TWI889275B - Method for improving report rate, touch chip and electronic device - Google Patents

Abstract

This application provides a method for improving a report rate, a touch chip and an electronic device. The method is applied to a touch device and includes: controlling n columns of touch drive electrodes to continuously emit signals; controlling m rows of touch sensing electrodes to continuously sense the signals, mixing and processing each of the signals to obtain m-line detection signals; outputting the-1 frame coordinate information based on the m-line detection signals at; outputting theframe coordinate information based on the m-line detection signals at; and determining a touch operation according to theframe coordinate information and the

Description

Method for improving reporting rate, touch chip and electronic device

This application involves the field of touch control technology, specifically a method for improving the reporting rate, a touch control chip and an electronic device.

At present, most electronic products on the market use touch screens to implement human-computer interaction functions, especially various electronic terminal products, such as mobile phones, tablet computers, notebooks, and e-books. Most of them use capacitive touch screens for human-computer interaction. In recent years, the most widely used touch principle is the capacitive touch principle. That is, when a person's finger is placed on the touch area of an electronic terminal product, the touch area close to the finger will change in capacitance, and the finger's touch position is determined by detecting the position where the capacitance value changes.

With the development of technology, touch technology has been widely used in various fields, from consumer electronics to industrial control, and even future smart homes. Then the high display refresh rate, high touch reporting rate and high-quality picture of the touch screen can better meet the needs of consumers. However, the reporting rate of existing touch display devices is low, and the improvement of the reporting rate is limited.

2，m

2，所述方法包括：控制所述第一信號通道通過對應的所述n列觸控驅動電極持續發射連續信號；控制所述第二信號通道通過對應的m行觸控感應電極感測n個連續信號，對感測到的所述n個連續信號中的每個連續信號進行混頻和處理計算得到m行檢測信號，其中，控制進行處理計算的所述n個連續信號中的每個連續信號的預設時長為連續信號的週期的正整數倍，所述m行檢測信號中的每行檢測信號包括n個檢測信號；基於T _a +(l-1)×△t時刻的所述m行檢測信號生成對應的原始資料矩陣及根據所述原始資料矩陣輸出第l-1幀座標點位元資訊，其中，所述原始資料矩陣包括m行和n列原始資料，l為大於或等於1的正整數，△t為間隔時長；基於T _a +l×△t時刻的所述m行檢測信號生成對應的原始資料矩陣及根據所述原始資料矩陣輸出第l幀座標點位元資訊；基於所述第l幀座標點位元資訊和所述第l-1幀座標點位元資訊判斷觸控操作；以及基於所述間隔時長△t輸出上報所述觸控位置的報點率b，其中，b=1/△t。 In view of this, the present application provides a method for improving the reporting rate, a touch chip and an electronic device for controlling the reporting rate of a touch device. The technical solution of the present application is as follows: In a first aspect, the present application provides a method for improving the reporting rate, which is applied to a touch device, wherein the touch device comprises n columns of touch drive electrodes and m rows of touch sensing electrodes orthogonal to the n columns of touch drive electrodes, wherein each column of touch drive electrodes forms a first signal channel, each row of touch sensing electrodes forms a second signal channel, and n columns of touch drive electrodes form a second signal channel.

2, m

2. The method comprises: controlling the first signal channel to continuously transmit continuous signals through the corresponding n columns of touch driving electrodes; controlling the second signal channel to sense n continuous signals through the corresponding m rows of touch sensing electrodes, mixing and processing each of the sensed n continuous signals to obtain m rows of detection signals, wherein the preset duration of each of the n continuous signals to be processed and calculated is controlled to be a positive integer multiple of the period of the continuous signal, and each row of the m rows of detection signals includes n detection signals; generating a corresponding _raw data matrix based on the m rows of detection signals at time Ta +( l -1)×△ t and outputting the lth detection signal according to the raw data matrix. -1 frame coordinate point bit information, wherein the original data matrix includes m rows and n columns of original data, l is a positive integer greater than or equal to 1, and △ t is the interval length; based on the _m rows of detection signals at time Ta + l × △ t , a corresponding original data matrix is generated and the l -th frame coordinate point bit information is output according to the original data matrix; based on the l- th frame coordinate point bit information and the l -1-th frame coordinate point bit information, a touch operation is determined; and based on the interval length △ t , a reporting rate b of the touch position is output, wherein b =1/△ t .

2，m

2，所述方法包括：控制所述第一信號通道通過對應的所述n列觸控驅動電極持續發射連續信號；控制所述第二信號通道通過對應的m行觸控感應電極感測n個連續信號，對感測到的所述n個連續信號中的每個連續信號進行混頻和處理計算得到m行檢測信號，其中，控制進行處理計算的所述n個連續信號中的每個連續信號的預設時長為連續信號的週期的正整數倍，所述m行檢測信號中的每行檢測信號包括n個檢測信號；基於已收集到的(T _a -(l-1)×△t，T _a )時間段的原始資料，及(T _a ，T _a +(l-1)×△t)時間段新生成資料輸出第l-1幀座標點位元資訊，其中，l為大於或等於1的正整數，△t為間隔時長；基於已收集到的(T _a -l×△t，T _a )時間段的原始資料，及(T _a ，T _a +l×△t)時間段新生成資料輸出第l幀座標點位元資訊；基於所述第l幀座標點位 元資訊和所述第l-1幀座標點位元資訊判斷觸控操作；以及基於所述間隔時長△t生成所述觸控位置的報點率b，其中，b=1/△t。 The second aspect of the present application provides a method for improving the reporting rate, which is applied to a touch device, wherein the touch device includes n columns of touch driving electrodes and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of the touch driving electrodes forms a first signal channel, and each row of the touch sensing electrodes forms a second signal channel.

2, m

2. The method comprises: controlling the first signal channel to continuously transmit continuous signals through the corresponding n columns of touch driving electrodes; controlling the second signal channel to sense n continuous signals through the corresponding m rows of touch sensing electrodes, mixing and processing each of the sensed n continuous signals to obtain m rows of detection signals, wherein the preset duration of each of the n continuous signals to be processed and calculated is controlled to be a positive integer multiple of the period of the continuous signal, and each row of the m rows of detection signals includes n detection signals; based on the collected raw data of the time period (T _a -( l -1)×△ t , T _a ) and (T _a , T _a +( l -1)×△ t ) time period, outputting the coordinate point bit information of the l -1th frame based on the newly generated data, wherein l is a positive integer greater than or equal to 1, and △ t is the interval length; outputting the _coordinate point bit information of the l- 1th frame based on the collected original data of the time period (Ta _- l ×△ t , Ta ) , and the newly generated data of the time period (Ta _, Ta ₊ l ×△ t ); judging the touch operation based on the coordinate point bit information of the l -1th frame and the coordinate point bit information of the l -1th frame; and generating the reporting rate b of the touch position based on the interval length △ t , wherein b =1/△ t .

In an embodiment of the present application, the touch operation determination based on the lth frame coordinate point bit information and the l -1th frame coordinate point bit information includes: calculating the difference between the lth frame coordinate point bit information and the l -1th frame coordinate point bit information; and determining the touch operation based on the difference.

In an embodiment of the present application, the mixing and processing of each of the n continuous signals to obtain the m-row detection signal comprises: mixing the n continuous signals sensed by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal, and obtaining the corresponding first row detection signal based on the first detection signal; mixing the n continuous signals sensed by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and obtaining the first detection signal corresponding to the first row detection signal based on the first detection signal; and The n continuous signals sensed by the touch sensing electrodes are mixed respectively to obtain the second detection signal corresponding to each continuous signal, and the corresponding second row detection signal is obtained based on the second detection signal; and so on, until the n continuous signals sensed by the m-th row of touch sensing electrodes in the m-row touch sensing electrodes are mixed respectively to obtain the m-th detection signal corresponding to each continuous signal, and the m-th row detection signal is obtained based on the m-th detection signal.

In an embodiment of the present application, the method further includes: generating a raw data matrix based on the m rows of detection signals includes: sequentially selecting the first row of detection signals, performing the calculation processing of the preset time length on each detection signal in the first row, and obtaining the first row of raw data corresponding to the first row of detection signals; looping and selecting multiple rows of detection signals until each detection signal in the mth row is calculated and processed for the preset time length to obtain the mth row of raw data; generating a raw data matrix based on the mth rows of detection signals.

In an embodiment of the present application, the method further includes: filtering the m-row detection signal.

In an embodiment of the present application, the first signal channel is controlled to continuously transmit continuous signals through the corresponding n columns of touch-driven electrodes at the same time, wherein the frequencies corresponding to any two of the n continuous signals are different.

In an embodiment of the present application, the first signal channel is controlled to continuously transmit continuous signals through the corresponding n columns of touch-driven electrode groups, wherein the frequencies corresponding to any two continuous signals in each group of continuous signals are different.

In an embodiment of the present application, the frequencies corresponding to the continuous signals transmitted in groups exist in at least two groups of arithmetic progressions, and the frequencies in each group of arithmetic progressions are different.

In an embodiment of the present application, the starting phase of each of the n continuous signals is an arbitrary phase or the starting phase difference between any two of the n continuous signals is an arbitrary phase difference.

In one embodiment of the present application, the computational processing includes at least one of integration processing, accumulation processing or fast Fourier transform processing.

The cooperative manufacturer of this application provides a touch chip, which is used to connect to n columns of touch driving electrodes in a touch device, and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of touch driving electrodes forms a first signal channel, and each row of touch sensing electrodes forms a second signal channel. The touch chip is used to implement the method for improving the reporting rate.

The fourth aspect of this application provides an electronic device, the electronic device includes a touch device, and the electronic device also includes the touch chip.

In response to a touch operation on a touch device, the present application controls n columns of touch driving electrodes to continuously emit continuous signals simultaneously, and after each row of touch sensing electrodes in m rows senses n continuous signals, obtains the l- th frame coordinate point bit information and the l -1-th frame coordinate point bit information through mixing and processing, and judges the touch operation based on the difference between the l- th frame coordinate point bit information and the l -1-th frame coordinate point bit information; and outputs a reporting rate b of the touch position based on an interval time length △ t , thereby improving the reporting rate.

1: Touch system

10: Touch device

100: Electronic equipment

11: Touch electrode

12: Touch chip

20: Control unit

201:Signal transmitting unit

202:Signal processing unit

2021: Mixing unit

2022: Filter unit

2023: Computing Unit

S41-S46, S51-S56: Steps

TX 1, TX 2... TXn : Touch drive electrode

RX 1, RX 2... RXm : Touch sensor electrode

Figure 1 is a schematic diagram of the structure of a touch device provided in an embodiment of this application.

Figure 2 is a schematic diagram of the application environment of a method for improving the reporting rate provided by the embodiment of this application.

Figure 3 is a schematic diagram of the framework of a touch control system provided in an embodiment of the present application.

Figure 4 is a schematic diagram of a method for improving the reporting rate provided in the embodiment of this application.

Figure 5 is a schematic diagram of another method for improving the reporting rate provided by the present application embodiment.

Figure 6 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

It should be noted that in the embodiments of this application, "at least one" means one or more, and "multiple" means two or more than two. "And/or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claim and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or precedence.

It should also be noted that the method disclosed in the embodiment of this application or the method shown in the flowchart includes one or more steps for implementing the method. Without departing from the scope of the claim, the execution order of multiple steps can be interchanged with each other, and some of the steps can also be deleted.

At present, most electronic products on the market use touch screens to implement human-computer interaction functions, especially various electronic terminal products, such as mobile phones, tablet computers, notebooks, and e-books. Most of them use capacitive touch screens for human-computer interaction. In recent years, the most widely used touch principle is the capacitive touch principle. That is, when a person's finger is placed on the touch area of an electronic terminal product, the touch area close to the finger will change in capacitance, and the finger's touch position is determined by detecting the position where the capacitance value changes.

Please refer to FIG. 1 , which is a schematic diagram of the structure of a touch control device provided in an embodiment of the present application. The touch control device 10 includes a plurality of touch control electrodes 11, and a touch control chip 12 (such as a touch control IC shown in FIG. 1 ) connected to each touch control electrode 11, hereinafter referred to as touch control IC 12. The touch control electrode 11 is not limited to transparent or opaque conductive materials such as tin oxide, metal grid, nanosilver, graphene, etc. In this embodiment, the touch control device 10 is a mutual capacitance touch control device, and the touch control electrodes 11 are all long strips. In the embodiment of the present application, the touch electrode 11 includes n columns of touch drive electrodes (including TX 1, TX 2... TXn ), and m rows of touch sensing electrodes (including RX 1, RX 2... RXm ) orthogonal to the n columns of touch drive electrodes. Each touch drive electrode is arranged in parallel in the same layer, and each touch sensing electrode is arranged in parallel in sequence. The touch drive electrodes are insulated from each other and cross vertically. Among them, the touch drive electrodes in each row form a first signal channel, and the touch sensing electrodes in each column form a second signal channel, and a node capacitor is formed at the intersection of the first signal channel and the second signal channel.

In one embodiment, when the human body or active pen touches the preset area on the touch device 10, the node capacitance at the preset area will change. Specifically, when a touch occurs, a coded periodic signal is sent through the touch drive electrode TXn of the first signal channel in the touch device 10. After receiving the coded periodic signal, the touch sensing electrode RXm first performs IQ demodulation on a single code chip, calculates the amplitude of the single code chip, and then jointly determines and distinguishes each first signal channel through multiple code chips, and then determines the corresponding position of the touch drive electrode TXn corresponding to the first signal channel on the touch device 10, thereby detecting the position of the touch operation on the touch panel 10. However, when the touch sensing electrode RXm receives the coded periodic signal, due to the discontinuity between the chips, it can only perform single chip demodulation, and the number of signal cycles in a single chip is relatively small, so that the data obtained after the analog-to-digital converter (ADC) sampling is not much, resulting in the inability to use high-order filters for effective filtering. In addition, when the touch device 10 is placed close to the display component, the display component displays different contents at different times, which will cause significant interference to the touch _sensing electrode RXm receiving the coded periodic signal. This interference may cause a significant decrease in the signal-to-noise ratio (SNR), which will seriously affect the calculation of the touch point coordinates and further reduce the accuracy and performance of the touch control.

This application embodiment provides a method for improving the reporting rate, which can improve the anti-noise performance of the system and the reporting rate of the touch device by controlling the interval between outputting each two frames of coordinate point bit information.

Refer to FIG. 2, which is a schematic diagram of the application environment of the method for improving the reporting rate provided in an embodiment of the present application. The method for improving the reporting rate is applied to a touch control system, and the touch control system 1 may include: a touch control electrode 11 and a control unit 20.

The control unit 20 includes a signal transmitting unit 201 and a signal processing unit 202. The signal transmitting unit 201 is used to control N rows of touch-driven electrodes to continuously transmit continuous signals.

In one embodiment, the signal transmitting unit 201 can control N columns of touch driving electrodes to simultaneously and continuously transmit n continuous signals, wherein the frequencies corresponding to any two of the n continuous signals are different. For example, the N columns of touch driving electrodes are TX 1, TX 2, ... TXn , and the n continuous signals are f ₁ ( t ), f ₂ ( t ) ... f _n ( t ). Then, starting at the same moment, the touch drive electrode TX1 can be continuously controlled to emit _a continuous signal f1 ( t ), the touch drive electrode TX2 can be continuously controlled to emit _{a continuous signal f2} ( t ₎ , the touch drive electrode TX3 can be continuously controlled to emit a continuous signal f3 ( t ), and so on, the touch drive electrode TXn can be continuously controlled to emit a continuous _signal fn ( t ). Among them, the frequency f ₁ of the continuous signal f ₁ ( t ), the frequency f ₂ of the continuous signal f ₂ ( t ), the frequency f ₃ of the continuous signal f ₃ ( t ) ... and the frequency f _n of the continuous signal f _n ( t ) are different from each other, that is, f ₁ ≠ f ₂ ≠ f ₃ ≠ ... ≠ f _n .

In another embodiment, the signal transmitting unit 201 can control N columns of touch drive electrodes to be grouped and continuously transmit n continuous signals, wherein the frequencies corresponding to any two continuous signals in each group of continuous signals are different, and the frequencies corresponding to different groups of continuous signals can be reused. For example, the N columns of touch drive electrodes are TX 1, TX 2... TXn , and the n continuous signals are f ₁ ( t ), f ₂ ( t )... f _n ( t ). Then, starting from the first moment t1, the first group of touch drive electrodes TX1 - TX10 can be continuously controlled to respectively transmit continuous signals f1 ( t ) -f10 ( t ), wherein the frequency _{f1 of} the continuous signal f1 ( t ), the frequency _f2 of _the continuous signal f2 ( t ) ... and _the frequency _{f10 of} the continuous signal f10 ( t ) _are different from each _other , that is, f1 ≠ f2 _≠ … _≠ f10 ; starting from the second moment t2, the second group of touch drive electrodes TX11 - TX20 can be continuously controlled _to respectively _transmit continuous signals f11 ( t ) -f20 ( t ), wherein the frequency _f11 of the continuous signal f11 ( t ), _the frequency f12 of _the continuous signal f12 ( t ₎ , ... and the frequency _f20 of the continuous signal f20 ( t ) _are different from each other, that is, f11 _≠ f12 _≠ … _≠ f20 ; and so on, starting from the Nth time tn, the Nth group of touch drive electrodes TXn -9 to TXn can be continuously controlled to emit the continuous signal fn _{- 9} ( t ) -fn (t ₎ . Wherein, the frequency fn _{- 9} of the continuous signal fn _{- 9} ( t ), the frequency fn _{- 8} of the continuous signal fn _{- 8} ( t ) ... and the frequency fn _{of the} continuous signal fn ( t ) are different from each other, that is, fn _{- 9} ≠ fn _{- 8} ≠ ... _≠ fn . The frequency corresponding to the first group of continuous signals can be the same as the frequency corresponding to the second group _of continuous signals. For example, f1 = _f11 = ... = fn _{- 9} .

In one embodiment, the n columns of touch drive electrodes correspond to the frequency of each of the n continuous signals. For example, the arrangement sequence of the n columns of touch drive electrodes corresponds to the frequency of each of the n continuous signals. For example, the touch drive electrode TX 1 transmits a continuous signal f ₁ ( t ) at a frequency of f ₁ ; the touch drive electrode TX 2 transmits a continuous signal f ₂ ( t ) at a frequency of f ₂ ; the touch drive electrode TX 3 transmits a continuous signal f ₃ ( t ) at a frequency of f ₃ ; ... the touch drive electrode TXn transmits a continuous signal f _n ( t ) at a frequency of f _n .

In some embodiments, the continuous signal can be a sinusoidal wave oscillation signal, a square wave signal, a trapezoidal wave signal, or a triangular wave signal.

In some embodiments, in order to avoid display interference generated by the display component, the touch system 1 can detect the frequency of the display interference signal, and the frequency of the continuous signal emitted by the signal transmitting unit 201 needs to avoid the frequency of the display interference signal. For example, the frequency of the continuous signal is greater than or equal to 10KHz and less than or equal to 500KHz.

In some embodiments, the starting phase of each of the n continuous signals is an arbitrary phase, or the starting phase difference between any two of the n continuous signals is an arbitrary phase difference.

In some embodiments, the touch operation includes but is not limited to at least one of a sliding operation, a single click operation, a double click operation, or a long press operation.

In some embodiments, the signal processing unit 202 is used to control the m-row touch sensing electrodes to continuously sense n continuous signals through each corresponding second signal channel, and perform frequency mixing and calculation processing on each of the n continuous signals to obtain m-row detection signals, wherein each row of detection signals in the m-row detection signals includes n detection signals, and the m-row detection signals constitute an initial frame, that is, the original data matrix at time Ta, and the original data matrix includes m rows and n columns of original data; based on the m-row detection signals at time Ta ₊ ( l -1) × △ t , a corresponding data matrix is generated and combined with the common data from Ta to Ta + ( _l - 2) × △ t , and the l- th detection signal is output. -1 frame coordinate point bit information, wherein l is a positive integer greater than or equal to 1, and △ t is the interval length; based on the m rows of detection signals at time Ta + l × △ t, a corresponding data matrix is generated and combined with the common data from Ta to Ta ₊ ( l -1) × △ t , and the l - _th frame coordinate point bit information is output. Based on the l- th frame coordinate point bit information and the l -1-th frame coordinate point bit information, the current touch position is determined and the touch coordinates are reported; and based on the interval length △ t , a reporting rate b of the touch position is generated, wherein b = 1/△ t .

Because the coordinate point bit information of each frame covers all the data from Ta to the current frame, the data volume is large, and the number of points after ADC sampling is relatively more, which can effectively filter in the calculation and improve the signal-to-noise ratio. At the same time, it is only necessary to compare the changes in the two adjacent frames of data to determine whether the touch action has occurred. For example, by comparing the data at two moments of Ta ₊ ( l -1) × △ t and Ta + l × _△ t , the touch judgment is realized, the reporting time interval is △ t , and the corresponding reporting rate is 1/△ t , which greatly improves the touch reporting rate. In some embodiments, the preset duration Ta for the signal processing unit 202 to process and calculate each of the n continuous signals _is a positive integer multiple of the period of the continuous signal. For example, when the n continuous signals are f1 ( t ₎ , f2 ( t )... fn ( t ), _the period _of the continuous signal f1 ( t ) is T1 _{, the} period _of the continuous signal f2 ( t ) is T2 ...the period of the continuous signal fn ₍ t ₎ is Tn . _Then the preset duration Ta must simultaneously satisfy a positive integer multiple _{of any} one _of T1 , T2 _... Tn _. Ta = N × Tn , Tn _{= 1} / fn , N is _a positive integer. That is, the default duration Ta is _a positive integer multiple _of T1 , and needs to be a positive integer multiple _of T2 ... and needs to be a positive integer multiple _of Tn .

In some embodiments, the signal processing unit 202 includes a mixing unit 2021, a filtering unit 2022 and a calculation unit 2023. The mixing unit 2021 is used to perform mixing processing on each of the n continuous signals to obtain m-row detection signals. The filtering unit 2022 is used to filter the m-row detection signals. The calculation unit 2023 is used to generate a corresponding data matrix based on the m-row detection signal at the time Ta ₊ ( l -1) × △ t and combine the common data from Ta to Ta ₊ ( l -2) × △ t _to output the l -1th frame coordinate point bit information, wherein l is a positive integer greater than or equal to 1, and △ t is the interval length; based on the m-row detection signal at the time Ta + l × △ t , generate a corresponding data matrix and combine the common data from _Ta to Ta + ( l -1) × △ t to output the l- th frame coordinate point bit information; based on the l -th frame coordinate point bit information and the l -1th frame coordinate point bit information, determine the touch position currently corresponding to the touch operation and report the touch position; and based on the interval length △ t generates the reporting rate b of the touch position, where b = 1/△ t .

In some other embodiments, the signal processing unit 202 is further used to control the m rows of touch sensing electrodes to continuously sense n continuous signals, perform frequency mixing and calculation processing on each of the n continuous signals to obtain m rows of detection signals, wherein each row of the m rows of detection signals includes n detection signals, and generate an initial frame corresponding to a raw data matrix at time Ta, wherein the raw data matrix includes m rows and n columns of raw data, and obtain the initial frame coordinate point bit information according to the raw data matrix corresponding to the initial frame, wherein the initial frame coordinate point bit information includes the raw data from time _t1 to time Ta; then, at time Ta +( l -1)×△ t , based on the collected (Ta- ₍ l -1)× _△ t , Ta ) time segment, and the newly generated data in the time segment (T _a , T _a +( l -1)×△ t ) output the l -1th frame coordinate point bit information, where l is a positive integer greater than or equal to 1, and △ t is the interval length. Based on the collected original data in the time segment (T _a - l ×△ t , T _a ) and the newly generated data in the time segment (T _a , T _a + l ×△ t ) output the l -1th frame coordinate point bit information; based on the l -1th frame coordinate point bit information and the l -1th frame coordinate point bit information, determine the touch operation; and based on the interval length △ t, generate the reporting rate b of the touch position, where b =1/△ t .

Specifically, the signal processing unit 202 includes a mixing unit 2021, a filtering unit 2022 and a calculation unit 2023. The mixing unit 2021 is used to perform mixing processing on each of the n continuous signals to obtain m-row detection signals. The filtering unit 2022 is used to filter the m-row detection signals. The calculation unit 2023 is used to output _{the coordinate} point bit information of the l-1th frame based on the original data of the time period (Ta- ₍ l -1)×△ t , Ta ) that has been collected and the newly generated data of the time period (Ta , Ta ₊ ( l -1)×△ t ), wherein the original data matrix includes m rows and n columns of original data, l is a positive integer greater than or equal to 1, and △ t is the interval length; based on the _original data of the time period (Ta _- l ×△ t , Ta ) that has been collected and the newly generated data of the time period (Ta _, Ta ₊ l ×△ t ), the coordinate point bit information of the l -1th frame is output; based on the coordinate point bit information of the l -1th frame and the newly generated data of the l -1th frame -1 frame coordinate point bit information to determine the touch position currently corresponding to the touch operation and report the touch position; and based on the interval time △ t, generate the reporting rate b of the touch position, wherein b =1/△ t .

In some embodiments, since the original data matrix used to determine the touch position is a two-dimensional matrix, each row of touch sensing electrodes in the m rows of touch sensing electrodes senses n continuous signals, and it is necessary to distinguish which row of touch driving electrodes the n continuous signals sensed by each row of touch sensing electrodes come from, so as to determine the touch position and report the touch position and calculate the reporting rate of the reported touch position. For example, when the touch driving electrode TX 1 transmits the continuous signal f ₁ ( t ), the touch driving electrode TX 2 transmits the continuous signal f ₂ ( t ) at the same time. Then, the touch sensing electrode RX 1 will sense the continuous signal f ₁ ( t ) and the continuous signal f ₂ ( t ) at the same time. That is, the signal sensed by the touch sensing electrode RX 1 is the sum of the continuous signal f ₁ ( t ) emitted by the touch driving electrode TX 1 and the continuous signal f ₂ ( t ) emitted by the touch driving electrode TX 2. In order to determine the first amplitude of the continuous signal f ₁ ( t ) received by RX 1 and the second amplitude of the continuous signal f ₂ ( t ). It is necessary to use continuous signal f ₁ ( t ) and continuous signal f ₂ ( t ) to perform mixing demodulation on the signal received by touch sensing electrode RX 1 respectively. The frequency component of continuous signal f ₁ ( t ) in the signal received by touch sensing electrode RX 1 is demodulated by continuous signal f ₁ ( t ), and the amplitude of the demodulated signal is calculated, and the amplitude is used as one of the original data in the original data matrix; the frequency component of continuous signal f ₂ ( t ) in the signal received by touch sensing electrode RX 1 is demodulated by continuous signal f ₂ ( t ), and the amplitude of the demodulated signal is calculated, and the amplitude is used as another original data in the original data matrix. By analogy, when the touch sensing electrode RX 1 receives n continuous signals, it can demodulate n raw data, and the n raw data constitute the first row of raw data of the raw data matrix. Then, each row of the m rows of touch sensing electrodes can demodulate n raw data after receiving n continuous signals. Thus, m rows of raw data can be obtained, and each row of raw data includes n raw data.

In some embodiments, the mixing unit 2021 performs mixing processing on each of the n continuous signals sensed to obtain the m-row detection signal, including: mixing the n continuous signals sensed by the first column of the touch sensing electrodes in the m-row touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal, and obtaining the first row detection signal based on the first detection signal corresponding to each continuous signal; mixing the n continuous signals sensed by the first column of the touch sensing electrodes in the m-row touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and obtaining the first row detection signal based on the first detection signal corresponding to each continuous signal; The n continuous signals sensed by the sensing electrodes are mixed respectively to obtain the second detection signal corresponding to each continuous signal, and the second row detection signal is obtained based on the second detection signal corresponding to each continuous signal; and so on, until the n continuous signals sensed by the m-th row of touch sensing electrodes in the m-row touch sensing electrodes are mixed respectively to obtain the n-th detection signal corresponding to each continuous signal, and the m-th row detection signal is obtained based on the n-th detection signal corresponding to each continuous signal.

In some embodiments, the calculation unit 2023 calculates the n*m detection signals after filtering to obtain n*m original data, including: sequentially selecting the first row of detection signals, processing and calculating each detection signal in the first row for a preset time length, and obtaining a first set of original data corresponding to the first row of detection signals; looping to select multiple rows of detection signals until each detection signal in the mth row is processed and calculated for a preset time length to obtain the mth group of original data; and generating an original data matrix based on the m rows of detection signals. In some embodiments, the calculation unit 2023 determines the current touch position based on the lth frame coordinate point bit information and the l -1th frame coordinate point bit information, including: calculating the difference between the lth frame coordinate point bit information and the l -1th frame coordinate point bit information; and determining the current touch position based on the difference.

In the embodiment of the present application, since the signal transmitting unit 201 can control N columns of touch driving electrodes to continuously send continuous signals, and the signal processing unit 202 also operates continuously, the filtering effect of the touch system 1 can be improved, so that the overall anti-noise ability of the system is greatly improved, and the reporting rate of the system at this time is 1/△ t . Among them, △ t is not limited and can be flexibly set according to the use scene, so as to obtain an adjustable reporting rate. The smaller △ t is, the higher the reporting rate is.

In order to explain the above method of improving the reporting rate in more detail, the following will be explained in conjunction with the system framework diagram shown in Figure 3.

In the embodiment of the present application, the touch device includes n columns of touch drive electrodes TX 1, TX 2 ... TXn , and m rows of touch sensing electrodes RX 1, RX 2 ... RXm orthogonal to the n columns of touch drive electrodes. Each column of touch drive electrodes forms a first signal channel, that is, the touch device includes n first signal channels; each row of touch sensing electrodes forms a second signal channel, that is, the touch device includes m second signal channels. In the first signal channel, continuous signals are respectively sent to each row of touch sensing electrodes in the m rows of touch sensing electrodes RX 1, RX 2 ... RXm through the corresponding n columns of touch drive electrodes TX 1, TX 2 ... TXn . As shown in FIG3 , the touch drive electrode TX1 transmits a continuous signal f ₁ ( t ), the touch drive electrode TX 2 transmits a continuous signal f ₂ ( t ), the touch drive electrode TX3 transmits a continuous signal f ₃ ( t ), and so on, the touch drive electrode TXn transmits a continuous signal f _n ( t ). The touch sensing electrode RXm senses the continuous signals f ₁ ( t ), f ₂ ( t )... f _n ( t ). For example, when m=1, the touch sensing electrode RX 1 senses the continuous signals f ₁ ( t ), f ₂ ( t )... f _n ( t ); when m=2, the touch sensing electrode RX 2 senses the continuous signals f ₁ ( t ), f ₂ ( t )... f _n ( t ); when m=3, the touch sensing electrode RX 3 senses the continuous signals f ₁ ( t ), f ₂ ( t )... f _n ( t ).

In order to determine which touch driving electrodes TX1 , TX2 , ... TXn each _of the n continuous signals f1 ( t ), f2 ( t ) ... fn ( t ₎ sensed by the touch sensing electrode RXm comes from, the corresponding amplitude can be calculated according to the determined continuous signals to obtain the bit information of the l- _th frame coordinate point, that is, the original data matrix, and the touch position corresponding to the touch operation is determined according to the original data matrix, and the touch position is reported and the reporting rate of the reported touch position is calculated.

In the embodiment of the present application, n continuous signals sensed by each row of touch sensing electrodes may be mixed to obtain corresponding detection signals. For example, _the continuous signal f1 ( t ) is used to mix the n continuous signals f1 ( t ), f2 ( t )... fn ( t ₎ received by the touch sensing electrode RX1 to obtain a detection signal corresponding to _the continuous signal _f1 ( t ); _the continuous signal f2 ( t ) is used to mix the _n continuous signals f1 ( _t ), _f2 ( t )... fn ( t ₎ received by the touch sensing electrode RX1 to obtain a detection signal corresponding to the continuous signal f2 ( t ); and so on. The continuous signal fn ( t ) is used to mix _the n continuous signals f1 ( _t ), f2 ( t )... fn ( _t ) received by the touch sensing electrode RX1 to obtain a detection signal corresponding to the continuous signal f2 ( t ) _. t )... f _n ( t ) is mixed to obtain a detection signal corresponding to the continuous signal f _n ( t ), thereby obtaining n detection signals corresponding to the touch sensing electrode RX 1. Similarly _, the n continuous signals f1 ( t ), f2 ( t )... fn (t) received by the touch sensing electrode RX2 are mixed by the continuous signal f1 ( t ) to obtain a detection signal corresponding to the continuous signal f1 ( _{t )} ; the n continuous _{signals f1} ( t ), _f2 ( t )... _fn ( t ) received by the touch sensing electrode RX2 are mixed by the continuous signal f2 ( t ) to obtain a detection signal corresponding to the continuous signal _f2 ( t ) ; and so on, _the n continuous signals f1 ( _t ), f2 ( t ) received by the touch sensing electrode RXm are mixed by the continuous signal fn ₍ t ) to obtain a detection signal corresponding to the _continuous signal f2 ( t ₎ . t )... f _n ( t ) are mixed to obtain a detection signal corresponding to the continuous signal f _n ( t ), thereby obtaining n detection signals corresponding to the touch sensing electrode RXm . According to the n detection signals corresponding to the touch sensing electrode RX 1... and the n detection signals corresponding to the touch sensing electrode RXm , m rows of detection signals can be obtained. Each row of detection signals in the m rows of detection signals includes n detection signals.

其中，RXm為第m行觸控感應電極RXm接收到的n個連續信號f ₁(t)、f ₂(t)...f _n (t)，1

i

n。 It should be noted that the mixing method for the n continuous signals sensed by each row of touch sensing electrodes is IQ modulation demodulation. For example, mixing the n continuous signals f ₁ ( t ), f ₂ ( t ) ... f _n ( t ) received by the touch sensing electrode RXm by any one of the continuous signals f _i ( t ) among the continuous signals f ₁ ( t ), f ₂ ( t ) ... f _n ( t ) specifically includes calculating the frequency component of fi ( _t ) in the n continuous signals received by RXm , and solving it by the following formula (1):

Wherein, RXm is the n continuous signals f1 ₍ t ), f2 ( t )... fn ( t ₎ received by _the touch sensing electrode RXm in the mth row.

i

n .

In the embodiment of the present application, after mixing the n continuous signals sensed by each row of touch sensing electrodes to obtain the corresponding detection signals, the method for improving the reporting rate further includes: filtering the mixed m rows of detection signals. Specifically, the m rows of detection signals can be filtered through a filter to filter out noise. In one embodiment, the filter includes a cascaded integrator-comb filter (CIC filter) and a FIR filter.

In the embodiment of the present application, after filtering the mixed m lines of detection signals, it is also necessary to calculate the amplitude of each detection signal in each line of detection signals to obtain the original data. The formula (2) for calculating the amplitude of each detection signal is:

Specifically, by performing a calculation process for a preset time length on each detection signal in each line of detection signals, the corresponding original data of each line is obtained. The preset time length is a positive integer multiple of the period of all continuous signals, and the calculation process includes at least one of integral processing, cumulative processing or fast Fourier transform processing.

As shown in FIG3 , after the n continuous signals f ₁ ( t ), f ₂ ( t ) ... f _n ( t ) received by the touch sensing electrode RX 1 are mixed by the continuous signal f ₁ ( t ), the detection signal corresponding to the continuous signal f ₁ ( t ) is calculated by formula (1), and the detection signal includes an I signal and a Q signal corresponding to the continuous signal f ₁ ( t ), and continuous signals corresponding to other continuous signals f ₂ ( t ) ... f _n ( t ). The amplitudes of the I signal and the Q signal corresponding to f ₁ ( t ) are calculated by processing formula (2), and the amplitudes of the continuous signals corresponding to other continuous signals f ₂ ( t ), f ₃ ( t ) ... f _n ( t ) calculated within the preset time length are made zero. Therefore, the amplitudes of the I signal and the Q signal corresponding to the continuous signal f ₁ ( t ) can be used as the original data corresponding to a ₁₁ in the original data matrix A. Similarly, _the n continuous signals f1 ( t ), f2 ( _t ) ... fn ( t ) received by the touch sensing electrode RX1 are mixed by _the continuous signal f2 ( t ), and the detection signal corresponding to the continuous signal f2(t ₎ is calculated by formula ( ₁ ) _. The detection signal includes the _I signal and the Q signal corresponding to the continuous signal f2 ( t ), as well as the continuous signals corresponding to the other continuous signals f1 ₍ t ), f3 ( t ) ... fn ( t ) _. The amplitudes of the I signal and the Q signal corresponding to the continuous signal f ₂ ( t ) are calculated by processing formula (2), and the amplitudes of the continuous signals corresponding to other continuous signals f ₁ ( t ), f ₃ ( t ) ... f _n ( t ) calculated within a preset time length are made zero. Therefore, the amplitudes _of the I signal and the Q signal corresponding to the continuous signal f2 ( t ) can be used as the original data corresponding _{to a12} in the original data matrix A; and similarly, the _n continuous signals f1 ( t ), _f2 ( t ) ... fn ( t ₎ received by the touch sensing electrode RX1 are mixed by the continuous signal fn ( _t ) , and the detection signal corresponding to the continuous signal fn ₍ t ) is calculated by formula (1), and the detection signal includes the I signal and the Q signal corresponding to the continuous signal fn ₍ t ), and the continuous signals corresponding to _the other continuous signals f1 ₍ t ), f2 ( t ) ... fn _{- 1} ( t ). The amplitudes of the I signal and the Q signal corresponding to the continuous signal f _n ( t ) are calculated by processing formula (2), and the amplitudes of the continuous signals corresponding to other continuous signals f ₁ ( t ), f ₂ ( t ) ... f _{n -1} ( t ) calculated within the preset time length are made zero. Therefore, the amplitudes of the I signal and the Q signal corresponding to the continuous signal f _n ( t ) can be used as the original data corresponding to a _{1 n} in the original data matrix A. Thus, a ₁₁ , a ₁₂ ... a _{1 n} in the original data matrix A can be obtained.

Similarly, _the n continuous signals f1 ( t ), f2 ( t )... fn ₍ t ) received by the touch sensing electrode RXm are mixed _by the _continuous signal f1 ( t ), and the detection signal corresponding to the continuous signal f1 ( t ) is obtained by formula ( ₁ ). The detection signal includes the I signal and the Q signal corresponding to the _continuous signal f1 ( t ), and the continuous signals corresponding to _the other continuous signals f2 ( t )... fn ( t ₎ . The amplitudes of the I signal and the Q signal corresponding to f ₁ ( t ) are calculated by processing formula (2), and the amplitudes of the continuous signals corresponding to other continuous signals f ₂ ( t ), f ₃ ( t ) ... f _n ( t ) calculated within the preset time length are made zero. Therefore, the amplitudes of the I signal and the Q signal corresponding to the continuous signal f ₁ ( t ) can be used as the original data corresponding to a _{m 1} in the original data matrix A. Similarly, by mixing _the n continuous signals f1 ( t ₎ , f2 ( _t ) ... fn ( t ) received by the touch sensing electrode RXm through the continuous signal f2 ( t ), a detection signal corresponding to the continuous signal f2 ₍ t ) is obtained _. The detection signal includes an I signal and a Q signal corresponding to _the continuous signal f2 ( t ), as well as continuous signals corresponding to other continuous signals f1 ₍ t ), f3 ( t ₎ ... fn ( t ₎ . The amplitudes of the I signal and the Q signal corresponding to the continuous signal f ₂ ( t ) are obtained by processing and calculation, and the amplitudes of the continuous signals corresponding to other continuous signals f ₁ ( t ), f ₃ ( t ) ... f _n ( t ) calculated within a preset time length are made zero. Therefore, the amplitudes _of the I signal and the Q signal corresponding to the continuous signal f2 ( t ) can be used as the original data corresponding to a _m2 in the original data matrix A; and similarly, the n continuous signals f1(t), f2(t)...fn(t ₎ received by _the touch _sensing electrode RXm are _mixed by _the continuous signal _fn ( t ) to obtain _a detection signal corresponding to the continuous signal fn ( t ₎ , which includes the I signal and the Q signal corresponding to the continuous signal fn (t), as well as continuous signals corresponding to other continuous signals _f1 ( t ), f2 ( t )... fn _{- 1} ( t ). The amplitudes of the I signal and the Q signal corresponding to the continuous signal f _n ( t ) are obtained by processing and calculation, and the amplitudes of the continuous signals corresponding to other continuous signals f ₁ ( t ), f ₂ ( t ) ... f _{n -1} ( t ) calculated within a preset time length are made zero. Therefore, the amplitudes of the I signal and the Q signal corresponding to the continuous signal f _n ( t ) can be used as the original data corresponding to a _mn in the original data matrix A. Thus , a _{m 1} , a _{m 2} ... a _mn in the original data matrix A can be obtained.

，根據該原始資料矩陣A可以輸出初始幀座標點位元資訊；在T _a +△t時刻，基於上述計算可以得到原始資料及根據所述原始資料矩陣輸出第一幀座標點位元資訊，△t為間隔時長；依次類推，在T _a +(l-1)×△t時刻，基於上述計算可以得到m行檢測信號對應的原始資料矩陣及根據所述原始資料矩陣輸出第l-1幀座標點位元資訊；在T _a +l×△t時刻，基於上述計算可以得到m行檢測信號對應的原始資料矩陣及根據所述原始資料矩陣輸出第l幀座標點位元資訊。 At time T _a , based on the above calculation, the original data matrix corresponding to m rows of detection signals can be obtained:

_, based on the original data matrix A, the initial frame coordinate point bit information can be output; at the time Ta +△ t , based on the above calculation, the original data can be obtained and the first frame coordinate point bit information can be output according to the original data matrix, △ t is the interval length; and so on, at the time Ta +( _l -1)×△ t , based on the above calculation, the original data matrix corresponding to the m _- row detection signal can be obtained and the l -1th frame coordinate point bit information can be output according to the original data matrix; at the time Ta + l ×△ t , based on the above calculation, the original data matrix corresponding to the m-row detection signal can be obtained and the lth frame coordinate point bit information can be output according to the original data matrix.

When the user touches the touch device, in response to the user's touch operation, the signal amplitude received by the touch sensing electrode at the touch position will change, causing the original data of the corresponding coordinate position to change (e.g., decrease). Assuming that the initial moment of responding to the touch operation on the touch device is t1 and t1=0, then the initial frame coordinate point bit information includes the _coordinate point bit information from t1 to Ta , and the first frame coordinate point bit information includes the coordinate point bit information from t=0 to Ta +△ t , _where △ t is the interval time. By subtracting the initial frame coordinate point bit information from the first frame coordinate point bit information, the change of the original data at the corresponding touch position in the original data matrix A can be obtained, thereby judging whether a touch operation occurs and outputting the _touch position corresponding to the time Ta + △ t ; and so on, at the time Ta ₊ ( l -1) × △ t , the l -1th frame coordinate point bit information includes the coordinate point bit information from the time _t1 to the time Ta + ( l -1) × △ t , and at the time Ta ₊ l × △ t , the lth frame coordinate point bit information includes the coordinate point bit information from the time t1 to the time Ta + _l × △ t . Then, by calculating the difference between the coordinate point bit information of the lth frame and the coordinate point bit information of the l -1th frame, the touch operation and the current corresponding touch position can be determined; and the reporting rate b of the touch position is output based on the interval time △ t , where b =1/△ t .

2，m

2，其中，提升報點率的方法包括： Next, a method for improving the reporting rate provided by an embodiment of the present application is described in conjunction with FIG4. The method for improving the reporting rate is applied to a touch device, wherein the touch device comprises n columns of touch driving electrodes and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of touch driving electrodes forms a first signal channel, each row of touch sensing electrodes forms a second signal channel, and n columns of touch driving electrodes form a second signal channel.

2, m

2. Among them, the methods to improve the reporting rate include:

Step S41: Control the n rows of touch-driven electrodes corresponding to the first signal channel to continuously emit continuous signals.

In the embodiment of the present application, n columns of touch driving electrodes TX 1, TX 2, ... TXn respectively continuously send continuous signals to each row of touch sensing electrodes in m rows of touch sensing electrodes RX 1, RX 2, ... RXm .

In the embodiment of the present application, the signal transmitting unit can control N columns of touch drive electrodes to simultaneously transmit n continuous signals, wherein the frequencies corresponding to any two of the n continuous signals are different. For example, the N columns of touch drive electrodes are TX 1, TX 2 ... TXn , and the n continuous signals are f ₁ ( t ), f ₂ ( t ) ... f _n ( t ). Then, at the same moment, the touch drive electrode TX1 can emit _a continuous signal f1 ( t ), the touch drive electrode TX2 can emit _a continuous signal f2 ( t ), the touch drive electrode TX3 can emit a continuous signal f3 ( t ), and so _on , the touch drive electrode TXn can emit a continuous signal fn ₍ t ). Among them, the frequency f ₁ of the continuous signal f ₁ ( t ), the frequency f ₂ of the continuous signal f ₂ ( t ), the frequency f ₃ of the continuous signal f ₃ ( t ) ... and the frequency f _n of the continuous signal f _n ( t ) are different from each other, that is, f ₁ ≠ f ₂ ≠ f ₃ ≠ ... ≠ f _n .

In another embodiment, the signal transmitting unit can control N columns of touch drive electrodes to be grouped and continuously transmit n continuous signals, wherein the frequencies corresponding to any two continuous signals in each group of continuous signals are different, and the frequencies corresponding to different groups of continuous signals can be reused. For example, the N columns of touch drive electrodes are TX 1, TX 2... TXn , and the n continuous signals are f ₁ ( t ), f ₂ ( t )... f _n ( t ). Then, starting from the first moment t1, the first group of touch drive electrodes TX1 - TX10 can be continuously controlled to respectively transmit continuous signals f1 ( t ) -f10 ( t ), wherein the frequency _{f1 of} the continuous signal f1 ( t ), the frequency _f2 of _the continuous signal f2 ( t ) ... and _the frequency _{f10 of} the continuous signal f10 ( t ) _are different from each _other , that is, f1 ≠ f2 _≠ … _≠ f10 ; starting from the second moment t2, the second group of touch drive electrodes TX11 - TX20 can be continuously controlled _to respectively transmit continuous signals f11 ( t ) -f20 ( t ), wherein _, The frequency _f11 of the continuous signal f11 ( t ), _the frequency _f12 of the continuous signal f12 ( t ) , ... and the frequency f20 of the continuous signal f20 _{(t) are different from each other, that is, f11 ≠ f12} ≠ _… ≠ f20 _; and so on, starting from the Nth time tn, the Nth group of touch drive electrodes TXn -9 to TXn can be continuously controlled to emit the continuous signal fn _{- 9} ( t ) -fn (t ₎ . Wherein, the frequency fn _{- 9} of the continuous signal fn _{- 9} ( t ), the frequency fn _{- 8} of the continuous signal fn _{- 8} ( t ) ... and the frequency fn _{of the} continuous signal fn ( t ) are different from each other, that is, fn _{- 9} ≠ fn _{- 8} ≠ ... _≠ fn . The frequency corresponding to the first group of continuous signals can be the same as the frequency corresponding to the second group _of continuous signals. For example, f1 = _f11 = ... = fn _{- 9} .

In another embodiment, the frequencies corresponding to _the continuous signals f1 ( _t ), f2 ( t ) ... fn ( t ₎ exist in at least two groups of arithmetic progressions, and the frequencies in each group of arithmetic progressions are different. Different groups of arithmetic progressions may correspond to the same arithmetic progressions or different arithmetic progressions. For example, starting from the first moment t1, the first group of touch-driven electrodes TX1 - TX5 are continuously controlled to respectively transmit continuous signals f1 ( t ) -f5 ( t ), wherein _the frequency _{f1 of} the continuous signal f1 ( t ), the frequency _f2 of the continuous signal f2 ( t ) ... and _the frequency _f5 of the continuous signal f5 ( t ) are different from each other, that is, f1 ≠ _{f2 ≠ …} ≠ _{f5 ,} but the _frequency values corresponding to f1 ₍ t ) -f5 ( t ₎ form an arithmetic progression. For example, f2 _- f1 =△ f . In order to avoid the display interference signal generated by the display component, assuming that the touch system detects that the frequency of the display interference signal is _frequency f6 , the frequency of the continuous signal emitted by the signal transmitting unit 201 needs to avoid the frequency f6 _of the display interference signal, _and the second group of touch driving electrodes TX6 - TX10 are continuously controlled to emit continuous signals f7 ( t ) -f11 ( t ), _{respectively ,} and the frequencies _of f7 ( t ) -f11 ( t ) are different from _{each other and the frequency values constitute an arithmetic progression. For example, f7-f5 =} 2 _△ f , f8 - f7 =△ f . The frequency of the display interference signal can be monitored by setting the data threshold, such as the signal-to-noise ratio threshold. If the signal-to-noise ratio generated by the display component is lower than the signal-to-noise ratio threshold, then the amplitude of the point bit information change sensed by the RX is abnormal. At this time, it is determined that the display noise is too large and a frequency hopping operation is required to avoid the frequency of this display interference signal.

Step S42: control m rows of touch sensing electrodes to continuously sense n continuous signals, perform mixing and processing on each of the n continuous signals to obtain m rows of detection signals, wherein a preset time length Ta for calculating and processing each of the n continuous signals is a positive integer multiple of the _period of all continuous signals, each row of the m rows of detection signals includes n detection signals, and generates an original data matrix corresponding to the initial frame at time Ta _.

In the present application embodiment, after controlling m rows of touch sensing electrodes to continuously receive n continuous signals, it is also necessary to calculate which column of touch driving electrodes the n continuous signals received by each row of touch sensing electrodes come from, thereby determining the touch position and reporting the touch position and calculating the reporting rate of the reported touch position.

Specifically, the mixing unit performs mixing processing on each of the n continuous signals sensed to obtain the m-row detection signal, including: mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal, and obtaining the first row detection signal based on the first detection signal corresponding to each continuous signal; mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal; and mixing the n continuous signals received by the first row of touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each continuous signal. The n continuous signals sensed by the touch sensing electrodes are mixed respectively to obtain the second detection signal corresponding to each continuous signal, and the second row detection signal is obtained based on the second detection signal corresponding to each continuous signal; and so on, until the n continuous signals sensed by the m-th row of touch sensing electrodes in the m-th row of touch sensing electrodes are mixed respectively to obtain the n-th detection signal corresponding to each continuous signal, and the m-th row detection signal is obtained based on the n-th detection signal corresponding to each continuous signal.

In some embodiments, the preset duration for the signal processing unit to process and calculate each of the n continuous signals is a positive integer multiple of the period of the continuous signal. For example, when the n continuous signals are f ₁ ( t ), f ₂ ( t ) ... f _n ( t ), the period of the continuous signal f ₁ ( t ) is T ₁ , the period of the continuous signal f ₂ ( t ) is T ₂ ... the period of the continuous signal f _n ( t ₎ is T _n . Then the preset duration Ta must simultaneously satisfy a positive integer multiple of any one of T ₁ , T ₂ ... T _n . Ta = _N × T _n , T _n = 1/ f _n , N is a positive integer. That is, the default duration is a positive integer multiple of T ₁ , and needs to be a positive integer multiple of T ₂ ... and needs to be a positive integer multiple of T _n .

Step S43: Generate a corresponding raw data matrix based on the m-row detection signal at time Ta ₊ ( l -1)×△ t and output the l -1th frame coordinate point bit information according to the raw data matrix, wherein the raw data matrix includes m rows and n columns of raw data, l is a positive integer greater than or equal to 1, and △ t is the interval time.

In the embodiment of the present application, when the human body or active pen touches the preset area on the touch device, the signal amplitude received by the touch sensing electrode in the preset area will change, causing the original data of the corresponding _coordinate position to change (e.g., decrease). In order to calculate the change and output accurate touch position information, it is necessary to calculate the bit information of the l -1th frame coordinate point at the time Ta +( l -1)×△ t . Specifically, assuming that the initial time in response to the touch operation on the touch device is t1 and t1=0, then the initial frame coordinate point bit information includes the _coordinate point bit information from time t1 to time Ta , and the first frame coordinate point bit information includes the coordinate point bit information from time _t1 =0 to time Ta +△ t , where △ t is the interval time. By subtracting the initial frame coordinate point bit information _from the first frame coordinate point bit information, the change of the original data at the corresponding touch position in the original data matrix A can be obtained, thereby obtaining the touch position corresponding to the touch operation at time Ta + △ t ; and so on, at time Ta ₊ ( l -1) × △ t , the l -1 frame coordinate point bit information includes the coordinate point bit information from time t1 to time Ta ₊ ( l -1) × △ t .

In the embodiment of the present application, generating a corresponding raw data matrix based on m rows of detection signals at time Ta ₊ ( l -1) × △ t includes: sequentially selecting the first row of detection signals from the m rows of detection signals at time Ta ₊ ( l -1) × △ t , performing a processing calculation for a preset time length on each detection signal in the first row, and obtaining the first row of raw data corresponding to the first row of detection signals; looping and selecting multiple rows of detection signals until each detection signal in the mth row is processed and calculated for the preset time length to obtain the mth row of raw data; generating a raw data matrix based on the mth row of detection signals. The specific method of generating the raw data matrix is described in FIG. 3.

Step S44: Generate a corresponding original data matrix based on the m _- row detection signal at time Ta + l × Δt and output the l- th frame coordinate point bit information according to the original data matrix.

In the embodiment of the present application, the bit information _of the l- th frame coordinate point at the time Ta + l ×△ t needs to be calculated. Generating the corresponding raw data matrix based on the m-row detection signal at the time Ta + _l ×△ t includes: sequentially selecting the first row of detection signals from the m-row detection signals at the time Ta+l×△t , performing calculation processing _for a preset time length on each detection signal in the first row, and obtaining the first row of raw data corresponding to the first row of detection signals; looping to select multiple rows of detection signals until each detection signal in the m-th row is calculated and processed for the preset time length to obtain the m-th row of raw data; generating the raw data matrix based on the m-row detection signals.

Step S45: Determine the touch operation based on the coordinate point bit information of the lth frame and the coordinate point bit information of the l -1th frame.

In an embodiment of the present application, the difference between the coordinate point bit information of the lth frame and the coordinate point bit information of the l -1th frame is calculated; based on the difference, it is determined whether a touch operation occurs and the touch position is reported.

In another embodiment of the present application, a corresponding raw data matrix is generated based on the m-row detection signal at time Ta ₊ ( l -1) × △ t , and the l -1th frame coordinate point bit information is output according to the raw data matrix, and the touch position at time Ta ₊ ( l -1) × △ t is output based on the l -1th frame coordinate point bit information. A corresponding raw _data matrix is generated based on the m-row detection signal at time Ta + l × △ t , and the l- th frame coordinate point bit information is output according to the raw data matrix, and the touch position at time Ta ₊ l × △ t is output based on the l- th frame coordinate point bit information.

Step S46: Outputting a reporting rate b of the touch position based on the interval time Δt , wherein b = 1/ Δt .

In the embodiment of the present application, by controlling n rows of touch driving electrodes to continuously emit continuous signals, and after each row of touch sensing electrodes in m rows of touch sensing electrodes receives n continuous signals, m rows of detection signals are obtained through mixing and processing, and a corresponding raw data matrix is generated based on the m rows of detection signals at the time of Ta ₊ ( l -1) × △ t , and the l -1th frame coordinate point bit information is output according to the raw data matrix, wherein the raw data matrix includes m rows and n columns of raw data, l is a positive integer greater than or equal to 1, and △ t is the interval length; based on Ta + l × △ t, the corresponding raw data matrix is generated based on the m rows of detection signals at the time of Ta + (l -1) × _△ t, and ... The m rows of detection signals at time t generate a corresponding raw data matrix and output the l- th frame coordinate bit information according to the raw data matrix; determine the touch position currently corresponding to the touch operation based on the l -th frame coordinate bit information and the l -1-th frame coordinate bit information and report the touch position; and output a reporting rate b of the touch position based on the interval time △ t , wherein b =1/△ t .

2，m

2，其中，提升報點率的方法包括： In another embodiment, another method for improving the reporting rate provided by the embodiment of the present application is described in conjunction with FIG5. The method for improving the reporting rate is applied to a touch device, wherein the touch device comprises n columns of touch driving electrodes and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of touch driving electrodes forms a first signal channel, each row of touch sensing electrodes forms a second signal channel, and n columns of touch driving electrodes form a second signal channel.

2, m

2. Among them, the methods to improve the reporting rate include:

Step S51: Control the n rows of touch-driven electrodes corresponding to the first signal channel to continuously emit continuous signals.

Step S52: control m rows of touch sensing electrodes to continuously sense n continuous signals, perform frequency mixing and processing on each of the n continuous signals to obtain m rows of detection signals, wherein a preset time length Ta for calculating and processing _each of the n continuous signals is a positive integer multiple of the period of all continuous signals, each row of detection signals in the m rows of detection signals includes n detection signals, and generate _an original data matrix corresponding to the initial frame at _time Ta _, Ta = N × Tn , Tn _=1/fn , _fn is the frequency of the continuous signal, _and N is a positive integer.

In the embodiment of this application, the specific description of steps S51-S52 can refer to steps S41-S42 shown in Figure 4, and will not be repeated here.

Step S53: Based on the collected original data of the time period (Ta- ₍ l -1)× _△ t , Ta ) and the newly generated data of the time period (Ta _, Ta ₊ ( l -1)×△ t ), output the l -1th frame coordinate point bit information, where l is a positive integer greater than or equal to 1, and △ t is the interval time.

In an embodiment of the present application, in order to reduce the amount of data, the coordinate point information of the subsequent frame does not need to include the data of the previous frame, and the touch position can be obtained according to the data of the current frame at the current moment _. At the moment Ta ₊ ( l -1)×△ t , based on the collected original data of the time period (Ta- ₍ l -1)×△ t , Ta ) and the newly generated data of the time period (Ta _, Ta ₊ ( l -1)×△ t ), the coordinate point bit information of the l -1th frame is output, where l is a positive integer greater than or equal to 1, and △ t is the interval time.

Step S54: Output the coordinate point bit information of the lth frame based on the collected original data of the time period (Ta _- l × _△ t , Ta ) and the newly generated data of the time period (Ta _, Ta ₊ l × △ t ).

In an embodiment of the present application, the coordinate point bit information of the next frame, i.e., the lth frame, can be output based on the collected original data of the time period (Ta _- l × △ t , _Ta ) and the newly generated data of the time period ( _Ta , Ta ₊ l × △ t ).

Step S55: Determine the touch operation based on the coordinate point bit information of the lth frame and the coordinate point bit information of the l -1th frame.

Step S56: Generate the reporting rate b of the touch position based on the interval time length △ t , where b =1/△ t .

In the embodiment of this application, the specific description of steps S55-S56 can refer to steps S45-S46 shown in Figure 4, and will not be repeated here.

This application also provides a touch chip, which is used to connect to n columns of touch driving electrodes in a touch device, and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of touch driving electrodes forms a first signal channel, and each row of touch sensing electrodes forms a second signal channel. The touch chip is used to execute the method for improving the reporting rate of any of the above embodiments.

As shown in FIG6 , the present application also provides an electronic device 100, and the electronic device 100 includes the above-mentioned touch chip 12.

It can be understood that the beneficial effects that can be achieved by the touch chip 12 and the electronic device 100 provided in the embodiment of the present application can refer to the beneficial effects of the corresponding touch detection method provided above, and will not be elaborated here.

This application embodiment also provides a computer storage medium, which stores a computer program. When the computer program is executed by a processor, the processor executes the above-mentioned method for improving the reporting rate.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is 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 storage medium or transmitted via the computer storage medium. The computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g. coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g. infrared, wireless, microwave, etc.) means. The computer storage medium can be any available medium that can be accessed by the computer or a data storage device such as a server or data center that includes one or more available media. The available medium can be a magnetic medium (e.g. floppy disk, hard disk, tape), an optical medium (e.g. digital versatile disc (DVD)), or a semiconductor medium (e.g. solid state disk (SSD)), etc.

A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes. In the absence of conflict, the technical features in this embodiment and the implementation scheme can be combined arbitrarily.

The above-mentioned embodiments are only described as preferred embodiments of this application and do not limit the scope of this application. Under the premise of not departing from the design spirit of this application, various modifications and improvements made by ordinary technicians in this field to the technical solution of this application should fall within the scope of protection determined in the application of this application.

S41-S46: Steps

Claims (12)

A method for improving the reporting rate is applied to a touch device, wherein the touch device comprises n columns of touch driving electrodes and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of touch driving electrodes forms a first signal channel, and each row of touch sensing electrodes forms a second signal channel, n≥2, m≥2, and the method comprises: controlling the first signal channel to continuously transmit a continuous signal through the corresponding n columns of touch driving electrodes; The second signal channel is controlled to sense n continuous signals through the corresponding m rows of touch sensing electrodes, and each of the n continuous signals sensed is mixed and processed to obtain m rows of detection signals, wherein the preset duration of each of the n continuous signals to be processed and calculated is a positive integer multiple of the period of the continuous signal, and each row of the m rows of detection signals includes n detection signals, wherein the The method of mixing and processing each of the n continuous signals to obtain the m-row detection signal comprises: mixing the n continuous signals sensed by the first row of the touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each of the continuous signals, and obtaining the corresponding first row detection signal based on the first detection signal; and mixing the n continuous signals sensed by the second row of the touch sensing electrodes in the m rows of touch sensing electrodes respectively to obtain the first detection signal corresponding to each of the continuous signals; and obtaining the first row detection signal corresponding to the first row detection signal based on the first detection signal; and obtaining the first row detection signal corresponding to the first row ... The n continuous signals are mixed respectively to obtain the second detection signal corresponding to each continuous signal, and the corresponding second row detection signal is obtained based on the second detection signal; and so on, until the n continuous signals sensed by the m-th row of touch sensing electrodes in the m-row touch sensing electrodes are mixed respectively to obtain the m-th detection signal corresponding to each continuous signal, and the m-th row detection signal is obtained based on the m-th detection signal; based on The m rows of detection signals at the time instant generate a corresponding raw data matrix and output the first -1 frame coordinate point bit information, wherein the raw data matrix includes m rows and n columns of raw data, is a positive integer greater than or equal to 1, is the interval length; based on The m rows of detection signals at the time instant generate a corresponding raw data matrix and output the first Frame coordinate point bit information; based on the Frame coordinate point bit information and the -1 frame coordinate point bit information to determine touch operation; and based on the interval length Output the reporting rate b of the touch position, where: . A method for improving the reporting rate is applied to a touch device, wherein the touch device includes n columns of touch driving electrodes and m rows of touch sensing electrodes orthogonal to the n columns of touch driving electrodes, wherein each column of touch driving electrodes forms a first signal channel, and each row of touch sensing electrodes forms a second signal channel, n≥2, m≥2, and the method includes: controlling the first signal channel to continuously transmit a continuous signal through the corresponding n columns of touch driving electrodes; controlling the second signal channel to continuously transmit a continuous signal; The channel senses n continuous signals through corresponding m rows of touch sensing electrodes, mixes and processes each of the n continuous signals to obtain m rows of detection signals, wherein the preset duration of each of the n continuous signals to be processed and calculated is controlled to be a positive integer multiple of the period of the continuous signal, each row of the m rows of detection signals includes n detection signals, wherein the mixing of each of the n continuous signals is performed The method comprises: mixing the n continuous signals sensed by the first row of the touch sensing electrodes in the m rows of touch sensing electrodes to obtain the first detection signal corresponding to each continuous signal, and obtaining the corresponding first row detection signal based on the first detection signal; mixing the n continuous signals sensed by the second row of the touch sensing electrodes in the m rows of touch sensing electrodes to obtain the first detection signal corresponding to each continuous signal; and a second detection signal, and based on the second detection signal, a corresponding second row detection signal is obtained; and so on, until the n continuous signals sensed by the m-th row touch sensing electrodes in the m-row touch sensing electrodes are mixed respectively, to obtain the m-th detection signal corresponding to each of the continuous signals, and based on the m-th detection signal, an m-th row detection signal is obtained; and at time Ta, an original data matrix corresponding to the initial frame is generated, the original data matrix including m rows and n columns of original data, , , is the frequency of the continuous signal, N is a positive integer; based on the collected , The original data of the time period, and ) time period newly generated data output -1 frame of coordinate point bit information, where is a positive integer greater than or equal to 1, is the interval length; based on the collected , The original data of the time period, and ) time period newly generated data output Frame coordinate point bit information; based on the Frame coordinate point bit information and the -1 frame coordinate point bit information to determine touch operation; and based on the interval length Generate the reporting rate b of the touch position, where: . A method for improving the reporting rate as described in claim 1 or 2, wherein the Frame coordinate point bit information and the -1 frame coordinate point bit information to determine the touch operation includes: calculating the first The frame coordinate point bit information is the same as the -1 frame coordinate point bit information difference; and judging whether a touch operation occurs and determining the current touch position according to the difference. A method for improving the reporting rate as described in claim 3, wherein generating a raw data matrix based on the m rows of detection signals includes: sequentially selecting a first row of detection signals, performing calculation processing for a preset time length on each detection signal in the first row, and obtaining a first row of raw data corresponding to the first row of detection signals; loopingly selecting multiple rows of detection signals until each detection signal in the mth row is calculated and processed for a preset time length to obtain the mth row of raw data; and generating a raw data matrix based on the m rows of detection signals. The method for improving the reporting rate as described in claim 1 or 2 further includes: filtering the m-row detection signals. A method for improving the reporting rate as described in claim 1 or 2, wherein the first signal channel is controlled to continuously emit continuous signals simultaneously through the corresponding n columns of touch-driven electrodes, wherein the frequencies corresponding to any two of the n continuous signals are different. A method for improving the reporting rate as described in claim 1, wherein the first signal channel is controlled to continuously emit continuous signals through corresponding n columns of touch-driven electrode groups, wherein the frequencies corresponding to any two continuous signals in each group of continuous signals are different. A method for improving the reporting rate as described in claim 7, wherein the frequencies corresponding to the continuous signals continuously transmitted in groups exist in at least two groups of arithmetic progressions, and the frequencies in each group of arithmetic progressions are different. A method for improving the reporting rate as described in claim 7, wherein the starting phase of each of the n continuous signals is an arbitrary phase or the starting phase difference between any two of the n continuous signals is an arbitrary phase difference. In the method for improving the reporting rate as described in claim 1 or 2, the calculation processing includes at least one of integration processing, accumulation processing or fast Fourier transform processing. A touch chip, which is used to connect to n columns of touch drive electrodes in a touch device, and m rows of touch sensing electrodes orthogonal to the n columns of touch drive electrodes, wherein each column of touch drive electrodes forms a first signal channel, and each row of touch sensing electrodes forms a second signal channel. The touch chip is used to execute the method for improving the reporting rate as described in any one of claims 1 to 10. An electronic device includes a touch device, wherein the electronic device also includes the touch chip as described in claim 11.

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