a condition in which the accuracy of the user authentication operation is at least a certain level) may be satisfied, and a certain level of pressure may be satisfied. A pressure value above the level may be set as a threshold value.
  • the electronic device 101 may set a threshold value and store the set threshold value in the memory 130 .
  • the processor 120 may display guide information requesting user input again.
  • the guide information may include text and image requesting a user input of a second pressure value greater than the first measured pressure value (eg, the first pressure value) while exceeding the set threshold value.
  • the guide information may include a guide message such as "Please input your fingerprint with a stronger force.”
  • the processor 120 may perform a user authentication operation for the fingerprint sensing function.
  • that the measured pressure value exceeds a set threshold value may mean that it is easy to distinguish ridges and valleys of a fingerprint included in an acquired fingerprint image through the fingerprint sensor 411 .
  • the fact that the crests and valleys of the fingerprint can be easily distinguished may mean that the accuracy of the user authentication operation is improved.
  • the processor 120 may obtain more accurate fingerprint information, and based on the acquired fingerprint information, the accuracy of the user authentication operation is improved. It can be.
  • the electronic device 101 when a user authentication operation is performed while the electronic device 101 (eg, a wearable electronic device) is worn on a user's wrist, the electronic device 101 generates a pressure value (eg, a pressure value according to a user input).
  • the first pressure value may be measured, and guide information may be provided to the user so that the pressure applied to the user input is pressurized to a predetermined level or higher.
  • the user performs a user input (eg, a user input of a second pressure value) in which stronger pressure is applied to the front glass 321 of the electronic device 101, and the electronic device 101 stably applies the fingerprint sensor 411 to the fingerprint sensor 411. Based user authentication operation can be performed.
  • the electronic device 101 may guarantee a certain level of accuracy or higher when performing a user authentication operation.
  • the electronic device 101 may provide guide information to the user so that pressure of a certain level or higher (eg, a threshold or higher value) is generated even in the process of registering the user's fingerprint information.
  • the electronic device 101 may perform a process of receiving the user's fingerprint information and storing it in the memory 130 for user authentication, and in the process of receiving the user's fingerprint information, a more accurate fingerprint To obtain information, it may require pressed user input.
  • the electronic device 101 may display guide information through the display module 180 so that the user registers fingerprint information by applying pressure to a user input.
  • the electronic device 101 may acquire more accurate fingerprint information in the process of registering a fingerprint, and the accuracy of user authentication operation may be improved.
  • 6A is a first flowchart illustrating a method of updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure.
  • 6B is a second flowchart illustrating a method of updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure.
  • the first flow chart of FIG. 6A and the second flow chart of FIG. 6B may be substantially interpreted as a single flow chart, and may be a flow chart described by embodying the flow chart of FIG. 5 .
  • the electronic device 101 of FIGS. 6A and 6B may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device. .
  • the electronic device 101 is a watch in which an annular member (annular member 202 in FIG. 2A ) is at least partially disposed in a housing including a circular opening (eg, housing 210 in FIG. 2A ). It may include a wearable electronic device in the form of a watch.
  • the electronic device 101 includes a fingerprint sensor (eg, the fingerprint sensor 411 of FIG. 4 ) and a wearing detection sensor (eg, the wearing detection sensor 412 of FIG. 4 ) for performing a user authentication operation in the inner space of the housing 210 . )) and a pressure sensor (eg, the pressure sensor 413 of FIG. 4 ) may be disposed.
  • the electronic device 101 may determine whether the electronic device 101 is worn on the user's wrist using the wearing detection sensor 412, and in response to being worn on the user's wrist, A fingerprint sensing function may be performed.
  • the display module eg, the display module 160 of FIG. 1 , the display 220 of FIG. 2A , the display module 220 of FIG. 3
  • guide information for inducing a user's touch input eg, a user's fingerprint input
  • user's fingerprint information may be acquired.
  • the electronic device 101 may measure a pressure value applied to a user input using the pressure sensor 413, and perform a user authentication operation when the measured pressure value exceeds a set threshold value. .
  • the electronic device 101 may display guide information through the display module 160 so that a user input is input by applying a pressure value of a certain level or higher.
  • the electronic device 101 may acquire an image (eg, a fingerprint image) according to a fingerprint sensing function, and determine whether the acquired image is suitable for user authentication (eg, whether it is a dry fingerprint). and update the set threshold.
  • the electronic device 101 may update the set threshold based on whether the user authentication operation is successful.
  • operations 601 to 611 are substantially the same as operations 501 to 511 of FIG. 5 , corresponding descriptions are replaced with those of FIG. 5 .
  • Operations 621 and 623 of FIG. 6A may be substantially the same as operations 513 and 515 of FIG. 5 .
  • the processor 120 may obtain an image (eg, a fingerprint image) according to the user input using the fingerprint sensor 411 in response to performing the user authentication operation.
  • the processor 120 may emit light (eg, light) in some areas based on the display module 160 during a user authentication operation, and the light may be emitted by a user input (eg, a touch input, a finger) The light may be reflected on the fingerprint according to the touch input of ) and received by the fingerprint sensor 411 .
  • Light (light) emitted through the display module 160 may be at least partially reflected on the ridges and valleys of the fingerprint, and the reflected light may pass through the display module 160 and be below the display module 160.
  • Light may be received by the disposed fingerprint sensor 411 .
  • the processor 120 may obtain a fingerprint image (eg, fingerprint information) according to a user input based on the received light.
  • the processor 120 may determine whether the obtained image (eg, a fingerprint image) is suitable for user authentication. For example, the processor 120 may check the contrast of the acquired fingerprint image, the continuity of fingerprint ridges included in the fingerprint image, and/or a feature point (eg, dot line) of the fingerprint image, Based on the data on the fingerprint image, it may be determined whether the fingerprint image is suitable for user authentication. For example, it is possible to check whether the user's fingerprint is dry. For another example, when the fingerprint is dry, it may be difficult for the processor 120 to extract feature points (eg, feature points) based on the fingerprint image.
  • feature points eg, feature points
  • the fingerprint recognition performance of the fingerprint sensor 411 may be affected according to a contact level of a fingerprint ridge based on a fingerprint sensing area.
  • the contact level of the fingerprint ridge may include a level of whether the fingerprint ridge is properly brought into close contact with the fingerprint sensing area.
  • the level of contact of the fingerprint ridges may be determined based on at least one of the contact location of the finger, the pressure exerted on the finger, and/or the dryness of the skin on the finger.
  • the processor 120 may check whether the user's fingerprint included in the fingerprint image is in a dry state, and if it is in a dry state, the processor 120 may determine that the fingerprint image is not suitable for user authentication. Conversely, the processor 120 may determine that the fingerprint image is suitable for user authentication when it is not dry.
  • the processor 120 may update the set threshold value in a direction of increasing. If the user's fingerprint is not dry, even if a weaker pressure than before is applied, the user authentication operation may be performed, and thus the processor 120 may update the set threshold value in a direction of decreasing.
  • the processor 120 may update the set threshold value to a first threshold value.
  • the first threshold may include a threshold relatively lower than the set threshold.
  • the electronic device 101 may perform the user authentication operation even if the pressure applied to the user input is relatively lower than before.
  • the electronic device 101 may update the set threshold value to a relatively low first threshold value, and the user input The pressure applied to it can be reduced.
  • the processor 120 may perform a user authentication operation based on the obtained image.
  • the processor 120 may update the set threshold value to a second threshold value.
  • the second threshold may include a threshold relatively higher than the set threshold.
  • the electronic device 101 may perform the user authentication operation only when the pressure applied to the user input is relatively higher than before.
  • the electronic device 101 may update the set threshold to a relatively high second threshold, and the user input The pressure applied to it can be increased.
  • the processor 120 may display guide information requesting user input again.
  • the guide information may include text and an image requesting a user input having a stronger pressure value (eg, a second pressure value) than the pressure value (eg, the first pressure value) measured in operation 607. there is.
  • the second pressure value may be a pressure value greater than the updated second threshold value.
  • the guide information may include a guide message such as "Please input your fingerprint with a stronger force.”
  • the electronic device 101 may determine whether the user's fingerprint is dry or not, based on the obtained fingerprint image, and set a set threshold value as a first threshold value according to the determination result. It may be updated to one of a value (eg, a threshold relatively lower than the set threshold) or a second threshold (eg, a threshold relatively higher than the set threshold).
  • a value eg, a threshold relatively lower than the set threshold
  • a second threshold eg, a threshold relatively higher than the set threshold
  • FIG. 7A is a first flowchart illustrating a method of determining whether an acquired fingerprint image is suitable for a user authentication operation and updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure
  • . 7B is a second flowchart illustrating a method of determining whether an acquired fingerprint image is suitable for a user authentication operation and updating a set threshold value in performing a user authentication operation according to various embodiments of the present disclosure
  • the first flow chart of FIG. 7A and the second flow chart of FIG. 7B may be substantially interpreted as one flow chart, and may be a flow chart specifically described as a flow chart of FIG. 5 .
  • the electronic device 101 of FIGS. 7A and 7B may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device. .
  • the electronic device 101 is a watch in which an annular member (annular member 202 in FIG. 2A ) is at least partially disposed in a housing including a circular opening (eg, housing 210 in FIG. 2A ). It may include a wearable electronic device in the form of a watch.
  • the electronic device 101 includes a fingerprint sensor (eg, the fingerprint sensor 411 of FIG. 4 ) and a wearing detection sensor (eg, the wearing detection sensor 412 of FIG. 4 ) for performing a user authentication operation in the inner space of the housing 210 . )) and a pressure sensor (eg, the pressure sensor 413 of FIG. 4 ) may be disposed.
  • the electronic device 101 may determine whether the electronic device 101 is worn on the user's wrist using the wearing detection sensor 412, and in response to being worn on the user's wrist, A fingerprint sensing function may be performed.
  • the display module eg, the display module 160 of FIG. 1 , the display 220 of FIG. 2A , the display module 220 of FIG. 3
  • guide information for inducing a user's touch input eg, a user's fingerprint input
  • user's fingerprint information may be acquired.
  • the electronic device 101 may acquire an image (eg, a fingerprint image) according to a fingerprint sensing function, and determine whether the acquired image is suitable for user authentication (eg, whether it is a dry fingerprint). and update the set threshold.
  • the electronic device 101 may update the set threshold based on whether the user authentication operation is successful.
  • the electronic device 101 may measure a pressure value applied to a user input using the pressure sensor 413, and perform a user authentication operation when the measured pressure value exceeds an updated threshold value. there is.
  • the electronic device 101 may display guide information through the display module 160 when a pressure value less than a certain level is applied as a user input.
  • operations 701 to 706 are substantially the same as operations 501 to 506 of FIG. 5 , corresponding descriptions are replaced with those of FIG. 5 .
  • Operations 719 and 725 of FIG. 7A may be substantially the same as operations 513 and 515 of FIG. 5 .
  • the processor 120 may acquire an image (eg, a fingerprint image) according to a user input using the fingerprint sensor 411 in response to performing the fingerprint sensing function.
  • the processor 120 may emit light (eg, light) in a partial area based on the display module 160 during the fingerprint sensing function, and the light may emit light from a user input (eg, a touch input, a finger)
  • the light may be reflected on the fingerprint according to the touch input of ) and received by the fingerprint sensor 411 .
  • Light (light) emitted through the display module 160 may be at least partially reflected on the ridges and valleys of the fingerprint, and the reflected light may pass through the display module 160 and be below the display module 160.
  • Light may be received by the disposed fingerprint sensor 411 .
  • the processor 120 may obtain a fingerprint image (eg, fingerprint information) according to a user input based on the received light.
  • the processor 120 may determine whether the obtained image (eg, a fingerprint image) is suitable for user authentication. For example, the processor 120 may check the contrast of the acquired fingerprint image, the continuity of fingerprint ridges included in the fingerprint image, and/or a feature point (eg, dot line) of the fingerprint image, Based on the data on the fingerprint image, it may be determined whether the fingerprint image is suitable for user authentication. For example, it is possible to check whether the user's fingerprint is dry. For another example, when the fingerprint is dry, it may be difficult for the processor 120 to extract feature points (eg, feature points) based on the fingerprint image.
  • feature points eg, feature points
  • the fingerprint recognition performance of the fingerprint sensor 411 may be affected according to a contact level of a fingerprint ridge based on a fingerprint sensing area.
  • the contact level of the fingerprint ridge may include a level of whether the fingerprint ridge is properly brought into close contact with the fingerprint sensing area.
  • the level of contact of the fingerprint ridges may be determined based on at least one of the contact location of the finger, the pressure exerted on the finger, and/or the dryness of the skin on the finger.
  • the processor 120 may check whether the user's fingerprint included in the fingerprint image is in a dry state, and if it is in a dry state, the processor 120 may determine that the fingerprint image is not suitable for user authentication. Conversely, the processor 120 may determine that the fingerprint image is suitable for user authentication when it is not dry.
  • the processor 120 may measure a pressure value corresponding to a user input using the activated pressure sensor 413.
  • the user input may be generated by at least partially pressing the front glass 321 of the electronic device 101, and pressure may occur between the rear glass 322 of the electronic device 101 and the user's wrist.
  • the processor 120 may measure a pressure value between the rear glass 322 and the wrist using the pressure sensor 413 .
  • the processor 120 may check whether the measured pressure value exceeds a set threshold. For example, when pressure of a certain level or more is applied to the user input, a usage condition for a user authentication operation based on the fingerprint sensor 411 (eg, a condition in which the accuracy of the user authentication operation is at least a certain level) may be satisfied, and a certain level of pressure may be satisfied. A pressure value above the level may be set as a threshold value.
  • the electronic device 101 may set a threshold value and store the set threshold value in the memory 130 .
  • the processor 120 may display guide information requesting user input again.
  • the guide information may include text and image requesting user input having a stronger pressure value (eg, second pressure value) than the pressure value (eg, first pressure value) measured in operation 711. there is.
  • the second pressure value may be a pressure value greater than the set threshold value.
  • the guide information may include a guide message such as "Please input your fingerprint with a stronger force.”
  • the processor 120 may update the set threshold value to a first threshold value.
  • the first threshold may include a threshold relatively lower than the set threshold.
  • the electronic device 101 determines that the fingerprint image is suitable for user authentication, and in operation 713, as the pressure value according to the user input exceeds the set threshold value, the electronic device 101 removes the set threshold value in operation 715. It can be updated with a threshold of 1.
  • the processor 120 may perform a user authentication operation based on the obtained image.
  • the processor 120 may update the set threshold value (eg, the first threshold value) to a second threshold value.
  • the second threshold may include a threshold relatively higher than the set threshold.
  • the pressure value eg, the second pressure value
  • the user authentication operation may be performed only when the input pressure is higher than the first pressure value (eg, the first pressure value).
  • the electronic device 101 may update the set threshold to a relatively high second threshold, and the user input pressure can be increased.
  • the processor 120 may display guide information requesting user input (eg, user input of the second pressure value) again.
  • the guide information may include text and images requesting a user input having a stronger pressure than the second threshold.
  • the guide information may include a guide message such as "Please input your fingerprint with a stronger force.”
  • the electronic device 101 determines whether a pressure value according to a user input exceeds a set threshold value, and then determines whether the fingerprint image is suitable for user authentication. can judge According to another embodiment, as shown in the flowcharts of FIGS. 7A and 7B , after determining whether the fingerprint image is suitable for user authentication, the electronic device 101 determines whether the pressure value according to the user input exceeds a set threshold value. can also judge. According to an embodiment, an operation of determining whether a pressure value satisfies a condition and/or an operation of determining whether a fingerprint image is an appropriate image are not limited in sequential operations.
  • FIG. 8 is a cross-sectional view of an electronic device taken along line A-A′ of FIG. 2A according to various embodiments of the present disclosure.
  • the electronic device 101 of FIG. 8 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • FIG. 8 illustrates an arrangement structure of components included in the housing of the electronic device 101 (eg, the housing 210 of FIG. 2A ).
  • a front glass 321 may be disposed corresponding to a first surface (or a front surface, a surface viewed from top to bottom (eg, -z direction)) 210A
  • the rear glass 322 may be disposed corresponding to the second surface (or the rear surface, the surface viewed from the bottom to the top (eg, z direction)) 210B.
  • the electronic device 101 includes a display module (eg, the display module 220 of FIG. 2A ), a fingerprint sensor (eg, the FIG. 3 fingerprint sensor 350), battery (eg, battery 340 of FIG. 3), printed circuit board (eg, printed circuit board 330 of FIG.
  • main board main board
  • printed circuit board ( 330) included in the sub board 330-1 a wearing detection sensor (eg, the wearing detection sensor 312 of FIG. 3), a charging coil (eg, the charging coil 313 of FIG. 3), and /or, a pressure sensor (eg, pressure sensor 314 of FIG. 3 ) may be included.
  • a wearing detection sensor eg, the wearing detection sensor 312 of FIG. 3
  • a charging coil eg, the charging coil 313 of FIG. 3
  • a pressure sensor eg, pressure sensor 314 of FIG. 3
  • the fingerprint sensor 350 may correspond to the second surface of the display module 220 and may be disposed in a form that is attached at least partially.
  • the fingerprint sensor 350 may include an optical fingerprint sensor or an ultrasonic fingerprint sensor.
  • the fingerprint sensor 350 may obtain reflected light (eg, light reflected by a user's fingerprint) passing through the display module 220, Based on the acquired reflected light, fingerprint information (eg, fingerprint information on a user's fingerprint or a fingerprint image) may be identified.
  • the fingerprint sensor 350 may acquire ultrasonic light passing through the display module 220, and based on the ultrasonic amount of the obtained ultrasonic light Fingerprint information (eg, fingerprint information on ridges and valleys included in the fingerprint) can be checked.
  • Fingerprint information eg, fingerprint information on ridges and valleys included in the fingerprint
  • the printed circuit board 330 is divided into a main board and a sub board 330-1, but is not limited thereto.
  • a wearing detection sensor 312 may be disposed corresponding to the second surface of the sub board 330-1, and the wearing detection sensor 312 may detect whether the electronic device 101 is worn on the user's wrist. there is.
  • the charging coil 313 and the pressure sensor 314 may be disposed in a form surrounding the sub board 330-1 and the wearing detection sensor 312.
  • the charging coil 313 and the pressure sensor 314 may be disposed in a stacked manner.
  • the pressure sensor 314 may be disposed in a form that is at least partially attached to the rear glass 322 and may measure a pressure value between the rear glass 322 and the user's wrist.
  • the pressure sensor 314 may be placed adjacent to the point where the pressure is generated in order to accurately measure the pressure value.
  • the electrode sensor 316 may be disposed in correspondence to a partial region of the back glass 322 .
  • the electrode sensor 316 may be composed of positive (+) and negative (-) polarities, and may be in physical contact with a user's wrist (eg, a human body).
  • the processor 120 may use the electrode sensor 316 to determine electrical characteristics of the human body, and based on the identified electrical characteristics, whether or not the electronic device 101 is worn on the user's wrist. can judge
  • FIG. 9 is an exemplary view illustrating an operation of measuring a pressure value according to a user input using a pressure sensor according to various embodiments of the present disclosure.
  • the electronic device 101 of FIG. 9 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • the electronic device 101 may acquire fingerprint information of a user in response to performing a fingerprint sensing function. For example, the electronic device 101 may obtain fingerprint information of the user and perform a fingerprint sensing function based on a user input physically contacting the front glass 321 .
  • a first pressure 901 is generated, and the pressure 901 is applied to the back surface of the electronic device 101. It may be implemented as a second pressure 902 and/or a third pressure 903 between the glass 322 and the user's wrist.
  • the electronic device 101 may measure a pressure value according to a user input using the pressure sensor 314 disposed adjacent to the rear glass 322 . For example, the electronic device 101 may measure the user's first pressure 901 based on the second pressure 902 and/or the third pressure 903 .
  • the electronic device 101 may obtain a fingerprint image in the form of clear ridges without breaking the ridges and valleys of the fingerprint. According to an embodiment, as the pressure applied to the user input increases, the area where the fingerprint contacts the front glass 321 may increase, and the area occupied by the ridges and valleys of the fingerprint included in the fingerprint image may expand. . Due to this, accuracy of user authentication operation may be improved. According to an embodiment, the electronic device 101 may measure a pressure value according to a user input and update a set threshold value in response to the pressure value.
  • FIG. 10 is an exemplary diagram illustrating an electrical connection structure between a main board and a sub board on which a wear detection sensor is disposed, according to various embodiments of the present disclosure.
  • the electronic device 101 of FIG. 10 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • an electrical connection structure between a main board 330 and a sub board 330 - 1 corresponding to a printed circuit board (eg, the printed circuit board 330 of FIG. 3 ) is shown.
  • the main board 330 and the sub board 330-1 may be electrically connected based on the first connection path 1001, and the main board 330 and the pressure sensor 314 may be connected via the second connection path 1002. It can be electrically connected to the base.
  • the sub board 330-1 may be electrically connected to the charging coil 313 and the wearing detection sensor 312.
  • the pressure sensor 314 is shown as electrically connected to the main board 330, but is not limited thereto.
  • the pressure sensor 314 may be disposed in a form electrically connected to the sub board 330-1.
  • the electronic device 101 may detect whether or not the electronic device 101 is worn on the user's wrist using the wearing detection sensor 312, and the electronic device 101 is worn on the wrist.
  • the pressure value according to the user input may be measured using the pressure sensor 314 .
  • the wearing detection sensor 312 may include a light emitting unit and generate light to transmit through one region 1010 of the rear glass 322 .
  • the wearing detection sensor 412 can detect the reflected amount of the reflected light or the changed amount of the reflected light when the light is reflected by the user's wrist, and can determine whether the electronic device 101 is worn on the user's wrist.
  • FIG. 11 is an exemplary view illustrating an arrangement structure in which a sub-board, a charging coil, a pressure sensor, and/or a rear glass are at least partially laminated, on which a wearing detection sensor is disposed, according to various embodiments of the present disclosure.
  • a wearing detection sensor (eg, the wearing detection sensor 312 of FIG. 3) may be disposed on a sub board (eg, the sub board 330-1 of FIG. 8), and the wearing detection sensor 312 )
  • the charging coil 313 and the pressure sensor 314 may be disposed in a form surrounding.
  • the wearing detection sensor 312 includes a light emitting unit, and the charging coil 313 and the pressure sensor 314 allow light (light) generated through the light emitting unit to pass through the rear glass 322 and be emitted. An opening may be formed in.
  • the charging coil 313 may be electrically connected to the sub board 330 - 1 and may perform a wireless charging function for the electronic device 101 .
  • the pressure sensor 314 may be disposed between the rear glass 322 and the charging coil 313, and a pressure value generated between the rear glass 322 and the user's wrist in physical contact with the rear glass 322. can measure
  • charging coil 313 may function as a support member for pressure sensor 314 .
  • FIG. 12 is an exemplary diagram illustrating a laminated structure for a pressure sensor according to various embodiments of the present disclosure.
  • the electronic device 101 of FIG. 12 (eg, the electronic device 101 of FIG. 1 ) may be at least partially similar to the electronic device 200 of FIG. 2A or may further include other embodiments of the electronic device.
  • the pressure sensor 314 (eg, the pressure sensor 314 of FIG. 3) includes a sensing layer 1201, a GND (ground) layer 1203, and a PET film ( 1204) may be implemented in a stacked form.
  • the sensing layer 1201 and the GND layer 1203 may be physically separated by the insulating layer 1202 .
  • Pressure sensor 314 may be electrically connected to a printed circuit board (eg, printed circuit board 330 of FIG. 3 ).
  • the sensing layer 1201 may be connected to a positive (+) terminal
  • the GND layer 1203 may be connected to a negative (-) terminal.
  • the pressure sensor 314 may generate a voltage difference based on a geometric change between the sensing layer 1201 and the GND layer 1203. there is.
  • a processor of the electronic device 101 eg, the processor 120 of FIG. 1
  • the display module (eg, the electronic device 200 of FIG. 2A) of the wearable electronic device 101 In response to the execution of the fingerprint sensing function for the fingerprint sensor (eg, the fingerprint sensor 411 of FIG. 4) disposed on the rear surface of the display module 160 of FIG. 1, the wearing detection sensor (eg, the wearing detection of FIG. 4) An operation of checking whether the wearable electronic device 101 is worn through the sensor 412), a pressure sensor (eg, the pressure sensor 413 of FIG.
  • an operation of measuring a first pressure value of the user input through the pressure sensor 413, the measured first pressure value is set It may include an operation of checking whether or not a threshold value is exceeded, and an operation of displaying guide information requesting a user input of a second input value exceeding the set threshold value if it does not exceed the set threshold value.
  • the operation of emitting light to the user's fingerprint according to the user input the emitted light is reflected on the fingerprint, and the reflected light is received through the fingerprint sensor 411.
  • an operation of acquiring an image based on the received light an operation of confirming ridges and valleys of the user's fingerprint based on the obtained fingerprint image, and based on the identified ridges and valleys.
  • An operation of performing a user authentication operation may be further included.
  • a fingerprint sensing method may include, based on the obtained fingerprint image, contrast of the fingerprint image, continuity of fingerprint ridges included in the fingerprint image, and feature points of the fingerprint image (e.g. : dot line), and determining whether the fingerprint image is suitable for user authentication based on the checked data.
  • a fingerprint sensing method includes an operation of updating the set threshold value to a first threshold value so that the set threshold value is relatively low when the fingerprint image is suitable for user authentication, and storing the updated first threshold value in a memory (eg, FIG. 1 in the memory 130), updating the set threshold to a second threshold so that the set threshold becomes relatively high when the fingerprint image is not suitable for user authentication, and the updated second threshold An operation of storing in the memory 130 may be further included.
  • An operation of checking whether the wearable electronic device 101 is worn includes an operation of generating light through a light emitting unit of the wearing detection sensor 412 , and the generated light transmits light to the wearable electronic device 101 ) is reflected on the worn human body, an operation of obtaining the reflected light through the light receiving unit of the wearing detection sensor, and wearing of the wearable electronic device 101 based on the amount of reflection and change in the acquired light It may include an operation to determine whether or not.
  • the operation of checking whether the wearable electronic device 101 is worn according to an embodiment is performed by using an electrode sensor (e.g., FIG. Operation of checking the electrical characteristics of the human body worn by the wearable electronic device 101 using the electrode sensor 316 of 3), and the wearable electronic device 101 based on the checked electrical characteristics It may include an operation of determining whether or not to wear.
  • an electrode sensor e.g., FIG. Operation of checking the electrical characteristics of the human body worn by the wearable electronic device 101 using the electrode sensor 316 of 3
  • It may include an operation of determining whether or not to wear.
  • Electronic devices may be devices of various types.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a camera
  • a wearable device e.g., a smart bracelet
  • first, second, or first or secondary may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited.
  • a (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.”
  • the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.
  • module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits.
  • a module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • a storage medium eg, internal memory 136 or external memory 138
  • a machine eg, electronic device 101
  • a processor eg, the processor 120
  • a device eg, the electronic device 101
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.
  • a signal e.g. electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided by being included in a computer program product.
  • Computer program products may be traded between sellers and buyers as commodities.
  • a computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play StoreTM) or on two user devices (e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones.
  • a device-readable storage medium e.g. compact disc read only memory (CD-ROM)
  • an application store e.g. Play StoreTM
  • two user devices e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones.
  • at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.
  • each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is.
  • one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg modules or programs
  • the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. .
  • the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

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Abstract

Selon divers modes de réalisation, l'invention concerne un dispositif électronique portable qui comprend : un module d'affichage ; un capteur d'empreinte digitale, un capteur de détection de port, un capteur de pression et une mémoire qui sont disposés sur la surface arrière du module d'affichage ; et un processeur électriquement connecté au module d'affichage, au capteur d'empreinte digitale, au capteur de détection de port, au capteur de pression et à la mémoire. Le processeur peut : identifier, par l'intermédiaire du capteur de détection de port, en réponse à l'exécution d'une fonction de détection d'empreinte digitale pour le capteur d'empreinte digitale, si le dispositif électronique portable est porté ; activer le capteur de pression en réponse au port ; mesurer, par l'intermédiaire du capteur de pression, en réponse à une entrée d'utilisateur selon l'exécution de la fonction de détection d'empreinte digitale, une première valeur de pression de l'entrée d'utilisateur ; identifier si la première valeur de pression mesurée dépasse un seuil défini ; et afficher des informations de guidage demandant une entrée d'utilisateur d'une seconde valeur de pression, qui dépasse le seuil défini, si la première valeur de pression mesurée ne dépasse pas le seuil défini. Divers autres modes de réalisation sont possibles.
PCT/KR2022/018617 2021-12-06 2022-11-23 Procédé de détection d'empreinte digitale et dispositif électronique WO2023106698A1 (fr)

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Citations (5)

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