Fingerprint collection method and device

Abstract

The present disclosure relates to a fingerprint collection method and device. The method solves the problem that the fingerprint collection process is triggered incorrectly, resulting in unnecessary consumption of system resources and reduced security. The method includes: determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with a first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor; calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area; when the first area ratio meets a first ratio condition, performing fingerprint collection.

Description

Technical Field

[0001] The present disclosure relates to fingerprint recognition technology, and in particular to a fingerprint collection method and device. Background Art

[0002] After experiencing the evolution of scratch-type and press-type (capacitive) fingerprint recognition solutions, high-end devices are gradually adopting under-display fingerprint solutions. Optical under-display fingerprint solutions require activating high-bandwidth memory (HBM) and illuminating the screen to capture the fingerprint image. If the fingerprint unlocking process is triggered by an accidental touch, it can cause display issues and generate additional power consumption.

[0003] At the same time, some users' palm lines are similar to fingerprint lines, which may cause them to be mistakenly locked by the palm when holding the phone.

[0004] In summary, the under-screen fingerprint solution has the possibility of false triggering, which consumes unnecessary system resources and reduces security. Summary of the Invention

[0005] To overcome the problems existing in the related art, the present disclosure provides a fingerprint collection method and device.

[0006] According to a first aspect of an embodiment of the present disclosure, a fingerprint collection method is provided, comprising:

[0007] Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0008] Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0009] When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0010] Preferably, before the step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area, the method further includes:

[0011] detecting whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection;

[0012] In a case where it is detected that the pressing operation is the screen activation operation, a step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area is performed.

[0013] Preferably, the step of detecting whether the pressing operation is a screen activation operation includes:

[0014] Detecting a third area ratio of the area of the screen where a press operation occurs on the screen to the area of the entire pressable area of the screen in the locked state;

[0015] When the third area ratio reaches a third ratio condition, the pressing operation is determined to be a screen activation operation.

[0016] Preferably, before the step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area, the method further includes:

[0017] Determine a second overlapping area where the screen area where the pressing operation occurs overlaps with the second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area, and the second fingerprint collection area covers part of the pressable area of the screen;

[0018] Calculating a second area ratio of the second overlapping area to the area of the second fingerprint collection area;

[0019] When the second area ratio reaches a second ratio condition, a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area is performed.

[0020] According to a second aspect of an embodiment of the present disclosure, a fingerprint collection device is provided, comprising:

[0021] a first overlap determination module, configured to determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0022] a first ratio calculation module, configured to calculate a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0023] The fingerprint collection execution module is configured to execute fingerprint collection when the first area ratio satisfies a first ratio condition.

[0024] Preferably, the device further comprises:

[0025] an activation operation detection module, configured to detect whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection;

[0026] The screen activation module is configured to, when detecting that the pressing operation is the screen activation operation, cause the first overlap determination module to execute a step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area.

[0027] Preferably, the activation operation detection module includes:

[0028] a press detection unit, configured to detect a third area ratio of an area of a screen region where a press operation occurs on the screen to an area of the entire pressable area of the screen in a locked state;

[0029] The operation confirmation unit is configured to determine that the pressing operation is a screen activation operation when the third area ratio reaches a third ratio condition.

[0030] Preferably, the device further comprises:

[0031] a second overlap determination module, configured to determine a second overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area, and the second fingerprint collection area covers part of the pressable area of the screen;

[0032] a second ratio calculation module, configured to calculate a second area ratio of the second overlapping area to the area of the second fingerprint collection area;

[0033] The fingerprint collection control module is configured to, when the second area ratio reaches a second ratio condition, execute a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area.

[0034] According to a third aspect of an embodiment of the present disclosure, there is provided a fingerprint collection device, comprising:

[0035] processor;

[0036] a memory for storing processor-executable instructions;

[0037] Wherein, the processor is configured to:

[0038] Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0039] Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0040] When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0041] According to a fourth aspect of an embodiment of the present disclosure, a non-transitory computer-readable storage medium is provided. When instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal is enabled to perform a fingerprint collection method, the method comprising:

[0042] Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0043] Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0044] When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0045] The technical solutions provided by the embodiments of the present disclosure can achieve the following beneficial effects: by calculating and comparing the pressed area, the fingerprint collection process is controlled, the nature of the pressed area is analyzed and judged, and the occurrence of accidental touches is effectively avoided. The solution is simple and easy to implement, and the system resource usage is low. This solves the problem of the fingerprint collection process being triggered accidentally, which causes unnecessary consumption of system resources and reduces security, and realizes an energy-saving and efficient fingerprint collection startup method.

[0046] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] 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.

[0048] Figure 1 This is a diagram of the palm base position that can trigger palm base line misinterpretation lock.

[0049] Figure 2 The figure is a flow chart showing a fingerprint collection method according to an exemplary embodiment.

[0050] Figure 3A The figure is a flow chart showing a fingerprint collection method according to an exemplary embodiment.

[0051] Figure 3B yes Figure 3A Flowchart of an exemplary implementation of step 201 in FIG.

[0052] Figure 4 This is an exemplary relative position diagram of the first fingerprint collection area and the second fingerprint collection area.

[0053] Figure 5 The figure is a block diagram of a fingerprint collection device according to an exemplary embodiment.

[0054] Figure 6 yes Figure 5 An exemplary structural block diagram of the activation operation detection module 504.

[0055] Figure 7 It is a block diagram of a device according to an exemplary embodiment. DETAILED DESCRIPTION

[0056] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0057] In related technologies, a phone's fingerprint unlocking process is typically triggered when both a touch signal and a pressure signal are simultaneously met. Optical under-screen fingerprint solutions require activating high-bandwidth memory (HBM) and illuminating the screen to capture the fingerprint image. If the fingerprint unlocking process is triggered by an accidental touch, such as when the user is placing the phone in their pocket, it can cause display issues and generate additional power consumption.

[0058] At the same time, some users' palm lines are similar to fingerprint lines, such as Figure 1 The position shown is the base of the palm, which often comes into contact with the fingerprint unlocking area when holding the phone. This can lead to an accidental touch triggering the fingerprint unlocking process, which can then mistakenly capture a palm print image that looks similar to the fingerprint to complete the unlocking process. This is the problem of the phone being mistakenly unlocked by the palm print.

[0059] In summary, the under-screen fingerprint solution has the possibility of false triggering, which consumes unnecessary system resources and reduces security.

[0060] To address the above issues, embodiments of the present invention provide a fingerprint collection method and device. By determining the area and location of the screen press, it is determined whether a need to unlock the screen has actually occurred, and then whether to activate the fingerprint collection process. This solves the problem of erroneous triggering of the fingerprint collection process, which consumes unnecessary system resources and reduces security, and achieves an energy-efficient and efficient fingerprint collection startup method.

[0061] An embodiment of the present invention provides a fingerprint collection method, and the specific process of using the method to manage fingerprint recognition (for example, unlocking a terminal or application APP through fingerprint recognition) is as follows: Figure 2 Shown, including:

[0062] Step 101: Determine a first overlapping area where a screen area where a press operation occurs overlaps with a first fingerprint collection area, wherein the first fingerprint collection area refers to a screen area that can be scanned by the under-screen fingerprint sensor;

[0063] In this step, the first fingerprint collection area may be the area of the light spot used to achieve fingerprint collection.

[0064] In this step, the first overlapping area is the area of the screen where the pressing operation occurs that falls within the first fingerprint collection area. Optionally, a pressure sensor array is provided under the screen. When the user presses the screen (touch operation), the pressure sensor will sense the pressure signal. The system can determine the position of the sensor that detected the pressure signal, and then locate the position and area where the pressing operation occurred.

[0065] Optionally, a pressure sensor may be arranged below the first fingerprint collection area and specially marked. When the specially marked pressure sensor detects a pressure signal, the position of the sensor generating the pressure signal is determined, thereby directly determining the first overlapping area.

[0066] Step 102: Calculate a first area ratio of the first overlapping area to the first fingerprint collection area;

[0067] Step 103: When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0068] In the above steps, the first ratio condition can be obtained through a large number of experimental collections, wherein the purpose of the test is to determine the first area ratio that is more common (occurs more frequently) when the user touch operation has the fingerprint collection requirement. Preferably, the first area ratio reaches 70%. Among them, the setting of the first area ratio can be set when the terminal leaves the factory, or the terminal can collect user usage habits during the user's use process, and based on the user's usage habits (for example, users of different age groups may have different probabilities of operating errors, and the elderly may be more likely to make accidental touches; or, after the user has used the terminal for a certain period of time, he or she will be more adapted to the current model and the probability of accidental touches will be reduced), the first area ratio is appropriately adjusted.

[0069] The above embodiment controls the fingerprint collection process by calculating and comparing the pressed area, analyzing and determining the nature of the pressed area, and effectively preventing accidental touches. This solution is simple, easy to implement, and minimizes system resource usage. It addresses the issue of accidental triggering of the fingerprint collection process, which consumes unnecessary system resources and reduces security, and achieves an energy-efficient and efficient fingerprint collection startup method.

[0070] Another embodiment of the present invention provides a fingerprint collection method, which uses the method to manage fingerprint recognition (for example, to unlock a terminal or application APP through fingerprint recognition). Figure 3A Shown, including:

[0071] Step 201: Detect whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to put the screen into a state capable of performing fingerprint collection.

[0072] The state in which the screen is capable of performing fingerprint collection may refer to the preparation stage before activating the under-screen fingerprint sensor for fingerprint collection, for example, the state in which the under-screen fingerprint sensor is ready to be powered on, or the state in which the light source for fingerprint collection is ready to be turned on.

[0073] Optionally, this step can be performed by Figure 3B The method shown in FIG. 1 includes steps 301-302, which are as follows:

[0074] Step 301: Detect a third area ratio of the area of the screen region where a press operation occurs on the screen to the area of the entire pressable area of the screen in a locked state.

[0075] In this step, when the screen is detected to be pressed, a pressure sensor array disposed below the screen can detect the occurrence of a touch signal and / or a pressure signal, and calculate the area of the screen region where the press operation occurred. A third area ratio of this area to the area of the entire pressable screen region is then calculated.

[0076] The pressable area of the screen refers to the area on the screen where a user press operation can be detected.

[0077] Step 302: When the third area ratio reaches a third ratio condition, determine that the pressing operation is a screen activation operation.

[0078] In this step, preferably, the third ratio condition is that the pressed area is smaller than the large area threshold.

[0079] In this embodiment of the present invention, a large area threshold can be pre-set. When a user intentionally turns on the screen or unlocks the device, they typically don't press across the entire screen, but rather focus on one or a few smaller areas. Therefore, by setting this large area threshold, if the area of press exceeds this threshold, it is determined that this is not a normal unlock operation, and that a false press is likely to have occurred.

[0080] The large-area threshold can be adjusted according to the specific situation of the user. For example, in the settings, the user can be guided to simulate multiple accidental palm touches and presses on the screen, and a suitable value can be calculated as the large-area threshold. A fixed value or a fixed range can also be built into the system.

[0081] In this step, when the third area ratio does not meet the third ratio condition, it indicates that the pressing area is not abnormally large, and it may be a normal attempt to activate the fingerprint collection process. The pressing operation is determined to be a screen activation operation.

[0082] When the pressed area is greater than or equal to the large area threshold, it indicates that a false touch has occurred, and it is determined that there is no need to activate the screen for fingerprint collection.

[0083] Step 202: Determine whether the pressing operation is the screen activation operation.

[0084] In this embodiment of the present invention, after determining that the press operation is a screen activation operation, further determination can be made as to whether to activate the under-screen fingerprint sensor to collect fingerprint images. This determination can be made first for the second fingerprint collection area, followed by the first fingerprint collection area; or the process can proceed directly to step 206 to perform the first fingerprint collection area determination.

[0085] Step 203: Determine a second overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the second fingerprint collection area.

[0086] In the embodiment of the present invention, the second fingerprint collection area completely covers the first fingerprint collection area, and the second fingerprint collection area covers part of the pressable area of the screen.

[0087] In the embodiment of the present invention, a first fingerprint collection area and a second fingerprint collection area are provided on the screen. Figure 4 As shown, the first fingerprint collection area is placed in the second fingerprint collection area and is smaller in area than the first fingerprint collection area. An under-screen fingerprint sensor is set below the first fingerprint collection area for collecting fingerprints. The area of the second fingerprint collection area is larger than the maximum area of the screen that can be collected by the under-screen fingerprint sensor.

[0088] Step 204: Calculate a second area ratio of the second overlapping area to the area of the second fingerprint collection area.

[0089] When the screen area where the pressing operation occurs has no intersection with the second fingerprint collection area, the value of the second area ratio is determined to be 0.

[0090] Step 205: When the second area ratio reaches a second ratio condition, a step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area is performed.

[0091] In an embodiment of the present invention, the second ratio condition may include an effective press ratio threshold (preferably approximately 50%). When the area of the area where a press operation occurs in the second fingerprint collection area reaches the effective press ratio threshold, the second area ratio is determined to meet the second ratio condition. Because the second fingerprint collection area is larger than the first fingerprint collection area, it is possible that the press falls on the second fingerprint collection area but does not fall on the first fingerprint collection area, or only a small portion of the press falls on the second fingerprint collection area. In this case, even if the user intends to perform a fingerprint collection operation, the probability of fingerprint collection failure is very high. At this time, activating the under-screen fingerprint sensor to scan the fingerprint image is meaningless and will result in unnecessary power consumption.

[0092] According to the detection results, if the second area ratio reaches the second ratio condition, it indicates that the press may have been valid on the second fingerprint collection area, and it is necessary to continue to judge the press situation on the first fingerprint collection area. Otherwise, it indicates that the press is not related to the fingerprint collection operation, and the operation is ignored, and the fingerprint collection process is stopped.

[0093] Step 206: Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area.

[0094] In the embodiment of the present invention, the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor.

[0095] Step 207: Calculate a first area ratio of the first overlapping area to the area of the first fingerprint collection area.

[0096] In the implementation of the present invention, when the area where the pressing operation occurs does not overlap with the first fingerprint collection area, the value of the first area ratio is determined to be 0.

[0097] Step 208: When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0098] In the embodiment of the present invention, the first ratio condition includes a fingerprint collectible area threshold (preferably about 70%). When the first area ratio reaches the fingerprint collectible area threshold, it is considered that the first area ratio meets the first ratio condition, indicating that the press is likely to be made on the fingerprint collection area and the user has the intention to activate the fingerprint collection process. Based on this, the fingerprint collection process can be started.

[0099] If the first area ratio does not meet the first ratio condition, a false touch is determined to have occurred. This not only avoids activating the under-screen fingerprint sensor when the probability of capturing a fingerprint image is low to save power, but also avoids situations such as fingerprint capture being activated when no finger is pressed on the fingerprint capture area, and collecting residual fingerprints before causing false lock.

[0100] An embodiment of the present invention further provides a fingerprint collection device, the structure of which is as follows: Figure 5 Shown, including:

[0101] A first overlap determination module 501 is configured to determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0102] A first ratio calculation module 502 is configured to calculate a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0103] The fingerprint collection execution module 503 is configured to execute fingerprint collection when the first area ratio meets a first ratio condition.

[0104] Preferably, the device further comprises:

[0105] an activation operation detection module 504, configured to detect whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection;

[0106] The screen activation module 505 is configured to, when detecting that the pressing operation is the screen activation operation, cause the first overlap determination module to execute a step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area.

[0107] Preferably, the structure of the activation operation detection module 504 is as follows: Figure 6 Shown, including:

[0108] A press detection unit 601 is configured to detect a third area ratio of an area of the screen region where a press operation occurs to an area of the entire pressable area of the screen in a locked state;

[0109] The operation confirmation unit 602 is configured to determine that the pressing operation is a screen activation operation when the third area ratio reaches a third ratio condition.

[0110] Preferably, the device further comprises:

[0111] A second overlap determination module 506 is configured to determine a second overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area and the second fingerprint collection area covers part of the pressable area of the screen;

[0112] A second ratio calculation module 507 is configured to calculate a second area ratio of the second overlapping area to the area of the second fingerprint collection area;

[0113] The fingerprint collection control module 508 is configured to, when the second area ratio reaches a second ratio condition, execute a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area.

[0114] An embodiment of the present invention further provides a computer device, comprising:

[0115] processor;

[0116] a memory for storing processor-executable instructions;

[0117] Wherein, the processor is configured to:

[0118] Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0119] Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0120] When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0121] Figure 7 FIG2 is a block diagram of an apparatus 700 for preventing accidental touches according to an exemplary embodiment. For example, the apparatus 700 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0122] Reference Figure 7, apparatus 700 may include one or more of the following components: a processing component 702 , a memory 704 , a power component 706 , a multimedia component 708 , an audio component 710 , an input / output (I / O) interface 712 , a sensor component 714 , and a communication component 716 .

[0123] The processing component 702 generally controls the overall operation of the device 700, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 702 may include one or more processors 720 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 702 may include one or more modules to facilitate interaction between the processing component 702 and other components. For example, the processing component 702 may include a multimedia module to facilitate interaction between the multimedia component 708 and the processing component 702.

[0124] The memory 704 is configured to store various types of data to support operations on the device 700. Examples of such data include instructions for any application or method operating on the device 700, contact data, phone book data, messages, pictures, videos, etc. The memory 704 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, 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 disk, or optical disk.

[0125] The power component 706 provides power to the various components of the device 700. The power component 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 700.

[0126] The multimedia component 708 includes a screen that provides an output interface between the device 700 and the user. 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 can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 708 includes a front camera and / or a rear camera. When the device 700 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0127] The audio component 710 is configured to output and / or input audio signals. For example, the audio component 710 includes a microphone (MIC), which is configured to receive external audio signals when the device 700 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 704 or transmitted via the communication component 716. In some embodiments, the audio component 710 also includes a speaker for outputting audio signals.

[0128] I / O interface 712 provides an interface between processing component 702 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0129] The sensor assembly 714 includes one or more sensors for providing various aspects of the status assessment of the device 700. For example, the sensor assembly 714 can detect the open / closed state of the device 700, the relative positioning of components, such as the display and keypad of the device 700. The sensor assembly 714 can also detect changes in the position of the device 700 or a component of the device 700, the presence or absence of user contact with the device 700, the orientation or acceleration / deceleration of the device 700, and temperature changes of the device 700. The sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 714 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0130] The communication component 716 is configured to facilitate wired or wireless communication between the device 700 and other devices. The device 700 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 716 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0131] In an exemplary embodiment, the apparatus 700 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 components to perform the above-described method.

[0132] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 704 including instructions, and the instructions can be executed by the processor 720 of the apparatus 700 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0133] A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor of a mobile terminal, enables the mobile terminal to perform a fingerprint collection method, the method comprising:

[0134] Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor;

[0135] Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area;

[0136] When the first area ratio meets a first ratio condition, fingerprint collection is performed.

[0137] The embodiments of the present invention provide a fingerprint collection method and device. First, a first overlapping area where the screen area where a pressing operation occurs on the screen overlaps with a first fingerprint collection area is determined, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor; then, a first area ratio of the first overlapping area to the area of the first fingerprint collection area is calculated, and when the first area ratio meets the first ratio condition, fingerprint collection is performed. By calculating and comparing the pressing area, the nature of the pressing is analyzed and judged, and then the fingerprint collection process is controlled, effectively avoiding the occurrence of false touches. The solution is simple, easy to implement, and occupies low system resources. It solves the problem that the false triggering of the fingerprint collection process causes unnecessary consumption of system resources and reduces security, and realizes an energy-saving and efficient fingerprint collection startup method.

[0138] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0139] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A fingerprint collection method, characterized in that: include: Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor; Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area; When the first area ratio meets a first ratio condition, performing fingerprint collection; Before the step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, the method further includes: detecting whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection; When detecting that the pressing operation is the screen activation operation, determining a second overlapping area where the screen area where the pressing operation occurs overlaps with a second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area, and the second fingerprint collection area covers a portion of the pressable area of the screen; Calculating a second area ratio of the second overlapping area to the area of the second fingerprint collection area; When the second area ratio reaches a second ratio condition, a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area is performed.

2. The fingerprint collection method according to claim 1, characterized in that: The step of detecting whether the pressing operation is a screen activation operation includes: detecting a third area ratio of an area of the screen region where a press operation occurs to an area of the entire pressable area of the screen; When the third area ratio reaches a third ratio condition, the pressing operation is determined to be a screen activation operation.

3. A fingerprint collection device, characterized in that: include: a first overlap determination module, configured to determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor; a first ratio calculation module, configured to calculate a first area ratio of the first overlapping area to the area of the first fingerprint collection area; a fingerprint collection execution module, configured to execute fingerprint collection when the first area ratio satisfies a first ratio condition; The device further comprises: an activation operation detection module, configured to detect whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection; a screen activation module, configured to, upon detecting that the pressing operation is the screen activation operation, cause a second overlap determination module to determine a second overlapping area where the screen area where the pressing operation occurs overlaps with a second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area, and the second fingerprint collection area covers a portion of the pressable area of the screen; a second ratio calculation module, configured to calculate a second area ratio of the second overlapping area to the area of the second fingerprint collection area; The fingerprint collection control module is configured to, when the second area ratio reaches a second ratio condition, enable the first overlap determination module to execute a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area.

4. The fingerprint collection device according to claim 3, characterized in that: The activation operation detection module includes: a press detection unit, configured to detect a third area ratio of an area of a screen region where a press operation occurs on the screen to an area of the entire pressable area of the screen in a locked state; The operation confirmation unit is configured to determine that the pressing operation is a screen activation operation when the third area ratio reaches a third ratio condition.

5. A fingerprint collection device, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor; Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area; When the first area ratio meets a first ratio condition, performing fingerprint collection; Before the step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, the method further includes: detecting whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection; When detecting that the pressing operation is the screen activation operation, determining a second overlapping area where the screen area where the pressing operation occurs overlaps with a second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area, and the second fingerprint collection area covers a portion of the pressable area of the screen; Calculating a second area ratio of the second overlapping area to the area of the second fingerprint collection area; When the second area ratio reaches a second ratio condition, a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area is performed.

6. A non-transitory computer-readable storage medium, which, when instructions in the storage medium are executed by a processor of a mobile terminal, enables the mobile terminal to perform a fingerprint collection method, the method comprising: Determine a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, wherein the first fingerprint collection area refers to the screen area that can be scanned by the under-screen fingerprint sensor; Calculating a first area ratio of the first overlapping area to the area of the first fingerprint collection area; When the first area ratio meets a first ratio condition, performing fingerprint collection; Before the step of determining a first overlapping area where the screen area where the pressing operation occurs overlaps with the first fingerprint collection area, the method further includes: detecting whether the pressing operation is a screen activation operation, wherein the screen activation operation is used to enable the screen to enter a state capable of performing fingerprint collection; When detecting that the pressing operation is the screen activation operation, determining a second overlapping area where the screen area where the pressing operation occurs overlaps with a second fingerprint collection area, wherein the second fingerprint collection area fully covers the first fingerprint collection area, and the second fingerprint collection area covers a portion of the pressable area of the screen; Calculating a second area ratio of the second overlapping area to the area of the second fingerprint collection area; When the second area ratio reaches a second ratio condition, a step of determining a first overlapping area where the screen area where the pressing operation occurs on the screen overlaps with the first fingerprint collection area is performed.

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