WO2020024087A1 - Procédé de travail d'un appareil à commande tactile et terminal - Google Patents

Procédé de travail d'un appareil à commande tactile et terminal Download PDF

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Publication number
WO2020024087A1
WO2020024087A1 PCT/CN2018/097702 CN2018097702W WO2020024087A1 WO 2020024087 A1 WO2020024087 A1 WO 2020024087A1 CN 2018097702 W CN2018097702 W CN 2018097702W WO 2020024087 A1 WO2020024087 A1 WO 2020024087A1
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WO
WIPO (PCT)
Prior art keywords
touch screen
working
fingerprint reader
working mode
touch
Prior art date
Application number
PCT/CN2018/097702
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English (en)
Chinese (zh)
Inventor
李童杰
张君勇
蔡伟纲
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201880093440.2A priority Critical patent/CN112119390A/zh
Priority to PCT/CN2018/097702 priority patent/WO2020024087A1/fr
Publication of WO2020024087A1 publication Critical patent/WO2020024087A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a working method and a terminal of a touch device.
  • the terminal has various touch module functions, which can provide human-computer interaction functions.
  • the electromagnetic interference (EMI) between the mold components becomes more prominent.
  • the mold components included in the terminal usually include a touch panel (TP) capable of detecting a touch position, a fingerprint reader capable of identifying a fingerprint pattern, and the like.
  • the touch screen can use capacitive or pressure recognition technology
  • the fingerprint reader can use optical imaging, ultrasonic reflection, semiconductor capacitance change and other recognition technologies.
  • the operating frequency of a touch screen is a certain frequency between 100kHz and 400kHz
  • the operating frequency of a fingerprint reader is a certain frequency between 200-350kHz.
  • a working method and a terminal of a touch device provided in the present application can reduce interference between different module components in the terminal and improve the user experience of the terminal.
  • an embodiment of the present application provides a working method of a touch device, which is applied to a terminal including a fingerprint reader and a touch screen.
  • the touch screen includes a touch sensor and a display screen. The method includes:
  • the fingerprint reader detects the user's touch operation; the fingerprint reader determines the working mode of the fingerprint reader according to the user's touch operation; if the working mode of the fingerprint reader is a preset working mode, the touch screen enables frequency hopping or increases the strength of the working signal Working mode; if the touch screen detects that the interference signal meets the preset conditions, the touch sensor in the touch screen jumps the frequency or increases the strength of the working signal.
  • the touch screen only starts the frequency hopping or the working mode of increasing the working signal strength when it is determined that the fingerprint reader is in a preset working mode. Then, after determining that the detected interference signal satisfies a preset condition, the touch sensor of the touch screen frequency-hops or increases the intensity of the working signal, thereby reducing the interference between the fingerprint reader and the touch screen.
  • the preset working mode includes: the fingerprint reader is in a legal unlocking working mode, or the fingerprint reader is in a terminal unlocking working mode; wherein the fingerprint reader is in a legal unlocking working mode refers to a terminal
  • the fingerprint reader collects the user's fingerprint, and the user's fingerprint verification is successful, the fingerprint reader notifies the terminal to work in the unlocked mode; where the fingerprint reader is in the terminal's unlocked mode, it means the terminal is in In the unlocked state, the fingerprint reader detects the user's click, double-click, long-press, or slide operation.
  • the fingerprint reader and the touch screen can be considered to be working. At this time, if the user notifies the touch of the fingerprint reader and the touch screen, This may cause mutual interference between the two mold assemblies. Therefore, the touch screen needs to enable the frequency hopping or increase the working signal strength to reduce the mutual interference between the two module components and avoid abnormalities in the terminal.
  • the terminal may not be turned on (or Off) Working mode for frequency hopping or increasing the working signal strength.
  • the fingerprint reader when the fingerprint reader is in a dormant state, the fingerprint reader may be considered to be in a non-working state.
  • the touch screen does not turn on (or turn off) frequency hopping or a working mode that increases the strength of the working signal.
  • the touch screen may be considered as a non-working state.
  • the touch screen may not enable (or close) the frequency hopping or the working mode of increasing the working signal strength. It can be seen that the embodiments of the present application reduce the time for the touch screen to start the frequency hopping or increase the working signal strength of the working mode, and reduce the time for the touch screen to periodically query the results of the interference signal and determine whether the interference signal meets the preset conditions, which is beneficial to saving the terminal ’s Power consumption improves the response speed of the touch screen.
  • the preset condition is that the frequency of the interference signal is a sensitive frequency of the touch sensor in the touch screen, and the intensity of the interference signal reaches a threshold; wherein the sensitive frequency of the touch sensor is a base frequency of the touch sensor's working signal or Odd harmonic frequencies between m and n times, where m is greater than 0 and less than 1, and n is greater than 1 and less than 2.
  • the preset conditions include that the frequency of the interference signal is within a sensitive frequency range of the operating frequency of the touch screen (that is, the frequency of the interference signal is close to the operating frequency of the touch screen), and the intensity of the interference signal reaches a certain threshold. This is because the interference signal is located in the sensitive interval of the touch screen's operating frequency, which will affect the work of the touch screen. The intensity of the interference signal reaches a certain threshold, which will cause the touch screen to work abnormally.
  • the sensitive frequency range of the touch screen is an interval near a fundamental frequency or an odd harmonic of a touch screen operating signal, and may be, for example, between 0.9 and 1.1 times the touch screen operating frequency.
  • the working mode of the fingerprint reader is a preset working mode
  • the working mode of enabling frequency hopping or increasing the working signal strength of the touch screen is specifically:
  • the fingerprint reader determines that the working mode of the fingerprint reader is a preset working mode, the fingerprint reader sends a first message to the touch screen, and the first information is used to notify the touch screen to start the frequency hopping or increase the working signal strength of the working mode; Frequency or increase the working signal strength of the working mode.
  • the fingerprint reader sends the first information to the touch screen, and the first information is used to notify the touch screen to start frequency hopping or to increase the working signal strength.
  • the working mode is specifically:
  • the fingerprint identifier sends the first information to the touch screen through the processor, and the first information is used to notify the touch screen to start the frequency hopping or increase the working signal strength of the working mode.
  • the processor may be an application processor or a chip-level system (SOC).
  • SOC chip-level system
  • the processor here may also be other hardware that has a communication connection with the touch screen and the fingerprint reader, respectively.
  • the working mode of the fingerprint reader is a preset working mode
  • the working mode of enabling frequency hopping or increasing the working signal strength of the touch screen is further specifically:
  • the fingerprint reader sends second information to the processor, the second information is the working mode including the fingerprint reader; the processor determines the working mode of the fingerprint reader as the preset working mode according to the second information, and sends the third information to the touch screen
  • the third information is used to notify the touch screen to enable the frequency hopping or increase the working signal strength of the working mode; the touch screen to enable the frequency hopping or increase the working signal strength of the working mode.
  • the working mode of the fingerprint reader is a preset working mode
  • the working mode of enabling frequency hopping or increasing the working signal strength of the touch screen is further specifically:
  • the fingerprint reader sends fourth information to the touch screen, the fourth information includes the working mode of the fingerprint reader; the touch screen determines the working mode of the fingerprint reader as the preset working mode according to the fourth information; the touch screen enables frequency hopping or increases the strength of the working signal. Operating mode.
  • the fingerprint reader sends fourth information to the touch screen, and the fourth information includes a working mode of the fingerprint reader, specifically:
  • the fingerprint identifier sends fourth information to the touch screen through the processor, and the fourth information includes a working mode of the fingerprint identifier.
  • the processor may be an application processor or a chip-level system (SOC).
  • SOC chip-level system
  • the processor here may also be other hardware that has a communication connection with the touch screen and the fingerprint reader, respectively.
  • the working mode of the fingerprint reader is a preset working mode
  • the working mode of enabling frequency hopping or increasing the working signal strength of the touch screen is further specifically:
  • the touch screen starts to detect interference signals, and starts a frequency hopping or working mode of increasing the strength of the working signal.
  • the touch screen may start to detect interference signals when the terminal is turned on, or may start to detect interference signals when the terminal is in a bright screen state.
  • the touch screen may also start detecting the interference signal after receiving the first information sent by the fingerprint identifier to the touch screen.
  • the fingerprint reader may notify the touch screen to start detecting the interference signal when it determines that the fingerprint reader is in the legal unlocking work mode or in any of the work modes in the unlocked state of the touch screen according to its own work mode. It may also be that the fingerprint reader sends its own working mode to the touch screen, and the touch screen determines whether to detect the interference signal.
  • the touch screen If it is determined that the fingerprint reader is in a legal unlocking working mode, or in any working mode in an unlocked state, the touch screen starts to detect interference signals. In this way, the time for the touch screen to detect the interference signal is also relatively small, which is beneficial to further reducing the power consumption of the terminal.
  • the second mode component can simultaneously enable detection of interference signals, and enable frequency hopping or increase the working signal strength of the working mode. You can also enable the working mode of detecting the interference signal, and then enable the frequency hopping or increase the working signal strength.
  • an embodiment of the present application further provides a working method of a touch device, which is applied to a terminal including a fingerprint reader and a touch screen.
  • the method includes:
  • the fingerprint reader detects the user's touch operation; the fingerprint reader determines the working mode of the fingerprint reader according to the user's touch operation; if the working mode of the fingerprint reader is a preset working mode, the touch screen enables frequency hopping or increases the strength of the working signal If the touch screen detects that the interference signal meets the preset conditions, the touch screen sends the first information to the fingerprint reader; the first information is used to instruct the fingerprint reader to frequency hop or reduce the strength of the working signal; the fingerprint reader frequency hops or reduces Working signal strength.
  • the preset working mode includes: the fingerprint reader is in a legal unlocking working mode, or the fingerprint reader is in a terminal unlocking working mode; wherein the fingerprint reader is in a legal unlocking working mode refers to a terminal In the lock screen state, the fingerprint reader collects the user's fingerprint, and the user's fingerprint verification is successful.
  • the fingerprint reader indicates the working mode of the terminal unlocking.
  • the working mode of the fingerprint reader in the terminal unlocking mode means that the terminal is in the In the unlocked state, the fingerprint reader detects the user's click, double-click, long-press, or slide operation.
  • the preset condition is that the frequency of the interference signal is a sensitive frequency of the touch screen, and the intensity of the interference signal reaches a threshold value; wherein, the sensitive frequency of the touch screen is a fundamental frequency or an odd harmonic of the touch screen working signal. Frequency between m times and n times, where m is greater than 0 and less than 1, and n is greater than 1 and less than 2.
  • the touch screen if the touch screen detects that the interference signal meets a preset condition, the touch screen sends the first information to the fingerprint reader, specifically:
  • the touch screen If the touch screen detects that the interference signal meets a preset condition, the touch screen sends first information to the fingerprint reader through the processor, and the first information is used to instruct the fingerprint reader to hop frequency or reduce the strength of the working signal.
  • the processor may be an application processor or a chip-level system (SOC).
  • SOC chip-level system
  • the processor here may also be other hardware that has a communication connection with the touch screen and the fingerprint reader, respectively.
  • an embodiment of the present application further provides a method for operating a touch device, which is applied to a terminal including a fingerprint reader and a touch screen.
  • the touch screen includes a touch sensor and a display screen. The method includes:
  • the touch screen is in a working state, and the touch screen detects a user's touch operation.
  • the touch screen is in a working state including: the touch screen receives an unlock instruction or the touch screen is in an unlocked state; the touch screen starts a frequency hopping or a working mode of increasing the working signal strength; If the signal meets the preset conditions, the touch sensor in the touch screen will hop frequency or increase the working signal strength.
  • an embodiment of the present application further provides a working method of a touch device, which is applied to a terminal including a fingerprint reader and a touch screen.
  • the method includes:
  • the touch screen is in a working state, and the touch screen detects a user's touch operation.
  • the touch screen is in a working state including: the touch screen receives an unlock instruction or the touch screen is in an unlocked state; the touch screen starts a frequency hopping or a working mode of increasing the working signal strength; if interference is detected If the signal meets a preset condition, the touch screen sends first information to the fingerprint reader; the first information is used to instruct the fingerprint reader to hop frequency or reduce the strength of the working signal; the fingerprint reader frequency hops or reduce the strength of the working signal.
  • the touch screen sends the first information to the fingerprint reader;
  • the first information used to instruct the fingerprint reader to hop frequency or reduce the strength of the working signal may specifically be:
  • the touch screen sends first information to the fingerprint reader through the processor; the first information is used to instruct the fingerprint reader to hop frequency or reduce the strength of the working signal.
  • a terminal in a fifth aspect, includes a fingerprint reader and a touch screen, and the touch screen includes a touch sensor and a display screen; a fingerprint reader is used to detect a user's touch operation; a fingerprint reader is further used to determine the user's touch operation The working mode of the fingerprint reader; the touch screen is used to enable the frequency hopping or increase the working signal strength if the working mode of the fingerprint reader is the preset working mode; the touch sensor in the touch screen is used if the touch screen detects interference If the signal meets the preset conditions, frequency hopping or increase the working signal strength.
  • the preset working mode includes: the fingerprint reader is in a legal unlocking working mode, or the fingerprint reader is in a terminal unlocking working mode; wherein the fingerprint reader is in a legal unlocking working mode refers to a terminal
  • the fingerprint reader collects the user's fingerprint, and the user's fingerprint verification is successful, the fingerprint reader notifies the terminal to work in the unlocked mode; where the fingerprint reader is in the terminal's unlocked mode, it means the terminal is in In the unlocked state, the fingerprint reader detects the user's click, double-click, long-press, or slide operation.
  • the preset condition is that the frequency of the interference signal is a sensitive frequency of the touch sensor in the touch screen, and the intensity of the interference signal reaches a threshold; wherein the sensitive frequency of the touch sensor is a base frequency of the touch sensor's working signal or Odd harmonic frequencies between m and n times, where m is greater than 0 and less than 1, and n is greater than 1 and less than 2.
  • the terminal specifically performs the following operations:
  • the fingerprint reader determines that the working mode of the fingerprint reader is a preset working mode, the fingerprint reader sends a first message to the touch screen, and the first information is used to notify the touch screen to start the frequency hopping or increase the working signal strength of the working mode; Frequency or increase the working signal strength of the working mode.
  • the terminal further includes a processor; and a fingerprint reader, which is specifically configured to send the first information to the touch screen through the processor, and the first information is used to notify the touch screen to start frequency hopping or to improve work signal strength. mode.
  • the terminal further includes a processor.
  • the working mode of the fingerprint reader is a preset working mode
  • the touch screen starts frequency hopping or the working mode of improving the working signal strength.
  • Third information the third information is used to notify the touch screen to enable the frequency hopping or increase the working signal strength of the working mode; the touch screen to enable the frequency hopping or increase the working signal strength of the working mode.
  • the terminal specifically performs the following operations:
  • the fingerprint reader sends fourth information to the touch screen, the fourth information includes the working mode of the fingerprint reader; the touch screen determines the working mode of the fingerprint reader as the preset working mode according to the fourth information; the touch screen enables frequency hopping or increases the strength of the working signal. Operating mode.
  • the terminal further includes a processor; a fingerprint reader is specifically configured to send fourth information to the touch screen through the processor, and the fourth information includes a working mode of the fingerprint reader.
  • the terminal specifically performs the following operations:
  • the touch screen starts to detect interference signals, and starts a frequency hopping or working mode of increasing the strength of the working signal.
  • a terminal includes a fingerprint reader and a touch screen; a fingerprint reader is used to detect a user's touch operation; a fingerprint reader is further used to determine the working mode of the fingerprint reader based on the user's touch operation; a touch screen Is used to enable the frequency hopping or increase the working signal strength if the working mode of the fingerprint reader is the preset working mode; the touch screen is also used to send the fingerprint reader to the fingerprint reader if the touch screen detects that the interference signal meets the preset conditions.
  • Sending first information is used to instruct the fingerprint reader to hop frequency or reduce the strength of the working signal; the fingerprint reader is also used to hop frequency or reduce the strength of the working signal.
  • the preset working mode includes: the fingerprint reader is in a legal unlocking working mode, or the fingerprint reader is in a terminal unlocking working mode; wherein the fingerprint reader is in a legal unlocking working mode refers to a terminal In the lock screen state, the fingerprint reader collects the user's fingerprint, and the user's fingerprint verification is successful.
  • the fingerprint reader indicates the working mode of the terminal unlocking.
  • the working mode of the fingerprint reader in the terminal unlocking mode means that the terminal is in the In the unlocked state, the fingerprint reader detects the user's click, double-click, long-press, or slide operation.
  • the preset condition is that the frequency of the interference signal is a sensitive frequency of the touch screen, and the intensity of the interference signal reaches a threshold value; wherein, the sensitive frequency of the touch screen is a fundamental frequency or an odd harmonic of the touch screen working signal. Frequency between m times and n times, where m is greater than 0 and less than 1, and n is greater than 1 and less than 2.
  • the touch screen is specifically configured to send first information to the fingerprint reader through the processor if the touch screen detects that the interference signal meets a preset condition, and the first information is used to instruct the fingerprint reader to hop frequency or Reduce the working signal strength.
  • a terminal in a seventh aspect, includes a fingerprint reader and a touch screen; the touch screen includes a touch sensor and a display screen; the touch screen is used to detect a user's touch operation when the touch screen is in a working state; wherein the touch screen is in a working state includes a touch screen Received an unlock instruction or the touch screen is in an unlocked state; the touch screen is also used to enable frequency hopping or increase the working signal strength of the work mode; the touch sensor in the touch screen is used to frequency hop or increase the frequency if it detects that the interference signal meets the preset conditions Working signal strength.
  • a terminal in an eighth aspect, includes a fingerprint reader and a touch screen; the touch screen is used to detect a user's touch operation when the touch screen is in a working state; wherein the touch screen is in a working state includes: the touch screen receives an unlock instruction or the touch screen is unlocked State; the touch screen is also used to enable frequency hopping or to increase the working signal strength of the work mode; the touch screen is also used to send the first information to the fingerprint reader if it detects that the interference signal meets the preset conditions; the first information is used to indicate Fingerprint reader frequency hopping or reducing the working signal strength; Fingerprint reader, frequency hopping or reducing the working signal strength.
  • an embodiment of the present application provides a method for operating a touch device, which is applied to a terminal including a fingerprint reader and a touch screen.
  • the touch screen includes a touch sensor and a display screen. The method includes:
  • the fingerprint reader detects a touch operation; responds to the detected touch operation; the fingerprint reader notifies the touch screen to enable the frequency hopping or increase the working signal strength; the touch screen enables the frequency hopping or increase the working signal strength; if the touch screen detects If the interference signal meets the preset conditions, the touch sensor in the touch screen will hop frequency or increase the working signal strength.
  • the working mode of enabling frequency hopping or increasing the working signal strength of the touch screen includes: a working mode of enabling frequency hopping or increasing the working signal strength when the touch screen is on the bright screen.
  • the fingerprint reader sleeps, and the fingerprint reader notifies the touch screen to turn off the frequency hopping or the working signal intensity of the working mode; the touch screen turns off the frequency hopping. Or increase the working signal strength of the working mode.
  • the touch screen detects that the touch screen is off the screen, and the touch screen turns off the frequency hopping or the working mode of increasing the working signal strength.
  • a computer storage medium includes computer instructions, and when the computer instructions are run on a terminal, cause the terminal to execute any one of the first aspect to the fourth aspect and any possible implementation manner of any aspect As described in the method.
  • a computer program product when the computer program product runs on a computer, causes the computer to execute any one of the first to fourth aspects and any possible implementation manner of any one of the aspects. The method described.
  • FIG. 1 is a first schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 2 is a second schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 3 is a circuit diagram of mutual interference between a fingerprint reader and a touch screen according to an embodiment of the present application
  • FIG. 4 is a third structural schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 5 is a first schematic flowchart of a working method of a touch device according to an embodiment of the present application.
  • FIG. 6 is a second flowchart of a working method of a touch device according to an embodiment of the present application.
  • FIG. 7 is a third flowchart of a working method of a touch device according to an embodiment of the present application.
  • FIG. 8 is a fourth flowchart of a working method of a touch device according to an embodiment of the present application.
  • FIG. 9 is a fifth flowchart of a working method of a touch device according to an embodiment of the present application.
  • FIG. 10 is a sixth flowchart of a working method of a touch device according to an embodiment of the present application.
  • FIG. 11 is a schematic flowchart VII of a working method of a touch device according to an embodiment of the present application.
  • FIG. 12 is a schematic flowchart VIII of a working method of a touch device according to an embodiment of the present application.
  • FIG. 13 is a flowchart IX of a working method of a touch device according to an embodiment of the present application.
  • FIG. 14 is a schematic flowchart 10 of a working method of a touch device according to an embodiment of the present application.
  • FIG. 15 is a schematic flowchart XI of a working method of a touch device according to an embodiment of the present application.
  • FIG. 16 is a sequence example diagram of a fingerprint identifier and a touch screen working process according to an embodiment of the present application.
  • FIG. 17 is a schematic flowchart 12 of a working method of a touch device according to an embodiment of the present application.
  • FIG. 18 is a schematic flowchart 13 of a working method of a touch device according to an embodiment of the present application.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.
  • Module modules with independent functions that make up the system, such as liquid crystal display (LCD), TP, camera module, fingerprint module, near field communication (NFC), audio module , RF modules, etc.
  • LCD liquid crystal display
  • TP camera module
  • NFC near field communication
  • audio module audio module
  • RF modules etc.
  • Electromagnetic interference refers to the interference phenomenon caused by the interaction between electromagnetic waves and electronic components. There are two types of conduction interference and radiation interference. Conducted interference refers to the coupling (interference) of signals on one electrical network to another electrical network through a conductive medium. Radiated interference refers to the interference source coupling (interfering) its signal to another electrical network through space. In the embodiment of the present application, the electromagnetic wave is transmitted to the other mold component when one mold component works, so as to interfere with the normal operation of the other mold component.
  • the embodiment of the present application provides a working method of a touch device, which can reduce mutual interference between the mold components and improve the use experience of the terminal.
  • the method provided in the embodiment of the present application can be applied to a terminal having a touch function module.
  • the terminal in the present application may be a mobile phone, a tablet computer, a personal computer (PC), a personal digital assistant (PDA), a smart watch, a netbook, a wearable terminal, and augmented reality technology (Augmented Reality (AR) equipment, virtual reality (VR) equipment, etc., this application does not specifically limit the specific form of the terminal.
  • augmented reality technology Augmented Reality (AR) equipment, virtual reality (VR) equipment, etc.
  • FIG. 1 it is an example of a structural block diagram of the terminal 100 in the embodiment of the present application.
  • the terminal 100 may include a processor 110, an external memory interface 120, an internal memory 121, a USB interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a radio frequency module 150, a communication module 160, and an audio module.
  • a processor 110 an external memory interface 120, an internal memory 121, a USB interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a radio frequency module 150, a communication module 160, and an audio module.
  • speaker 170A, receiver 170B, microphone 170C, headphone interface 170D, sensor module 180, button 190, motor 191, indicator 192, camera 193, display 194, and SIM card interface 195 may be included in the terminal 100.
  • the sensor module can include pressure sensor 180A, gyroscope sensor 180B, barometric pressure sensor 180C, magnetic sensor 180D, acceleration sensor 180E, distance sensor 180F, proximity light sensor 180G, fingerprint sensor 180H, temperature sensor 180J, touch sensor 180K, and ambient light sensor. 180L, bone conduction sensor, etc.
  • the structure illustrated in the embodiment of the present application does not constitute a limitation on the terminal 100. It may include more or fewer parts than shown, or some parts may be combined, or some parts may be split, or different parts may be arranged.
  • the illustrated components can be implemented in hardware, software, or a combination of software and hardware.
  • the processor 110 may include one or more processing units.
  • the processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, memory, video codec, digital signal processor (DSP), baseband processor, and / or neural network processing unit (NPU) Wait.
  • AP application processor
  • modem processor graphics processing unit
  • GPU graphics processing unit
  • image signal processor image signal processor
  • ISP image signal processor
  • DSP digital signal processor
  • NPU neural network processing unit
  • different processing units can be independent devices or integrated in the same processor.
  • the controller may be a decision maker who instructs each component of the terminal 100 to coordinate work according to the instruction. It is the nerve center and command center of the terminal 100.
  • the controller generates operation control signals according to the instruction operation code and timing signals, and completes the control of fetching and executing the instructions.
  • the processor 110 may further include a memory for storing instructions and data.
  • the memory in the processor is a cache memory. You can save instructions or data that the processor has just used or recycled. If the processor needs to use the instruction or data again, it can be called directly from the memory. Repeated accesses are avoided, the processor's waiting time is reduced, and the efficiency of the system is improved.
  • the processor 110 may include an interface.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit (inter-integrated circuit, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transceiver (universal asynchronous receiver / transmitter (UART) interface, mobile industry processor interface (MIPI), general-purpose input / output (GPIO) interface, subscriber identity module (SIM) interface, And / or universal serial bus (universal serial bus, USB) interfaces.
  • I2C integrated circuit
  • I2S integrated circuit
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous transceiver
  • MIPI mobile industry processor interface
  • GPIO general-purpose input / output
  • SIM subscriber identity module
  • USB universal serial bus
  • the I2C interface is a two-way synchronous serial bus, including a serial data line (serial data line (SDA)) and a serial clock line (derail clock line (SCL)).
  • the processor may include multiple sets of I2C buses.
  • the processor can be coupled to touch sensors, chargers, flashes, cameras, etc. through different I2C bus interfaces.
  • the processor may couple the touch sensor through the I2C interface, so that the processor and the touch sensor communicate through the I2C bus interface to implement the touch function of the terminal 100.
  • the MIPI interface can be used to connect processors with peripheral devices such as displays, cameras, etc.
  • the MIPI interface includes a camera serial interface (CSI), a display serial interface (DSI), and the like.
  • the processor and the camera communicate through a CSI interface to implement a shooting function of the terminal 100.
  • the processor and the display screen communicate through a DSI interface to implement a display function of the terminal 100.
  • the GPIO interface can be configured by software.
  • the GPIO interface can be configured as a control signal or as a data signal.
  • the GPIO interface may be used to connect the processor with a camera, a display screen, a communication module, an audio module, a sensor, and the like.
  • GPIO interface can also be configured as I2C interface, I2S interface, UART interface, MIPI interface, etc.
  • the interface connection relationship between the modules illustrated in the embodiments of the present application is only a schematic description, and does not constitute a limitation on the structure of the terminal 100.
  • the terminal 100 may adopt different interface connection modes or a combination of multiple interface connection modes in the embodiments of the present application.
  • the charging management module 140 is configured to receive a charging input from a charger.
  • the charger may be a wireless charger or a wired charger.
  • the charging management module may receive a charging input of a wired charger through a USB interface.
  • the charging management module may receive a wireless charging input through a wireless charging coil of the terminal 100. While the charging management module is charging the battery, it can also supply power to the terminal device through the power management module 141.
  • the power management module 141 is used to connect the battery 142, the charge management module 140 and the processor 110.
  • the power management module receives inputs from the battery and / or charge management module, and supplies power to a processor, an internal memory, an external memory, a display screen, a camera, and a communication module.
  • the power management module can also be used to monitor battery capacity, battery cycle times, battery health (leakage, impedance) and other parameters.
  • the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charge management module 140 may be provided in the same device.
  • the wireless communication function of the terminal 100 may be implemented by the antenna 1, the antenna 2, the radio frequency module 150, the communication module 160, a modem processor, and a baseband processor.
  • the antenna 1 and the antenna 2 are used for transmitting and receiving electromagnetic wave signals.
  • Each antenna in the terminal 100 may be used to cover a single or multiple communication frequency bands. Different antennas can also be multiplexed to improve antenna utilization. For example, a cellular network antenna can be multiplexed into a wireless LAN diversity antenna. In some embodiments, the antenna may be used in conjunction with a tuning switch.
  • the radio frequency module 150 may provide a communication processing module applied to the terminal 100 and including a wireless communication solution such as 2G / 3G / 4G / 5G. It may include at least one filter, switch, power amplifier, Low Noise Amplifier (LNA), and the like.
  • the radio frequency module receives electromagnetic waves from the antenna 1, and processes the received electromagnetic waves by filtering, amplifying, and other processing, and transmitting them to the modem processor for demodulation.
  • the radio frequency module can also amplify the signal modulated by the modem processor and turn it into electromagnetic wave radiation through the antenna 1.
  • at least part of the functional modules of the radio frequency module 150 may be disposed in the processor 150. In other embodiments, at least part of the functional modules of the radio frequency module 150 may be provided in the same device as at least part of the modules of the processor 110.
  • the modem processor may include a modulator and a demodulator.
  • the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal.
  • the demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal.
  • the demodulator then transmits 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 passed to the application processor.
  • the application processor outputs sound signals through audio equipment (not limited to speakers, receivers, etc.), or displays images or videos through a display screen.
  • the modem processor may be a separate device.
  • the modem processor may be independent of the processor and disposed in the same device as the radio frequency module or other functional modules.
  • the communication module 160 can provide wireless LAN (wireless local area networks, WLAN), Bluetooth (Bluetooth, BT), global navigation satellite system (GNSS), frequency modulation (FM) applied to the terminal 100.
  • a communication processing module of a wireless communication solution such as near field communication (NFC), infrared technology (infrared, IR).
  • the communication module 160 may be one or more devices that integrate at least one communication processing module.
  • the communication module receives the electromagnetic wave through the antenna 2, frequency-modulates and filters the electromagnetic wave signal, and sends the processed signal to the processor.
  • the communication module 160 may also receive a signal to be transmitted from the processor, frequency-modulate it, amplify it, and turn it into electromagnetic wave radiation through the antenna 2.
  • the antenna 1 of the terminal 100 is coupled to a radio frequency module, and the antenna 2 is coupled to a communication module. It enables the terminal 100 to communicate with the network and other devices through wireless communication technology.
  • the wireless communication technology may include a global mobile communication system (GSM), a general packet radio service (GPRS), a code division multiple access (CDMA), and broadband. Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and / or IR technology.
  • the GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a beidou navigation navigation system (BDS), and a quasi-zenith satellite system (quasi -zenith satellite system (QZSS)) and / or satellite-based augmentation systems (SBAS).
  • GPS global positioning system
  • GLONASS global navigation satellite system
  • BDS Bertdou navigation navigation system
  • QZSS quasi-zenith satellite system
  • SBAS satellite-based augmentation systems
  • the terminal 100 implements a display function through a GPU, a display screen 194, and an application processor.
  • the GPU is a microprocessor for image processing, which connects the display screen and the 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 change display information.
  • the display screen 194 is used to display images, videos, and the like.
  • the display includes a display panel.
  • the display panel can adopt LCD (liquid crystal display), OLED (organic light-emitting diode), active matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode) emitting diodes (AMOLED), flexible light-emitting diodes (FLEDs), Miniled, MicroLed, Micro-oLed, quantum dot light emitting diodes (QLEDs), etc.
  • the terminal 100 may include one or N display screens, where N is a positive integer greater than 1.
  • the terminal 100 may implement a shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen, and an application processor.
  • ISP is used to process data from camera feedback. For example, when taking a picture, the shutter is opened, and the light is transmitted to the light receiving element of the camera through the lens. The light signal is converted into an electrical signal, and the light receiving element of the camera passes the electrical signal to the ISP for processing and converts the image to the naked eye. ISP can also optimize the image's noise, brightness, and skin tone. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, an ISP may be provided in the camera 193.
  • the camera 193 is used to capture still images or videos.
  • An object generates an optical image through a lens and projects it onto a photosensitive element.
  • the photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor.
  • CMOS complementary metal-oxide-semiconductor
  • the photosensitive element converts the optical signal into an electrical signal, and then passes the electrical signal to the ISP to convert it into a digital image signal.
  • the ISP outputs digital image signals to the DSP for processing.
  • DSP converts digital image signals into image signals in standard RGB, YUV and other formats.
  • the terminal 100 may include one or N cameras, where N is a positive integer greater than 1.
  • a digital signal processor is used to process digital signals. In addition to digital image signals, it can also process other digital signals. For example, when the terminal 100 selects at a frequency point, the digital signal processor is used to perform a Fourier transform on the frequency point energy and the like.
  • Video codecs are used to compress or decompress digital video.
  • the terminal 100 may support one or more codecs. In this way, the terminal 100 can play or record videos in multiple encoding formats, such as: MPEG1, MPEG2, MPEG3, MPEG4, and so on.
  • the NPU is a neural-network (NN) computing processor.
  • NN neural-network
  • applications such as intelligent cognition of the terminal 100 can be implemented, such as: image recognition, face recognition, speech recognition, text understanding, and the like.
  • the external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to achieve the expansion of the storage capacity of the terminal 100.
  • the external memory card communicates with the processor through an external memory interface to implement a data storage function. For example, save music, videos and other files on an external memory card.
  • the internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions.
  • the processor 110 executes various functional applications and data processing of the terminal 100 by executing instructions stored in the internal memory 121.
  • the memory 121 may include a storage program area and a storage data area.
  • the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, and the like).
  • the storage data area may store data (such as audio data, phone book, etc.) created during the use of the terminal 100.
  • the memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, other volatile solid-state storage devices, a universal flash memory (universal flash storage, UFS), etc. .
  • a non-volatile memory such as at least one magnetic disk storage device, a flash memory device, other volatile solid-state storage devices, a universal flash memory (universal flash storage, UFS), etc.
  • the terminal 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, a headphone interface 170D, and an application processor. Such as music playback, recording, etc.
  • the audio module 170 is configured to convert digital audio information into an analog audio signal and output, and is also used to convert an analog audio input into a digital audio signal.
  • the audio module can also be used to encode and decode audio signals.
  • the audio module may be disposed in the processor 110, or some functional modules of the audio module may be disposed in the processor 110.
  • the speaker 170A also called a "horn" is used to convert audio electrical signals into sound signals.
  • the terminal 100 can listen to music through a speaker or listen to a hands-free call.
  • the receiver 170B also referred to as the "handset" is used to convert audio electrical signals into sound signals.
  • the terminal 100 answers a call or a voice message, it can answer the voice by holding the receiver close to the human ear.
  • the microphone 170C also called “microphone”, “microphone”, is used to convert sound signals into electrical signals.
  • the user can make a sound through the mouth close to the microphone, and input the sound signal into the microphone.
  • the terminal 100 may be provided with at least one microphone.
  • the terminal 100 may be provided with two microphones, and in addition to collecting sound signals, a noise reduction function may also be implemented.
  • the terminal 100 may further be provided with three, four, or more microphones to collect sound signals, reduce noise, and also identify the source of the sound, and implement a directional recording function.
  • the headset interface 170D is used to connect a wired headset.
  • the earphone interface can be a USB interface or a 3.5mm open mobile terminal platform (OMTP) standard interface, and the American Cellular Telecommunications Industry Association (United States of America, CTIA) standard interface.
  • OMTP open mobile terminal platform
  • CTIA American Cellular Telecommunications Industry Association
  • the fingerprint sensor 180H is used to collect fingerprints.
  • the terminal 100 may use the collected fingerprint characteristics to realize fingerprint unlocking, access application lock, fingerprint photographing, fingerprint answering an incoming call, and the like.
  • the fingerprint sensor 180H is the main device of the fingerprint reader.
  • a fingerprint reader may be configured on the back of the terminal 100 (eg, below the rear camera), or a fingerprint reader may be configured on the front of the terminal 100 (eg, below the display screen 194).
  • a fingerprint identifier may be configured in the display screen 194 to implement the fingerprint identification function, that is, the fingerprint identifier may be integrated with the display screen 194 to implement the fingerprint identification function of the terminal 100.
  • the fingerprint reader is configured in the display screen 194, may be a part of the display screen 194, or may be configured in the display screen 194 in other ways.
  • the fingerprint reader in the embodiments of the present application may use any type of sensing technology, including but not limited to optical, capacitive, piezoelectric, or ultrasonic sensing technologies.
  • the structure of the fingerprint reader may be similar to that of a touch device in a touch screen, and the size is smaller.
  • the fingerprint reader is used to detect the texture of the fingerprint. Due to the unevenness of the fingerprint of the hand, the actual distance between the convex point and the concave point touching the flat plate is different, and the resulting capacitance / inductance value is also different. From this, the fingerprint identifier can detect Graphic of fingerprint.
  • the fingerprint reader outputs a touch signal, and according to this principle, the collected different capacitance detection values are summarized and sent to the processor 110 to complete the fingerprint collection. According to the detected patterns, a comparison may be performed to determine whether they are the same as one of the one or more fingerprint patterns stored in advance for fingerprint verification, and then perform other interactive actions.
  • the touch sensor 180K is also called “touch panel”. Can be set on the display. Used to detect touch operations on or near it. The detected touch operation can be passed to the application processor to determine the type of touch event and provide corresponding visual output through the display screen.
  • the touch sensor 180K may also form a touch screen of the terminal 100 together with the display screen 194.
  • the touch sensor 180K can collect touch events on or near the user of the terminal 100 (such as the operation of the user using a finger, a stylus or any suitable object on the touch sensor 180K or near the touch sensor 180K), and The collected touch information is sent to other devices (for example, the processor 110).
  • the user's touch event near the touch sensor 180K can be called hovering touch; hovering touch can mean that the user does not need to directly touch the touch sensor 180K in order to select, move, or drag an object (such as an icon), but only The user needs to be near the device in order to perform the desired function.
  • the capacitive touch screen includes an insulator covered by a transparent conductor formed on a specific layout.
  • the processor 110 can determine the touched position by detecting the change in capacitance.
  • the keys 190 include a power-on key, a volume key, and the like.
  • the keys can be mechanical keys. It can also be a touch button.
  • the terminal 100 receives a key input, and generates a key signal input related to user settings and function control of the terminal 100.
  • the motor 191 may generate a vibration alert.
  • the motor can be used for incoming vibration alert and touch vibration feedback.
  • the touch operation applied to different applications can correspond to different vibration feedback effects.
  • Touch operations on different areas of the display can also correspond to different vibration feedback effects.
  • Different application scenarios (such as time reminders, receiving information, alarm clocks, games, etc.) can also correspond to different vibration feedback effects.
  • Touch vibration feedback effect can also support customization.
  • the indicator 192 can be an indicator light, which can be used to indicate the charging status, power change, and can also be used to indicate messages, missed calls, notifications, and so on.
  • the SIM card interface 195 is used to connect to a subscriber identity module (SIM).
  • SIM subscriber identity module
  • the SIM card can be contacted and separated from the terminal 100 by inserting or removing the SIM card interface.
  • the software system of the terminal 100 may adopt a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture.
  • the embodiment of the present application takes the Android system with a layered architecture as an example, and exemplifies the software structure of the terminal 100.
  • the layered architecture divides the software into several layers, each of which has a clear role and division of labor. Layers communicate with each other through interfaces.
  • the Android system is divided into four layers, which are an application layer, an application framework layer, an Android runtime and a system library, and a kernel layer from top to bottom.
  • the application layer can include a series of application packages.
  • the application package can include camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, SMS and other applications.
  • the application framework layer provides an application programming interface (API) and a programming framework for applications at the application layer.
  • API application programming interface
  • the application framework layer includes some predefined functions.
  • the application framework layer may include a window manager, a content provider, a view system, a phone manager, a resource manager, a notification manager, and the like.
  • the window manager is used to manage window programs.
  • the window manager can obtain the display size, determine whether there is a status bar, lock the screen, take a screenshot, etc.
  • Content providers are used to store and retrieve data and make it accessible to applications.
  • the data may include videos, images, audio, calls made and received, browsing history and bookmarks, phone books, and so on.
  • the view system includes visual controls, such as controls that display text, controls that display pictures, and so on.
  • the view system can be used to build applications.
  • the display interface can consist of one or more views.
  • the display interface including the SMS notification icon may include a view that displays text and a view that displays pictures.
  • the phone manager is used to provide a communication function of the terminal 100. For example, management of call status (including connection, hang up, etc.).
  • the resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.
  • the notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages that can disappear automatically after a short stay without user interaction.
  • the notification manager is used to inform download completion, message reminders, etc.
  • the notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window.
  • text messages are displayed in the status bar, a tone is emitted, the terminal vibrates, and the indicator light flashes.
  • Android Runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.
  • the core library contains two parts: one is the functional functions that the Java language needs to call, and the other is the Android core library.
  • the application layer and the application framework layer run in a virtual machine.
  • the virtual machine executes the java files of the application layer and the application framework layer as binary files.
  • Virtual machines are used to perform object lifecycle management, stack management, thread management, security and exception management, and garbage collection.
  • the system library can include multiple functional modules. For example: Surface manager, Media library, OpenGL ES, SGL, etc.
  • the Surface Manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications.
  • the media library supports a variety of commonly used audio and video formats for playback and recording, as well as still image files.
  • the media library can support multiple audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.
  • OpenGL ES is used to implement 3D graphics drawing, image rendering, compositing, and layer processing.
  • SGL is a drawing engine for 2D drawing.
  • the kernel layer is the layer between hardware and software.
  • the kernel layer contains at least a display driver, a camera driver, an audio driver, and a sensor driver.
  • FIG. 4 it is a schematic diagram of the appearance of the terminal 100.
  • the terminal 100 includes a touch screen 401 and a fingerprint reader 402.
  • a graphical user interface is displayed on the touch screen 401.
  • icons 403 of various application programs are exemplarily displayed in FIG. 4.
  • the visible components of the terminal 100 also include any one or a combination of the following: speakers, microphones, various interfaces such as charging interfaces / headphones, various physical buttons such as volume keys / lock screen keys, cameras, flashlights, and other structures.
  • the touch screen 401 and the fingerprint reader 402 may be located in two areas on the same side of the terminal 100. In other embodiments, the touch screen 401 and the fingerprint reader 402 may also be located on two opposite sides of the terminal 100, for example, the touch screen 401 is on the front and the fingerprint reader 402 is on the back. In still other embodiments, the touch screen 401 and the fingerprint reader 402 may also be located in the same area, and details are not described again.
  • the fingerprint reader collects the user's fingerprint information, and the fingerprint identifier compares the collected fingerprint information with the pre-stored legal fingerprint information. After the comparison is successful, the fingerprint identifier reports the comparison result to the corresponding application in the application layer through the kernel layer.
  • the application unlocks the screen. And call the display driver in the kernel layer, and display the interface after the terminal is unlocked through the touch screen.
  • the fingerprint reader reports the comparison result to the corresponding application in the application layer through the kernel layer, or before, or after, the fingerprint reader sends its legal unlocking working mode to the touch screen, so that the touch screen can determine whether to enable jump Frequency or boost the working signal strength.
  • the specific operation and interaction of the fingerprint reader and the touch screen can be referred to below.
  • the fingerprint reader may be triggered to report a touch event generated by the user's touch action to the kernel layer through a corresponding driver (for example, Parameters such as touch point position, time, etc.), the kernel layer encapsulates the touch event, and calls the corresponding API to distribute the touch event to the application layer application.
  • the application in the application layer performs different operations according to different touch operations, and calls the display driver in the kernel layer to display the corresponding interface through the touch screen.
  • the fingerprint reader reports the touch event generated by the user's touch action to the kernel layer through the corresponding driver. At the same time, or before, or after, the fingerprint reader sends the unlocked working mode to the touch screen so that the touch screen can determine whether to enable frequency hopping Or increase the working signal strength of the working mode.
  • the specific operation and interaction of the fingerprint reader and the touch screen can be referred to below.
  • the interference between the touch screen and the fingerprint reader is taken as an example to briefly explain the principle of causing interference between the mold components.
  • the touch screen and the fingerprint reader are both in the working state, when the user's finger 1 touches the fingerprint reader, and the finger 2 also touches the touch screen at the same time, the user's human body, terminal and earth (PE) are formed as shown in FIG. Circuit diagram.
  • the finger 1 touches the fingerprint reader (may be referred to as a “fingerprint device”)
  • the surface of the finger 1 and the surface layer of the fingerprint reader form a capacitance C f
  • the finger 2 touches the touch screen
  • the surface of the finger 2 and the surface layer of the touch screen form a capacitance C t .
  • the body resistance between finger 1 and finger 2 is R 2 .
  • the equivalent capacitance of the touch screen self-capacitance to the terminal ground (GND) is C tpi .
  • the human body resistance R 2 , the capacitance C f , the capacitance C t and C tpi form a closed path, which is the interference path.
  • the electromagnetic wave when the fingerprint reader works will be conducted to the touch screen through the closed path. If the working frequency of the fingerprint reader and the touch screen at this time coincide, the working signal of the fingerprint reader will cause interference to the touch screen. In other words, from the perspective of the touch screen, the working signal of the fingerprint reader at this time can be regarded as the interference signal of the touch screen.
  • the working signal strength of the fingerprint reader reaches a certain threshold, the touch screen will work abnormally. For example: there is no response to touch on the touch screen, dial-up linkage, screen jumping, etc.
  • the electromagnetic wave during the operation of the touch screen will also be transmitted to the fingerprint reader through the closed path. If the operating frequency of the fingerprint reader and the touch screen at this time coincide, the working signal of the touch screen will interfere with the fingerprint reader. In other words, from the perspective of the fingerprint reader, the working signal of the touch screen at this time can be regarded as an interference signal of the fingerprint reader.
  • the working signal strength of the touch screen reaches a certain threshold, it will cause the fingerprint reader to work abnormally. For example: there is a failure to unlock the fingerprint, or there is no response when touching the fingerprint reader.
  • the method for reducing the interference of the fingerprint reader by the touch screen will be described as an example.
  • the interference signal caused by the fingerprint reader is quantified. Still referring to FIG. 3, the fingerprint reader can calculate the interference voltage V f of the fingerprint reader on the touch screen according to the existing calculation method.
  • C m is the capacitance of the human body to the earth, which is about 100 picofarads (pF).
  • C s is the terminal-to-ground capacitance and is about 10 pF.
  • C h is the capacitance of the human body to the mobile phone, which is usually greater than 1 pF.
  • C f is the capacitance of the finger to the fingerprint reader.
  • C t is the capacitance of the finger to the touch screen, which is generally 5pF.
  • R 1 is the resistance of the human body and is usually located between 330 and 2000 ohms.
  • R 2 and R 3 are internal resistances of the human body, both of which are about 5000 ohms.
  • C tpi is the equivalent capacitance of the touch screen self-capacitance to the terminal ground, which is usually less than 1pF.
  • V 1 is the working voltage of the fingerprint reader.
  • the interference voltage V f caused by the fingerprint reader to the touch screen can be written as follows:
  • the voltage intensity of the interference signal is positively related to the operating voltage of the fingerprint reader.
  • the voltage intensity of the interference signal is also related to the capacitance formed by the user's finger touching the fingerprint reader and the fingerprint reader.
  • the voltage strength of the interference signal is also related to the capacitance formed by the user's finger touching the touch screen and the touch screen, which will not be described one by one.
  • the preset conditions include that the frequency of the interference signal is within a sensitive frequency range of the operating frequency of the touch screen (that is, the frequency of the interference signal is close to the operating frequency of the touch screen), and the intensity of the interference signal reaches a certain threshold. This is because the interference signal is located in the sensitive interval of the touch screen's operating frequency, which will affect the work of the touch screen. The intensity of the interference signal reaches a certain threshold, which will cause the touch screen to work abnormally.
  • the sensitive frequency range of the touch screen is an interval near a fundamental frequency or an odd harmonic of a touch screen operating signal, and may be, for example, between 0.9 and 1.1 times the touch screen operating frequency.
  • the touch screen can detect interference signals, and when it is detected that the interference signals meet preset conditions, a corresponding method of reducing interference is adopted.
  • a frequency hopping method may be used to reduce the interference of the fingerprint reader to the touch screen. This is because when the touch screen detects that the interference signal meets the preset conditions, the current working frequency of the touch screen is similar to the frequency of the interference signal, so the touch screen can hop frequency, that is, the touch screen switches the current working frequency to another frequency. The operating frequency after switching may not coincide with the interference frequency, thereby avoiding mutual interference between the two mode components.
  • the touch screen when the touch screen detects that the interference signal meets a preset condition, it can reduce the interference of the fingerprint reader to the touch screen by increasing the intensity of the working signal. This is because after the touch screen increases the strength of its own working signal, the strength of the interference signal is not sufficient to cause the touch screen to work abnormally, which is equivalent to the touch screen reducing the interference of the fingerprint reader.
  • the fingerprint reader when it is detected that the interference signal satisfies a preset condition, may also reduce the interference on the touch screen by frequency hopping or reducing the strength of the working signal. In the same way, the frequency hopping of the fingerprint reader can make the operating frequency of the touch screen and the operating frequency of the fingerprint reader not coincide, thereby avoiding mutual interference between the two module components.
  • the voltage formula of the interference signal it can be known that after the fingerprint identifier reduces the intensity of the working signal, the intensity of the interference signal is reduced, and the interference effect is not enough to cause the touch screen to work abnormally.
  • the work signal of the touch screen is a work signal used to detect a touch
  • the work signal of the fingerprint reader is a work signal used to detect a touch
  • a touch screen usually includes a touch layer and a display screen.
  • the main device of the touch layer is a touch sensor.
  • the touch screen is mainly affected by the touch sensor of the touch layer. Therefore, when the touch screen adopts frequency hopping to reduce the interference of the fingerprint reader, it is also mainly the frequency hopping of the touch sensor of the touch layer, so that the operating frequency of the touch sensor does not coincide with the operating frequency of the fingerprint reader.
  • the touch screen adopts a method of increasing the working signal strength to reduce the interference of the fingerprint reader, it also mainly refers to increasing the working signal strength of the touch sensor of the touch screen.
  • the operating frequency of the touch screen mainly refers to the operating frequency of the touch sensor of the touch layer
  • the operating signal of the touch screen also mainly refers to the operating signal of the touch sensor of the touch layer, which will not be described in detail below.
  • the touch screen always works in frequency hopping or enhanced working signal strength mode.
  • the touch screen will periodically determine whether the touch screen detects that the interference signal meets the preset conditions. After conditions, touch screen frequency hopping or increase the working signal strength. In this working mode, the touch screen periodically determines whether the interference signal meets the preset conditions, and the power consumption is large.
  • the touch screen may only start the frequency hopping of the touch screen or the working mode of improving the working signal strength when the fingerprint reader and the touch screen are both in the working state, that is, the touch screen may When the touch screens are all in the working state, it is periodically judged whether the interference signal detected by the touch screen meets the preset conditions. After the preset conditions are met, the touch screen skips the frequency or increases the strength of the working signal. Generally, since the touch screen is in the working state and the fingerprint reader is also in the working state infrequently and for a short time, the method provided in the embodiment of the present application can greatly reduce the power consumption of the terminal.
  • both the fingerprint reader and the touch screen are in the working state, and there is the above interference when touched at the same time. Therefore, in the following, a case where both the fingerprint reader and the touch screen are in a working state is briefly introduced in combination with the working process of the fingerprint reader in the terminal.
  • FIG. 16 (1) it is a timing example diagram of the working process of a fingerprint reader and a touch screen in a terminal. details as follows:
  • the terminal is dormant and the terminal is in the off-screen state.
  • the fingerprint reader and the touch screen are also in the dormant state.
  • the terminal detects the user's touch operation on the fingerprint reader, and wakes up the fingerprint reader.
  • the fingerprint reader reads the user's fingerprint information and compares it with a pre-stored fingerprint. If the comparison fails, the terminal continues to be in the screen lock state; in some embodiments of the present application, if the comparison fails, the terminal can continue to keep the screen off. At this time, the fingerprint reader is working, and the touch screen is still in a sleep state. In other embodiments of the present application, if the comparison fails, the terminal may light up the screen, and the screen displays a lock screen interface at this time. As shown in (2) in FIG.
  • the fingerprint sensor is in a working state, and the terminal lights up the screen at time t7.
  • the terminal goes off the screen at time t8 (the terminal goes off the screen at time t8), both the fingerprint reader and the touch screen are in a working state. It can be understood that, at this time, the user can perform limited operations on the lock screen interface, so it may not be considered that the touch screen is in a working state at this time.
  • the terminal goes off the screen. From t8 to t9, the fingerprint reader is in a working state, and the touch screen is in a non-working state. Understandably, the fingerprint reader may also go to sleep before the terminal goes off the screen.
  • the terminal is unlocked (at time t3).
  • the touch screen is woken up and the main interface or other interfaces are displayed.
  • the fingerprint reader is in a legal unlocking working mode.
  • the fingerprint reader is working and the touch screen is also working.
  • the terminal is in an unlocked state, if the user does not detect the operation of touching the fingerprint reader again within a period of time, the fingerprint reader enters the sleep state again at time t4, and the touch screen is still in a working state at this time.
  • both the fingerprint reader and the touch screen are in a working state. If the terminal detects that the user touches the fingerprint reader and the touch screen at the same time, the interference described above may occur.
  • the fingerprint reader when the fingerprint reader is in a sleep state when the terminal is in an unlocked state, if it is detected that the user touches the fingerprint reader, the fingerprint reader is woken up. At this time, both the fingerprint reader and the touch screen are working.
  • the user's operation of touching the fingerprint reader may be long press, double-tap, swipe, etc.
  • the fingerprint reader recognizes specific operation gestures and executes corresponding instructions.
  • both the fingerprint reader and the touch screen are in a working state. If the terminal detects that the user touches the fingerprint reader and the touch screen at the same time during this time (time from time t5 to time t6), the interference described above may occur.
  • an embodiment of the present application provides a method for operating a touch device, which can enable the touch screen to enable frequency hopping or improve the working signal when the fingerprint reader and the touch screen are both in the working state. Intensity work mode.
  • this embodiment of the present application provides a schematic flowchart of a touch device working method.
  • the method includes: S101-S105, as follows:
  • the first mold component is in a sleep state.
  • the first mold component is a mold component that causes interference to the second mold component.
  • the first mold component may be a fingerprint reader
  • the second mold component may be a touch screen.
  • the first mold component detects a touch operation, and the first mold component is woken up.
  • the first mold component is a fingerprint reader. Then, after the user's touch operation on the fingerprint reader is detected, the fingerprint reader is woken up and starts to work. For example: the fingerprint reader starts to detect the texture of the user's fingerprint and compares it with the pre-stored fingerprint; recognizes the operation gestures of the touch operation, such as: long press, click, double click, swipe, etc .; and determines different operations according to different operation gestures Wait.
  • the first module sends first information to the second module.
  • the first information may be a working mode of the first mold component. That is to say, the first mode component directly sends its own working mode to the second mode component, and the second mode component determines whether the frequency hopping is turned on or the working mode of improving the working signal strength is determined. After it is determined that the second mode component needs to be enabled for frequency hopping or to increase the working signal strength working mode (shown by step S104a in FIG. 6), the second mode component is enabled for frequency hopping or to improve the working signal strength working mode.
  • the first information may specifically be that the fingerprint reader is in a legally unlocked working mode, and the fingerprint reader is in a long press when the touch screen is unlocked, Click, double-tap, or swipe to work.
  • the processor notifies the fingerprint reader in advance whether the terminal is currently in a locked screen state or an unlocked state. After the fingerprint reader detects a touch operation, it determines the working mode of the fingerprint reader according to whether the terminal is currently in a locked screen state or an unlocked state. For example, if the terminal is in the lock screen state, the fingerprint reader will collect the fingerprint information of the user after detecting the touch operation, and compare the collected fingerprint information with the pre-stored legal fingerprint information.
  • the fingerprint reader will report it to the processor.
  • the processor unlocks the terminal screen. Then, the fingerprint reader can determine to work in a legally unlocked working mode. For another example: if the terminal is in an unlocked state, after the fingerprint reader detects a touch operation, the fingerprint reader reports a touch event (including touch coordinates, time stamp of the touch operation, and other information) to the processor. Touch events perform different actions. Then, the fingerprint reader can determine the working mode such as long press, tap, double-tap, or swipe in the unlocked state.
  • the second mode component determines whether the second mode component needs to enable frequency hopping or a working mode that increases the strength of the working signal.
  • the first information may be used to notify the second mode component to enable the frequency hopping of the second mode component or to increase the working signal strength of the working mode. That is to say, after detecting the touch operation, the first mode component first determines whether the second mode component needs to enable the frequency hopping or the working mode of improving the working signal strength. After it is determined that the second mode component needs to enable the frequency hopping or the working mode for increasing the working signal strength (shown by 103c in FIG. 7), the second mode component is notified of the working mode for enabling the frequency or increasing the working signal strength.
  • the above-mentioned first mode component determines the working mode in which the second mode component needs to be turned on or the working signal strength is specifically included.
  • the first mode component first determines its own working mode, and further determines the first mode component and the second mode component. Whether the components are working. If both the first mode component and the second mode component are in the working state, the first mode component determines the working mode in which the second mode component needs to be turned on or the working signal strength is increased, so as to reduce the interval between the two mode components. Interference.
  • the fingerprint reader determines its own working mode after being awakened. For a specific method of determining the working mode, reference may be made to the foregoing description, and details are not described herein again.
  • the fingerprint reader determines that it is in a legal unlock mode or in any working mode in the unlocked state (long press, click, double-click, or swipe in the unlocked state), it can be determined that the touch screen is also in a working state Therefore, the fingerprint reader can notify the touch screen to enable the frequency hopping or increase the working signal strength to reduce or reduce the interference between the two module components.
  • the second mode component starts a frequency hopping mode or a working mode for improving a working signal strength.
  • the second mode component receives the first information sent by the first mode component, and the first information is a working mode that notifies the second mode component to enable frequency hopping or improve the working signal strength, then The second mode component activates the frequency hopping or working mode of increasing the working signal strength.
  • the second mold component receives the first information sent by the first mold component, and after the first information is the working mode of the first mold component, the second mold component needs to be first Determine whether to enable frequency hopping or increase the working signal strength of the working mode. Then, step S104 is performed.
  • the specific method for determining the second mold component is similar to the method for determining the first mold component in step S103c, and details are not described herein.
  • the second module can start detecting the interference signal.
  • the first mold component is a fingerprint device and the second mold component is a touch screen.
  • the touch screen may start to detect the interference signal when the terminal is turned on, or may start to detect the interference signal when the terminal is in a bright screen state or an unlocked state.
  • the touch screen may also start detecting the interference signal after receiving the first information sent by the fingerprint reader to the touch screen in step S103.
  • the fingerprint reader may notify the touch screen to start detecting the interference signal when it determines that the fingerprint reader is in a legal unlocking work mode or in any work mode in an unlocked state according to its own work mode.
  • the fingerprint reader sends its own working mode to the touch screen, and the touch screen determines whether to detect the interference signal. If it is determined that the fingerprint reader is in a legal unlocking working mode, or in any working mode in an unlocked state, the touch screen starts to detect interference signals. In this way, the time for the touch screen to detect the interference signal is also relatively small, which is beneficial to further reducing the power consumption of the terminal. This embodiment of the present application does not limit this.
  • the second mode component can simultaneously enable detection of interference signals, and enable frequency hopping or increase the working signal strength of the working mode. You can also enable the working mode of detecting the interference signal, and then enable the frequency hopping or increase the working signal strength.
  • the detection result of the second mode component on the interference signal is queried at intervals. If the second mode component detects that the interference signal meets a preset condition, step S105 is performed. Otherwise, the second mode component continues to query the detection result of the interference signal by the second mode component at intervals.
  • the second mode component detects that the interference signal does not meet the preset condition within a preset period of time, it may be considered a period of time after the period of time.
  • the first mold component still does not cause interference to the second mold component, or the interference does not affect the normal operation of the second mold component. Therefore, the second mode component can turn off the frequency hopping or increase the working signal strength. In this way, it is beneficial to save the power consumption of the terminal and improve the response speed of the second mode component.
  • the first mold component is a fingerprint reader and the second mold component is a touch screen. If the interference signal is detected by the touch screen within a preset period of time, If the preset conditions are not met, and the fingerprint reader does not detect the touch operation again, the touch screen can turn off the frequency hopping or increase the working signal strength of the working mode.
  • the first mold component is a fingerprint reader and the second mold component is a touch screen. If the touch screen acquires the fingerprint reader in a sleep state or the touch screen detects the user Lock screen operation, the touch screen turns off frequency hopping or increases the working signal strength of the work mode. This is because the fingerprint reader is in the sleep state or the touch screen is in the lock screen state, indicating that the fingerprint reader and the touch screen are not in the same working state at the same time, no mutual interference will occur. Therefore, the touch screen turns off the frequency hopping or increases the working signal strength of the working mode. To reduce the power consumption of the terminal.
  • the above-mentioned touch screen acquiring the fingerprint identifier in the dormant state may be that the fingerprint identifier sends the information of the dormant state to the touch screen, or the touch screen actively acquires the information that the fingerprint identifier is in the dormant state.
  • the embodiments of the present application are not limited.
  • the touch screen and the fingerprint reader can communicate directly or indirectly through other hardware.
  • the lock screen operation of the user may be an operation such as a user clicking a lock screen button.
  • the fingerprint reader when the terminal is in the lock screen state, the fingerprint reader is touched at time t2 to collect user fingerprint information, verify the legitimacy of the user fingerprint information, and determine to work in a legal unlocking work mode at time t3 Then, the touch screen turns on the frequency hopping or working mode of improving the working signal strength.
  • the fingerprint reader sleeps at time t4, the touch screen turns off the frequency hopping or the working mode of increasing the working signal strength. That is to say, the touch screen starts a frequency hopping or working mode of increasing the working signal strength from time t3 to time t4.
  • the fingerprint reader when the terminal is in the unlocked state, the fingerprint reader is touched at time t5, and the fingerprint reader determines that it is in the unlocked working mode. Then, the touch screen starts frequency hopping or raises the working signal. Intensity work mode. When the fingerprint reader goes to sleep at time t6, the touch screen will turn off the frequency hopping or increase the working signal strength. That is to say, the touch screen starts the frequency hopping or working mode of increasing the working signal strength from time t5 to time t6. S105.
  • the second mode component frequency hops or increases the working signal strength.
  • the preset condition refers to that the frequency of the interference signal is within a sensitive frequency range of the second mode component, and the intensity of the interference signal reaches a threshold.
  • the sensitive frequency range of the second mode component is an interval near the fundamental frequency or odd harmonics of the working signal of the second mode component, and may be, for example, between 0.9 and 1.1 times the working frequency of the second mode component.
  • the terminal may set a plurality of preselected frequency hopping frequency points.
  • the second mode component works at frequency point 1
  • the preselected frequency points are frequency point 2, frequency point 3, and so on.
  • the second mode component switches the operating frequency point to frequency point 2. If the second mode component still detects the interference signal when switching to frequency point 2, and the interference signal meets a preset condition, the second mode component switches the operating frequency point to frequency point 3 again. And so on until the interference signal is not enough to affect the normal operation of the second mode component.
  • the terminal may set a frequency point interval.
  • the operating frequency of the second mode component can be switched according to an algorithm within the frequency point interval, for example: according to a fixed value (for example, 2kHZ ) Linear step switching.
  • a fixed value for example, 2kHZ
  • Linear step switching The embodiment of the present application does not limit the specific frequency hopping manner of the touch screen.
  • specific frequency hopping can be achieved by touching a crystal oscillator and a frequency divider inside the sensor in the touch screen, and adjusting the counter.
  • frequency hopping refer to the prior art, and details are not described herein again.
  • the working signal strength can be adjusted by adjusting the output level through the budget amplifier section in the touch screen sensor.
  • the second mode component when it is determined that both the first mode component and the second mode component are in the working state, the second mode component starts the frequency hopping or the working mode of improving the working signal strength. . Then, after it is determined that the detected interference signal satisfies a preset condition, the second mode component only frequency hops or increases the working signal strength, thereby reducing the interference between the first mode component and the second mode component.
  • the terminal may not work (or turn off) the frequency hopping or the working mode of improving the working signal strength.
  • the fingerprint reader when the fingerprint reader is in a dormant state, the fingerprint reader may be considered to be in a non-working state.
  • the touch screen does not turn on (or turn off) frequency hopping or a working mode that increases the strength of the working signal.
  • the touch screen may be considered as a non-working state.
  • the touch screen may not enable (or close) the frequency hopping or the working mode of increasing the working signal strength. It can be seen that the embodiment of the present application reduces the time for the second mode component to start the frequency hopping or increase the working signal strength of the working mode, reduces the result of the second mode component periodically querying the interference signal, and determining whether the interference signal meets a preset condition This time is conducive to saving the power consumption of the terminal and improving the response speed of the second module.
  • Step S103 may be replaced with steps S103a-S103b.
  • this embodiment of the present application provides a schematic flowchart of another touch device working method.
  • the method further includes: S101-S102, S103a, S103b, and S104-S105, as follows:
  • the first module sends first information to the processor.
  • the processor may be an application processor or a chip-on-chip (SOC).
  • SOC chip-on-chip
  • the processor here may also have a communication connection with the first module component and the second module component, respectively.
  • Other hardware is not limited in the embodiments of the present application.
  • the first information may be a working mode of the first mode component
  • the processor may further determine whether to notify the second mode component to enable frequency hopping or improve work according to the working mode of the first mode component.
  • Signal strength mode of operation The determination method of the processor is similar to the determination method of the first mold component in step S103c, and details are not described herein.
  • the processor may also directly send the working mode of the first mode component to the second mode component, and the second mode component determines whether the frequency hopping mode is turned on or the working mode of increasing the working signal strength is determined.
  • the specific determination method of the second mold component is similar to the determination method of the first mold component in step S103c, and details are not described herein.
  • the first information is a working mode for notifying the second mode component to enable frequency hopping of the second mode component or to improve the strength of the working signal.
  • the processor may forward the notification directly to the second module.
  • S103b The processor sends the second information to the second module.
  • the first information may include the working mode of the first mold component (shown in step S103a in FIG. 9), and the processor determines whether to notify the second based on the first information. If the mode component enables frequency hopping or increases the working signal strength (shown in step S103d in FIG. 9), then the second information is different from the first information, and the second information is to notify the second mode component to enable frequency hopping or A working mode for increasing the working signal strength (shown in step S103b in FIG. 9).
  • the first information may include a working mode of the first mold component (shown in step S103 a in FIG. 10), and the processor directly converts the The working mode is sent to the second mold component (shown in step S103b in FIG. 10). Then, the second information may be the same as the first information and is the working mode of the first mold component.
  • the second information when the first information is a working mode that notifies the second mode component to enable frequency hopping or to improve the working signal strength, the second information may be the same as the first information.
  • the second mode component is notified to start the frequency hopping or increase the working signal strength of the working mode (shown by steps S103a and S103b in FIG. 11).
  • the second module receives the second information sent by the processor.
  • the second information is the working mode of the first mode component.
  • the second mode component needs to determine whether to enable the frequency hopping or improve the working signal strength mode, and then execute step S104.
  • the second information is a working mode for notifying the second mode component to enable frequency hopping or to improve the working signal strength, and then the second mode component directly performs step S104.
  • step S105 can be replaced with steps S106-S107.
  • this embodiment of the present application provides a schematic flowchart of another working method of a touch device.
  • the method includes: S101-S103, S104, S106, and S107, or as shown in FIG. 13, the method includes: S101-S102, S103a, S103b, S104, S106a, S106b, and S107 are as follows:
  • the second mode component If the second mode component detects that the interference signal meets a preset condition, the second mode component sends third information to the first mode component.
  • the third information may be used to notify the first mode component of frequency hopping or reduce the working signal strength of the first mode component.
  • the third information may also notify the first mode component, and the interference of the first mode component to the second mode component also meets the preset condition, so that the first mode component determines the frequency hopping or reduces the work of the first mode component. Signal strength.
  • step S106 can be replaced with steps S106a and S106b.
  • the second mode component If the second mode component detects that the interference signal meets a preset condition, the second mode component sends third information to the processor.
  • the third information may be used to notify the first mode component of frequency hopping or reduce the working signal strength of the first mode component.
  • the third information may also notify the first mode component, and the interference of the first mode component to the second mode component also meets the preset condition, so that the first mode component determines the frequency hopping or reduces the work of the first mode component. Signal strength.
  • the processor may be a specific application processor or a chip-level system (SOC).
  • the processor here may also have a communication connection with the first module component and the second module component, respectively.
  • Other hardware is not limited in the embodiments of the present application.
  • the preset condition refers to that the frequency of the interference signal is within a sensitive frequency range of the second mode component, and the intensity of the interference signal reaches a threshold.
  • the sensitive frequency range of the second mode component is an interval near the fundamental frequency or odd harmonics of the working signal of the second mode component, and may be, for example, between 0.9 and 1.1 times the working frequency of the second mode component.
  • S106b The processor sends fourth information to the first module.
  • the fourth information and the third information may have the same content and are used to notify the first mode component of frequency hopping or reduce the working signal strength of the first mode component.
  • the third information may also notify the first mode component, and the interference of the first mode component on the second mode component meets a preset condition, so that the first mode component determines the frequency hopping or reduces the working signal of the first mode component. strength.
  • the first mode component frequency hops or reduces the working signal strength.
  • the terminal may set a plurality of preselected frequency hopping frequency points.
  • the first mode component works at frequency point 4, and the preselected frequency points include frequency point 5 and frequency point 6.
  • the first mode component switches the operating frequency point to frequency point 5. If the second mode component still detects the interference signal when switching to the frequency point 5, and the interference signal satisfies a preset condition, the first mode component switches the working frequency point to the frequency point 6 again. And so on until the interference signal is not enough to affect the normal operation of the second mode component.
  • the terminal may set a frequency point interval.
  • the operating frequency of the first mode component can be switched according to some algorithm in the frequency point interval, for example, according to a fixed value (such as 2kHZ ) Linear step switching.
  • a fixed value such as 2kHZ
  • the embodiment of the present application does not limit the specific frequency hopping manner of the touch screen.
  • the specific frequency hopping may be implemented by a crystal oscillator and a frequency divider inside the fingerprint sensor through adjustment of a counter.
  • a specific implementation manner of frequency hopping refer to the prior art, and details are not described herein again.
  • the first mode component can reduce the working signal strength through the budget amplifier part of the fingerprint sensor and adjust the working signal strength by adjusting the output level.
  • the frequency hopping of the touch screen or a working mode for increasing the strength of the working signal can be turned on. In this way, it is also possible to reduce the frequency hopping of the touch screen when the terminal is turned on or increase the working time of the working signal strength, which is beneficial to reducing the power consumption of the terminal.
  • an embodiment of the present application further provides a method for operating a touch device.
  • the method specifically includes S201-S203, as follows:
  • the terminal when the terminal detects that the touch screen receives an unlock instruction or the touch screen is in an unlocked state, the terminal may consider the touch screen to be in a working state.
  • the terminal detecting that the touch screen receives the unlocking instruction includes: the fingerprint reader is in a legal unlocking working mode, detects the user's legal fingerprint information, and after the comparison is successful, sends an unlocking instruction to the touch screen or through the processor to the touch screen.
  • the touch screen starts a working mode of frequency hopping or improving a working signal strength.
  • the touch screen Before this step, or at the same time as this step, the touch screen starts to detect the interference signal, specifically detecting the frequency of the interference signal and the intensity of the interference signal. After the touch screen starts the frequency hopping or working mode of increasing the working signal strength, the touch screen periodically reads the detection results.
  • the touch screen frequency hops or the working signal strength is increased.
  • the preset condition is that the frequency of the interference signal is within a sensitive frequency range of the operating frequency of the touch screen (that is, the frequency of the interference signal is similar to the operating frequency of the touch screen), and the intensity of the interference signal reaches a certain threshold. This is because the interference signal is located in the sensitive interval of the touch screen's operating frequency, which will affect the work of the touch screen. The intensity of the interference signal reaches a certain threshold, which will cause the touch screen to work abnormally.
  • the fingerprint reader may also frequency hop or reduce the working signal strength of the fingerprint reader to reduce the interference of the fingerprint reader on the touch screen. That is, step S203 can be replaced with steps S203a-S203b. That is, the working method of the touch device specifically includes S201-S202, 203a, and S203b, as follows:
  • the touch screen sends fourth information to the fingerprint reader.
  • the fourth information may be used to notify the fingerprint reader of frequency hopping or reduce the working signal strength of the fingerprint reader.
  • the fourth information may also be a notification to the fingerprint reader, and the interference of the fingerprint reader on the touch screen also meets a preset condition, so that the fingerprint reader determines the frequency hopping or reduces the strength of the working signal.
  • This step may refer to step S107.
  • S203a can be replaced with S204 and S205.
  • FIG. 15 this is a schematic flowchart of another working method of the touch device provided in the embodiment of the present application. , S203b, as follows:
  • the touch screen sends fifth information to the processor.
  • the processor may be an application processor or an SOC.
  • the processor herein may also be other hardware that has a communication connection with the touch screen and the fingerprint reader, respectively, which is not limited in the embodiment of the present application.
  • the fifth information may be used to notify the fingerprint reader of frequency hopping or reduce the working signal strength of the fingerprint reader.
  • the fifth information may also be a notification to the fingerprint reader, and the interference of the fingerprint reader on the touch screen also meets a preset condition, so that the fingerprint reader determines the frequency hopping or reduces the strength of the working signal.
  • S205 The processor sends fifth information to the fingerprint reader.
  • the terminal can also enable the frequency hopping of the touch screen or the working mode of increasing the working signal strength after the fingerprint reader detects the touch operation. Subsequently, if it is detected that the fingerprint reader is in the sleep state or the terminal is in the off-screen state, the frequency hopping of the touch screen is turned off or the working mode of increasing the working signal strength is turned off. In this way, it is also possible to reduce the frequency hopping of the touch screen when the terminal is turned on or increase the working time of the working signal strength, which is beneficial to reducing the power consumption of the terminal.
  • an embodiment of the present application further provides a method for operating a touch device. As shown in FIG. 17, the method specifically includes S301-S304, as follows:
  • the fingerprint reader detects a touch operation.
  • the fingerprint reader notifies the touch screen to enable the frequency hopping or the working mode of improving the working signal strength.
  • the fingerprint reader when the terminal is in the off-screen state and the screen is locked, the fingerprint reader detects the user's touch operation at time t2, and the fingerprint reader notifies the touch screen to start frequency hopping or to increase the work signal strength. mode.
  • the fingerprint reader when the terminal is in an unlocked state, the fingerprint reader detects a user's touch operation at time t5, and the fingerprint reader notifies the touch screen to start a frequency hopping operation mode or to increase the working signal strength.
  • the fingerprint reader detects the user's touch operation at time t2, and the fingerprint reader notifies the touch screen to start the frequency hopping or increase the working signal strength.
  • the touch screen starts a frequency hopping mode or a working mode for improving the working signal strength.
  • the touch screen If the touch screen detects that the interference signal meets a preset condition, the touch screen frequency hops or the working signal strength is increased.
  • the fingerprint reader if it does not detect a touch operation again within a preset time, it sleeps. In some embodiments of the present application, the fingerprint reader instructs the touch screen to turn off the frequency hopping or increase the working signal intensity before or during or after the sleep. In other embodiments of the present application, the touch screen may also actively obtain information on whether the fingerprint reader is sleeping, and when it is determined that the fingerprint reader is in the sleep state, the frequency hopping is turned off or the working mode of increasing the strength of the working signal is turned off.
  • the touch screen and fingerprint reader can communicate directly or indirectly through other hardware.
  • the touch screen turns off the frequency hopping or increases the working signal strength. For another example: if the fingerprint reader sleeps at time t6, the touch screen turns off frequency hopping or increases the working signal strength.
  • the touch screen turns off the frequency hopping or increases the working signal strength of the working mode.
  • the touch screen detects that the screen is off at time t8, the touch screen turns off the frequency hopping or the working mode of increasing the working signal strength.
  • Step S304 may also be replaced with S304a-S304b.
  • the sixth information may be used to notify the fingerprint reader of frequency hopping or reduce the working signal strength of the fingerprint reader.
  • the sixth information may also be a notification to the fingerprint reader, and the interference of the fingerprint reader on the touch screen also meets a preset condition, so that the fingerprint reader determines the frequency hopping or reduces the strength of the working signal.
  • the fingerprint reader frequency hops or reduces the working signal strength.
  • the fingerprint reader notifies the touch screen to enter the frequency hopping mode or increase the working signal strength of the working mode and subsequent steps, reference may be made to related content in other embodiments described above, and details are not repeated.
  • the terminal when the fingerprint reader is in a working state and the touch screen is bright, the terminal may enable the frequency hopping of the touch screen or a working mode for improving the strength of the working signal. Subsequently, if it is detected that the fingerprint reader is in the sleep state or the terminal is in the off-screen state, the frequency hopping of the touch screen is turned off or the working mode of increasing the working signal strength is turned off. In this way, it is also possible to reduce the frequency hopping of the touch screen when the terminal is turned on or increase the working time of the working signal strength, which is beneficial to reducing the power consumption of the terminal.
  • the above step 301 may further include that the fingerprint identifier determines that the touch screen is bright. That is, the fingerprint reader detects the touch and determines that the touch screen is bright, and notifies the touch screen to start the frequency hopping or increase the working signal strength of the working mode.
  • the fingerprint reader detects a touch operation, and notifies the touch screen to enable the frequency hopping or increase the working signal strength of the work mode.
  • the touch screen determines that it is in a bright screen state before turning on the frequency hopping or increasing the work. Signal strength mode of operation.
  • an embodiment of the present application further provides a method for operating a touch device. As shown in FIG. 18, the method specifically includes S301-S302, S303a, and S304, as follows:
  • the touch screen After receiving the notification, the touch screen detects whether it is in a bright screen state, and determines whether to enable frequency hopping or increase the working signal strength of the working mode.
  • the touch screen unlocks the bright screen, and then the touch screen determines a working mode for enabling frequency hopping or improving a working signal strength.
  • the touch screen unlocks the bright screen, and then the touch screen determines a working mode for enabling frequency hopping or improving the strength of the working signal.

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Abstract

La présente invention concerne un procédé de travail d'un appareil à commande tactile et un terminal, se rapportant au domaine technique de la communication, et permettant de réduire l'interférence mutuelle entre différents appareils à commande tactile dans un terminal, ce qui permet d'améliorer l'expérience d'utilisation du terminal ; le procédé comprend plus particulièrement : après la détection d'une opération tactile d'un utilisateur, la détermination par un identifiant d'empreinte digitale du mode de travail de l'identifiant d'empreinte digitale ; si le mode de travail de l'identifiant d'empreinte digitale est un mode de travail prédéfini, démarrage par un écran tactile d'un mode de travail de saut de fréquence ou d'augmentation d'intensité du signal de travail ; et, si l'écran tactile détecte qu'un signal d'interférence satisfait une condition prédéfinie, la réalisation d'un saut de fréquence ou l'augmentation de l'intensité du signal de travail par un capteur tactile dans l'écran tactile.
PCT/CN2018/097702 2018-07-28 2018-07-28 Procédé de travail d'un appareil à commande tactile et terminal WO2020024087A1 (fr)

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CN201880093440.2A CN112119390A (zh) 2018-07-28 2018-07-28 一种触控装置的工作方法及终端
PCT/CN2018/097702 WO2020024087A1 (fr) 2018-07-28 2018-07-28 Procédé de travail d'un appareil à commande tactile et terminal

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