CN106845409B - Fingerprint identification module and mobile terminal - Google Patents
Fingerprint identification module and mobile terminal Download PDFInfo
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- CN106845409B CN106845409B CN201710047046.2A CN201710047046A CN106845409B CN 106845409 B CN106845409 B CN 106845409B CN 201710047046 A CN201710047046 A CN 201710047046A CN 106845409 B CN106845409 B CN 106845409B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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Abstract
The embodiment of the invention discloses a fingerprint identification module and a mobile terminal, wherein the fingerprint identification module comprises a fingerprint chip, a cover plate, a circuit board and a metal ring, wherein: the cover plate is arranged on one side of the fingerprint chip; the circuit board is arranged on the other side of the fingerprint chip, which is far away from the cover plate; the metal ring surrounds the cover plate and is electrically connected with the conductive reinforcing plate of the mobile terminal. The embodiment of the invention can reduce the interference of the common-mode interference signal to the fingerprint acquisition signal when the mobile terminal is charged.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a fingerprint identification module and a mobile terminal.
Background
The application of mobile terminals such as smart phones is more and more extensive, and people in modern life are basically hands and mobile phones. At present, many mobile phones have a fingerprint unlocking function. When the fingerprint unblock, the sensor transmission fingerprint of fingerprint identification module gathers signals (for example, square wave signal, sinusoidal signal etc.), and this fingerprint gathers signals can form fingerprint image data through gathering the electric capacity size between finger and the sensor.
When the mobile phone is charged, a high-frequency interference signal, namely a common-mode interference signal, can be formed when a switching tube in the charger is switched on and off at a high speed. At this moment, if the user uses the fingerprint unblock, common mode interference signal can bring the interference to the fingerprint collection signal of fingerprint identification module transmission.
Disclosure of Invention
The embodiment of the invention provides a fingerprint identification module and a mobile terminal, which can reduce the interference of a common-mode interference signal to a fingerprint acquisition signal when the mobile terminal is charged.
The first aspect of the embodiments of the present invention provides a fingerprint identification module, which is applied to a mobile terminal, where the fingerprint identification module includes a fingerprint chip, a cover plate, a circuit board, and a metal ring, where:
the cover plate is arranged on one side of the fingerprint chip;
the circuit board is arranged on the other side, far away from the cover plate, of the fingerprint chip;
the metal ring surrounds the cover plate, and the metal ring is electrically connected with the conductive reinforcing plate of the mobile terminal.
A second aspect of the embodiments of the present invention provides a mobile terminal, including the fingerprint identification module provided in the first aspect of the embodiments of the present invention, a processor, a memory, and a communication interface,
the processor is connected with the memory and the communication interface;
the memory stores executable program code, and the communication interface is for wireless communication.
The fingerprint identification module in the embodiment of the invention comprises a fingerprint chip, a cover plate, a circuit board and a metal ring, wherein: the cover plate is arranged on one side of the fingerprint chip; the circuit board is arranged on the other side of the fingerprint chip, which is far away from the cover plate; the metal ring surrounds the cover plate and is electrically connected with the conductive reinforcing plate of the mobile terminal. When the mobile terminal is charging, if a user uses the fingerprint identification module on the mobile terminal to unlock the fingerprint, the common-mode interference signal generated by the charger can cause interference to the fingerprint acquisition signal transmitted by the fingerprint identification module. In order to reduce the interference of the common-mode interference signal to the fingerprint acquisition signal transmitted by the fingerprint identification module, the embodiment of the invention increases the capacitance between the finger and the metal ring by electrically connecting the metal ring in the fingerprint identification module with the conductive reinforcing plate of the mobile terminal, so that the backflow path of the fingerprint acquisition signal transmitted by the fingerprint chip is shortened, and the interference of the common-mode interference signal to the fingerprint acquisition signal is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fingerprint identification module according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fingerprint collection signal return path according to an embodiment of the disclosure;
FIG. 3 is a schematic structural diagram of another fingerprint identification module according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of another fingerprint identification module disclosed in the embodiments of the present invention;
FIG. 5 is a schematic flowchart of a fingerprint acquisition method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a mobile terminal according to the present disclosure;
FIG. 7 is a block diagram of another exemplary mobile terminal according to the present disclosure;
fig. 8 is a schematic structural diagram of another mobile terminal according to the present disclosure.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The Mobile terminal according to the embodiment of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and the like, which have wireless communication functions. For convenience of description, the above-mentioned devices are collectively referred to as a mobile terminal.
The following describes embodiments of the present invention in detail.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a fingerprint identification module according to an embodiment of the present invention, and as shown in fig. 1, the fingerprint identification module 10 includes a fingerprint chip 101, a cover plate 102, a circuit board 103, and a metal ring 104, where:
the cover plate 102 is arranged on one side of the fingerprint chip 101;
the circuit board 103 is arranged on the other side of the fingerprint chip 101 away from the cover plate 102;
the metal ring 104 surrounds the cover plate 102, and the metal ring 104 is electrically connected with the conductive reinforcing plate 20 of the mobile terminal.
In the embodiment of the invention, the metal ring 104 is also called a fingerprint decoration ring, a fingerprint bezel and a fingerprint ring. The metal ring 104 surrounds the cover plate 102 in a manner that the metal ring 104 and the cover plate 102 are electrically connected. The metal ring 104 may be one or more of circular, oval, rectangular, and polygonal. The material of the metal ring 104 may be stainless steel, gold, silver, copper, or the like.
When the mobile terminal is charging, if a user uses the fingerprint identification module 10 on the mobile terminal to perform fingerprint unlocking, the common-mode interference signal generated by the charger will cause interference to the fingerprint acquisition signal transmitted by the fingerprint identification module 10. In order to reduce the interference of the common-mode interference signal to the fingerprint acquisition signal transmitted by the fingerprint identification module 10, the embodiment of the invention increases the capacitance between the finger of the user and the metal ring 104 by electrically connecting the metal ring 104 in the fingerprint identification module 10 and the conductive reinforcing plate 20 of the mobile terminal, so that the backflow path of the fingerprint acquisition signal transmitted by the fingerprint chip is shortened, and the interference of the common-mode interference signal to the fingerprint acquisition signal is reduced.
Wherein the conductive reinforcing plate 20 can be located on the circuit board 103. The conductive stiffener 20 may be a stainless steel stiffener, a steel plate, or the like.
As shown in fig. 2, fig. 2 is a schematic diagram of a fingerprint collection signal reflow path according to an embodiment of the present invention. As shown in fig. 2, the fingerprint acquisition signal transmitted by the fingerprint identification module 10 has two return paths. One is via finger (finger), ferrule (brezel) and sensor (sensor) return flow, including the capacitance C of the fingerfingerResistance R of the metal ringbezelCapacitor C of metal ringbezelCapacitance C of sensor of pattern recognition module 10sensor. The other is reflow through a human body (body) and a Flexible Printed Circuit (FPC). Capacitance C comprising a fingerfingerCapacitance C of human bodybodyCapacitor C of flexible circuit boardFPC。
The shorter the backflow path of the fingerprint acquisition signal is, the less the interference of the common-mode interference signal on the fingerprint acquisition signal is. Because the frequency of the fingerprint acquisition signal is hundreds of KHz or even several MHz, the frequency is high, in order to ensure the passing of the high-frequency signal, the capacitance value of the capacitor in the fingerprint acquisition signal backflow path needs to be increased, so as to shorten the backflow path of the fingerprint acquisition signal. Due to the capacitance C of the fingerfingerCapacitance C of sensor of pattern recognition module 10sensorCapacitance C of human bodybodyCapacitor C of flexible circuit boardFPCThe size of the metal ring is not easy to change, and the invention can be implemented by adjusting the resistance R of the metal ringbezelCapacitance C with metal ringbezelThe size of the fingerprint acquisition signal is reduced, so that the backflow of the fingerprint acquisition signal is shortened, and the interference of a common-mode interference signal on the fingerprint acquisition signal is reduced. In particular, by reducing the resistance R of the ferrulebezelAnd the capacitance C of the metal ring is increasedbezelTo be implemented.
Generally, in the prior art, the eyelet 104 is merely decorative. In the embodiment of the present invention, the metal ring 104 is electrically connected to the conductive reinforcing plate 20 of the mobile terminal. Fingerprint identification module group touched (or pressed) by finger of user10, a capacitance C formed between the user's finger and the metal loop 104bezelS/4 pi kd. Where ε is the dielectric constant of the dielectric between the user's finger and the metallic ring 104, s is the relative area between the user's finger and the metallic ring 104, k is the electrostatic constant, and d is the distance between the user's finger and the metallic ring 104. Since the distance between the user's finger and the metal loop 104 is difficult to change, the dielectric between the user's finger and the metal loop 104 is also difficult to change. Therefore, C to be improvedbezelThe size may be increased by increasing the relative area between the user's finger and the eyelet 104. As can be seen from fig. 1, the area of the metal loop 104 itself is very small, and after the metal loop 104 is electrically connected to the conductive reinforcing plate 20 of the mobile terminal, the relative area between the user's finger and the metal loop 104 is equivalent to the relative area between the user's finger and the conductive reinforcing plate 20. Since the area of the conductive reinforcing plate 20 is much larger than that of the finger, the relative area between the finger of the user and the conductive reinforcing plate 20 is much larger than that between the finger of the user and the metal ring 104, so as to increase the CbezelThe size shortens the backward flow of the fingerprint acquisition signal and reduces the interference of the common-mode interference signal to the fingerprint acquisition signal.
Referring to fig. 3, fig. 3 is a schematic structural diagram of another fingerprint identification module according to an embodiment of the present invention. As shown in fig. 3, the fingerprint identification module 10 includes a fingerprint chip 101, a cover plate 102, a circuit board 103 and a metal ring 104, wherein:
the cover plate 102 is arranged on one side of the fingerprint chip 101;
the circuit board 103 is arranged on the other side of the fingerprint chip 101 away from the cover plate 102;
the metal ring 104 surrounds the cover plate 102, and the metal ring 104 is electrically connected with the conductive reinforcing plate 20 of the mobile terminal;
the conductive reinforcing plate 20 is electrically connected to the middle frame 30 of the mobile terminal through a conductive cloth.
The conductive reinforcing plate 20 may be electrically connected to the middle frame 30 of the mobile terminal through another conductive body (e.g., a conductive plate, a conductive wire, or a conductive foam).
As can be seen from fig. 3, the area of the eyelet 104 itself is very small,after the metal ring 104 is electrically connected to the conductive reinforcing plate 20 of the mobile terminal and the conductive reinforcing plate 20 is electrically connected to the middle frame 30, the relative area between the user's finger and the metal ring 104 is equivalent to the relative area between the user's finger and the conductive reinforcing plate 20 and the middle frame 30. Since the areas of the conductive reinforcing plate 20 and the middle frame 30 are much larger than the areas of the fingers, the relative area between the fingers of the user and the conductive reinforcing plate 20 and the middle frame 30 is much larger than the relative area between the fingers of the user and the metal ring 104, and further the C can be further increasedbezelThe size of the fingerprint acquisition signal is further reduced, the backflow of the fingerprint acquisition signal is further shortened, and the interference of the common-mode interference signal on the fingerprint acquisition signal is further reduced.
Optionally, the metal ring 104 is electrically connected to the conductive reinforcing plate 20 through a conductive foam.
The conductive foam has the advantages of low surface resistivity, good wear resistance, wide applicable temperature range, wide applicable humidity range, good flame retardance and the like. Meanwhile, the conductive foam has the advantages of light weight, oxidation resistance, corrosion resistance and the like.
Specifically, the metal ring 104 may be coated with a conductive adhesive such as a conductive adhesive, the metal ring 104 is connected to the conductive foam via the conductive adhesive, and then the conductive reinforcing plate 20 is also coated with the conductive adhesive, and the conductive reinforcing plate 20 is connected to the conductive foam via the conductive adhesive, so that the metal ring 104 is electrically connected to the conductive reinforcing plate 20 via the conductive foam. Conductive foam can also be filled directly between the metal ring 104 and the conductive reinforcing plate 20. Of course, it is a prerequisite that the conductive foam is not connected to other conductive parts of the mobile terminal other than the metal ring 104 and the conductive reinforcing plate 20.
Optionally, the conductive foam includes any one or a combination of nickel-plated copper conductive foam, gold-plated conductive foam, carbon-plated conductive foam, tin-plated conductive foam, conductive aluminum foil foam, and conductive copper foil foam.
Optionally, the metal ring 104 is electrically connected to the conductive reinforcing plate 20 through a conductive sponge.
The conductive sponge may include a conductive sponge strip, a conductive sponge tube, a conductive sponge plate, and the like.
Optionally, the metal ring 104 and the conductive reinforcing plate 20 are connected by a conductive cloth.
The conductive cloth is made of fiber cloth (commonly used polyester fiber cloth) as a base material, and is subjected to pre-treatment and then is plated with metal plating to have metal characteristics. The conductive cloth has the advantages of light weight, easy cutting, oxidation resistance, corrosion resistance and the like.
Optionally, the conductive cloth includes any one or a combination of nickel-plated conductive cloth, gold-plated conductive cloth, carbon-plated conductive cloth, and aluminum foil fiber composite cloth.
Optionally, the metal ring 104 is electrically connected to the conductive reinforcing plate 20 through a wire.
The conducting wire may be made of copper, gold, silver, aluminum, or other material with low resistivity. The diameter of the wire may be set large so that the resistance of the wire is low.
Optionally, the metal ring 104 is electrically connected to the conductive reinforcing plate 20 through a conductive plate.
The conductive plate can be made of copper, gold, silver, aluminum and other materials with low resistivity. One end of the conductive plate may be welded to the metal ring 104, and the other end of the conductive plate may be welded to the conductive reinforcing plate 20.
Optionally, referring to fig. 4, fig. 4 is a schematic structural diagram of another fingerprint identification module disclosed in the embodiment of the present invention, and as shown in fig. 4, the fingerprint identification module 10 includes a fingerprint chip 101, a cover plate 102, a circuit board 103, and a metal ring 104, where:
the cover plate 102 is arranged on one side of the fingerprint chip 101;
the circuit board 103 is arranged on the other side of the fingerprint chip 101 away from the cover plate 102;
the metal ring 104 surrounds the cover plate 102, and the metal ring 104 is electrically connected with the conductive reinforcing plate 20 of the mobile terminal;
the fingerprint chip 101 includes a fingerprint sensor 1011, and the fingerprint sensor 1011 is used for transmitting a fingerprint collection signal, and the fingerprint collection signal is used for collecting a fingerprint image of a user.
In the embodiment of the present invention, the fingerprint identification module 10 of the mobile terminal may receive a fingerprint acquisition instruction input by a user. After receiving the fingerprint collection instruction, fingerprint sensor 1011 of fingerprint identification module 10 launches the fingerprint collection signal, and the fingerprint collection signal is used for gathering user's fingerprint image.
Wherein, fingerprint collection instruction is used for triggering mobile terminal and opens the fingerprint collection function, triggers mobile terminal's fingerprint identification module 10's fingerprint sensor 1011 transmission fingerprint collection signal.
Optionally, a difference between the frequency of the fingerprint acquisition signal and the frequency of the voltage signal output by the charger of the mobile terminal is greater than a preset threshold; the amplitude of the fingerprint acquisition signal and the amplitude of the voltage signal output by the charger are greater than a preset amplitude.
In the embodiment of the invention, the mobile terminal can transmit the fingerprint acquisition signal through the fingerprint identification module 10 on the mobile terminal, and the difference value between the frequency of the fingerprint acquisition signal and the frequency of the voltage signal output by the charger of the mobile terminal is greater than the preset threshold value, so that the mobile terminal can be prevented from being interfered by the voltage signal output by the charger in the charging state. The preset threshold may be preset and stored in a non-volatile memory of the mobile terminal.
Furthermore, the amplitude of the fingerprint acquisition signal and the amplitude of the voltage signal output by the charger are greater than a preset amplitude. The interference of the voltage signal output by the charger to the fingerprint acquisition signal can be prevented. The preset amplitude value may be preset and stored in a non-volatile memory of the mobile terminal.
Referring to fig. 5, fig. 5 is a flowchart illustrating a fingerprint acquisition method according to an embodiment of the present invention, and as shown in fig. 5, the fingerprint acquisition method includes the following steps.
S501, the mobile terminal receives a fingerprint acquisition instruction.
In the embodiment of the invention, the fingerprint acquisition instruction received by the mobile terminal can be input by a user voice or generated after the mobile terminal senses the fingerprint contact of the user. The fingerprint acquisition instruction is used for triggering the mobile terminal to start a fingerprint acquisition function and triggering the mobile terminal to transmit a fingerprint acquisition signal.
S502, the fingerprint identification module of the mobile terminal transmits a fingerprint acquisition signal, and the difference value of the frequency of the fingerprint acquisition signal and the frequency of a voltage signal output by a charger of the mobile terminal is greater than a preset threshold value; the amplitude of the fingerprint acquisition signal and the amplitude of the voltage signal output by the charger are greater than a preset amplitude; the fingerprint acquisition signal is used for acquiring user fingerprint image data.
In the embodiment of the invention, the mobile terminal can acquire the signal through the fingerprint of the fingerprint identification module on the mobile terminal, and the difference value between the frequency of the fingerprint acquisition signal and the frequency of the voltage signal output by the charger of the mobile terminal is greater than the preset threshold value, so that the mobile terminal can be prevented from being interfered by the voltage signal output by the charger in the charging state. The frequency of the voltage pulse signal output by the charger is typically a few hundred KHz. For example, when the frequency of the voltage pulse signal output by the charger is 500KHz, the frequency of the fingerprint identification module for transmitting the fingerprint acquisition signal can be set to be 1.5 MHz. The fingerprint acquisition signal is used for acquiring user fingerprint image data. The amplitude of the fingerprint acquisition signal and the amplitude of the voltage signal output by the charger are greater than the preset amplitude, so that the interference of the voltage signal output by the charger on the fingerprint acquisition signal can be further prevented, and the amplitude of the fingerprint acquisition signal can be set to be greater than the amplitude of the voltage signal output by the charger. For example, if the amplitude of the voltage signal output by the charger is 1.8V and the preset amplitude is 4V, the amplitude of the fingerprint acquisition signal may be set to 6V.
The method shown in fig. 5 is implemented, and the difference between the frequency of the fingerprint acquisition signal transmitted by the fingerprint identification module of the mobile terminal and the frequency of the voltage signal output by the charger of the mobile terminal is set to be greater than the preset threshold value, so that the frequencies of the fingerprint acquisition signal and the voltage signal output by the charger are staggered, and the interference of the voltage signal output by the charger on the fingerprint acquisition signal is reduced. The amplitude of the fingerprint acquisition signal and the amplitude of the voltage signal output by the charger are set to be larger than the preset amplitude, so that the difference between the amplitudes of the fingerprint acquisition signal and the voltage signal output by the charger is larger, and the interference of the voltage signal output by the charger on the fingerprint acquisition signal can be further reduced when the mobile terminal is charged.
The above description has introduced aspects of embodiments of the present invention primarily from the perspective of apparatus and method-side implementation. It is understood that the mobile terminal includes hardware structures and/or software modules for performing the respective functions in order to implement the functions of the method side. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The embodiment of the present invention may perform the division of the functional units for the mobile terminal according to the method example described above, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In case of an integrated unit, fig. 6 shows a possible structural diagram of the mobile terminal involved in the above embodiment. Fig. 6 is a schematic structural diagram of a mobile terminal according to the present disclosure, and as shown in fig. 6, the mobile terminal 600 includes: a processing unit 602 and a communication unit 603. Processing unit 602 is configured to control and manage actions of the mobile terminal, e.g., processing unit 602 is configured to enable the mobile terminal to perform steps S501-S502 in fig. 5 and/or other processes for the techniques described herein. The communication unit 603 is used to support communication between the mobile terminal and other devices, e.g. base stations in a mobile communication network. The mobile terminal may further include a storage unit 601 for storing program codes and data of the mobile terminal.
The processing Unit 602 may be a Processor or a controller, such as a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 603 may be a communication interface, a transceiver, a transceiving circuit, etc., wherein the communication interface is a generic term and may comprise one or more interfaces. The storage unit 601 may be a memory.
When the processing unit 602 is a processor, the communication unit 603 is a communication interface, and the storage unit 601 is a memory, the mobile terminal according to the embodiment of the present invention may be the mobile terminal shown in fig. 7.
Fig. 7 is a schematic structural diagram of another mobile terminal disclosed in the present application. Referring to fig. 7, as shown in fig. 7, the mobile terminal 710 includes: a processor 712, a communication interface 713, and a memory 711. Optionally, mobile terminal 710 may also include a bus 715. Wherein the communication interface 713, the processor 712, and the memory 711 may be connected to each other by a bus 715; the bus 715 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 715 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.
The mobile terminal shown in fig. 6 or fig. 7 may also be understood as an apparatus for a mobile terminal, and the embodiment of the present invention is not limited thereto.
An embodiment of the present invention further provides another mobile terminal, as shown in fig. 8, fig. 8 is a schematic structural diagram of another mobile terminal disclosed in the implementation of the present invention. For convenience of explanation, only the parts related to the embodiments of the present invention are shown, and details of the specific techniques are not disclosed. The mobile terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, and the like, taking the mobile terminal as the mobile phone as an example:
fig. 8 is a block diagram illustrating a partial structure of a mobile phone related to a mobile terminal according to an embodiment of the present invention. Referring to fig. 8, the handset includes: a Radio Frequency (RF) circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a Wireless Fidelity (WiFi) module 970, a processor 980, and a power supply 990. Those skilled in the art will appreciate that the handset configuration shown in fig. 8 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 8:
The memory 920 may be used to store software programs and modules, and the processor 980 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 920. The memory 920 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the mobile phone, and the like. Further, the memory 920 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 930 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 930 may include a fingerprint recognition module 931 and other input devices 932. Fingerprint identification module 931, can gather the fingerprint data of user above it. The input unit 930 may include other input devices 932 in addition to the fingerprint recognition module 931. In particular, other input devices 932 may include, but are not limited to, one or more of a touch screen, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 940 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 940 may include a display screen 941, and optionally, the display screen 941 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Although in fig. 8, the fingerprint recognition module 931 and the display screen 941 are shown as two separate components to implement the input and output functions of the mobile phone, in some embodiments, the fingerprint recognition module 931 and the display screen 941 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 950, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen 941 according to the brightness of ambient light, and the proximity sensor may turn off the display screen 941 and/or the backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 970, and provides wireless broadband Internet access for the user. Although fig. 8 shows the WiFi module 970, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 980 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 920 and calling data stored in the memory 920, thereby integrally monitoring the mobile phone. Alternatively, processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 980.
The handset also includes a power supply 990 (e.g., a battery) for supplying power to the various components, which may preferably be logically connected to the processor 980 via a power management system, thereby providing management of charging, discharging, and power consumption via the power management system.
Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
In the embodiment shown in fig. 5, the method flow of each step may be implemented based on the structure of the mobile phone.
In the embodiment shown in fig. 6, the functions of the units can be implemented based on the structure of the mobile phone.
An embodiment of the present invention further provides a computer storage medium, where the computer storage medium may store a program, and when the program is executed, the program includes some or all of the steps of any one of the fingerprint acquisition methods described in the above method embodiments.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a fingerprint identification module, is applied to mobile terminal, its characterized in that, the fingerprint identification module includes fingerprint chip, apron, circuit board and metal loop, wherein:
the cover plate is arranged on one side of the fingerprint chip;
the circuit board is arranged on the other side, far away from the cover plate, of the fingerprint chip;
the metal ring surrounds the cover plate, the metal ring is electrically connected with a conductive reinforcing plate of the mobile terminal, the conductive reinforcing plate is electrically connected with a middle frame of the mobile terminal through conductive cloth, the conductive cloth is formed by taking fiber cloth as a base material and applying an electroplated metal coating after pre-treatment to enable the conductive cloth to have metal characteristics.
2. The fingerprint identification module of claim 1, wherein the metal ring and the conductive stiffener are electrically connected through a conductive foam.
3. The fingerprint identification module of claim 2, wherein the conductive foam comprises any one or more of nickel-plated copper conductive foam, gold-plated conductive foam, carbon-plated conductive foam, tin-plated conductive foam, conductive aluminum foil foam, and conductive copper foil foam.
4. The fingerprint identification module of claim 1, wherein the metal ring and the conductive reinforcing plate are connected by a conductive cloth.
5. The fingerprint identification module of claim 4, wherein the conductive cloth comprises any one or more of nickel-plated conductive cloth, gold-plated conductive cloth, carbon-plated conductive cloth, and aluminum foil fiber composite cloth.
6. The fingerprint identification module of claim 1, wherein the metal ring and the conductive stiffener are electrically connected by a wire.
7. The fingerprint identification module of claim 1, wherein the metal ring and the conductive stiffener are electrically connected through a conductive plate.
8. The fingerprint identification module of any one of claims 1-7, wherein the fingerprint chip comprises a fingerprint sensor, the fingerprint sensor is configured to transmit a fingerprint collection signal, and the fingerprint collection signal is configured to collect a fingerprint image of a user.
9. The fingerprint identification module of claim 8, wherein a difference between a frequency of the fingerprint acquisition signal and a frequency of a voltage signal output by a charger of the mobile terminal is greater than a preset threshold; the difference value between the amplitude of the fingerprint acquisition signal and the amplitude of the voltage signal output by the charger is larger than a preset amplitude.
10. A mobile terminal, comprising the fingerprint identification module of any one of claims 1 to 9, and a processor, a memory, and a communication interface,
the processor is connected with the memory and the communication interface;
the memory stores executable program code, and the communication interface is for wireless communication.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047046.2A CN106845409B (en) | 2017-01-22 | 2017-01-22 | Fingerprint identification module and mobile terminal |
| PCT/CN2018/070052 WO2018133665A1 (en) | 2017-01-22 | 2018-01-02 | Fingerprint recognition module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710047046.2A CN106845409B (en) | 2017-01-22 | 2017-01-22 | Fingerprint identification module and mobile terminal |
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| CN106845409A CN106845409A (en) | 2017-06-13 |
| CN106845409B true CN106845409B (en) | 2020-03-06 |
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| WO (1) | WO2018133665A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106845409B (en) * | 2017-01-22 | 2020-03-06 | Oppo广东移动通信有限公司 | Fingerprint identification module and mobile terminal |
| CN107787175B (en) * | 2017-10-19 | 2019-08-20 | 维沃移动通信有限公司 | A kind of mobile terminal |
| WO2020000155A1 (en) * | 2018-06-25 | 2020-01-02 | 华为技术有限公司 | Fingerprint collecting method and electronic device |
| CN113972487B (en) * | 2021-10-22 | 2023-12-26 | 歌尔科技有限公司 | Antenna and electronic equipment |
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| CN103092408A (en) * | 2012-10-19 | 2013-05-08 | 友达光电股份有限公司 | Embedded touch display panel and driving method thereof |
| CN105825165A (en) * | 2015-11-20 | 2016-08-03 | 维沃移动通信有限公司 | Fingerprint identification module, terminal device and assembling method |
| CN106096374A (en) * | 2016-07-21 | 2016-11-09 | 珠海市魅族科技有限公司 | The control method of electronic equipment and associated electronic device |
| CN106250872A (en) * | 2016-08-16 | 2016-12-21 | 深圳天珑无线科技有限公司 | A kind of fingerprint module and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9898644B2 (en) * | 2014-11-20 | 2018-02-20 | Chih-Chung Lin | Touch panel with fingerprint identification function |
| CN205644576U (en) * | 2016-03-29 | 2016-10-12 | 深圳市德沃尔实业有限公司 | Take fingerprint identification module of button function |
| CN106845409B (en) * | 2017-01-22 | 2020-03-06 | Oppo广东移动通信有限公司 | Fingerprint identification module and mobile terminal |
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2017
- 2017-01-22 CN CN201710047046.2A patent/CN106845409B/en active Active
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- 2018-01-02 WO PCT/CN2018/070052 patent/WO2018133665A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103092408A (en) * | 2012-10-19 | 2013-05-08 | 友达光电股份有限公司 | Embedded touch display panel and driving method thereof |
| CN105825165A (en) * | 2015-11-20 | 2016-08-03 | 维沃移动通信有限公司 | Fingerprint identification module, terminal device and assembling method |
| CN106096374A (en) * | 2016-07-21 | 2016-11-09 | 珠海市魅族科技有限公司 | The control method of electronic equipment and associated electronic device |
| CN106250872A (en) * | 2016-08-16 | 2016-12-21 | 深圳天珑无线科技有限公司 | A kind of fingerprint module and electronic equipment |
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| CN106845409A (en) | 2017-06-13 |
| WO2018133665A1 (en) | 2018-07-26 |
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