CN109426427A - Touch control terminal and its unlocked by fingerprint method and apparatus - Google Patents
Touch control terminal and its unlocked by fingerprint method and apparatus Download PDFInfo
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- CN109426427A CN109426427A CN201710731798.0A CN201710731798A CN109426427A CN 109426427 A CN109426427 A CN 109426427A CN 201710731798 A CN201710731798 A CN 201710731798A CN 109426427 A CN109426427 A CN 109426427A
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- 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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04108—Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
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Abstract
The present invention relates to a kind of touch control terminal and its unlocked by fingerprint method and apparatus, when touch control terminal is in screen lock state, carry out full screen scanning to the touch screen emission detection waveform of touch control terminal；It receives and returns to waveform, obtain waveform change information according to returning to waveform and detecting waveform.Fingerprint feature information is obtained according to waveform extracting change information, certification is unlocked according to fingerprint feature information, operation is unlocked to touch control terminal after unlock certification passes through.When touch control terminal is in screen lock state, by issuing detection waveform and obtaining fingerprint feature information according to the return waveform received, fingerprint detection can also be carried out by touching without user, to realize suspension unlocked by fingerprint function, and it can realize the unlocked by fingerprint of all touch screen, touch control terminal is preposition or a certain position of postposition without sticking to, and improves the operation ease of unlocked by fingerprint.
Description
Technical field
The present invention relates to technical field of touch control, more particularly to a kind of touch control terminal and its unlocked by fingerprint method and apparatus.
Background technique
Touch screen be also known as " touch screen ", " touch panel ", be it is a kind of it is receivable touch etc. input signals induction type dress
It sets.When contacting the graphic button on screen, the haptic feedback system on screen can drive each according to the formula of preprogramming
Kind connection device, is substituted for mechanical push button panel, and lively visual and sound effects are produced by liquid crystal display picture.
Traditional unlocked by fingerprint unit for touching Terminal fingerprints unlocking manner and using capacitor push type, and unlocked by fingerprint list
Member is only limited to be arranged in the lead position (such as mobile phone home key) or postposition (such as near camera) of terminal, more office
Limit.User can only realize the unlock function of fingerprint by preposition or postposition the unlocked by fingerprint unit of pressing setting at the terminal
Can, traditional touch Terminal fingerprints unlocking manner haves the shortcomings that operation ease is low.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, provide a kind of touch control terminal that unlocked by fingerprint operation ease is high and its
Unlocked by fingerprint method and apparatus.
A kind of unlocked by fingerprint method of touch control terminal, comprising the following steps:
When touch control terminal is in screen lock state, full frame sweep is carried out to the touch screen emission detection waveform of the touch control terminal
It retouches；
It receives and returns to waveform, waveform change information is obtained according to the return waveform and the detection waveform；
Fingerprint feature information is obtained according to the waveform extracting change information；
It is unlocked certification according to the fingerprint feature information, the touch control terminal is solved after unlock certification passes through
Lock operation.
The unlocked by fingerprint method of above-mentioned touch control terminal, when touch control terminal is in screen lock state, by issuing waveform and root
Fingerprint feature information is obtained according to the return waveform received, fingerprint detection can also be carried out by touching without user, to realize suspension
Unlocked by fingerprint function, and can realize the unlocked by fingerprint of all touch screen, without stick to that touch control terminal is preposition or postposition it is a certain
Position improves the operation ease of unlocked by fingerprint.
In one embodiment, described when touch control terminal is in screen lock state, the touch screen of the touch control terminal is sent out
It penetrates before the step of detection waveform carries out full screen scanning, further comprising the steps of:
Waveform frequency adjustment instruction is received, and the frequency of detection waveform is set according to the frequency adjustment instruction.
The frequency for adjusting probing wave shape can be configured input waveform frequency adjustment instruction according to the actual situation, to adjust
The wavelength of whole detection waveform improves unlocked by fingerprint control convenience.
In one embodiment, described to receive the return waveform generated after the detection waveform is repelled, it is returned according to described
The step of echo shape and the detection waveform obtain waveform change information, comprising the following steps:
It receives and returns to waveform, and waved filter is carried out to the return waveform according to the waveform frequency adjustment instruction；
Waveform change information is obtained according to filtered waveform and the detection waveform.
The return waveform received is filtered, according to filtered waveform extracting waveform change information, avoids receiving
Acquisition of information accuracy is influenced to other interference waveforms, improves unlocked by fingerprint reliability.
In one embodiment, the waveform change information includes waveform phase change information；Changed according to the waveform
Information extraction obtains the step of fingerprint feature information, comprising the following steps:
Detection waveform is obtained by the change in depth information between finger rebound position according to waveform phase change information；
Fingerprint image is generated according to the change in depth information, and is extracted to obtain the fingerprint spy according to the fingerprint image
Reference breath.
The change in depth information between rebound position, which is obtained, using waveform phase change information generates fingerprint image, Jin Erti
Obtain fingerprint feature information.Finger print lines is determined according to the phase variation characterisation that waveform rebounds, it can be ensured that fingerprint characteristic
The accuracy of information.
It is in one embodiment, described that certification is unlocked according to the fingerprint feature information, comprising:
Obtain the similarity of the fingerprint feature information and preset certification finger print data；
When the similarity is greater than preset similarity threshold, then unlocks certification and pass through.
The similarity for calculating fingerprint feature information and preset certification finger print data, according to similarity and similarity threshold
Comparison result determines whether unlock certification passes through, easy to operate reliable.
A kind of unlocked by fingerprint device of touch control terminal, comprising:
Full screen scanning module, for emitting the touch screen of the touch control terminal when touch control terminal is in screen lock state
It detects waveform and carries out full screen scanning；
Waveform receiving module, returns to waveform for receiving, and obtains waveform according to the return waveform and the detection waveform
Change information；
Fingerprint extraction module, for obtaining fingerprint feature information according to the waveform extracting change information；
Authentication module is unlocked, it is right after unlock certification passes through for being unlocked certification according to the fingerprint feature information
The touch control terminal is unlocked operation.
The unlocked by fingerprint device of above-mentioned touch control terminal, when touch control terminal is in screen lock state, by issuing waveform and root
Fingerprint feature information is obtained according to the return waveform received, fingerprint detection can also be carried out by touching without user, to realize suspension
Unlocked by fingerprint function, and can realize the unlocked by fingerprint of all touch screen, without stick to that touch control terminal is preposition or postposition it is a certain
Position improves the operation ease of unlocked by fingerprint.
In one embodiment, the unlocked by fingerprint device of touch control terminal further include:
Waveform setup module is used in full screen scanning module when touch control terminal is in screen lock state, whole to the touch-control
Before the touch screen emission detection waveform at end carries out full screen scanning, waveform frequency adjustment instruction is received, and according to the frequency tune
The frequency of whole instruction setting detection waveform.
The frequency for adjusting probing wave shape can be configured input waveform frequency adjustment instruction according to the actual situation, to adjust
The wavelength of whole detection waveform improves unlocked by fingerprint control convenience.
In one embodiment, the waveform change information includes waveform phase change information；The fingerprint extraction module
Include:
First extraction unit, for obtaining detection waveform by between finger rebound position according to waveform phase change information
Change in depth information；
Second extraction unit, for generating fingerprint image according to the change in depth information, and according to the fingerprint image
Extraction obtains the fingerprint feature information.
The change in depth information between rebound position, which is obtained, using waveform phase change information generates fingerprint image, Jin Erti
Obtain fingerprint feature information.Finger print lines is determined according to the phase variation characterisation that waveform rebounds, it can be ensured that fingerprint characteristic
The accuracy of information.
In one embodiment, the unlock authentication module obtains the fingerprint feature information and preset certification fingerprint number
According to similarity, the similarity be greater than preset similarity threshold when, then unlock certification and pass through.
The similarity for calculating fingerprint feature information and preset certification finger print data, according to similarity and similarity threshold
Comparison result determines whether unlock certification passes through, easy to operate reliable.
A kind of touch control terminal, including touch screen, sensor and controller, the sensor are set to the touch screen, and
The sensor internal is provided with fingerprint recognition matrix, and the controller connects the sensor, and the controller includes:
Full screen scanning module, for emitting the touch screen of the touch control terminal when touch control terminal is in screen lock state
It detects waveform and carries out full screen scanning；
Waveform receiving module, returns to waveform for receiving, and obtains waveform according to the return waveform and the detection waveform
Change information；
Fingerprint extraction module, for obtaining fingerprint feature information according to the waveform extracting change information；
Authentication module is unlocked, it is right after unlock certification passes through for being unlocked certification according to the fingerprint feature information
The touch control terminal is unlocked operation.
Above-mentioned touch control terminal, when touch control terminal is in screen lock state, by issuing waveform and according to the return received
Waveform obtains fingerprint feature information, and fingerprint detection can also be carried out by touching without user, thus realize suspension unlocked by fingerprint function, and
The unlocked by fingerprint that all touch screen can be achieved, touch control terminal is preposition or a certain position of postposition without sticking to, and improves fingerprint
The operation ease of unlock.
Above-mentioned touch control terminal and its unlocked by fingerprint method and apparatus, when touch control terminal is in screen lock state, to touch-control end
The touch screen emission detection waveform at end carries out full screen scanning；It receives and returns to waveform, obtain wave according to returning to waveform and detecting waveform
Shape change information.Fingerprint feature information is obtained according to waveform extracting change information, certification is unlocked according to fingerprint feature information,
Operation is unlocked to touch control terminal after unlock certification passes through.When touch control terminal is in screen lock state, by issuing waveform
And fingerprint feature information is obtained according to the return waveform received, fingerprint detection can also be carried out by touching without user, to realize
Suspension unlocked by fingerprint function, and can realize the unlocked by fingerprint of all touch screen, without sticking to that touch control terminal is preposition or postposition
A certain position improves the operation ease of unlocked by fingerprint.
Detailed description of the invention
Fig. 1 is the flow chart of the unlocked by fingerprint method of touch control terminal in an embodiment；
Fig. 2 is the flow chart of the unlocked by fingerprint method of touch control terminal in another embodiment；
Fig. 3 is the structure chart of the unlocked by fingerprint device of touch control terminal in an embodiment；
Fig. 4 is the structure chart of the unlocked by fingerprint device of touch control terminal in another embodiment；
Fig. 5 is the structural schematic diagram of touch control terminal in an embodiment；
Fig. 6 is the unlocked by fingerprint schematic illustration of touch control terminal in an embodiment.
Specific embodiment
In one embodiment, a kind of unlocked by fingerprint method of touch control terminal, touch control terminal specifically can be touch screen hand
The equipment such as machine, tablet computer, touch-control advertisement screen.As shown in Figure 1, method includes the following steps:
Step S120: when touch control terminal is in screen lock state, the touch screen emission detection waveform of touch control terminal is carried out
Full screen scanning.
Specifically, whether detection touch control terminal is in screen lock state, can be obtained by the existing control program of touch control terminal,
, can be by fingerprint recognition matrix to the touch screen emission detection wave of touch control terminal when touch control terminal is in screen lock state, it will be whole
Effective range of a touch screen as unlocked by fingerprint refers to as long as carrying out unlocked by fingerprint operation in the range can be detected
Line recognition matrix can send and receive waveform and identify waveform fixed wave length and variation.Full screen scanning is carried out to touch screen, it can
Being scanned along the laterally opposed other side of touch screen one, it is also possible to from the opposite two sides of touch screen simultaneously to touch screen
Centre is scanned, and concrete mode is not unique.The type of detection waveform is not unique, and can be ultrasonic wave or other types
Wave.
Step S130: receiving and return to waveform, obtains waveform change information according to returning to waveform and detecting waveform.
Equally waveform can be returned to by fingerprint recognition matrix reception, be believed that detection is in one's hands if receiving return waveform
Refer to, extract the variation of waveform for sending and returning and obtain waveform change information, can be used as determining position that waveform rebounds it
Between difference, to identify the concave-convex variation of finger print, the concrete type of waveform change information is not unique.
Specifically, the equal transmitter phase of each unlocked by fingerprint unit and all identical wave of wavelength of fingerprint recognition matrix be can control
Shape, the variation degree that the difference since rebound position occurs will lead to return waveform is inconsistent, after receiving return waveform, root
It can determine the difference between rebound position according to the variation between the waveform and the corresponding waveform returned of transmission, to may recognize that hand
Refer to the concave-convex variation of fingerprint.It is appreciated that if being not received by return waveform, then it is assumed that do not detect finger, can return to step
Rapid S120 continues emission detection waveform and carries out full screen scanning.
Step S140: fingerprint feature information is obtained according to waveform extracting change information.
The waveform change information that the variation between waveform and the corresponding waveform returned sent according to detection obtains, can recognize
The concave-convex variation of finger print out, obtains fingerprint feature information to extract.Fingerprint feature information includes and the fingerprint that detects
The quantity of relevant characteristic, the fingerprint detected is not unique, can be one or more.
Step S150: being unlocked certification according to fingerprint feature information, carries out after unlock certification passes through to touch control terminal
Unlock operation.
It is unlocked certification according to fingerprint feature information, it specifically can be by fingerprint feature information and the progress of preset fingerprint information
Match, judges whether unlock certification passes through according to matching result, operation is unlocked to touch control terminal after passing through.Fingerprint characteristic letter
The quantity of breath can be one or more, if fingerprint feature information have it is multiple, there are one with preset fingerprint information matches just
It is believed that unlock certification passes through.
The unlocked by fingerprint method of above-mentioned touch control terminal, when touch control terminal is in screen lock state, by issuing waveform and root
Fingerprint feature information is obtained according to the return waveform received, fingerprint detection can also be carried out by touching without user, to realize suspension
Unlocked by fingerprint function, and realize the unlocked by fingerprint of all touch screen, it can support more fingerprint recognitions and unlock certification, be touched without sticking to
Control terminal is preposition or a certain position of postposition, improves the operation ease of unlocked by fingerprint.
In one embodiment, as shown in Fig. 2, before step 120, this method further includes step S110.
Step S110: receiving waveform frequency adjustment instruction, and the frequency of detection waveform is arranged according to frequency adjustment instruction.
Specifically waveform frequency adjustment instruction can be received by driver, different wave is arranged according to waveform frequency adjustment instruction
Frequency, to adjust the wavelength of detection waveform.User input waveform frequency adjustment instruction can detect adjusting according to the actual situation
The frequency of waveform is configured, and so as to adjust the wavelength of detection waveform, improves unlocked by fingerprint control convenience.
In one embodiment, step S130 includes step 132 and step 134.
Step 132: receiving and return to waveform, and waved filter is carried out to waveform is returned according to waveform frequency adjustment instruction.
The wavelength that can determine detection waveform according to waveform frequency adjustment instruction returns to the laggard traveling wave shape mistake of waveform receiving
Filter, removal return to the waveform medium wavelength waveform inconsistent with the wavelength of detection waveform.
Step 134: waveform change information is obtained according to filtered waveform and detection waveform.
Waveform change information is obtained according to the variation between filtered waveform and detection waveform, for use as the generation of true waveform
Difference between the position of rebound, to may recognize that the concave-convex variation of finger print.
In the present embodiment, the return waveform received is filtered, is changed according to filtered waveform extracting waveform and is believed
Breath avoids receiving other interference waveforms influence acquisition of information accuracy, improves unlocked by fingerprint reliability.
In one embodiment, waveform change information includes waveform phase change information.Step S140 include step 142 and
Step 144.
Step 142: detection waveform is obtained by the change in depth between finger rebound position according to waveform phase change information
Information.
According to waveform rebounding characteristic it is found that for wavelength and the identical waveform of phase, the position rebounded is different, rebound
The initial phase of obtained waveform can also correspond to difference.Concave-convex due to finger print changes there are difference in height, when detection waveform
It encounters when being repelled after finger, the difference between the initial phase of the return waveform generated according to rebound can learn phase not
Propagation time difference before being repelled between same waveform, can be obtained waveform quilt in conjunction with propagation time difference and wave travel speed
Change in depth information between the position of finger rebound.It is positive for string wave by detecting waveform, since the bumps of finger print become
Change in depth information very little between change, when detection waveform encounters finger, it is believed that occur within the same period of waveform
Rebound movement, due to the gap of propagation distance, the initial phase of the waveform of fingerprint convex portion rebound can be less than fingerprint recessed portion
The initial phase for dividing the waveform of rebound, the phase according to fingerprint different location rebound waveform is different, can identify rebound position
Between change in depth information.
Step 144: fingerprint image being generated according to change in depth information, and is extracted to obtain fingerprint characteristic letter according to fingerprint image
Breath.
After identifying the change in depth information between finger rebound position, fingerprint image can be generated according to change in depth information
Picture.Specifically, rebound position corresponding to the lesser return waveform of phase is biggish by phase as the convex portion of fingerprint
Depressed section of the rebound position as fingerprint corresponding to waveform is returned, determines that fingerprint shape obtains fingerprint image with this.It extracts
Characteristic point in fingerprint image, using the characteristic point of extraction as fingerprint feature information.
In the present embodiment, the change in depth information between rebound position is obtained using waveform phase change information and generates fingerprint
Image, and then extract and obtain fingerprint feature information.Finger print lines is determined according to the phase variation characterisation that waveform rebounds, it can be true
Protect the accuracy of fingerprint feature information.
In one embodiment, certification, including step 152 and step are unlocked according to fingerprint feature information in step S150
Rapid 154.
Step 152: obtaining the similarity of fingerprint feature information and preset certification finger print data.
Fingerprint feature information and certification finger print data may each be including one or more finger print informations, be believed with fingerprint characteristic
For breath and certification finger print data include a variety of finger print informations, the information of a variety of fingerprints can be stored in advance, it is more collecting
After a fingerprint, each finger print information in each finger print information in fingerprint feature information and certification finger print data is carried out respectively
Compare calculating similarity.
Step 154: when similarity is greater than preset similarity threshold, then unlocking certification and pass through.
The specific value of similarity threshold is not unique, by judging that the relationship of similarity and similarity threshold determines unlock
Whether certification passes through.When fingerprint feature information and certification finger print data include a variety of finger print informations, if the fingerprint detected
There are a kind of similarities of a certain finger print information in finger print information and certification finger print data to be greater than similarity threshold in characteristic information,
Then it is believed that the fingerprint detected is matched with one in multiple fingerprints of storage, unlock certification passes through.
In the present embodiment, calculate fingerprint feature information and it is preset certification finger print data similarity, according to similarity with
The comparison result of similarity threshold determines whether unlock certification passes through, easy to operate reliable.
In one embodiment, a kind of unlocked by fingerprint device of touch control terminal, touch control terminal specifically can be touch screen hand
The equipment such as machine, tablet computer, touch-control advertisement screen.As shown in figure 3, the device includes full screen scanning module 120, waveform receiving module
130, fingerprint extraction module 140 and unlock authentication module 150.
Full screen scanning module 120 is used for when touch control terminal is in screen lock state, is emitted the touch screen of touch control terminal and is visited
It surveys waveform and carries out full screen scanning.
Whether detection touch control terminal is in screen lock state, can be obtained by the existing control program of touch control terminal, in touch-control
When terminal is in screen lock state, to the touch screen emission detection wave of touch control terminal, using entire touch screen having as unlocked by fingerprint
Range is imitated, as long as carrying out unlocked by fingerprint operation in the range can be detected.Full screen scanning is carried out to touch screen, can be
The other side laterally opposed along touch screen one is scanned, and is also possible to from the opposite two sides of touch screen simultaneously among touch screen
It is scanned, concrete mode is not unique.The type of detection waveform is not unique, and can be ultrasonic wave or other types wave.
Waveform receiving module 130 returns to waveform for receiving, and obtains waveform variation letter according to waveform and detection waveform is returned
Breath.
It is believed that if receiving return waveform and detects finger, the variation for extracting the waveform for sending and returning obtains waveform
Change information can be used as the difference between the position that determining waveform rebounds to identify the concave-convex variation of finger print, wave
The concrete type of shape change information is not unique.It is appreciated that if being not received by return waveform, then it is assumed that do not detect in one's hands
Refer to, full screen scanning module 120 continues emission detection waveform and carries out full screen scanning.
Fingerprint extraction module 140 is used to obtain fingerprint feature information according to waveform extracting change information.
The waveform change information that the variation between waveform and the corresponding waveform returned sent according to detection obtains, can recognize
The concave-convex variation of finger print out, obtains fingerprint feature information to extract.Fingerprint feature information includes and the fingerprint that detects
The quantity of relevant characteristic, the fingerprint detected is not unique, can be one or more.
Unlock authentication module 150 is used to be unlocked certification according to fingerprint feature information, to touching after unlock certification passes through
Control terminal is unlocked operation.
It is unlocked certification according to fingerprint feature information, it specifically can be by fingerprint feature information and the progress of preset fingerprint information
Match, judges whether unlock certification passes through according to matching result, operation is unlocked to touch control terminal after passing through.Fingerprint characteristic letter
The quantity of breath can be one or more, if fingerprint feature information have it is multiple, there are one with preset fingerprint information matches just
It is believed that unlock certification passes through.
The unlocked by fingerprint device of above-mentioned touch control terminal, when touch control terminal is in screen lock state, by issuing waveform and root
Fingerprint feature information is obtained according to the return waveform received, fingerprint detection can also be carried out by touching without user, to realize suspension
Unlocked by fingerprint function, and realize the unlocked by fingerprint of all touch screen, it can support more fingerprint recognitions and unlock certification, be touched without sticking to
Control terminal is preposition or a certain position of postposition, improves the operation ease of unlocked by fingerprint.
In one embodiment, as shown in figure 4, the unlocked by fingerprint device of touch control terminal further includes waveform setup module 110.
Waveform setup module 110 is used in full screen scanning module 120 when touch control terminal is in screen lock state, to touch-control end
Before the touch screen emission detection waveform at end carries out full screen scanning, waveform frequency adjustment instruction is received, and refer to according to frequency adjustment
Enable the frequency of setting detection waveform.
Waveform frequency adjustment instruction is received, different wave frequency is arranged according to waveform frequency adjustment instruction, to adjust spy
Survey the wavelength of waveform.User can according to the actual situation input waveform frequency adjustment instruction to adjust probing wave shape frequency, thus
The frequency of detection waveform is set, unlocked by fingerprint control convenience is improved.
In one embodiment, waveform receiving module 130, which receives, returns to waveform, and according to waveform frequency adjustment instruction to returning
Echo shape carries out waved filter；Waveform change information is obtained according to filtered waveform and detection waveform.
In the present embodiment, the return waveform received is filtered, is changed according to filtered waveform extracting waveform and is believed
Breath avoids receiving other interference waveforms influence acquisition of information accuracy, improves unlocked by fingerprint reliability.
In one embodiment, waveform change information includes waveform phase change information.Fingerprint extraction module 140 includes the
One extraction unit and the second extraction unit.
First extraction unit is used to obtain detection waveform according to waveform phase change information by between finger rebound position
Change in depth information.
Second extraction unit is used to generate fingerprint image according to change in depth information, and is extracted and referred to according to fingerprint image
Line characteristic information.
In the present embodiment, the change in depth information between rebound position is obtained using waveform phase change information and generates fingerprint
Image, and then extract and obtain fingerprint feature information.Finger print lines is determined according to the phase variation characterisation that waveform rebounds, it can be true
Protect the accuracy of fingerprint feature information.
In one embodiment, unlock authentication module 150 obtains fingerprint feature information and preset certification finger print data
Similarity then unlocks certification and passes through when similarity is greater than preset similarity threshold.
In the present embodiment, calculate fingerprint feature information and it is preset certification finger print data similarity, according to similarity with
The comparison result of similarity threshold determines whether unlock certification passes through, easy to operate reliable.
In one embodiment, a kind of touch control terminal specifically can be touch-screen mobile phone, tablet computer, touch-control advertisement screen
Etc. equipment.Touch control terminal includes touch screen, sensor and controller, and sensor is set to touch screen, and sensor internal is arranged
There is a fingerprint recognition matrix, controller connects sensor, and controller includes that full screen scanning module, waveform receiving module, fingerprint mention
Modulus block and unlock authentication module.
Full screen scanning module is used for when touch control terminal is in screen lock state, to the touch screen emission detection wave of touch control terminal
Shape carries out full screen scanning.
Waveform receiving module returns to waveform for receiving, and obtains waveform change information according to waveform and detection waveform is returned.
Fingerprint extraction module is used to obtain fingerprint feature information according to waveform extracting change information.
Unlock authentication module is used to be unlocked certification according to fingerprint feature information, to touch-control end after unlock certification passes through
End is unlocked operation.
Fingerprint recognition matrix can send and receive waveform and identify waveform fixed wave length and variation.Pass through fingerprint recognition square
Battle array is to the touch screen emission detection wave of touch control terminal, using entire touch screen as the effective range of unlocked by fingerprint, as long as in the model
Enclosing interior progress unlocked by fingerprint operation can be detected, as shown in figure 5, carrying out full screen scanning to touch screen window area, can be
The other side laterally opposed along touch screen one is scanned, for example, using in X direction or Y-direction scanning form；It can also be with
It is from the opposite two sides of touch screen simultaneously to being scanned among touch screen.
Fingerprint recognition matrix includes the unlocked by fingerprint unit of array setting, as shown in fig. 6, being emitted by unlocked by fingerprint unit
It detects waveform and receives and return to waveform.After receiving return waveform, controller can determine that waveform is sent out according to waveform change information
Difference between the position of raw rebound obtains fingerprint feature information to identify the concave-convex variation of finger print.Specifically, may be used
Waved filter is carried out to waveform is returned according to waveform frequency adjustment instruction；Waveform is obtained according to filtered waveform and detection waveform
Change information avoids receiving other interference waveforms influence acquisition of information accuracy, improves unlocked by fingerprint reliability.
Wherein, waveform change information may include waveform phase change information.Controller is obtained according to waveform extracting change information
It include: to obtain detection waveform according to waveform phase change information to be become by the depth between finger rebound position to fingerprint feature information
Change information；Fingerprint image is generated according to change in depth information, and is extracted to obtain fingerprint feature information according to fingerprint image.Utilize wave
Change in depth information between shape phase change acquisition of information rebound position generates fingerprint image, and then extracts and obtain fingerprint characteristic
Information.Finger print lines is determined according to the phase variation characterisation that waveform rebounds, it can be ensured that the accuracy of fingerprint feature information.
Further, controller is unlocked certification according to fingerprint feature information, comprising: obtains fingerprint feature information and pre-
If certification finger print data similarity；When similarity is greater than preset similarity threshold, then unlocks certification and pass through.Calculating refers to
The similarity of line characteristic information and preset certification finger print data, determines according to the comparison result of similarity and similarity threshold and solves
Whether lock certification passes through, easy to operate reliable.
In addition, controller also can receive waveform frequency adjustment instruction, and fingerprint recognition square is arranged according to frequency adjustment instruction
The frequency for the detection waveform that paroxysm is penetrated.User can according to the actual situation input waveform frequency adjustment instruction to adjusting probing wave shape
Frequency is configured, and so as to adjust the wavelength of detection waveform, improves unlocked by fingerprint control convenience.
Above-mentioned touch control terminal, when touch control terminal is in screen lock state, by issuing waveform and according to the return received
Waveform obtains fingerprint feature information, and fingerprint detection can also be carried out by touching without user, thus realize suspension unlocked by fingerprint function, and
Realize all touch screen unlocked by fingerprint, can support more fingerprint recognitions and unlock certification, without stick to touch control terminal it is preposition or
The a certain position of postposition, improves the operation ease of unlocked by fingerprint.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of unlocked by fingerprint method of touch control terminal, which comprises the following steps:
When touch control terminal is in screen lock state, full screen scanning is carried out to the touch screen emission detection waveform of the touch control terminal；
It receives and returns to waveform, waveform change information is obtained according to the return waveform and the detection waveform；
Fingerprint feature information is obtained according to the waveform extracting change information；
It is unlocked certification according to the fingerprint feature information, behaviour is unlocked to the touch control terminal after unlock certification passes through
Make.
2. the unlocked by fingerprint method of touch control terminal according to claim 1, which is characterized in that described when touch control terminal is in
When screen lock state, before the step of carrying out full screen scanning to the touch screen emission detection waveform of the touch control terminal, further include with
Lower step:
Waveform frequency adjustment instruction is received, and the frequency of detection waveform is set according to the frequency adjustment instruction.
3. the unlocked by fingerprint method of touch control terminal according to claim 2, which is characterized in that the reception returns to waveform,
The step of obtaining waveform change information according to the return waveform and the detection waveform, comprising the following steps:
It receives and returns to waveform, and waved filter is carried out to the return waveform according to the waveform frequency adjustment instruction；
Waveform change information is obtained according to filtered waveform and the detection waveform.
4. the unlocked by fingerprint method of touch control terminal according to claim 1, which is characterized in that the waveform change information packet
Include waveform phase change information；Described the step of fingerprint feature information is obtained according to the waveform extracting change information, including with
Lower step:
Detection waveform is obtained by the change in depth information between finger rebound position according to waveform phase change information；
Fingerprint image is generated according to the change in depth information, and is extracted to obtain the fingerprint characteristic letter according to the fingerprint image
Breath.
5. the unlocked by fingerprint method of touch control terminal according to claim 1, which is characterized in that believed according to the fingerprint characteristic
Breath is unlocked certification, comprising:
Obtain the similarity of the fingerprint feature information and preset certification finger print data；
When the similarity is greater than preset similarity threshold, then unlocks certification and pass through.
6. a kind of unlocked by fingerprint device of touch control terminal characterized by comprising
Full screen scanning module is used for when touch control terminal is in screen lock state, to the touch screen emission detection of the touch control terminal
Waveform carries out full screen scanning；
Waveform receiving module returns to waveform for receiving, and obtains waveform variation according to the return waveform and the detection waveform
Information；
Fingerprint extraction module, for obtaining fingerprint feature information according to the waveform extracting change information；
Authentication module is unlocked, for being unlocked certification according to the fingerprint feature information, to described after unlock certification passes through
Touch control terminal is unlocked operation.
7. the unlocked by fingerprint device of touch control terminal according to claim 6, which is characterized in that further include:
Waveform setup module is used in full screen scanning module when touch control terminal is in screen lock state, to the touch control terminal
Before touch screen emission detection waveform carries out full screen scanning, waveform frequency adjustment instruction is received, and refer to according to frequency adjustment
Enable the frequency of setting detection waveform.
8. the unlocked by fingerprint device of touch control terminal according to claim 6, which is characterized in that the waveform change information packet
Include waveform phase change information；The fingerprint extraction module includes:
First extraction unit, for obtaining detection waveform by the depth between finger rebound position according to waveform phase change information
Change information；
Second extraction unit for generating fingerprint image according to the change in depth information, and is extracted according to the fingerprint image
Obtain the fingerprint feature information.
9. the unlocked by fingerprint device of touch control terminal according to claim 6, which is characterized in that the unlock authentication module obtains
The similarity for taking the fingerprint feature information and preset certification finger print data is greater than preset similarity threshold in the similarity
When value, then unlocks certification and pass through.
10. a kind of touch control terminal, which is characterized in that including touch screen, sensor and controller, the sensor is set to described
Touch screen, and the sensor internal is provided with fingerprint recognition matrix, the controller connects the sensor, and the control
Device includes:
Full screen scanning module is used for when touch control terminal is in screen lock state, to the touch screen emission detection of the touch control terminal
Waveform carries out full screen scanning；
Waveform receiving module returns to waveform for receiving, and obtains waveform variation according to the return waveform and the detection waveform
Information；
Fingerprint extraction module, for obtaining fingerprint feature information according to the waveform extracting change information；
Authentication module is unlocked, for being unlocked certification according to the fingerprint feature information, to described after unlock certification passes through
Touch control terminal is unlocked operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710731798.0A CN109426427A (en) | 2017-08-23 | 2017-08-23 | Touch control terminal and its unlocked by fingerprint method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710731798.0A CN109426427A (en) | 2017-08-23 | 2017-08-23 | Touch control terminal and its unlocked by fingerprint method and apparatus |
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| CN109426427A true CN109426427A (en) | 2019-03-05 |
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| CN104156709A (en) * | 2014-08-26 | 2014-11-19 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition detection assembly, terminal device and fingerprint verification method |
| CN106897715A (en) * | 2017-03-31 | 2017-06-27 | 努比亚技术有限公司 | A kind of unlocked by fingerprint processing method and mobile terminal |
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| CN104156709A (en) * | 2014-08-26 | 2014-11-19 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition detection assembly, terminal device and fingerprint verification method |
| CN106897715A (en) * | 2017-03-31 | 2017-06-27 | 努比亚技术有限公司 | A kind of unlocked by fingerprint processing method and mobile terminal |
| CN107025399A (en) * | 2017-04-28 | 2017-08-08 | 广东欧珀移动通信有限公司 | Solve lock control method and Related product |
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