WO2018081932A1 - Dispositif électronique - Google Patents

Dispositif électronique Download PDF

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Publication number
WO2018081932A1
WO2018081932A1 PCT/CN2016/104273 CN2016104273W WO2018081932A1 WO 2018081932 A1 WO2018081932 A1 WO 2018081932A1 CN 2016104273 W CN2016104273 W CN 2016104273W WO 2018081932 A1 WO2018081932 A1 WO 2018081932A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive member
electronic device
signal
detecting circuit
sensor
Prior art date
Application number
PCT/CN2016/104273
Other languages
English (en)
Chinese (zh)
Inventor
林峰
Original Assignee
深圳信炜科技有限公司
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.)
Filing date
Publication date
Application filed by 深圳信炜科技有限公司 filed Critical 深圳信炜科技有限公司
Priority to CN201690000146.9U priority Critical patent/CN207817731U/zh
Priority to PCT/CN2016/104273 priority patent/WO2018081932A1/fr
Publication of WO2018081932A1 publication Critical patent/WO2018081932A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition

Definitions

  • the utility model relates to the field of sensor recognition technology, in particular to an electronic device having the function of identifying true and false organisms.
  • biometric modules eg, fingerprint recognition modules
  • biometric modules eg, fingerprint recognition modules
  • the use of biometric modules has become more widespread.
  • the security of biometric modules has received increasing attention. For example, if the ability of the fingerprint recognition module to recognize a fake finger is very good, others can easily fool the fingerprint recognition module by using a fake finger, and realize functions such as fingerprint unlocking and payment, which is a big problem for the user. Security risks. Therefore, it is necessary to provide an electronic device having the function of identifying true and false organisms.
  • the living body is, for example, a finger of a human body.
  • the present invention provides an electronic device having the function of recognizing true and false real objects.
  • An electronic device includes:
  • a biometric module comprising:
  • a sensor configured to perform biometric information sensing
  • a first detecting circuit is connected to the first conductive member, and is connected to the second conductive member through the intermediate element, wherein the first detecting circuit is configured to provide a first signal to the first conductive member Providing a second signal to the second conductive member through the intermediate component, and receiving a third signal from the output of the second conductive member And determining, according to the third signal, whether the target object contacting the first conductive member and the second conductive member is a human body.
  • the first signal is a constant voltage signal
  • the second signal is a first driving signal
  • the third signal is a first sensing signal
  • the first signal is a ground signal
  • the second signal is a first driving signal
  • the third signal is a first sensing signal
  • the intermediate element comprises any one of a voltage dividing element, a switching element or a combination of the two.
  • the intermediate component comprises a voltage dividing component
  • the voltage dividing component comprises a resistor
  • the resistor is connected in series between the second conductive component and the first detecting circuit.
  • the third signal is a signal of a side of the resistor connected to the second conductive member.
  • the target object contacts the first conductive member and the second conductive member, the target object and the resistor are connected in series.
  • the senor when the first detecting circuit determines that the target object contacting the first conductive member and the second conductive member is a human body, the sensor starts performing biometric information on the target object Sensing.
  • the first detecting circuit is configured to provide a grounding signal to the first conductive member and the second conductive member.
  • the senor includes a plurality of sensing electrodes and a second detecting circuit, and the second detecting circuit is configured to provide a second driving signal to the plurality of sensing electrodes, driving the plurality of senses
  • the measuring electrode performs biometric information sensing and receives a second sensing signal from the plurality of sensing electrode outputs to determine biometric information input by the target object based on the second sensing signal.
  • the biometric module further includes a control circuit, wherein the control circuit is respectively connected to the first detecting circuit and the second detecting circuit, and when the first detecting circuit determines to contact the first The target object of a conductive member and the second conductive member is a true human body, and correspondingly outputs a corresponding command signal to the control circuit, and the control circuit triggers the second detecting circuit to start driving the plurality of senses The electrodes perform biometric information sensing.
  • the control circuit and/or the first detection circuit are both integrated in the sensor.
  • the first detecting circuit acquires an electrical characteristic according to the second signal and the third signal, and determines, according to the electrical characteristic, whether the target object is a human body.
  • the first detecting circuit acquires a complex impedance characteristic according to the first sensing signal and the first driving signal, and determines the impedance according to an impedance or/and an impedance angle in the complex impedance characteristic. Whether the target object is a real human body.
  • the first conductive member and the second conductive member are disposed around the sensor.
  • the biometric module further includes an insulating member disposed between the first conductive member and the second conductive member for being used with the first conductive member and the second conductive member
  • the conductive members cooperate to form a hollow annular structure that surrounds the sensor.
  • the insulating member is respectively connected to the first conductive member and the second conductive member.
  • the first conductive member and the second conductive member are closer to an outer surface of the electronic device than the sensor.
  • the outer casing includes a protective cover, the through hole is disposed on the protective cover, the sensor is disposed corresponding to the through hole region, or the sensor is disposed under the protective cover , covered by the protective cover.
  • the electronic device further includes a display device disposed under the protective cover and disposed opposite to the sensor, wherein the display device is configured to display a picture.
  • the outer casing includes a rear casing, the through hole is disposed on the rear casing, and the sensor is disposed corresponding to the through hole region.
  • the through hole is disposed on a sidewall of the corresponding electronic device, and the sensor is disposed corresponding to the through hole region.
  • the biometric module is a fingerprint identification module.
  • the electronic device is a tablet computer or a mobile phone.
  • the first detecting circuit controls the switching element to be turned on and off intermittently.
  • the mobile terminal when the switching element is turned on, the first detecting circuit provides a second signal to the second conductive member through the conductive switching element.
  • the mobile terminal further includes display means for performing image display, the outer casing has a receiving space, and the sensor and the display device are oppositely disposed, and are all accommodated in the receiving space.
  • the housing has a receiving space, and the through hole is formed to an outer surface of the electronic device, and the first conductive member and the second conductive member are exposed at the through hole.
  • the sensor is housed in the receiving space.
  • the first conductive member and the second conductive member are closer to the outer surface than the sensor
  • the first detecting circuit determines, according to the third signal, whether the target object directly contacting the first conductive member and the second conductive member is a true finger.
  • the first detecting circuit provides a first signal to the first conductive member, and the second signal is provided through the intermediate member Giving a second conductive member, and receiving a third signal output from the second conductive member, and determining, according to the third signal, whether the target object contacting the first conductive member and the second conductive member is a human body, Therefore, the security of the electronic device can be improved.
  • FIG. 1 is a schematic structural view of an embodiment of an electronic device according to the present invention.
  • FIG. 2 is a schematic structural view of an embodiment of a button assembly of the electronic device shown in FIG. 1.
  • FIG. 3 is a circuit block diagram of a biometric module of the button assembly shown in FIG. 2.
  • FIG. 4 is an equivalent circuit diagram of the biometric module detecting true and false finger ⁇ .
  • FIG. 5 is a schematic structural view of another embodiment of the annular structure shown in FIG. 1.
  • 6 is a partial structural schematic view of another embodiment of the electronic device shown in FIG. 1.
  • FIG. 7 is a partial structural schematic view of still another embodiment of the electronic device shown in FIG. 1.
  • FIG. 1 is a schematic structural view of an embodiment of an electronic device according to the present invention.
  • 2 is a partial structural view of a button assembly of the electronic device shown in FIG. 1.
  • Figure 3 is a partial circuit block diagram of the biometric module of the button assembly shown in Figure 2.
  • Figure 4 is an equivalent circuit diagram of the biometric module detecting true and false finger ⁇ .
  • the electronic device 100 is a portable electronic product, a home-based electronic product, or a vehicle-mounted electronic product.
  • the application is not limited to the products listed herein, but may be applied to other suitable products.
  • the portable electronic products are various suitable electronic products such as mobile terminals, such as mobile phones, tablet computers, notebook computers, and wearable products; home electronic products such as smart door locks, televisions, refrigerators, and desktop computers. And other suitable electronic products; car-mounted electronic products such as car navigation, car DVD and other suitable electronic products.
  • the electronic device 100 includes a first conductive member 241, a second conductive member 243, a first detecting circuit 251, and an intermediate member 252.
  • the first conductive member 241 and the second conductive member 243 are spaced apart from each other.
  • the first detecting circuit 251 is connected to the first conductive member 241, and is connected to the second conductive member 242 through the intermediate member 252.
  • the first detecting circuit 251 is configured to provide a first signal to the first conductive member 241, a second signal to the second conductive member 243 through the intermediate member 252, and an output from the second conductive member 243. And a third signal, and determining, according to the third signal, whether the target object contacting the first conductive member 241 and the second conductive member 243 is a real organism.
  • the living body is, for example, a finger of a human body.
  • the present application is not limited thereto, and the living body may be any suitable part on the body such as the human ear, palm, wrist, arm, toe, and the like.
  • the organism is not limited to the human body, but may be a suitable portion on other suitable animal bodies.
  • a model that is generally counterfeited according to a certain part of a real human body is called a prosthesis or a fake human body.
  • a fingerprint film made of a conductive material is a type of prosthesis. The following mainly describes the case where the living body is a human body.
  • the first detecting circuit 251 of the electronic device 100 of the present application can determine whether the target object contacting the first conductive member 241 and the second conductive member 243 is a human body according to the third signal, therefore, The security of the electronic device 100 can be improved.
  • the "contact” means a touch or a click
  • the target object refers to an object that directly contacts the first conductive member 241 and the second conductive member 243.
  • the technical solution of the present application can determine the fingerprint directly contacting the first conductive member 241 and the second conductive member 243.
  • the membrane is a prosthesis.
  • the first conductive member 241 and the second conductive member 243 are disposed opposite to each other.
  • the first conductive member 241 and the second conductive member 243 may also be disposed adjacent to each other.
  • the first conductive member 241 and the second conductive member 243 include a conductive substance that can transmit an electrical signal, such as a metal material.
  • the application is not limited thereto, and the conductive substance may also be other suitable conductive materials or conductive composite materials.
  • the number of the first conductive member 241 and the second conductive member 243 is one, respectively, and may be modified, in other embodiments.
  • the number of the first conductive members 241 may also be plural, and the number of the second conductive members 243 may also be plural.
  • the first signal is a constant voltage signal
  • the second signal is a first driving signal
  • the third signal is a first sensing signal.
  • the constant voltage is, for example, a ground signal (GND).
  • the ground signal is generally a signal on the ground or system ground of the electronic device 100, and is usually a voltage signal of, for example, 0 volts (V). However, the voltage signal is also close to 0 V, even for other suitable voltages. signal.
  • the first conductive member 241 can also receive the ground signal through a resistive element.
  • the first driving signal is, for example, a square wave pulse signal, a triangular wave pulse signal, a sine wave signal, or the like.
  • the first detecting circuit 251 determines, according to the first sensing signal and the first driving signal, whether the target object contacting the first conductive member 241 and the second conductive member 243 is a human body. .
  • the first detecting circuit 251 determines the target according to, for example, a change in amplitude and/or phase of the first sensing signal with respect to the first driving signal. Whether the object is a real human body.
  • the first detecting circuit 251 acquires an electrical characteristic according to the first sensing signal and the first driving signal, and determines the target according to the electrical characteristic. Whether the object is a real human body.
  • the electrical characteristic is, for example, a complex impedance or a complex admittance.
  • Complex impedance includes impedance and impedance angle.
  • the first detecting circuit 251 knows to contact the first conductive member 241 and the second guide according to the impedance angle or/and the impedance, for example. Whether the target object of the electric piece 243 is a real human body.
  • the complex admittance includes admittance and admittance angles.
  • the first detecting circuit 251 can also know whether the target object contacting the first conductive member 241 and the second conductive member 243 is a human body according to the admittance angle or/and the admittance. Since the complex admittance is the reciprocal of the complex impedance, the following is mainly explained by the complex impedance.
  • the electrical characteristics are not limited to complex impedance, and other suitable electrical characteristics or the other suitable electrical characteristics may be combined with the complex impedance.
  • the first detecting circuit 251 may also compare the first sensing signal with a pre-stored signal or signal range to determine whether the target object is a real human body.
  • the intermediate element 252 includes any one of a voltage dividing element, a switching element, or a combination of both.
  • the intermediate element 252 includes a voltage dividing element ⁇
  • the voltage dividing element includes a resistor
  • the series connection is between the second conductive member 243 and the first detecting circuit 251.
  • the third signal is a signal on a side where the resistor is connected to the second conductive member 243.
  • the target object contacts the first conductive member 241 and the second conductive member 243, the target object and the resistor are connected in series.
  • the first detecting circuit 251 controls the switching element to be intermittently turned on and off.
  • the first detecting circuit 251 provides a second signal to the second conductive member 243 through the turned-on switching element.
  • the first detecting circuit 251 receives the third signal when the switching element is turned off.
  • the following is an example in which the true finger, the real finger is attached to the fingerprint film, and the fingerprint film contacts the first conductive member 241 and the second conductive member 243 as an example.
  • a circuit element connected between the first conductive member 241 and the second conductive member 243 is connected in series.
  • the circuit element connected between the first conductive member 241 and the second conductive member 243 should include the true finger in addition to the target object fingerprint film.
  • the electrical characteristics of the real finger, the real finger combined with the fingerprint film, and the fingerprint film are different, correspondingly, when the true finger and the real finger are combined with the fingerprint film and the fingerprint film are respectively connected to the first conductive member 241 and the second conductive member 243
  • the first detecting circuit 251 is different from the first sensing signals respectively received from the second conductive member 243, so that the first detecting circuit 251 determines the contact point according to the first sensing signal. Whether the target object of the first conductive member 241 and the second conductive member 243 is a real human body.
  • the electronic device 100 may further include an insulating member 245.
  • the insulating member 245 is disposed between the first conductive member 241 and the second conductive member 243.
  • the insulating member 245, the first conductive member 241, and the second conductive member 243 for example, cooperate to form a hollow closed structure or annular structure 24.
  • the color of the insulating member 245 is, for example, the same as or different from the colors of the first conductive member 241 and the second conductive member 241.
  • the annular structure 24 may be mainly a ring structure, a rectangular ring structure, an elliptical ring structure or the like.
  • the insulating member 245, the first conductive member 241, and the second conductive member 243 may also cooperate to form other suitable structures, and are not limited to the hollow closed structure or the annular structure 24.
  • the insulator 245 may also be omitted in some embodiments.
  • the insulating member 245, the first conductive member 241, and the second conductive member 24 3 are integrally connected.
  • the insulating member 245, the first conductive member 241, and the second conductive member 243 may not be integrally connected.
  • the first conductive member 241 and the second conductive member 243 are both a half ring structure or a near half ring structure.
  • the first conductive member 241 and the second conductive member 243 may also be other suitable structures, such as a strip structure, a ring structure, a curved structure, and a bend. Structure and so on.
  • the electronic device 100 may further include a housing (not labeled) having a receiving space, and the housing is provided with a through hole (not labeled) that opens to an outer surface of the electronic device 100.
  • the first conductive member 241 and the second conductive member 243 are exposed, for example, at the through hole to be in contact with the target object.
  • the first detecting circuit 251 is housed in the accommodating space, for example.
  • the through hole is provided, for example, at any one or a few of the front side, the back side, and the side of the electronic device 100.
  • the outer casing includes, for example, a protective cover 10 and a rear case 30.
  • the protective cover 10 and the rear case 30 cooperate to form the receiving space to receive electronic components in the receiving space.
  • the protective cover 10 is usually made of a transparent or translucent insulating medium to transmit light.
  • the protective cover 10 is, for example, a glass cover.
  • the rear case 30 is generally non-transmissive. However, the present application is not limited thereto. Depending on the type of the electronic device 100, the materials of the protective cover 10 and the rear case 30 can be selected as needed.
  • the through hole is provided in the protective cover 10.
  • the first conductive member 241 and the second conductive member 243 are disposed at the through hole so that a user touches the first conductive member 241 and the second conductive member 243.
  • the annular structure 34 is disposed at the through hole, and the gap between the inner side wall of the protective cover 10 and the through hole is small, so that the user touches or presses the
  • the first conductive member 241 and the second conductive member 243 are movable, and the first conductive member 241 and the second conductive member 243 are movable relative to the protective cover 10.
  • the electronic device 100 includes a biometric module 21.
  • the biometric module 21 is configured to confirm whether the target object contacting the biometric identification module 21 is a real human body, and perform biometric information sensing when it is determined to be a real human body.
  • the electronic device 100 performs corresponding functions according to the sensing result of the biometric module 21, such as unlocking, paying, transferring, launching an application (APP), or the like, or performing biometric information registration.
  • APP application
  • the biometric module 21 is a combination of any one or more of a fingerprint recognition module, a blood oxygen recognition module, a heartbeat recognition module, a pressure recognition module, and the like.
  • the biometric module 21 includes the first conductive member 241, the second conductive member 243, the intermediate member 252, the insulating member 245, and the first detecting circuit 251 to perform detection of a true and false human body.
  • the The biometric module 20 further includes a sensor 25.
  • the sensor 25 is, for example, a die or a chip (CWpset).
  • the sensor 25 is used to perform biometric information sensing.
  • the first conductive member 24 and the second conductive member 243 are close to each other. Or disposed around the sensor 25.
  • the annular structure 24 is disposed around the sensor 25.
  • the annular structure 24 is closer to the outer surface of the protective cover 10 with respect to the sensor 25.
  • the sensor 25 receives biometric information input of the target object from the hollow region of the annular structure 24.
  • the sensor 25 is, for example, any one or more of a fingerprint sensor, a blood oxygen sensor, a heartbeat sensor, a pressure sensor, and the like. Further, the sensor 25 is, for example, a combination of a capacitive sensor, an infrared sensor, an ultrasonic sensor, and an optical sensor, or a combination of several. Further, the capacitive sensor is, for example, a mutual capacitance type. Sensor or self-capacitive sensor.
  • the senor 25 includes, for example, a first pin (not shown), a second pin (not shown), and a third pin (not shown), wherein
  • the first detecting circuit 251 is connected to the first conductive member 241 through the first pin, and the first detecting circuit 251 sequentially passes through the intermediate member 252 and the second bow and the second conductive
  • the member 242 is connected, and the first detecting circuit 251 is further connected to the second conductive member through the third pin.
  • the first detecting circuit 251 outputs the first signal to the first conductive member 241 through the first pin, and outputs the first through the intermediate element 252 and the second bow I Two signals are sent to the second conductive member 243, and the third signal is received through the third pin.
  • the biometric module 21 may further include a flexible circuit board 26 and a reinforcing board 27.
  • the flexible circuit board 26 may further include a flexible circuit board 26 and a reinforcing board 27.
  • the reinforcing plate 27 is attached to the side of the flexible circuit board 26 facing away from the sensor 25 to strengthen the strength of the flexible circuit board 26 in conformity with the sensor 25.
  • the biometric module 21 is exposed at the through hole.
  • the biometric module 21 further includes a cover plate 28 disposed above the sensor 25, that is, the cover plate 28 is exposed to the through hole.
  • the cover 28 is further provided with a light shielding layer facing the sensor 25; when the sensor 25 is a packaged chip, the sensor 25 is formed with a package. body.
  • the light shielding layer and the package The color is preferably the same as the color of the light shielding layer or the casing below the protective cover 10.
  • the cover plate 28 is, for example, a sapphire cover, a cover glass, a ceramic cover or the like.
  • the cover plate 28 may have various suitable shapes such as a circular shape, an elongated shape, a square shape, and an elliptical shape.
  • the cover plate 28 is formed as a recessed area with respect to the protective cover 10 to guide the user to touch the biometric module 21.
  • the cover plate 28 can also be omitted.
  • the sensor 25 includes a plurality of sensing electrodes and a second detecting circuit 257.
  • the biometric module 21 can further include a control circuit 253.
  • the plurality of sensing electrodes are generally arranged in an array, and correspondingly, the plurality of sensing electrodes arranged in an array are sensing arrays 255. However, in other embodiments, the plurality of sensing electrodes may be arranged in other regular manners or irregular manners, and the present invention is not particularly limited thereto.
  • the second detecting circuit 257 is connected to the sensing array 255 and the control circuit 253, respectively.
  • the control circuit 253 is further coupled to the first detection circuit 251.
  • the second detecting circuit 257 is configured to provide a second driving signal to the sensing array 255, drive the sensing array 255 to perform biometric information sensing, and receive the output from the sensing array 255. a second sensing signal to acquire biometric information according to the second sensing signal.
  • the control circuit 253 triggers the second detecting circuit 253 to operate according to the command signal, and drives the sensing array 255 to perform biometric information sensing on the real human body.
  • the first detecting circuit 251 determines that the target object contacting the first conductive member 241 and the second conductive member 243 is a prosthesis, no corresponding instruction signal is provided to the control circuit 253 or another different command signal is provided. To the control circuit 253, the control circuit 253 does not trigger the second detection circuit 257 to operate.
  • the first detecting circuit 251 may be directly connected to the second detecting circuit 257 instead of the control circuit 253.
  • the first detecting circuit 251 can directly control whether the second detecting circuit 257 is driven to drive the sensing array 255 to perform biometric information sensing.
  • the first detection circuit 251, the control circuit 253, the second detection circuit 257, the intermediate element 252, and the sensing array 255 are all integrated in the sensor 25 to improve the sensor 25. Integration. However, in other embodiments, the first detecting circuit 251 and the control circuit 25 are variably 3. One or more of the second detection circuit 257, the intermediate element 252, and the sensing array 255 may also be disposed on the flexible circuit board 26 or integrated in other chips.
  • the first detecting circuit 251 can be configured to provide the ground signal (GND) to the first conductive member 241 and the second conductive member 243. In order to shield the external detection interference of the sensor 25, and improve the sensing accuracy.
  • GND ground signal
  • the first detecting circuit 251 drives the first conductive member 241 and the second conductive member 24
  • the first detecting circuit 251 detects that the first conductive member 241 or/and the second conductive member 243 are touched, the first driving signal is supplied to the first conductive member 241, and the second conductive member 243 is received.
  • the first sensing signal determines whether the target object contacting the first conductive member 241 and the second conductive member 243 is a human body. As such, the power consumption of the electronic device 100 is saved.
  • the senor 25 may replace the first detecting circuit 251, the first conductive member 241 and the second conductive member 243 to perform the touch sensing, or It is also possible that the touch sensing is performed by the sensor 25 with one or both of the first conductive member 2 41 and the second conductive member 243. That is, the sensor 25 can also be used to perform touch sensing first to detect whether a target object touches the biometric module 21.
  • the electronic device 100 further includes a display device and is disposed under the protective cover 10 to perform image display. Defining the protective cover 10 The area corresponding to the display screen is the display area, and the other areas are the non-display areas.
  • the biometric module 21 is disposed opposite to the display device and disposed in the non-display area.
  • the sensor 25 of the biometric module 21 can also be disposed corresponding to the display area.
  • the display device can further be used as a touch device to perform touch sensing.
  • the electronic device 20 may further include a button assembly 20.
  • the button assembly 20 includes the biometric module 21 and the gateway 23.
  • the switch 23 is disposed below the biometric module 21.
  • the biometric module 21 is adjacent to the protective cover 10 with respect to the switch 23.
  • the switch 23 is, for example, tactile.
  • the switch 23 is for example used to receive any force exerted by the user's finger on the button assembly 20, and an electrical signal representative of the user's finger pressing the button assembly 20 is passed through the flexible circuit.
  • the board 26 or another different flexible circuit board is transferred to a button circuit (not shown) and provides tactile feedback to the user's finger to indicate that the button assembly 20 is depressed.
  • the button circuit is connected to the processor 40, for example
  • the electronic components such as the sensor 25, the flexible circuit board 26, the reinforcing member, the switch 23, the processor 40, and the button circuit are housed in the housing space of the housing.
  • the electronic device 100 may include other circuits and the like in addition to the elements listed above. It is also feasible for the person skilled in the art to add or reduce certain components in response to the electronic device 100. In this application, the components related to the utility model are listed to highlight the key points of the utility model.
  • FIG. 5 is a schematic structural view of another embodiment of the annular structure 24 shown in FIG. 2.
  • the first conductive member 241 and the second conductive member 243 are both a hollow closed structure or a ring structure, wherein the second conductive member 243 is smaller than the first conductive member 241, and
  • the insulating member 245 is disposed between the first conductive member 241 and the second conductive member 24 3 in a hollow region of the first conductive member 241.
  • the insulating member 245 also corresponds to a hollow closed structure or a ring structure, and the first conductive member 241 is connected to the second conductive member 243.
  • the insulating member 245 is not limited to a hollow closed structure or a ring structure, and may be other segmented structures.
  • the color of the insulating member 245 is, for example, the same as or different from the colors of the first conductive member 241 and the second conductive member 241.
  • FIG. 6 is a partial structural diagram of another embodiment of the electronic device 100 of FIG.
  • the inner side wall of the through hole H of the protective cover 10 extends horizontally from the two insulating members 245.
  • the two insulators 245 are disposed opposite each other.
  • the first conductive member 241 and the second conductive member 243 are insulated from each other by the two insulating members 245.
  • the two insulating members 245, the first conductive members 241, and the second conductive members 243 cooperate to form a hollow closed structure or a ring structure.
  • FIG. 7 is a partial structural diagram of another embodiment of the electronic device 100 of FIG.
  • Two protective through holes HI, H2 are provided in the protective cover 10.
  • the first conductive member 241 and the second conductive member 243 are received and exposed to the through holes H1, H2 so as to be in contact with the target object.
  • the senor 25 may be disposed under the protective cover 10, for example, corresponding to a region between the two through holes H1, H2 on the protective cover 10. Accordingly, the cover plate 28 can be omitted.
  • the two-shaped through holes H1, H2 are not limited to the strip shape, and may be other suitable shapes, such as curved through holes and the like.
  • the first conductive member 241 and the second conductive member 243 may also be phase
  • the present invention is not particularly limited as long as the target object contacts the biometric module 21 to perform detection of the true and false human body, the first conductive member 241.
  • Both the second conductive member 243 and the second conductive member 243 may be in contact with the target object.
  • the biometric module 21 is also not limited to being disposed on the electronic device 100, and may be disposed on other devices.
  • the through hole is disposed on the rear case 30, for example, the first conductive member.
  • the first conductive member 241 and the second conductive member 243 are exposed at the through hole, and the sensor 25 is disposed corresponding to the through hole region.
  • the first conductive member 241 and the second conductive member 243 are closer to the outer surface of the rear case 30 than the sensor 25.
  • the through hole is disposed on a sidewall of the outer casing corresponding electronic device 100, and the sensor 25 is disposed corresponding to the through hole region.
  • the prior art electronic device usually has a button component with a fingerprint recognition module disposed on the front side, and lacks a physical touch button, resulting in a user's poor experience in using the electronic device.
  • the present application proposes to use the first conductive member 241 and the second conductive member 243 as touch buttons.
  • the first detecting circuit 251 is configured to drive the first conductive member 241 and the second conductive member 243 to perform touch sensing.
  • the present application utilizes the first conductive member 241 and the second conductive member 243 as touch buttons without adding a touch electrode, the user experience of the electronic device 100 can be improved.
  • the first conductive member 241 and the second conductive member 243 can be used as a first touch button and a second touch button, respectively, having different functions or the same.
  • the first touch button is any one or more of a menu button, a navigation button, a volume control button, a return button, and the like
  • the second touch button is a return button, a navigation button, a volume control button, a return button, and the like. Any one or several of them.
  • the second touch button is a menu button; when the first touch button is a volume up button ⁇ , the second touch button is a volume down button; When the first touch button is scrolling left or up, The second touch button corresponds to a rightward or downward scroll key; when the first touch button is a forward page key, the second touch button is a page backward button.
  • the first conductive member 241 and the second conductive member 243 are listed as a touch button of some functions. The present disclosure is not limited thereto.
  • the first conductive member 241 and the second portion are not limited thereto.
  • the conductive member 243 can also be a touch button of other functions.
  • the first conductive member 241 and the second conductive member 243 can also be used as Zoom In and Zoom Out buttons respectively. Out) and so on.
  • the first conductive member 241 and the second conductive member 243 function as a touch button of a variety of functions, and the manufacturer or the user can flexibly set according to requirements.
  • the processor 40 controls the electronic device 100 to perform a corresponding function.
  • the user when browsing a webpage, the user can control the webpage to scroll up by touching the first conductive member 241.
  • the first detecting circuit 251 supplies the grounding signal to the first conductive member 241 and the second conductive member 243.
  • the first detecting circuit 251 may also drive the first conductive member 241 and the second conductive member 243 to perform touch sensing. Measurement. When the touch is detected, the first conductive member 241 and the second conductive member 243 are driven to perform true and false human body sensing. When it is determined that the target object contacting the first conductive member 241 and the second conductive member 243 is a true human body, the sensor 25 starts performing biometric information sensing on the real human body.
  • the processor 40 corresponds to triggering the biometric module 21 to work.
  • the first detecting circuit 251 detects that the first conductive member 241 or/and the second conductive member 243 are touched by the target object, the first detecting circuit 251 then detects contact with the first conductive member.
  • the target object of the 241 and the second conductive member 243 is a real human body; in contrast, when the user performs web browsing without performing biometric information sensing, the first detecting circuit 251 drives the first conductive member 241 and the second The conductive member 243 performs touch sensing, and the first conductive member 241 and the second conductive member 243 respectively function as touch buttons.
  • the control electronic device 100 performs corresponding functions, such as page turning.
  • one of the first conductive member 241 and the second conductive member 243 It can be used as a touch button, while the other is not available as a touch button.
  • the biometric module 21 of the electronic device 100 of the present application includes the first conductive member 241 and the second conductive member 243 that are separated from each other, which can not only detect the true and false human body, but also function as different or the same function. Touch the button. Accordingly, the electronic device 100 can further enhance the user experience.
  • the first sensing signal or the measured complex impedance is associated with the pressing force or/and the pressing area of the target object.
  • the first sensed signal or the measured complex impedance varies with a change in the pressing force or/and area of the target object.
  • the first detecting circuit 251 performs the detection of the true and false human body on the target object contacting the first conductive member 241 and the second conductive member 243, for the precision of the detection, for example, the impedance of the complex impedance or / and the impedance angle takes a mean value between the detection turns to determine whether the target object is a real human body.
  • first conductive member 241 and the second conductive member 243 of each of the above embodiments for example, all or part of the conductive material.
  • the appearance of the product for example, for the annular structure 24 of the embodiment shown in FIG. 2 and FIG. 5, in the case of ensuring the sensing accuracy of the true and false human body, it may also be in the ring shape.
  • the outer surface of structure 24 is wrapped with an insulating layer, such as an insulating tape.
  • the appearance of the annular structure 24 is a complete structure of the same color.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Data Mining & Analysis (AREA)
  • Evolutionary Biology (AREA)
  • Evolutionary Computation (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)

Abstract

Dispositif électronique comprenant un boîtier et un module de reconnaissance biologique (21). Un trou traversant est formé dans le boîtier. Le module de reconnaissance biologique (21) comprend un capteur (25), un premier élément conducteur (241), un second élément conducteur (243), un élément intermédiaire (252) et un premier circuit de détection (251). Le capteur (25) est utilisé pour exécuter la détection d'informations de caractéristiques biologiques. Le premier élément conducteur (241) et le second élément conducteur (243) sont disposés à un intervalle d'une manière isolée et sont exposés au niveau de la position du trou traversant, de manière à être en contact avec un objet cible. Le premier élément conducteur (241) et le second élément conducteur (243) sont adjacents à l'élément sensoriel (25). L'élément intermédiaire (252) est relié au second élément conducteur (243). Le premier circuit de détection (251) est connecté au premier élément conducteur (241), et est connecté au second élément conducteur (243) au moyen de l'élément intermédiaire (252). Le premier circuit de détection (251) est utilisé pour fournir un premier signal au premier élément conducteur (241), fournir un deuxième signal au second élément conducteur (243) au moyen de l'élément intermédiaire (252), et recevoir un troisième signal émis par le second élément conducteur (243) et déterminer si l'objet cible en contact avec le premier élément conducteur (241) et le second élément conducteur (243) est un corps humain réel en fonction du troisième signal.
PCT/CN2016/104273 2016-11-01 2016-11-01 Dispositif électronique WO2018081932A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201690000146.9U CN207817731U (zh) 2016-11-01 2016-11-01 电子设备
PCT/CN2016/104273 WO2018081932A1 (fr) 2016-11-01 2016-11-01 Dispositif électronique

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Application Number Priority Date Filing Date Title
PCT/CN2016/104273 WO2018081932A1 (fr) 2016-11-01 2016-11-01 Dispositif électronique

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5953441A (en) * 1997-05-16 1999-09-14 Harris Corporation Fingerprint sensor having spoof reduction features and related methods
CN1729472A (zh) * 2002-12-20 2006-02-01 萨甘股份有限公司 确定携带指纹的部件的生命特征的方法
CN105631402A (zh) * 2015-12-18 2016-06-01 麦克思商务咨询(深圳)有限公司 指纹识别装置及方法
CN105930704A (zh) * 2016-04-01 2016-09-07 乐视控股（北京）有限公司 一种指纹识别方法、装置及智能终端
CN105981049A (zh) * 2014-02-25 2016-09-28 Hid环球公司 生物阻抗欺骗检测

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5953441A (en) * 1997-05-16 1999-09-14 Harris Corporation Fingerprint sensor having spoof reduction features and related methods
CN1729472A (zh) * 2002-12-20 2006-02-01 萨甘股份有限公司 确定携带指纹的部件的生命特征的方法
CN105981049A (zh) * 2014-02-25 2016-09-28 Hid环球公司 生物阻抗欺骗检测
CN105631402A (zh) * 2015-12-18 2016-06-01 麦克思商务咨询(深圳)有限公司 指纹识别装置及方法
CN105930704A (zh) * 2016-04-01 2016-09-07 乐视控股（北京）有限公司 一种指纹识别方法、装置及智能终端

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