CN108319885A - Fingerprint identification method and device - Google Patents

Fingerprint identification method and device Download PDF

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Publication number
CN108319885A
CN108319885A CN201710032066.2A CN201710032066A CN108319885A CN 108319885 A CN108319885 A CN 108319885A CN 201710032066 A CN201710032066 A CN 201710032066A CN 108319885 A CN108319885 A CN 108319885A
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China
Prior art keywords
electrode
display screen
touch operation
touch
determining
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CN201710032066.2A
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CN108319885B (en
Inventor
杨坤
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN201710032066.2A priority Critical patent/CN108319885B/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • User Interface Of Digital Computer (AREA)
  • Image Input (AREA)

Abstract

The disclosure is directed to a kind of fingerprint identification method and devices, belong to field of terminal technology.This method includes：When detecting the touch operation for carrying out fingerprint recognition on a display screen, the actuating pressure and touch location of the touch operation on the display screen are determined；When the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is located at default identification region, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition.The embodiment of the present disclosure is when determining that the actuating pressure of the touch operation on a display screen is greater than or equal to preset pressure threshold value and touch location is positioned at default identification region, it can determine the corresponding fingerprint image of the touch operation and carry out fingerprint recognition, it that is to say when the parameter of touch operation meets some requirements, fingerprint recognition is carried out again, the accuracy rate of fingerprint recognition can be improved, and without repeatedly determining the corresponding fingerprint image of the touch operation, to reduce the power consumption of terminal.

Description

Fingerprint identification method and device
Technical field
This disclosure relates to field of terminal technology more particularly to a kind of fingerprint identification method and device.
Background technology
With the fast development of terminal technology, terminal can provide information protection to the user by fingerprint identification function, with Ensure the information security of user.User can the fingerprint of typing oneself in the terminal in advance, later when terminal recognition go out it is identical When fingerprint, it can just execute and operate in next step, and when the fingerprint that terminal recognition goes out and the fingerprint difference of the user, it is believed that it should The information of user has the possibility being stolen, and is operated in next step to which terminal will not continue to execute, and then ensure that the letter of the user Breath safety.
The manufacturer of usual terminal can configure a groove below terminal display screen or below rear camera, when with When family needs the fingerprint identification function of using terminal, finger can be pressed in the groove, to detect effect when terminal When the touch operation of the groove, can to the groove press finger be imaged, and by obtained fingerprint image with The fingerprint image of storage is compared, and then executes corresponding operation according to comparing result.
Invention content
To overcome the problems in correlation technique, a kind of fingerprint identification method of disclosure offer and device.
According to the first aspect of the embodiments of the present disclosure, a kind of fingerprint identification method is provided, the method includes：
When detecting the touch operation for carrying out fingerprint recognition on a display screen, determine the touch operation described Actuating pressure on display screen and touch location；
When the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is located at default identification region, It determines the corresponding fingerprint image of the touch operation and carries out fingerprint recognition.
Optionally, described when the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is positioned at default When identification region, before determining the corresponding fingerprint image of the touch operation and carrying out fingerprint recognition, further include：
Determine the effect duration of the touch operation on the display screen；
Correspondingly, described when the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is positioned at default When identification region, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition, including：
When the actuating pressure is greater than or equal to preset pressure threshold value, the touch location is located at default identification region and institute When stating effect duration more than preset duration, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition.
Optionally, the actuating pressure of the determination touch operation on the display screen, including：
The actuating pressure of the touch operation on the display screen is determined by the pressure sensor of the display screen；Or Person,
The effect pressure of the touch operation on the display screen is determined based on the capacitance of the public electrode of the display screen Power.
Optionally, the touch location of the determination touch operation on the display screen, including：
For each crossed electrode in multiple crossed electrodes on the display screen, detects the touch operation and act on The capacitance of crossed electrode when on the display screen；
Determine the capacitance of the crossed electrode and the crossed electrode when touch operation acts on the display screen Reference capacitance between difference, obtain the capacitive differential of the crossed electrode；
When being more than predetermined capacitive there are the capacitive differential of at least one crossed electrode in the multiple crossed electrode, determine The position of at least one crossed electrode on the display screen；
It is described by the position area defined location determination of at least one crossed electrode on the display screen The touch location of touch operation.
Optionally, the touch location of the determination touch operation on the display screen, including：
Determine that the touch operation acts on the electric current that first electrode generates when on the display screen, second electrode generates The electric current that the electric current and the 4th electrode that electric current, third electrode generate generate, the first electrode, the second electrode, described the Three electrodes and the 4th electrode are the first predeterminated position of terminal where being separately positioned on the display screen, the second default position It sets, the electrode of third predeterminated position and the 4th predetermined position；
Based on the first electrode, the second electrode, the third electrode and arbitrary three positions of the 4th electrode Electric current caused by adjacent electrode determines the touch location of the touch operation on the display screen.
Optionally, described when the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is positioned at default When identification region, before determining the corresponding fingerprint image of the touch operation and carrying out fingerprint recognition, further include：
When the central point of the touch location is located in the default identification region, determine that the touch location is located at institute State default identification region；Alternatively,
When the distance between central point of central point and the default identification region of the touch location be less than it is default away from From when, determine that the touch location is located at the default identification region.
Optionally, the method further includes：
When carrying out fingerprint recognition and determining recognition result, prompting mode is determined, and by the prompting mode to institute Recognition result is stated to be prompted；
Or
It determines the corresponding fingerprint image of the touch operation and carries out determining prompting mode while fingerprint recognition, work as progress Fingerprint recognition and when determining recognition result, prompts the recognition result by the prompting mode.
According to the second aspect of the embodiment of the present disclosure, a kind of fingerprint identification device is provided, described device includes：
First determining module, for when detecting the touch operation for carrying out fingerprint recognition on a display screen, determining The actuating pressure and touch location of the touch operation on the display screen；
Second determining module, for being greater than or equal to preset pressure threshold value and the touch location position when the actuating pressure When default identification region, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition.
Optionally, described device further includes：
Third determining module, for determining the effect duration of the touch operation on the display screen；
Correspondingly, second determining module includes：
First determination sub-module, for being greater than or equal to preset pressure threshold value, the touch location when the actuating pressure When being more than preset duration positioned at default identification region and the effect duration, the corresponding fingerprint image of the touch operation is determined simultaneously Carry out fingerprint recognition.
Optionally, first determining module includes：
Second determination sub-module, for determining the touch operation described aobvious by the pressure sensor of the display screen Actuating pressure in display screen；Alternatively,
Third determination sub-module, the capacitance for the public electrode based on the display screen determine the touch operation in institute State the actuating pressure on display screen.
Optionally, first determining module includes：
Detection sub-module, for for each crossed electrode in multiple crossed electrodes on the display screen, detecting institute State the capacitance of crossed electrode when touch operation acts on the display screen；
4th determination sub-module, crossed electrode when for determining that the touch operation acts on the display screen Difference between capacitance and the reference capacitance of the crossed electrode obtains the capacitive differential of the crossed electrode；
5th determination sub-module, for when there are the capacitive differentials of at least one crossed electrode in the multiple crossed electrode When more than predetermined capacitive, the position of at least one crossed electrode on the display screen is determined；
6th determination sub-module, for surrounded the position of at least one crossed electrode on the display screen Regional location is determined as the touch location of the touch operation.
Optionally, first determining module includes：
7th determination sub-module, first electrode generates when for determining that the touch operation acts on the display screen The electric current that the electric current and the 4th electrode for the electric current, the generation of third electrode that electric current, second electrode generate generate, the first electrode, The second electrode, the third electrode and the 4th electrode are the first pre- of terminal where being separately positioned on the display screen If the electrode of position, the second predeterminated position, third predeterminated position and the 4th predetermined position；
8th determination sub-module, for based on the first electrode, the second electrode, the third electrode and described the Electric current determines the touch of the touch operation on the display screen caused by the adjacent electrode in arbitrary three positions of four electrodes Position.
Optionally, described device further includes：
4th determining module, for when the central point of the touch location is located in the default identification region, determining The touch location is located at the default identification region；Alternatively,
5th determining module, for when between the central point and the central point of the default identification region of the touch location Distance be less than pre-determined distance when, determine that the touch location is located at the default identification region.
Optionally, described device further includes：
First reminding module, for when carrying out fingerprint recognition and determining recognition result, determining prompting mode, and pass through The prompting mode prompts the recognition result；
Or
Second reminding module, for determining the corresponding fingerprint image of the touch operation and carry out fingerprint recognition while is true Determine prompting mode, when carrying out fingerprint recognition and when determining recognition result, by the prompting mode to the recognition result into Row prompt.
According to the third aspect of the embodiment of the present disclosure, a kind of fingerprint identification device is provided, described device includes：
Processor；
Memory for storing processor-executable instruction；
Wherein, the processor is configured as：
When detecting the touch operation for carrying out fingerprint recognition on a display screen, determine the touch operation described Actuating pressure on display screen and touch location；
When the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is located at default identification region, It determines the corresponding fingerprint image of the touch operation and carries out fingerprint recognition.
The technical scheme provided by this disclosed embodiment can include the following benefits：In the embodiments of the present disclosure, when When detecting the touch operation for carrying out fingerprint recognition on a display screen, it may be determined that the work of the touch operation on a display screen With pressure and touch location, later when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default cog region When domain, it may be determined that the corresponding fingerprint image of the touch operation simultaneously carries out fingerprint recognition, that is to say the touch operation ginseng as user When number meets some requirements, then fingerprint recognition is carried out, the accuracy rate of fingerprint recognition can be improved, and without repeatedly determining that this is touched The corresponding fingerprint image of operation is touched, to reduce the power consumption of terminal.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not The disclosure can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the present invention Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of flow chart of fingerprint identification method shown according to an exemplary embodiment.
Fig. 2A is the flow chart of another fingerprint identification method shown according to an exemplary embodiment.
Fig. 2 B are the schematic diagrames according to multiple crossed electrode distributions on the display screen shown in an exemplary embodiment.
Fig. 2 C are the schematic diagrames according to the determination touch position coordinates shown in an exemplary embodiment.
Fig. 3 A are a kind of block diagrams of fingerprint identification device shown according to an exemplary embodiment.
Fig. 3 B are the block diagrams of another fingerprint identification device shown according to an exemplary embodiment.
Fig. 3 C are a kind of block diagrams of first determining module shown according to an exemplary embodiment.
Fig. 3 D are the block diagrams according to the first determining module of another kind shown in an exemplary embodiment.
Fig. 3 E are the block diagrams according to the third the first determining module shown in an exemplary embodiment.
Fig. 3 F are the block diagrams according to the third fingerprint identification device shown in an exemplary embodiment.
Fig. 3 G are the block diagrams according to the 4th kind of fingerprint identification device shown in an exemplary embodiment.
Fig. 4 is a kind of block diagram of fingerprint identification device shown according to an exemplary embodiment.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended The example of the consistent device and method of some aspects being described in detail in claims, of the invention.
Before carrying out detailed explanation to the embodiment of the present disclosure, first the application scenarios of the embodiment of the present disclosure are given It introduces.When user needs to carry out fingerprint recognition by terminal, it will usually by finger pressing in the recessed of terminal fingerprint for identification At slot, later terminal can acquire finger pressing generate touch operation corresponding to fingerprint image, and then and storage fingerprint Image is compared, and to carry out fingerprint recognition, and during terminal carries out fingerprint recognition, the finger of user acts on display The dynamics of screen is too small and touch location of user's finger is not at the factors such as region of the terminal for fingerprint recognition can lead Cause terminal that can not effectively be acquired to fingerprint image, to reduce the accuracy rate of fingerprint recognition, meanwhile, terminal needs multiple Fingerprint image is acquired, and needs to carry out multiple fingerprint image comparison, to increase the power consumption of terminal.Therefore, this public affairs It opens embodiment and provides a kind of fingerprint identification method, when user carries out fingerprint recognition by terminal, fingerprint recognition can be improved Accuracy rate, while the power consumption of terminal can also be reduced.
Fig. 1 is a kind of flow chart of fingerprint identification method shown according to an exemplary embodiment.As shown in Figure 1, this refers to Line recognition methods is used in terminal, is included the following steps.
In a step 101, when detecting the touch operation for carrying out fingerprint recognition on a display screen, the touch is determined The actuating pressure and touch location of operation on a display screen.
In a step 102, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default cog region When domain, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition.
It in the embodiments of the present disclosure, can be with when detecting the touch operation for carrying out fingerprint recognition on a display screen The actuating pressure and touch location of the touch operation on a display screen are determined, later when actuating pressure is greater than or equal to preset pressure When threshold value and touch location are located at default identification region, it may be determined that the corresponding fingerprint image of the touch operation simultaneously carries out fingerprint knowledge Not, it that is to say when the touch operation parameter of user meets some requirements, then carry out fingerprint recognition, fingerprint recognition can be improved Accuracy rate, and without repeatedly determining the touch operation corresponding fingerprint image, to reduce the power consumption of terminal.
Optionally, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, Before determining the corresponding fingerprint image of touch operation and carrying out fingerprint recognition, further include：
Determine the effect duration of touch operation on a display screen；
Correspondingly, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, It determines the corresponding fingerprint image of touch operation and carries out fingerprint recognition, including：
It grows up when actuating pressure is greater than or equal to preset pressure threshold value, touch location is located at default identification region and acts on When preset duration, determines the corresponding fingerprint image of touch operation and carry out fingerprint recognition.
Optionally it is determined that the actuating pressure of touch operation on a display screen, including：
The actuating pressure of touch operation on a display screen is determined by the pressure sensor of display screen；Alternatively,
The actuating pressure of touch operation on a display screen is determined based on the capacitance of the public electrode of display screen.
Optionally it is determined that the touch location of touch operation on a display screen, including：
For each crossed electrode in multiple crossed electrodes on display screen, detection touch operation acts on display screen When crossed electrode capacitance；
It determines when touch operation acts on display screen between the capacitance of crossed electrode and the reference capacitance of crossed electrode Difference obtains the capacitive differential of crossed electrode；
When being more than predetermined capacitive there are the capacitive differential of at least one crossed electrode in multiple crossed electrodes, determine at least The position of one crossed electrode on a display screen；
It is touching for touch operation by the position area defined location determination of at least one crossed electrode on a display screen Touch position.
Optionally it is determined that the touch location of touch operation on a display screen, including：
Determine electric current that electric current, second electrode that first electrode when touch operation acts on display screen generates generate, the The electric current that the electric current and the 4th electrode that three electrodes generate generate, first electrode, second electrode, third electrode and the 4th electrode are point The first predeterminated position, the second predeterminated position, third predeterminated position and the 4th predeterminated position of the terminal where display screen are not set The electrode at place；
Produced by first electrode, second electrode, the adjacent electrode of third electrode and arbitrary three positions of the 4th electrode Electric current determine the touch location of touch operation on a display screen.
Optionally, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, Before determining the corresponding fingerprint image of touch operation and carrying out fingerprint recognition, further include：
When the central point of touch location is located in default identification region, determine that touch location is located at default identification region； Alternatively,
When the distance between the central point of touch location and the central point of default identification region are less than pre-determined distance, determine Touch location is located at default identification region.
Optionally, this method further includes：
When carrying out fingerprint recognition and determining recognition result, prompting mode is determined, and tied to identification by prompting mode Fruit is prompted；
Or
It determines the corresponding fingerprint image of touch operation and carries out determining prompting mode while fingerprint recognition, when progress fingerprint When identifying and determining recognition result, recognition result is prompted by prompting mode.
Above-mentioned all optional technical solutions, can form the alternative embodiment of the disclosure according to any combination, and the disclosure is real Example is applied no longer to repeat this one by one.
Fig. 2A is a kind of flow chart of fingerprint identification method shown according to an exemplary embodiment.As shown in Figure 2 A, should Fingerprint identification method is used in terminal, is included the following steps.
In step 201, when detecting the touch operation for carrying out fingerprint recognition on a display screen, the touch is determined The actuating pressure of operation on a display screen.
It wherein, can be by following when terminal detects the touch operation for carrying out fingerprint recognition on a display screen Two ways determines the actuating pressure of touch operation on a display screen, including：
First way：The actuating pressure of touch operation on a display screen is determined by the pressure sensor of display screen.
Due to terminal generally use capacitance plate, and capacitance plate may include GFF (Cover Glass Film Film, bilayer It is film adhered), Oncell (touch screen insertion), Incell (touch LCD integration) and Amoled (Active matrix/ Organic light emitting diode, active matrix organic LED panel) etc. various structures, therefore terminal The pressure sensor can be built in the display structure of capacitance plate or touched in structure by manufacturer, such as can be in LCD Pressure is set in the backing structure at (Liquid Crystal Display, liquid crystal display) back side, the back sides Amoled or LCD Sensor.It is passed in addition, the pressure sensor can be FPC (Flexible Printed Circuit, flexible PCB) pressure Sensor etc..
The second way：The effect pressure of touch operation on a display screen is determined based on the capacitance of the public electrode of display screen Power.
It is commonly configured with public electrode in the display screen of terminal, it, can be with when user is with different force touch display screens Change the spacing between two pole plates of public electrode, to change the capacitance of public electrode, therefore, terminal can be according to display The capacitance of the public electrode of screen determines the actuating pressure of touch operation on a display screen.
Wherein, terminal can determine the capacitance of the public electrode of display screen first, and determined and touched based on following formula (2-1) Touch the actuating pressure of operation on a display screen.
Wherein, in above-mentioned formula, F is the actuating pressure of touch operation on a display screen, and A is the stiffness system of display screen Number, d are spacing of two capacitor boards of display screen when not being under pressure, dielectrics of the ε between two capacitor boards of display screen Dielectric constant, facing areas of the S between two capacitor boards of display screen, π is pi, and k is electrostatic force constant, and C is display Shield the capacitance between two capacitor boards.
In above-mentioned formula, A, d, ε, S, π, k are constant, therefore two that terminal can be based on display screen public electrode Capacitance C between capacitor board determines the actuating pressure F of touch operation on a display screen by above-mentioned formula.
It should be noted that terminal determines the work of touch operation on a display screen based on the capacitance of the public electrode of display screen It is not limited only to above-mentioned formula with the formula of pressure, can also be that voltage, capacitance etc. are added in above-mentioned formula in practical applications The formula obtained after multiple correction terms.In addition, above-mentioned second of realization method can pass through Vcom (the Voltage of of display screen Commom electrode, public electrode voltages) layer realization.
Further, terminal can also determine the actuating pressure of touch operation on a display screen by following manner, including： Repeated detection at the appointed time is carried out to the actuating pressure of the touch operation on display screen in section, obtains multiple actuating pressures, it should Designated time period is current time later and apart from the period of current time preset duration；It will be detected in multiple actuating pressure The actuating pressure of time the latest is determined as the actuating pressure of touch operation on a display screen.Since there are one for the generation of touch operation A process, therefore terminal determines the actuating pressure of touch operation on a display screen by way of above-mentioned be periodically detected, can be with Improve the accuracy rate for determining actuating pressure.
In step 202, the touch location of touch operation on a display screen is determined.
Terminal can realize this step by following two kinds of realization methods, including：
First way：For each crossed electrode in multiple crossed electrodes on display screen, detection touch operation is made The capacitance of crossed electrode when on display screen；Determine when touch operation acts on display screen the capacitance of the crossed electrode with Difference between the reference capacitance of the crossed electrode obtains the capacitive differential of the crossed electrode；Exist when in multiple crossed electrodes When the capacitive differential of at least one crossed electrode is more than predetermined capacitive, the position of at least one crossed electrode on a display screen is determined It sets；By the touch position that the position area defined location determination of at least one crossed electrode on a display screen is touch operation It sets.
As shown in Figure 2 B, multiple crossed electrodes can be set on the display screen of terminal, when terminal detects on a display screen When touch operation, the capacitance of the crossed electrode at touch location is located in multiple crossed electrode to change, to capacitance The capacitance of changed crossed electrode can be more than the reference capacitance of the crossed electrode, and capacitive differential that ought be between the two is more than When predetermined capacitive, it is believed that be effective touch operation, to which terminal can determine that capacitive differential is more than the friendship of predetermined capacitive The position of interdigitated electrode, and then be tactile by the position area defined location determination of at least one crossed electrode on a display screen The touch location of operation is touched, the wherein reference capacitance of the crossed electrode is the capacitance when crossed electrode is not touched.
The second way：Include the following steps (1) and step (2).
Step (1)：Determine electric current, the second electrode generation that first electrode generates when touch operation acts on display screen The electric current that the electric current and the 4th electrode that electric current, third electrode generate generate, first electrode, second electrode, third electrode and the 4th Electrode is the first predeterminated position, the second predeterminated position, the third predeterminated position and the 4th of terminal where being separately positioned on display screen The electrode of predetermined position.
In practical applications, usually first can be respectively set in the upper left corner of terminal, the upper right corner, the lower right corner, the lower left corner Electrode, second electrode, third electrode and the 4th electrode, and charge is supplemented by four electrodes.
Step (2)：It is adjacent based on arbitrary three positions in first electrode, second electrode, third electrode and the 4th electrode Electric current caused by electrode determines the touch location of touch operation on a display screen.
Wherein, terminal can be based on arbitrary neighborhood in first electrode, second electrode, third electrode and the 4th electrode three Electric current caused by electrode is determined by following formula (2-2) and touches abscissa, and determined and touched by following formula (2-3) Touch ordinate, and will touch abscissa and touch the location determination indicated by ordinate is the touch operation touching on a display screen Touch position.
Wherein, in above-mentioned formula, LbxTo touch abscissa, ibIt is centrally located in three electrodes of arbitrary neighborhood Electrode generate electric current, LxFor the top margin length or bottom side length of display screen, iaFor in three electrodes of arbitrary neighborhood and positioned at centre The electric current that the identical electrode of abscissa of the electrode of position generates, LbyTo touch ordinate, LyThe left side for display screen is long or right The length of side, icFor the electricity that electrode identical with the ordinate of centrally located electrode generates in three electrodes of arbitrary neighborhood Stream.Wherein, for the terminal of outfit fingerprint identification module, due to the top margin length or bottom side length and display screen of the terminal display screen Had determined when the left side is long or the right length manufacture, therefore when the terminal executes this method, the top margin of display screen it is long or Bottom side length LxAnd the left side length or the long L in the right of display screenyIt is known quantity.
As shown in Figure 2 C, three electrodes of arbitrary neighborhood can be respectively the first electrode for being located at the display screen upper left corner, position Second electrode in the display screen upper right corner and the third electrode positioned at the display screen lower right corner, wherein second electrode is three electrodes In centrally located electrode, and the electric current that second electrode generates is ib, first electrode is the abscissa phase with second electrode Same electrode, and the electric current that first electrode generates is ia, third electrode is electrode identical with the ordinate of second electrode, and the The electric current that three electrodes generate is ic, wherein the distance between first electrode and second electrode are top margin length or the bottom edge of display screen Long Lx, the distance between second electrode and third electrode are the left side length or the long L in the right of display screeny。
It should be noted that when detecting the touch operation for carrying out fingerprint recognition on a display screen, terminal can be with It first determines the actuating pressure of the touch operation on a display screen, then determines the touch location of the touch operation on a display screen, when So, terminal can also first determine the touch location of the touch operation on a display screen, then determine the touch operation on a display screen Actuating pressure, the embodiment of the present disclosure determines terminal the sequence of the actuating pressure and touch location of touch operation on a display screen It is not construed as limiting.
So far, terminal 201 can determine to step 202 and exist for carrying out the touch operation of fingerprint recognition through the above steps Actuating pressure on display screen and touch location, later terminal can determine the corresponding fingerprint image of touch operation by step 203 Picture simultaneously carries out fingerprint recognition.
In step 203, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default cog region When domain, determines the corresponding fingerprint image of touch operation and carry out fingerprint recognition.
Terminal first determines whether actuating pressure is greater than or equal to preset pressure threshold value and whether touch location is located in advance If identification region, when actuating pressure is less than preset pressure threshold value or touch location is not at default identification region, terminal , when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, it can be led to end operation The corresponding fingerprint image of fingerprint capturer acquisition touch operation is crossed, and the fingerprint image of acquisition and the fingerprint image of storage are carried out Comparison, when the fingerprint image of acquisition is consistent with the fingerprint image of storage, determines fingerprint recognition success to carry out fingerprint recognition, When the fingerprint image of the fingerprint image of acquisition and storage is inconsistent, fingerprint recognition success is determined.
It should be noted that the default identification region is the region that terminal carries out fingerprint image acquisition, the default cog region Domain can be entire display screen area, certainly, in practical applications, in order to reduce power consumption when terminal being made to acquire fingerprint image, and Without being scanned to entire display screen, which can also be aobvious corresponding to the fingerprint capturer of terminal installation Region in display screen that is to say that the default identification region is the subregion on display screen.
When actuating pressure be greater than or equal to preset pressure threshold value when, it is believed that user using certain dynamics to show into It has gone pressing, rather than has touched display screen, and the contact area of finger and display screen is sufficiently large, default known when touch location is located at When other region, it is believed that terminal can effectively acquire the fingerprint image of user, and terminal can determine touch behaviour later Make corresponding fingerprint image and carry out fingerprint recognition, so as to greatly improve the accuracy rate of fingerprint recognition.And work as actuating pressure When being not at default identification region less than preset pressure threshold value or touch location, it is believed that user only carries out screen It touches, or the fingerprint image of user can not effectively be acquired, at this time terminal can not need to determine touch with end operation Corresponding fingerprint image is operated, and then without fingerprint recognition is carried out, so as to reduce the power consumption of terminal.
Wherein, terminal can determine whether touch location is located at default identification region by following two ways, including：
First way：Judge whether the central point of touch location is located in default identification region, when in touch location When heart point is located in default identification region, determine that touch location is located at default identification region, when the central point of touch location does not have When in default identification region, determine that touch location is not at default identification region.
When the central point of touch location is located in default identification region, it is believed that user presses the overwhelming majority of finger It is pressed in the default identification region of display screen, when the corresponding fingerprint image of terminal-pair touch operation later is identified, Ke Yi great It is big to improve the accuracy rate of identification, and the number of scanning fingerprint can be reduced, to reduce power consumption of terminal.
The second way：The central point of touch location and the distance between the central point of default identification region are determined, when tactile When touching the distance between the central point of position and the central point of default identification region less than pre-determined distance, determine that touch location is located at Default identification region, when the distance between central point and the central point of default identification region of touch location be greater than or equal to it is default Apart from when, determine that touch location is not at default identification region.
When the distance between the central point of touch location and the central point of default identification region are less than pre-determined distance, equally It is considered that user presses the overwhelming majority of finger in the default identification region of display screen, terminal-pair touch operation pair later When the fingerprint image answered is identified, the accuracy rate of identification can be greatly improved, and the number of scanning fingerprint can be reduced, to Reduce the power consumption of terminal.
Further, terminal is determining the actuating pressure of touch operation on a display screen by way of being periodically detected On the basis of, following step can also be performed, including：When actuating pressure is greater than or equal to preset pressure threshold value, touch location is located at Default identification region and the factor of touch operation are when presetting factor, to determine the corresponding fingerprint image of touch operation and carry out Fingerprint recognition.
Since in practical applications, the factor of touch operation can be mainly divided into user's touch display screen and article touches Display screen both factors are touched, and wherein only have the factor of user's touch display screen that terminal can be made to collect fingerprint, therefore eventually This factor of user's touch display screen can be determined as default factor by end in advance.In addition, since both factors generate respectively The variation tendency of actuating pressure of touch operation will be different, therefore terminal is in the base for the actuating pressure for determining touch operation On plinth, it can also further determine which kind of factor touch operation belongs to according to the variation tendency of the actuating pressure of touch operation, from And when actuating pressure is greater than or equal to preset pressure threshold value, touch location is located at default identification region and the generation of touch operation because When element is presets factor, terminal can determine the corresponding fingerprint image of touch operation and carry out fingerprint recognition.
Correspondingly, when actuating pressure is greater than or equal to preset pressure threshold value, touch location is located at default identification region and touches When the factor for touching operation is default factor, before determining the corresponding fingerprint image of touch operation and carrying out fingerprint recognition, eventually End can be on the basis of determining the actuating pressure of touch operation on a display screen, by following by way of being periodically detected Step determines whether the factor of touch operation is default factor, including：It will be detected in designated time period according to detection time To multiple actuating pressures be ranked up；When multiple actuating pressure after sequence is sequentially increased, the touch operation is determined Factor is default factor.When multiple actuating pressure after sequence is not sequentially increased, the production of the touch operation is determined Raw factor is not default factor.
When user uses finger touch display screen, since there are a touch processes, and during touch, finger Dynamics can gradually increase, and correspondingly, actuating pressure can also have the process changed from small to big, therefore terminal can execute above-mentioned step Suddenly, so that it is determined that whether the factor of touch operation is default factor, when being greater than or equal to preset pressure threshold in actuating pressure When value, touch location determine that the factor of touch operation is default factor on the basis of default identification region, Ke Yijin One step improves the accuracy rate of fingerprint recognition.
In addition, since terminal can be on the basis for determining the actuating pressure and touch location of touch operation on a display screen On, further determine that the effect duration of touch operation on a display screen, therefore, following step can also be performed in terminal, including：When Actuating pressure is greater than or equal to preset pressure threshold value, touch location is located at default identification region and effect duration is more than preset duration When, it determines the corresponding fingerprint image of touch operation and carries out fingerprint recognition.
Due to during being acquired to fingerprint image, the action time of touch operation is longer to that is to say user's Finger remains stationary as possible, can be such that collected fingerprint image is more clear, therefore when terminal is determining that actuating pressure is more than Or on the basis of equal to preset pressure threshold value and touch location being located at default identification region, also determine touch operation on a display screen Effect duration be more than preset duration when, can further increase and the corresponding fingerprint image of touch operation is acquired and is identified Accuracy rate.
Further, before terminal executes step 203, the effect pressure of touch operation on a display screen can also be being determined On the basis of power and touch location, the effect duration of touch operation on a display screen is further determined that, terminal may determine that later Whether actuating pressure, touch location and the effect duration of touch operation on a display screen meet some requirements, to when touch When actuating pressure, touch location and the effect duration of operation on a display screen are satisfied by certain condition, then determine touch operation Corresponding fingerprint image simultaneously carries out fingerprint recognition.Due to judging touch operation actuating pressure on a display screen when terminal, touching Position and effect duration are touched when being satisfied by certain condition, fingerprint recognition can be just carried out, without fingerprint recognition behaviour is performed a plurality of times Make, therefore the efficiency and accuracy rate of fingerprint recognition can be improved simultaneously, meanwhile, terminal determines that the factor for the condition that meets is more, refers to The accuracy rate of line identification will be higher.
In addition, terminal can also determine prompting mode, and by carrying when carrying out fingerprint recognition and determining recognition result Show that mode prompts recognition result；Alternatively, while determining the corresponding fingerprint image of touch operation and carry out fingerprint recognition It determines prompting mode, when carrying out fingerprint recognition and determining recognition result, recognition result is prompted by prompting mode.
When the display screen module of terminal can be after the parameter for determining touch operation meets certain condition, to the finger of terminal Line module sends identification message, so that fingerprint is identified in fingerprint module, fingerprint recognition is carried out simultaneously in the fingerprint module of terminal After obtaining recognition result, can to the host of terminal send identification complete message, host receive identification complete message when, Can determine screen wake up, vibrations, at least one of play sound effect and the display operation such as animation, and will be determining at least one Operation is determined as prompting mode, so as to prompt user to check fingerprint recognition result by the prompting mode.In addition, the identification It completes that fingerprint recognition can not be carried in message as a result, to that is to say that host is performed both by when recognition result is consistent or inconsistent identical Prompt operation, after viewing prompt to user, can know that fingerprint is known by modes such as the recognition result message of display Not as a result, certainly, in practical applications, which completes that fingerprint recognition can also be carried in message as a result, to when host connects When receiving identification completion message, the fingerprint recognition result that message carries can be completed according to the identification and execute different prompt behaviour Make, to which user directly can know fingerprint recognition result by the difference of the prompting messages such as audio, animation.
In addition, in practical applications, the display screen module of terminal can also meet centainly in the parameter for determining touch operation After condition, prompt preparation message is sent to host while sending identification message to fingerprint module, so that host is true in advance Surely the prompting mode that will be executed can pass through when message is completed in the identification that host receives the transmission of fingerprint module immediately later Prompting mode prompt user determining in advance check fingerprint recognition as a result, so as to shorten entire terminal response time, in turn Improve the efficiency that terminal executes prompt operation.
It in the embodiments of the present disclosure, can be with when detecting the touch operation for carrying out fingerprint recognition on a display screen Actuating pressure, touch location and the effect duration of the touch operation on a display screen are determined, later when actuating pressure is more than or waits When preset pressure threshold value, touch location are located at default identification region and effect duration is more than preset duration, it may be determined that this is touched It touches the corresponding fingerprint image of operation and carries out fingerprint recognition, that is to say that the touch operation parameter as user meets some requirements When, then fingerprint recognition is carried out, the accuracy rate of fingerprint recognition can be improved, and without repeatedly determining the corresponding fingerprint of the touch operation Image, to reduce the power consumption of terminal.
Fig. 3 A are a kind of block diagrams for fingerprint identification device 300 that the embodiment of the present disclosure provides.Referring to Fig. 3 A, which includes First determining module 301 and the second determining module 302.
First determining module 301, for when detecting the touch operation for carrying out fingerprint recognition on a display screen, really Determine the actuating pressure and touch location of touch operation on a display screen；
Second determining module 302, for when actuating pressure is more than or equal to preset pressure threshold value and touch location is positioned at pre- If when identification region, determining the corresponding fingerprint image of touch operation and carrying out fingerprint recognition.
Optionally, referring to Fig. 3 B, which further includes：
Third determining module 303, for determining the effect duration of touch operation on a display screen；
Correspondingly, the second determining module 302 includes：
First determination sub-module, for being greater than or equal to preset pressure threshold value, touch location positioned at default when actuating pressure Identification region and effect duration be more than preset duration when, determine the corresponding fingerprint image of touch operation and carry out fingerprint recognition.
Optionally, referring to Fig. 3 C, the first determining module 301 includes：
Second determination sub-module 3011, for determining touch operation on a display screen by the pressure sensor of display screen Actuating pressure；Alternatively,
Third determination sub-module 3012, the capacitance for the public electrode based on display screen determine touch operation in display screen On actuating pressure.
Optionally, referring to Fig. 3 D, the first determining module 301 includes：
Detection sub-module 3013, for for each crossed electrode in multiple crossed electrodes on display screen, detection to be touched Touch the capacitance for acting on crossed electrode when on display screen；
4th determination sub-module 3014, the capacitance of crossed electrode and friendship when for determining that touch operation acts on display screen Difference between the reference capacitance of interdigitated electrode obtains the capacitive differential of crossed electrode；
5th determination sub-module 3015, for when there are the capacitive differentials of at least one crossed electrode in multiple crossed electrodes When more than predetermined capacitive, the position of at least one crossed electrode on a display screen is determined；
6th determination sub-module 3016, for the position area defined by least one crossed electrode on a display screen Location determination is the touch location of touch operation.
Optionally, referring to Fig. 3 E, the first determining module 301 includes：
7th determination sub-module 3017, the electricity that first electrode generates when for determining that touch operation acts on display screen The electric current that the electric current and the 4th electrode for the electric current, the generation of third electrode that stream, second electrode generate generate, first electrode, the second electricity Pole, third electrode and the 4th electrode are the first predeterminated position for being separately positioned on terminal where display screen, the second predeterminated position, the The electrode of three predeterminated positions and the 4th predetermined position；
8th determination sub-module 3018, for being based on first electrode, second electrode, third electrode and the 4th electrode arbitrary three Electric current caused by the adjacent electrode in a position determines the touch location of touch operation on a display screen.
Optionally, referring to Fig. 3 F, which further includes：
4th determining module 304, for when the central point of touch location is located in default identification region, determining and touching position Setting in default identification region；Alternatively,
5th determining module 305, for when touch location central point and the central point of default identification region between away from When from less than pre-determined distance, determine that touch location is located at default identification region.
Optionally, referring to Fig. 3 G, which further includes：
First reminding module 306, for when carrying out fingerprint recognition and determining recognition result, determining prompting mode, and Recognition result is prompted by prompting mode；
Or
Second reminding module 307, for determining the corresponding fingerprint image of touch operation and carry out fingerprint recognition while is true Determine prompting mode, when carrying out fingerprint recognition and determining recognition result, recognition result is prompted by prompting mode.
It in the embodiments of the present disclosure, can be with when detecting the touch operation for carrying out fingerprint recognition on a display screen The actuating pressure and touch location of the touch operation on a display screen are determined, later when actuating pressure is greater than or equal to preset pressure When threshold value and touch location are located at default identification region, it may be determined that the corresponding fingerprint image of the touch operation simultaneously carries out fingerprint knowledge Not, it that is to say when the touch operation parameter of user meets some requirements, then carry out fingerprint recognition, fingerprint recognition can be improved Accuracy rate, and without repeatedly determining the touch operation corresponding fingerprint image, to reduce the power consumption of terminal.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method Embodiment in be described in detail, explanation will be not set forth in detail herein.
Fig. 4 is a kind of block diagram for fingerprint identification device 400 that the embodiment of the present disclosure provides.For example, device 400 can be moved Mobile phone, computer, digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, body-building are set It is standby, personal digital assistant etc..
With reference to Fig. 4, device 400 may include following one or more components：Processing component 402, memory 404, power supply Component 406, multimedia component 408, audio component 410, the interface 412 of input/output (I/O), sensor module 414, and Communication component 416.
The integrated operation of 402 usual control device 400 of processing component, such as with display, call, data communication, phase Machine operates and record operates associated operation.Processing component 402 may include that one or more processors 420 refer to execute It enables, to perform all or part of the steps of the methods described above.In addition, processing component 402 may include one or more modules, just Interaction between processing component 402 and other assemblies.For example, processing component 402 may include multi-media module, it is more to facilitate Interaction between media component 408 and processing component 402.
Memory 404 is configured as storing various types of data to support the operation in device 400.These data are shown Example includes instruction for any application program or method that are operated on device 400, contact data, and telephone book data disappears Breath, picture, video etc..Memory 404 can be by any kind of volatibility or non-volatile memory device or their group It closes and realizes, such as static RAM (SRAM), electrically erasable programmable read-only memory (EEPROM) is erasable to compile Journey read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash Device, disk or CD.
Power supply module 406 provides power supply for the various assemblies of device 400.Power supply module 406 may include power management system System, one or more power supplys and other generated with for device 400, management and the associated component of distribution power supply.
Multimedia component 408 is included in the screen of one output interface of offer between described device 400 and user.One In a little embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen Curtain may be implemented as touch screen, to receive input signal from the user.Touch panel includes one or more touch sensings Device is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding action Boundary, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more matchmakers Body component 408 includes a front camera and/or rear camera.When device 400 is in operation mode, such as screening-mode or When video mode, front camera and/or rear camera can receive external multi-medium data.Each front camera and Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 410 is configured as output and/or input audio signal.For example, audio component 410 includes a Mike Wind (MIC), when device 400 is in operation mode, when such as call model, logging mode and speech recognition mode, microphone by with It is set to reception external audio signal.The received audio signal can be further stored in memory 404 or via communication set Part 416 is sent.In some embodiments, audio component 410 further includes a loud speaker, is used for exports audio signal.
I/O interfaces 412 provide interface between processing component 402 and peripheral interface module, and above-mentioned peripheral interface module can To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock Determine button.
Sensor module 414 includes one or more sensors, and the state for providing various aspects for device 400 is commented Estimate.For example, sensor module 414 can detect the state that opens/closes of device 400, and the relative positioning of component, for example, it is described Component is the display and keypad of device 400, and sensor module 414 can be with 400 1 components of detection device 400 or device Position change, the existence or non-existence that user contacts with device 400,400 orientation of device or acceleration/deceleration and device 400 Temperature change.Sensor module 414 may include proximity sensor, be configured to detect without any physical contact Presence of nearby objects.Sensor module 414 can also include optical sensor, such as CMOS or ccd image sensor, at As being used in application.In some embodiments, which can also include acceleration transducer, gyro sensors Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 416 is configured to facilitate the communication of wired or wireless way between device 400 and other equipment.Device 400 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or combination thereof.In an exemplary implementation In example, communication component 416 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel. In one exemplary embodiment, the communication component 416 further includes near-field communication (NFC) module, to promote short range communication.Example Such as, NFC module can be based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology, Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 400 can be believed by one or more application application-specific integrated circuit (ASIC), number Number processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
In the exemplary embodiment, it includes the non-transitorycomputer readable storage medium instructed, example to additionally provide a kind of Such as include the memory 404 of instruction, above-metioned instruction can be executed by the processor 420 of device 400 to complete the above method.For example, The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk With optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is by the processing of mobile terminal When device executes so that mobile terminal is able to carry out a kind of fingerprint identification method, the method includes：
When detecting the touch operation for carrying out fingerprint recognition on a display screen, determine touch operation on a display screen Actuating pressure and touch location；
When actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, determines and touch It operates corresponding fingerprint image and carries out fingerprint recognition.
Optionally, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, Before determining the corresponding fingerprint image of touch operation and carrying out fingerprint recognition, further include：
Determine the effect duration of touch operation on a display screen；
Correspondingly, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, It determines the corresponding fingerprint image of touch operation and carries out fingerprint recognition, including：
It grows up when actuating pressure is greater than or equal to preset pressure threshold value, touch location is located at default identification region and acts on When preset duration, determines the corresponding fingerprint image of touch operation and carry out fingerprint recognition.
Optionally it is determined that the actuating pressure of touch operation on a display screen, including：
The actuating pressure of touch operation on a display screen is determined by the pressure sensor of display screen；Alternatively,
The actuating pressure of touch operation on a display screen is determined based on the capacitance of the public electrode of display screen.
Optionally it is determined that the touch location of touch operation on a display screen, including：
For each crossed electrode in multiple crossed electrodes on display screen, detection touch operation acts on display screen When crossed electrode capacitance；
It determines when touch operation acts on display screen between the capacitance of crossed electrode and the reference capacitance of crossed electrode Difference obtains the capacitive differential of crossed electrode；
When being more than predetermined capacitive there are the capacitive differential of at least one crossed electrode in multiple crossed electrodes, determine at least The position of one crossed electrode on a display screen；
It is touching for touch operation by the position area defined location determination of at least one crossed electrode on a display screen Touch position.
Optionally it is determined that the touch location of touch operation on a display screen, including：
Determine electric current that electric current, second electrode that first electrode when touch operation acts on display screen generates generate, the The electric current that the electric current and the 4th electrode that three electrodes generate generate, first electrode, second electrode, third electrode and the 4th electrode are point The first predeterminated position, the second predeterminated position, third predeterminated position and the 4th predeterminated position of the terminal where display screen are not set The electrode at place；
Produced by first electrode, second electrode, the adjacent electrode of third electrode and arbitrary three positions of the 4th electrode Electric current determine the touch location of touch operation on a display screen.
Optionally, when actuating pressure is greater than or equal to preset pressure threshold value and touch location is located at default identification region, Before determining the corresponding fingerprint image of touch operation and carrying out fingerprint recognition, further include：
When the central point of touch location is located in default identification region, determine that touch location is located at default identification region； Alternatively,
When the distance between the central point of touch location and the central point of default identification region are less than pre-determined distance, determine Touch location is located at default identification region.
Optionally, this method further includes：
When carrying out fingerprint recognition and determining recognition result, prompting mode is determined, and tied to identification by prompting mode Fruit is prompted；
Or
It determines the corresponding fingerprint image of touch operation and carries out determining prompting mode while fingerprint recognition, when progress fingerprint When identifying and determining recognition result, recognition result is prompted by prompting mode.
It in the embodiments of the present disclosure, can be with when detecting the touch operation for carrying out fingerprint recognition on a display screen The actuating pressure and touch location of the touch operation on a display screen are determined, later when actuating pressure is greater than or equal to preset pressure When threshold value and touch location are located at default identification region, it may be determined that the corresponding fingerprint image of the touch operation simultaneously carries out fingerprint knowledge Not, it that is to say when the touch operation parameter of user meets some requirements, then carry out fingerprint recognition, fingerprint recognition can be improved Accuracy rate, and without repeatedly determining the touch operation corresponding fingerprint image, to reduce the power consumption of terminal.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the present invention Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or Person's adaptive change follows the general principle of the present invention and includes the undocumented common knowledge in the art of the disclosure Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following Claim is pointed out.
It should be understood that the invention is not limited in the precision architectures for being described above and being shown in the accompanying drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.

Claims (15)

1. a kind of fingerprint identification method, which is characterized in that the method includes：
When detecting the touch operation for carrying out fingerprint recognition on a display screen, determine the touch operation in the display Actuating pressure on screen and touch location；
When the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is located at default identification region, determine The corresponding fingerprint image of the touch operation simultaneously carries out fingerprint recognition.
2. the method as described in claim 1, which is characterized in that described when the actuating pressure is greater than or equal to preset pressure threshold It is worth and the touch location is positioned at when presetting identification region, determines the corresponding fingerprint image of the touch operation and carry out fingerprint knowledge Before not, further include：
Determine the effect duration of the touch operation on the display screen；
Correspondingly, described when the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is located at default identification When region, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition, including：
When the actuating pressure is greater than or equal to preset pressure threshold value, the touch location is located at default identification region and the work When used time length is more than preset duration, determines the corresponding fingerprint image of the touch operation and carry out fingerprint recognition.
3. the method as described in claim 1, which is characterized in that the work of the determination touch operation on the display screen With pressure, including：
The actuating pressure of the touch operation on the display screen is determined by the pressure sensor of the display screen；Alternatively,
The actuating pressure of the touch operation on the display screen is determined based on the capacitance of the public electrode of the display screen.
4. the method as described in claim 1, which is characterized in that the determination touch operation on the display screen touch Position is touched, including：
For each crossed electrode in multiple crossed electrodes on the display screen, detect the touch operation act on it is described The capacitance of crossed electrode when on display screen；
Determine the base of the capacitance of the crossed electrode and the crossed electrode when touch operation acts on the display screen Difference between pseudo-capacitance obtains the capacitive differential of the crossed electrode；
When being more than predetermined capacitive there are the capacitive differential of at least one crossed electrode in the multiple crossed electrode, described in determination The position of at least one crossed electrode on the display screen；
It is the touch by the position area defined location determination of at least one crossed electrode on the display screen The touch location of operation.
5. the method as described in claim 1, which is characterized in that the determination touch operation on the display screen touch Position is touched, including：
Determine the electricity that the touch operation acts on the electric current that first electrode generates when on the display screen, second electrode generates The electric current that the electric current and the 4th electrode that stream, third electrode generate generate, the first electrode, the second electrode, the third Electrode and the 4th electrode be the first predeterminated position of terminal where being separately positioned on the display screen, the second predeterminated position, The electrode of third predeterminated position and the 4th predetermined position；
It is adjacent based on the first electrode, the second electrode, the third electrode and arbitrary three positions of the 4th electrode Electrode caused by electric current determine the touch location of the touch operation on the display screen.
6. method according to any one of claims 1 to 5, which is characterized in that described to be preset when the actuating pressure is greater than or equal to When pressure threshold and the touch location are located at default identification region, determine the corresponding fingerprint image of the touch operation and carry out Before fingerprint recognition, further include：
When the central point of the touch location is located in the default identification region, it is described pre- to determine that the touch location is located at If identification region；Alternatively,
When the distance between the central point of the touch location and the central point of the default identification region are less than pre-determined distance, Determine that the touch location is located at the default identification region.
7. the method as described in claim 1, which is characterized in that the method further includes：
When carrying out fingerprint recognition and determining recognition result, prompting mode is determined, and by the prompting mode to the knowledge Other result is prompted；
Or
It determines the corresponding fingerprint image of the touch operation and carries out determining prompting mode while fingerprint recognition, when progress fingerprint When identifying and determining recognition result, the recognition result is prompted by the prompting mode.
8. a kind of fingerprint identification device, which is characterized in that described device includes：
First determining module, described in when detecting the touch operation for carrying out fingerprint recognition on a display screen, determining The actuating pressure and touch location of touch operation on the display screen；
Second determining module, for when the actuating pressure is more than or equal to preset pressure threshold value and the touch location is positioned at pre- If when identification region, determining the corresponding fingerprint image of the touch operation and carrying out fingerprint recognition.
9. device as claimed in claim 8, which is characterized in that described device further includes：
Third determining module, for determining the effect duration of the touch operation on the display screen；
Correspondingly, second determining module includes：
First determination sub-module is located at for working as the actuating pressure more than or equal to preset pressure threshold value, the touch location Default identification region and when the effect duration is more than preset duration, determines the corresponding fingerprint image of the touch operation and carries out Fingerprint recognition.
10. device as claimed in claim 8, which is characterized in that first determining module includes：
Second determination sub-module, for determining the touch operation in the display screen by the pressure sensor of the display screen On actuating pressure；Alternatively,
Third determination sub-module, the capacitance for the public electrode based on the display screen determine the touch operation described aobvious Actuating pressure in display screen.
11. device as claimed in claim 8, which is characterized in that first determining module includes：
Detection sub-module, for for each crossed electrode in multiple crossed electrodes on the display screen, detecting described touch Touch the capacitance of crossed electrode when acting on the display screen；
4th determination sub-module, the capacitance of crossed electrode when for determining that the touch operation acts on the display screen Difference between the reference capacitance of the crossed electrode obtains the capacitive differential of the crossed electrode；
5th determination sub-module, for being more than when there are the capacitive differentials of at least one crossed electrode in the multiple crossed electrode When predetermined capacitive, the position of at least one crossed electrode on the display screen is determined；
6th determination sub-module, for the position area defined by least one crossed electrode on the display screen Location determination is the touch location of the touch operation.
12. device as claimed in claim 8, which is characterized in that first determining module includes：
7th determination sub-module, the electricity that first electrode generates when for determining that the touch operation acts on the display screen The electric current that the electric current and the 4th electrode for the electric current, the generation of third electrode that stream, second electrode generate generate, the first electrode, institute It is to be separately positioned on the first of display screen place terminal to preset to state second electrode, the third electrode and the 4th electrode Position, the second predeterminated position, third predeterminated position and the 4th predetermined position electrode；
8th determination sub-module, for based on the first electrode, the second electrode, the third electrode and the 4th electricity The electric current that pole generates determines the touch location of the touch operation on the display screen.
13. the device as described in claim 8-12 is any, which is characterized in that described device further includes：
4th determining module, described in when the central point of the touch location is located in the default identification region, determining Touch location is located at the default identification region；Alternatively,
5th determining module, for when the touch location central point and the central point of the default identification region between away from When from less than pre-determined distance, determine that the touch location is located at the default identification region.
14. device as claimed in claim 8, which is characterized in that described device further includes：
First reminding module, for when carrying out fingerprint recognition and determining recognition result, determining prompting mode, and by described Prompting mode prompts the recognition result；
Or
Second reminding module is carried for determining the corresponding fingerprint image of the touch operation and determining while carry out fingerprint recognition Show mode, when carrying out fingerprint recognition and determining recognition result, the recognition result is carried by the prompting mode Show.
15. a kind of fingerprint identification device, which is characterized in that described device includes：
Processor；
Memory for storing processor-executable instruction；
Wherein, the processor is configured as：
When detecting the touch operation for carrying out fingerprint recognition on a display screen, determine the touch operation in the display Actuating pressure on screen and touch location；
When the actuating pressure is greater than or equal to preset pressure threshold value and the touch location is located at default identification region, determine The corresponding fingerprint image of the touch operation simultaneously carries out fingerprint recognition.
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CN110135330A (en) * 2019-05-13 2019-08-16 Oppo（重庆）智能科技有限公司 Fingerprint recognition feedback method, device, storage medium and electronic equipment
CN110837755A (en) * 2018-08-16 2020-02-25 北京小米移动软件有限公司 Fingerprint identification method and device

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