CN115617191A

CN115617191A - Touch anomaly suppression method, electronic device and storage medium

Info

Publication number: CN115617191A
Application number: CN202210644137.5A
Authority: CN
Inventors: 韩帅
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-01-17

Abstract

The embodiment of the application provides a touch abnormal suppression method, electronic equipment and a storage medium, wherein the method is applied to the electronic equipment and comprises the following steps: detecting a fingerprint event during a touch event; acquiring a first position corresponding to a fingerprint event; acquiring a second position corresponding to the touch event; performing cross validation on the first position and the second position to obtain a first abnormal touch point and a valid touch point; and clearing the first abnormal touch point, and generating a new touch event based on the effective touch point to respond to the touch operation of the user. According to the method, whether the touch event is operated by the user can be further determined after the touch event is detected, specifically, the position of the fingerprint event and the position of the touch event can be subjected to cross validation to screen out a first abnormal touch point and an effective touch point, so that the first abnormal touch point is cleared, a new touch event is generated based on the effective touch point to respond to the touch operation of the user, the influence of the abnormal point reporting condition on the use of the user can be reduced, and the user experience is improved.

Description

Touch anomaly suppression method, electronic device and storage medium

Technical Field

The present disclosure relates to the field of touch technologies, and in particular, to a method for suppressing a touch anomaly, an electronic device, and a storage medium.

Background

With the continuous development of communication technology, electronic devices such as mobile phones and tablet computers are increasingly popularized in daily life of people. The electronic equipment is provided with a plurality of touch control devices, and further can provide corresponding human-computer interaction functions. The Touch device may include a Touch Panel (TP) capable of detecting a Touch position, a fingerprint identifier capable of identifying a fingerprint, and the like.

At present, the coordinates are obtained through the volume value change when the touch of the electronic device generates the input action, wherein when the volume value change of the corresponding position of the screen meets the threshold value of reporting points, the reporting points are generated, namely, the corresponding input action. Illustratively, when a user wants to start the disturbance-free mode, the user clicks the disturbance-free control displayed on the screen of the mobile phone, and then the volume value change of the corresponding position of the disturbance-free control meets the threshold of reporting points, so as to generate reporting points, that is, triggering the click event of the corresponding disturbance-free control.

However, the capacity variation is influenced by the environmental temperature and humidity, human operation, and device quality. Fig. 1 is a schematic diagram of an abnormal report point of a screen of an electronic device, and is shown in fig. 1, a user finger click position P1 is a disturbance-free control displayed on a mobile phone screen, and based on a click operation of the user, a report point should be generated at the P1 position of the screen to trigger a click event of the corresponding disturbance-free control, however, under the influence of other factors, the volume value changes of the P2 position and the P3 position on the screen also meet a report point threshold value, and a report point is generated, so that the abnormal report point condition (i.e., a ghost hand problem occurs), which causes a touch response error, a screen bounce, an application automatic opening problem, and other problems, and affects user experience.

Disclosure of Invention

The embodiment of the application provides a touch abnormal suppression method, electronic equipment and a storage medium, and the influence of abnormal report conditions on the use of a user is reduced.

In a first aspect, an embodiment of the present application provides a method for suppressing a touch anomaly, which is applied to an electronic device, and includes: detecting a fingerprint event during the touch event; acquiring a first position corresponding to a fingerprint event; acquiring a second position corresponding to the touch event; performing cross validation on the first position and the second position to obtain a first abnormal touch point and a valid touch point; and clearing the first abnormal touch point, and generating a new touch event based on the effective touch point to respond to the touch operation of the user. According to the method, whether the touch event is operated by the user can be further determined after the touch event is detected, specifically, the position of the fingerprint event and the position of the touch event can be subjected to cross validation to screen out a first abnormal touch point and an effective touch point, so that the first abnormal touch point is cleared, a new touch event is generated based on the effective touch point to respond to the touch operation of the user, the influence of the abnormal point reporting condition on the use of the user can be reduced, and the user experience is improved.

Further, before detecting a fingerprint event during a touch event, the method further includes: determining whether a fingerprint event is detected during the touch event; in the process of the touch event, if the fingerprint event is not detected, the touch point corresponding to the touch event is determined to be a second abnormal touch point, and the second abnormal touch point is cleared. And determining whether the touch event is triggered by the manual operation of the user by determining whether the fingerprint event is detected in the touch event process, judging that the touch event is not triggered by the manual operation of the user if the fingerprint event is not detected in the touch event process according to the detection result, determining the touch point of the touch event as a second abnormal touch point, and clearing the second abnormal touch point.

Further, clearing the second abnormal touch point includes: a forced baseline calibration is performed to reset the capacitance value detected at the second anomalous touch point. In the embodiment of the application, a touch point is generated (i.e., it is considered that a touch event is detected) by determining that a capacitance value change of a touch screen of an electronic device satisfies a touch point threshold. Further, in a case that it is determined that the touch point in the touch event is not generated by the user's manual operation, a corresponding step of forced baseline (baseline) calibration may be performed to reset the capacitance value detected at the second abnormal touch point, so as to solve the problem of the currently existing touch abnormality (i.e., eliminate the ghost problem).

Further, acquiring the first location corresponding to the fingerprint event comprises: and determining a first position corresponding to the fingerprint event according to the echo time of the ultrasonic fingerprint identifier.

Further, the ultrasonic fingerprint recognizer comprises an ultrasonic transducer arranged in an array; determining a first location corresponding to a fingerprint event based on the echo time of the ultrasonic fingerprint identifier comprises: screening out a target ultrasonic transducer of which the echo time is not more than a first time threshold; and determining a first position corresponding to the fingerprint event according to the arrangement position of the target ultrasonic transducer.

In one embodiment, an ultrasonic fingerprint recognizer may be included in the electronic device, and a fingerprint of the user is detected by the ultrasonic fingerprint recognizer, and also, by means of ultrasonic detection, echo time is determined after the echo is received, and a target echo time, an ultrasonic transmission time corresponding to a contact area of a finger of the user and a screen of the electronic device, is screened out from the echo time. Because each ultrasonic wave is sent out through a corresponding ultrasonic transducer in the ultrasonic transducer matrix array of the touch screen of the electronic equipment, the position of the ultrasonic transducer for acquiring the target echo time can be further determined, and the first position corresponding to the fingerprint event is further determined.

Further, the acquiring the second position corresponding to the touch event includes: acquiring capacitance value change information of a screen of the electronic equipment; and determining a position in the capacitance value change which meets the threshold value of the reporting point as a second position. In one embodiment, an electronic device may include a touch sensor to detect a change in capacitance of a touch screen through the touch sensor and generate a touch point when the change in capacitance satisfies a touch point threshold. The second location corresponding to the touch event can thus be determined from the detection data of the touch sensor.

Further, cross-verifying the first position and the second position to obtain a first abnormal touch point and a valid touch point includes: calculating the overlapping rate of the first position and the second position respectively; determining a touch point corresponding to the overlapping rate smaller than a first overlapping threshold value as a first abnormal touch point; determining a touch point corresponding to the overlapping rate not less than the second overlapping threshold value as an effective touch point; wherein the second overlap threshold is greater than the first overlap threshold. In order to reduce the influence of the existence of touch abnormal point positions (namely, the ghost problem) on the user experience, the overlapping rate of the fingerprint events, the position information and the position information of the touch events is calculated, so that whether each touch event is manually operated by the user is determined, the touch points meeting the corresponding overlapping rate are determined as effective touch points, and the touch points which do not meet the corresponding overlapping rate and are not manually operated by the user are determined as abnormal touch points.

Further, the clearing the first abnormal touch point and the generating a new touch event based on the effective touch point in response to the touch operation of the user comprises: and reporting the position of the effective touch point in the touch event to an application processor so as to respond to the touch operation of the user. When a fingerprint event is detected in the touch event process, it indicates that there is a touch event caused by the human operation behavior of the user at present, and in this case, the step of forced baseline calibration cannot be executed, so as to avoid the failure of other touch operations of the user. Further, only the position of the effective touch point in the touch event is reported to the application processor to respond to the touch operation of the user. By the method, the ghost hand problem existing in the first abnormal touch point is eliminated, and the influence of the ghost hand problem on the user experience is reduced.

In a second aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a processor and a memory, and the memory is configured to store at least one instruction, and the instruction is loaded and executed by the processor to implement the method for suppressing touch anomaly provided in the first aspect.

In a third aspect, an embodiment of the present application further provides a computer storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method for suppressing touch anomaly provided in the first aspect is implemented.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a diagram illustrating an abnormal report on a screen of an electronic device;

fig. 2 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present application;

FIGS. 3a to 3c are schematic diagrams illustrating abnormal report types;

fig. 4 is a schematic flowchart illustrating a method for suppressing abnormal touch according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a captured fingerprint according to an embodiment of the present application;

FIG. 6 is a schematic diagram of an embodiment of the present application providing ultrasonic fingerprint identification;

FIG. 7 is a schematic diagram of a user's finger spacing relative to a screen provided by an embodiment of the present application;

FIG. 8 is a schematic diagram illustrating a capacitance change of a partial area of a touch screen according to an embodiment of the present application;

FIG. 9 is a schematic diagram of an abnormal touch point meeting a threshold of a hit point;

FIG. 10 is a schematic diagram of a first location corresponding to a fingerprint event according to an embodiment of the present application;

FIG. 11 is a diagram illustrating a second position corresponding to a touch event according to an embodiment of the present application;

fig. 12 is a schematic diagram illustrating an abnormal touch point recognition result according to an embodiment of the present application;

fig. 13 is a flowchart of a method for suppressing abnormal touch according to another embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The electronic device mentioned in the embodiment of the present application is a touch device (i.e. a capacitive touch device) using a projected capacitive technology, and the electronic device may be a mobile phone, a Tablet computer (Tablet), a notebook computer (Laptop), a camera, a video camera, a projection device, a Personal Digital Assistant (PDA), an electronic reader, a wearable device (e.g. a smart watch, a smart glasses, etc.), a Virtual Reality device (e.g. an Augmented Reality (AR) device, a Virtual Reality (VR) device), etc.

Fig. 2 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application. Referring to fig. 2, the electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a display screen 194, and the like. Wherein the sensor module 180 may include a pressure sensor 180A, a fingerprint sensor 180H, a touch sensor 180K, etc.

It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), among others. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus including a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, etc., respectively, through different I2C bus interfaces. For example: the processor 110 may be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through an I2C bus interface to implement a touch function of the electronic device 100.

The I2S interface may be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 through an I2S bus to enable communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit the audio signal to the wireless communication module 160 through the I2S interface, so as to implement a function of receiving a call through a bluetooth headset.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled by a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to implement a function of answering a call through a bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 with the wireless communication module 160. For example: the processor 110 communicates with a bluetooth module in the wireless communication module 160 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 170 may transmit the audio signal to the wireless communication module 160 through a UART interface, so as to implement the function of playing music through a bluetooth headset.

A MIPI interface may be used to connect processor 110 with peripheral devices such as display screen 194. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. In some embodiments, processor 110 and display screen 194 communicate via a DSI interface to implement display functionality of electronic device 100.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 110 with the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, an MIPI interface, and the like.

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, and may also be used to transmit data between the electronic device 100 and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

It should be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only an illustration, and does not limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive charging input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives the input of the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may also be disposed in the same device.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves via the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of electronic device 100 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that electronic device 100 can communicate with networks and other devices through wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), general Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The electronic device 100 implements display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The electronic device 100 may implement a photographing function through the ISP, the video codec, the GPU, the display screen 194, and the application processor, etc.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor, which processes input information quickly by referring to a biological neural network structure, for example, by referring to a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent recognition of the electronic device 100 can be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (such as audio data, phone book, etc.) created during use of the electronic device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 executes various functional applications of the electronic device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The electronic device 100 may implement audio functions via the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone interface 170D, and the application processor. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The electronic apparatus 100 can listen to music through the speaker 170A or listen to a handsfree call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the electronic apparatus 100 receives a call or voice information, it is possible to receive voice by placing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking near the microphone 170C through the mouth. The electronic device 100 may be provided with at least one microphone 170C. In other embodiments, the electronic device 100 may be provided with two microphones 170C to achieve a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 100 may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and perform directional recording.

The earphone interface 170D is used to connect a wired earphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association) standard interface of the USA.

The pressure sensor 180A is used for sensing a pressure signal, and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A can be of a variety of types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a sensor comprising at least two parallel plates having an electrically conductive material. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 194, the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic apparatus 100 may also calculate the touched position from the detection signal of the pressure sensor 180A. In some embodiments, the touch operations that are applied to the same touch position but different touch operation intensities may correspond to different operation instructions. For example: and when the touch operation with the touch operation intensity smaller than the first pressure threshold value acts on the short message application icon, executing an instruction for viewing the short message. And when the touch operation with the touch operation intensity larger than or equal to the first pressure threshold value acts on the short message application icon, executing an instruction of newly building the short message.

The fingerprint sensor 180H is used to collect a fingerprint. The electronic device 100 can utilize the collected fingerprint characteristics to unlock the fingerprint, access the application lock, photograph the fingerprint, answer an incoming call with the fingerprint, and so on.

The touch sensor 180K is also called a "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided through the display screen 194. In other embodiments, the touch sensor 180K may be disposed on a surface of the electronic device 100, different from the position of the display screen 194.

In some embodiments, the touch screen (formed by the touch sensor 180K and the display screen 194) may collect touch information of the user and transmit the collected touch information to other devices, for example, the processor 110 (e.g., an application processor). The touch information may include touch point coordinates, the touch screen determines the type of touch time by sending the touch point coordinates to the processor 110, for example, a current user watches a video with a mobile phone, the touch screen acquires touch information of the user, specifically acquires the touch point coordinates of the user, and sends the touch point coordinates to the processor 110, the processor 110 identifies the position where a "speed doubling" control of the video App is located according to the received touch point coordinates, and then determines that the type of a touch event is "switching video playing speed doubling", and thus the event may be triggered to respond to a touch operation of the user.

In some embodiments, the fingerprint sensor 180H may capture a fingerprint in a touch event. In other words, when the user touches any position of the touch screen of the electronic device 100 and generates a touch event, the fingerprint sensor 180H may acquire the fingerprint of the user.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The electronic apparatus 100 may receive a key input, and generate a key signal input related to user setting and function control of the electronic apparatus 100.

In a possible implementation manner, the touch screen of the electronic device provided by the embodiment of the application has a touch sensing area, which is exemplarily the entire display area of the touch screen of the electronic device. There is a sensing structure in the touch-sensing area that includes a number of drive electrodes and a number of sense electrodes.

In some embodiments, the driving electrodes and the sensing electrodes of the touch screen of the electronic device are distributed in a matrix form, the driving electrodes and the sensing electrodes are distributed in a cross manner with an X axis (horizontal direction) and a Y axis (vertical direction) which are perpendicular to each other as a capacitance matrix, when a user finger touches the screen, changes of capacitance of a touch position are detected through scanning of the X axis and the Y axis, and then the touch position of the finger is calculated, and the calculated touch position of the finger is exemplarily a coordinate position.

In one embodiment, when a user's finger touches the touch screen of the electronic device, a capacitance change is caused, which causes a change in the voltage and charge amount detected by the electronic device's electrical measurement circuitry, and the processor 110 of the electronic device can confirm the touch event by the detected voltage or charge change. The processor 110 of the electronic device may sequentially input a driving signal to each driving electrode, when all the driving electrodes scan once, the processor 110 controls the driving electrodes to enter a next detection period after the detection period is completed, so as to implement periodic cycle detection. The sensing electrodes are used for receiving signals sent by the driving electrodes, and then the touch screen can detect the capacitance values of the intersection points of all the transverse driving electrodes and the longitudinal sensing electrodes (namely, all mutual capacitances formed between the X axis and the Y axis). When a user finger touches the screen, the finger in a contact state is equivalent to one electrode on the Y axis, the electric field at the position is changed, so that the touch point area or the capacitance of the finger is changed, and the coordinate of the position where the user finger touches the screen is determined by determining the horizontal and vertical coordinates of the position where the capacitance is changed. In other embodiments, the touch detection may be performed by a self-capacitance detection method, which is not limited herein.

In some embodiments, in a touch event, the fingerprint sensor 180H may detect a fingerprint of the user and may also determine a location of the fingerprint relative to the touch screen, which may be specifically a coordinate location, based on the fingerprint detection information.

In one embodiment, the fingerprint sensor 180H may be an ultrasonic fingerprint recognizer that may determine the fingerprint information of the user by transmitting ultrasonic waves. Specifically, ultrasonic waves are transmitted by the ultrasonic fingerprint identifier, the ultrasonic waves return when contacting an obstacle (such as a user's finger), and the ultrasonic fingerprint identifier is capable of receiving echoes and determining the receiving time.

In an implementation manner, a touch screen of an electronic device provided in an embodiment of the present application may be configured with an ultrasonic transducer matrix array, where an ultrasonic transducer in the ultrasonic transducer matrix array generates a mechanical vibration to generate an ultrasonic pulse (pulse) under excitation of an electric pulse, and the ultrasonic pulse is partially reflected or scattered back by a propagation medium (e.g., a finger) during a propagation process. Furthermore, when ultrasonic reflection occurs, the ultrasonic transducer can acquire echo time. Each ultrasonic wave is sent out through a corresponding ultrasonic transducer in an ultrasonic transducer matrix array of the electronic equipment touch screen, and then the position of the ultrasonic transducer for acquiring the target echo time can be determined. In an embodiment, a time threshold may be set for screening for a target echo time that is a travel time that is not greater than the first time threshold. And then screening out a target ultrasonic transducer with the echo time not greater than a first time threshold, and determining a first position corresponding to the fingerprint event according to the arrangement position of the target ultrasonic transducer.

Due to the fact that the lines of the finger are uneven, the actual distances between the concave part and the convex part of the lines and the screen are different, the ultrasonic wave transmission speed of the ultrasonic wave transmitted by the ultrasonic fingerprint identifier is the same, the time required for reaching the concave part and the convex part of the lines is different, correspondingly, the time required for returning echoes at the concave part and the convex part to the ultrasonic fingerprint identifier is different, and the echo time between the concave part and the ultrasonic fingerprint identifier is longer than the corresponding echo time at the convex part. Because the electronic device provided by the embodiment of the application supports full-screen fingerprint identification, full-screen ultrasonic detection information can be obtained, and the ultrasonic detection information can include echo time. The echo time may include a first echo time, a second echo time, and a third echo time, where the first echo time and the second echo time are echo times of a finger contact area (i.e., a target echo time), the third echo time is an echo time of a non-contact area, the first echo time and the second echo time are both not greater than a first time threshold, and the third echo time is greater than the first time threshold. Furthermore, the first echo time is the echo time corresponding to the reflection of the concave part of the finger texture, and the second echo time is the echo time corresponding to the reflection of the convex part of the finger texture. The first echo time is greater than a second time threshold and not greater than the first time threshold, and the second echo time is not greater than the second time threshold. The ultrasonic fingerprint identifier can confirm that the area corresponding to the first echo time and/or the second echo time is the user finger touch area according to the collected echo time, wherein the coordinate position of the user finger touch area can be confirmed based on the horizontal and vertical coordinates of the area corresponding to the first echo time and/or the second echo time, namely, a target ultrasonic transducer with the echo time not greater than a first time threshold value is screened out, and a first position corresponding to a fingerprint event is determined according to the arrangement position of the target ultrasonic transducer.

The screen of the electronic equipment may have abnormal reporting due to the influence of factors such as environment temperature and humidity, manual operation, device quality and the like. Fig. 3a to 3c are schematic diagrams illustrating the types of abnormal report points, and referring to fig. 3a to 3c, the abnormal report points (i.e. ghost problems) can be represented by the fixed row/column ghost shown in fig. 3a, the full-screen random ghost shown in fig. 3b, and the fixed position shown in fig. 3c without missing ghost.

In order to overcome the above ghost hand problem, an embodiment of the present application provides a method for suppressing a touch anomaly, and fig. 4 is a schematic flow diagram of the method for suppressing a touch anomaly according to an embodiment of the present application. Referring to fig. 4, the method may include the steps of:

step 401: the fingerprint recognizer detects a fingerprint event during a touch event.

The electronic device 100 provided by the embodiment of the application supports a full-screen fingerprint detection function. If the fingerprint recognizer of the electronic device 100 detects a fingerprint, for example, as shown in fig. 5, the fingerprint recognizer detects a fingerprint on a touch screen of the electronic device, it is determined that there is a human operation behavior in the electronic device 100 at present, and it may be further determined whether each touch event is a human operation behavior of the user. Further, step 402 and step 403 may be performed separately, and in one embodiment, step 402 and step 403 may be started simultaneously.

Step 402: the processor acquires a first position corresponding to the fingerprint event.

In one implementation, the electronic device provided by the embodiment of the application is provided with the ultrasonic fingerprint recognizer. Fig. 6 is a schematic diagram for providing an ultrasonic identification fingerprint according to an embodiment of the present application, and as shown in fig. 6, when a user finger touches a touch screen of the electronic device 100, an ultrasonic wave emitted by an ultrasonic fingerprint identifier is reflected or scattered after contacting the user finger, and after receiving a reflected or scattered echo, the ultrasonic fingerprint identifier can determine an echo time, where the echo time is a time taken for the ultrasonic wave to be emitted by an ultrasonic wave emitting end, scattered and returned to be received by an ultrasonic wave receiving end. As shown in fig. 6, the ultrasonic transceiver units 61 of the ultrasonic fingerprint identifier are arranged in a matrix array on one of the planes of the touch screen. In some embodiments, the ultrasonic transceiver unit 61 may be an ultrasonic transducer, and the ultrasonic transducer generates mechanical vibration to generate an ultrasonic pulse (pulse) under excitation of the electric pulse, and the ultrasonic pulse is partially reflected or scattered back by a propagation medium (such as a finger) during propagation. Furthermore, when ultrasonic reflection occurs, the ultrasonic transducer can acquire echo time. And then the position of the ultrasonic transducer at the time of acquiring the target echo can be determined. Fig. 7 is a schematic diagram of a distance between a user's finger and a screen according to an embodiment of the present application, and referring to fig. 7, a fingerprint of the finger is uneven, actual distances between a concave portion and a convex portion of the fingerprint are different from each other, propagation speeds of ultrasonic waves emitted by an ultrasonic fingerprint identifier are the same, and time required for reaching the concave portion and the convex portion of the fingerprint are different from each other, where echo time between the concave portion and the ultrasonic fingerprint identifier is longer than corresponding echo time of the convex portion. In one embodiment, a time threshold may be set for screening for a target echo time that is a travel time that is not greater than the first time threshold. And then screening out a target ultrasonic transducer with the echo time not greater than a first time threshold, and determining a first position corresponding to the fingerprint event according to the arrangement position of the target ultrasonic transducer.

In another embodiment, the echo time may be divided into a plurality of types, for example, the echo time may include a first echo time, a second echo time, and a third echo time, wherein the first echo time and the second echo time are echo times of the finger contact region (i.e., target echo time), the third echo time is echo time of the non-contact region, the first echo time and the second echo time are not greater than a first time threshold, and the third echo time is greater than the first time threshold. Furthermore, the first echo time is the echo time corresponding to the reflection of the concave part of the finger texture, and the second echo time is the echo time corresponding to the reflection of the convex part of the finger texture. The first echo time is greater than a second time threshold and not greater than the first time threshold, and the second echo time is not greater than the second time threshold.

In one embodiment, a first target ultrasonic transducer corresponding to the first echo time may be screened out, and a first position corresponding to the fingerprint event may be determined according to the arrangement position of the first target ultrasonic transducer.

In another embodiment, a second target ultrasonic transducer corresponding to the second echo time may be screened out, and then the first position corresponding to the fingerprint event may be determined according to the arrangement position of the second target ultrasonic transducer.

Step 403: the processor acquires a second position corresponding to the touch event.

In one embodiment, the electronic device provided by the embodiment of the present application is configured with the touch sensor 180K, and the touch sensor 180K and the display screen 194 may form a touch screen. When a user touches the touch screen of the electronic device 100, the touch point coordinates of the user may be detected, and then the touch point coordinates may be sent to the application processor to respond to the touch operation of the user.

In some embodiments, whether a touch event occurs may be determined based on a change in capacitance on the touch screen. Fig. 8 is a schematic diagram of a capacitance change condition of a partial area of a touch screen according to an embodiment of the present application, and as shown in fig. 8, when the capacitance change condition of the touch screen can be determined according to sensing information of a touch sensor 180K, due to a preset touch threshold, and then when the capacitance change condition meets the touch threshold, a corresponding touch event is generated, and the touch screen needs to send a touch coordinate corresponding to the touch event to an application processor to respond to a touch operation.

Fig. 9 is a schematic diagram of an abnormal touch point meeting a threshold, as shown in fig. 9, due to the influence of some factors (for example, there is a water drop on the screen or the electronic device is currently in a charging state), when there is no user operation at some positions of the touch screen, the capacitance change condition of the position also meets the threshold, and a touch event, that is, a ghost problem, is also generated. In order to reduce the influence of the ghost problem on the user experience, the ghost problem needs to be correspondingly suppressed. Specifically, the suppression effect can be achieved by the following steps:

step 404: and the processor performs cross validation on the first position and the second position to obtain a first abnormal touch point and a valid touch point.

Step 405: the processor clears the first abnormal touch point, generates a new touch event based on the effective touch point, and responds to the touch operation of the user.

Fig. 10 is a schematic diagram of a first position corresponding to a fingerprint event according to an embodiment of the present application, and fig. 11 is a schematic diagram of a second position corresponding to a touch event according to an embodiment of the present application, and with reference to fig. 10 and 11, after confirming the first position corresponding to the fingerprint event and the second position corresponding to the touch event, it is further confirmed whether a touch point corresponding to the touch event is an abnormal touch point, in other words, whether a ghost problem exists in the touch event. Specifically, the first position and the second position may be cross-verified, the overlapping rate of the first position and the second position is calculated, and whether the calculated overlapping rate meets the set condition is determined, so as to determine whether the ghost problem exists. In the method, a plurality of touch events can be detected in one detection period, and then the first position corresponding to the fingerprint event and the second position of each touch event can be respectively subjected to cross verification to determine whether a ghost problem exists.

In one embodiment, if the calculated touch point corresponding to the overlap ratio smaller than the first overlap threshold (y%) is determined as the first abnormal touch point, and if the calculated touch point corresponding to the overlap ratio not smaller than the second overlap threshold (x%) is determined as the valid touch point. Fig. 12 is a schematic diagram of an abnormal touch point identification result according to an embodiment of the present application, as shown in fig. 12, four touch events are detected in one detection period, and four touch points (i.e., coordinate positions) corresponding to the four touch events are correspondingly determined. A fingerprint event is also detected during the touch event and a second location (coordinate location) corresponding to the fingerprint event is identified. Further, the coordinate position of the fingerprint event is compared with the coordinate positions of the four touch points respectively, so that the overlapping rate of the fingerprint position and the touch point position is calculated, according to the calculation result, the overlapping rate of only one touch point in the four touch points and the fingerprint position is not less than x%, the touch point is determined to be a valid touch point, the overlapping rate of the rest three touch points and the fingerprint position is less than y%, the three touch points are determined to be abnormal touch points, and the problem of ghost hands exists in the three touch point positions. In order to inhibit the ghost hand problem, the touch screen can give up processing the touch events corresponding to the three abnormal touch points, namely, only the position coordinates of the effective touch points are sent to the application processor to respond to the touch operation of the user, the existing ghost hand problem is inhibited, and the influence of the ghost hand problem on the user experience is reduced.

If the abnormal touch point is not detected based on the cross validation, namely the touch point corresponding to the touch event is a valid touch point, the coordinate position of the valid touch point is sent to the application processor so as to respond to the touch operation of the user.

In some embodiments, there is also a case where a touch event is detected by the touch sensor 180K of the touch screen, but no fingerprint event is detected by the fingerprint sensor 180H of the touch screen in the corresponding detection period, and based on this case, the present embodiment provides the following way to perform ghost suppression:

fig. 13 is a flowchart of a method for suppressing touch anomaly according to another embodiment of the present application, and referring to fig. 13, the method for suppressing touch anomaly is described with reference to a driving layer, a hardware layer, and an algorithm layer, where a fingerprint identification chip in the hardware layer invokes a corresponding interface to implement fingerprint identification driving in the driving layer, specifically, whether a fingerprint event currently exists may be determined through the fingerprint identification driving, and in one implementation, whether a fingerprint event currently exists may be determined by reading a corresponding flag bit, exemplarily, if the current flag bit is 0, it indicates that a fingerprint event is detected, and if the current flag bit is 1, it indicates that a fingerprint event is not detected, and then the touch driving may transmit flag bit information corresponding to the fingerprint event to the touch chip. If the flag bit information received by the touch chip is that a fingerprint event is detected, ghost suppression can be performed based on the embodiment provided in fig. 4, which is not described herein again. If the flag bit information received by the touch chip indicates that no fingerprint event is detected, and touch detection is performed through touch driving, and a touch event is detected, ghost suppression is performed through the following steps shown in fig. 13:

step 1301: it is determined whether a fingerprint event is detected during the touch event, if no fingerprint event is detected, step 1302 is executed, and if a fingerprint event is detected, steps 401 to 405 of the embodiment shown in fig. 4 are executed.

Step 1302: and clearing the touch events corresponding to all the second abnormal touch points.

In the process of a touch event, if a fingerprint event is not detected, it is determined that a touch point corresponding to the touch event is a second abnormal touch point, and when the fingerprint event is not detected and the touch event occurs, it may be determined that the touch event is not triggered by a user through manual operation, and the occurred touch event belongs to a ghost problem. In another mode, the method may be the same as the method for clearing the first abnormal touch point, that is, the method abandons processing of the touch event corresponding to the second abnormal touch point, and cancels sending of the coordinate position of the second abnormal touch point to the application processor, so as to achieve the effect of clearing the ghost hand.

The embodiment of the present application further provides an electronic device, which may include a processor and a memory, where the memory is configured to store at least one instruction, and the instruction is loaded and executed by the processor to implement the method for suppressing the touch anomaly provided in any embodiment of the present application.

The embodiment of the present application further provides a computer storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for suppressing the touch anomaly provided in any embodiment of the present application is implemented.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or in the form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A touch abnormal suppression method is applied to electronic equipment and is characterized by comprising the following steps:

detecting a fingerprint event during the touch event;

acquiring a first position corresponding to the fingerprint event;

acquiring a second position corresponding to the touch event;

performing cross validation on the first position and the second position to obtain a first abnormal touch point and a valid touch point; and

and clearing the first abnormal touch point, and generating a new touch event based on the effective touch point to respond to the touch operation of the user.

2. The method of claim 1, wherein prior to detecting a fingerprint event during a touch event, further comprising:

determining whether a fingerprint event is detected during the touch event;

in the process of the touch event, if the fingerprint event is not detected, determining that the touch points corresponding to the touch event are second abnormal touch points, and clearing the second abnormal touch points.

3. The method of claim 2, wherein the clearing the second outlier touch point comprises: performing a forced baseline calibration to reset capacitance values detected at the second anomalous touch points.

4. The method of claim 1, wherein the obtaining the first location corresponding to the fingerprint event comprises:

and determining a first position corresponding to the fingerprint event according to the echo time of the ultrasonic fingerprint identifier.

5. The method of claim 4, wherein the ultrasonic fingerprint identifier comprises an array of ultrasonic transducers;

the determining a first location corresponding to the fingerprint event according to the echo time of the ultrasonic fingerprint identifier comprises:

screening out a target ultrasonic transducer with the echo time not greater than a first time threshold; and

and determining a first position corresponding to the fingerprint event according to the arrangement position of the target ultrasonic transducer.

6. The method of claim 1, wherein the obtaining the second location corresponding to the touch event comprises:

acquiring capacitance value change information of a screen of the electronic equipment; and

and determining the position which meets a threshold value of the report point in the capacitance value change as the second position.

7. The method of claim 1, wherein cross-validating the first location with the second location to obtain a first outlier touch point and a valid touch point comprises:

respectively calculating the overlapping rate of the first position and the second position;

determining a touch point corresponding to the overlapping rate smaller than a first overlapping threshold value as a first abnormal touch point; and

determining a touch point corresponding to the overlapping rate not less than a second overlapping threshold as the effective touch point;

wherein the second overlap threshold is greater than the first overlap threshold.

8. The method of claim 7, wherein the clearing the first outlier touch point and generating a new touch event based on the valid touch point in response to a user's touch operation comprises:

and reporting the position of the effective touch point in the touch event to an application processor so as to respond to the touch operation of a user.

9. An electronic device, comprising:

a processor and a memory for storing at least one instruction which is loaded and executed by the processor to implement the method of touch anomaly suppression as claimed in any one of claims 1 to 6.

10. A computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of suppressing touch anomalies according to any one of claims 1-6.