WO2018081934A1 - Module de reconnaissance biologique et terminal mobile - Google Patents

Module de reconnaissance biologique et terminal mobile Download PDF

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Publication number
WO2018081934A1
WO2018081934A1 PCT/CN2016/104275 CN2016104275W WO2018081934A1 WO 2018081934 A1 WO2018081934 A1 WO 2018081934A1 CN 2016104275 W CN2016104275 W CN 2016104275W WO 2018081934 A1 WO2018081934 A1 WO 2018081934A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive member
biometric
sensor
detecting circuit
module according
Prior art date
Application number
PCT/CN2016/104275
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 CN201690000152.4U priority Critical patent/CN207586940U/zh
Priority to PCT/CN2016/104275 priority patent/WO2018081934A1/fr
Publication of WO2018081934A1 publication Critical patent/WO2018081934A1/fr

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Classifications

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

Definitions

  • the present invention relates to the field of sensor recognition technology, and in particular, to a biometric module and a mobile terminal having the functions 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 a biometric recognition module and a mobile terminal having the functions of recognizing true and false real objects.
  • a biometric module includes:
  • a sensor configured to perform biometric information sensing
  • a first detecting circuit configured to provide a constant voltage signal to the first conductive member, provide a first driving signal to the second conductive member through the intermediate component, and receive a first sense from the output of the second conductive member And measuring a signal, and determining, according to the first sensing signal, whether the target object contacting the first conductive member and the second conductive member is a human body.
  • the constant voltage signal is a ground 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 second sensing signal is a signal of a side of the resistor connected to the second conductive member.
  • the target object when the target object contacts the first conductive member and the second conductive member, the target object is connected in series with the resistor.
  • the first detecting circuit determines, according to the first driving signal and the first sensing signal, whether the target object contacting the first conductive member and the second conductive member is a human body .
  • the first detecting circuit obtains a complex impedance characteristic of the target object according to the first driving signal and the first sensing signal to determine whether the target object is a true finger.
  • the biometric module further includes an insulating member disposed between the first conductive member and the second conductive member.
  • the insulating member connects the first conductive member and the second conductive member.
  • the first conductive member and the second conductive member are a strip structure, a semi-ring structure, and a ring structure
  • Any one or more of a curved structure and a bent structure Any one or more of a curved structure and a bent structure.
  • the senor corresponds to whether to perform biometric information sensing.
  • the sensor when the first detecting circuit detects that the target object is a real human body, the sensor is triggered to perform biometric information sensing.
  • the first detecting circuit is further configured to drive the first conductive member and the second conductive member to perform touch sensing, when the first detecting circuit detects the first conductive member or After the second conductive member is touched, driving the first conductive member and the second conductive member to perform true and false human body sensing; or
  • the senor is further configured to perform touch sensing, and after the sensor detects a touch of the target object, the first detecting circuit drives the first conductive member and the second conductive member to perform a true dummy Body sensing.
  • the first detecting circuit when the sensor performs biometric information sensing, the first detecting circuit provides a grounding signal to the first conductive member and the second conductive member.
  • the biometric module includes an opposite first side and a second side, wherein the first side is used for receiving Receiving biometric information input, the biometric module further includes a flexible circuit board disposed on the second side and electrically connected to the sensor.
  • the biometric module further includes a reinforcing plate disposed on a side of the flexible circuit board facing away from the sensor.
  • the biometric module further includes a cover, and the cover is disposed on the sensor.
  • the biometric module is a fingerprint recognition module.
  • the first conductive member and the second conductive member are both hollow annular structures, the first conductive member surrounds the second conductive member, and the sensor corresponds to the second The hollow area of the conductive member is disposed.
  • the insulating member, the first conductive member, and the second conductive member cooperate to form a hollow closed structure or a ring structure, and the sensor corresponds to the closed structure or the annular structure Hollow area setting
  • the first conductive member and/or the second conductive member are touched by the user's finger.
  • the first conductive member and the second conductive member are lifted relative to the sensor, and a recessed region is formed between the sensor and the sensor.
  • the first conductive member and/or the second conductive member also function as a touch button, and the first detecting circuit is further configured to correspondingly drive the first conductive member and/or the The second conductive member performs touch sensing.
  • the first detecting circuit controls the switching between the switching component to be turned on and off.
  • the first detecting circuit when the switching element is turned on, the first detecting circuit provides a first driving signal to the second conductive member through the conductive switching element; when the switching element is turned off, The first detection circuit receives a first sensed signal from an output of the second conductive member.
  • the first detecting circuit determines, according to the first sensing signal, whether a target object directly contacting the first conductive member and the second conductive member is a human body.
  • the first detecting circuit determines, according to the first sensing signal, whether a target object directly contacting the first conductive member and the second conductive member is a true finger.
  • the present invention further provides a mobile terminal, comprising the biometric module according to any one of the above.
  • the mobile terminal includes a casing, and the casing is provided with a through hole leading to an outer surface of the mobile terminal, and the first conductive member and the second conductive member are disposed at the through hole , to be contacted by the target object.
  • the biometric module includes the first conductive member and the second conductive member
  • the first detecting circuit provides a first signal to the first conductive member
  • the intermediate component provides a first Transmitting a second signal to the second conductive member, and receiving a third signal from the second conductive member output, and determining, according to the third signal, whether the target object contacting the first conductive member and the second conductive member is true
  • 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.
  • FIG. 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 schematic view of a button assembly of the electronic device shown in FIG. 1.
  • 3 is a partial circuit block diagram of the 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 ⁇ .
  • 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 also 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 insulated 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 application is not limited thereto, and the living body may be any suitable part on the body such as the human ear, the palm, the wrist, the arm, the 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 may determine to directly contact the first conductive member 241 and the The fingerprint film of the second conductive member 243 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 material, which can be transmitted.
  • a power transmission signal such as a metal material.
  • the application is not limited thereto, and the conductive material 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, for example, whether the target object contacting the first conductive member 241 and the second conductive member 243 is a human body according to the impedance angle or/and the impedance.
  • 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, but may be other suitable electrical characteristics or the other A suitable electrical property is 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.
  • a circuit element connected between the first conductive member 241 and the second conductive member 243 is connected in series.
  • the first conductive member 241 and the second conductive member 243 are contacted by the fingerprint film.
  • 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 insulator 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. However, in other embodiments, the insulating member 245, the first conductive member 241, and the second conductive member 243 may not be integrally connected.
  • first conductive member 241 and the second conductive member 243 are both a half ring structure or a near half ring structure.
  • 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 bent structure. and many more.
  • 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 disposed, for example, on one or more of the front side, the back side, and the side of the electronic device 100 By.
  • 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. Additionally, 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 a target object from a hollow region of the annular structure 24.
  • the sensor 25 is, for example, a fingerprint sensor or a blood oxygen sensor. , a combination of any one or more of a heartbeat sensor, a pressure sensor, and the like.
  • the sensor 25 is, for example, any one or a combination of a capacitive sensor, an infrared sensor, an ultrasonic sensor, and an optical sensor.
  • the capacitive sensor is, for example, a mutual capacitance sensor or a self capacitance sensor.
  • the senor 25 includes, for example, a first pin (not shown), a second pin (not shown), and a third pin (not shown), where 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 stiffener 27.
  • the flexible circuit board 26 may further include a stiffener 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 color of the light shielding layer and the package body is preferably the same as the color of the light shielding layer or the casing under the protective cover 10.
  • the cover 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, a long strip 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. However, in some embodiments, the cover plate 28 may 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 the sensing arrays 255. However, in other embodiments, the plurality of sensing electrodes may be arranged in other regular manners or in an irregular manner, 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 connected 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 command 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 also 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, one or more of the first detecting circuit 251, the control circuit 253, the second detecting circuit 257, the intermediate component 252, and the sensing array 255 may also be set. On the flexible circuit board 26, it is also 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 3 Before performing the detection of the true and false human body, it may also be used to provide a pulse signal to the first conductive member 241 and the second conductive member 243, and drive the first conductive member 241 and the second conductive member 243 to perform touch sensing. After 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 gateway 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, passing an electrical signal indicative of the user's finger pressing the button assembly 20 through the flexible circuit board 26 or another different softness.
  • the 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, for example, to the processor 40
  • 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. For skills For the technician of the domain, it is also feasible for the electronic device 100 to increase or decrease certain components. In this application, the components related to the utility model are mainly 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 an area between the two through holes H1, H2 on the protective cover 10. Accordingly, the cover 28 can be omitted.
  • the two through holes H1 and H2 are not limited to the strip shape, and may be other suitable shapes.
  • 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. And the second conductive member 243 can be contacted by 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 first touch buttons and second touch buttons, respectively, having different functions or the same functions.
  • 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 a left or up scroll key, the second touch button corresponds to a rightward or downward scroll key; when the first touch button is a forward page key, the The second touch button is a page backward key ⁇ .
  • 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 electric component 243 serves as a touch button of a variety of functions, and the manufacturer or the user can flexibly set it as needed.
  • 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 a touch feeling. 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 can be used as a touch button, and the other is not feasible 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 a pressing force or/and a pressing area of the target object.
  • the first sensing signal or The measured complex impedance changes as the pressing force or/and area of the target object changes.
  • 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

L'invention concerne un module de reconnaissance biologique (21) et un terminal mobile. 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) est adjacent au capteur (25). Le second élément conducteur (243) est adjacent au capteur (25), et le second élément conducteur (243) et le premier élément conducteur (241) sont disposés à un intervalle. L'élément intermédiaire (252) est relié au second élément conducteur (243). Le premier circuit de détection (251) est utilisé pour fournir un signal de tension constante au premier élément conducteur (241), fournir un premier signal d'attaque au second élément conducteur (243) au moyen de l'élément intermédiaire (252), et recevoir un premier signal de détection 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 selon le premier signal de détection. Le terminal mobile comprend le module de reconnaissance biologique (21).
PCT/CN2016/104275 2016-11-01 2016-11-01 Module de reconnaissance biologique et terminal mobile WO2018081934A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201690000152.4U CN207586940U (zh) 2016-11-01 2016-11-01 生物识别模组和移动终端
PCT/CN2016/104275 WO2018081934A1 (fr) 2016-11-01 2016-11-01 Module de reconnaissance biologique et terminal mobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/104275 WO2018081934A1 (fr) 2016-11-01 2016-11-01 Module de reconnaissance biologique et terminal mobile

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WO2018081934A1 true WO2018081934A1 (fr) 2018-05-11

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CN (1) CN207586940U (fr)
WO (1) WO2018081934A1 (fr)

Citations (3)

* 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
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
CN105981049A (zh) * 2014-02-25 2016-09-28 Hid环球公司 生物阻抗欺骗检测

Patent Citations (3)

* 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
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

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