CN110431518A - A kind of method and electronic equipment exporting touching signals - Google Patents

Abstract

The present invention provides it is a variety of output touching signals methods and electronic equipment, the electronic equipment it is uncharged or charging when charging current be less than or equal to the first current threshold, the electronic equipment touch device output touching signals be the first touching signals；The electronic equipment is in charging and charging current is greater than first current threshold, the touching signals of the touch device output are the second touching signals.The electronic equipment is when uncharged, export a touching signals, the electronic equipment is during the charging process, the touching signals of the touch device output are properly increased according to charging current, to which interference of the charging noise to touching signals be effectively reduced, while battery capacity excessive loss is avoided when uncharged.

Description

Method for outputting touch signal and electronic equipment

The present application claims priority from chinese patent application filed on 13/3/2017 under the name of "method and terminal for reducing charging noise interference" with the application number of 201710147628.8, which is incorporated herein by reference in its entirety.

Technical Field

The present invention relates to the field of electronic technologies, and in particular, to a method for outputting a touch signal and an electronic device.

Background

With the continuous development of communication technology, electronic devices, such as mobile phones, tablet computers, and the like, are becoming more and more popular in people's daily life. The electronic equipment is provided with various touch control devices and can provide a human-computer interaction function. The Touch device may include a Touch screen (TP) capable of detecting a Touch position, a fingerprint identifier capable of identifying fingerprint lines, and the like. The touch screen can adopt a capacitance type or pressure type identification technology, and the fingerprint recognizer can adopt optical imaging, ultrasonic reflection, semiconductor capacitance change and other identification technologies. Among them, the projected Capacitive (projected Capacitive) touch technology is widely used in the current electronic devices due to its characteristics of mature technology, high recognition rate, and the like.

However, the touch device is still affected by the electromagnetic interference during charging, and particularly, the touch device using the projected capacitive touch technology is affected more greatly. When a general mobile phone is in a charging state, common-mode noise of a charger enters the inside of the mobile phone through a charging port (usually a USB interface), and since a charging circuit of the mobile phone is very close to a touch display screen/fingerprint identifier, a part of charging noise is coupled to the touch display screen/fingerprint identifier, and the working state of the touch display screen/fingerprint identifier is not changed effectively aiming at the noise, when the mobile phone is charged, a user uses a touch device, problems of no touch reaction, dialing linkage, screen jumping disorder, automatic opening of an application, failure in fingerprint unlocking and the like occur, and the use experience is seriously affected.

Fig. 1 illustrates a time domain and frequency domain signal diagram of a touch signal (TP signal) of a touch device in the prior art, and fig. 2 illustrates a frequency domain signal diagram of a TP signal detected on a touch screen surface. Referring to fig. 1, the TP signal has a constant signal strength in the uncharged state and the charged state, wherein the TP signal is free from charging noise interference in the uncharged state, and can normally identify various operations of the user and give a correct response, while in the charged state, the charging noise is coupled to the TP signal, and may be identified as a user operation, which may cause problems such as automatic touch, erroneous contact during the user's real operation, and the like. As shown in fig. 2, when there is a large charging noise, the TP signal is "buried" in the charging noise, so that the touch function cannot be used normally.

With the more compact layout of electronic devices and the further reduction in chip size, touch screens and fingerprint identifiers are more sensitive to external interference, and thus the problem of charging interference with touch screens and fingerprints is more serious.

Disclosure of Invention

In order to solve the foregoing technical problems, embodiments of the present invention provide various methods for outputting a touch signal and electronic devices, so as to effectively reduce interference of charging noise on the touch signal output by the touch device.

According to a first aspect of the present invention, a method for outputting a touch signal is provided, wherein the method includes: when the electronic equipment is not charged or the charging current is less than or equal to a first current threshold value during charging, a touch signal output by a touch device of the electronic equipment is a first touch signal; when the electronic device is charged and the charging current is greater than the first current threshold, the touch signal output by the touch device is a second touch signal, wherein the signal intensity of the second touch signal is greater than the signal intensity of the first driving signal. That is to say, when the electronic device is not charged, the touch device outputs a touch signal when operating, and when the electronic device is charged, the touch signal output by the touch device when operating is properly increased according to the charging current, so that the interference of charging noise on the touch signal is effectively reduced, and the excessive loss of the battery capacity when the electronic device is not charged can be reduced.

Wherein the first current threshold may be zero or a value greater than zero.

In some possible implementations, the first current threshold is set to zero, the method including: when the electronic equipment is not charged, a touch signal output by a touch device of the electronic equipment is the first touch signal; when the electronic device is charged, the touch signal output by the touch device is the second touch signal.

In some possible implementations, the first current threshold is set to a value greater than zero, and the method includes: when the electronic equipment is not charged or the charging current is less than or equal to the first current threshold value during charging, a touch signal output by a touch device of the electronic equipment is the first touch signal; when the charging current of the electronic device is greater than the first current threshold, the touch signal output by the touch device is the second touch signal.

In some embodiments, the electronic device adjusts the touch signal output by the touch device when the touch device is operated by adjusting the touch driving voltage and/or the touch driving current of the touch device.

In some embodiments, wherein the method further comprises: when the electronic device is charged and the charging current of the electronic device is greater than the second current threshold, the touch signal output by the touch device is a third touch signal, wherein the signal intensity of the third touch signal is greater than the signal intensity of the second touch signal, and the second current threshold is greater than the first current threshold.

In some embodiments, when the electronic device is charging and the charging current is greater than the first current threshold, the method further comprises: and detecting a charging current value, and adjusting the signal intensity of the second touch signal according to the charging current value, wherein the signal intensity of the second touch signal is linearly or nonlinearly increased along with the increase of the charging current.

In some embodiments, when the electronic device is charging and the charging current is greater than the first current threshold, the method further comprises: detecting an amplitude of charging noise at a frequency corresponding to the frequency of the second touch signal, and adjusting the signal intensity of the second touch signal according to the amplitude of the charging noise at the frequency, wherein the signal intensity of the second touch signal increases linearly, nonlinearly, or regionally with the increase of the amplitude of the charging noise at the frequency.

In combination with any of the embodiments of the first aspect, in this embodiment, the method further comprises: and when the touch signal output by the touch device is the second touch signal, displaying a prompt message on a display screen of the electronic equipment.

In another possible implementation manner, the method further includes: when the touch signal output by the touch device is the first touch signal, displaying a first prompt message on a display screen of the electronic equipment; when the touch signal output by the touch device is the second touch signal, displaying a second prompt message on a display screen of the electronic equipment, wherein the second prompt message is different from the first prompt message.

In combination with any of the embodiments of the first aspect, in this embodiment, the method further comprises: when the electronic equipment is charged and the charging current is larger than the first current threshold, detecting the signal intensity of the charging noise corresponding to the frequency of the second touch signal; when the signal intensity of the charging noise corresponding to the frequency is greater than the signal intensity threshold, adjusting the frequency of the second touch signal, so that the signal intensity of the charging noise corresponding to the adjusted frequency of the second touch signal is less than the signal intensity threshold. The frequency of the second touch signal is adjusted, so that the interference of charging noise on the touch signal can be further reduced.

According to a second aspect of the present invention, an electronic device is provided, which includes a charging detection device, a control device and a touch device; the charging detection device is used for detecting whether the electronic equipment is charged and the charging current during charging; the control device is used for controlling the touch device to output a touch signal; when the charging detection device detects that the electronic equipment is not charged or the charging current is less than or equal to a first current threshold value during charging, the control device controls the touch signal output by the touch device to be a first touch signal; when the charging device detects that the electronic equipment is charged and the charging current is larger than the first current threshold, the control device controls the touch device to output a second touch signal, wherein the signal intensity of the second touch signal is larger than the signal intensity of the first touch signal.

Wherein the first current threshold may be zero or a value greater than zero.

In some possible implementations, the first current threshold is set to zero, and when the charging detection device detects that the electronic device is not being charged, the control device controls the touch signal output by the touch device to be the first touch signal; when the charging detection device detects that the electronic equipment is being charged, the control device controls the touch signal output by the touch device to be the second touch signal.

In some possible implementations, the first current threshold is set to a value greater than zero, and when the charging detection device detects that the electronic device is not being charged or the charging current is less than or equal to the first current threshold while the electronic device is being charged, the control device controls the touch signal output by the touch device to be the first touch signal; when the charging current of the electronic device is greater than the first current threshold, the control device controls the touch signal output by the touch device to be the second touch signal.

In some embodiments, the charging detection device may be a charging management chip, the control device may include a main control chip and a touch control chip, and the touch device may be a touch pad, a fingerprint recognizer, a touch display screen (i.e., a touch screen), or the like.

The touch device can be a capacitance recognition type touch device.

In some embodiments, the control device is configured to adjust a touch driving voltage and/or a touch driving current of the touch device to adjust a touch signal output by the touch device.

In some embodiments, when the charging detection device detects that the electronic device is being charged and the charging current is greater than the second current threshold, the control device controls the touch signal output by the touch device to be a third touch signal, and the touch signal output by the touch device is a third touch signal, where the signal intensity of the third touch signal is greater than the signal intensity of the second touch signal, and the second current threshold is greater than the first current threshold.

In some embodiments, the control device obtains a value of a charging current detected by the charging detection device, and adjusts a signal strength of the second touch signal according to the value of the charging current, wherein the signal strength of the second touch signal increases linearly or nonlinearly with an increase of the charging current.

In some embodiments, the control device obtains a value of the charging current detected by the charging detection device, and adjusts the signal strength of the second touch signal according to the value of the charging current, wherein the signal strength of the second touch signal increases linearly or non-linearly with an increase in the amplitude of the charging noise.

With reference to any one of the embodiments of the second aspect, in this embodiment, the electronic device further includes: the display device is used for displaying a first prompt message when the touch device outputs the touch signal as the first touch signal, and displaying a second prompt message when the touch device outputs the touch signal as the second touch signal, wherein the second prompt message is different from the first prompt message.

With reference to any one of the embodiments of the second aspect, in this embodiment, the electronic device further includes: the noise signal detection device is used for detecting the signal intensity of the charging noise corresponding to the frequency of the second touch signal when the electronic equipment is charged and the charging current is greater than the first current threshold; the control device is further configured to, when the noise signal detection device detects that the signal intensity of the charging noise corresponding to the frequency of the second touch signal is greater than a signal intensity threshold, control the touch device to adjust the frequency of the output second touch signal, so that the charging noise signal intensity corresponding to the adjusted frequency of the second touch signal is smaller than the signal intensity threshold. The frequency of the second touch signal is adjusted, so that the interference of charging noise on the touch signal can be further reduced.

According to a third aspect of the present invention, there is provided a graphical user interface on an electronic device having a display device, wherein the graphical user interface comprises: and displaying a display interface on a display device, wherein when the touch signal output by the touch device in the electronic equipment according to the method in each embodiment of the first aspect is the second touch signal, notification information is displayed on the display interface.

According to a fourth aspect of the present invention, there is provided an electronic apparatus comprising: a touch device; one or more processors; a memory; and one or more application programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the first one or more programs including instructions for: detecting whether the electronic equipment is charged and the charging current during charging; when the electronic equipment is detected not to be charged or the charging current is less than or equal to a first current threshold value during charging, controlling a touch signal output by the touch device to be a first touch signal; when the electronic equipment is detected to be charged and the charging current is larger than the first current threshold, controlling the touch device to output a second touch signal, wherein the signal intensity of the second touch signal is larger than the signal intensity of the first touch signal.

In some embodiments, the one or more programs further include instructions for: and adjusting the touch signal output by the touch device by adjusting the touch driving voltage and/or the touch driving current of the touch device.

In some embodiments, the one or more programs further include instructions for: when the electronic device is charged and the charging current of the electronic device is greater than the second current threshold, controlling the touch signal output by the touch device to be a third touch signal, wherein the signal intensity of the third touch signal is greater than the signal intensity of the second touch signal, and the second current threshold is greater than the first current threshold.

In some embodiments, the electronic device, while charging and the charging current is greater than the first current threshold, the one or more programs further include instructions for: and detecting a charging current value, and adjusting the signal intensity of the second touch signal according to the charging current value, wherein the signal intensity of the second touch signal is linearly or nonlinearly increased along with the increase of the charging current.

With reference to any one of the embodiments of the fourth aspect, in this embodiment, the electronic device further includes a display screen, and the one or more programs further include instructions for: when the touch signal output by the touch device is the first touch signal, displaying a first prompt message on a display screen of the electronic equipment; when the touch signal output by the touch device is the second touch signal, displaying a second prompt message on a display screen of the electronic equipment, wherein the second prompt message is different from the first prompt message.

In combination with any of the embodiments of the fourth aspect, in this embodiment, the one or more programs further include instructions for: when the electronic equipment is charged and the charging current is larger than the first current threshold, detecting the signal intensity of the charging noise corresponding to the frequency of the second touch signal; when the signal intensity of the charging noise corresponding to the frequency is greater than the signal intensity threshold, adjusting the frequency of the second touch signal, so that the signal intensity of the charging noise corresponding to the adjusted frequency of the second touch signal is less than the signal intensity threshold.

According to a fifth aspect of the present invention, there is provided a computer-readable storage medium, comprising instructions, which, when run on an electronic device having a touch device, cause the electronic device to perform the method of any of the embodiments of the first aspect.

According to a sixth aspect of the present invention, there is provided a first computer program product, which, when run on an electronic device having a touch sensing device, causes the electronic device to perform the method according to any of the embodiments of the first aspect.

It should be appreciated that the description of technical features, solutions, benefits, or similar language, in this disclosure does not imply that all of the features and advantages may be realized in any single embodiment. Rather, it is to be understood that the description of a feature or advantage is intended to include the specific features, aspects or advantages in at least one embodiment. Therefore, the descriptions of technical features, technical solutions or advantages in the present specification do not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and advantages described in the present embodiments may also be combined in any suitable manner. One skilled in the relevant art will recognize that an embodiment may be practiced without one or more of the specific features, aspects, or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below.

Fig. 1 illustrates a time domain signal diagram and a frequency domain signal diagram of a touch signal of a touch device in the prior art;

FIG. 2 shows a frequency domain signal diagram of the detection of a TP signal at the touch screen surface;

FIG. 3 illustrates a hardware architecture diagram of a handset in some embodiments of the invention;

FIG. 4 is a schematic diagram of an external structure of the electronic device according to some embodiments of the invention;

FIG. 5 illustrates a schematic structural diagram of a capacitive touch screen in some embodiments of the present invention;

FIGS. 6a and 6b are schematic diagrams illustrating a schematic structure of a touch display screen according to some embodiments of the invention;

FIGS. 7a and 7b are schematic diagrams illustrating changes in capacitance between the drive and sense electrodes without and with touches in some embodiments of the invention;

FIG. 8 is a signal timing diagram illustrating a touch signal detection process in some embodiments of the invention;

FIG. 9 is a schematic diagram of a schematic structure of a fingerprint recognizer in some embodiments of the invention;

FIG. 10 is a schematic diagram illustrating an electronic device charging process in some embodiments of the inventions;

fig. 11 is a flowchart illustrating a method of outputting a touch signal by an electronic device according to some embodiments of the invention;

FIG. 12 is a schematic diagram of time domain and frequency domain signals of a touch signal in an uncharged and charged state of an electronic device according to some embodiments of the present invention;

FIG. 13 is a schematic diagram of time domain and frequency domain signals of a touch signal and a charge signal in an uncharged state and a charged state according to some embodiments of the present invention;

FIG. 14 is a flow chart illustrating a signal control method according to further embodiments of the present invention;

fig. 15 is a schematic diagram of an apparatus structure of an electronic device according to some embodiments of the invention;

fig. 16 is a flowchart illustrating a method for outputting a touch signal by an electronic device according to some embodiments of the present invention;

fig. 17 is a schematic flow chart illustrating an interface when the touch signal output by the touch device of the electronic device according to some embodiments of the present invention is the second touch signal.

In the drawings, like reference numerals designate corresponding parts throughout the several views. It is to be expressly understood that the drawings in the following description are only illustrative of some embodiments of the invention and are not intended to be exhaustive. For a person skilled in the art, it is possible to derive other figures from these figures without inventive effort.

Detailed Description

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the description of the invention and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as may be used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The electronic Device mentioned in the embodiments of the present invention is a touch Device (i.e. a capacitive touch Device) using projected capacitive technology, and the electronic Device may be a mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Digital camera, a Digital video camera, a projection Device, a Personal Digital Assistant (Personal Digital Assistant, abbreviated as PDA), an E-book Reader (english: E-book Reader) or a Wearable Device (Wearable Device), a virtual reality smart Device, and the like.

Fig. 3 is a schematic diagram illustrating a hardware structure of a mobile phone in some embodiments of the present invention, and as shown in fig. 3, the electronic device in the embodiments of the present invention may be a mobile phone 100. The embodiment will be specifically described below by taking the mobile phone 100 as an example. It should be understood that the illustrated cell phone 100 is only one example of an electronic device, and that the cell phone 100 may have more or fewer components than shown in the figures, may combine two or more components, or may have a different configuration of components. The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

As shown in fig. 3, the mobile phone 100 may specifically include: processor 101, Radio Frequency (RF) circuitry 102, memory 103, touch screen 104, bluetooth device 105, one or more sensors 106, Wi-Fi device 107, positioning device 108, audio circuitry 109, peripheral interface 110, power supply 111, and fingerprint acquisition device (i.e., fingerprint recognizer) 112. These components may communicate over one or more communication buses or signal lines (not shown in fig. 3). Those skilled in the art will appreciate that the hardware configuration shown in fig. 3 is not intended to be limiting of the handset 100, and that the handset 100 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The various components of the handset 100 are described in detail below with reference to fig. 3.

The processor 101 is a control center of the mobile phone 100, connects various parts of the mobile phone 100 by using various interfaces and lines, and executes various functions and processes data of the mobile phone 100 by running or executing an application program (hereinafter, may be abbreviated as App) stored in the memory 103 and calling data and instructions stored in the memory 103. In some embodiments, processor 101 may include one or more processing units; processor 101 may also integrate an application processor and a modem processor; the application processor mainly processes an operating system, a user interface, application programs and the like, and the modem processor mainly processes wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 101. The processor 101 may be an integrated chip. In some embodiments of the present invention, the processor 101 may further include a fingerprint verification chip, configured to verify the acquired fingerprint.

The rf circuit 102 may be used for receiving and transmitting wireless signals during the transmission and reception of information or calls. Specifically, the rf circuit 102 may receive downlink data of the base station and then process the received downlink data to the processor 101; in addition, data relating to uplink is transmitted to the base station. Typically, the radio frequency circuitry includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency circuitry 102 may also communicate with other devices via wireless communication. The wireless communication may use any communication standard or protocol including, but not limited to, global system for mobile communications, general packet radio service, code division multiple access, wideband code division multiple access, long term evolution, email, short message service, and the like.

The memory 103 is used for storing application programs and data, and the processor 101 executes various functions and data processing of the mobile phone 100 by running the application programs and data stored in the memory 103. The memory 103 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and application programs (such as a sound playing function and an image playing function) required by at least one function; the storage data area may store data (e.g., audio data, a phonebook, etc.) created from use of the handset 100. Further, the memory 103 may include high speed random access memory, and may also include non-volatile memory, such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device. The memory 103 may store various operating systems, such as those developed by apple Inc

Operating System, developed by Google

An operating system, etc.

The touch screen 104 may include a touch pad 104-1 and a display 104-2. Wherein the touch pad 104-1 can capture touch events on or near the touch pad 104-1 by a user of the cell phone 100 (e.g., user operation on or near the touch pad 104-1 using any suitable object such as a finger, a stylus, etc.), and transmit the captured touch information to other devices, such as the processor 101. Among them, a touch event of a user near the touch pad 104-1 can be called a hover touch; hover touch may refer to a user not having to directly contact the touchpad in order to select, move, or drag a target (e.g., an icon, etc.), but rather only having to be located near the electronic device in order to perform a desired function. In the context of a hover touch application, the terms "touch," "contact," and the like do not imply a direct contact to the touch screen, but rather a nearby or near contact. The touch panel 104-1 capable of floating touch can be implemented by using capacitive type, infrared light sensing, ultrasonic wave, and the like. The touch pad 104-1 may include two portions, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 101, and the touch controller can also receive and execute instructions sent by the processor 101. In addition, the touch pad 104-1 can be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. Display (also referred to as a display screen) 104-2 may be used to display information entered by or provided to the user as well as various menus for handset 100. The display 104-2 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The trackpad 104-1 may be overlaid on the display 104-2, and when the trackpad 104-1 detects a touch event thereon or nearby, it is communicated to the processor 101 to determine the type of touch event, and the processor 101 may then provide a corresponding visual output on the display 104-2 based on the type of touch event. Although in FIG. 3 the touch pad 104-1 and the display screen 104-2 are shown as two separate components to implement the input and output functions of the cell phone 100, in some embodiments the touch pad 104-1 and the display screen 104-2 may be integrated to implement the input and output functions of the cell phone 100. It is understood that the touch screen 104 is formed by stacking multiple layers of materials, and only the touch pad (layer) and the display screen (layer) are shown in the embodiment of the present invention, and other layers are not described in the embodiment of the present invention. In addition, in some other embodiments of the present invention, the touch pad 104-1 may be covered on the display 104-2, and the size of the touch pad 104-1 is larger than that of the display screen 104-2, so that the display screen 104-2 is completely covered under the touch pad 104-1, or the touch pad 104-1 may be disposed on the front surface of the mobile phone 100 in a full-panel manner, that is, the touch of the user on the front surface of the mobile phone 100 can be sensed by the mobile phone, so that the full-touch experience on the front surface of the mobile phone can be realized. In other embodiments, the touch pad 104-1 is disposed on the front surface of the mobile phone 100 in a full-panel manner, and the display screen 104-2 may also be disposed on the front surface of the mobile phone 100 in a full-panel manner, so that a Bezel-free (Bezel) structure can be implemented on the front surface of the mobile phone.

In the embodiment of the present invention, the mobile phone 100 may further have a fingerprint recognition function. For example, the fingerprint identifier 112 (also called a fingerprint acquisition device) may be disposed on the back side of the handset 100 (e.g., below the rear camera), or the fingerprint identifier may be disposed on the front side of the handset 100 (e.g., below the touch screen 104). In some embodiments, a fingerprint recognizer 112 is disposed below the touch screen 104 of the handset 100, and the fingerprint recognizer 112 may capture a fingerprint once in a touch event. In some embodiments, there is an area 201 for placing cameras on the back of the mobile phone 100, and two cameras are configured in the area 201 to enhance the quality of the acquired images; below this area 201 a fingerprint identifier 112 is arranged, which fingerprint identifier 112 can capture a fingerprint once in a touch event.

In addition, the fingerprint identification function can also be realized by configuring the fingerprint recognizer 112 in the touch screen 104, that is, the fingerprint recognizer 112 can be integrated with the touch screen 104 to realize the fingerprint identification function of the mobile phone 100. In this case, the fingerprint identifier 112 may be disposed in the touch screen 104, may be a part of the touch screen 104, or may be otherwise disposed in the touch screen 104. For example, where multiple fingerprint identifiers are deployed at four different locations on the touch screen 104, the touch screen 104 may capture multiple touch events simultaneously, with only one fingerprint of one touch event or all fingerprints of all touch events being captured simultaneously. In other embodiments, the plurality of fingerprint sensors may be located on the lower half of the touch screen 104, and in particular, the fingerprint sensor 112 may be disposed in the area of the touch screen 104 that is accessible to the thumb of the user when holding the mobile phone 100, which may facilitate one-handed operation of the mobile phone.

Alternatively, the fingerprint identifier 112 may be implemented as a full panel fingerprint identifier, and thus, the touch screen 104 may be considered a panel that may be fingerprinted anywhere. The fingerprint identifier 112 may send the captured fingerprint to the processor 101 for processing (e.g., fingerprint verification, etc.) by the processor 101. The main component of the fingerprint identifier 112 in the present embodiment is a fingerprint sensor.

In embodiments of the present invention, the fingerprint may be captured at a fixed location in the touch screen 104; fingerprints may also be taken anywhere on the touch screen 104; multiple touch events may also be acquired simultaneously on touch screen 104, and fingerprint identifier 112 may acquire only one fingerprint for one of the touch events or all fingerprints for all touch events simultaneously. For a specific technology for integrating a fingerprint identifier in a touch screen in the embodiment of the present invention, some specific technical solutions in the prior art may be referred to, and details are not described herein. The handset 100 may also include a bluetooth device 105 for enabling data exchange between the handset 100 and other short-range electronic devices (e.g., cell phones, smartwatches, etc.). The bluetooth device in the embodiment of the present invention may be an integrated circuit or a bluetooth chip.

The handset 100 may also include at least one sensor 106, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display of the touch screen 104 according to the brightness of ambient light, and a proximity sensor that turns off the power of the display when the mobile phone 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone 100, further description is omitted here.

The Wi-Fi device 107 is used for providing network access for the mobile phone 100 according to Wi-Fi related standard protocols, the mobile phone 100 can be accessed to a Wi-Fi access point through the Wi-Fi device 107, so that the mobile phone helps a user to send and receive e-mails, browse webpages, access streaming media and the like, and wireless broadband internet access is provided for the user. In other embodiments, the Wi-Fi apparatus 107 can also be a Wi-Fi wireless access point, which can provide Wi-Fi network access to other electronic devices.

And a positioning device 108 for providing a geographical position for the handset 100. It is understood that the positioning device 108 may be a receiver of a Global Positioning System (GPS) or a positioning system such as the beidou satellite navigation system, russian GLONASS, etc. After receiving the geographical location transmitted by the positioning system, the positioning device 108 transmits the information to the processor 101 for processing or transmits the information to the memory 103 for storage. In other embodiments, the positioning device 108 can be an Assisted Global Positioning System (AGPS) receiver, wherein AGPS is an operation mode for GPS positioning with certain assistance, and can utilize signals from base stations in cooperation with GPS satellite signals to enable the mobile phone 100 to perform positioning faster; in AGPS systems, the positioning device 108 may obtain positioning assistance through communication with an assisted positioning server (e.g., a cell phone positioning server). The AGPS system provides positioning assistance by serving as an assistance server to assist the positioning device 108 in performing ranging and positioning services, in which case the assistance positioning server communicates with the positioning device 108 (i.e., GPS receiver) of an electronic device, such as the handset 100, over a wireless communication network. In other embodiments, the location device 108 may also be a Wi-Fi access point based location technology. Because each Wi-Fi access point has a globally unique MAC address, the electronic equipment can scan and collect broadcast signals of the surrounding Wi-Fi access points under the condition of starting Wi-Fi, and therefore the MAC addresses broadcasted by the Wi-Fi access points can be obtained; the electronic device sends the data (such as the MAC address) capable of identifying the Wi-Fi access points to the location server through the wireless communication network, the location server retrieves the geographical location of each Wi-Fi access point, and calculates the geographical location of the electronic device according to the strength of the Wi-Fi broadcast signal and sends the geographical location of the electronic device to the positioning device 108 of the electronic device.

The audio circuitry 109, speaker 113, microphone 114 can provide an audio interface between a user and the handset 100. The audio circuit 109 may transmit the electrical signal converted from the received audio data to the speaker 113, and convert the electrical signal into a sound signal by the speaker 113 for output; on the other hand, the microphone 114 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 109, and outputs the audio data to the RF circuit 102 to be transmitted to, for example, another cellular phone, or outputs the audio data to the memory 103 for further processing.

Peripheral interface 110, which is used to provide various interfaces for external input/output devices (e.g., keyboard, mouse, external display, external memory, SIM card, etc.). For example, a mouse via a Universal Serial Bus (USB) interface, and a subscriber identity module card (SIM) card provided by a telecommunications carrier via metal contacts on a SIM card slot. Peripheral interface 110 may be used to couple the aforementioned external input/output peripherals to processor 101 and memory 103.

The mobile phone 100 may further include a power supply device 111 (for example, including at least one of a battery, a power management chip, a charging management chip, and the like) for supplying power to each component, and the battery may be logically connected to the processor 101 through the power management chip, so as to implement functions of managing charging, discharging, and power consumption through the power supply device 111.

Although not shown in fig. 3, the mobile phone 100 may further include a camera (front camera and/or rear camera), a flash, a micro-projector, a Near Field Communication (NFC) device, and the like, which are not described in detail herein.

The following embodiments can be implemented in the cellular phone 100 having the above-described structure.

Fig. 4 shows an external view of an electronic device according to some embodiments of the present invention, where the electronic device may be a mobile phone 100, the electronic device has a touch display screen 104 and a fingerprint recognizer 112, and a graphical user interface, such as icons 120 of various applications exemplarily shown in fig. 4, is displayed on the touch display screen 104. In addition, the device with the visible appearance of the electronic equipment also comprises any one or a combination of the following components: various interfaces such as a speaker 113, a microphone 114, a charging interface, and an earphone, various physical keys such as a volume key and a lock screen key, a camera, a flash, and the like.

In some embodiments, as shown in fig. 4, the touch-sensitive display 104 and the fingerprint recognizer 112 may be located in two areas of the same side of the cell phone 100. In some embodiments, the touch display screen 104 and the fingerprint recognizer 112 on the electronic device may also be located on two opposite sides of the mobile phone 100, for example, the touch display screen 104 is on the front side, and the fingerprint recognizer 112 is on the back side. In other embodiments, the touch display screen 104 and the fingerprint identifier 112 may also be located in the same area, and are not described again.

When the touch display screen 101 displays content, the touch position of a finger or a touch pen on the surface of the touch area can be detected, so that a mouse or an external touch pad is replaced, and a user can conveniently perform interactive operation on the display content of the touch display screen.

The touch display screen 104 may be implemented in various ways. As shown in fig. 3, taking the capacitive touch display 300 as an example, the capacitive touch display 300 includes an insulator covered by a transparent conductor formed on a specific layout. When a finger or other object touches the screen surface, the capacitance changes, and the processor 101 can determine the touch position by detecting the change in capacitance.

The capacitive touch display screen 300 has a capacitive sensing structure, which may be a mutual capacitive sensing structure or a self capacitive sensing structure, wherein the self capacitive sensing structure includes a plurality of individual electrodes (individual electrodes), and the mutual capacitive sensing structure includes a driving electrode and an induction electrode.

Fig. 5 shows a schematic structural diagram of a capacitive touch screen in some embodiments of the present invention, in which a capacitive touch display screen 300 has a touch sensing area, and a sensing structure is disposed in the touch sensing area, the sensing structure includes a plurality of driving electrodes 301 and a plurality of sensing electrodes 302, and the driving electrodes 301 and the sensing electrodes 301 may be light-transmissive organic or light-transmissive inorganic conductive materials, such as ito (indium Tin oxide), ato (inorganic Tin oxide), to (Tin oxide), or other conductive polymers, such as Carbon nanotubes (Carbon nanotubes).

In some embodiments, the capacitive touch display screen may employ multiple ITO layers, the driving electrodes 301 and the sensing electrodes 301 are distributed in a matrix form, and the X axis and the Y axis that are perpendicular to each other are distributed in a crossed manner to serve as a capacitance matrix.

The driving electrode 301 and the sensing electrode 302 may be disposed on a substrate and insulated from each other, wherein the substrate may be a transparent non-conductive material, such as glass or plastic. The plastic substrate material may be, but not limited to, pet (polyethylene terephthalate), pen (polyethylene naphthalate), pc (polycarbonate), and the like.

Fig. 6a and 6b are schematic structural diagrams illustrating a touch display screen in some embodiments of the invention, as shown in fig. 6a, the driving electrode 301 and the sensing electrode 302 are disposed on opposite sides of a substrate 303a, the substrate 303a electrically insulates the driving electrode 301 and the sensing electrode 302 from each other, a transparent insulating medium 304 and a transparent cover 305 are formed on the driving electrode 301, the insulating medium 304 may be a transparent adhesive, and the transparent cover 305 may be plastic or glass. As shown in fig. 6b, the driving electrode 301 and the sensing electrode 302 are disposed on different substrates 303b and 303c, respectively, and an insulating medium is formed between the driving electrode 301 and the sensing electrode 302.

The mutual capacitance touch display screen 300 senses a change in capacitance between the driving electrode line and the sensing electrode line detected on the sensing electrode line before and after a touch operation or a proximity operation. The touch or proximity of the finger to the touch device causes a capacitance change, which causes a change in the voltage or charge detected by the detection circuit, and the processor 101 can confirm the touch event through the detected voltage or charge change. The mutual capacitance touch screen 300 supplies a driving signal to the driving electrode lines and detects sensing electrode lines in synchronization with the driving signal, sensing a capacitance change between the driving electrode 301 and the sensing electrode 302. The driving signal may be generated in various forms, including square wave pulse, sine wave pulse, triangular wave pulse, etc. The mutual capacitance touch display screen 300 utilizes a driving electrode 301 and a sensing electrode 302 for capacitance detection, the driving electrode 301 and the sensing electrode 302 are connected with a processor through a wiring, the processor 101 outputs a driving control signal to the driving electrode 301, capacitance change can occur between the driving electrode 301 and the sensing electrode 302 in a non-touch state and a touch state, and the processor 101 can determine a touch position coordinate according to the detected change of a sensing signal (capacitance detection signal) on the sensing electrode 302.

Fig. 7a and 7b are schematic diagrams illustrating capacitance changes between the driving electrodes and the sensing electrodes in the case of no touch and with touch in some embodiments of the present invention, as shown in fig. 7a, when there is no touch, capacitance between one driving electrode and one sensing electrode is Cm1, as shown in fig. 7b, when there is touch, capacitance change between one driving electrode and one sensing electrode is a capacitance formed by connecting Cm1 and Cm in series, and the processor 101 may detect the capacitance change through the sensing electrodes, and specific calculation formulas are not repeated.

Fig. 8 is a signal timing diagram illustrating a touch signal detecting process according to some embodiments of the present invention, when the processor 101 sequentially inputs the driving signal Tx (Tx1, Tx2, … TxN, where N is a natural number) to each driving electrode 301, when all the driving electrodes are scanned once for a detecting period, and then the processor 101 sequentially inputs the driving signal Tx to each driving electrode 301 from the beginning, and thus periodically performs a cyclic detection. The processor 101 detects the voltage VINT through the sensing electrode 302, and compares the voltage VINT with the reference voltage VREF to obtain a capacitance detection signal, when there is a touch, in combination with fig. 5b, the capacitance between the driving electrode 301 and the sensing electrode 302 changes, so that the voltage VINT changes, and the capacitance detection signal also changes, and the processor 101 can determine the touch position according to the change of the capacitance detection signal.

The touch position sensor described above may be used to detect the position of a finger or a stylus.

Similarly, the structure of the fingerprint identifier 112 may be similar to the structure of the touch device in the touch display screen 104 and may be smaller in size, fig. 9 shows a schematic diagram of a schematic structure of the fingerprint identifier according to some embodiments of the present invention, for example, the structure shown in fig. 9, the fingerprint identifier 112 is used for detecting the fingerprint pattern, the actual distance between the contact flat plate at the convex point and the contact flat plate at the concave point is different due to uneven finger pattern, the formed capacitance/inductance value is also different, the fingerprint identifier may detect the fingerprint pattern, the fingerprint identifier 112 outputs a touch signal, and sums the collected different capacitance detection values according to the principle to the processor 101 to complete fingerprint collection, and may compare and determine whether the detected pattern is the same as one of the one or more pre-stored fingerprint patterns according to the detected pattern, to perform fingerprint verification and further perform other interactive actions.

As shown in fig. 10, which is a schematic diagram of charging an electronic device with a charger 200, when the charger 200 is connected to an external power source and the electronic device is not being charged, a power device 111 in the electronic device may cooperate with a processor 101 to complete a charging process and send information such as a charging state to the processor 101, and the processor 101 may know whether the electronic device is in a charging state, a charging current in the charging state, and the like, as shown in fig. 10, in a conventional electronic device, a charging port of the electronic device is closer to a touch device such as the fingerprint identifier 112 and the touch display screen 104, so as to avoid interference of charging noise on a touch display signal, an embodiment of the present invention provides a method for controlling the touch device to output a touch signal by the electronic device, and in a non-charging stage, a touch signal of the touch device is set at a lower amplitude (i.e. lower signal intensity), the power consumption can be saved, the service life of the battery can be prolonged, the signal intensity of the touch signal of the touch device is improved in the charging state or when the charging current is larger than a certain threshold value, the interference of charging noise on the touch signal is reduced, the influence of charging on the touch device on the electronic equipment is further reduced, and the touch device can work normally when the mobile phone is charged.

In the following, with reference to the drawings in the embodiments of the present invention, a touch display screen is taken as an example to further describe the technical solution in the embodiments of the present invention, and it should be understood that the method implemented in the following embodiments may also be applied to a touch device such as a fingerprint identifier.

Fig. 11 is a flowchart illustrating a method for outputting a touch signal when an electronic device having a touch device is operating according to an embodiment of the invention, and with reference to fig. 3 and fig. 11, in step 401, the power device 111 detects whether the electronic device is being charged, if not, step 402 is executed, and if yes, step 403 is executed; in step 402, the processor 101 controls the touch signal output by the touch device to be a first touch signal, where the touch device may be the touch display screen 104 or the fingerprint acquisition device 112; in step 403, the processor 101 controls the touch signal output by the touch device to be a second touch signal, wherein the amplitude of the second touch signal is greater than that of the first touch signal.

In this embodiment, the touch signal is a touch scan signal output by the touch device during operation, that is, in conjunction with fig. 5 and fig. 8, the processor 101 controls a set of driving signals (Tx1, Tx2 …) output by each driving electrode 301 of the touch device 300.

In step 401, the electronic device may detect whether the charging current is equal to zero, or may be understood as that the electronic device sets a current threshold value with a value of zero, and determines that the charging current is not being charged when the charging current is equal to zero, that is, when the charging current is not greater than the first current threshold value.

It can be understood by those skilled in the art that, in the embodiment of the present invention, the touch device may output the touch signal according to a specific operating state, for example, but not limited to, when the mobile phone is in the screen lock state, the touch signal may not be output, so as to save power consumption and prolong the battery life, but when the electronic device outputs the touch signal in the normal operation, the electronic device outputs the touch signal with different signal intensities according to the determination process in the method of the embodiment of the present invention.

In step 402 and step 403, in the embodiment of the present invention, the electronic device may control an amplitude of the touch signal output by the touch device by adjusting a touch driving voltage or a touch driving current of the touch device, or by adjusting both of them, so as to output the first touch signal or the second touch signal.

The driving modes of different touch devices are different, and the mode of the processor 101 driving the touch signal may be voltage driving or current driving, where the voltage driving mode is that the external characteristic changes greatly and the current change is small after a device receives the input of the change of the voltage, and the current driving mode is that the external characteristic changes greatly and the voltage change is small after a device receives the input of the change of the current, for example, a light emitting diode is a current driving device, the input voltage of which is basically a determined value, the current is increased to change the brightness, and the current is decreased to decrease the brightness, and is a current driving device; the gas neon lamp is a voltage driving device, and when the voltage is low, the neon lamp does not light even if the voltage is low, the voltage is increased, and the current is still very small after the lamp lights. Therefore, the touch driving voltage or the touch driving current, or both, is specifically adjusted according to the driving type of the touch device.

In some embodiments, in step 403, the second touch signal may be dynamically adjusted to further improve the charging noise immunity.

In a possible implementation manner, the electronic device may detect a current charging current through the power supply device 111 and send the current charging current to the processor 101, and the processor 101 adjusts the second touch signal according to the current charging current, wherein the signal strength of the second touch signal may increase linearly or nonlinearly as the charging current increases or the amplitude of the charging noise increases.

In another possible implementation manner, the electronic device may detect a current charging noise through the power device 111 or through the touch device and send the current charging noise to the processor 101, and the processor 101 adjusts the second touch signal according to the current charging noise, where the signal strength of the second touch signal may increase linearly or non-linearly with an increase in the amplitude of the charging noise or an increase in the amplitude of the charging noise. In some embodiments, the electronic device may detect an amplitude of the charging noise at a frequency corresponding to the frequency of the second touch signal, and when the amplitude of the charging noise at the frequency increases, the signal strength of the second touch signal is appropriately increased to ensure that the second touch signal is not submerged by the charging noise at the frequency.

In another possible implementation manner, based on the foregoing embodiment, the electronic device may adjust the touch signal intermittently according to the magnitude of the charging current or the charging noise. That is, when the charging current exceeds a preset threshold (i.e., the second current threshold), or the amplitude of the charging noise exceeds a preset threshold, the processor 101 controls the touch signal output by the touch device to be a third touch signal, where the third touch signal is greater than the second touch signal; when the charging current is reduced to be less than or equal to a second current threshold, or the amplitude of the charging noise is reduced to be less than or equal to the preset threshold, the processor 101 may control the touch device to output the second touch signal; when the charging current is smaller than a first current threshold larger than zero or the electronic device stops charging according to a preset condition, the processor 101 may control the touch device to output the first touch signal. Of course, it should be understood by those skilled in the art that the setting of the fourth current threshold, the fifth current threshold, and so on according to the charging current threshold interval or according to the charging noise threshold interval is also included in the embodiments of the present invention.

In some embodiments, the first touch signal and the second touch signal may have the same frequency, and the second touch signal has a larger amplitude than the first touch signal.

In other embodiments, the first touch signal and the second touch signal may have different frequencies, and specifically, the electronic device may obtain an intensity of charging noise at a frequency corresponding to the second touch signal, and if the intensity of the charging noise is greater than a certain threshold, control the touch device to adjust the frequency of the output second touch signal, so that the intensity of the charging noise signal corresponding to the adjusted frequency of the second touch signal is smaller than the signal intensity threshold, so as to further reduce the influence of the charging noise on the touch signal.

Fig. 12 shows a time domain signal diagram and a frequency domain signal diagram of a touch signal in an uncharged or charged state of an electronic device according to an embodiment of the present invention, as shown in fig. 12, an amplitude of a TP signal output by a touch device is higher than an amplitude of the uncharged state of the electronic device during a charging process of the electronic device. Fig. 13 shows a time domain signal diagram and a frequency domain signal diagram of a touch signal and a charging signal in an uncharged state and a charged state according to an embodiment of the present invention. During charging, irregular charging noise is superposed on power frequency (frequency of an industrial alternating current power supply), and due to the fact that amplitude of a touch signal is improved during charging, compared with the prior art shown in fig. 1 and 2, a TP signal is stronger than the charging noise, the TP signal is not submerged by the charging noise, meanwhile, from the time domain, the TP signal is formed by a plurality of pulses in one group, multiple pulses are used for identifying touch, one-point interference can be filtered when a single pulse is superposed, and therefore the anti-interference capability of the TP signal in the charging state is improved.

Further, in some embodiments, the method further includes a step 404, in which it is detected whether the electronic device finishes charging, if so, the step 402 is executed, and if not, the step 403 is continuously executed.

Fig. 14 is a schematic flowchart illustrating a signal control method according to other embodiments of the present invention, and based on the embodiment illustrated in fig. 11, in this embodiment, in step 411, it is detected whether the electronic device is being charged and the charging current is greater than the first current threshold, if not, step 412 is executed, and if yes, step 413 is executed; the step 412 is the same as or substantially the same as the step 402, and the step 413 is the same as or substantially the same as the step 403, and for the sake of brevity, description is omitted. Further, in some embodiments, the method further includes a step 414, where the step 414 is the same as or substantially the same as the step 404, and for the sake of brevity, the description is omitted.

In some embodiments, the charging process of the electronic device may be divided into a trickle charging process, a constant-current charging process and a constant-voltage charging process, in the trickle charging process and the constant-voltage charging process, the charging current is relatively small, and the charging noise has less interference on the touch signal, so that the electronic device may set the first current threshold at a current value within a current range of the trickle charging process and the constant-voltage charging process, so that the touch signal output by the touch device is the first touch signal during the trickle charging process and the constant-voltage charging process, the power consumption is reduced, and the charging time is shortened.

According to an aspect of the present invention, an electronic device is provided, which includes a charging detection device, a control device, and a touch device; wherein the charging detection device can detect whether the electronic equipment is charged and the charging current during charging; the control device can control the touch device to output a touch signal. The process of the electronic device outputting the touch signal may include: when the charging detection device detects that the electronic equipment is not charged or the charging current is less than or equal to a first current threshold value during charging, the control device controls the touch signal output by the touch device to be a first touch signal; when the charging device detects that the electronic equipment is charged and the charging current is greater than the first current threshold, the control device controls the touch signal output by the touch device to be a second touch signal, wherein the signal intensity of the second touch signal is greater than the signal intensity of the first touch signal, that is, in the charging process, the control device controls the touch device to increase the output touch signal.

In some embodiments, the charging detection device may be a charging management chip, i.e., a charging control and charging detection chip, and the control device may be a control chip, such as the processor 101 shown in fig. 3; in some embodiments, the control device may include two independently arranged main control chips and a touch control chip; in some embodiments, the touch device may touch a display screen, i.e., a touch screen.

Fig. 15 is a schematic diagram illustrating an apparatus structure of an electronic device according to some embodiments of the present invention, where the electronic device 500 includes a charging control and charging detection chip 501, a main control chip 502, a touch control chip 503, a touch screen 504 and a battery 505, and fig. 16 is a schematic diagram illustrating a flowchart of a method for outputting a touch signal of an electronic device according to an embodiment of the present invention, and in conjunction with fig. 15 and fig. 16, in step 601, the charging control and charging detection chip 501 detects whether the battery 104 is in a charging state and communicates with the main control chip 502, and when it is detected that the battery is in the charging state, the charging control and charging detection chip 501 sends a charging confirmation signal to the main control chip 502, and then, in steps 602 and 603, the main control chip 502 controls the touch control chip 503 to drive the touch screen 504 to increase a signal strength of the output touch signal, specifically, in some embodiments, the normal operation mode and the charging operation mode are written in the touch control chip 503 in advance, when the touch control chip 503 is in the normal operation mode, the signal strength of the touch signal output by the touch control chip 503 driving the touch screen 504 is low, in step 602, after the main control chip 502 receives the charging confirmation signal, an operation mode switching instruction is sent to the touch control chip 503, in step 603, when the touch control chip 503 switches to the charging operation mode according to the instruction, the touch control chip 503 drives the touch signal output by the touch screen 504 to operate at the highest allowable signal strength, specifically, as shown in step 6031, the touch control chip 503 outputs a normal driving voltage and/or driving current, so that the touch screen 504 outputs a normal touch signal (i.e. a low touch signal), the touch control chip 503 outputs a higher driving voltage and/or driving current, so that the touch screen 504 outputs a higher touch signal.

When the charger is removed or the charging current is smaller than a current threshold, the charging control and charging detection chip 501 sends a charging end signal to the main control chip 502, after receiving the charging end signal, the main control chip 502 sends a working mode switching instruction to the touch control chip 503 again, the touch control chip 503 switches from the charging working mode to the normal working mode, and the touch control chip 503 drives the touch control signal with lower signal intensity output by the touch screen 504. In other embodiments, the touch control chip 503 has the capability of dynamically changing the driving voltage/driving current, and can dynamically adjust the driving voltage/driving current according to the received related instructions without presetting different operation modes.

With reference to the above description, as shown in fig. 17, in the embodiment of the present invention, when the electronic device 100 is in the charging state, the electronic device 100 may display a charging prompt message 701 on a display device, for example, the touch display screen 104, and when the touch device increases the touch signal output during operation according to the charging state, the electronic device may display a prompt message 702 on the touch display screen 104 to prompt the user that the output touch signal is currently increased, so as to improve the use experience of the interactive information.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

In summary, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (21)

1. A method for outputting a touch signal, wherein,

   when the electronic equipment is not charged or the charging current is less than or equal to a first current threshold value during charging, a touch signal output by a touch device of the electronic equipment is a first touch signal;

   when the electronic device is charged and the charging current is greater than the first current threshold, the touch signal output by the touch device is a second touch signal, wherein the signal intensity of the second touch signal is greater than the signal intensity of the first driving signal.
2. The method of claim 1, wherein the electronic device adjusts the touch signal output by the touch device by adjusting a touch driving voltage and/or a touch driving current of the touch device.
3. The method according to claim 1 or 2, wherein the method further comprises:

   when the electronic device is charged and the charging current of the electronic device is greater than the second current threshold, controlling the touch signal output by the touch device to be a third touch signal, wherein the signal intensity of the third touch signal is greater than the signal intensity of the second touch signal, and the second current threshold is greater than the first current threshold.
4. The method of claim 1 or 2, wherein the electronic device, while charging and a charging current is greater than the first current threshold, the method further comprises:

   and detecting a charging current value, and adjusting the signal intensity of the second touch signal according to the charging current value, wherein the signal intensity of the second touch signal is linearly or nonlinearly increased along with the increase of the charging current.
5. The method of any of claims 1-4, wherein the method further comprises:

   and when the touch signal output by the touch device is the second touch signal, displaying a prompt message on a display screen of the electronic equipment.
6. The method of any of claims 1-5, wherein the method further comprises:

   when the electronic equipment is charged and the charging current is larger than the first current threshold, detecting the signal intensity of the charging noise corresponding to the frequency of the second touch signal;

   when the signal intensity of the charging noise corresponding to the frequency is greater than the signal intensity threshold, adjusting the frequency of the second touch signal, so that the signal intensity of the charging noise corresponding to the adjusted frequency of the second touch signal is less than the signal intensity threshold.
7. An electronic device comprises a charging detection device, a control device and a touch device;

   the charging detection device is used for detecting whether the electronic equipment is charged and the charging current during charging;

   the control device is used for controlling the touch device to output a touch signal; wherein the content of the first and second substances,

   when the charging detection device detects that the electronic equipment is not charged or the charging current is less than or equal to a first current threshold value during charging, the control device controls the touch signal output by the touch device to be a first touch signal;

   when the charging device detects that the electronic equipment is charged and the charging current is larger than the first current threshold, the control device controls the touch device to output a second touch signal, wherein the signal intensity of the second touch signal is larger than the signal intensity of the first touch signal.
8. The electronic device of claim 7, wherein the control device is configured to adjust a touch driving voltage and/or a touch driving current of the touch device to adjust the touch signal output by the touch device.
9. The electronic device of claim 7 or 8, wherein the control means is further configured to:

   when the charging detection device detects that the electronic equipment is charged and the charging current is greater than the second current threshold, the touch signal output by the touch device is controlled to be a third touch signal, the touch signal output by the touch device is a third touch signal, wherein the signal intensity of the third touch signal is greater than the signal intensity of the second touch signal, and the second current threshold is greater than the first current threshold.
10. The electronic device of claim 7 or 8, wherein the control means is further configured to:

    and acquiring a value of the charging current detected by the charging detection device, and adjusting the signal intensity of the second touch signal according to the value of the charging current, wherein the signal intensity of the second touch signal is linearly or nonlinearly increased along with the increase of the charging current.
11. The electronic device of any of claims 7-10, wherein the electronic device further comprises:

    and the display device is used for displaying a prompt message when the touch control signal output by the touch control device is the second touch control signal.
12. The electronic device of any of claims 7-11, wherein the touch device comprises at least any of:

    touch panel, touch-control display screen, fingerprint identification ware.
13. The electronic device of any of claims 7-12, wherein the touch device is a capacitive recognition touch device.
14. The electronic device of any of claims 7-13, wherein the control apparatus further comprises:

    the noise monitoring unit is used for detecting the signal intensity of the charging noise corresponding to the frequency of the second touch signal when the electronic equipment is charged and the charging current is greater than the first current threshold;

    and the frequency modulation unit is used for controlling the touch device to adjust the frequency of the output second touch signal when the noise signal detection device detects that the signal intensity of the charging noise corresponding to the frequency of the second touch signal is greater than a signal intensity threshold value, so that the charging noise signal intensity corresponding to the adjusted frequency of the second touch signal is smaller than the signal intensity threshold value.
15. An electronic device, the electronic device comprising:

    a touch device;

    one or more processors;

    a memory; and

    one or more application programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the first one or more programs comprising instructions for:

    detecting whether the electronic equipment is charged and the charging current during charging;

    when the electronic equipment is detected not to be charged or the charging current is less than or equal to a first current threshold value during charging, controlling a touch signal output by the touch device to be a first touch signal;

    when the electronic equipment is detected to be charged and the charging current is larger than the first current threshold, controlling the touch device to output a second touch signal, wherein the signal intensity of the second touch signal is larger than the signal intensity of the first touch signal.
16. The electronic device of claim 15, wherein the one or more programs further comprise instructions for:

    and adjusting the touch signal output by the touch device by adjusting the touch driving voltage and/or the touch driving current of the touch device.
17. The electronic device of claim 15 or 16, wherein the one or more programs further comprise instructions for:

    when the electronic device is charged and the charging current of the electronic device is greater than the second current threshold, controlling the touch signal output by the touch device to be a third touch signal, wherein the signal intensity of the third touch signal is greater than the signal intensity of the second touch signal, and the second current threshold is greater than the first current threshold.
18. The electronic device of claim 15 or 16, wherein the one or more programs further comprise instructions for, when the electronic device is charging and a charging current is greater than the first current threshold:

    and detecting a charging current value, and adjusting the signal intensity of the second touch signal according to the charging current value, wherein the signal intensity of the second touch signal is linearly or nonlinearly increased along with the increase of the charging current.
19. The electronic device of any of claims 15-18, wherein the electronic device further comprises a display screen, the one or more programs further comprising instructions to:

    and when the touch signal output by the touch device is the second touch signal, displaying a prompt message on a display screen of the electronic equipment.
20. The electronic device of any of claims 15-19, wherein the one or more programs further comprise instructions to:

    when the electronic equipment is charged and the charging current is larger than the first current threshold, detecting the signal intensity of the charging noise corresponding to the frequency of the second touch signal;

    when the signal intensity of the charging noise corresponding to the frequency is greater than the signal intensity threshold, adjusting the frequency of the second touch signal, so that the signal intensity of the charging noise corresponding to the adjusted frequency of the second touch signal is less than the signal intensity threshold.
21. A computer-readable storage medium comprising instructions that, when run on an electronic device with a touch-sensitive apparatus, cause the electronic device to perform the method of any of claims 1-6.

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