CN106055146B - Dynamic adjusting method for analog-digital conversion parameters of touch panel - Google Patents
Dynamic adjusting method for analog-digital conversion parameters of touch panel Download PDFInfo
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- G—PHYSICS
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The invention discloses a dynamic adjustment method for analog-digital conversion parameters of a touch panel, which comprises the steps of firstly calculating the number of induction frames after a touch object leaves the touch panel; when the number of the induction frames is smaller than a first preset value, compensating the read induction signals every m induction frames; when the number of the induction frames is larger than a first preset value, compensating the read induction signals every n induction frames; wherein m < n; therefore, the frequency of compensating the first induction picture frames is higher than the frequency of compensating the second induction picture frames when the touch object leaves from the touch panel, so that the analog-digital conversion parameters can be dynamically adjusted, and discontinuous use caused by slowing down the identification speed of the touch object due to the compensation of each induction picture frame is avoided.
Description
The present invention is divisional application, parent application day are as follows: on 2 27th, 2012；Application No. is:
201210045692.2；Denomination of invention are as follows: the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel
Technical field
The present invention relates to a kind of Analog-digital Converter parameter regulation means of touch panel, espespecially a kind of to be used for touch surface
The Analog-digital Converter dynamic state of parameters method of adjustment of plate.
Background technique
It, can be in booting or sleep pattern switchback to ensure that touch panel avoids the interference of ambient noise as far as possible when in use
When normal mode, analog parameter adjustment (Rough Calibration) program is carried out, includes Analog-digital Converter parameter
(Offset), the adjustment of a reference value (Base) etc. analog feature numerical value.
Above-mentioned Analog-digital Converter parameter be when touch panel object touch and when generating analogue inductive signal, touch surface
The controller of plate can go out corresponding inductive signal (ADC RAW DATA) according to current Analog-digital Converter Parameter Switch.Through studying
It was found that controller Analog-digital Converter parameter will receive radiofrequency signal when touch panel is used for such as mobile phone radio-frequency unit
It interferes and is changed, that is, be possible to be raised and lowered；If wherein Analog-digital Converter parameter is interfered because of radiofrequency signal and is increased, can
So that the inductive signal converted out according to it can decline；Conversely, can then increase.
It will be more than the inductive signal progress of this induction critical value since touching control panel controller can set an induction critical value
Report point；Therefore, when the raising of Analog-digital Converter parameter, then probably allow the influence value of inductive signal caused by script noise low
It drops and is lower than the induction critical value, and report by mistake a little.In addition, the same problem may occur at touch-control in addition to radiofrequency signal interference
Among the big situation of panel circumstance of temperature difference.
As shown in the above description, unless radio frequency interference or the opportunity point of the big generation of circumstance of temperature difference are opened just at touch panel
Machine or just by sleep pattern convert normal mode when, be likely to the analog parameter adjustment programme by touch panel script, quickly
Ground analog feature parameter is recalled into regime values；If but occurring in the normal mode, then to rely on and be set as the period originally
Property by shelves correction program, be generally set as in individual induction picture frame time in adjust single simulation number conversion parameter gear,
Analog-digital Converter is slowly recalled into undisturbed preceding regime values, but the wrong report point situation during adjustment is still deposited
?.From the point of view of user's setting-out movement, such problem will will cause the missing discontinuously to break；Therefore this technical problem
Really it causes practical touch-control using ill effect, needs further to improve it.
Summary of the invention
Therefore main purpose of the present invention is providing a kind of Analog-digital Converter dynamic state of parameters method of adjustment of touch panel, with
It solves under touch panel Normal Mode Operation, changes excessive Analog-digital Converter parameter because of ambient noise interference, and come not
And recall to it is undisturbed before regime values, caused wrong report coordinate or the problem of do not report coordinate.
Technical way used in above-mentioned purpose to be reached is to enable aforementioned analog number conversion parameter dynamic adjusting method
Include:
Calculate touch-control object from touch panel leave after induction picture frame number；
When induction picture frame number is less than the first preset value, to the influence value every the m induction read inductive signals of picture frame
It compensates；
When induction picture frame number is greater than the first preset value, to the influence value every the n induction read inductive signals of picture frame
It compensates；Wherein m < n.
The present invention received multiple inductions picture frame after touching object leaves from touch panel, enables to former influence charts
Frame compensates frequency relatively to the frequency that picture frame compensates is incuded at latter several for height, is so dynamically adapted the simulation number
Word conversion parameter, and avoid incuding the recognition speed that picture frame compensates and drags slow touching object to every, it causes using not
Continuous sense.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the flow chart of the first preferred embodiment of the invention.
Fig. 2 is Fig. 1 for self-tolerant scan method progress one Analog-digital Converter dynamic state of parameters adjustment schematic diagram.
Fig. 3 is Fig. 1 for another Analog-digital Converter dynamic state of parameters adjustment schematic diagram of self-tolerant scan method progress.
Fig. 4 is the flow chart of the second preferred embodiment of the invention.
Fig. 5 and Fig. 6 is that an Analog-digital Converter dynamic state of parameters of the Fig. 4 for a mutual capacitance type scan method adjusts schematic diagram.
Fig. 7 is the flow chart of third preferred embodiment of the present invention.
Fig. 8 is that an Analog-digital Converter dynamic state of parameters of the Fig. 7 for a mutual capacitance type scan method adjusts schematic diagram.
Fig. 9 is that another Analog-digital Converter dynamic state of parameters of the Fig. 7 for a mutual capacitance type scan method adjusts schematic diagram.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is implemented with reference to the accompanying drawing
Example is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but it is not intended as
Limitation of the invention.
Cooperate schema and presently preferred embodiments of the present invention below, the present invention is further explained to reach predetermined goal of the invention institute
The technological means taken.
It is the stream of first preferred embodiment of Analog-digital Converter dynamic state of parameters method of adjustment of the present invention referring initially to Fig. 1
Cheng Tu, it includes have:
Default induction critical value S10；
Inductive signal is read, and judges whether the influence value of inductive signal is more than induction critical value S11；
Inductive signal is compensated, is more than the induction critical value in the influence value of the inductive signal, then with w times of Analog-digital Converter
Parameter gear compensates S12 to the inductive signal, wherein w > 1.
It is touch panel 1 with self-tolerant scan method generation self-tolerant induction picture frame 10, below sincerely please refer to Fig. 2
Detailed description when picture frame 10 is further incuded for self-tolerant for dynamic adjusting method of the present invention.
Since self-tolerant scan method is to issue to swash thorn signal and reception inductive signal (internal loopback) to each line of induction
And self-tolerant induction picture frame 10 is generated, therefore critical value is counted to each setting of the line of induction 11 one, and compare each line of induction
Whether 11 inductive signal adds up to add 1 if having more than a preset induction critical value；So continuously judging several self-tolerants
After incuding picture frame 10, if it has been more than the counting critical value that the single line of induction is accumulative, with w times of Analog-digital Converter parameter gear pair
The current Analog-digital Converter parameter of this line of induction is adjusted.For example, if the X3 sense of continuous 6 self-tolerants induction picture frame
Answering the received inductive signal of line institute is (- 300), and the preset induction critical value of the X3 line of induction is (- 100), therefore the X3 feels
The cumulative number 6 for answering line has been more than to count critical value 5, then is carried out with w times of Analog-digital Converter parameter gear to the X3 line of induction
Adjustment.If single times of Analog-digital Converter parameter gear can adjust 10 influence values, sense of the X3 line of induction to be adjusted by noise jamming
It is (- 100) that induction signal, which is no more than induction critical value, can generate the 7th and the 8th self-tolerant induction picture frame, adjust separately each
10 times of Analog-digital Converter parameter gears adjust Analog-digital Converter parameter, and single compensation induction amount is no more than a reference value and sense
The difference of critical value is answered, then the X3 line of induction can approach -100 in the inductive signal of the 8th self-tolerant influence chart, without the sense of low mistake
Critical value (- 100) are answered, inductive signal is allowed to be compensated；Or as shown in figure 3, generating the 7th to 10 (totally 4) self-tolerant
Incude picture frame 10 to adjust respectively with 5 times of Analog-digital Converter parameter gears, then also can incude picture frame sweep time in 5 self-tolerants
The interior adjustment completed compensation noise induction signal and be no more than induction critical value；Therefore comparing individual existing induction picture frame with single times
The adjustment of Analog-digital Converter parameter gear at least needs to generate 20 self-tolerants induction picture frame times, the present invention really can in compared with
Few number completes compensation, and has effects that normal value before accelerating the Analog-digital Converter parametric regression not interfere with.
Again referring to Fig. 4, being the process of second preferred embodiment of Analog-digital Converter dynamic state of parameters method of adjustment of the present invention
Figure, it includes have:
Read inductive signal S20；
Take the difference S21 of the inductive signal and an a reference value (base)；
Inductive signal is compensated with the first class according to the difference, next step is carried out after meeting first condition
S22；Wherein first class includes j times of Analog-digital Converter parameter gear；And
S23 is compensated to inductive signal with the second class；Wherein second class includes k times of Analog-digital Converter ginseng
Number gear, and j > k > 1.
The second preferred embodiment of aforementioned present invention it is default comprising different multiples Analog-digital Converter parameter gear first and
Second class or multiple class, then according to size of the difference between inductive signal and a reference value, selection with first or second class or
Other class compensate inductive signal, can adjust several times Analog-digital Converter parameter gear in fewer number whereby, add
The fast Analog-digital Converter parametric regression do not interfere with before normal value.
Please refer to shown in Fig. 5 and Fig. 6, above-mentioned the second preferred embodiment of dynamic adjusting method can be to self-tolerant influence chart
The Analog-digital Converter parameter of each line of induction of frame is adjusted, and the simulation of each induction point of picture frame 2 can be also incuded to mutual capacitance type
Digital conversion parameter is adjusted, and wherein for mutual capacitance type induction picture frame 2 each induction point Analog-digital Converter parameter into
Row adjustment, then each induction point is equally preset with critical value.It is illustrated as an example of mutual capacitance type induction picture frame 20 below.
Assuming that interior have multiple class, each class includes the Analog-digital Converter parameter gear of different multiples, such as following table
It is shown:
| Class | Multiple (single times: influence value) |
| 1st class | 10 times (1:10) |
| 2nd class | 05 times (1:10) |
| 3rd class | 04 times (1:10) |
| ... | ... |
| X class | 01 times (1:10) |
Assuming that the inductive signal of X3/Y3 induction point is -300, and it is more than noise critical value (- 100), therefore has met first
Part, and execute the present embodiment.The difference (d=300) of a reference value (0) Yu inductive signal (- 300) is taken first, then according to the big of difference
Small selection 1-X class appropriate is adjusted current Analog-digital Converter parameter, due to the inductive signal of this induction point is-
300, therefore must increase to a reference value (0), and the more maximum multiple Analog-digital Converter parameter gear of difference compare it is much bigger, therefore it is excellent
The 1st class is selected to carry out downgrading current Analog-digital Converter parameter.Before lower mutual capacitance type induction picture frame generates, with the first class into
Row adjustment, then current Analog-digital Converter parameter can be downgraded, and make the X3/Y3 induction point of lower mutual capacitance type induction picture frame
Inductive signal is moving upward 100 (10*10), and is -300+100=-200.Since the inductive signal -200 of induction point is still low
In noise critical value (- 100), therefore it is still unsatisfactory for first condition, and again with first grade before mutual capacitance type induction picture frame under generation
It is secondary to be adjusted, enable the inductive signal of the X3/Y3 induction point of lower second mutual capacitance type induction picture frame by promoting 100 (10*10),
And it is -200+100=-100, and it is no longer below noise critical value (- 100), but met first condition, then with a reference value (0)
The second class is reselected with the difference of the inductive signal (- 100) of X3/Y3 induction point to be adjusted, that is, adjusts 5 times of simulation number
Word conversion parameter gear, allow lower third mutual capacitance type induction picture frame X3/Y3 induction point inductive signal by promoting 50 (5*
10) it is, -100+50=-50, since inductive signal is not yet close to a reference value (0), therefore needs again according to a reference value (0) and X3/
The size of the difference selection of the inductive signal (- 50) of Y3 induction point is adjusted again with second or X class, wherein the X class
Include s times of Analog-digital Converter parameter gear, and from the corresponding different difference range of the second class, second class is corresponding
Difference range is greater than the corresponding difference range of X class, and s >=1 j > k >.If it is corresponding that current difference has fallen into X class
Difference range is then adjusted with X class, then since it includes single times of Analog-digital Converter parameter gears, therefore can only be to every
The inductive signal for opening the induction point of mutual capacitance type induction picture frame increases 10 upwards, is therefore must take a long time (5 mutual capacitance type senses
Answer picture frame generation time) fine tuning is to close to a reference value (0).Even if in this way, the present embodiment still can it is more existing individual induction picture frame with
Single times of Analog-digital Converter parameter gear adjustment at least needs to generate 20 self-tolerant induction picture frame times, has and accelerates the simulation
Before digital conversion parameter recurrence does not interfere with the effect of normal value.
By first and second above-mentioned preferred embodiment it is found that the two is that improvement enables noise jamming change Analog-digital Converter
Parameter influences the too low situation of inductive signal, quickly recalls to normal value, the difference is that being compensation sense after the first preferred embodiment adjustment
Induction signal is no more than critical value, and the second preferred embodiment then compensates inductive signal to close to a reference value；Therefore first compared with
Good embodiment can adjust its Analog-digital Converter after compensation allows inductive signal to be no more than critical value, then with the second preferred embodiment
Parameter makes its inductive signal closer to a reference value.
It please refers to shown in Fig. 7, is the flow chart of dynamic adjusting method third preferred embodiment of the present invention, it includes have:
It calculates touch-control object and leaves the induction picture frame number S30 after touch panel；
When incuding picture frame number less than the first preset value, the inductive signal of reading is compensated every m induction picture frame numbers
S31；And
It is greater than the first preset value when incuding picture frame number, S32 is compensated to the inductive signal of reading every n；Wherein m <
n。
And the dynamic compensation method or first and second embodiment knot of first or second embodiments then can be used in compensation method
The dynamic compensation method of conjunction, details are not described herein.
It please refers to shown in Fig. 8, it is assumed that a touching object leaves to next touching isoelectric membrane is total from touch panel and receives
100 induction picture frames, then can preset 50 such as above-mentioned steps as the first preset value, preceding 50 (1-50) every m induction picture frames into
The compensation of row first and/or second embodiment, then 50 then compensate every n induction picture frames, due to m < n, therefore preceding 50
Compensation frequency relatively after 50 compensation frequencies come high, it is whole spend the compensation time compare it is existing to individual incude picture frame into
Row compensation comes low.
In addition, enabling the second preset value (60) to be greater than first default as shown in figure 9, one second preset value can further be preset
It is worth (25), wherein being greater than the induction picture frame number of the second preset value, then with interval a induction picture frame numbers to the inductive signal of reading
It compensates, wherein n < a.By taking Fig. 7 as an example, 1-25 carry out the benefit of first and/or second embodiment every m induction picture frames
Repay, rear 26-60 be to be compensated every n induction picture frames, then after 61-100 then with every a induction picture frames into
Row compensation, equally allow former induction picture frames relatively after several frequencies that compensate of induction picture frames it is higher, cooperation first and/or the
Two embodiments can reach compensation effect, without dragging the speed compensated slowly.
By set forth above first to 3rd embodiment it is found that the present invention is adapted dynamically Analog-digital Converter parameter, enable
After it is changed by noise jamming, normal value is recalled in acceleration, and is mended to the inductive signal of the induction picture frame generated in adjustment
It repays；Avoid Analog-digital Converter parameter because ambient noise interference is excessively acute, so that according to the inductive signal report point extremely of its conversion；It is
With the present invention can accelerate the correctness of coordinate return when inductive signal is abnormal.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, anyone skilled in the art, not
It is detached from the range of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention to above
Any simple modification, equivalent change and modification made by embodiment, all of which are still within the scope of the technical scheme of the invention.
Claims (19)
1. a kind of Analog-digital Converter dynamic state of parameters method of adjustment of touch panel, which is characterized in that include:
It calculates touch-control object and leaves the induction picture frame number after touch panel；
When induction picture frame number is less than the first preset value, according to an a reference value to every the read inductions letter of m induction picture frame numbers
Number influence value compensate；
When induction picture frame number is greater than the first preset value, to the influence value every the n induction read inductive signal of picture frame number into
Row compensation；Wherein m < n.
2. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 1, which is characterized in that into
One step presets one second preset value, and the second preset value is enabled to be greater than the first preset value, wherein being greater than the induction picture frame of the second preset value
Number then compensates the influence value every a induction read inductive signals of picture frame number, wherein n < a.
3. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 1 or 2, feature exist
In wherein it includes following steps that the influence value of the inductive signal of described pair of reading, which compensates:
Default induction critical value；
The influence value of the inductive signal is read, and judges whether the influence value of the inductive signal is more than that the induction is critical
Value；
The influence value for compensating the inductive signal, when the influence value of the inductive signal is more than the induction critical value, with w times
Analog-digital Converter parameter gear compensates the influence value of the inductive signal, wherein w > 1.
4. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 3, which is characterized in that
The influence value step that the compensation inductive signal is executed in single induction picture frame time, wherein giving the inductive signal
The induction amount of influence value compensation is no more than difference between a reference value and induction critical value.
5. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 4, which is characterized in that
It is further included after the influence value step of the compensation inductive signal:
Judge whether the influence value of the inductive signal is less than the induction critical value；
If so, calculating the difference between the influence value of the inductive signal and a reference value；
It is compensated according to the difference with influence value of first class to the inductive signal, it is laggard until meeting first condition
Row next step；Wherein first class includes j times of Analog-digital Converter parameter gear；
It is compensated with influence value of second class to the inductive signal；Wherein the second gear time includes k times and simulates number
Word conversion parameter gear, and j > k > 1.
6. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 5, which is characterized in that institute
State first condition is to judge whether the influence value of the inductive signal is more than noise critical value；If through being compensated with the first class
The influence value of inductive signal afterwards then continues to compensate with the first class still above noise critical value, described until being no more than
Until noise critical value.
7. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 6, which is characterized in that into
One step includes an X class, wherein the X class includes s times of Analog-digital Converter parameter gear, and with the second class
Corresponding different difference range, the corresponding difference range of second class are greater than the corresponding difference range of X class, and j > k
S >=1 >；
In it is described step is compensated with influence value of second class to the inductive signal after further include:
Judge the difference whether be corresponding X class difference range；
If the difference has fallen into difference range corresponding to X class, select the X class to the inductive signal
Influence value compensates.
8. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 3, which is characterized in that institute
State is to be preset with the induction respectively for multiple lines of induction of self-tolerant induction picture frame in default induction critical value step
Critical value.
9. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 8, which is characterized in that institute
It is the inductive signal for reading each line of induction of the self-tolerant induction picture frame in the step of stating the influence value for reading inductive signal
Influence value, and further include:
Default one counts critical value；
Judge that the influence value of the inductive signal more than after the induction critical value, then adds up this line of induction primary；
If it has been more than the counting critical value that any line of induction is accumulative, the influence value step of the compensation inductive signal is executed.
10. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 3, which is characterized in that
It is described in the multiple induction points for incuding picture frame for a mutual capacitance type are preset with respectively in the default induction critical value step
Each induction point of the mutual capacitance type induction picture frame is read in the step of induction critical value, the influence value for reading inductive signal
The influence value of inductive signal.
11. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 1 or 2, feature exist
In wherein compensating to the influence value of the inductive signal of reading includes following steps:
Read the influence value of the inductive signal；
Take the difference between the influence value of the inductive signal and a reference value；
It is compensated according to the difference with influence value of first class to the inductive signal, it is laggard until meeting first condition
Row next step；Wherein first class includes j times of Analog-digital Converter parameter gear；
It is compensated with influence value of second class to the inductive signal；Wherein the second gear time includes k times and simulates number
Word conversion parameter gear, and j > k > 1.
12. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 11, which is characterized in that
Whether the first condition is to judge the influence value of the inductive signal more than a noise critical value, if through with the progress of the first class
The influence value of compensated inductive signal then continues to compensate with the first class, until not still above the noise critical value
Until the noise critical value.
13. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 12, which is characterized in that
An X class is further includeed, wherein the X class includes s times of Analog-digital Converter parameter gear, and and second gear
The different difference range of secondary correspondence, the corresponding difference range of second class are greater than the corresponding difference range of X class, and j
S >=1 > k >；
In it is described step is compensated with influence value of second class to the inductive signal after further include:
Judge the difference whether be corresponding X class difference range；
If the difference has fallen into difference range corresponding to X class, select the X class to the inductive signal
Influence value compensates.
14. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 11, which is characterized in that
Described read is the influence value that the inductive signal of the line of induction is read in self-tolerant induction picture frame in inductive signal step.
15. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 11, which is characterized in that
It is the induction that the inductive signal of induction point is read in mutual capacitance type induction picture frame in the influence value step for reading inductive signal
Value.
16. a kind of Analog-digital Converter dynamic state of parameters method of adjustment of touch panel, which is characterized in that include:
Preset multiple Analog-digital Converter parameter class and an induction critical value；
Read induction picture frame；
Whether the influence value for judging the inductive signal of the induction picture frame is more than the induction critical value；If so, adjustment is several
Analog-digital Converter parameter class.
17. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 16, which is characterized in that
Wherein:
It is continuously to read multiple self-tolerant induction picture frames in the reading induction picture frame step；
Whether the influence value of the inductive signal for judging the induction picture frame is more than the induction critical value step, is just respective
The induction critical value that the influence value of each line of induction of appearance formula induction picture frame is corresponding is compared, if being more than, adds up
Once；If the accumulative self-tolerant induction picture frame quantity for meeting this judgement counts critical value up to one, current simulation numeral is turned
Parameter class is changed, several Analog-digital Converter parameter class are once adjusted.
18. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 16, which is characterized in that
Wherein:
It is described to preset in multiple Analog-digital Converter parameter class and induction critical value step, multiple Analog-digital Converter parameter shelves
Secondary is corresponding different difference ranges；
It is to read mutual capacitance type induction picture frame in the reading induction picture frame step, wherein mutual capacitance type induction picture frame includes
The influence value of multiple induction points；
Whether the influence value of the inductive signal for judging the induction picture frame is more than the induction critical value step, is with regard to each sense
The corresponding induction critical value of the influence value that should be put is compared, if being more than, takes the influence value and a base of the induction point
Difference between quasi- value judges that the difference corresponds to difference range, then joins according to multiple Analog-digital Converters of the difference range
Number class adjusts several Analog-digital Converter parameter class.
19. the Analog-digital Converter dynamic state of parameters method of adjustment of touch panel according to claim 18, which is characterized in that
Wherein:
Described preset in multiple Analog-digital Converter parameter class and induction critical value step increases a minimal difference range newly；
Whether the influence value of the inductive signal for judging the induction picture frame is more than in the induction critical value step, is into one
Step judges whether the difference between the influence value of current induction point and a reference value falls into minimal difference range, if then only adjusting
Whole Analog-digital Converter parameter class.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101105214 | 2012-02-17 | ||
| TW101105214A TWI464637B (en) | 2012-02-17 | 2012-02-17 | Dynamic adjusting method of adc transferring parameter of touch panel |
| CN201210045692.2A CN103257734B (en) | 2012-02-17 | 2012-02-27 | Dynamic adjusting method for analog-digital conversion parameters of touch panel |
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| CN103049158B (en) * | 2012-12-31 | 2016-03-16 | 深圳市汇顶科技股份有限公司 | A kind of touch detecting method of capacitive touch screen and system |
| TWI503725B (en) * | 2013-10-09 | 2015-10-11 | Ili Technology Corp | Circuit for measuring mutual and self capacitance and capacitive touch panel having the same |
| TWI489365B (en) * | 2013-11-01 | 2015-06-21 | Holtek Semiconductor Inc | Capacitive touch sensor and switching method between self capacitance and mutual capacitance therefor |
| CN104375696B (en) * | 2014-10-10 | 2017-08-29 | 长芯盛（武汉）科技有限公司 | The apparatus and method of touch screen induction value self-correcting |
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| CN101825975A (en) * | 2009-03-03 | 2010-09-08 | 联咏科技股份有限公司 | Method for setting touch parameter in real time, and related device and system thereof |
| CN102053744A (en) * | 2009-11-03 | 2011-05-11 | 无锡华润矽科微电子有限公司 | Touch screen control device, touch screen control circuit and touch screen control method |
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| TWI231453B (en) * | 2003-01-20 | 2005-04-21 | Htc Corp | Method and apparatus for avoiding pressing inaccuracies on a touch panel |
| KR100683249B1 (en) * | 2005-06-16 | 2007-02-15 | 주식회사 애트랩 | Touch Sensor and Signal Generation Method thereof |
| TWI405105B (en) * | 2009-11-30 | 2013-08-11 | Kye Systems Corp | Signal handling method of compound touch panel |
| US8411066B2 (en) * | 2010-01-05 | 2013-04-02 | 3M Innovative Properties Company | High speed noise tolerant multi-touch touch device and controller therefor |
| US8174273B2 (en) * | 2010-01-07 | 2012-05-08 | 3M Innovative Properties Company | Capacitance measurement circuit with dynamic feedback |
| US8493356B2 (en) * | 2010-04-22 | 2013-07-23 | Maxim Integrated Products, Inc. | Noise cancellation technique for capacitive touchscreen controller using differential sensing |
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| CN101825975A (en) * | 2009-03-03 | 2010-09-08 | 联咏科技股份有限公司 | Method for setting touch parameter in real time, and related device and system thereof |
| CN102053744A (en) * | 2009-11-03 | 2011-05-11 | 无锡华润矽科微电子有限公司 | Touch screen control device, touch screen control circuit and touch screen control method |
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| CN103257734A (en) | 2013-08-21 |
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| CN106055146A (en) | 2016-10-26 |
| CN103257734B (en) | 2016-07-06 |
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