WO2018157348A1 - 触控检测误报点的确定方法、电容触控装置及电子装置 - Google Patents

触控检测误报点的确定方法、电容触控装置及电子装置 Download PDF

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Publication number
WO2018157348A1
WO2018157348A1 PCT/CN2017/075432 CN2017075432W WO2018157348A1 WO 2018157348 A1 WO2018157348 A1 WO 2018157348A1 CN 2017075432 W CN2017075432 W CN 2017075432W WO 2018157348 A1 WO2018157348 A1 WO 2018157348A1
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Prior art keywords
capacitance
capacitance value
change
self
touch
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PCT/CN2017/075432
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English (en)
French (fr)
Inventor
陈小祥
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深圳市汇顶科技股份有限公司
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Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2017/075432 priority Critical patent/WO2018157348A1/zh
Priority to CN201780000088.9A priority patent/CN109074187A/zh
Publication of WO2018157348A1 publication Critical patent/WO2018157348A1/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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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 touch technologies, and in particular, to a method for determining a touch detection false alarm point, a capacitive touch device, and an electronic device.
  • Touch control such as application on electronic products such as smart terminals, allows the user to operate the terminal by gesture operation, and get rid of the traditional mechanical keyboard, making human-computer interaction more straightforward.
  • the capacitive touch technology has become one of the main means for implementing touch control on electronic products.
  • some are based on the principle of mutual-capacity touch, and some are based on the principle of self-touch.
  • the principle of touch can be briefly summarized as: mutual capacitance is formed between the driving electrode and the sensing electrode, and when a finger is touched, the mutual capacitance near the touch point is affected, thereby changing mutual mutual
  • the capacitance value of the capacitor determines the touch position by detecting the change in the capacitance value to determine the touch position.
  • an interference signal is often introduced during use, for example, a charger commonly used in the charging process of an electronic product is powered by a switching power supply.
  • the mode interference signal causes the occurrence of false alarm points, that is, the touch coordinates are detected at the position where there is no actual touch.
  • An object of the present invention is to provide a method for determining a touch detection false alarm point, a capacitive touch device, and an electronic device, which are used to solve at least the above problems in the prior art.
  • an embodiment of the present invention provides a method for determining a touch detection false alarm point, which includes:
  • the false alarm point caused by the interference signal is determined according to the determined capacitance value change of the mutual capacitance and the self-capacitance capacitance value change.
  • determining a capacitance value change of a mutual capacitance formed between the driving electrode and the sensing electrode, and a self-capacitance capacitance value change formed between the driving electrode and the reference ground includes :
  • the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode is respectively determined in different sampling periods, and the self-capacitance capacitance value formed between the driving electrode and the reference ground is changed.
  • the determining the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode comprises: forming a mutual capacitance formed between the driving driving electrode and the sensing electrode to determine the Corresponding to the current corresponding feature data, according to the scanned mutual capacitance, the current corresponding feature data and the reference feature data corresponding to the mutual touch in the non-touch state, determining the mutual capacitance formed between the driving electrode and the sensing electrode The capacitance value changes.
  • determining a self-capacitance capacitance value change formed between the driving electrode and the reference ground comprises:
  • the reference characteristic data determines a change in capacitance value of the self-capacitance formed between the driving electrode and the reference ground.
  • determining, according to the determined capacitance value change of the mutual capacitance and the self-capacitance capacitance value change, the false alarm point caused by the interference signal includes:
  • the touch position is determined according to the determined capacitance value change of the mutual capacitance, and the false alarm point caused by the interference signal in the touch position is determined according to the change of the self-capacitance capacitance value.
  • determining the touch according to the change in the capacitance value of the self-capacity include:
  • the touch position of the mutual capacitance is greater than or equal to the set mutual capacitance value change threshold, and the self-capacitance capacitance value is less than the set self-capacity change threshold value, and the touch position is determined as the false alarm point caused by the interference signal. .
  • determining, according to the determined capacitance value change of the mutual capacitance and the self-capacitance capacitance value change, the false alarm point caused by the interference signal includes:
  • Determining a first touch position according to the determined change in capacitance value of the mutual capacitance, determining a second touch position according to the change in the capacitance value of the self-capacitance, and determining interference due to the first touch position according to the second touch position The false positive point caused by the signal.
  • determining, according to the second touch location, a false positive point caused by the interference signal in the first touch location includes:
  • the included touch position is determined as a false positive point due to an interference signal.
  • the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode includes: the sensing signal that can be transmitted to the ground through the ground interference loop a change in the capacitance value of the mutual capacitance caused by the change of the sensing signal; the change in the capacitance value of the self-capacitance formed between the driving electrode and the reference ground only includes: the interference signal is loaded to the real touch position A change in the capacitance value of the self-capacitance caused on the drive electrode.
  • determining, according to the determined capacitance value change of the mutual capacitance and the self-capacitance capacitance value change, the false alarm point caused by the interference signal includes: passing the interference signal according to the interference signal a capacitance value change of the mutual capacitance caused by a change in the sensing signal of the sensing electrode caused by the ground interference loop to the ground and a self-capacitance capacitance value caused by the interference signal being loaded onto the driving electrode at the real touch position Change to determine the false positive point caused by the interference signal.
  • the false positive point is variable at different times, and/or the number of the false positive points is at least one at the same time.
  • the embodiment of the invention further provides a capacitive touch device, which comprises a driving electrode, a sensing electrode and a touch chip, wherein the touch chip is used for determining a capacitance value change of a mutual capacitance formed between the driving electrode and the sensing electrode, And a self-capacitance capacitance value change formed between the driving electrode and the reference ground; determining a false alarm point caused by the interference signal according to the determined capacitance value change of the mutual capacitance and the self-capacitance capacitance value change.
  • the embodiment of the invention further provides an electronic device comprising the capacitive touch device described in the above embodiments.
  • the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode, and the capacitance value of the self-capacitance formed between the driving electrode and the reference ground are changed; and according to the determined mutual capacitance
  • the change in the capacitance value and the change in the capacitance value of the self-capacitance determine the false alarm point caused by the interference signal, thereby realizing that the mutual-touch principle is applied to an electronic product such as a smart terminal, and the false alarm caused by the interference signal can be determined.
  • the real touch position can be accurately determined even if there is an interference signal during use.
  • FIG. 1 is a schematic flowchart of a method for determining a touch detection false alarm point according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for determining a touch detection false alarm point according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of an array of driving electrodes and sensing electrodes according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic diagram showing a variation of characteristic data reflecting a change in capacitance value of mutual capacitance during exemplary mutual capacitance sampling according to Embodiment 4 of the present invention
  • FIG. 5 is a schematic diagram showing a variation of characteristic data reflecting a change in self-capacitance capacitance value in an exemplary self-capacitance sampling according to Embodiment 5 of the present invention
  • FIG. 6 is a schematic structural diagram of a specific application of a capacitive touch device according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic diagram showing the hardware structure of an electronic device according to Embodiment 7 of the present invention.
  • the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode is determined, and the capacitance value of the self-capacitance formed between the driving electrode and the reference ground is changed;
  • the change of the capacitance value of the capacitor and the change of the capacitance value of the self-capacitance determine the false alarm point caused by the interference signal, thereby realizing that the mutual-capacitance touch principle can be determined by the interference signal when applied to an electronic product such as a smart terminal.
  • the false positive point further, the true touch position can be accurately determined even if there is an interference signal during use.
  • FIG. 1 is a schematic flowchart of a method for determining a touch detection false alarm point according to Embodiment 1 of the present invention; as shown in FIG. 1 , the method includes:
  • the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode is determined, and then the capacitance value change of the self-capacitance formed between the same driving electrode and the reference ground is determined; or In the same sampling period, firstly, the self-capacitance capacitance value formed between the driving electrode and the reference ground is determined, and the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode is determined. Further, in order to save sampling time or save power, in the same sampling period, the capacitance value change of the mutual capacitance between the driving electrode and all the sensing electrodes of the possible touch position on the touch array may be determined, and the driving of the touch may be determined. The capacitance value of the self-capacitance between the electrode and the reference ground changes.
  • the false alarm point and the corresponding sensing electrode at the real touch position are the same, so it is difficult to distinguish the false alarm point and the true touch by the self-capacitance between the sensing electrode and the reference ground.
  • the false alarm point is different from the corresponding driving electrode at the real touch position. Therefore, the false alarm point and the real touch position can be distinguished by the self-capacitance between the driving electrode and the reference ground. Therefore, the present implementation
  • the self-capacitance capacitance value formed between the driving electrode and the reference ground is selected to determine the false alarm point, instead of the self-capacitance formed between the sensing electrode and the reference ground. The change in capacitance value determines the false positive point.
  • the mutual capacitance formed between the driving electrode and the sensing electrode may be scanned by the sampling circuit to determine the mutual capacitance.
  • the current corresponding original feature data according to the scanned mutual compatibility, the current corresponding original feature data and the reference feature data corresponding to the mutual capacitance when there is no touch, thereby determining the capacitance of the mutual capacitance formed between the driving electrode and the sensing electrode.
  • a driving signal may be provided to the driving electrode through the driving circuit, and an sensing signal outputted by the sensing electrode may be detected by the sensing circuit.
  • the sensing signal is sampled by the sampling circuit, due to finger touch
  • the driving signal reflects the change of the mutual capacitance through the change of the sensing signal formed by the mutual coupling to the sensing electrode, thereby determining the mutual capacitance formed between the driving electrode and the sensing electrode according to the drivable signal and the acquired sensing signal.
  • the current corresponding raw feature data.
  • the specific driving circuit and the sensing circuit can adopt the existing circuits in the prior art, and details are not described herein again.
  • the self-capacity formed between the driving electrode and the reference ground may be specifically scanned by the sampling circuit to determine Determining the original feature data corresponding to the current, and determining the formed between the driving electrode and the reference ground according to the scanned original feature data and the reference feature data corresponding to the self-capacity when there is no touch.
  • Self-capacitance capacitance value changes.
  • a driving signal is supplied to the driving electrode through the driving circuit, and an output signal of the voltage dividing resistor connected to the self-capacitance is detected, and an output signal and driving of the voltage dividing resistor through the sampling circuit are detected.
  • the driving signal of the electrode is sampled.
  • the self-capacitance change is indirectly reflected on the output signal of the voltage dividing resistor, so that the self-capacitance is determined according to the collected driving signal and the output signal of the voltage dividing resistor.
  • Raw feature data For the sampling of the capacitance value change of the self-capacity, other methods in the prior art can also be referred to, and details are not described herein again.
  • step S102 when the false alarm point caused by the interference signal is determined according to the determined capacitance value change of the mutual capacitance and the self-capacitance capacitance value change, the capacitor according to the determined mutual capacitance may be specifically determined first.
  • the value change determines the touch position, and then the false alarm point caused by the interference signal in the touch position is determined according to the self-capacitance capacitance value change.
  • determining the false alarm point caused by the interference signal in the touch position according to the self-capacitance capacitance value change may include: changing the capacitance value of the mutual capacitance to be greater than or equal to the set mutual capacitance value Changing the threshold value and changing the self-capacitance capacitance value to less than the set self-capacity value change threshold is determined as a false alarm point caused by the interference signal, and changing the capacitance value of the mutual capacitance is greater than or equal to the set mutual capacitance
  • the value change threshold value and the self-capacitance capacitance value change is greater than or equal to the touch position of the set self-capacity change threshold value determined as the real touch position.
  • the change value of the mutual capacitance value change threshold and the self-capacity value change threshold may be determined according to the change of the capacitance value before and after the touch, and the mutual change value change threshold value and the self-capacity value change threshold value may be adjusted according to actual needs.
  • the capacitance change is converted into a difference between the reference feature data and the original feature data, that is, the feature data change, the mutual capacitance change threshold, and the self-capacity change threshold are converted into corresponding feature data changes. Threshold.
  • the difference between the reference feature data corresponding to the mutual capacitance and the self-capacity and the original feature data is compared with the corresponding mutual capacitance value change threshold value and the self-capacity value change threshold value, and the interference signal is determined as the interference signal.
  • the resulting false positive point is also the actual touch position.
  • the capacitance value of the mutual capacitance will become smaller when the touch is applied, and for the self-capacity, the capacitance value of the self-capacitance will become larger when the touch is applied.
  • the sampling process by the ADC circuit is replaced with the difference between the reference characteristic data and the original characteristic data.
  • the difference between the original feature data and the reference feature data may also be set, and details are not described herein again.
  • FIG. 2 is a schematic flowchart of a method for determining a touch detection false alarm point according to Embodiment 2 of the present invention; as shown in FIG. 2, the method includes:
  • S201 Determine, in different sampling periods, a change in capacitance value of a mutual capacitance formed between the driving electrode and the sensing electrode, and a capacitance value change between the driving electrode and the reference ground.
  • the capacitance value change of the mutual capacitance formed between the driving electrode and the sensing electrode is determined in the previous sampling period, and the same driving electrode and the reference ground are determined in the latter sampling period.
  • the capacitance value formed between the self-capacitance changes.
  • a self-capacitance capacitance value change formed between the driving electrode and the reference ground is determined in a previous sampling period, and the same between the driving electrode and the sensing electrode is determined in a subsequent sampling period.
  • the capacitance value of the formed mutual capacitance changes.
  • a capacitance value change of a mutual capacitance formed between a driving electrode and a sensing electrode is determined, and between the other driving electrode and the reference ground is determined in a subsequent sampling period.
  • the self-capacitance capacitance value formed is changed; or, in other embodiments, the self-capacitance capacitance value formed between the other driving electrode and the reference ground is determined in the previous sampling period, in the latter sampling period, A change in the capacitance value of the mutual capacitance formed between a driving electrode and the sensing electrode is determined.
  • S202 Determine a first touch position according to the determined change in the capacitance value of the mutual capacitance, and determine a second touch position according to the change in the capacitance value of the self-capacitance, and determine the first touch position according to the second touch position. False alarm points due to interference signals.
  • the reported touch position is determined by the capacitance value change of the mutual capacitance, and then the false alarm point is directly determined by the self-capacitance capacitance value change.
  • the first touch position and the second touch position are respectively determined according to the change of the capacitance value of the mutual capacitance and the change of the capacitance value of the self-capacity, and then according to the second touch
  • the intersection of the control position and the first touch position is used to determine a false positive point in the first touch position.
  • the touch position included in the first touch position and the second touch position may be determined as a real touch position, and only the first touch position includes the second touch
  • the touch position not included in the control position is determined as a false alarm point.
  • the capacitance value of the system to ground capacitance is relatively small, so that the interference signal such as the common mode interference signal cannot be in the system.
  • a loop is formed between the ground and the ground, so that the detected original value characteristic data of the corresponding mutual capacitance value changes has no change or little change with respect to the reference characteristic data; and when the finger touches, the system capacitance to the ground becomes large.
  • the mode interference signal will flow into the earth through the human body, thus forming an interference loop transmission. Therefore, the sensing signal of the sensing electrode changes with the change of the interference signal strength, and finally the capacitance value of the mutual capacitance is also interfered and changed. . .
  • the intensity of the interference signal may change rapidly with time at different times, so that the false alarm point may also be changed, and at the same time, A plurality of said false positive points occur at the same time.
  • FIG. 3 is a schematic diagram of an array of driving electrodes and sensing electrodes according to Embodiment 3 of the present invention; as shown in FIG. 3, taking the sensing electrodes and the driving electrodes as strips as an example, the sensing electrodes are arranged laterally, the driving electrodes are arranged longitudinally, and the sensing electrodes are arranged. A mutual capacitance is formed at an overlapping node of the driving electrode, and the driving electrode forms a self-contained with a reference ground (not shown).
  • the number N of the sensing electrodes is 6, and the corresponding sensing electrodes are as shown by S0-S5 in FIG. 3, and the number M of driving electrodes is 8, and the corresponding driving electrodes are as shown in the figure D0-D7, fingers.
  • the position of the touch is located at the sensing electrode S2, the sensing electrode S3, the driving electrode D6, and the driving electrode D7. Therefore, in the application of the first or second embodiment of the foregoing embodiment, for mutual capacitance, as described above, the sensing signal on the sensing electrode S2 and the sensing electrode S3 is interfered due to the presence of the ground interference loop. The influence of the signal, so that the capacitance value of the mutual capacitance formed by the detected sensing electrode S2 and the sensing electrode S3 and the driving electrode, that is, D0-D7, respectively, is also affected by the interference signal.
  • the interference signal is loaded to the driving electrode D6 and the driving electrode D7, so that the driving electrode D6 and the driving electrode D7 are respectively formed with the ground.
  • the change in capacitance value is affected by the interference signal. From the sampling of the original feature data, for the mutual capacitive situation, a total of N*M or 48 original feature data are collected, wherein 16 original feature data may correspond to the touch position; A total of 14 original feature data is collected, and only 4 of the original feature data may correspond to the touch position, so that the capacitance value of the mutual capacitance determined according to the solution in the above embodiment is The change in capacitance value determines the false alarm point due to the interference signal.
  • FIG. 4 is a schematic diagram showing a variation of characteristic data reflecting a change in capacitance value of a mutual capacitance in an exemplary mutual capacitance sampling according to Embodiment 4 of the present invention; in order to explain the above-described Embodiment 1 and Embodiment 2 more clearly, an increase is made.
  • the plurality of driving electrodes correspondingly increase the number of original feature data.
  • the amount of change of the feature data calculated according to the original feature data sampled at a certain time, as shown in FIG. 4, is taken from the part.
  • the amount of change in the characteristic data is explained in an explanatory manner, and the amount of change in the characteristic data corresponding to the change in the capacitance value of the capacitance between the five sensing electrodes and the twenty driving electrodes is specifically intercepted.
  • the feature data change threshold is 50
  • the touch position is initially determined as long as the characteristic data change corresponding to the change of the mutual capacitance value is greater than 50.
  • FIG. 4 has three. Possible touch positions L1-L3 correspond to drive electrodes D1-D3, D13-D14, D17-D19, respectively, including false positive points due to interfering signals.
  • FIG. 5 is a specific schematic diagram of the variation of the characteristic data reflecting the change of the self-capacitance capacitance value in the exemplary self-capacitance sampling according to the fifth embodiment of the present invention, and corresponding to the above FIG. 4, in the case of self-capacitance sampling, the threshold value of the feature number data is assumed to be 70, as long as the change of the characteristic data corresponding to the change of the self-capacitance capacitance value is greater than 70, the touch position can be determined. As can be seen from FIG. 5, only the drive electrodes D1-D3 (corresponding to the touch position L1 in the case of mutual capacitance) can be seen and driven.
  • the characteristic data corresponding to the electrodes D17-D19 varies by more than 70, so that the above-mentioned driving electrodes D1-D3 can be determined (corresponding The touch position L1) and the drive electrodes D17-D19 (corresponding to the touch position L3 in the case of mutual capacitance) of the mutual capacitance are the real touch positions, and the touch position L2 of the drive electrodes D13-D14 is the false alarm point.
  • FIG. 4 to FIG. 5 are described by taking a strip-shaped electrode as a whole, but for each of the strip electrodes, one or more triangular electrodes or one or more rhombic electrodes may be used. Instead, the details will not be described again.
  • FIG. 6 is a schematic structural diagram of a specific application of a capacitive touch device according to Embodiment 6 of the present invention; as shown in FIG. 6, the driving electrode 601, the sensing electrode 602, the touch chip 603, the driving circuit 604, the sensing circuit 605, and the like
  • the multiplexer 606 is configured to provide a driving signal to the driving electrode 601, the sensing circuit 605 is configured to receive an output signal of the sensing electrode 602, and the multiplexer 606 is configured to multiplex the plurality of driving electrodes 601 with the same driving
  • the circuit 604 or the same sensing circuit 605 is used to determine the capacitance value change of the mutual capacitance formed between the driving electrode 601 and the sensing electrode 602, and the self-capacity formed between the driving electrode 601 and the reference ground.
  • the change in the capacitance value determines the false alarm point caused by the interference signal according to the determined change in the capacitance value of the mutual capacitance and the change in the capacitance value of the self-capacit
  • the embodiment of the present invention further provides an electronic device, which includes the capacitive touch device described in any of the above embodiments, and details are not described herein again.
  • FIG. 7 is a schematic diagram showing the hardware structure of an electronic device according to Embodiment 7 of the present invention.
  • the device includes: one or more processors 710 and a memory 720, and one processor 710 is taken as an example in FIG.
  • the electronic device may also include an input device 730 and an output device 740.
  • the processor 710, the memory 720, the input device 730, and the output device 740 may be connected by a bus or other means, as exemplified by a bus connection in FIG.
  • the memory 720 is a non-volatile computer readable storage medium, and can be used for storing non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application. .
  • the processor 710 runs the nonvolatile memory stored in the memory 720 The software program, the instructions, and the modules, thereby performing various functional applications of the server and data processing, that is, implementing the above method embodiments.
  • the memory 720 can include 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.
  • memory 720 can include high speed random access memory 720, and can also include non-volatile memory 720, such as at least one disk storage 720, flash memory device, or other non-volatile solid state memory 720 device.
  • memory 720 can optionally include memory 720 remotely located relative to processor 710, which can be connected to the electronic product over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Input device 730 can receive input numeric or character information and generate key signal inputs related to user settings and function controls.
  • the input device 730 can include the above capacitive touch device.
  • the one or more modules are stored in the memory 720, and when executed by the one or more processors 710, perform any of the method embodiments described above.
  • the electronic device of the embodiment of the present application exists in various forms, including but not limited to:
  • Mobile communication devices These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication.
  • Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.
  • Ultra-mobile personal computer equipment This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access.
  • Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.
  • Portable entertainment devices These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.
  • the server consists of a processor 710, a hard disk, a memory, a system bus, etc.
  • the server is similar to a general-purpose computer architecture, but is capable of processing and is stable due to the need to provide highly reliable services. Sex, reliability, security, scalability, manageability, etc. are highly demanding.
  • the device embodiments described above are merely illustrative, wherein the modules described as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules, ie may be located A place, or it can be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.
  • a machine-readable medium includes read only memory (ROM), random access memory (RAM), magnetic disk storage media, optical storage media, flash storage media, electrical, optical, acoustic, or other forms of propagation signals (eg, carrier waves) , an infrared signal, a digital signal, etc., etc., the computer software product comprising instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the various embodiments or portions of the embodiments described Methods.
  • ROM read only memory
  • RAM random access memory
  • magnetic disk storage media e.g., magnetic disks, magnetic disk storage media, optical storage media, flash storage media, electrical, optical, acoustic, or other forms of propagation signals (eg, carrier waves) , an infrared signal, a digital signal, etc., etc.
  • the computer software product comprising instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the various embodiments or portions of the embodiment
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种触控检测误报点的确定方法、电容触控装置及电子装置，方法包括：确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化（S101）；根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点（S102）。实现了将互容触控原理在智能终端等电子产品上应用时，在使用的过程中即使有干扰信号的存在也可准确地确定真实触摸位置。

Description

触控检测误报点的确定方法、电容触控装置及电子装置 技术领域
本发明实施例涉及触控技术领域，尤其涉及一种触控检测误报点的确定方法、电容触控装置及电子装置。
背景技术
触控控制如应用在电子产品如智能终端上，可以让使用者只要通过手势操作即可实现终端的操作，摆脱了传统的机械键盘，使人机交互更为直截了当。
由于可以直接基于人体对电场的影响实现触控控制，因此，电容触控技术成为目前在电子产品上实现触控控制的主要手段之一。而在电容触控技术中，部分是基于互容触控原理，部分是基于自容触控原理。具体地，以互容触控原理为例，触控的原理可简要概括为：驱动电极和感应电极之间形成互电容，当有手指触摸时，会影响触摸点附近互电容，从而改变了互电容的电容值，通过检测该电容值的变化确定触摸点的坐标从而确定触摸位置。
但是，上述互容触控原理在智能终端等电子产品上应用时，在使用的过程中，往往会引入干扰信号，比如在电子产品充电的过程中常用的充电器采用开关电源供电从而引入的共模干扰信号，会导致误报点的出现，即在实际没有触摸的位置检测到有触摸坐标。
发明内容
本发明实施例的目的在于提供一种触控检测误报点的确定方法、电容触控装置及电子装置，用以至少解决现有技术中的上述问题。
为实现本发明实施例的目的，本发明实施例提供了一种触控检测误报点的确定方法，其包括：
确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动 电极与参考地之间形成的自容的电容值变化；
根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点。
可选地，在本发明的任一实施例中，确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化包括：
在同一采样周期内确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；或者，
在不同采样周期内分别确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化。
可选地，在本发明的任一实施例中，所述确定驱动电极和感应电极之间形成的互容的电容值变化包括:扫描驱动电极和感应电极之间形成的互容以确定所述互容在当前对应的原始特征数据，根据扫描到的互容在当前对应的原始特征数据与互容在无触控时对应的基准特征数据，确定驱动电极和感应电极之间形成的互容的电容值变化。
可选地，在本发明的任一实施例中，确定所述驱动电极与参考地之间形成的自容的电容值变化包括：
扫描所述驱动电极与参考地之间形成的自容以确定所述自容在当前对应的原始特征数据，根据扫描到的自容在当前对应的原始特征数据与自容在无触控时对应的基准特征数据，确定所述驱动电极与参考地之间形成的自容的电容值变化。
可选地，在本发明的任一实施例中，根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点包括：
根据确定的互容的电容值变化确定触控位置，再根据所述自容的电容值变化确定触控位置中因干扰信号导致的误报点。
可选地，在本发明的任一实施例中，根据所述自容的电容值变化确定触 控位置中因干扰信号导致的误报点包括：
将所述互容的电容值变化大于或等于设定互容值变化阈值而所述自容的电容值变化小于设定自容值变化阈值的触控位置判定为因干扰信号导致的误报点。
可选地，在本发明的任一实施例中，根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点包括：
根据确定的互容的电容值变化确定第一触控位置，再根据所述自容的电容值变化确定第二触控位置，根据所述第二触控位置确定第一触控位置中因干扰信号导致的误报点。
可选地，在本发明的任一实施例中，根据所述第二触控位置确定第一触控位置中因干扰信号导致的误报点包括：
将所述第一触控位置与所述第二触控位置中均包括的触控位置确定为真实触控位置，而仅有所述第一触控位置包括而所述第二触控位置不包括的触摸位置确定为因干扰信号导致的误报点。
可选地，在本发明的任一实施例中，所述驱动电极和感应电极之间形成的互容的电容值变化包括：所述干扰信号可经过对地干扰回路传输到大地引起的感应电极的感应信号发生变化而导致的互容的电容值变化；；所述驱动电极与参考地之间形成的自容的电容值变化仅包括：所述干扰信号会加载到所述真实触摸位置处的驱动电极上导致的自容的电容值变化。
可选地，在本发明的任一实施例中，根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点包括：根据所述干扰信号可经过对地干扰回路传输到大地引起的感应电极的感应信号发生变化而导致的互容的电容值变化以及所述干扰信号会加载到所述真实触摸位置处的驱动电极上导致的自容的电容值变化，确定因干扰信号导致的误报点。
可选地，在本发明的任一实施例中，在不同时刻所述误报点可变，和/或，在同一时刻所述误报点的数量至少为一个。
本发明实施例还提供了一种电容触控装置，其包括驱动电极、感应电极以及触控芯片，所述触控芯片用于确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点。
本发明实施例还提供了一种电子装置，其包括上述实施例中所述的电容触控装置。
本发明实施例中，通过确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；再根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点，从而实现了将互容触控原理在智能终端等电子产品上应用时，可确定因干扰信号导致的误报点，进一步地在使用的过程中即使有干扰信号的存在也可准确地确定真实触摸位置。
附图说明
图1为本发明实施例一中触控检测误报点的确定方法流程示意图；
图2为本发明实施例二中触控检测误报点的确定方法流程示意图；
图3为本发明实施例三中驱动电极和感应电极的阵列示意图；
图4为本发明实施例四中示例性互容采样时反映互容的电容值变化的特征数据变化量一具体示意图；
图5为本发明实施例五中示例性自容采样时下反映自容电容值变化的特征数据变化量的一具体示意图；
图6为本发明实施例六中电容触控装置的具体应用结构示意图；
图7是本发明实施例七中电子装置的硬件结构示意图。
具体实施方式
以下将配合图式及实施例来详细说明本申请的实施方式，藉此对本申请 如何应用技术手段来解决技术问题并达成技术功效的实现过程能充分理解并据以实施。
本发明下述实施例中，通过确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；再根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点，从而实现了将互容触控原理在智能终端等电子产品上应用时，可确定出因干扰信号导致的误报点，进一步地，在使用的过程中即使有干扰信号的存在也可准确地确定真实触摸位置。
图1为本发明实施例一中触控检测误报点的确定方法流程示意图；如图1所示，其包括：
S101、在同一采样周期内确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；
本实施例中，在同一采样周期内，首先确定完驱动电极和感应电极之间形成的互容的电容值变化，再确定相同驱动电极与参考地之间形成的自容的电容值变化；或者，在同一采样周期内，首先确定驱动电极与参考地之间形成的自容的电容值变化，确定完驱动电极和感应电极之间形成的互容的电容值变化。进一步地，为了节省采样时间或者省电，可在同一采样周期内，确定完触控阵列上可能触控位置的驱动电极与所有感应电极之间互容的电容值变化，以及可能触控的驱动电极与参考地之间自容的电容值变化。
另外，需要说明的是，由于有触控发生时，误报点和真实触控位置处对应的感应电极相同，因此，难以通过感应电极与参考地之间自容区别出误报点和真实触控位置。而对于驱动电极来说，误报点和真实触控位置处对应的驱动电极不同，因此，通过驱动电极与参考地之间自容可区别出误报点和真实触控位置，因此，本实施例中，选择驱动电极与参考地之间形成的自容的电容值变化来确定误报点，而不是通过感应电极与参考地之间形成的自容的 电容值变化来确定误报点。
本实施例，步骤S101中在所述确定驱动电极和感应电极之间形成的互容的电容值变化时，可以通过采样电路扫描驱动电极和感应电极之间形成的互容以确定所述互容在当前对应的原始特征数据，根据扫描到的互容在当前对应的原始特征数据与互容在无触控时对应的基准特征数据，从而确定驱动电极和感应电极之间形成的互容的电容值变化，具体的采样电路的结构可参见现有技术已有的电路，在此不再赘述。
本实施例中，在具体实施时，可以通过驱动电路给驱动电极提供驱动信号，而通过感应电路检测感应电极输出的感应信号，为此，在通过采样电路采样所述感应信号，由于有手指触控时，驱动信号会通过互容耦合到感应电极上形成的感应信号发生变化来反映互容的变化，从而根据可驱动信号和采集的感应信号确定驱动电极和感应电极之间形成的互容在当前对应的原始特征数据。具体的驱动电路和感应电路可以采用现有技术已有的电路，在此不再赘述。
本实施例中，步骤S101中确定所述驱动电极与参考地之间形成的自容的电容值变化时，具体可以通过采样电路扫描所述驱动电极与参考地之间形成的自容以确定所述自容在当前对应的原始特征数据，根据扫描到的自容在当前对应的原始特征数据与自容在无触控时对应的基准特征数据，确定所述驱动电极与参考地之间形成的自容的电容值变化。
本实施例中，在具体实施时，通过驱动电路给驱动电极提供驱动信号，而检测与所述自容连接的分压电阻的输出信号，通过采样电路对所述分压电阻的输出信号和驱动电极的驱动信号进行采样，由于有手指触控时，自容的变化会间接反映到分压电阻的输出信号上，从而根据采集的驱动信号和分压电阻的输出信号确定出自容在当前对应的原始特征数据。关于自容的电容值变化采样还可以参照现有技术中的其他方式，在此不再赘述。
S102、根据确定的互容的电容值变化和所述自容的电容值变化确定因干 扰信号导致的误报点。
本实施例中，在步骤S102中，在根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点时，可以具体首先根据确定的互容的电容值变化确定触控位置，再根据所述自容的电容值变化确定触控位置中因干扰信号导致的误报点。
具体地，本实施例中，根据所述自容的电容值变化确定触控位置中因干扰信号导致的误报点可以包括：将所述互容的电容值变化大于或等于设定互容值变化阈值而所述自容的电容值变化小于设定自容值变化阈值的触控位置判定为因干扰信号导致的误报点，将所述互容的电容值变化大于或者等于设定互容值变化阈值而所述自容的电容值变化大于或等于设定自容值变化阈值的触控位置确定为真实触控位置。
上述互容值变化阈值和自容值变化阈值可以根据有触控前后电容值的变化来确定，互容值变化阈值和自容值变化阈值的大小可以根据实际需要进行调整。在具体实施时，可以参照上述实施例，将电容变化转换为上述基准特征数据与原始特征数据的差值即特征数据变化，互容值变化阈值、自容值变化阈值转换为对应的特征数据变化阈值。因此，通过所述互容、所述自容各自对应的基准特征数据与原始特征数据之间的差值与对应的互容值变化阈值、自容值变化阈值进行比对，判断是因干扰信号导致的误报点还是真实触控位置。
另外，对于互容来说，有触控时互容的电容值会变小，而对于自容来说，有触控时自容的电容值会变大。但是，对于互容还是自容来说，由于可将电容值的变换转换成感应信号或者分压电阻输出信号的变化，再通过ADC电路进行采样处理换成基准特征数据与原始特征数据的差值，但是，需要说明的是，在其他实施例中，也可以设置成原始特征数据与基准特征数据差值，详细不再赘述。因此在本实施例中，为了可以使用统一的判断规则来判断是否触摸，无论对于互容还是自容，均设置成只要基准特征数据与原始特征数据 的差值即特征数据的变化(等效为电容的变化)大于对应的阈值则判定对应的触控位置为真实触控位置。
图2为本发明实施例二中触控检测误报点的确定方法流程示意图；如图2所示，其包括：
S201、在不同采样周期内分别确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化。
与上述实施例不同的是，本实施例中，在前一采样周期内确定驱动电极和感应电极之间形成的互容的电容值变化，在后一采样周期确定同一所述驱动电极与参考地之间形成的自容的电容值变化。
或者，在另外一实施例中，在前一采样周期确定所述驱动电极与参考地之间形成的自容的电容值变化，在后一采样周期内确定同一所述驱动电极和感应电极之间形成的互容的电容值变化。
或者，在其他实施例中，在前一采样周期内，确定一驱动电极和感应电极之间形成的互容的电容值变化，在后一采样周期内，确定另一驱动电极与参考地之间形成的自容的电容值变化；或者，在其他实施例中，在前一采样周期内，确定另一驱动电极与参考地之间形成的自容的电容值变化，在后一采样周期内，确定一驱动电极和感应电极之间形成的互容的电容值变化。
S202、根据确定的互容的电容值变化确定第一触控位置，再根据所述自容的电容值变化确定第二触控位置，根据所述第二触控位置确定第一触控位置中因干扰信号导致的误报点。
本实施例中，与上述实施例图1实施例中，是通过互容的电容值变化确定出上报的触控位置，然后用自容的电容值变化直接去确定其中的误报点。而本实施例中，与上述实施例不同的是，分别根据互容的电容值变化和自容的电容值变化确定出第一触控位置、第二触控位置，然后根据所述第二触控位置和第一触控位置的交集，去确定第一触控位置中的误报点。其具体过程 可以为：将所述第一触控位置与所述第二触控位置中均包括的触控位置确定为真实触控位置，而仅有所述第一触控位置包括而所述第二触控位置不包括的触摸位置确定为误报点。
本实施例或上述图1实施例中，对于所述互容来说，当没有手指触控时，系统对地电容的电容值比较小，从而使得干扰信号如所述共模干扰信号无法在系统地与大地之间形成回路，使得检测的对应互容电容值变化的原始值特征数据相对于基准特征数据没有变化或者变化很小；而当有手指触控时，系统对地电容自容变大，此时工模干扰信号会通过人体流入到大地，从而形成了干扰回路传输所以感应电极的感应信号随着干扰信号强度的变化而变化，最终导致互容的电容值也会受到干扰而发生变化。。
另外，在上述图1或者图2所示实施例中，考虑到在不同时刻，干扰信号的强度可能随着时间快速变化，从而导致所述误报点也会发生可变，同时，还可能会在同一时刻出现多个所述误报点。
图3为本发明实施例三中驱动电极和感应电极的阵列示意图；如图3所示，以感应电极和驱动电极为条状为例，感应电极横向排布，驱动电极纵向排布，感应电极和驱动电极的重叠节点处形成互容，驱动电极与参考地(图中未示出)形成自容。其中，示例性地，感应电极的数量N如为6，对应的感应电极如图3上S0-S5所示，驱动电极的数量M如为8，对应的驱动电极如图上D0-D7，手指触控的位置位于感应电极S2、感应电极S3、驱动电极D6、驱动电极D7。为此，在应用上述实施例一或二的技术方案是，对于互容来说，如前所述，由于对地干扰回路的存在，使得感应电极S2、感应电极S3上的感应信号受到了干扰信号的影响，从而使得检测出的感应电极S2、感应电极S3分别与驱动电极即D0-D7形成的互容的电容值变化也会受到干扰信号的影响， 从而出现误报点；而对于自容的电容值变化来说，如前所述，干扰信号会加载到驱动电极D6、驱动电极D7，使得驱动电极D6、驱动电极D7分别与地形成的自容的电容值变化均受到干扰信号的影响。从采样得到的原始特征数据量上来看，对于互容情形，总共采集到N*M即48个原始特征数据，其中，有16个原始特征数据可能对应有触控位置；而对于自容情形来看，总共采集到N+M即14个原始特征数据，其中仅有4个原始特征数据可能对应有触控位置，从而根据上述实施例中的方案确定出的互容的电容值的变化以及自容的电容值变化确定因干扰信号导致的误报点。
图4为本发明实施例四中示例性互容采样时反映互容的电容值变化的特征数据变化量一具体示意图；为了对上述实施例一和实施例二解释的更为清楚，增加了更多的驱动电极从而对应地增加了更多的原始特征数据的数量，本实施例中，根据某一时刻采样到的原始特征数据计算的特征数据变化量，如图4所示，从中截取了部分特征数据变化量来进行解释性说明，具体截取了5条感应电极与21条驱动电极之间形成电容的电容值变化对应的特征数据变化量。示例性地对于互容采样情形，特征数据变化阈值为50，只要对应互容电容值变化的特征数据变化大于50就初步判定为触摸位置，为此，参见图4，图4所示有3个可能的触摸位置L1-L3，分别对应到驱动电极D1-D3、D13-D14、D17-D19，其中包括由于干扰信号导致的误报点。
图5为本发明实施例五中示例性自容采样时下反映自容电容值变化的特征数据变化量的一具体示意图，对应上述图4，对于自容采样的情形，特征数数据变化阈值假如为70，只要对应自容电容值变化的特征数据变化大于70可判定为触摸位置，从图5可看出，只有对应到驱动电极D1-D3(可对应互容情形下的触摸位置L1)、驱动电极D17-D19(可对应互容情形下的触摸位置L3)对应的特征数据变化大于70，因此即可确定出上述驱动电极D1-D3(可对应 互容情形下的触摸位置L1)、驱动电极D17-D19(对应互容情形下的触摸位置L3)为真实触控位置，而驱动电极D13-D14出的触控位置L2为误报点。
需要说明的是，上述图4-图5以整条状的条状电极为例进行说明，但是，对于也上述每一个条状电极也可以一个或多个三角形电极、或者一个或多个菱形电极代替，详细不再赘述。
图6为本发明实施例六中电容触控装置的具体应用结构示意图；如图6所示，其包括：驱动电极601、感应电极602、触控芯片603、驱动电路604、感应电路605、多路复用器606，驱动电路604用于向驱动电极601提供驱动信号，感应电路605用于接收感应电极602的输出信号，多路复用器606用于使得多个驱动电极601复用同一驱动电路604或者同一感应电路605，所述触控芯片603用于确定驱动电极601和感应电极602之间形成的互容的电容值变化，以及所述驱动电极601与参考地之间形成的自容的电容值变化；根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点。
本发明实施例还提供了一种电子装置，其包括上述任一实施例中所述的电容触控装置，详细不再赘述。
图7是本发明实施例七中电子装置的硬件结构示意图。根据图7所示，该设备包括：一个或多个处理器710以及存储器720，图7中以一个处理器710为例。电子装置还可以包括：输入装置730和输出装置740。
处理器710、存储器720、输入装置730和输出装置740可以通过总线或者其他方式连接，图7中以通过总线连接为例。
存储器720作为一种非易失性计算机可读存储介质，可用于存储非易失性软件程序、非易失性计算机可执行程序以及模块，如本申请实施例中的方法对应的程序指令/模块。处理器710通过运行存储在存储器720中的非易失 性软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例。
存储器720可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序。此外，存储器720可以包括高速随机存取存储器720，还可以包括非易失性存储器720，例如至少一个磁盘存储器720件、闪存器件、或其他非易失性固态存储器720件。在一些实施例中，存储器720可选包括相对于处理器710远程设置的存储器720，这些远程存储器720可以通过网络连接至电子产品。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置730可接收输入的数字或字符信息，以及产生与用户设置以及功能控制有关的键信号输入。输入装置730可包括上述电容触控装置。
所述一个或者多个模块存储在所述存储器720中，当被所述一个或者多个处理器710执行时，执行上述任意方法实施例。
上述产品可执行本申请实施例所提供的方法，具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本申请实施例所提供的方法。
本申请实施例的电子设备以多种形式存在，包括但不限于:
(1)移动通信设备:这类设备的特点是具备移动通信功能，并且以提供话音、数据通信为主要目标。这类终端包括:智能手机(例如iPhone)、多媒体手机、功能性手机，以及低端手机等。
(2)超移动个人计算机设备:这类设备属于个人计算机的范畴，有计算和处理功能，一般也具备移动上网特性。这类终端包括:PDA、MID和UMPC设备等，例如iPad。
(3)便携式娱乐设备:这类设备可以显示和播放多媒体内容。该类设备包括:音频、视频播放器(例如iPod)，掌上游戏机，电子书，以及智能玩具和便携式车载导航设备。
(4)服务器:提供计算服务的设备，服务器的构成包括处理器710、硬盘、内存、系统总线等，服务器和通用的计算机架构类似，但是由于需要提供高可靠的服务，因此在处理能力、稳定性、可靠性、安全性、可扩展性、可管理性等方面要求较高。
(5)其他具有数据交互功能的电子装置。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，所述计算机可读记录介质包括用于以计算机(例如计算机)可读的形式存储或传送信息的任何机制。例如，机器可读介质包括只读存储器(ROM)、随机存取存储器(RAM)、磁盘存储介质、光存储介质、闪速存储介质、电、光、声或其他形式的传播信号(例如，载波、红外信号、数字信号等)等，该计算机软件产品包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
本申请是参照根据本申请实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式 处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (13)

  1. 一种触控检测误报点的确定方法，其特征在于，包括：
    确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；
    根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点。
  2. 根据权利要求1所述的方法，其特征在于，确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化包括：
    在同一采样周期内确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化；或者，
    在不同采样周期内分别确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化。
  3. 根据权利要求1所述的方法，其特征在于，所述确定驱动电极和感应电极之间形成的互容的电容值变化包括:扫描驱动电极和感应电极之间形成的互容以确定所述互容在当前对应的原始特征数据，根据扫描到的互容在当前对应的原始特征数据与互容在无触控时对应的基准特征数据，确定驱动电极和感应电极之间形成的互容的电容值变化。
  4. 根据权利要求1所述的方法，其特征在于，确定所述驱动电极与参考地之间形成的自容的电容值变化包括：
    扫描所述驱动电极与参考地之间形成的自容以确定所述自容在当前对应的原始特征数据，根据扫描到的自容在当前对应的原始特征数据与自容在无触控时对应的基准特征数据，确定所述驱动电极与参考地之间形成的自容的电容值变化。
  5. 权利要求1-4任一项所述的方法，其特征在于，根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点包括：
    根据确定的互容的电容值变化确定触控位置，再根据所述自容的电容值变化确定触控位置中因干扰信号导致的误报点。
  6. 根据权利要求5所述的方法，其特征在于，根据所述自容的电容值变化确定触控位置中因干扰信号导致的误报点包括：
    将所述互容的电容值变化大于或等于设定互容值变化阈值而所述自容的电容值变化小于设定自容值变化阈值的触控位置判定为因干扰信号导致的误报点。
  7. 权利要求1-4任一项所述的方法，其特征在于，根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点包括：
    根据确定的互容的电容值变化确定第一触控位置，再根据所述自容的电容值变化确定第二触控位置，根据所述第二触控位置确定第一触控位置中因干扰信号导致的误报点。
  8. 根据权利要求7所述的方法，其特征在于，根据所述第二触控位置确定第一触控位置中因干扰信号导致的误报点包括：
    将所述第一触控位置与所述第二触控位置中均包括的触控位置确定为真实触控位置，而仅有所述第一触控位置包括而所述第二触控位置不包括的触摸位置确定为因干扰信号导致的误报点。
  9. 根据权利要求1所述的方法，其特征在于，所述驱动电极和感应电极之间形成的互容的电容值变化包括：所述干扰信号可经过对地干扰回路传输到大地引起的感应电极的感应信号发生变化而导致的互容的电容值变化；所述驱动电极与参考地之间形成的自容的电容值变化仅包括：所述干扰信号会加载到所述真实触摸位置处的驱动电极上导致的自容的电容值变化。
  10. 根据权利要求9所述的方法，其特征在于，根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点包括：根据所述干扰信号可经过对地干扰回路传输到大地引起的感应电极的感应信号发生变化而导致的互容的电容值变化以及所述干扰信号会加载到所述真实触摸位 置处的驱动电极上导致的自容的电容值变化，确定因干扰信号导致的误报点。
  11. 根据权利要求1所述的方法，其特征在于，在不同时刻所述误报点可变，和/或，在同一时刻所述误报点的数量至少为一个。
  12. 一种电容触控装置，其特征在于，包括驱动电极、感应电极以及触控芯片，所述触控芯片用于确定驱动电极和感应电极之间形成的互容的电容值变化，以及所述驱动电极与参考地之间形成的自容的电容值变化，并根据确定的互容的电容值变化和所述自容的电容值变化确定因干扰信号导致的误报点。
  13. 一种电子装置，其特征在于，包括权利要求12所述的电容触控装置。
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CN110069170B (zh) * 2019-05-13 2022-03-25 京东方科技集团股份有限公司 触摸屏报点率处理方法、装置、电子设备及可读存储介质
CN110928443B (zh) * 2019-10-31 2024-01-12 维沃移动通信有限公司 一种触控位置的检测方法及电子设备
CN113983223B (zh) * 2020-07-27 2023-07-21 云米互联科技(广东)有限公司 触摸式水龙头
CN113253878B (zh) * 2021-06-25 2021-11-02 深圳小米通讯技术有限公司 触摸屏的报点确定方法、装置、电子设备及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090284495A1 (en) * 2008-05-14 2009-11-19 3M Innovative Properties Company Systems and methods for assessing locations of multiple touch inputs
CN103076939A (zh) * 2013-02-05 2013-05-01 旭曜科技股份有限公司 利用自电容与互电容感应交替扫瞄以去除触控噪声的方法
CN103197787A (zh) * 2012-01-09 2013-07-10 义隆电子股份有限公司 触控面板的噪声排除方法
CN103995626A (zh) * 2013-02-19 2014-08-20 比亚迪股份有限公司 一种用于触摸屏的触摸点定位方法及装置
CN103995627A (zh) * 2013-02-19 2014-08-20 比亚迪股份有限公司 一种电容触摸屏的检测方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090284495A1 (en) * 2008-05-14 2009-11-19 3M Innovative Properties Company Systems and methods for assessing locations of multiple touch inputs
CN103197787A (zh) * 2012-01-09 2013-07-10 义隆电子股份有限公司 触控面板的噪声排除方法
CN103076939A (zh) * 2013-02-05 2013-05-01 旭曜科技股份有限公司 利用自电容与互电容感应交替扫瞄以去除触控噪声的方法
CN103995626A (zh) * 2013-02-19 2014-08-20 比亚迪股份有限公司 一种用于触摸屏的触摸点定位方法及装置
CN103995627A (zh) * 2013-02-19 2014-08-20 比亚迪股份有限公司 一种电容触摸屏的检测方法及装置

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