CN102968217A - Reference updating method and system for touch screen as well as touch terminal - Google Patents
Reference updating method and system for touch screen as well as touch terminal Download PDFInfo
- Publication number
- CN102968217A CN102968217A CN2012105277257A CN201210527725A CN102968217A CN 102968217 A CN102968217 A CN 102968217A CN 2012105277257 A CN2012105277257 A CN 2012105277257A CN 201210527725 A CN201210527725 A CN 201210527725A CN 102968217 A CN102968217 A CN 102968217A
- Authority
- CN
- China
- Prior art keywords
- value
- touch
- sampling
- screen
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to the technical field of touch and provides a reference updating method for a touch screen. The reference updating method comprises the following steps: backing up a characteristic value in a stable state; taking an original value for electric sampling on the touch screen as a reference value so as to establish the reference and calculating an electrified characteristic value; subtracting the electrified characteristic value by the backup characteristic value and taking an absolute value and finding out a maximum value in the absolute value; judging whether the maximum value is greater than the set first threshold or not, if the maximum value is greater than the set first threshold, judging that the current reference is incorrect or not; if the current reference is incorrect, judging whether touch exists on the touch screen or not; if no touch exists on the touch screen, updating the reference at fixed time; if the touch exists on the touch screen, monitoring whether the current characteristic value obtained by calculating according to the currently-sampled original value with the backup characteristic value or not in real time; and if the current characteristic value is consistent with the backup characteristic valve, updating the reference. According to the reference updating method disclosed by the invention, when the touch control chip is actually detected, a correct reference value can be acquired quickly and accurately, and thus the reference is correctly updated.
Description
Technical field
The present invention relates to the touch technology field, particularly relate to a kind of datum renewal method, system and touch control terminal of touch-screen.
Background technology
Along with the development of touch technology and terminal technology, increasing terminal device adopts touch control manner to carry out man-machine interaction.At present, the touch-screen that terminal device adopts mainly contains two kinds of capacitance touch screen and electric resistance touch screens, and wherein capacitive touch screen has obtained more and more users' favor with its good sharpness, transmittance and sense of touch.
Capacitance touch screen is in detecting the touch process, and the touch control chip obtains raw data by ADC (Analog-to-Digital Converter, A-D converter) sampling first, obtains original value; Set up benchmark according to original value again, obtain reference value; In follow-up calculating, deduct original value by reference value, obtain difference, can calculate coordinate figure by difference.In order to obtain correct difference, need to safeguard a correct benchmark, also namely be used for normative original value and should be the original value that samples when capacitance touch screen is in steady state (SS), the state when steady state (SS) refers to not have on the capacitance touch screen object of meeting the change original value sizes such as finger, felt pen, water droplet to exist.And in actual use, capacitance touch screen can be because the existence that on the screen water droplet, hand perspiration is arranged and the situation such as touch is arranged when powering on, so that accessed benchmark is incorrect, thereby cause sensitivity of touch screen variation or wrong report point, wrong report point refers to the actual not touch in certain position on the capacitance touch screen and the touch control chip has calculated coordinate.
Particularly, touch-control system need to be set up first a initial baseline after powering on, and the original value of sampling the rear first time that is about to power on directly uses as reference value; After setting up initial baseline, in follow-up sampling is calculated, according to the data variation rule of difference, upgrade again benchmark, upgrade benchmark and refer to original value with current sampling as reference value, follow-up sampling calculate with this original value as a reference.As shown in Figure 1, be the workflow diagram of capacitance touch screen, after the touch control chip obtains original value by the ADC sampling first, judge whether it is first sampling after powering on, if, then with the original value of this sampling as benchmark, otherwise, benchmark and original value done poorly obtaining difference, then calculate coordinate, the data variation rule according to difference judges whether that needs upgrade benchmark again, if need then original value with this sampling as benchmark, otherwise, finish this flow process, continue next time sampling.System is when powering on, owing to can not determine whether finger or water droplet etc. are arranged on this moment screen, meeting be so that have the benchmark of pointing or getting access to a mistake during water droplet at screen, and in follow-up processing procedure, when finger leaves or after water droplet dries, should be able to upgrade fast benchmark.If be in steady state (SS) on the screen when powering on, and in the follow-up use procedure, because the upper environmental change of screen, such as temperature variation, or when on the screen water droplet or sweat point being arranged, in order to make the capacitance touch screen normal running, need to dynamically upgrade benchmark according to environmental change, for example when the capacitance plate temperature changed with the temperature of place environment, the original value of sampling also can change accordingly, every excessively regular hour of this moment need to be upgraded a secondary standard, in order to avoid touch insensitive or the wrong report point.If when datum renewal, the benchmark that gets access to is made mistakes, and then might cause the appearance of sensitivity of touch screen variation or wrong report point phenomenon.Therefore, how can correctly obtain reference value, be the key point that can capacitance touch screen touch control chip normally detect.
Summary of the invention
The present invention is directed to the defects of prior art, a kind of datum renewal method of touch-screen is provided, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.The present invention adopts following technical scheme:
A kind of datum renewal method of touch-screen, described method comprises the steps:
When touch-screen is in steady state (SS), to the sampling of each sampled point, obtain the original value of steady state (SS) sampling, obtain eigenwert and the backup of described each sampled point of touch-screen according to the raw calculation of described steady state (SS) sampling, obtain backing up eigenwert;
Touch-screen powers on, to the sampling of each sampled point, the original value of the sampling that obtains powering on, with the original value of the described sampling that powers on as reference value setting up benchmark, and obtain the upper electrical characteristic values of described each sampled point of touch-screen according to the described raw calculation that powers on sampling;
Do described upper electrical characteristic values and backup eigenwert poor and take absolute value, find out the maximal value in the described absolute value;
Whether judge described maximal value greater than the first threshold of setting, if described maximal value judges then that greater than the first threshold of setting current benchmark is incorrect;
Whether if current benchmark is incorrect, judging has touch on the touch-screen, if no touch is then regularly upgraded benchmark, if touch is arranged, benchmark is upgraded in the then variation of the original value of the current sampling of Real Time Monitoring when the original value of current sampling meets the datum renewal condition.
The present invention also provides a kind of datum renewal system of touch-screen, comprising:
Sampling unit is used for to each sampled point sampling the original value that obtains sampling;
Computing unit, be used for obtaining according to the raw calculation of steady state (SS) sampling the eigenwert of each sampled point of touch-screen, when powering on according to touch-screen and the raw calculation of each time point sampling after powering on obtain the current eigenwert of each sampled point of touch-screen, and do current eigenwert and backup eigenwert poor and take absolute value, find out the maximal value in the described absolute value;
Backup units, the eigenwert when being used for the backup steady state (SS) obtains backing up eigenwert;
Reference value is set up the unit, the original value that is used for sampling when touch-screen powered on as reference value to set up benchmark;
Judging unit, whether the maximal value that the sampling when powering on according to touch-screen for judgement calculates is greater than the first threshold of setting, if described maximal value is judged that then current benchmark is incorrect, and is judged when current benchmark is incorrect whether touch is arranged on the touch-screen greater than the first threshold of setting;
The reference value updating block when being used on and the touch-screen incorrect at current benchmark no touch, regularly upgrades benchmark, and, touch-screen incorrect at current benchmark has and touch and the original value of current sampling upgrades benchmark when meeting the datum renewal condition;
Monitoring unit, when for and touch-screen incorrect at current benchmark touch being arranged, the variation of the original value of the current sampling of Real Time Monitoring.
The present invention also provides a kind of touch control terminal, and described touch control terminal comprises the datum renewal system of above-mentioned touch-screen.
The present invention by the backup touch-screen steady state (SS) the time eigenwert, sampled value and backup eigenwert are compared, and the correctness of judgment standard is so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.
Description of drawings
Fig. 1 is the workflow diagram of capacitance touch screen;
Fig. 2 is the process flow diagram of the datum renewal method of embodiment 1 touch-screen;
Fig. 3 is that the incorrect and touch-screen of determinating reference has the method flow diagram that upgrades benchmark when touching among the embodiment 1;
Fig. 4 is the process flow diagram of the datum renewal method of embodiment 2 touch-screens;
Fig. 5 is that the incorrect and touch-screen of determinating reference has the method flow diagram that upgrades benchmark when touching among the embodiment 2;
Fig. 6 is the process flow diagram of the datum renewal method of embodiment 3 touch-screens;
Fig. 7 is that the incorrect and touch-screen of determinating reference has the method flow diagram that upgrades benchmark when touching among the embodiment 3;
Fig. 8 is the structured flowchart of the datum renewal system of embodiment 4 touch-screens.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the invention by the backup touch-screen steady state (SS) the time eigenwert, sampled value and backup eigenwert are compared, and the correctness of judgment standard is so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.Eigenwert can be ratio value between the original value of difference value, touch-screen neighbouring sample point sampling between the original value of touch-screen neighbouring sample point sampling or the original value of each sampled point sampling of touch-screen etc.The below take above-mentioned 3 kinds of eigenwerts as example, is described in detail technical solution of the present invention respectively.
Embodiment 1:
In the present embodiment, eigenwert is the difference value between the original value of touch-screen neighbouring sample point sampling.See also shown in Figure 2ly, be the process flow diagram of the datum renewal method of the embodiment of the invention 1 touch-screen.The method comprises the steps:
Step S101: steady state (SS) sampling, the difference value of neighbouring sample point and backup when calculating steady state (SS).
In this step, when touch-screen is in steady state (SS) each sampled point is sampled, obtain the original value of steady state (SS) sampling, obtain difference value between the original value of touch-screen neighbouring sample point sampling according to the raw calculation of steady state (SS) sampling again, back up this difference value, as the reference quantity of datum renewal, so that the touch control chip when reality detects, can get access to correct reference value rapidly and accurately.This difference value can back-up storage in the nonvolatile memory of touch control chip, Flash Memory (flash memory) for example, PROM (Programmable read-only memory, programmable read only memory), EAROM (Electrically alterable read only memory, electrically-alterable ROM (EAROM)), EPROM (Erasable programmable read only memory, EPROM (Erasable Programmable Read Only Memory)) or EEPROM (Electrically erasable programmable read only memory, EEPROM (Electrically Erasable Programmable Read Only Memo)) etc., in the present embodiment difference value back-up storage in the Flash of touch control chip Memory.
The below describes for example.If the original value that capacitance touch screen is sampled when steady state (SS) is as shown in the table, wherein the first behavior sampled point is numbered, the original value of second each sampled point of behavior:
The original value of table 1 steady state (SS) sampling
| Numbering | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Original value | 2100 | 2050 | 1900 | 1950 | 2010 | 2200 | 1920 | 2010 | 2300 | 2100 |
This moment, the touch control chip backed up reference data in Flash Memory, difference value during with steady state (SS) between the original value of touch-screen neighbouring sample point sampling is stored among the Flash Memory, namely back up difference value back_diff[i]=S[i+1]-S[i], back_diff[i wherein] be abbreviated as B[i], as shown in the table:
Table 2 backup difference value
| Numbering | B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 |
| Backup value | -50 | -150 | 50 | 60 | 190 | -280 | 90 | 290 | -200 |
The foundation of this backup has dual mode, a kind of is before touch-screen dispatches from the factory, factory does not touch on guaranteeing screen and when being in steady state (SS), it is poor that current reference value is done, obtain back_diff[i], another kind is not calibrate when dispatching from the factory, and the automatic learning by software in the product use procedure obtains, and it is comparatively complicated that this mode is compared first kind of way.
Step S102: the sampling that powers on, set up benchmark, calculate the difference value of neighbouring sample point when powering on.
In this step, after touch-screen powers on, to each sampled point sampling, obtain the original value that powers on and sample, with the original value of the sampling that powers on as reference value setting up benchmark, and obtain difference value between the original value of touch-screen neighbouring sample point sampling according to the raw calculation of the sampling that powers on.
If system shielded water is arranged before powering on, and the original value of sampling for the first time when powering on is as shown in the table, will gets access to wrong benchmark after powering on so:
The original value of sampling when table 3 powers on
| Numbering | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Original value | 2100 | 2050 | 2000 | 2250 | 2130 | 2200 | 1920 | 2010 | 2300 | 2100 |
This moment is as difference value such as following table between the original value of the neighbouring sample point sampling of benchmark:
The difference value of sampling when table 4 powers on
| Numbering | B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 |
| Difference value | -50 | -50 | 250 | -120 | 70 | -280 | 90 | 290 | -200 |
Step S103: the difference value in the time of will powering on is done poor with the backup difference value and is taken absolute value, and finds out the maximal value in the absolute value.
Present embodiment judges by comparison the power on difference value of current benchmark neighbouring sample point and the similarity degree between the backup difference value among the Flash Memory whether current benchmark is correct.Specifically compare its similarity degree by both being done mode poor and that take absolute value.In this step, do difference value and the backup difference value among the table 2Flash Memory of the time sampling of powering in the table 4 poor and get its absolute value, find out the maximal value in the absolute value.
Step S104: whether judge this maximal value greater than first threshold, if, execution in step S105, otherwise, illustrate that benchmark is correct, finish this flow process, undertaken by normal touch workflow.
In this step, judge by a threshold value of relatively maximal value and setting whether current benchmark is correct.Wherein, first threshold is set according to the result of reality debugging in design process, can no longer change after setting.
Step S105: current benchmark is incorrect.
Maximal value illustrates that greater than first threshold at this moment current benchmark is incorrect.
Step S106: judged whether touch, if, execution in step S107, otherwise, execution in step S108.
When current benchmark is incorrect, continue to judge whether touch is arranged on the touch-screen.Specifically can judge by the following method:
To each sampled point sampling, obtain the original value of current sampling, the original value that deducts current sampling with current reference value obtains difference;
Judge that whether this difference is less than the Second Threshold of setting;
If this difference then is judged to be no touch less than the Second Threshold of setting, otherwise, be judged to be touch.
Wherein, Second Threshold is set according to the result of reality debugging in design process, can no longer change after setting.
Step S107: the variation of the original value of the current sampling of Real Time Monitoring, when meeting the datum renewal condition, upgrades the original value of current sampling benchmark.
When touch-screen has touch, need the variation of the original value of the current sampling of Real Time Monitoring, when the original value of current sampling meets the datum renewal condition, illustrate that current original value is more suitable for doing the reference amount, need to upgrade benchmark at once, wrong before benchmark is substituted.The datum renewal condition can be set according to actual conditions, be not limited to a kind of, for example can by calculate current eigenwert, reference characteristic value respectively and the backup eigenwert between difference, if current eigenwert is less with the difference of backup eigenwert than reference characteristic value with the difference of backup eigenwert, and when the variable quantity between these two differences surpasses a setting value, think that then the original value of current sampling meets the datum renewal condition, be more suitable in doing benchmark, at this moment renewable benchmark.Concrete grammar is as shown in Figure 3:
Steps A 101: judge whether that benchmark is incorrect and touch is arranged, if, execution in step A102, otherwise, finish this flow process, undertaken by normal touch workflow.
Steps A 102: sampling calculates the difference value of current neighbouring sample point and calculates the reference difference score value according to reference value.
This step obtains the original value of current sampling to the sampling of each sampled point, obtains the difference value between the original value of current touch-screen neighbouring sample point sampling according to the raw calculation of current sampling, i.e. diff_cur[i]=rawdata[i+1]-rawdata[i]; And calculate difference value between the reference value of touch-screen neighbouring sample point sampling, i.e. diff_ref[i according to reference value]=refdata[i+1]-refdata[i].
Steps A 103: do poor with the backup difference value current difference value, reference difference score value respectively and take absolute value.
Do the difference value between the original value of current touch-screen neighbouring sample point sampling and backup difference value poor and take absolute value, be i.e. diff_c[i]=Abs (diff_cur[i]-back_diff[i]); And do the difference value between the reference value of touch-screen neighbouring sample point sampling and backup difference value poor and take absolute value, be i.e. diff_r[i]=Abs (diff_ref[i]-back_diff[i]).
Steps A 104: find out respectively two groups of maximal values in the absolute value.
This step counts respectively two groups of maximal values in the absolute difference, wherein diff_c[i] in maximal value be the first maximal value diff_cmax, diff_r[i] in maximal value be the second maximal value diff_rmax.
Steps A 105: whether judge the first maximal value less than the second maximal value, if, execution in step A106, otherwise, execution in step A102 returned.
In this step, as the first maximal value diff_cmax during less than the second maximal value diff_rmax, illustrate that current original value is progressively near backup value; Otherwise, illustrate that the sampling original value of this moment does not improve, need resampling.
Steps A 106: whether judge the absolute value of the second maximal value and the first peaked difference greater than the 3rd threshold value, if, execution in step A107, otherwise, execution in step A102 returned.
In this step, the absolute value of the difference by further comparison the second maximal value diff_rmax and the first maximal value diff_cmax and a threshold value of setting judge whether the original value of current sampling meets the datum renewal condition.Wherein, the 3rd threshold value is set according to the result of reality debugging in design process, can no longer change after setting.If the difference of the second maximal value diff_rmax and the first maximal value diff_cmax does not surpass the 3rd threshold value, illustrate that the sampling original value of this moment does not meet the datum renewal condition, need resampling.
Steps A 107: the wrong report point is arranged, force to upgrade a secondary standard.
When the absolute value of the difference of the second maximal value diff_rmax and the first maximal value diff_cmax during greater than the 3rd threshold value set, illustrate that currency is the original value that does not have touch condition, current touch is the wrong report point, do not carry out touch operation this moment, and need to force to upgrade a secondary standard, thereby eliminate the wrong report point and recover correct benchmark.
Step S108: regularly upgrade benchmark.
If no touch is every through the predetermined time interval, the original value of current sampling is replaced current reference value to upgrade benchmark.
Difference value when present embodiment passes through the backup steady state (SS) between the original value of touch-screen neighbouring sample point sampling, difference value when powering on and after powering between the original value of each sampled point sampling and the difference value of backup are compared, the correctness of judgment standard, so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.
Embodiment 2:
In the present embodiment, eigenwert is the ratio value between the original value of touch-screen neighbouring sample point sampling.See also shown in Figure 4ly, be the process flow diagram of the datum renewal method of the embodiment of the invention 2 touch-screens.The method comprises the steps:
Step S201: steady state (SS) sampling, the ratio value of neighbouring sample point and backup when calculating steady state (SS).
In this step, when touch-screen is in steady state (SS) each sampled point is sampled, obtain the original value of steady state (SS) sampling, obtain ratio value between the original value of touch-screen neighbouring sample point sampling according to the raw calculation of steady state (SS) sampling again, back up this ratio value, as the reference quantity of datum renewal, so that the touch control chip when reality detects, can get access to correct reference value rapidly and accurately.This ratio value is the ratio between the original value of the neighbouring sample point sampling of amplification one setting multiple.The ratio value back-up storage is in the Flash of touch control chip Memory in the present embodiment.
The below describes for example.If the original value that capacitance touch screen is sampled when steady state (SS) is as shown in the table, wherein the first behavior sampled point is numbered, the original value of second each sampled point of behavior:
The original value of table 5 steady state (SS) sampling
| Numbering | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Original value | 2100 | 2050 | 1900 | 1950 | 2010 | 2200 | 1920 | 2010 | 2300 | 2100 |
This moment, the touch control chip backed up reference data in Flash Memory, ratio value during with steady state (SS) between the original value of touch-screen neighbouring sample point sampling is stored among the Flash Memory, because MCU (Micro Control Unit, micro-control unit) is difficult to process decimal, need to ask the result of ratio to amplify a setting multiple, to obtain an integer, the enlargement factor of this setting can be according to the actual conditions adjustment, amplify S[0 such as but not limited to the result that will ask ratio] doubly, namely back up ratio value back_diff[i]=(S[i+1]/S[i]) * S[0], back_diff[i wherein] be abbreviated as B[i], as shown in the table:
Table 6 backup ratio value
| Numbering | B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 |
| Backup value | 2050 | 1946 | 2155 | 2164 | 2298 | 1832 | 2198 | 2402 | 1917 |
The foundation of this backup has dual mode, a kind of is before touch-screen dispatches from the factory, factory does not touch on guaranteeing screen and when being in steady state (SS), it is poor that current reference value is done, obtain back_diff[i], another kind is not calibrate when dispatching from the factory, and the automatic learning by software in the product use procedure obtains, and it is comparatively complicated that this mode is compared first kind of way.
Step S202: the sampling that powers on, set up benchmark, calculate the ratio value of neighbouring sample point when powering on.
In this step, after touch-screen powers on, to each sampled point sampling, obtain the original value that powers on and sample, with the original value of the sampling that powers on as reference value setting up benchmark, and obtain ratio value between the original value of touch-screen neighbouring sample point sampling according to the raw calculation of the sampling that powers on.
If system shielded water is arranged before powering on, and the original value of sampling for the first time when powering on is as shown in the table, will gets access to wrong benchmark after powering on so:
The original value of sampling when table 7 powers on
| Numbering | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Original value | 2100 | 2050 | 2000 | 2250 | 2130 | 2200 | 1920 | 2010 | 2300 | 2100 |
This moment is as ratio value such as following table (amplifying) between the original value of the neighbouring sample point sampling of benchmark:
The ratio value of sampling when table 8 powers on
| Numbering | B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 |
| Ratio value | 2050 | 2048 | 2362 | 1988 | 2169 | 1832 | 2198 | 2402 | 1917 |
Step S203: the ratio value in the time of will powering on is done poor with the backup ratio value and is taken absolute value, and finds out the maximal value in the absolute value.
Present embodiment judges by comparison the power on ratio value of current benchmark neighbouring sample point and the similarity degree between the backup ratio value among the Flash Memory whether current benchmark is correct.Specifically compare its similarity degree by both being done mode poor and that take absolute value.In this step, do ratio value and the backup ratio value among the table 6Flash Memory of the time sampling of powering in the table 8 poor and get its absolute value, find out the maximal value in the absolute value.
Step S204: whether judge this maximal value greater than first threshold, if, execution in step S205, otherwise, illustrate that benchmark is correct, finish this flow process, undertaken by normal touch workflow.
In this step, judge by a threshold value of relatively maximal value and setting whether current benchmark is correct.Wherein, first threshold is set according to the result of reality debugging in design process, can no longer change after setting.
Step S205: current benchmark is incorrect.
Maximal value illustrates that greater than first threshold at this moment current benchmark is incorrect.
Step S206: judged whether touch, if, execution in step S207, otherwise, execution in step S208.
When current benchmark is incorrect, continue to judge whether touch is arranged on the touch-screen.Specifically can judge by the following method:
To each sampled point sampling, obtain the original value of current sampling, the original value that deducts current sampling with current reference value obtains difference;
Judge that whether this difference is less than the Second Threshold of setting;
If this difference then is judged to be no touch less than the Second Threshold of setting, otherwise, be judged to be touch.
Wherein, Second Threshold is set according to the result of reality debugging in design process, can no longer change after setting.
Step S207: the variation of the original value of the current sampling of Real Time Monitoring, when meeting the datum renewal condition, upgrades the original value of current sampling benchmark.
When touch-screen has touch, need the variation of the original value of the current sampling of Real Time Monitoring, when the original value of current sampling meets the datum renewal condition, illustrate that current original value is more suitable for doing the reference amount, need to upgrade benchmark at once, wrong before benchmark is substituted.The datum renewal condition can be set according to actual conditions, be not limited to a kind of, for example can by calculate current eigenwert, reference characteristic value respectively and the backup eigenwert between difference, if current eigenwert is less with the difference of backup eigenwert than reference characteristic value with the difference of backup eigenwert, and when the variable quantity between these two differences surpasses a setting value, think that then the original value of current sampling meets the datum renewal condition, be more suitable in doing benchmark, at this moment renewable benchmark.Concrete grammar is as shown in Figure 5:
Steps A 201: judge whether that benchmark is incorrect and touch is arranged, if, execution in step A202, otherwise, finish this flow process, undertaken by normal touch workflow.
Steps A 202: sampling calculates the ratio value of current neighbouring sample point and calculates the benchmark ratio value according to reference value.
This step is to each sampled point sampling, obtain the original value of current sampling, obtain the ratio value between the original value of current touch-screen neighbouring sample point sampling according to the raw calculation of current sampling, i.e. prop_cur[i]=rawdata[i+1]/rawdata[i] * rawdata[0]; And calculate ratio value between the reference value of touch-screen neighbouring sample point sampling, i.e. prop_ref[i according to reference value]=refdata[i+1]/refdata[i] * refdata[0].
Steps A 203: do poor with the backup ratio value current ratio value, benchmark ratio value respectively and take absolute value.
Do the ratio value between the original value of current touch-screen neighbouring sample point sampling and backup ratio value poor and take absolute value, be i.e. diff_c[i]=Abs (prop_cur[i]-back_prop[i]); And do the ratio value between the reference value of touch-screen neighbouring sample point sampling and backup ratio value poor and take absolute value, be i.e. diff_r[i]=Abs (prop_ref[i]-back_prop[i]).
Steps A 204: find out respectively two groups of maximal values in the absolute value.
This step counts respectively two groups of maximal values in the absolute difference, wherein diff_c[i] in maximal value be the first maximal value diff_cmax, diff_r[i] in maximal value be the second maximal value diff_rmax.
Steps A 205: whether judge the first maximal value less than the second maximal value, if, execution in step A206, otherwise, execution in step A202 returned.
In this step, as the first maximal value diff_cmax during less than the second maximal value diff_rmax, illustrate that current original value is progressively near backup value; Otherwise, illustrate that the sampling original value of this moment does not improve, need resampling.
Steps A 206: whether judge the absolute value of the second maximal value and the first peaked difference greater than the 3rd threshold value, if, execution in step A207, otherwise, execution in step A202 returned.
In this step, the absolute value of the difference by further comparison the second maximal value diff_rmax and the first maximal value diff_cmax and a threshold value of setting judge whether the original value of current sampling meets the datum renewal condition.Wherein, the 3rd threshold value is set according to the result of reality debugging in design process, can no longer change after setting.If the difference of the second maximal value diff_rmax and the first maximal value diff_cmax does not surpass the 3rd threshold value, illustrate that the sampling original value of this moment does not meet the datum renewal condition, need resampling.
Steps A 207: the wrong report point is arranged, force to upgrade a secondary standard.
When the absolute value of the difference of the second maximal value diff_rmax and the first maximal value diff_cmax during greater than the 3rd threshold value set, illustrate that currency is the original value that does not have touch condition, current touch is the wrong report point, do not carry out touch operation this moment, and need to force to upgrade a secondary standard, thereby eliminate the wrong report point and recover correct benchmark.
Step S208: regularly upgrade benchmark.
If no touch is every through the predetermined time interval, the original value of current sampling is replaced current reference value to upgrade benchmark.
Ratio value when present embodiment passes through the backup steady state (SS) between the original value of touch-screen neighbouring sample point sampling, ratio value when powering on and after powering between the original value of each sampled point sampling and the ratio value of backup are compared, the correctness of judgment standard, so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.
Embodiment 3:
In the present embodiment, eigenwert is the original value of each sampled point sampling of touch-screen.See also shown in Figure 6ly, be the process flow diagram of the datum renewal method of the embodiment of the invention 3 touch-screens.The method comprises the steps:
Step S301: steady state (SS) sampling, the original value of each sampled point sampling and backup when obtaining steady state (SS).
In this step, when being in steady state (SS), touch-screen to each sampled point sampling, obtains the original value of each sampled point sampling of steady state (SS), back up this original value, as the reference quantity of datum renewal, so that the touch control chip when reality detects, can get access to correct reference value rapidly and accurately.The original value back-up storage is in the Flash of touch control chip Memory in the present embodiment.Present embodiment need not to carry out complicated calculations, directly with the original value of sampling as the backup eigenwert.
The below describes for example.If the original value that capacitance touch screen is sampled when steady state (SS) is as shown in the table, wherein the first behavior sampled point is numbered, the original value of second each sampled point of behavior:
The original value of table 9 steady state (SS) sampling
| Numbering | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Original value | 2100 | 2050 | 1900 | 1950 | 2010 | 2200 | 1920 | 2010 | 2300 | 2100 |
This moment, the touch control chip backed up reference data in Flash Memory, the original value of touch-screen neighbouring sample point sampling is stored among the Flash Memory during with steady state (SS), namely back up original value back_diff[i]=S[i], back_diff[i wherein] be abbreviated as B[i], as shown in the table:
Table 10 backup original value
| Numbering | B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 |
| Backup value | 2100 | 2050 | 1900 | 1950 | 2010 | 2200 | 1920 | 2010 | 2300 |
The foundation of this backup has dual mode, a kind of is before touch-screen dispatches from the factory, factory does not touch on guaranteeing screen and when being in steady state (SS), it is poor that current reference value is done, obtain back_diff[i], another kind is not calibrate when dispatching from the factory, and the automatic learning by software in the product use procedure obtains, and it is comparatively complicated that this mode is compared first kind of way.
Step S302: the sampling that powers on, the original value of each sampled point sampling is set up benchmark when obtaining powering on.
In this step, after touch-screen powers on, to the sampling of each sampled point, the original value of the sampling that obtains powering on, with the original value of the sampling that powers on as reference value to set up benchmark.
If system shielded water is arranged before powering on, and the original value of sampling for the first time when powering on is as shown in the table, will gets access to wrong benchmark after powering on so:
The original value of sampling when table 11 powers on
| Numbering | S0 | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Original value | 2100 | 2050 | 2000 | 2250 | 2130 | 2200 | 1920 | 2010 | 2300 | 2100 |
Step S303: the original value in the time of will powering on is done poor with the backup original value and is taken absolute value, and finds out the maximal value in the absolute value.
Present embodiment judges by comparison the power on original value of current each sampled point of benchmark and the similarity degree between the backup original value among the Flash Memory whether current benchmark is correct.Specifically compare its similarity degree by both being done mode poor and that take absolute value.In this step, do original value and the backup original value among the table 10Flash Memory of the time sampling of powering in the table 11 poor and get its absolute value, find out the maximal value in the absolute value, as shown in the table:
Table 12 absolute value
| Absolute value | 0 | 0 | 100 | 300 | 120 | 0 | 0 | 0 | 0 | 0 |
Step S304: whether judge this maximal value greater than first threshold, if, execution in step S305, otherwise, illustrate that benchmark is correct, finish this flow process, undertaken by normal touch workflow.
In this step, judge by a threshold value of relatively maximal value and setting whether current benchmark is correct.Wherein, first threshold is set according to the result of reality debugging in design process, can no longer change after setting.
Step S305: current benchmark is incorrect.
Maximal value illustrates that greater than first threshold at this moment current benchmark is incorrect.
Step S306: judged whether touch, if, execution in step S307, otherwise, execution in step S308.
When current benchmark is incorrect, continue to judge whether touch is arranged on the touch-screen.Specifically can judge by the following method:
To each sampled point sampling, obtain the original value of current sampling, the original value that deducts current sampling with current reference value obtains difference;
Judge that whether this difference is less than the Second Threshold of setting;
If this difference then is judged to be no touch less than the Second Threshold of setting, otherwise, be judged to be touch.
Wherein, Second Threshold is set according to the result of reality debugging in design process, can no longer change after setting.
Step S307: the variation of the original value of the current sampling of Real Time Monitoring, when meeting the datum renewal condition, upgrades the original value of current sampling benchmark.
When touch-screen has touch, need the variation of the original value of the current sampling of Real Time Monitoring, when the original value of current sampling meets the datum renewal condition, illustrate that current original value is more suitable for doing the reference amount, need to upgrade benchmark at once, wrong before benchmark is substituted.The datum renewal condition can be set according to actual conditions, be not limited to a kind of, original value that for example can be by calculating current sampling, reference value are respectively and the difference between the backup original value, if the original value of current sampling is less with the difference of backup original value than reference value with the difference of backup original value, and when the variable quantity between these two differences surpasses a setting value, think that then the original value of current sampling meets the datum renewal condition, be more suitable in doing benchmark, at this moment renewable benchmark.Concrete grammar is as shown in Figure 7:
Steps A 301: judge whether that benchmark is incorrect and touch is arranged, if, execution in step A302, otherwise, finish this flow process, undertaken by normal touch workflow.
Steps A 302: sample, obtain the original value of current each sampled point.
This step obtains the original value rawdata[i of current each sampled point to each sampled point sampling].
Steps A 303: do poor with the backup original value current original value, reference value respectively and take absolute value.
Do poor with the backup original value original value of each sampled point of current touch-screen sampling and take absolute value, be i.e. diff_c[i]=Abs (rawdata[i]-back_base[i]); And do the reference value of each sampled point of touch-screen and backup original value poor and take absolute value, be i.e. diff_r[i]=Abs (refdata[i]-back_diff[i]).
Steps A 304: find out respectively two groups of maximal values in the absolute value.
This step counts respectively two groups of maximal values in the absolute difference, wherein diff_c[i] in maximal value be the first maximal value diff_cmax, diff_r[i] in maximal value be the second maximal value diff_rmax.
Steps A 305: whether judge the first maximal value less than the second maximal value, if, execution in step A306, otherwise, execution in step A302 returned.
In this step, as the first maximal value diff_cmax during less than the second maximal value diff_rmax, illustrate that current original value is progressively near backup value; Otherwise, illustrate that the sampling original value of this moment does not improve, need resampling.
Steps A 306: whether judge the absolute value of the second maximal value and the first peaked difference greater than the 3rd threshold value, if, execution in step A307, otherwise, execution in step A302 returned.
In this step, the absolute value of the difference by further comparison the second maximal value diff_rmax and the first maximal value diff_cmax and a threshold value of setting judge whether the original value of current sampling meets the datum renewal condition.Wherein, the 3rd threshold value is set according to the result of reality debugging in design process, can no longer change after setting.If the difference of the second maximal value diff_rmax and the first maximal value diff_cmax does not surpass the 3rd threshold value, illustrate that the sampling original value of this moment does not meet the datum renewal condition, need resampling.
Steps A 307: the wrong report point is arranged, force to upgrade a secondary standard.
When the absolute value of the difference of the second maximal value diff_rmax and the first maximal value diff_cmax during greater than the 3rd threshold value set, illustrate that currency is the original value that does not have touch condition, current touch is the wrong report point, do not carry out touch operation this moment, and need to force to upgrade a secondary standard, thereby eliminate the wrong report point and recover correct benchmark.Step S308: regularly upgrade benchmark.
If no touch is every through the predetermined time interval, the original value of current sampling is replaced current reference value to upgrade benchmark.
The original value of each sampled point sampling of touch-screen when present embodiment passes through the backup steady state (SS), the original value of each sampled point sampling and the original value of backup are compared when powering on and after powering on, the correctness of judgment standard, so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.
Embodiment 4:
Present embodiment provides a kind of datum renewal system of touch-screen, and as shown in Figure 8, this system comprises: sampling unit 1, computing unit 2, backup units 3, reference value are set up unit 4, judging unit 5, reference value updating block 6 and monitoring unit 7.Wherein, sampling unit 1 is used for each sampled point sampling, the original value that obtains sampling; Computing unit 2 is used for obtaining according to the raw calculation of steady state (SS) sampling the eigenwert of each sampled point of touch-screen, when powering on according to touch-screen and the raw calculation of each time point sampling after powering on obtain the current eigenwert of each sampled point of touch-screen, and do current eigenwert and backup eigenwert poor and take absolute value, find out the maximal value in the absolute value; Eigenwert when backup units 3 is used for the backup steady state (SS) obtains backing up eigenwert; When reference value is set up unit 4 and is used for touch-screen powered on the original value of sampling as reference value to set up benchmark; Whether the maximal value that the sampling when judging unit 5 powers on according to touch-screen for judgement calculates is greater than the first threshold of setting, if maximal value is greater than the first threshold of setting, judge that then current benchmark is incorrect, and judge when current benchmark is incorrect whether touch is arranged on the touch-screen; When reference value updating block 6 is used on and the touch-screen incorrect at current benchmark no touch, regularly upgrade benchmark, and, touch-screen incorrect at current benchmark has and touches and the original value of current sampling upgrades benchmark when meeting the datum renewal condition; When monitoring unit 7 has touch for and touch-screen incorrect at current benchmark, the variation of the original value of the current sampling of Real Time Monitoring.
In the present embodiment, computing unit 2 also obtains difference for the original value that deducts current sampling with current reference value, and difference is used for judging whether touch is arranged on the touch-screen.Judging unit 5 is by judging whether difference judges less than the Second Threshold of setting whether touch is arranged on the touch-screen, if difference then is judged to be no touch less than the Second Threshold of setting, otherwise, be judged to be touch.
Eigenwert can be ratio value between the original value of difference value, touch-screen neighbouring sample point sampling between the original value of touch-screen neighbouring sample point sampling or the original value of each sampled point sampling of touch-screen.When eigenwert was ratio value between the original value of touch-screen neighbouring sample point sampling, ratio value was for amplifying a ratio of setting between the original value of neighbouring sample point sampling of multiple.
Difference value can back-up storage in the nonvolatile memory of touch control chip, such as Flash Memory, PROM, EAROM, EPROM or EEPROM etc., the difference value back-up storage is in the Flash of touch control chip Memory in the present embodiment.
Present embodiment by the backup touch-screen steady state (SS) the time eigenwert, sampled value and backup eigenwert are compared, and the correctness of judgment standard is so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark.
Embodiment 5:
Present embodiment provides a kind of touch control terminal, and this touch control terminal comprises the datum renewal system of the touch-screen that embodiment 4 provides.
Present embodiment by the backup touch-screen steady state (SS) the time eigenwert, sampled value and backup eigenwert are compared, the correctness of judgment standard, so that the touch control chip is when reality detects, can get access to rapidly and accurately correct reference value, thereby correctly upgrade benchmark, make the touch accuracy rate of this touch control terminal high, the user experiences.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. the datum renewal method of a touch-screen is characterized in that, described method comprises the steps:
When touch-screen is in steady state (SS), to the sampling of each sampled point, obtain the original value of steady state (SS) sampling, obtain eigenwert and the backup of described each sampled point of touch-screen according to the raw calculation of described steady state (SS) sampling, obtain backing up eigenwert;
Touch-screen powers on, to the sampling of each sampled point, the original value of the sampling that obtains powering on, with the original value of the described sampling that powers on as reference value setting up benchmark, and obtain the upper electrical characteristic values of described each sampled point of touch-screen according to the described raw calculation that powers on sampling;
Do described upper electrical characteristic values and backup eigenwert poor and take absolute value, find out the maximal value in the described absolute value;
Whether judge described maximal value greater than the first threshold of setting, if described maximal value judges then that greater than the first threshold of setting current benchmark is incorrect;
Whether if current benchmark is incorrect, judging has touch on the touch-screen, if no touch is then regularly upgraded benchmark, if touch is arranged, benchmark is upgraded in the then variation of the original value of the current sampling of Real Time Monitoring when the original value of current sampling meets the datum renewal condition.
2. the datum renewal method of touch-screen according to claim 1 is characterized in that, describedly judges whether have the step of touch to be specially on the touch-screen:
To each sampled point sampling, obtain the original value of current sampling, the original value that deducts current sampling with current reference value obtains difference;
Judge that whether described difference is less than the Second Threshold of setting;
If described difference then is judged to be no touch less than the Second Threshold of setting, otherwise, be judged to be touch.
3. the datum renewal method of touch-screen according to claim 1 is characterized in that, if described no touch, the step of then regularly upgrading benchmark is specially:
If no touch is every through the predetermined time interval, the original value of current sampling is replaced current reference value to upgrade benchmark.
4. the datum renewal method of touch-screen according to claim 1 is characterized in that, the variation of the original value of the current sampling of described Real Time Monitoring, and the step of upgrading benchmark when the original value of current sampling meets the datum renewal condition is specially:
To each sampled point sampling, obtain the original value of current sampling, obtain the current eigenwert of described each sampled point of touch-screen according to the raw calculation of described current sampling, and calculate the reference characteristic value of described each sampled point of touch-screen according to current reference value
Do described current eigenwert and backup eigenwert poor and take absolute value, find out the maximal value in the described absolute value, obtain the first maximal value; Do described reference characteristic value and backup eigenwert poor and take absolute value, find out the maximal value in the described absolute value, obtain the second maximal value;
When described the first maximal value during less than the second maximal value, judge that whether the absolute value of described the second maximal value and the first peaked difference is greater than the 3rd threshold value of setting, if the absolute value of described difference is greater than the 3rd threshold value of setting, then the original value of current sampling is replaced current reference value to upgrade benchmark, and judge current touch as the wrong report point, do not carry out touch operation.
5. the datum renewal method of touch-screen according to claim 1, it is characterized in that described eigenwert is ratio value between the original value of difference value, touch-screen neighbouring sample point sampling between the original value of touch-screen neighbouring sample point sampling or the original value of each sampled point sampling of touch-screen.
6. the datum renewal method of touch-screen according to claim 5, it is characterized in that, when described eigenwert was ratio value between the original value of touch-screen neighbouring sample point sampling, described ratio value was for amplifying a ratio of setting between the original value of neighbouring sample point sampling of multiple.
7. the datum renewal method of each described touch-screen is characterized in that according to claim 1～6, and described backup eigenwert is stored in the nonvolatile memory.
8. the datum renewal system of a touch-screen is characterized in that, comprising:
Sampling unit is used for to each sampled point sampling the original value that obtains sampling;
Computing unit, be used for obtaining according to the raw calculation of steady state (SS) sampling the eigenwert of each sampled point of touch-screen, when powering on according to touch-screen and the raw calculation of each time point sampling after powering on obtain the current eigenwert of each sampled point of touch-screen, and do current eigenwert and backup eigenwert poor and take absolute value, find out the maximal value in the described absolute value;
Backup units, the eigenwert when being used for the backup steady state (SS) obtains backing up eigenwert;
Reference value is set up the unit, the original value that is used for sampling when touch-screen powered on as reference value to set up benchmark;
Judging unit, whether the maximal value that the sampling when powering on according to touch-screen for judgement calculates is greater than the first threshold of setting, if described maximal value is judged that then current benchmark is incorrect, and is judged when current benchmark is incorrect whether touch is arranged on the touch-screen greater than the first threshold of setting;
The reference value updating block when being used on and the touch-screen incorrect at current benchmark no touch, regularly upgrades benchmark, and, touch-screen incorrect at current benchmark has and touch and the original value of current sampling upgrades benchmark when meeting the datum renewal condition;
Monitoring unit, when for and touch-screen incorrect at current benchmark touch being arranged, the variation of the original value of the current sampling of Real Time Monitoring.
9. the datum renewal system of touch-screen according to claim 8 is characterized in that, described computing unit also obtains difference for the original value that deducts current sampling with current reference value, and described difference is used for judging whether touch is arranged on the touch-screen;
Described judging unit is by judging whether described difference judges less than the Second Threshold of setting whether touch is arranged on the touch-screen, if described difference then is judged to be no touch less than the Second Threshold of setting, otherwise, be judged to be touch.
10. the datum renewal system of touch-screen according to claim 8 is characterized in that,
Described computing unit also is used for doing reference characteristic value and backup eigenwert poor and taking absolute value, and finds out the maximal value in the described absolute value;
When the maximal value that described judging unit also is used for doing poor absolute value in current eigenwert and backup eigenwert is done maximal value in the poor absolute value less than reference characteristic value and backup eigenwert, judge that whether the absolute value of described two peaked differences is greater than the 3rd threshold value of setting, if the absolute value of described difference is greater than the 3rd threshold value of setting, then the original value of current sampling is replaced current reference value to upgrade benchmark, and judge current touch as the wrong report point, do not carry out touch operation.
11. the datum renewal system of touch-screen according to claim 8, it is characterized in that described eigenwert is ratio value between the original value of difference value, touch-screen neighbouring sample point sampling between the original value of touch-screen neighbouring sample point sampling or the original value of each sampled point sampling of touch-screen.
12. the datum renewal system of touch-screen according to claim 11, it is characterized in that, when described eigenwert was ratio value between the original value of touch-screen neighbouring sample point sampling, described ratio value was for amplifying a ratio of setting between the original value of neighbouring sample point sampling of multiple.
13. the datum renewal system of each described touch-screen is characterized in that according to claim 8～12, described backup eigenwert back-up storage is in nonvolatile memory.
14. a touch control terminal is characterized in that, described touch control terminal comprises the datum renewal system of each described touch-screen of claim 8～13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210527725.7A CN102968217B (en) | 2012-12-07 | 2012-12-07 | The datum renewal method of touch-screen, system and touch control terminal |
| PCT/CN2013/085830 WO2014086211A1 (en) | 2012-12-07 | 2013-10-23 | Method, system, and touch terminal for updating standard of touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210527725.7A CN102968217B (en) | 2012-12-07 | 2012-12-07 | The datum renewal method of touch-screen, system and touch control terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102968217A true CN102968217A (en) | 2013-03-13 |
| CN102968217B CN102968217B (en) | 2016-01-20 |
Family
ID=47798390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210527725.7A Active CN102968217B (en) | 2012-12-07 | 2012-12-07 | The datum renewal method of touch-screen, system and touch control terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102968217B (en) |
| WO (1) | WO2014086211A1 (en) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014086211A1 (en) * | 2012-12-07 | 2014-06-12 | 深圳市汇顶科技股份有限公司 | Method, system, and touch terminal for updating standard of touch screen |
| CN104252399A (en) * | 2013-06-27 | 2014-12-31 | 中兴通讯股份有限公司 | Calibration processing method and device of touch screen, touch screen and terminal |
| CN104423753A (en) * | 2013-09-10 | 2015-03-18 | 深圳市启望科文技术有限公司 | Capacitive touch detection method, device and mobile terminal |
| CN104423679A (en) * | 2013-09-04 | 2015-03-18 | 奕力科技股份有限公司 | Baseline calibration method and system applied to touch panel |
| CN104750331A (en) * | 2013-12-27 | 2015-07-01 | 禾瑞亚科技股份有限公司 | Touch device and touch judgment method thereof |
| CN104808957A (en) * | 2015-03-31 | 2015-07-29 | 长治市华光光电科技集团有限公司 | Intelligent adjustment method for touch control all-in-one machine screen luminance |
| CN105068688A (en) * | 2015-08-12 | 2015-11-18 | Tcl移动通信科技（宁波）有限公司 | Touchscreen position reporting method and apparatus |
| CN105511655A (en) * | 2014-09-26 | 2016-04-20 | 宸鸿科技(厦门)有限公司 | Touch panel and detection method of same |
| WO2016184191A1 (en) * | 2016-01-18 | 2016-11-24 | 中兴通讯股份有限公司 | Reset calibration determining method, apparatus and terminal |
| CN106605237A (en) * | 2016-11-24 | 2017-04-26 | 深圳市汇顶科技股份有限公司 | Button reference updating method, button reference updating module and terminal equipment |
| CN106610755A (en) * | 2016-11-02 | 2017-05-03 | 广州视源电子科技股份有限公司 | Touch screen calibration method and device |
| CN107624176A (en) * | 2017-07-31 | 2018-01-23 | 深圳市汇顶科技股份有限公司 | Touch detecting method, device, touch-screen and electric terminal |
| CN107807747A (en) * | 2016-09-09 | 2018-03-16 | 意象无限股份有限公司 | touch system and touch detection method thereof |
| CN108073329A (en) * | 2018-01-31 | 2018-05-25 | 北京集创北方科技股份有限公司 | Touch device and its driving method and terminal |
| CN108694005A (en) * | 2018-06-29 | 2018-10-23 | 上海海栎创微电子有限公司 | A kind of true 2 detection algorithms based on self-capacitance technology |
| WO2018232695A1 (en) * | 2017-06-22 | 2018-12-27 | 深圳市汇顶科技股份有限公司 | Method and apparatus for updating current reference value of touch screen, touch screen and electronic terminal |
| CN109164948A (en) * | 2018-09-29 | 2019-01-08 | 维沃移动通信有限公司 | A kind of touch screen electrostatic capacitance supplementary device, method and mobile terminal |
| CN110337629A (en) * | 2017-07-04 | 2019-10-15 | 深圳市汇顶科技股份有限公司 | The detection method of the environment temperature of touch detection circuit, electronic equipment and touch screen |
| CN110398682A (en) * | 2018-04-19 | 2019-11-01 | 京东方科技集团股份有限公司 | Touch-control test device and touch-control test method |
| CN111064842A (en) * | 2018-10-16 | 2020-04-24 | 华为技术有限公司 | Method, terminal and storage medium for recognizing special-shaped touch |
| CN111078046A (en) * | 2019-12-05 | 2020-04-28 | 北京集创北方科技股份有限公司 | Detection method and device and electronic equipment |
| WO2020147105A1 (en) * | 2019-01-18 | 2020-07-23 | 深圳市汇顶科技股份有限公司 | Touch control screen temperature state detection method and apparatus, touch control chip and electronic device |
| US10733411B2 (en) | 2017-06-13 | 2020-08-04 | Shenzhen GOODIX Technology Co., Ltd. | Optical biometric identification module, display apparatus, and electronic device |
| CN111897449A (en) * | 2020-06-19 | 2020-11-06 | 上海美仁半导体有限公司 | Anti-interference processing method, system and chip for touch signal and household appliance |
| CN112273732A (en) * | 2020-11-19 | 2021-01-29 | 嘉兴飞童电子科技有限公司 | ASIC chip of electronic cigarette silicon microphone and processing method of ASIC chip |
| US10915615B2 (en) | 2017-02-13 | 2021-02-09 | Shenzhen GOODIX Technology Co., Ltd. | Sensing device and terminal device |
| CN112533102A (en) * | 2021-02-10 | 2021-03-19 | 深圳市汇顶科技股份有限公司 | Method for determining capacitance reference, and device and equipment for determining capacitance reference |
| CN113093932A (en) * | 2020-01-08 | 2021-07-09 | 北京小米移动软件有限公司 | Touch detection processing method and device, terminal equipment and storage medium |
| US11287453B2 (en) | 2017-09-19 | 2022-03-29 | Shenzhen GOODIX Technology Co., Ltd. | Method and system for measuring power-on reset time |
| US11910148B2 (en) | 2021-02-10 | 2024-02-20 | Shenzhen GOODIX Technology Co., Ltd. | Method for determining capacitance reference, apparatus for determining capacitance reference, and device |
| WO2024140156A1 (en) * | 2022-12-29 | 2024-07-04 | 华为技术有限公司 | Touch panel integrated circuit and operation method therefor, display module, and electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100097355A1 (en) * | 2008-10-20 | 2010-04-22 | Suhyuk Jang | Touch sensing device and method for correcting output thereof |
| CN101963873A (en) * | 2010-10-08 | 2011-02-02 | 展触光电科技股份有限公司 | Method for setting and calibrating capacitive-type touch panel capacitance base value |
| CN101976135A (en) * | 2010-07-27 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Calibrating method of touch screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968217B (en) * | 2012-12-07 | 2016-01-20 | 深圳市汇顶科技股份有限公司 | The datum renewal method of touch-screen, system and touch control terminal |
-
2012
- 2012-12-07 CN CN201210527725.7A patent/CN102968217B/en active Active
-
2013
- 2013-10-23 WO PCT/CN2013/085830 patent/WO2014086211A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100097355A1 (en) * | 2008-10-20 | 2010-04-22 | Suhyuk Jang | Touch sensing device and method for correcting output thereof |
| CN101976135A (en) * | 2010-07-27 | 2011-02-16 | 苏州瀚瑞微电子有限公司 | Calibrating method of touch screen |
| CN101963873A (en) * | 2010-10-08 | 2011-02-02 | 展触光电科技股份有限公司 | Method for setting and calibrating capacitive-type touch panel capacitance base value |
Cited By (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014086211A1 (en) * | 2012-12-07 | 2014-06-12 | 深圳市汇顶科技股份有限公司 | Method, system, and touch terminal for updating standard of touch screen |
| CN104252399A (en) * | 2013-06-27 | 2014-12-31 | 中兴通讯股份有限公司 | Calibration processing method and device of touch screen, touch screen and terminal |
| WO2014205934A1 (en) * | 2013-06-27 | 2014-12-31 | 中兴通讯股份有限公司 | Touchscreen calibration processing method, apparatus, touchscreen, and terminal |
| CN104423679A (en) * | 2013-09-04 | 2015-03-18 | 奕力科技股份有限公司 | Baseline calibration method and system applied to touch panel |
| TWI497374B (en) * | 2013-09-04 | 2015-08-21 | Ili Technology Corp | Baseline calibration for touch panel and system thereof |
| CN104423753B (en) * | 2013-09-10 | 2017-07-04 | 深圳市启望科文技术有限公司 | A kind of capacitance touch detection method, device and mobile terminal |
| CN104423753A (en) * | 2013-09-10 | 2015-03-18 | 深圳市启望科文技术有限公司 | Capacitive touch detection method, device and mobile terminal |
| CN104750331A (en) * | 2013-12-27 | 2015-07-01 | 禾瑞亚科技股份有限公司 | Touch device and touch judgment method thereof |
| CN104750331B (en) * | 2013-12-27 | 2018-03-02 | 禾瑞亚科技股份有限公司 | Touch device and touch judgment method thereof |
| CN105511655A (en) * | 2014-09-26 | 2016-04-20 | 宸鸿科技(厦门)有限公司 | Touch panel and detection method of same |
| CN105511655B (en) * | 2014-09-26 | 2018-08-07 | 宸鸿科技(厦门)有限公司 | Touch panel and its method for detecting |
| CN104808957B (en) * | 2015-03-31 | 2018-11-20 | 长治市华光光电科技集团有限公司 | The intelligent adjusting method of touch-control all-in-one machine screen intensity |
| CN104808957A (en) * | 2015-03-31 | 2015-07-29 | 长治市华光光电科技集团有限公司 | Intelligent adjustment method for touch control all-in-one machine screen luminance |
| CN105068688A (en) * | 2015-08-12 | 2015-11-18 | Tcl移动通信科技（宁波）有限公司 | Touchscreen position reporting method and apparatus |
| CN105068688B (en) * | 2015-08-12 | 2018-09-18 | Tcl移动通信科技（宁波）有限公司 | A kind of the report point methods and its device of touch screen |
| WO2016184191A1 (en) * | 2016-01-18 | 2016-11-24 | 中兴通讯股份有限公司 | Reset calibration determining method, apparatus and terminal |
| CN106980402A (en) * | 2016-01-18 | 2017-07-25 | 中兴通讯股份有限公司 | Reset the determination methods and device, terminal of calibration |
| CN106980402B (en) * | 2016-01-18 | 2022-01-07 | 中兴通讯股份有限公司 | Method and device for judging reset calibration and terminal |
| CN107807747A (en) * | 2016-09-09 | 2018-03-16 | 意象无限股份有限公司 | touch system and touch detection method thereof |
| CN106610755A (en) * | 2016-11-02 | 2017-05-03 | 广州视源电子科技股份有限公司 | Touch screen calibration method and device |
| CN106610755B (en) * | 2016-11-02 | 2019-09-20 | 广州视源电子科技股份有限公司 | Touch screen calibration method and device |
| WO2018094673A1 (en) * | 2016-11-24 | 2018-05-31 | 深圳市汇顶科技股份有限公司 | Key reference updating method and module, and terminal device |
| US11054947B2 (en) | 2016-11-24 | 2021-07-06 | Shenzhen GOODIX Technology Co., Ltd. | Key reference updating method and module, and terminal device |
| CN106605237A (en) * | 2016-11-24 | 2017-04-26 | 深圳市汇顶科技股份有限公司 | Button reference updating method, button reference updating module and terminal equipment |
| US10915615B2 (en) | 2017-02-13 | 2021-02-09 | Shenzhen GOODIX Technology Co., Ltd. | Sensing device and terminal device |
| US10733411B2 (en) | 2017-06-13 | 2020-08-04 | Shenzhen GOODIX Technology Co., Ltd. | Optical biometric identification module, display apparatus, and electronic device |
| CN109564481A (en) * | 2017-06-22 | 2019-04-02 | 深圳市汇顶科技股份有限公司 | Update method, device, touch screen and the electric terminal of touch screen present reference value |
| WO2018232695A1 (en) * | 2017-06-22 | 2018-12-27 | 深圳市汇顶科技股份有限公司 | Method and apparatus for updating current reference value of touch screen, touch screen and electronic terminal |
| CN110337629A (en) * | 2017-07-04 | 2019-10-15 | 深圳市汇顶科技股份有限公司 | The detection method of the environment temperature of touch detection circuit, electronic equipment and touch screen |
| CN107624176A (en) * | 2017-07-31 | 2018-01-23 | 深圳市汇顶科技股份有限公司 | Touch detecting method, device, touch-screen and electric terminal |
| CN107624176B (en) * | 2017-07-31 | 2020-08-28 | 深圳市汇顶科技股份有限公司 | Touch detection method and device, touch screen and electronic terminal |
| US11287453B2 (en) | 2017-09-19 | 2022-03-29 | Shenzhen GOODIX Technology Co., Ltd. | Method and system for measuring power-on reset time |
| CN108073329A (en) * | 2018-01-31 | 2018-05-25 | 北京集创北方科技股份有限公司 | Touch device and its driving method and terminal |
| US11698407B2 (en) | 2018-04-19 | 2023-07-11 | Boe Technology Group Co., Ltd. | Touch-control test apparatus and touch-control test method |
| CN110398682A (en) * | 2018-04-19 | 2019-11-01 | 京东方科技集团股份有限公司 | Touch-control test device and touch-control test method |
| CN108694005A (en) * | 2018-06-29 | 2018-10-23 | 上海海栎创微电子有限公司 | A kind of true 2 detection algorithms based on self-capacitance technology |
| CN109164948B (en) * | 2018-09-29 | 2021-07-13 | 维沃移动通信有限公司 | Touch screen electrostatic capacitance supplementing device and method and mobile terminal |
| CN109164948A (en) * | 2018-09-29 | 2019-01-08 | 维沃移动通信有限公司 | A kind of touch screen electrostatic capacitance supplementary device, method and mobile terminal |
| CN111064842B (en) * | 2018-10-16 | 2021-11-19 | 华为技术有限公司 | Method, terminal and storage medium for recognizing special-shaped touch |
| CN111064842A (en) * | 2018-10-16 | 2020-04-24 | 华为技术有限公司 | Method, terminal and storage medium for recognizing special-shaped touch |
| WO2020147105A1 (en) * | 2019-01-18 | 2020-07-23 | 深圳市汇顶科技股份有限公司 | Touch control screen temperature state detection method and apparatus, touch control chip and electronic device |
| CN111727420A (en) * | 2019-01-18 | 2020-09-29 | 深圳市汇顶科技股份有限公司 | Method and device for detecting temperature state of touch screen, touch chip and electronic equipment |
| US11543299B2 (en) | 2019-01-18 | 2023-01-03 | Shenzhen GOODIX Technology Co., Ltd. | Method, apparatus, touch chip and electronic device for determining temperature status of touch screen |
| CN111078046A (en) * | 2019-12-05 | 2020-04-28 | 北京集创北方科技股份有限公司 | Detection method and device and electronic equipment |
| US11989374B2 (en) | 2019-12-05 | 2024-05-21 | Chipone Technology (Beijing) Co., Ltd. | Detection method, device, and electronic equipment |
| CN111078046B (en) * | 2019-12-05 | 2022-04-08 | 北京集创北方科技股份有限公司 | Detection method and device and electronic equipment |
| CN113093932B (en) * | 2020-01-08 | 2024-04-09 | 北京小米移动软件有限公司 | Touch detection processing method and device, terminal equipment and storage medium |
| CN113093932A (en) * | 2020-01-08 | 2021-07-09 | 北京小米移动软件有限公司 | Touch detection processing method and device, terminal equipment and storage medium |
| CN111897449A (en) * | 2020-06-19 | 2020-11-06 | 上海美仁半导体有限公司 | Anti-interference processing method, system and chip for touch signal and household appliance |
| CN112273732A (en) * | 2020-11-19 | 2021-01-29 | 嘉兴飞童电子科技有限公司 | ASIC chip of electronic cigarette silicon microphone and processing method of ASIC chip |
| CN112533102B (en) * | 2021-02-10 | 2021-06-18 | 深圳市汇顶科技股份有限公司 | Method for determining capacitance reference, and device and equipment for determining capacitance reference |
| US11910148B2 (en) | 2021-02-10 | 2024-02-20 | Shenzhen GOODIX Technology Co., Ltd. | Method for determining capacitance reference, apparatus for determining capacitance reference, and device |
| CN112533102A (en) * | 2021-02-10 | 2021-03-19 | 深圳市汇顶科技股份有限公司 | Method for determining capacitance reference, and device and equipment for determining capacitance reference |
| WO2024140156A1 (en) * | 2022-12-29 | 2024-07-04 | 华为技术有限公司 | Touch panel integrated circuit and operation method therefor, display module, and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014086211A1 (en) | 2014-06-12 |
| CN102968217B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102968217A (en) | Reference updating method and system for touch screen as well as touch terminal | |
| CN103677452B (en) | Capacitive touch screen calibration method and capacitive touch device | |
| CN101963873B (en) | Method for setting and calibrating capacitive-type touch panel capacitance base value | |
| US10296141B2 (en) | Device, and adjustable parameter adjustment method for device | |
| CN105388992A (en) | Fingerprint recognition method and apparatus and terminal | |
| CN103955331A (en) | Display processing method and device of application icon | |
| CN104808930A (en) | Operating element control method | |
| CN104360734A (en) | Terminal operating method | |
| CN107087075B (en) | Prompting method based on screen fingerprint identification and mobile terminal | |
| US10712870B2 (en) | Method for improving fault tolerance of touchscreen and touchscreen terminal | |
| CN104536643A (en) | Icon dragging method and terminal | |
| JP2014106829A (en) | Touch panel apparatus | |
| CN103294583B (en) | A kind of method of control terminal screen and mobile terminal | |
| CN104881174A (en) | Method and device for dynamically adjusting sensitivity of touch screen | |
| CN113126815A (en) | Key response control method and device, terminal equipment and storage medium | |
| CN104035702A (en) | Method for preventing intelligent terminal operation error and intelligent terminal | |
| US20160139734A1 (en) | Input device | |
| JP6202874B2 (en) | Electronic device, calibration method and program | |
| CN110442266B (en) | Object recognition method, object recognition device, electronic equipment and storage medium | |
| CN106980402B (en) | Method and device for judging reset calibration and terminal | |
| KR102013592B1 (en) | Touch sensing system and touch sensing method | |
| CN105549773A (en) | Underwater touch detection system and underwater touch detection method | |
| CN104951160A (en) | Information processing method and electronic equipment | |
| CN105159555B (en) | A kind of customer equipment controlling method and user equipment | |
| CN103279264A (en) | Electronic device and input operation management method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |