CN113361305B - Fingerprint acquisition method, electronic device and computer readable storage medium - Google Patents
Fingerprint acquisition method, electronic device and computer readable storage medium Download PDFInfo
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- 238000004891 communication Methods 0.000 description 10
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- 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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- G06F3/0412—Digitisers structurally integrated in a display
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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
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The disclosure relates to a fingerprint acquisition method, an electronic device and a computer readable storage medium, wherein the fingerprint acquisition method is applied to the electronic device, the electronic device comprises a display screen, a touch sensor, a processing module, a fingerprint acquisition module and a display parameter configuration module, and the method comprises the following steps: if the touch sensor detects that the finger touches the display screen, reporting a first interrupt message to the processing module, and detecting the contact area of the finger and the display screen at the same time, wherein the first interrupt message is used for waking up the processing module and the display screen; if the touch sensor detects that the contact area exceeds the preset threshold, reporting a second interrupt message to the processing module, wherein the second interrupt message is used for controlling the fingerprint acquisition module to acquire the fingerprint image by the processing module, and if the touch sensor does not detect that the contact area exceeds the preset threshold, not reporting the second interrupt message to the processing module. The embodiment of the disclosure can effectively save the fingerprint acquisition time.
Description
Technical Field
The present disclosure relates to the field of fingerprint technologies, and in particular, to a fingerprint acquisition method, an electronic device, and a computer readable storage medium.
Background
With the progress of technology, biological features are gradually applied to the field of consumer electronics to identify identities, so that the trouble of inputting is avoided. For example, the under-screen fingerprint technology is increasingly widely applied to mobile terminals such as mobile phones.
At present, as shown in fig. 1a, the fingerprint unlocking process under the optical screen is as follows: in step S11, when the finger touches the screen, a touch sensor is awakened. The touch sensor touch is set to a high frame rate mode of operation, where no interruption is reported to prevent false touch. In step S12, the touch sensor waits for a change in contact area. And S13, when the contact area reaches a threshold value, reporting an area interrupt to wake up the processing module. Step S14, the processing module wakes up the touch sensor to perform an initialization process, configures display parameters, draws light spots and performs a fingerprint unlocking process.
The process of configuring display parameters and drawing light spots comprises the following steps: the User Interface (UI) module draws the layer information and sends it to the frame, and the frame processes the display parameter configuration and layer information transfer in the message queue to draw the light spot.
However, in the unlocking process, the time from the detection of the finger to the wake-up of the processing module is long, in addition, the process of configuring the display parameters and drawing the light spot is long, and the unlocking speed is slow.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a fingerprint acquisition method, an electronic device, and a computer-readable storage medium.
According to a first aspect of embodiments of the present disclosure, a fingerprint acquisition method is provided and applied to an electronic device, where the electronic device includes a display screen, a touch sensor, a processing unit, a fingerprint acquisition module, and a display parameter configuration module, and the method includes:
if the touch sensor detects that the finger touches the display screen, reporting a first interrupt message to the processing module, and simultaneously detecting the contact area of the finger and the display screen, wherein the first interrupt message is used for waking up the processing module and the display screen;
if the touch sensor detects that the contact area exceeds a preset threshold value, reporting a second interrupt message to the processing module, wherein the second interrupt message is used for controlling the fingerprint acquisition module to acquire a fingerprint image by the processing module;
and if the touch sensor does not detect that the contact area exceeds the preset threshold, not reporting the second interrupt message to the processing module.
In an embodiment, the method further comprises:
the processing module sends the second interrupt message to the display parameter configuration module and the fingerprint acquisition module;
the display parameter configuration module draws light spots according to the second interrupt message;
and the fingerprint acquisition module acquires fingerprint images according to the second interrupt message and the light spots drawn by the display parameter configuration module.
In an embodiment, the electronic device further comprises a user interface module, and the fingerprint acquisition method further comprises:
the processing module sends the second interrupt message to the user interface module;
the user interface module draws layer information according to the second interrupt message;
the display parameter configuration module draws a light spot according to the second interrupt message, and the display parameter configuration module comprises:
and the display parameter configuration module configures display parameters according to the second interrupt message, and draws the light spots according to the display parameters and the layer information drawn by the user interface module.
In an embodiment, the fingerprint acquisition module includes a fingerprint sensor, and the fingerprint acquisition module acquires fingerprint images according to the second interrupt message and the light spot drawn by the display parameter configuration module, including:
and the fingerprint acquisition module initializes the fingerprint sensor according to the second interrupt message and acquires fingerprint images according to the light spots drawn by the display parameter configuration module.
In an embodiment, after the fingerprint acquisition module acquires the fingerprint image according to the second interrupt message and the light spot drawn by the display parameter configuration module, the method further includes:
and the fingerprint acquisition module is used for matching the acquired fingerprint image with a pre-stored fingerprint image, and if the acquired fingerprint image is matched with the pre-stored fingerprint image, the unlocking operation is executed.
According to a second aspect of embodiments of the present disclosure, there is provided an electronic device including a display screen, the electronic device further including a touch sensor, a central processing unit processing module, a fingerprint acquisition module, and a display parameter configuration module, wherein:
the touch sensor is configured to detect an operation of touching the display screen by a finger, report a first interrupt message to the processing module, and simultaneously detect a contact area between the finger and the display screen, report a second interrupt message to the processing module if the contact area is detected to exceed a preset threshold, and not report the second interrupt message to the processing module if the contact area is not detected to exceed the preset threshold, where the first interrupt message is used to wake up the processing module and the display screen, and the second interrupt message is used to control the fingerprint acquisition module to acquire a fingerprint image by the processing module;
the processing module is used for receiving the first interrupt message sent by the touch sensor, switching to an awake state according to the first interrupt message, receiving the second interrupt message sent by the touch sensor, and sending the second interrupt message to the display parameter configuration module and the fingerprint acquisition module;
the display parameter configuration module is used for drawing light spots according to the second interrupt message;
and the fingerprint acquisition module is used for acquiring fingerprint images according to the second interrupt message and the light spots drawn by the display parameter configuration module.
In an embodiment, the electronic device further comprises a user interface module, wherein:
the processing module is further configured to send the second interrupt message to the user interface module;
the user interface module is used for drawing layer information according to the second interrupt message;
the display parameter configuration module is configured to configure a display parameter according to the second interrupt message, and draw the light spot according to the display parameter and the layer information drawn by the user interface module.
In an embodiment, the fingerprint acquisition module includes a fingerprint sensor, and the fingerprint acquisition module is configured to:
initializing the fingerprint sensor according to the second interrupt message, and collecting fingerprint images according to the light spots drawn by the display parameter configuration module.
In an embodiment, the fingerprint acquisition module is further configured to:
after the fingerprint image is collected according to the second interrupt message and the light spot drawn by the display parameter configuration module, the collected fingerprint image is matched with a pre-stored fingerprint image, and if the collected fingerprint image and the pre-stored fingerprint image are matched, unlocking operation is executed.
According to a third aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the fingerprint acquisition method described above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
the first interrupt message is reported to the processing module, and the contact area between the finger and the display screen is detected at the same time, namely, the operation of reporting the first interrupt message to the processing module and detecting the contact area between the finger and the display screen is executed in parallel, so that the fingerprint acquisition time can be effectively saved, and the second interrupt message is reported to the processing module when the touch sensor detects that the contact area exceeds the preset threshold value, so that the processing module is used for controlling the fingerprint acquisition module to acquire the fingerprint image, and the false touch operation can be prevented.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1a is a conventional fingerprint unlocking flowchart. Fig. 1b is a flowchart illustrating a fingerprint acquisition method according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating another fingerprint acquisition method according to an exemplary embodiment.
FIG. 3 is a scene graph illustrating a fingerprint acquisition method according to an exemplary embodiment.
Fig. 4 is a block diagram of an electronic device, according to an example embodiment.
Fig. 5 is a block diagram of another electronic device, shown in accordance with an exemplary embodiment.
Fig. 6 is a block diagram illustrating an apparatus suitable for use in a fingerprint acquisition method according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
FIG. 1b is a flowchart illustrating a fingerprint acquisition method according to an exemplary embodiment, as shown in FIG. 1b, the fingerprint acquisition method being applicable to an electronic device, the electronic device including a display screen, a touch sensor, a processing module, a fingerprint acquisition module, and a display parameter configuration module, the fingerprint acquisition method comprising the steps of:
in step S101, if the touch sensor detects that the finger touches the display screen, a first interrupt message is reported to the processing module, and a contact area between the finger and the display screen is detected at the same time, where the first interrupt message is used to wake up the processing module and the display screen.
When a finger of a user touches the display screen, the touch sensor can detect the operation of touching the display screen by the finger and report a first interrupt message to the processing module so as to wake up the processing module and the display screen, wherein the first interrupt message can be an air break, and meanwhile, the contact area between the finger and the display screen is detected, namely, the first interrupt message is reported to the processing module and the contact area between the finger and the display screen is detected to be executed in parallel, so that the fingerprint acquisition time can be effectively saved.
In step S102, if the touch sensor detects that the contact area exceeds the preset threshold, a second interrupt message is reported to the processing module, where the second interrupt message is used by the processing module to control the fingerprint acquisition module to acquire a fingerprint.
The preset threshold value can be set according to requirements.
In this embodiment, when the touch sensor detects that the contact area exceeds the preset threshold, a second interrupt message may be reported to the processing module, after the processing module receives the second interrupt message, the processing module sends the second interrupt message to the display parameter configuration module and the fingerprint acquisition module, the display parameter configuration module draws a light spot according to the second interrupt message, and the fingerprint acquisition module acquires a fingerprint image according to the second interrupt message and the light spot drawn by the display parameter configuration module.
In this embodiment, after receiving the second interrupt message, the processing module sends the second interrupt message to the display parameter configuration module and the fingerprint acquisition module, so that the display parameter configuration module and the fingerprint acquisition module cooperate to complete fingerprint acquisition, and false touch operation can be prevented.
Optionally, after the fingerprint acquisition module acquires the fingerprint image, the acquired fingerprint image and the pre-stored fingerprint image may be matched, and if the acquired fingerprint image and the pre-stored fingerprint image are matched, an unlocking operation may be performed. By the method, the fingerprint image is acquired, and the unlocking operation is performed based on the acquired fingerprint image, so that the unlocking time can be effectively saved.
In step S103, if the touch sensor does not detect that the contact area exceeds the preset threshold, a second interrupt message is not reported to the processing module.
According to the fingerprint acquisition method, the first interrupt message is reported to the processing module, and the contact area between the finger and the display screen is detected at the same time, namely, the operations of reporting the first interrupt message to the processing module and detecting the contact area between the finger and the display screen are executed in parallel, so that the fingerprint acquisition time can be effectively saved, and the second interrupt message is reported to the processing module when the touch sensor detects that the contact area exceeds the preset threshold value, so that the processing module can control the fingerprint acquisition module to acquire the fingerprint image, and the false touch operation can be prevented.
FIG. 2 is a flowchart of another fingerprint acquisition method according to an exemplary embodiment, as shown in FIG. 2, the fingerprint acquisition method may be applied to an electronic device, where the electronic device includes a display screen, a touch sensor, a processing module, a fingerprint acquisition module, a user interface module, and a display parameter configuration module, where the display screen is connected to the touch sensor, the touch sensor is connected to the processing module, and the processing module is connected to the fingerprint acquisition module, the user interface module, and the display parameter configuration module, and the fingerprint acquisition method includes the following steps:
in step S201, if the touch sensor detects that the finger touches the display screen, a first interrupt message is reported to the processing module, and a contact area between the finger and the display screen is detected at the same time, where the first interrupt message is used to wake up the processing module and the display screen.
The electronic device may include, but is not limited to, a mobile terminal, such as a mobile phone.
In step S202, if the touch sensor detects that the contact area exceeds the preset threshold, a second interrupt message is reported to the processing module.
In step S203, the processing module sends a second interrupt message to the user interface module, the display parameter configuration module, and the fingerprint acquisition module.
In step S204, the user interface module draws the layer information according to the second interrupt message.
In step S205, the display parameter configuration module configures the display parameter according to the second interrupt message, and draws the light spot according to the display parameter and the layer information drawn by the user interface module.
In step S206, the fingerprint acquisition module acquires a fingerprint image according to the second interrupt message and the light spot drawn by the display parameter configuration module.
The fingerprint acquisition module may include a fingerprint sensor, and in this embodiment, the fingerprint acquisition module initializes the fingerprint sensor according to the second interrupt message and acquires a fingerprint image according to the light spot drawn by the display parameter configuration module.
In the above embodiment, the display parameter configuration module directly configures the display parameters, and draws the light spots according to the display parameters and the layer information drawn by the user interface module, so that the time for drawing the light spots is greatly saved, and further, the acquisition time of the fingerprint image is reduced. The fingerprint unlocking speed which can be improved is found to be about 150ms through multiple detection, the average unlocking speed which is actually measured after optimization reaches 270ms, namely the time spent from the unlocking of the black screen to the complete lighting of the screen is 270ms, and the optical fingerprint unlocking speed is close to the capacitive fingerprint unlocking speed.
In the following, referring to fig. 3 for exemplary illustration of the disclosure, as shown in fig. 3, when a user's finger touches the display screen 311 of the mobile phone 31, a touch sensor located on the display screen 311 may detect an operation of touching the display screen 311 by the finger, and send a first interrupt message to the processing module to wake up the processing module, and simultaneously detect a contact area between the finger and the display screen 311. When the touch sensor detects that the contact area exceeds a preset threshold value, a second interrupt message is reported to the processing module, after the processing module receives the second interrupt message, the second interrupt message is sent to the display parameter configuration module and the fingerprint acquisition module, the display parameter configuration module draws light spots according to the second interrupt message, the fingerprint acquisition module acquires fingerprint images according to the light spots drawn by the second interrupt message and the display parameter configuration module, the acquired fingerprint images are matched with pre-stored fingerprint images, and if the acquired fingerprint images are matched with the pre-stored fingerprint images, unlocking operation can be executed. By the method, fingerprint images are acquired, and unlocking operation is performed based on the acquired fingerprint images, so that unlocking time can be effectively saved, and fingerprint unlocking speed is accelerated.
Corresponding to the fingerprint acquisition method embodiment, the present disclosure also provides an electronic device embodiment.
Fig. 4 is a block diagram of an electronic device including a display screen, as shown in fig. 4, further including a touch sensor 41, a processing module 42, a display parameter configuration module 43, and a fingerprint acquisition module 44, according to an exemplary embodiment, wherein:
the touch sensor 41 is configured to detect an operation of touching the display screen by a finger, report a first interrupt message to the processing module 42, and detect a contact area between the finger and the display screen at the same time, report a second interrupt message to the processing module 42 if the contact area is detected to exceed a preset threshold, and not report the second interrupt message to the processing module 42 if the contact area is not detected to exceed the preset threshold, where the first interrupt message is used to wake up the processing module and the display screen, and the second interrupt message is used by the processing module to control the fingerprint acquisition module to acquire a fingerprint image.
When a finger of a user touches the display screen, the touch sensor can detect the operation of touching the display screen by the finger and report a first interrupt message to the processing module so as to wake up the processing module and the display screen, wherein the first interrupt message can be an air break, and meanwhile, the contact area between the finger and the display screen is detected, namely, the first interrupt message is reported to the processing module and the contact area between the finger and the display screen is detected to be executed in parallel, so that the fingerprint acquisition time can be effectively saved.
The processing module 42 is configured to receive a first interrupt message sent by the touch sensor 41, switch to an awake state according to the first interrupt message, receive a second interrupt message sent by the touch sensor 41, and send the second interrupt message to the display parameter configuration module 43 and the fingerprint acquisition module 44.
The display parameter configuration module 43 is configured to draw the light spot according to the second interrupt message.
The fingerprint acquisition module 44 is configured to acquire fingerprint images according to the second interrupt message and the light spot drawn by the display parameter configuration module 43.
The preset threshold value can be set according to requirements.
In this embodiment, after receiving the second interrupt message, the processing module sends the second interrupt message to the display parameter configuration module and the fingerprint acquisition module, so that the display parameter configuration module and the fingerprint acquisition module cooperate to complete fingerprint acquisition, and false touch operation can be prevented.
Optionally, the fingerprint acquisition module includes a fingerprint sensor, and the fingerprint acquisition module 44 may be configured to: the fingerprint sensor is initialized according to the second interrupt message, and fingerprint images are acquired according to the light spots drawn by the display parameter configuration module 43.
Optionally, the fingerprint acquisition module 44 may also be configured to: after the fingerprint image is acquired, the acquired fingerprint image and the pre-stored fingerprint image can be matched, and if the acquired fingerprint image and the pre-stored fingerprint image are matched, the unlocking operation can be executed. By the method, the fingerprint image is acquired, and the unlocking operation is performed based on the acquired fingerprint image, so that the unlocking time can be effectively saved.
The electronic device shown in fig. 4 is configured to implement the above-described method flow shown in fig. 1, and related descriptions are the same, which is not repeated here.
According to the fingerprint acquisition method, the first interrupt message is reported to the processing module, and the contact area between the finger and the display screen is detected at the same time, namely, the operations of reporting the first interrupt message to the processing module and detecting the contact area between the finger and the display screen are executed in parallel, so that the fingerprint acquisition time can be effectively saved, and the second interrupt message is reported to the processing module when the touch sensor detects that the contact area exceeds the preset threshold value, so that the processing module can control the fingerprint acquisition module to acquire the fingerprint image, and the false touch operation can be prevented.
Fig. 5 is a block diagram of another electronic device according to an exemplary embodiment, as shown in fig. 5, which may further include a user interface module 45 on the basis of the embodiment shown in fig. 4 described above, wherein:
the processing module 42 is further configured to send a second interrupt message to the user interface module 45.
The user interface module 45 is configured to map the layer information according to the second interrupt message.
The display parameter configuration module 43 is configured to configure a display parameter according to the second interrupt message, and draw a light spot according to the display parameter and the layer information drawn by the user interface module 45.
The electronic device shown in fig. 5 is configured to implement the above-mentioned method flow shown in fig. 2, and related descriptions are the same, which is not repeated here.
In the above embodiment, the display parameter configuration module directly configures the display parameters, and draws the light spots according to the display parameters and the layer information drawn by the user interface module, so that the time for drawing the light spots is greatly saved, and further, the acquisition time of the fingerprint image is reduced.
The specific manner in which the respective modules and sub-modules perform the operations in the apparatus of the above embodiments has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Fig. 6 is a block diagram illustrating an apparatus suitable for use in a fingerprint acquisition method according to an exemplary embodiment. For example, apparatus 600 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, aircraft, or the like.
Referring to fig. 6, apparatus 600 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an input/output (I/O) interface 612, a sensor component 614, and a communication component 616.
The processing component 602 generally controls overall operation of the apparatus 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing element 602 may include one or more processors 620 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operations at the device 600. Examples of such data include instructions for any application or method operating on the apparatus 600, contact data, phonebook data, messages, pictures, videos, and the like. The memory 604 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 606 provides power to the various components of the device 600. The power supply components 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 600.
The multimedia component 608 includes a screen between the device 600 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia component 608 includes a front camera and/or a rear camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 600 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 614 includes one or more sensors for providing status assessment of various aspects of the apparatus 600. For example, the sensor assembly 614 may detect the on/off state of the device 600, the relative positioning of the assemblies, such as the display and keypad of the device 600, the sensor assembly 614 may also detect the change in position of the device 600 or one of the assemblies of the device 600, the presence or absence of user contact with the device 600, the orientation or acceleration/deceleration of the device 600, and the change in temperature of the device 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 616 is configured to facilitate communication between the apparatus 600 and other devices in a wired or wireless manner. The device 600 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication part 616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 616 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as memory 604, including instructions executable by processor 620 of apparatus 600 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The fingerprint acquisition method is characterized by being applied to electronic equipment, wherein the electronic equipment comprises a display screen, a touch sensor, a processing module, a fingerprint acquisition module, a display parameter configuration module and a user interface module, and the method comprises the following steps:
if the touch sensor detects that the finger touches the display screen, reporting a first interrupt message to the processing module, and simultaneously detecting the contact area of the finger and the display screen, wherein the first interrupt message is used for waking up the processing module and the display screen;
if the touch sensor detects that the contact area exceeds a preset threshold value, reporting a second interrupt message to the processing module; the processing module sends the second interrupt message to the user interface module, the display parameter configuration module and the fingerprint acquisition module; the user interface module draws layer information according to the second interrupt message; the display parameter configuration module configures display parameters according to the second interrupt message, and draws light spots according to the display parameters and the layer information drawn by the user interface module; the fingerprint acquisition module acquires fingerprint images according to the second interrupt message and the light spots drawn by the display parameter configuration module;
and if the touch sensor does not detect that the contact area exceeds the preset threshold, not reporting the second interrupt message to the processing module.
2. The fingerprint acquisition method according to claim 1, wherein the fingerprint acquisition module includes a fingerprint sensor, and the fingerprint acquisition module acquires fingerprint images from the light spots drawn by the second interrupt message and the display parameter configuration module, including:
and the fingerprint acquisition module initializes the fingerprint sensor according to the second interrupt message and acquires fingerprint images according to the light spots drawn by the display parameter configuration module.
3. The fingerprint acquisition method according to claim 1, wherein after the fingerprint acquisition module acquires the fingerprint image from the light spot drawn by the second interrupt message and the display parameter configuration module, the method further comprises:
and the fingerprint acquisition module is used for matching the acquired fingerprint image with a pre-stored fingerprint image, and if the acquired fingerprint image is matched with the pre-stored fingerprint image, the unlocking operation is executed.
4. The electronic device comprises a display screen, and is characterized by further comprising a touch sensor, a processing module, a fingerprint acquisition module, a display parameter configuration module and a user interface module, wherein:
the touch sensor is configured to detect an operation of touching the display screen by a finger, report a first interrupt message to the processing module, and simultaneously detect a contact area between the finger and the display screen, report a second interrupt message to the processing module if the contact area is detected to exceed a preset threshold, and not report the second interrupt message to the processing module if the contact area is not detected to exceed the preset threshold, where the first interrupt message is used to wake up the processing module and the display screen, and the second interrupt message is used to control the fingerprint acquisition module to acquire a fingerprint image by the processing module;
the processing module is configured to receive the first interrupt message sent by the touch sensor, switch to an awake state according to the first interrupt message, receive the second interrupt message sent by the touch sensor, and send the second interrupt message to the display parameter configuration module, the fingerprint acquisition module, and the user interface module;
the user interface module is used for drawing layer information according to the second interrupt message;
the display parameter configuration module is used for configuring display parameters according to the second interrupt message and drawing light spots according to the display parameters and the layer information drawn by the user interface module;
and the fingerprint acquisition module is used for acquiring fingerprint images according to the second interrupt message and the light spots drawn by the display parameter configuration module.
5. The electronic device of claim 4, wherein the fingerprint acquisition module comprises a fingerprint sensor, the fingerprint acquisition module to:
initializing the fingerprint sensor according to the second interrupt message, and collecting fingerprint images according to the light spots drawn by the display parameter configuration module.
6. The electronic device of claim 4, wherein the fingerprint acquisition module is further configured to:
after the fingerprint image is collected according to the second interrupt message and the light spot drawn by the display parameter configuration module, the collected fingerprint image is matched with a pre-stored fingerprint image, and if the collected fingerprint image and the pre-stored fingerprint image are matched, unlocking operation is executed.
7. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps of the fingerprint acquisition method as claimed in any one of claims 1-3.
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