WO2018166057A1 - 一种输出触控信号的方法和电子设备 - Google Patents

一种输出触控信号的方法和电子设备 Download PDF

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Publication number
WO2018166057A1
WO2018166057A1 PCT/CN2017/083659 CN2017083659W WO2018166057A1 WO 2018166057 A1 WO2018166057 A1 WO 2018166057A1 CN 2017083659 W CN2017083659 W CN 2017083659W WO 2018166057 A1 WO2018166057 A1 WO 2018166057A1
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WIPO (PCT)
Prior art keywords
touch
charging
signal
electronic device
current
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PCT/CN2017/083659
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English (en)
French (fr)
Inventor
李创伟
艾柯
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780088334.0A priority Critical patent/CN110431518B/zh
Publication of WO2018166057A1 publication Critical patent/WO2018166057A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to a method and an electronic device for outputting a touch signal.
  • the electronic device has various touch function devices and can provide human-computer interaction functions.
  • the touch device may include a touch screen capable of detecting a touch position (English: Touch Panel, TP for short), a fingerprint recognizer capable of recognizing fingerprint lines, and the like.
  • the touch screen can adopt capacitive or pressure recognition technology, and the fingerprint recognizer can adopt optical imaging, ultrasonic reflection, semiconductor capacitance change and other recognition technologies.
  • Projective Capacitive touch technology has been widely used in current electronic devices due to its mature technology and high recognition rate.
  • touch devices have been deeply affected by electromagnetic interference during charging, especially touch devices using projected capacitive touch technology, which have a greater impact.
  • the common mode noise of the charger enters the mobile phone through the charging port (usually the USB interface). Since the charging circuit of the mobile phone is close to the touch display screen/fingerprint reader, a considerable part of the charging noise is coupled to The touch screen/fingerprint reader, while the working state of the touch screen/fingerprint reader is not effectively changed for the noise.
  • the user may touch the device without using the touch device. Dial-up linkage, screen skipping, application auto-opening, fingerprint unlocking failure, etc., seriously affect the experience.
  • FIG. 1 is a schematic diagram showing time domain and frequency domain signals of a touch signal (TP signal) of a touch device in the prior art
  • FIG. 2 is a schematic diagram showing frequency domain signals for detecting a TP signal on the surface of the touch screen.
  • the signal strength of the TP signal remains unchanged in the uncharged and charged state, wherein, in the uncharged state, there is no charging noise interference, and the TP signal can normally recognize various operations of the user and give a correct response while charging.
  • the charging noise is coupled to the TP signal, which may be recognized as an automatic touch by the user operation, and an error contact occurs when the user actually operates.
  • the charging noise is superimposed on the TP signal, which may cause a touch response. Error or no response, screen flops and freeze screens.
  • the TP signal will be "submerged" in the charging noise, resulting in the touch function not working properly.
  • the embodiments of the present invention provide a plurality of methods and electronic devices for outputting a touch signal, so as to effectively reduce interference of charging noise on a touch signal output by the touch device.
  • a method for outputting a touch signal according to a first aspect of the present invention includes: when the electronic device is not charging or charging, a charging current is less than or equal to a first current threshold, the electronic device The touch signal output by the touch device 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.
  • the signal strength of the second touch signal is greater than the signal strength of the first driving signal.
  • the first current threshold may be zero or a value greater than zero.
  • the first current threshold is set to zero, and the method includes: when the electronic device is not charging, the touch signal output by the touch device of the electronic device is the first a touch signal; when the electronic device is charging, the touch signal output by the touch device is the second touch signal.
  • the first current threshold is set to a value greater than zero
  • the method comprising: when the electronic device is not charging or charging, the charging current is less than or equal to the first current threshold, The touch signal output by the touch device of the electronic device 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 is described.
  • the electronic device adjusts a touch driving voltage and/or a touch driving current of the touch device to adjust a touch signal output when the touch device operates.
  • the method further includes: when the electronic device is charging and its charging current is greater than the second current threshold, the touch signal output by the touch device is a third touch signal, The signal strength of the third touch signal is greater than the signal strength of the second touch signal, and the second current threshold is greater than the first current threshold.
  • the method when the electronic device is charging and the charging current is greater than the first current threshold, the method further includes: detecting a charging current value, and adjusting the second touch signal according to the charging current value. a signal strength, wherein a signal strength of the second touch signal increases linearly or non-linearly as the charging current increases.
  • the method when the electronic device is charging and the charging current is greater than the first current threshold, the method further includes: detecting a magnitude of charging noise at a frequency corresponding to a frequency of the second touch signal. Adjusting, according to the amplitude of the charging noise at the frequency, the signal strength of the second touch signal, wherein the signal strength of the second touch signal increases with the amplitude of the charging noise at the frequency Linearity, nonlinearity increases, or increases in intervals.
  • the method further includes: when the touch signal output by the touch device is the second touch signal, A prompt message is displayed on the display of the electronic device.
  • 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 device 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 device, where the second prompt message is different from the first Prompt message.
  • the method further includes: detecting the second when the electronic device is charging and the charging current is greater than the first current threshold The signal strength of the charging noise corresponding to the frequency of the touch signal; when the signal strength of the charging noise corresponding to the frequency is greater than the signal strength threshold, adjusting the frequency of the second touch signal, so that the adjusted second touch The charging noise signal strength corresponding to the frequency of the signal is less than the signal strength threshold. Adjusting the frequency of the second touch signal further reduces interference of the charging noise on the touch signal.
  • an electronic device includes a charging detecting device, a control device, and a touch device; the charging detecting device is configured to detect whether a charging current of the electronic device is charging and charging; The control device is configured to control the touch device to output a touch signal; wherein the control device detects that the charging current is less than or equal to a first current threshold when the electronic device is not charging or charging Controlling, by the charging device, that the touch signal output by the touch device is a first touch signal; and the charging device detects that the electronic device is charging and has a large charging current The control device controls the touch device to output a second touch signal, wherein the signal strength of the second touch signal is greater than the signal strength of the first touch signal.
  • the first current threshold may be zero or a value greater than zero.
  • the first current threshold is set to zero, and when the charging detection device detects that the electronic device is not charging, 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 device is charging, the control device controls the touch signal output by the touch device to be the second touch signal.
  • 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 charging or charging, the charging current is less than or equal to the first current. a threshold value, the control device controls the touch signal output by the touch device to be the first touch signal; and when the charging current of the electronic device is greater than the first current threshold, the control device controls the touch The touch signal output by the control device is the second touch signal.
  • the charging detection device may be a charging management chip
  • the control device may include a main control chip and a touch control chip
  • the touch device may be a touch panel, a fingerprint identifier, a touch display screen ( That is, the touch screen).
  • the touch device can be a capacitive identification touch device.
  • 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.
  • the control device controls the touch signal output by the touch device to be a third touch.
  • the touch signal output by the touch device is a third touch signal, wherein a signal strength of the third touch signal is greater than a signal strength of the second touch signal, and the second current threshold Greater than the first current threshold.
  • control device acquires a value of the charging current detected by the charging detecting device, and adjusts a signal strength of the second touch signal according to the value of the charging current, wherein the second touch The signal strength of the signal increases linearly or non-linearly as the charging current increases.
  • control device acquires a value of the charging current detected by the charging detecting device, and adjusts a signal strength of the second touch signal according to the value of the charging current, wherein the second touch
  • the signal strength of the signal increases linearly or non-linearly as the magnitude of the charging noise increases.
  • the electronic device further includes: a display device, configured to output a touch signal to the first touch in the touch device The first prompt message is displayed when the touch device outputs the touch signal to the second touch signal, and the second prompt message is displayed, wherein the second prompt message is different from the first prompt Message.
  • the electronic device further includes: a noise signal detecting device, wherein the noise signal detecting device is configured to: when the electronic device is Charging and charging current is greater than the first current threshold, detecting a signal strength of charging noise corresponding to a frequency of the second touch signal; the control device is further configured to: when the noise signal detecting device detects the first The signal strength of the charging noise corresponding to the frequency of the touch signal is greater than the signal strength threshold, and the touch control device controls the frequency of the second touch signal outputted by the touch device to adjust the second touch signal.
  • the charging noise signal strength corresponding to the frequency is less than the signal strength threshold. Adjusting the frequency of the second touch signal further reduces interference of the charging noise on the touch signal.
  • a graphical user interface on an electronic device having a display device wherein The graphical user interface includes: a display interface displayed on the display device, wherein the touch signal output by the touch device in the method according to the embodiments of the first aspect is When the two touch signals are displayed, the notification information is displayed on the display interface.
  • An electronic device comprising: a touch device; one or more processors; a memory; and one or more applications, wherein the one or more programs are stored in The memory is and is configured to be executed by the one or more processors, the first one or more programs comprising instructions for detecting whether the electronic device is charging current when charging and charging Controlling the touch signal output by the touch device as a first touch signal when detecting that the charging current is not equal to or equal to the first current threshold when the electronic device is not charging or charging; detecting that the electronic device is And charging, and charging current is greater than the first current threshold, and controlling the touch device to output a second touch signal, wherein a signal strength of the second touch signal is greater than a signal strength of the first touch signal.
  • the one or more programs further include instructions for adjusting the touch device output by adjusting a touch driving voltage and/or a touch driving current of the touch device. Touch signal.
  • the one or more programs further include instructions for controlling a touch output by the touch device when the electronic device is charging and its charging current is greater than the second current threshold
  • the control signal is a third touch signal, wherein the signal strength of the third touch signal is greater than the signal strength of the second touch signal, and the second current threshold is greater than the first current threshold.
  • the one or more programs when the electronic device is charging and the charging current is greater than the first current threshold, the one or more programs further include an instruction to: detect a charging current value, according to the charging current The value adjusts a signal strength of the second touch signal, wherein a signal strength of the second touch signal increases linearly or non-linearly as the charging current increases.
  • the electronic device further includes a display screen, the one or more programs further including instructions for: when the The touch signal outputted by the control device is the first touch signal, and the first prompt message is displayed on the display screen of the electronic device; when the touch signal output by the touch device is the second touch The control signal displays a second prompt message on the display screen of the electronic device, the second prompt message being different from the first prompt message.
  • the one or more programs further include instructions for: when the electronic device is charging and the charging current is greater than the a first current threshold, detecting a signal strength of the charging noise corresponding to the frequency of the second touch signal; and adjusting a frequency of the second touch signal when the signal strength of the charging noise corresponding to the frequency is greater than a signal intensity threshold The intensity of the charging noise signal corresponding to the adjusted frequency of the second touch signal is less than the signal strength threshold.
  • a computer readable storage medium comprising instructions, when operating on an electronic device having a touch device, causing the electronic device to perform any of the foregoing first embodiments Methods.
  • a first computer program product which when executed on an electronic device having a touch device, causes the electronic device to perform the method of any of the preceding first embodiments.
  • FIG. 1 is a schematic diagram showing time domain and frequency domain signals of a touch signal of a touch device in the prior art
  • FIG. 2 is a schematic diagram showing a frequency domain signal for detecting a TP signal on a surface of a touch screen
  • FIG. 3 is a schematic diagram showing the hardware structure of a mobile phone according to some embodiments of the present invention.
  • FIG. 4 is a schematic diagram showing the appearance of an electronic device according to some embodiments of the present invention.
  • FIG. 5 is a schematic structural diagram of a capacitive touch screen according to some embodiments of the present invention.
  • 6a and 6b are schematic diagrams showing the schematic structure of a touch display screen in some embodiments of the present invention.
  • FIG. 7a and 7b are schematic diagrams showing changes in capacitance between the drive electrode and the sense electrode when there is no touch and touch in some embodiments of the invention.
  • FIG. 8 is a timing diagram showing signal timing of a touch signal detecting process in some embodiments of the present invention.
  • FIG. 9 is a schematic block diagram showing a fingerprint identifier in some embodiments of the present invention.
  • FIG. 10 is a schematic diagram showing a charging process of an electronic device in some embodiments of the present invention.
  • FIG. 11 is a schematic flowchart diagram of a method for outputting a touch signal by an electronic device according to some embodiments of the present invention.
  • FIG. 12 is a schematic diagram showing 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 showing time and frequency domain signals of a touch signal and a charging signal in an uncharged state and a charged state according to some embodiments of the present invention
  • FIG. 14 is a schematic flowchart diagram of a signal control method according to another embodiment of the present invention.
  • 15 is a schematic structural diagram of an apparatus of an electronic device according to some embodiments of the present invention.
  • 16 is a schematic flow chart of 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 showing the interface of the touch device of the electronic device according to some embodiments of the present invention when the output touch signal is the second touch signal.
  • the electronic device mentioned in the embodiment of the present invention is a touch device (that is, a capacitive touch device) using a projected capacitive technology
  • the electronic device may be a mobile phone, a mobile phone, a tablet personal computer, or a tablet personal computer.
  • Laptop Computer Digital Camera, Digital Camera, Projection Equipment, Personal Digital Assistant (Personal) a digital assistant (abbreviated as PDA), an e-book reader (English: E-book Reader) or a wearable device (Wearable Device), a virtual reality smart device, etc.
  • the touch device may include a touch panel capable of recognizing a touch position, A touch display screen, and a fingerprint recognizer capable of recognizing the fingerprint pattern of the user's finger.
  • FIG. 3 is a schematic diagram showing the hardware structure of the mobile phone in some embodiments of the present invention.
  • the electronic device in the embodiment of the present invention may be the 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 mobile phone 100 is only one example of an electronic device, and the mobile phone 100 may have more or fewer components than those shown in the figures, two or more components may be combined, or Has a different component configuration.
  • the various components shown in the figures can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.
  • the mobile phone 100 may specifically include: a processor 101, a radio frequency (RF) circuit 102, a memory 103, a touch screen 104, a Bluetooth device 105, one or more sensors 106, a Wi-Fi device 107, a positioning device 108, The audio circuit 109, the peripheral interface 110, the power supply device 111, and the fingerprint collection device (ie, the fingerprint recognizer) 112 and the like. These components can communicate over one or more communication buses or signal lines (not shown in Figure 3). It will be understood by those skilled in the art that the hardware structure shown in FIG. 3 does not constitute a limitation on the mobile phone 100, and the mobile phone 100 may include more or less components than those illustrated, or combine some components, or different component arrangements. .
  • RF radio frequency
  • the processor 101 is a control center of the mobile phone 100, and connects various parts of the mobile phone 100 by using various interfaces and lines, by running or executing an application stored in the memory 103 (hereinafter referred to as App), and calling the memory stored in the memory 103.
  • App an application stored in the memory 103
  • the data and instructions perform various functions and processing data of the handset 100.
  • processor 101 may include one or more processing units; processor 101 may also integrate an application processor and a modem processor; wherein the application processor primarily processes operating systems, user interfaces, applications, etc.
  • the modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 101.
  • the processor 101 can be an integrated chip.
  • the processor 101 may further include a fingerprint verification chip for verifying the collected fingerprint.
  • the radio frequency circuit 102 can be used to receive and transmit wireless signals during transmission or reception of information or calls. Specifically, the radio frequency circuit 102 can process the downlink data of the base station and then process it to the processor 101. In addition, the data related to the uplink is sent to the base station.
  • radio frequency circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency circuit 102 can also communicate with other devices through wireless communication.
  • the wireless communication can use any communication standard or protocol, including but not limited to global mobile communication systems, general packet radio services, code division multiple access, wideband code division multiple access, long term evolution, email, short message service, and the like.
  • the memory 103 is used to store applications and data, and the processor 101 executes various functions and data processing of the mobile phone 100 by running applications and data stored in the memory 103.
  • the memory 103 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.); the storage data area can be stored according to the use of the mobile phone. Data created at 100 o'clock (such as audio data, phone book, etc.).
  • the memory 103 may include a high speed random access memory, and may also include a nonvolatile memory such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device.
  • the memory 103 can store various operating systems, such as those developed by Apple. Operating system, developed by Google Inc. Operating system, etc.
  • the touch screen 104 can include a touch panel 104-1 and a display 104-2.
  • the touch panel 104-1 can collect touch events on or near the user of the mobile phone 100 (such as the user using a finger, a stylus, or the like on the touchpad
  • the operation on or near the touch panel 104-1 is transmitted to other devices such as the processor 101.
  • the touch event of the user in the vicinity of the touch panel 104-1 may be referred to as a hovering touch; the hovering touch may mean that the user does not need to directly touch the touchpad in order to select, move or drag a target (eg, an icon, etc.) And only the user is located near the electronic device in order to perform the desired function.
  • the touch panel 104-1 capable of floating touch can be realized by a capacitive type, an infrared light feeling, an ultrasonic wave, or the like.
  • the touch panel 104-1 may include two parts of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits a signal to the touch controller; the touch controller receives the touch information from the touch detection device, and converts the touch information into contact coordinates, and then Sended to the processor 101, the touch controller can also receive instructions from the processor 101 and execute them.
  • the touch panel 104-1 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • a display (also referred to as display) 104-2 can be used to display information entered by the user or information provided to the user as well as various menus of the mobile phone 100.
  • the display 104-2 can be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the touchpad 104-1 can be overlaid on the display 104-2, and when the touchpad 104-1 detects a touch event on or near it, it is transmitted to the processor 101 to determine the type of touch event, and then the processor 101 may provide a corresponding visual output on display 104-2 depending on the type of touch event.
  • the touchpad 104-1 and the display 104-2 are implemented as two separate components to implement the input and output functions of the handset 100, in some embodiments, the touchpad 104- 1 is integrated with the display screen 104-2 to implement the input and output functions of the mobile phone 100. It can be understood that the touch screen 104 is formed by stacking a plurality of layers of materials. In the embodiment of the present invention, only the touch panel (layer) and the display screen (layer) are shown, and other layers are not described in the embodiment of the present invention. .
  • the touch panel 104-1 may be overlaid on the display 104-2, and the size of the touch panel 104-1 is larger than the size of the display 104-2, so that the display 104- 2 is completely covered under the touch panel 104-1, or the touch panel 104-1 may be disposed on the front side of the mobile phone 100 in the form of a full-board, that is, the user's touch on the front of the mobile phone 100 can be perceived by the mobile phone. You can achieve a full touch experience on the front of your phone.
  • the touch panel 104-1 is disposed on the front side of the mobile phone 100 in the form of a full-board
  • the display screen 104-2 may also be disposed on the front side of the mobile phone 100 in the form of a full-board, so that the front side of the mobile phone is A frameless (Bezel) structure can be realized.
  • the mobile phone 100 may further have a fingerprint recognition function.
  • a fingerprint reader 112 also referred to as a fingerprint capture device
  • a fingerprint reader can be disposed on the back of the handset 100 (eg, below the rear camera) or a fingerprint reader can be disposed on the front of the handset 100 (eg, below the touch screen 104).
  • a fingerprint identifier 112 is disposed beneath the touch screen 104 of the handset 100, and the fingerprint identifier 112 can capture a fingerprint once in a touch event.
  • a fingerprint identifier 112 is disposed below the area 201, The fingerprint reader 112 can capture the fingerprint once in one touch event.
  • the fingerprint recognition function can also be implemented 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 implement the fingerprint recognition function of the mobile phone 100.
  • the fingerprint identifier 112 can be disposed in the touch screen 104, can be part of the touch screen 104, or can be otherwise configured in the touch screen 104.
  • a plurality of fingerprint recognizers are configured at four different locations in the touch screen 104.
  • the touch screen 104 can simultaneously acquire multiple touch events, and only capture one fingerprint of one of the touch events or simultaneously capture all fingerprints of all touch events.
  • the location of the plurality of fingerprint identifiers may be in the lower half of the touch screen 104, and in particular, the fingerprint identifier 112 may be configured in the area of the touch screen 104 that can be reached by the thumb when the user holds the mobile phone 100. This makes it easier for the user to operate the phone with one hand.
  • the fingerprint identifier 112 can also be implemented as a full-board fingerprint reader, and thus the touch screen 104 can be viewed as a panel that can be fingerprinted at any location.
  • the fingerprint identifier 112 can send the collected fingerprint to the processor 101 for the processor 101 to process the fingerprint (eg, fingerprint verification, etc.).
  • the main component of the fingerprint recognizer 112 in the embodiment of the present invention is a fingerprint sensor.
  • a fingerprint may be collected at a fixed position in the touch screen 104; fingerprints may also be collected at any position on the touch screen 104; multiple touch events may also be acquired simultaneously on the touch screen 104, and the fingerprint identifier 112 may only Capture one fingerprint of one of the touch events or capture all fingerprints of all touch events simultaneously.
  • the mobile phone 100 can also include a Bluetooth device 105 for enabling data exchange between the handset 100 and other short-range electronic devices (eg, mobile phones, smart watches, etc.).
  • the Bluetooth device in the embodiment of the present invention may be an integrated circuit or a Bluetooth chip or the like.
  • the handset 100 can also include at least one type of sensor 106, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display of the touch screen 104 according to the brightness of the ambient light, and the proximity sensor may turn off the power of the display when the mobile phone 100 moves to the ear.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.
  • the mobile phone 100 can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, here Let me repeat.
  • the Wi-Fi device 107 is configured to provide the mobile phone 100 with network access complying with the Wi-Fi related standard protocol, and the mobile phone 100 can access the Wi-Fi access point through the Wi-Fi device 107, thereby helping the user to send and receive emails, Browsing web pages and accessing streaming media, etc., it provides users with wireless broadband Internet access.
  • the Wi-Fi device 107 can also function as a Wi-Fi wireless access point, and can provide Wi-Fi network access to other electronic devices.
  • the positioning device 108 is configured to provide a geographic location for the mobile phone 100. It can be understood that the positioning device 108 can be specifically a receiver of a positioning system such as a Global Positioning System (GPS) or a Beidou satellite navigation system, or a Russian GLONASS. After receiving the geographical location transmitted by the positioning system, the positioning device 108 sends the information to the processor 101 for processing, or sends it to the memory 103 for storage. In some other embodiments, the positioning device 108 may be a receiver for assisting an Global Positioning System (AGPS).
  • the AGPS is an operation mode for performing GPS positioning with a certain assist, which can utilize the signal of the base station.
  • the GPS satellite signal can make the mobile phone 100 locate faster; in the AGPS system, the positioning device 108 can obtain positioning assistance by communicating with an auxiliary positioning server (such as a mobile phone positioning server).
  • the AGPS system assists the positioning device 108 in performing the ranging and positioning services by acting as a secondary server, in which case the secondary positioning server is provided over the wireless communication network in communication with the positioning device 108 (i.e., GPS receiver) of the electronic device, such as the handset 100.
  • Positioning assistance can also be a Wi-Fi access point based positioning technology.
  • each Wi-Fi access point has a globally unique MAC address
  • the electronic device can scan and collect the broadcast signals of the surrounding Wi-Fi access points when Wi-Fi is turned on, so that Wi can be obtained.
  • the MAC address broadcasted by the Fi access point the electronic device transmits the data (such as the MAC address) capable of indicating the Wi-Fi access point to the location server through the wireless communication network, and each Wi-Fi connection is retrieved by the location server.
  • the geographic location of the inbound point combined with the strength of the Wi-Fi broadcast signal, calculates the geographic location of the electronic device and sends it to the positioning device 108 of the electronic device.
  • the audio circuit 109, the speaker 113, and the microphone 114 can provide an audio interface between the user and the handset 100. Audio The circuit 109 can transmit the converted electrical data of the received audio data to the speaker 113, and convert it into a sound signal output by the speaker 113. On the other hand, the microphone 114 converts the collected sound signal into an electrical signal, which is received by the audio circuit 109. It is then converted to audio data, which is then output to RF circuitry 102 for transmission to, for example, another handset, or audio data is output to memory 103 for further processing.
  • the peripheral interface 110 is used to provide various interfaces for external input/output devices (such as a keyboard, a mouse, an external display, an external memory, a subscriber identity module card, etc.).
  • external input/output devices such as a keyboard, a mouse, an external display, an external memory, a subscriber identity module card, etc.
  • a universal serial bus (USB) interface is connected to the mouse, and a metal contact on the card slot of the subscriber identification module is connected to a subscriber identity module card (SIM) card provided by the telecommunications carrier.
  • SIM subscriber identity module card
  • Peripheral interface 110 can be used to couple the external input/output peripherals described above to processor 101 and memory 103.
  • the mobile phone 100 may further include a power supply device 111 for supplying power to various components (for example, including at least one of the following: a battery, a power management chip, a charge management chip, etc.), and the battery may be logically connected to the processor 101 through the power management chip, thereby passing the power supply.
  • the device 111 implements functions such as managing charging, discharging, and power consumption management.
  • the mobile phone 100 may further include a camera (front camera and/or rear camera), a flash, a micro projection device, a near field communication (NFC) device, and the like, and details are not described herein.
  • a camera front camera and/or rear camera
  • a flash a flash
  • micro projection device a micro projection device
  • NFC near field communication
  • the electronic device may be a mobile phone 100.
  • the electronic device has a touch display screen 104 and a fingerprint identifier 112, and the graphic user is displayed on the touch display screen 104.
  • the device visible in the appearance of the electronic device further includes any one or a combination of the following: various interfaces such as a speaker 113, a microphone 114, a charging interface/headphone, a volume key/lock screen key, and the like, various physical buttons, a camera, a flash, and the like. structure.
  • the touch display screen 104 and the fingerprint identifier 112 may be located in two areas on the same side of the mobile phone 100.
  • the touch display screen 104 and the fingerprint identifier 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 identification is performed.
  • the device 112 is on the back.
  • the touch display screen 104 and the fingerprint identifier 112 may also be located in the same area, and details are not described herein.
  • touch display screen 101 displays the content
  • the position of the touch or the stylus on the surface of the touch area can be detected, instead of the mouse or the external contact control board, so that the user can conveniently access the touch display screen. Interact on the display content.
  • the touch display screen 104 can have multiple implementations. 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 surface of the screen, the capacitance changes, and the processor 101 can determine the position of the touch by detecting a change in the capacitance.
  • the capacitive touch display 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)
  • the mutual capacitance sensing structure includes a driving electrode and a sensing electrode.
  • FIG. 5 is a schematic structural diagram of a capacitive touch screen according to some embodiments of the present invention, wherein the capacitive touch display screen 300 has a touch sensing area, and has a sensing structure in the touch sensing area, and the sensing structure includes a plurality of driving electrodes. 301 and a plurality of sensing electrodes 302, the driving electrode 301 and the sensing electrode 301 may be light transmissive organic or light transmissive inorganic conductive materials, such as ITO (Indium Tin Oxide), ATO (Antimony Tin Oxide), TO (Tin Oxide), or other A conductive polymer such as a carbon nanotube (Carbon Nanotube) or the like.
  • ITO Indium Tin Oxide
  • ATO Antimony Tin Oxide
  • TO Tin Oxide
  • a conductive polymer such as a carbon nanotube (Carbon Nanotube) or the like.
  • the capacitive touch display screen may adopt a plurality of ITO layers, and the driving electrode 301 and the sensing electrode 301 form a matrix distribution, and the X-axis and the Y-axis cross-distribution perpendicular to each other are used as a capacitance matrix, when the finger touches When the screen is touched, the change of the capacitance of the touch position can be detected by scanning the X-axis and the Y-axis, thereby calculating the touch position of the finger.
  • 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 is not limited to PET (Polyethylene Terephthalate), PEN (Polyethylene Naphthalate), PC (Polycarbonate) or the like.
  • FIG. 6a and 6b are schematic diagrams showing a schematic structure of a touch display screen according to some embodiments of the present invention.
  • the driving electrode 301 and the sensing electrode 302 are disposed on opposite sides of a substrate 303a.
  • 303a electrically insulates the two from each other, and forms a transparent insulating medium 304 and a transparent cover 305 on the driving electrode 301.
  • the insulating medium 304 may be a transparent adhesive, and the transparent cover 305 may be plastic or glass.
  • the driving electrode 301 and the sensing electrode 302 are respectively disposed on different substrates 303b and 303c, 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 through the sensing electrode line before and after the touch operation or the proximity operation.
  • a finger touch or proximity to the touch device causes a change in capacitance, which causes a change in the amount of voltage or charge detected by the detection circuit, and the processor 101 can confirm the touch event by the detected voltage or charge change.
  • the mutual capacitance touch screen 300 supplies a driving signal to the driving electrode line and detects the sensing electrode line in synchronization with the driving signal, and senses a change in capacitance between the driving electrode 301 and the sensing electrode 302.
  • the driving signal can be generated in various forms, including a square wave pulse, a sine wave pulse, a triangular wave pulse, and the like.
  • the mutual-capacitive touch display screen 300 uses a driving electrode 301 for detecting capacitance and a sensing electrode 302.
  • the driving electrode 301 and the sensing electrode 302 are connected to the processor through a wiring.
  • the processor 101 outputs a driving control signal to the driving electrode 301.
  • a capacitance change occurs between the driving electrode 301 and the sensing electrode 302, and the processor 101 can determine the position of the touch according to the detected sensing signal (capacitance detection signal) on the sensing electrode 302. coordinate.
  • FIG. 7a and 7b are diagrams showing changes in capacitance between the drive electrode and the sense electrode when there is no touch and touch in some embodiments of the present invention, as shown in FIG. 7a, when there is no touch, one
  • the capacitance between the driving electrode and the sensing electrode is Cm1.
  • FIG. 7b when there is a touch, the capacitance change between the driving electrode and the sensing electrode is a series connection of Cm1 and Cmg.
  • the capacitor 101 can detect the change of the capacitor through the sensing electrode, and the specific calculation formula is not described again.
  • FIG. 8 is a timing diagram showing signal timing of a touch signal detecting process in some embodiments of the present invention, when the processor 101 sequentially inputs a driving signal Tx (Tx1, Tx2, ... TxN, N is a natural number) to each driving electrode 301, when All of the drive electrodes are scanned once for one detection period. Subsequently, the processor 101 sequentially inputs a drive signal Tx to each of the drive electrodes 301 from the beginning, and thus periodically cyclically detects. 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 detecting signal.
  • Tx driving signal
  • the capacitance between the driving electrode 301 and the sensing electrode 302 occurs in conjunction with FIG. 5b.
  • the change causes the voltage VINT to change, and the capacitance detection signal also changes.
  • the processor 101 can determine the position of the touch by changing the capacitance detection signal.
  • the above touch position sensor can be used to detect the position of a finger or a stylus.
  • FIG. 9 is a schematic structural diagram of the fingerprint identifier in some embodiments of the present invention.
  • the fingerprint identifier 112 detector is used to detect the texture of the fingerprint. Since the hand fingerprint path is uneven, the actual distance between the bump and the concave contact plate is different, and the capacitance/inductance value is also formed. Not the same, the fingerprint reader can thereby detect the graphic of the fingerprint, the fingerprint recognizer 112 outputs the touch signal, and according to this principle, the different capacitances collected will be collected. Detecting the value summary, sending the processor 101 to the processor, completing the fingerprint collection, and determining whether the fingerprint is the same as one of the pre-stored one or more fingerprint patterns according to the detected graphic. Verify and perform other interactions.
  • the charger 200 is a charging diagram of the electronic device.
  • the power device 111 in the electronic device can cooperate with the processor 101 to complete the charging process.
  • the charging port on the device is relatively close to the touch device such as the fingerprint identifier 112 and the touch display screen 104.
  • the embodiment of the invention provides the electronic device to control the output of the touch device.
  • the method of the touch signal in the uncharged stage, setting the touch signal of the touch device to a lower amplitude (ie, lower signal strength), thereby saving power consumption and prolonging battery life, while charging In the state or when the charging current is greater than a certain threshold, the signal strength of the touch signal of the touch device is increased, and the interference of the charging noise on the touch signal is reduced. Reduce the effect of charging the electronic device on the touch device, when the touch protect mobile phone charging apparatus can work properly.
  • a touch device such as a fingerprint reader.
  • FIG. 11 is a flow chart showing a method for outputting a touch signal during operation of the touch device according to an electronic device with a touch device according to an embodiment of the invention.
  • the power device is provided.
  • 111 detecting whether the electronic device is charging, if not, executing step 402, and then executing step 403; in step 402, the processor 101 controls the touch signal output by the touch device as the first touch signal, and the touch device
  • the first touch signal is provided.
  • the touch signal is a touch scan signal outputted when the touch device is in operation, that is, in combination with FIG. 5 and FIG. 8 , the processor 101 controls each drive electrode of the touch device 300 .
  • the electronic device can detect that the charging current is equal to zero. It can also be understood that the electronic device sets a current threshold with a value of zero, when the charging current is equal to zero, that is, no greater than When the first current threshold is described, it is determined that the battery is not being charged.
  • the touch control output touch signal can select sleep or normal operation according to a specific working state, for example, but not limited to, when the mobile phone is in a lock screen state, The touch signal is not output, so as to save the power consumption and prolong the battery life.
  • the electronic device is a touch signal that outputs different signal strengths according to the determination process in the method of the embodiment of the present invention. .
  • the electronic device can control the touch by adjusting the touch driving voltage or the touch driving current of the touch device or adjusting the two at the same time.
  • the amplitude of the touch signal output by the control device outputs the first touch signal or the second touch signal.
  • the driving manners of different touch devices are different.
  • the manner in which the processor 101 drives the touch signals can be driven by voltage or current.
  • the voltage driving mode is that when a device receives a change in voltage input, the external characteristic changes greatly. The current change is small.
  • the light-emitting diode is a current-driven device, and the input voltage is basically a certain value, and the current can be changed.
  • Brightness, reduced current and reduced brightness is a current-driven device; gas-type neon is a voltage-driven device, When the voltage is low, the light is not bright, the voltage is increased, and the current is still small after the light is turned on. Therefore, according to the driving type of the touch device, the touch driving voltage or the touch driving current is specifically adjusted, or both are adjusted at the same time.
  • the second touch signal may be dynamically adjusted to further improve the ability to resist charging noise interference.
  • the electronic device may detect the current charging current through the power device 111 and send it to the processor 101, and the processor 101 adjusts the second touch signal according to the current charging current, where the The signal strength of the second touch signal may increase linearly or non-linearly as the charging current increases or the magnitude of the charging noise increases.
  • the electronic device may detect the current charging noise through the power device 111 or through the touch device and send the same to the processor 101, and the processor 101 adjusts the second touch signal according to the current charging noise.
  • the signal strength of the second touch signal may increase linearly or non-linearly as the magnitude of the charging noise increases or the magnitude of the charging noise increases.
  • the electronic device may detect a magnitude of charging noise at a frequency corresponding to a frequency of the second touch signal, and when the amplitude of the charging noise increases at the frequency, increase the second touch appropriately.
  • the signal strength of the control signal ensures that the second touch signal is not overwhelmed by the charging noise at that frequency.
  • the electronic device may adjust the touch signal intervalally according to the magnitude of the charging current or the charging noise. That is, when the charging current exceeds a preset threshold (ie, the second current threshold), or the magnitude of the charging noise exceeds a predetermined threshold, the processor 101 controls the touch signal output by the touch device to be the third touch.
  • a preset threshold ie, the second current threshold
  • the processor 101 controls the touch signal output by the touch device to be the third touch.
  • the third touch signal is greater than the second touch signal; when the charging current is reduced to be less than or equal to the second current threshold, or the amplitude of the charging noise is reduced to be less than or equal to the preset threshold, the processor The touch control device outputs the second touch signal; and when the charging current is less than a first current threshold greater than zero or the electronic device stops charging according to a preset condition, the processor 101 The touch device can be controlled to output the first touch signal.
  • the embodiment of the present invention also includes setting a fourth current threshold, a fifth current threshold, and the like according to a charging current threshold interval or according to a charging noise threshold interval.
  • 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.
  • the first touch signal and the second touch signal may also have different frequencies.
  • the electronic device may acquire charging noise at a corresponding frequency of the second touch signal. Intensity, if the charging noise intensity is greater than a certain threshold, controlling the touch device to adjust the frequency of the output second touch signal, so that the adjusted frequency of the second touch signal corresponds to the charging noise signal strength Less than the signal strength threshold to further reduce the impact of charging noise on the touch signal.
  • FIG. 12 is a schematic diagram showing time domain and frequency domain signals of a touch signal in an uncharged and charged state of an electronic device according to an embodiment of the present invention. As shown in FIG. 12, the touch device outputs during charging of the electronic device. The amplitude of the TP signal is higher than the amplitude of the uncharged state of the electronic device.
  • FIG. 13 is a schematic diagram showing time domain and frequency domain signals of a touch signal and a charging signal in an uncharged state and a charged state according to an embodiment of the present invention.
  • irregular charging noise is superimposed on the power frequency (the frequency of the AC power source used in industry), and the amplitude of the touch signal is increased during charging, compared to the existing ones shown in FIGS. 1 and 2.
  • the TP signal is stronger than the charging noise, and the TP signal is not "submerged" by the charging noise.
  • the TP signal is a group of multiple pulses, and the identification touch uses multiple pulse averaging for a single pulse.
  • the superimposed interference can be filtered out, thus improving the anti-interference ability of the TP signal under the state of charge.
  • the method further includes step 404, in the step 404, detecting the Whether the electronic device ends charging, if it has ended, the step 402 is performed, and if not, the step 403 is continued.
  • FIG. 14 is a schematic flowchart diagram of a signal control method according to another embodiment of the present invention.
  • step 411 it is detected whether the electronic device is charging and charging. The current is greater than the first current threshold. If no, step 412 is performed. If yes, step 413 is performed; the step 412 is the same or substantially the same as the step 402, and the step 413 is the same or substantially the same as the step 403. For the sake of brevity, I will not repeat them.
  • the method further includes step 414, which is the same or substantially the same as the step 404. For the sake of brevity, no further details are provided.
  • the charging process of the electronic device can be divided into trickle charging, constant current charging, and constant voltage charging.
  • the charging current is relatively small, and the charging noise is on the touch.
  • the interference of the signal is small, therefore, the electronic device can set the first current threshold to a current value within a current range of the trickle charging process and the constant voltage charging, so that the electronic device is trickle charged and
  • the touch signal output by the touch device is the first touch signal, which reduces power consumption and helps to shorten the charging time, and when the electronic device is in constant current charging, that is, the charging current is compared.
  • the touch signal output by the touch device is a second touch signal to reduce charging noise interference in the fast charging phase.
  • an electronic device includes a charge detecting device, a control device, and a touch device; wherein the charge detecting device can detect whether the electronic device is charging current when charging and charging
  • the control device can control the touch device to output a touch signal.
  • the process of outputting the touch signal by the electronic device may include: when the charging detecting device detects that the charging device is not charging or charging, the charging current is less than or equal to the first current threshold, the controlling device controls the touch
  • the touch signal output by the control device is a first touch signal; when the charging device detects that the electronic device is charging and the charging current is greater than the first current threshold, the control device controls the output of the touch device
  • the touch signal is a second touch signal, wherein the signal strength of the second touch signal is greater than the signal strength of the first touch signal, that is, the control device controls the touch during charging The device increases the output of the touch signal.
  • the charge detection device can be a charge management chip, ie, a charge control and charge detection chip, which can be a control chip, such as 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 the display screen, that is, the touch screen.
  • a charge management chip ie, a charge control and charge detection chip, which can be a control chip, such as processor 101 shown in FIG. 3
  • the control device may include two independently arranged main control chips and a touch control chip; in some embodiments, the touch device may touch the display screen, that is, the touch screen.
  • FIG. 15 is a schematic structural diagram of an apparatus for an electronic device according to some embodiments of the present invention.
  • 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.
  • FIG. 16 is a flow chart showing a method for outputting a touch signal by an electronic device according to an embodiment of the present invention.
  • the charging control and charging detecting chip 501 detects whether the battery 104 is charging. The state communicates with the main control chip 502. When it is detected that the charging state is detected, the charging control and charging detecting chip 501 sends a charging confirmation signal to the main control chip 502.
  • the main control chip 502 controls the location.
  • the touch control chip 503 is configured to drive the touch screen 504 to increase the signal strength of the output touch signal.
  • the touch control chip 503 can be implemented in the touch control chip 503 to write the normal working mode and charge. In the working mode, when the touch control chip 503 is in the normal working mode, the touch control chip 503 drives the output of the touch screen 504. The signal strength of the control signal is low.
  • the main control chip 502 after receiving the charging confirmation signal, sends an operation mode switching instruction to the touch control chip 503.
  • the touch control chip 503 is in accordance with the instruction.
  • the touch control chip 503 drives the touch signal output by the touch screen 504 to operate at the highest signal allowed. Intensity, specifically, as shown in step 6031, the touch control chip 503 outputs a normal driving voltage and/or a driving current, so that the touch screen 504 outputs a normal touch signal (that is, a lower 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.
  • the charging control and charging detecting chip 501 sends a charging end signal to the main control chip 502, and after receiving the signal, the main control chip 502 sends the work to the touch control chip 503 again.
  • the mode switching command, the touch control chip 503 is switched from the charging operation mode to the normal working mode, and the touch control chip 503 drives the touch signal output by the touch screen 504 with a lower signal strength.
  • the touch control chip 503 has the ability to dynamically change the driving voltage/drive current, and the driving voltage/drive current can be dynamically adjusted according to the received related command without presetting the different operating modes.
  • the electronic device 100 when the electronic device 100 is in a charging state, the electronic device 100 can display the charging prompt information 701 on the display device, such as the touch display screen 104.
  • the electronic device can display the prompt information 702 on the touch display screen 104 to prompt the user to increase the output touch signal, thereby improving the use experience of the interactive information. .
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it 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.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Abstract

本发明提供了多种输出触控信号的方法和电子设备，在所述电子设备在未充电或在充电时充电电流小于等于第一电流阈值，所述电子设备的触控装置输出的触控信号为第一触控信号；在所述电子设备在充电且充电电流大于所述第一电流阈值，所述触控装置输出的触控信号为第二触控信号。所述电子设备在未充电时，输出一个触控信号，所述电子设备在充电过程中，根据充电电流适当提高所述触控装置输出的触控信号，从而有效降低充电噪声对触控信号的干扰，同时在未充电时避免电池电量过度损耗。

Description

一种输出触控信号的方法和电子设备
本申请要求于2017年3月13日提交中国专利局、申请号为201710147628.8、发明名称为“降低充电噪声干扰的方法和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电子技术领域，尤其涉及一种输出触控信号的方法和电子设备。
背景技术
随着通信技术的不断发展，电子设备，例如手机、平板电脑等，在人们的日常生活中越来越普及。电子设备具有各种触控功能的装置，能够提供人机交互功能。其中，触控装置可以包括能够检测触摸位置的触摸屏(英文：Touch Panel，简称：TP)、能够识别指纹纹路的指纹识别器等。触摸屏可以采用电容式或压力式识别技术，指纹识别器可以采用光学成像、超声波反射、半导体电容变化等识别技术。其中，投射式电容(Projective Capacitive)触控技术因其技术成熟、识别率高等特点，在当前电子设备上触控装置得到广泛应用。
然而，触控装置一直深受充电时电磁干扰的影响，尤其是采用投射式电容触控技术的触控装置，影响更大。一般手机在充电状态时，充电器的共模噪声通过充电口(通常为USB接口)进入手机内部，由于手机充电电路与触控显示屏/指纹识别器距离很近，相当一部分充电噪声会耦合到触控显示屏/指纹识别器，而触控显示屏/指纹识别器的工作状态却未针对该噪声常常做出有效改变，常常正在充电的手机时，用户使用触控装置会出现触摸无反应、拨号联动、屏幕乱跳、应用自动打开、指纹解锁失败等问题，严重影响使用体验。
图1示出现有技术中触控装置的触控信号(TP信号)的时域和频域信号示意图，图2示出在触摸屏表面检测TP信号的频域信号示意图。结合图1，TP信号在未充电和充电状态下信号强度保持不变，其中，在未充电状态下无充电噪声干扰，TP信号可以正常识别用户的各种操作并给出正确响应，而在充电状态下，充电噪声耦合到TP信号上，有可能被识别为用户操作而出现自动触摸、用户真正操作时出现错误触点等问题，另一方面该充电噪声与TP信号叠加，可能导致触控响应出错或无响应，出现屏幕乱跳和冻屏现象。如图2所示，当有较大充电噪声时TP信号会被“淹没”在充电噪声中，导致触控功能无法正常使用。
随着电子设备布局更加紧凑和芯片尺寸的进一步降低，触摸屏和指纹识别器对外界干扰更加敏感，因此充电干扰触摸屏和指纹问题更加严重。
发明内容
为解决上述技术问题，本发明实施例提供了多种输出触控信号的方法和电子设备，以有效降低充电噪声对触控装置输出的触控信号的干扰。
根据本发明第一方面提供的一种输出触控信号的方法，其中，所述方法包括：当所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值，所述电子设备的触控装置输出的触控信号为第一触控信号；当所述电子设备在充电且充电电流大于所述第一电流阈值，所述触控装置输出的触控信号为第二触控信号，其中，所述第二触控信号的信号强度大于所述第一驱动信号的信号强度。也就是说，所述电子设备未充电时，所述触控装置工作时输出触控信号，所述电子设备在充电过程时，根据充电电流适当提高所述触控装置工作时输出的 触控信号，从而有效降低充电噪声对触控信号的干扰，同时能够降低在未充电时电池电量的过度损耗。
其中，所述第一电流阈值可以为零或为大于零的一个数值。
在一些可能的实现方式中，所述第一电流阈值设置为零，所述方法包括：当所述电子设备未在充电，所述电子设备的触控装置输出的触控信号为所述第一触控信号；当所述电子设备在充电，所述触控装置输出的触控信号为所述第二触控信号。
在一些可能的实现方式中，所述第一电流阈值设置为一个大于零的值，所述方法包括：当所述电子设备未在充电或者在充电时充电电流小于等于所述第一电流阈值，所述电子设备的触控装置输出的触控信号为所述第一触控信号；当所述电子设备的充电电流大于所述第一电流阈值，所述触控装置输出的触控信号为所述第二触控信号。
在一些实施例中，所述电子设备通过调整所述触控装置的触控驱动电压和/或触控驱动电流，以调整所述触控装置工作时输出的触控信号。
在一些实施例中，其中，所述方法还包括：当所述电子设备在充电且其充电电流大于所述第二电流阈值，所述触控器件输出的触控信号为第三触控信号，其中，所述第三触控信号的信号强度大于所述第二触控信号的信号强度，所述第二电流阈值大于所述第一电流阈值。
在一些实施例中，所述电子设备在充电且充电电流大于所述第一电流阈值时，所述方法还包括：检测充电电流值，根据所述充电电流值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电电流的增大而线性或非线性增大。
在一些实施例中，所述电子设备在充电且充电电流大于所述第一电流阈值时，所述方法还包括：检测所述第二触控信号的频率对应的频率下的充电噪声的幅值，根据所述频率下的充电噪声的幅值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述频率下的充电噪声的幅值的增大而线性、非线性增大、或者区间性地增大。
结合前述第一方面的各实施例的任一实施例，在本实施例中，所述方法还包括：当所述触控装置输出的所述触控信号为所述第二触控信号，在所述电子设备的显示屏上显示提示消息。
在另一种可能的实现方式中，所述方法还包括：当所述触控装置输出的触控信号为所述第一触控信号，在所述电子设备的显示屏上显示第一提示消息；当所述触控装置输出的所述触控信号为所述第二触控信号，在所述电子设备的显示屏上显示第二提示消息，所述第二提示消息不同于所述第一提示消息。
结合前述第一方面的各实施例的任一实施例，在本实施例中，所述方法还包括：当所述电子设备在充电且充电电流大于所述第一电流阈值，检测所述第二触控信号的频率对应的充电噪声的信号强度；当该频率对应的充电噪声的信号强度大于信号强度阈值，调整所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值。调整所述第二触控信号的频率，可以进一步降低充电噪声对所述触控信号的干扰。
根据本发明第二方面提供的一种电子设备，所述电子设备包括充电检测装置、控制装置和触控装置；所述充电检测装置用于检测电子设备是否在充电和充电时的充电电流；所述控制装置用于控制所述触控装置输出触控信号；其中，在所述充电检测装置检测到所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值，所述控制装置控制所述触控装置输出的触控信号为第一触控信号；在所述充电装置检测到所述电子设备在充电且充电电流大 于所述第一电流阈值，所述控制装置控制所述触控装置输出第二触控信号，其中，所述第二触控信号的信号强度大于所述第一触控信号的信号强度。
其中，所述第一电流阈值可以为零或为大于零的一个数值。
在一些可能的实现方式中，所述第一电流阈值设置为零，当所述充电检测装置检测到所述电子设备未在充电，所述控制装置控制所述触控装置输出的触控信号为所述第一触控信号；当所述充电检测装置检测到所述电子设备在充电，所述控制装置控制所述触控装置输出的触控信号为所述第二触控信号。
在一些可能的实现方式中，所述第一电流阈值设置为一个大于零的值，当所述充电检测装置检测到所述电子设备未在充电或者在充电时充电电流小于等于所述第一电流阈值，所述控制装置控制所述触控装置输出的触控信号为所述第一触控信号；当所述电子设备的充电电流大于所述第一电流阈值，所述控制装置控制所述触控装置输出的触控信号为所述第二触控信号。
在一些实施例中，所述充电检测装置可以是充电管理芯片，所述控制装置可以包括主控芯片和触摸控制芯片，所述触控装置可以是触摸板、指纹识别器、触控显示屏(即触摸屏)等。
其中，所述触控装置可以为电容识别式触控装置。
在一些实施例中，所述控制装置用于调整所述触控装置的触控驱动电压和/或触控驱动电流，以调整所述触控装置输出的触控信号。
在一些实施例中，当所述充电检测装置检测到所述电子设备在充电且充电电流大于所述第二电流阈值，所述控制装置控制所述触控装置输出的触控信号为第三触控信号，所述触控器件输出的触控信号为第三触控信号，其中，所述第三触控信号的信号强度大于所述第二触控信号的信号强度，所述第二电流阈值大于所述第一电流阈值。
在一些实施例中，所述控制装置获取所述充电检测装置检测的充电电流的值，根据所述充电电流的值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电电流的增大而线性或非线性增大。
在一些实施例中，所述控制装置获取所述充电检测装置检测的充电电流的值，根据所述充电电流的值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电噪声的幅值的增大而线性或非线性增大。
结合前述第二方面的各实施例的任一实施例，在本实施例中，所述电子设备还包括：显示装置，用于在所述触控装置输出触控信号为所述第一触控信号时，显示第一提示消息，在所述触控装置输出触控信号为所述第二触控信号时，显示第二提示消息，其中，所述第二提示消息不同于所述第一提示消息。
结合前述第二方面的各实施例的任一实施例，在本实施例中，所述电子设备还包括：噪声信号检测装置，其中，所述噪声信号检测装置用于，当所述电子设备在充电且充电电流大于所述第一电流阈值，检测所述第二触控信号的频率对应的充电噪声的信号强度；所述控制装置还用于，当所述噪声信号检测装置检测到所述第二触控信号的频率对应的充电噪声的信号强度大于信号强度阈值，控制所述触控装置调整输出的所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值。调整所述第二触控信号的频率，可以进一步降低充电噪声对所述触控信号的干扰。
根据本发明第三方面提供的一种在具有显示装置的电子设备上的图形用户界面，其中， 所述图形用户界面包括：显示在显示装置上的显示界面，其中，响应于所述电子设备中触控装置根据第一方面中各实施例所述的方法中输出的触控信号为所述第二触控信号时，在所述显示界面上显示通知信息。
根据本发明第四方面提供的一种电子设备，所述电子设备包括：触控装置；一个或多个处理器；存储器；和一个或多个应用程序，其中所述一个或多个程序存储在所述存储器中并且被配置为由所述一个或多个处理器执行，所述第一个或多个程序包括用于以下操作的指令：检测所述电子设备是否在充电和充电时的充电电流；在检测到所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值，控制所述触控装置输出的触控信号为第一触控信号；在检测到所述电子设备在充电且充电电流大于所述第一电流阈值，控制所述触控装置输出第二触控信号，其中，所述第二触控信号的信号强度大于所述第一触控信号的信号强度。
在一些实施例中，所述一个或多个程序还包括用于以下操作的指令：通过调整所述触控装置的触控驱动电压和/或触控驱动电流，以调整所述触控装置输出的触控信号。
在一些实施例中，所述一个或多个程序还包括用于以下操作的指令：当所述电子设备在充电且其充电电流大于所述第二电流阈值，控制所述触控器件输出的触控信号为第三触控信号，其中，所述第三触控信号的信号强度大于所述第二触控信号的信号强度，所述第二电流阈值大于所述第一电流阈值。
在一些实施例中，所述电子设备在充电且充电电流大于所述第一电流阈值时，所述一个或多个程序还包括用于以下操作的指令：检测充电电流值，根据所述充电电流值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电电流的增大而线性或非线性增大。
结合前述第四方面的各实施例的任一实施例，在本实施例中，所述电子设备还包括显示屏，所述一个或多个程序还包括用于以下操作的指令：当所述触控装置输出的触控信号为所述第一触控信号，在所述电子设备的显示屏上显示第一提示消息；当所述触控装置输出的所述触控信号为所述第二触控信号，在所述电子设备的显示屏上显示第二提示消息，所述第二提示消息不同于所述第一提示消息。
结合前述第四方面的各实施例的任一实施例，在本实施例中，所述一个或多个程序还包括用于以下操作的指令：当所述电子设备在充电且充电电流大于所述第一电流阈值，检测所述第二触控信号的频率对应的充电噪声的信号强度；当该频率对应的充电噪声的信号强度大于信号强度阈值，调整所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值。
根据本发明第五方面提供的一种计算机可读存储介质，包括指令，当其在具有触控装置的电子设备上运行时，使得电子设备执行前述第一方面各实施例中任一项所述的方法。
根据本发明六方面提供第一种计算机程序产品，当其在具有触控装置的电子设备上运行时，使得电子设备执行前述第一方面各实施例中任一项所述的方法。
应当理解的是，本发明中对技术特征、技术方案、有益效果或类似语言的描述并不是暗示在任意的单个实施例中可以实现所有的特点和优点。相反，可以理解的是对于特征或有益效果的描述意味着在至少一个实施例中包括特定的技术特征、技术方案或有益效果。因此，本说明书中对于技术特征、技术方案或有益效果的描述并不一定是指相同的实施例。进而，还可以任何适当的方式组合本实施例中所描述的技术特征、技术方案和有益效果。本领域技术人员将会理解，无需特定实施例的一个或多个特定的技术特征、技术方案或有益效果即可 实现实施例。在其他实施例中，还可在没有体现所有实施例的特定实施例中识别出额外的技术特征和有益效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要地介绍。
图1示出现有技术中触控装置的触控信号的时域和频域信号示意图；
图2示出在触摸屏表面检测TP信号的频域信号示意图；
图3示出本发明一些实施例中手机的硬件结构示意图；
图4示出本发明一些实施例中所述电子设备的外观结构示意图；
图5示出本发明一些实施例中电容式触摸屏的结构示意图；
图6a和图6b示出本发明一些实施例中触控显示屏的简要结构示意图；
图7a和图7b示出本发明一些实施例中在无触摸和有触摸时所述驱动电极和所述感应电极之间的电容变化的示意图；
图8示出本发明一些实施例中触摸信号检测过程的信号时序示意图；
图9示出本发明一些实施例中指纹识别器的简要结构示意图；
图10示出本发明一些实施例中电子设备充电过程的示意图；
图11示出根据本发明一些实施例提供的电子设备输出触控信号的方法的流程示意图；
图12示出本发明一些实施例提供的在电子设备未充电和充电状态的触控信号的时域及频域信号示意图；
图13示出本发明一些实施例提供的在未充电状态和充电状态的触控信号和充电信号的时域及频域信号示意图；
图14示出根据本发明另一些实施例提供的信号控制方法的流程示意图；
图15示出本发明一些实施例提供的一种电子设备的装置结构示意图；
图16示出本发明一些实施例提供的电子设备输出触控信号的方法流程示意图；
图17示出本发明一些实施例提供的电子设备的触控装置在输出的触控信号为第二触控信号时界面示意图流程示意图。
在附图中，相同的标好表示相应的部分。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，而非全部。对于本领域普通技术人员来讲，在没有付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
具体实施方式
本发明实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本发明的限制。如在本发明的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”和“该”旨在也包括复数表达形式，除非其上下文中明确地有相反指示。还应当理解，本发明中可能使用的术语“和/或”是指并包含一个或多个相绑定的列出项目的任何或所有可能组合。
本发明实施例中提及的电子设备为具有采用投射式电容技术的触控装置(也就是电容式触控装置)，所述电子设备可以是手机、移动电话、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、数码相机、数字摄影机、投影设备、个人数字助理(Personal  Digital Assistant，简称PDA)、电子书阅读器(英文：E-book Reader)或可穿戴式设备(Wearable Device)、虚拟现实智能设备等，所述触控装置可以包括能够识别触摸位置的触摸板、触控显示屏，及能够识别用户手指指纹纹路的指纹识别器等。
图3示出本发明一些实施例中手机的硬件结构示意图，如图3所示，本发明实施例中的电子设备可以为手机100。下面以手机100为例对实施例进行具体说明。应该理解的是，图示手机100仅是电子设备的一个范例，并且手机100可以具有比图中所示出的更多的或者更少的部件，可以组合两个或更多的部件，或者可以具有不同的部件配置。图中所示出的各种部件可以在包括一个或多个信号处理和/或专用集成电路在内的硬件、软件、或硬件和软件的组合中实现。
如图3所示，手机100具体可以包括：处理器101、射频(RF)电路102、存储器103、触摸屏104、蓝牙装置105、一个或多个传感器106、Wi-Fi装置107、定位装置108、音频电路109、外设接口110、电源装置111以及指纹采集器件(即指纹识别器)112等部件。这些部件可通过一根或多根通信总线或信号线(图3中未示出)进行通信。本领域技术人员可以理解，图3中示出的硬件结构并不构成对手机100的限定，手机100可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
下面结合图3对手机100的各个部件进行具体的介绍。
处理器101是手机100的控制中心，利用各种接口和线路连接手机100的各个部分，通过运行或执行存储在存储器103内的应用程序(以下可以简称App)，以及调用存储在存储器103内的数据和指令，执行手机100的各种功能和处理数据。在一些实施例中，处理器101可包括一个或多个处理单元；处理器101还可以集成应用处理器和调制解调处理器；其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器101中。处理器101可以是集成芯片。在本发明一些实施例中，上述处理器101还可以包括指纹验证芯片，用于对采集到的指纹进行验证。
射频电路102可用于在收发信息或通话过程中，无线信号的接收和发送。具体地，射频电路102可以将基站的下行数据接收后，给处理器101处理；另外，将涉及上行的数据发送给基站。通常，射频电路包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频电路102还可以通过无线通信和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯系统、通用分组无线服务、码分多址、宽带码分多址、长期演进、电子邮件、短消息服务等。
存储器103用于存储应用程序以及数据，处理器101通过运行存储在存储器103的应用程序以及数据，执行手机100的各种功能以及数据处理。存储器103主要包括存储程序区以及存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)；存储数据区可以存储根据使用手机100时所创建的数据(比如音频数据、电话本等)。此外，存储器103可以包括高速随机存取存储器，还可以包括非易失存储器，例如磁盘存储器件、闪存器件或其他易失性固态存储器件等。存储器103可以存储各种操作系统，例如苹果公司所开发的
Figure PCTCN2017083659-appb-000001
操作系统，谷歌公司所开发的
Figure PCTCN2017083659-appb-000002
操作系统等。
触摸屏104可以包括触控板104-1和显示器104-2。其中，触控板104-1可采集手机100的用户在其上或附近的触摸事件(比如用户使用手指、触控笔等任何适合的物体在触控板 104-1上或在触控板104-1附近的操作)，并将采集到的触摸信息发送给其他器件例如处理器101。其中，用户在触控板104-1附近的触摸事件可以称之为悬浮触控；悬浮触控可以是指，用户无需为了选择、移动或拖动目标(例如图标等)而直接接触触控板，而只需用户位于电子设备附近以便执行所想要的功能。在悬浮触控的应用场景下，术语“触摸”、“接触”等不会暗示用于直接接触触摸屏，而是附近或接近的接触。能够进行悬浮触控的触控板104-1可以采用电容式、红外光感以及超声波等实现。触控板104-1可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再发送给处理器101，触摸控制器还可以接收处理器101发送的指令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型来实现触控板104-1。显示器(也称为显示屏)104-2可用于显示由用户输入的信息或提供给用户的信息以及手机100的各种菜单。可以采用液晶显示器、有机发光二极管等形式来配置显示器104-2。触控板104-1可以覆盖在显示器104-2之上，当触控板104-1检测到在其上或附近的触摸事件后，传送给处理器101以确定触摸事件的类型，随后处理器101可以根据触摸事件的类型在显示器104-2上提供相应的视觉输出。虽然在图3中，触控板104-1与显示屏104-2是作为两个独立的部件来实现手机100的输入和输出功能，但是在某些实施例中，可以将触控板104-1与显示屏104-2集成而实现手机100的输入和输出功能。可以理解的是，触摸屏104是由多层的材料堆叠而成，本发明实施例中只展示出了触控板(层)和显示屏(层)，其他层在本发明实施例中不予记载。另外，在本发明其他一些实施例中，触控板104-1可以覆盖在显示器104-2之上，并且触控板104-1的尺寸大于显示屏104-2的尺寸，使得显示屏104-2全部覆盖在触控板104-1下面，或者，上述触控板104-1可以以全面板的形式配置在手机100的正面，也即用户在手机100正面的触摸均能被手机感知，这样就可以实现手机正面的全触控体验。在其他一些实施例中，触控板104-1以全面板的形式配置在手机100的正面，显示屏104-2也可以以全面板的形式配置在手机100的正面，这样在手机的正面就能够实现无边框(Bezel)的结构。
在本发明实施例中，手机100还可以具有指纹识别功能。例如，可以在手机100的背面(例如后置摄像头的下方)配置指纹识别器112(也叫指纹采集器件)，或者在手机100的正面(例如触摸屏104的下方)配置指纹识别器。在一些实施例中，手机100的触摸屏104下方配置有指纹识别器112，该指纹识别器112可以在一次触摸事件中采集一次指纹。在一些实施例中，在手机100的背面有放置摄像头的区域201，在该区域201中配置了两个摄像头，以增强采集图像的质量；在该区域201的下方配置了指纹识别器112，该指纹识别器112可以在一次触摸事件中采集一次指纹。
另外，也可以通过在触摸屏104中配置指纹识别器112来实现指纹识别功能，即指纹识别器112可以与触摸屏104集成在一起来实现手机100的指纹识别功能。在这种情况下，该指纹识别器112可以配置在触摸屏104中，可以是触摸屏104的一部分，也可以以其他方式配置在触摸屏104中。例如，在触摸屏104中的四个不同位置配置了多个指纹识别器，触摸屏104可以同时获取多个触摸事件，而只采集其中一个触摸事件的一个指纹或同时采集所有触摸事件的所有指纹。在其他一些实施例中，上述多个指纹识别器的位置可以是在触摸屏104的下半部，特别是可以在用户握持手机100时大拇指所能达到的触摸屏104区域配置指纹识别器112，这样能更方便用户单手操作手机。
另外，该指纹识别器112还可以被实现为全面板指纹识别器，因此，可以把触摸屏104看成是任何位置都可以进行指纹采集的一个面板。该指纹识别器112可以将采集到的指纹发送给处理器101，以便处理器101对该指纹进行处理(例如指纹验证等)。本发明实施例中的指纹识别器112的主要部件是指纹传感器。
在本发明实施例中，可以在触摸屏104中的一固定位置采集指纹；也可以在触摸屏104上的任何位置采集指纹；还可以在触摸屏104上同时获取多个触摸事件，指纹识别器112可以只采集其中一个触摸事件的一个指纹或者同时采集所有触摸事件的所有指纹。关于本发明实施例中在触摸屏中集成指纹识别器的具体技术，可以参见现有技术中一些具体的技术方案，在此不再赘述。手机100还可以包括蓝牙装置105，用于实现手机100与其他短距离的电子设备(例如手机、智能手表等)之间的数据交换。本发明实施例中的蓝牙装置可以是集成电路或者蓝牙芯片等。
手机100还可以包括至少一种传感器106，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节触摸屏104的显示器的亮度，接近传感器可在手机100移动到耳边时，关闭显示器的电源。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于手机100还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
Wi-Fi装置107，用于为手机100提供遵循Wi-Fi相关标准协议的网络接入，手机100可以通过Wi-Fi装置107接入到Wi-Fi接入点，进而帮助用户收发电子邮件、浏览网页和访问流媒体等，它为用户提供了无线的宽带互联网访问。在其他一些实施例中，该Wi-Fi装置107也可以作为Wi-Fi无线接入点，可以为其他电子设备提供Wi-Fi网络接入。
定位装置108，用于为手机100提供地理位置。可以理解的是，该定位装置108具体可以是全球定位系统(GPS)或北斗卫星导航系统、俄罗斯GLONASS等定位系统的接收器。定位装置108在接收到上述定位系统发送的地理位置后，将该信息发送给处理器101进行处理，或者发送给存储器103进行保存。在另外的一些实施例中，该定位装置108可以是辅助全球卫星定位系统(AGPS)的接收器，AGPS是一种在一定辅助配合下进行GPS定位的运行方式，它可以利用基站的信号，配合GPS卫星信号，可以让手机100定位的速度更快；在AGPS系统中，该定位装置108可通过与辅助定位服务器(例如手机定位服务器)的通信而获得定位辅助。AGPS系统通过作为辅助服务器来协助定位装置108完成测距和定位服务，在这种情况下，辅助定位服务器通过无线通信网络与电子设备例如手机100的定位装置108(即GPS接收器)通信而提供定位协助。在另外的一些实施例中，该定位装置108也可以是基于Wi-Fi接入点的定位技术。由于每一个Wi-Fi接入点都有一个全球唯一的MAC地址，电子设备在开启Wi-Fi的情况下即可扫描并收集周围的Wi-Fi接入点的广播信号，因此可以获取到Wi-Fi接入点广播出来的MAC地址；电子设备将这些能够标示Wi-Fi接入点的数据(例如MAC地址)通过无线通信网络发送给位置服务器，由位置服务器检索出每一个Wi-Fi接入点的地理位置，并结合Wi-Fi广播信号的强弱程度，计算出该电子设备的地理位置并发送到该电子设备的定位装置108中。
音频电路109、扬声器113、麦克风114可提供用户与手机100之间的音频接口。音频 电路109可将接收到的音频数据转换后的电信号，传输到扬声器113，由扬声器113转换为声音信号输出；另一方面，麦克风114将收集的声音信号转换为电信号，由音频电路109接收后转换为音频数据，再将音频数据输出至RF电路102以发送给比如另一手机，或者将音频数据输出至存储器103以便进一步处理。
外设接口110，用于为外部的输入/输出设备(例如键盘、鼠标、外接显示器、外部存储器、用户识别模块卡等)提供各种接口。例如通过通用串行总线(USB)接口与鼠标连接，通过用户识别模块卡卡槽上的金属触点与电信运营商提供的用户识别模块卡(SIM)卡进行连接。外设接口110可以被用来将上述外部的输入/输出外围设备耦接到处理器101和存储器103。
手机100还可以包括给各个部件供电的电源装置111(例如包括以下至少任一项：电池、电源管理芯片、充电管理芯片等)，电池可以通过电源管理芯片与处理器101逻辑相连，从而通过电源装置111实现管理充电、放电、以及功耗管理等功能。
尽管图3未示出，手机100还可以包括摄像头(前置摄像头和/或后置摄像头)、闪光灯、微型投影装置、近场通信(NFC)装置等，在此不再赘述。
以下实施例均可以在具有上述结构的手机100中实现。
图4示出本发明一些实施例中所述电子设备的外观示意图，电子设备可以是手机100，电子设备上具有触控显示屏104和指纹识别器112，在触控显示屏104上显示图形用户界面，例如图4中示例性地显示的各种应用程序的图标120。此外，电子设备外观可见的器件还包括以下任一种或几种组合：扬声器113、麦克风114、充电接口/耳机等各种接口、音量键/锁屏键等各种物理按键、摄像头、闪光灯等结构。
在一些实施例中，如图4示出的，所述触控显示屏104和所述指纹识别器112可以位于手机100同一面的两个区域。在一些实施例中，所述电子设备上的触控显示屏104和所述指纹识别器112也可以位于手机100的两个相对面，例如所述触控显示屏104在正面，所述指纹识别器112在背面。在另一些实施例中，所述触控显示屏104和所述指纹识别器112也可以位于同一区域中，不再赘述。
所述触控显示屏101显示内容的同时，可以检测手指或触控笔等在触摸区域表面上触摸的位置，替代鼠标或外接触控板，使用户能够方便地对所述触控显示屏的显示内容上进行交互操作。
其中，触控显示屏104可以有多种实现方式。如图3所示，以电容式触控显示屏300为例，电容式触控显示屏300包括一个设置在特定版图上形成的透明导体覆盖的绝缘体。当手指或其他物体触摸屏幕表面时，电容会发生变化，处理器101可以通过检测电容的变化确定触摸的位置。
电容式触控显示屏300具有电容传感结构，所述电容传感结构可以是互电容式传感结构或自电容式传感结构，其中，自电容式传感结构包括若干单独电极(individual electrodes)，互电容式传感结构包括驱动电极和感应电极。
图5示出本发明一些实施例中电容式触摸屏的结构示意图，其中，电容式触控显示屏300具有触摸传感区域，在触摸传感区域中具有传感结构，传感结构包括若干驱动电极301和若干感应电极302，驱动电极301和感应电极301可以是透光有机或透光无机导电材料，例如，ITO(Indium Tin Oxide)，ATO(Antimony Tin Oxide),TO(Tin Oxide)，或其他导电聚合物，例如碳纳米管(Carbon Nanotube)等。
在一些实施例中，电容式触控显示屏可以采用多层ITO层，驱动电极301和感应电极301形成矩阵式分布，以互相垂直的X轴、Y轴交叉分布做为电容矩阵，当手指触碰屏幕时，可通过所述X轴、Y轴的扫描，检测到触碰位置电容的变化，进而计算出手指触摸位置。
所述驱动电极301和所述感应电极302可以设置在基板上，并且二者相互绝缘，其中，基板可以是透明的非导性材料，例如玻璃或者塑料。塑料基板材料可以并不限于，PET(Polyethylene Terephthalate)，PEN(Polyethylene Naphthalate)，PC(Polycarbonate)等。
图6a和图6b示出本发明一些实施例中触控显示屏的简要结构示意图，如图6a所示，所述驱动电极301和所述感应电极302设置在基板303a的相对面，所述基板303a使二者相互电绝缘，在驱动电极301上形成一层透明的绝缘介质304和透明盖板305，所述绝缘介质304可以是透光胶，所述透明盖板305可以是塑料或玻璃。如图6b所示，所述驱动电极301和所述感应电极302分别设置在不同的基板303b和303c上，并在驱动电极301和感应电极302之间形成绝缘介质。
在所述互电容触控显示屏300感测在触摸操作或者接近操作前后通过感应电极线上检测到驱动电极线与感应电极线之间电容的改变。手指触摸或接近触控装置引起电容变化，电容变化导致检测电路检测到的电压或电荷量发生变化，处理器101通过检测到的电压或者电荷变化可以确认触摸事件。所述互电容触摸屏300将驱动信号提供给驱动电极线并与驱动信号同步地检测感应电极线，感测驱动电极301与感应电极302之间的电容变化。其中，驱动信号可以以各种形式产生，包括方波脉冲、正弦波脉冲、三角波脉冲等。所述互电容触控显示屏300利用电容检测用的驱动电极301和感应电极302，驱动电极301和感应电极302通过布线与处理器连接，所述处理器101输出驱动控制信号给驱动电极301，在非触摸状态和触摸状态，驱动电极301和感应电极302之间会发生电容变化，所述处理器101可以根据检测到的感应电极302上的感应信号(电容检测信号)变化，确定触摸的位置坐标。
图7a和图7b示出本发明一些实施例中在无触摸和有触摸时所述驱动电极和所述感应电极之间的电容变化的示意图，如图7a所示，当无触摸时，一所述驱动电极和一所述感应电极之间的电容为Cm1，如图7b所示，当有触摸时，一所述驱动电极和一所述感应电极之间的电容变化为Cm1与Cmg的串联后的电容，所述处理器101即可以通过感应电极检测到该电容变化，具体计算公式不再赘述。
图8示出本发明一些实施例中触摸信号检测过程的信号时序示意图，当所述处理器101依次给每个驱动电极301输入驱动信号Tx(Tx1，Tx2,…TxN，N为自然数)，当所有驱动电极全部扫描一遍为一个检测周期，随后，所述处理器101在从头依次给每个驱动电极301输入驱动信号Tx，如此周期性循环检测。所述处理器101通过感应电极302检测到电压VINT，通过电压VINT与参照电压VREF比较，进而获得电容检测信号，当有触摸时，结合图5b，驱动电极301与感应电极302之间的电容发生变化，使电压VINT发生变化，电容检测信号也发生变化，所述处理器101可以通过根据电容检测信号的变化确定触摸的位置。
上述触摸位置传感器可以用于检测手指或触控笔的位置。
类似地，所述指纹识别器112的结构可以是类似于触控显示屏104中触控装置的结构，尺寸上更小，图9示出本发明一些实施例中指纹识别器的简要结构示意图，例如图9所示的结构，指纹识别器112检测器用于检测指纹的纹路，由于手指纹路凸凹不平，凸点处和凹点处接触平板的实际距离大小就不一样，形成的电容/电感数值也就不一样，指纹识别器由此可以检测指纹的图形，指纹识别器112输出触控信号，并根据这个原理将采集到的不同的电容 检测数值汇总，发给处理器所述处理器101，完成指纹的采集，还可以根据检测到的图形，比对确定是否与预先存储的一个或多个指纹图形中的某一个相同，以进行指纹验证，进而执行其他交互动作。
如图10为充电器200为电子设备的充电示意图，当充电器200与接通外部电源接通，并未电子设备充电时，电子设备中的电源装置111可以配合处理器101完成充电过程，并将充电状态等信息发送给所述处理器101，所述处理器101可以获知电子设备是否处于充电状态以及在充电状态下的充电电流等，如图10，在常见的电子设备中，所述电子设备上的充电端口离所述指纹识别器112和触控显示屏104等触控装置比较近，为避免充电噪声对触控显示信号的干扰，本发明实施例提供了电子设备控制触控装置输出触控信号的方法，在未充电阶段，将所述触控装置的触控信号设置在一个较低的幅值(即较低的信号强度)，可以节省功耗延长电池使用时间，而在充电状态或在充电电流大于一定阈值时，提高所述触控装置的触控信号的信号强度，减小充电噪声对触控信号的干扰，进而降低充电对电子设备上触控装置的影响，保障手机充电时所述触控装置也能正常地工作。
下面将结合本发明实施例中的附图，以下以触控显示屏为例，对本发明实施例中的技术方案进行进一步描述，应当可以理解的是，以下实施例所实现的方法同样可以应用于指纹识别器等触控装置。
图11示出根据本发明一实施例提供的具有触控装置的电子设备，在触控装置工作时输出触控信号的方法的流程示意图，结合图3和图11，在步骤401中，电源装置111检测电子设备是否正在充电，如否，则执行步骤402，如是，则执行步骤403；在步骤402中，处理器101控制触控装置输出的触控信号为第一触控信号，触控装置可以是触控显示屏104或指纹采集器件112；在步骤403中，处理器101控制触控装置输出的触控信号为第二触控信号，其中，所述第二触控信号的幅值大于所述第一触控信号。
在本实施例中，所述触控信号为所述触控装置工作时输出的触控扫描信号，也就是结合图5和图8中，处理器101控制所述触控装置300的各驱动电极301输出的驱动信号(Tx1、Tx2…)的集合。
在步骤401中，所述电子设备可以通过检测充电电流是否等于零，也可以理解为，所述电子设备设定了一个值为零的电流阈值，当所述充电电流等于零时，也就是不大于所述第一电流阈值时，则判断为未在充电。
本领域技术人员能够理解的是，在发明的实施例中，所述触控装置输出触控信号可以根据具体工作状态选择休眠或正常工作，例如但不限于，在手机处于锁屏状态时，可以不输出触控信号，以节省功耗延长电池使用时间，但在正常工作输出触控信号时，所述电子设备是遵循本发明实施例所述方法中的判断过程输出不同信号强度的触控信号。
在步骤402和步骤403中，在本发明实施例中，所述电子设备可以通过调整所述触控装置的触控驱动电压或者触控驱动电流，或者同时调整上述二者，来控制所述触控装置输出的触控信号的幅值，输出所述第一触控信号或第二触控信号。
不同的触控装置的驱动方式不尽相同，处理器101驱动所述触控信号的方式可以电压驱动或电流驱动，其中，电压驱动方式是当一个器件接受电压的变化输入后，外部特性改变大而电流变化小，电流驱动方式是当一个器件接受电流的变化输入后，外部特性改变大而电压变化小，例如，发光二极管是电流驱动器件，其输入电压基本是一个确定值，提高电流可以改变亮度，减小电流降低亮度，是一个电流驱动型器件；气体型霓虹灯为电压驱动器件， 当电压低了连亮都不亮，提高电压，灯亮了以后电流还是很小。因此，根据触控装置的驱动类型，具体调整触控驱动电压或者触控驱动电流，或者同时调整上述二者。
在一些实施例中，在步骤403中，所述第二触控信号可以是动态调整的，进一步提高抗充电噪声干扰的能力。
在一种可能的实现方式中，所述电子设备可以通过所述电源装置111检测当前充电电流并发送给处理器101，处理器101根据当前充电电流调整所述第二触控信号，其中所述第二触控信号的信号强度可以随所述充电电流增大或者充电噪声的幅值的增大而线性或非线性增大。
在另一种可能的实现方式中，所述电子设备可以通过电源装置111或者通过触控装置检测当前充电噪声并发送给处理器101，处理器101根据当前充电噪声调整所述第二触控信号，其中所述第二触控信号的信号强度可以随所述充电噪声的幅值的增大或者充电噪声的幅值的增大而线性或非线性增大。在一些实施例中，所述电子设备可以检测第二触控信号的频率对应频率下的充电噪声的幅值，当该频率下充电噪声的幅值增大，则适当增大所述第二触控信号的信号强度，确保所述第二触控信号不被该频率下充电噪声所淹没。
在另一种可能的实现方式中，在前述实施例的基础上，所述电子设备可以根据充电电流或充电噪声的幅值，区间性地调整触控信号。也就是说，当充电电流超过一个预设阈值(也就是第二电流阈值)，或者充电噪声的幅值超过一个预设阈值，则处理器101控制触控装置输出的触控信号为第三触控信号，所述第三触控信号大于所述第二触控信号；当充电电流降低到小于等于第二电流阈值，或者充电噪声的幅值降低到小于等于前述的预设阈值，则处理器101可以控制所述触控装置输出所述第二触控信号；而当根据预设条件，所述充电电流小于一个大于零的第一电流阈值或者是所述电子设备停止充电，则处理器101可以控制所述触控装置输出所述第一触控信号。当然，本领域技术人员应当能够理解的是，在本发明实施例也包含根据充电电流阈值区间或根据充电噪声阈值区间设置第四电流阈值、第五电流阈值等等。
在一些实施例中，所述第一触控信号和所述第二触控信号可以具有相同的频率，而所述第二触控信号的幅值大于所述第一触控信号。
在另一些实施例中，所述第一触控信号和所述第二触控信号也可以具有不同的频率，具体地，所述电子设备可以获取在第二触控信号对应频率的充电噪声的强度，如果充电噪声强度大于一定阈值，则控制所述触控装置调整输出的所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值，以进一步降低充电噪声对触控信号的影响。
图12示出本发明一实施例提供的在电子设备未充电和充电状态的触控信号的时域及频域信号示意图，如图12所示，在所述电子设备充电过程中触控装置输出的TP信号的幅值高于所述电子设备未充电状态的幅值。图13示出本发明一实施例提供的在未充电状态和充电状态的触控信号和充电信号的时域及频域信号示意图。在充电时，不规则的充电噪声叠加在工频(工业上用的交流电源的频率)上，由于充电时提高了触控信号的幅值，相比于图1和图2所示的现有技术，TP信号强于充电噪声，TP信号没有被充电噪声所“淹没”，同时，从时域来看，TP信号都是多个脉冲为一组，识别触摸采用多个脉冲平均，对于单个脉冲叠加一点干扰是可以滤除，因而提高了TP信号在充电状态下的抗干扰能力。
进一步地，在一些实施例中，所述方法还包括步骤404，在所述步骤404中，检测所述 电子设备是否结束充电，如果已结束，则执行所述步骤402，如果未结束，则继续执行所述步骤403。
图14示出根据本发明另一些实施例提供的信号控制方法的流程示意图，基于图11所示的实施例，在本实施例中，在步骤411中，检测所述电子设备是否正在充电且充电电流大于第一电流阈值，如否，则执行步骤412，如是，则执行步骤413；所述步骤412与所述步骤402相同或基本相同，所述步骤413与所述步骤403相同或基本相同，简介起见，不再赘述。进一步地，在一些实施例，所述方法还包括步骤414，所述步骤414与所述步骤404相同或基本相同，简介起见，不再赘述。
在一些实施例中，所述电子设备的充电过程可以分为涓流充电、恒流充电和恒压充电，在涓流充电和恒压充电过程，充电电流相对较小，其充电噪声对触控信号的干扰较小，因此，所述电子设备可以将所述第一电流阈值设定在涓流充电过程和恒压充电的电流范围内的一个电流值，使所述电子设备在涓流充电和恒压充电过程中，所述触控装置输出的触控信号为第一触控信号，降低功耗，有助于缩短充电时间，而当所述电子设备处于恒流充电，也就是充电电流较大的快速充电阶段，所述触控装置输出的触控信号为第二触控信号，以降低快速充电阶段的充电噪声干扰。
根据本发明一方面提供的一种电子设备，所述电子设备包括充电检测装置、控制装置和触控装置；其中，所述充电检测装置可以检测所述电子设备是否在充电和充电时的充电电流；所述控制装置可以控制所述触控装置输出触控信号。所述电子设备输出触控信号的过程可以包括：在所述充电检测装置检测到所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值时，所述控制装置控制所述触控装置输出的触控信号为第一触控信号；在所述充电装置检测到所述电子设备在充电且充电电流大于所述第一电流阈值，所述控制装置控制所述触控装置输出的触控信号为第二触控信号，其中，所述第二触控信号的信号强度大于所述第一触控信号的信号强度，也就是在充电过程中，所述控制装置控制所述触控装置提高输出的触控信号。
在一些实施例中，所述充电检测装置可以是充电管理芯片，即充电控制和充电检测芯片，所述控制装置可以是控制芯片，例如图3所示的处理器101；在一些实施例中，所述控制装置可以包括两个独立设置的主控芯片和触摸控制芯片；在一些实施例中，所述触控装置可以触控显示屏，即触摸屏。
图15示出本发明一些实施例提供的一种电子设备的装置结构示意图，所述电子设备500包括充电控制和充电检测芯片501、主控芯片502、触摸控制芯片503、触摸屏504和电池505，图16示出本发明一实施例提供的电子设备输出触控信号的方法流程示意图，结合图15和图16，在步骤601中，所述充电控制和充电检测芯片501检测到电池104是否处于充电状态并与主控芯片502进行通信，当检测到处于充电状态，充电控制和充电检测芯片501向主控芯片502发送充电确认信号，接着，在步骤602和步骤603中，主控芯片502控制所述触摸控制芯片503，驱动所述触摸屏504提高输出的触控信号的信号强度，具体地，在一些实施例中，可用如下方案实现，在触摸控制芯片503中预先写入为正常工作模式和充电工作模式，触摸控制芯片503在正常工作模式时，触摸控制芯片503驱动触摸屏504输出的触控信号的信号强度较低，在步骤602中，当主控芯片502接收到该充电确认信号后，向触摸控制芯片503发送工作模式切换指令，在步骤603中，触摸控制芯片503根据所述指令，切换到充电工作模式时，触摸控制芯片503驱动触摸屏504输出的触控信号工作在允许的最高信号 强度，具体地，可以如步骤6031所示，所述触摸控制芯片503输出正常的驱动电压和/或驱动电流，使触摸屏504输出正常的触控信号(也就是较低的触控信号)，所述触摸控制芯片503输出较高的驱动电压和/或驱动电流，使触摸屏504输出较高的触控信号。
当充电器移除时或者充电电流小于一个电流阈值时，充电控制和充电检测芯片501向主控芯片502发送充电结束信号，主控芯片502接收到该信号后，再次向触摸控制芯片503发送工作模式切换指令，触摸控制芯片503由充电工作模式切换至正常工作模式，触摸控制芯片503驱动触摸屏504输出的信号强度较低的触控信号。在另一些实施例中，触摸控制芯片503具有动态改变驱动电压/驱动电流的能力，可不用预设不同工作模式，根据接到的相关指令动态调整驱动电压/驱动电流。
结合以上描述，如图17所示，在发明实施例中，当电子设备100处于充电状态时，所述电子设备100可以在显示装置上，例如触控显示屏104上显示充电提示信息701，当所述触控装置根据充电状态提高工作时输出的触控信号时，电子设备可以在触控显示屏104上显示提示信息702，提示用户当前已提高输出的触控信号，提高交互信息的使用体验。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
综上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照上述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对上述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (21)

  1. 一种输出触控信号的方法，其中，
    当所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值，所述电子设备的触控装置输出的触控信号为第一触控信号；
    当所述电子设备在充电且充电电流大于所述第一电流阈值，所述触控装置输出的触控信号为第二触控信号，其中，所述第二触控信号的信号强度大于所述第一驱动信号的信号强度。
  2. 根据权利要求1所述的方法，其中，所述电子设备通过调整所述触控装置的触控驱动电压和/或触控驱动电流，以调整所述触控装置输出的触控信号。
  3. 根据权利要求1或2所述的方法，其中，所述方法还包括：
    当所述电子设备在充电且其充电电流大于所述第二电流阈值，控制所述触控器件输出的触控信号为第三触控信号，其中，所述第三触控信号的信号强度大于所述第二触控信号的信号强度，所述第二电流阈值大于所述第一电流阈值。
  4. 根据权利要求1或2所述的方法，其中，所述电子设备在充电且充电电流大于所述第一电流阈值时，所述方法还包括：
    检测充电电流值，根据所述充电电流值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电电流的增大而线性或非线性增大。
  5. 根据权利要求1至4中任一项所述的方法，其中，所述方法还包括：
    当所述触控装置输出的所述触控信号为所述第二触控信号，在所述电子设备的显示屏上显示提示消息。
  6. 根据权利要求1至5中任一项所述的方法，其中，所述方法还包括：
    当所述电子设备在充电且充电电流大于所述第一电流阈值，检测所述第二触控信号的频率对应的充电噪声的信号强度；
    当该频率对应的充电噪声的信号强度大于信号强度阈值，调整所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值。
  7. 一种电子设备，所述电子设备包括充电检测装置、控制装置和触控装置；
    所述充电检测装置用于检测电子设备是否在充电和充电时的充电电流；
    所述控制装置用于控制所述触控装置输出触控信号；其中，
    在所述充电检测装置检测到所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值，所述控制装置控制所述触控装置输出的触控信号为第一触控信号；
    在所述充电装置检测到所述电子设备在充电且充电电流大于所述第一电流阈值，所述控制装置控制所述触控装置输出第二触控信号，其中，所述第二触控信号的信号强度大于所述第一触控信号的信号强度。
  8. 根据权利要求7所述的电子设备，其中所述控制装置用于调整所述触控装置的触控驱动电压和/或触控驱动电流，以调整所述触控装置输出的触控信号。
  9. 根据权利要求7或8所述的电子设备，其中，所述控制装置还用于：
    当所述充电检测装置检测到所述电子设备在充电且充电电流大于所述第二电流阈值，控制所述触控装置输出的触控信号为第三触控信号，所述触控器件输出的触控信号为第三触控信号，其中，所述第三触控信号的信号强度大于所述第二触控信号的信号强度，所述 第二电流阈值大于所述第一电流阈值。
  10. 根据权利要求7或8所述的电子设备，其中，所述控制装置还用于：
    获取所述充电检测装置检测的充电电流的值，根据所述充电电流的值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电电流的增大而线性或非线性增大。
  11. 根据权利要求7至10中任一项所述的电子设备，其中，所述电子设备还包括：
    显示装置，用于在所述触控装置输出触控信号为所述第二触控信号时，显示提示消息。
  12. 根据权利要求7至11中任一项所述的电子设备，其中，所述触控装置包括以下至少任一项：
    触摸板、触控显示屏、指纹识别器。
  13. 根据权利要求7至12中任一项所述的电子设备，其中，所述触控装置为电容识别式触控装置。
  14. 根据权利要求7至13中任一项所述的电子设备，其中，所述控制装置还包括：
    噪声监测单元，用于在所述电子设备处于充电且充电电流大于所述第一电流阈值时，检测所述第二触控信号的频率对应的充电噪声的信号强度；
    调频单元，用于当所述噪声信号检测装置检测到所述第二触控信号的频率对应的充电噪声的信号强度大于信号强度阈值，控制所述触控装置调整输出的所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值。
  15. 一种电子设备，所述电子设备包括：
    触控装置；
    一个或多个处理器；
    存储器；和
    一个或多个应用程序，其中所述一个或多个程序存储在所述存储器中并且被配置为由所述一个或多个处理器执行，所述第一个或多个程序包括用于以下操作的指令：
    检测所述电子设备是否在充电和充电时的充电电流；
    在检测到所述电子设备未在充电或在充电时充电电流小于等于第一电流阈值，控制所述触控装置输出的触控信号为第一触控信号；
    在检测到所述电子设备在充电且充电电流大于所述第一电流阈值，控制所述触控装置输出第二触控信号，其中，所述第二触控信号的信号强度大于所述第一触控信号的信号强度。
  16. 根据权利要求15所述的电子设备，其中，所述一个或多个程序还包括用于以下操作的指令：
    通过调整所述触控装置的触控驱动电压和/或触控驱动电流，以调整所述触控装置输出的触控信号。
  17. 根据权利要求15或16所述的电子设备，其中，所述一个或多个程序还包括用于以下操作的指令：
    当所述电子设备在充电且其充电电流大于所述第二电流阈值，控制所述触控器件输出的触控信号为第三触控信号，其中，所述第三触控信号的信号强度大于所述第二触控信号的信号强度，所述第二电流阈值大于所述第一电流阈值。
  18. 根据权利要求15或16所述的电子设备，其中，所述电子设备在充电且充电电流大于所述第一电流阈值时，所述一个或多个程序还包括用于以下操作的指令：
    检测充电电流值，根据所述充电电流值调整所述第二触控信号的信号强度，其中，所述第二触控信号的信号强度随所述充电电流的增大而线性或非线性增大。
  19. 根据权利要求15至18中任一项所述的电子设备，其中，所述电子设备还包括显示屏，所述一个或多个程序还包括用于以下操作的指令：
    当所述触控装置输出的所述触控信号为所述第二触控信号，在所述电子设备的显示屏上显示提示消息。
  20. 根据权利要求15至19中任一项所述的电子设备，其中，所述一个或多个程序还包括用于以下操作的指令：
    当所述电子设备在充电且充电电流大于所述第一电流阈值，检测所述第二触控信号的频率对应的充电噪声的信号强度；
    当该频率对应的充电噪声的信号强度大于信号强度阈值，调整所述第二触控信号的频率，以使调整后的所述第二触控信号的频率对应的充电噪声信号强度小于所述信号强度阈值。
  21. 一种计算机可读存储介质，包括指令，当其在具有触控装置的电子设备上运行时，使得电子设备执行权利要求1至6中任一项所述的方法。
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