CN107943337A - The charging correction system of touch pad and its bearing calibration - Google Patents
The charging correction system of touch pad and its bearing calibration Download PDFInfo
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- CN107943337A CN107943337A CN201610889258.0A CN201610889258A CN107943337A CN 107943337 A CN107943337 A CN 107943337A CN 201610889258 A CN201610889258 A CN 201610889258A CN 107943337 A CN107943337 A CN 107943337A
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- benchmark
- power
- touch pad
- correction
- power supply
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of charging correction system and its bearing calibration of touch pad, mainly first carries out discharge and recharge to benchmark touch pad, then count add up when the number of accumulative benchmark power-up period reaches benchmark power supply number after benchmark add up power-on time.Then on the basis of benchmark adds up power-on time, in correction power-up period repeatedly to the discharge and recharge of one of those operation touch pads.Finally count when adding up power-on time after benchmark it is interior add up after correction power-up period number, number is electrically charged so as to obtaining benchmark of each operation touch pad in the case where benchmark adds up power-on time, reach the requirement of compounding practice touch pad external environment parameter to change benchmark power-on time, wherein benchmark power-up period is more than correction power-up period.
Description
Technical field
A kind of charging the present invention relates to touch pad corrects system and its bearing calibration, refers in particular to one kind and is touched by benchmark
The charging correction system of control pad correct operation touch pad and its bearing calibration.
Background technology
With the progress that science and technology is with rapid changepl. never-ending changes and improvements, the prosperity of network is flooded with the various electronic devices such as refrigerator, cold air
The life of people, and electronic device is now all based on touch, and be required in touch circuit by test so that it is actual
It is upper to be applied to more smooth out without easily going wrong on electronic device.
Wherein, touch pad is tested in practice, and touch pad is generally viewed as capacitance (or external larger capacitance),
Therefore during testing, by a power supply module to touch-control pad (putting) electricity, the number so as to trying to achieve discharge and recharge, and by filling
Whether the number of electric discharge judges the touch pad by touch-control.However, in the prior art, due to being all that identical touch pad is surveyed
Examination, thus generally when being tested under needing for varying environment, appropriate touch pad can not be adjusted out according to environmental condition
And have appropriate capacitance, and then in practice client can not adjustment go out to be adapted to the touch-control state of the environment so that applied to above-mentioned
During electronic device, the problem of tending to have error and cause the inconvenience in consumer's use, therefore, the prior art still possesses improved sky
Between.
The content of the invention
The technical problems to be solved by the invention are in view of in the test method of existing touch pad, and generally having can not be because
The problem of answering environment to adjust touch pad, there is provided a kind of charging correction system of touch pad and its bearing calibration, it is mainly provided with base
Quasi- touch pad and operation touch pad, and the power supply of benchmark touch pad, then the power-on time to be obtained are corrected repeatedly by elder generation
Touch pad is operated, recoverable operates touch pad to achieve the purpose that to adjust benchmark touch pad with environment.
To achieve these goals, the charging the present invention provides a kind of touch pad corrects system, is touched comprising multiple operations
Control pad, a benchmark touch pad, a power supply module and a statistical module, those operation touch pads have one first capacitance, base
Quasi- touch pad has one second capacitance, and the second capacitance is more than the first capacitance.Power supply module is electrically connected at those operations
Touch pad and benchmark touch pad, to be supplied repeatedly benchmark touch pad with a benchmark power-up period under a benchmark measurement pattern
Electricity, benchmark power-up period includes a benchmark powering phase and a benchmark interruption of power supply stage, so as to making benchmark touch pad in benchmark
Powering phase charges to a setting magnitude of voltage from a starting voltage value, and discharges in the benchmark interruption of power supply stage from magnitude of voltage is set
Return to starting voltage value.Power supply module simultaneously further repeatedly grasps those to correct power-up period under a correction mode with one
Make the power supply of one of touch pad, correction power-up period includes a correction powering phase and a correction interruption of power supply stage, on making
State one of those operation touch pads and charge to setting magnitude of voltage, and the cut-off in correction from starting voltage value in correction powering phase
The electric stage returns to starting voltage value from magnitude of voltage electric discharge is set.Statistical module is electrically connected at power supply module, and is equipped with a benchmark
Power supply number, under benchmark measurement pattern, to count when the number of accumulative benchmark power-up period reaches benchmark power supply time
Number when add up after a benchmark add up power-on time.
Wherein, benchmark power-up period is more than correction power-up period, and in correction mode, statistical module counts are after benchmark
Add up during accumulative power-on time after the number for correcting power-up period, so as to adding up to supply in benchmark as each touch pad that operates
A benchmark under the electric time is electrically charged number..
Under the basis of above-mentioned necessary technology means, the charging correction system of above-mentioned touch pad also comprising it is as described below compared with
Good attached technological means.Statistical module includes a counter, a timer and a buffer, and counter is equipped with benchmark power supply time
Number, is electrically connected at power supply module, and the number under benchmark measurement pattern, to count when accumulative benchmark power-up period reaches
A reference count signal is sent out when powering number to benchmark.Timer is electrically connected at counter, to receive benchmark
During count signal, calculate benchmark and add up power-on time, and send out one and represent the timing signal that benchmark adds up power-on time.Temporarily
Storage is electrically connected at timer, to receive timing signal, adds up power-on time so as to storage benchmark.Wherein, in straightening die
In formula, timer reads benchmark and adds up power-on time, and timer calculate add up power-on time to benchmark when, counting module system
Meter add up when adding up power-on time after benchmark after the number for correcting power-up period, it is secondary so as to being electrically charged as benchmark
Number.
Under the basis of above-mentioned necessary technology means, the charging correction system of above-mentioned touch pad also comprising it is as described below compared with
Good attached technological means.Timer is made of multiple T-shaped flip-flops, and buffer is made of multiple D-type flip-flops.
Based on above-mentioned purpose, technical way of the present invention also provides a kind of charging correction side of touch pad
Method, the charging applied to above-mentioned touch pad corrects system, and is measured comprising step (a) to step (d), step (a) in benchmark
Powered repeatedly to benchmark touch pad with benchmark power-up period under pattern, benchmark power-up period is included in benchmark powering phase and benchmark
Disconnected powering phase, so as to making benchmark touch pad charge to setting magnitude of voltage from starting voltage value in benchmark powering phase, and in base
The quasi- interruption of power supply stage returns to starting voltage value from magnitude of voltage electric discharge is set.Step (b) is counted and worked as under benchmark measurement pattern
The number of accumulative benchmark power-up period reach benchmark power supply number when add up after benchmark add up power-on time.Step
(c) school is included to the power supply of one of those operation touch pads, correction power-up period repeatedly to correct power-up period under correction mode
Positive powering phase and correction interruption of power supply stage, so as to making one of those above-mentioned operation touch pads correct powering phase from starting
Magnitude of voltage charges to setting magnitude of voltage, and returns to starting voltage value from magnitude of voltage electric discharge is set in the correction interruption of power supply stage.Step
Suddenly (d) statistics add up when adding up power-on time after benchmark after correct power-up period number, so as to as each behaviour
Make benchmark of the touch pad in the case where benchmark adds up power-on time and be electrically charged number.Wherein, benchmark power-up period is more than correction power supply week
Phase.
The technical effects of the invention are that：
After the technical way using the charging correction system of touch pad provided by the present invention and its bearing calibration,
Due to powering to benchmark touch pad with benchmark number of powering under benchmark measurement pattern and try to achieve benchmark and add up power-on time, then with
Benchmark adds up the number that power-on time obtains operation touch pad, therefore under various circumstances can be directly by adjusting benchmark touch pad
Capacitance come adjust operation touch pad sensitivity.
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.
Brief description of the drawings
Fig. 1 is the block schematic diagram of the charging correction system of the touch pad of display present pre-ferred embodiments；
Fig. 2 is the power supply module of display present pre-ferred embodiments and the schematic diagram of statistical module；
Fig. 3 is the timer of display present pre-ferred embodiments and the schematic diagram of buffer；
Fig. 4 is the flow diagram of the charging bearing calibration of the touch pad of display present pre-ferred embodiments.
Wherein, reference numeral
The charging correction system of 1 touch pad
11 operation touch pads
12 benchmark touch pads
13 power supply modules
131 controlling switches
132 current sources
133 nmos switches
134 comparators
14 statistical modules
141 counters
142 timers
143 buffers
S1 comparison signals
S2 reference count signals
S3 timing signals
Embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings：
Since the charging of touch pad provided by the present invention is corrected in system and its bearing calibration, it combines embodiment not
Victory is enumerated, therefore this is no longer going to repeat them, is only enumerated a preferred embodiment and is illustrated.
Also referring to Fig. 1 to Fig. 3, Fig. 1 is the charging correction system of the touch pad of display present pre-ferred embodiments
Block schematic diagram.Fig. 2 is the power supply module of display present pre-ferred embodiments and the schematic diagram of statistical module.Fig. 3 is to show this
The timer of invention preferred embodiment and the schematic diagram of buffer.
As shown in the figure, the touch pad of present pre-ferred embodiments charging correction system 1 include it is multiple operation touch pads 11,
One benchmark touch pad 12, a power supply module 13 and a statistical module 14, operation touch pad 11 carry out touch-control for a user, and
In general, operation touch pad 11 has one first capacitance.
Benchmark touch pad 12 has one second capacitance, and the second capacitance is more than the first capacitance, and in general, the second capacitance
It is N times of the first capacitance, and N is typically greater than 1 integer or decimal, it is depending on the design in practice.
Power supply module 13 is electrically connected at those operation touch pads 11 and benchmark touch pad 12, wherein, power supply module 13
It is such as relaxation oscillation (Relaxation Oscillator) circuit, and includes multiple controlling switches 131, multiple current sources
132nd, a nmos switch 133 and a comparator 134, each current source 132 are correspondingly electrically connected with each controlling switch 131, and
And it is electrically connected at those operation touch pads 11, benchmark touch pad 12 and comparator 134, comparator 134 and is electrically connected at each control
System switch 131 and nmos switch 133.
Statistical module 14 is electrically connected at power supply module 13, and present pre-ferred embodiments are electrically connected at comparator 134, and
Statistical module 14 includes a counter 141, a timer 142 and a buffer 143, and counter (counter) 141 electrically connects
It is connected to comparator 134.Timer (timer) 142 is electrically connected at counter 141, and is made of multiple T-shaped flip-flops, temporarily
Storage (timer) 143 is electrically connected at timer 142, and is made of multiple D-type flip-flops.
Power supply module 13 is repeatedly supplying benchmark touch pad 12 with a benchmark power-up period under a benchmark measurement pattern
Electricity, benchmark power-up period includes a benchmark powering phase and a benchmark interruption of power supply stage, so as to making benchmark touch pad 12 in base
Quasi- powering phase charges to a setting magnitude of voltage from a starting voltage value, and is put in the benchmark interruption of power supply stage from magnitude of voltage is set
Electricity returns to starting voltage value.
For example, in present pre-ferred embodiments, in benchmark powering phase, the controlling switch 131 marked in figure
Be switched on and cause figure marked in current source 132 power to benchmark touch pad 12 so that the capacitance of benchmark touch pad 12 by
Charging, and after the voltage of benchmark touch pad 12 reaches the setting magnitude of voltage set by comparator 134, it can make comparator 134 will
One comparison signal S1 is sent to the controlling switch 131 marked in figure and nmos switch 133 so that controlling switch 131 is closed
And open nmos switch 133, hence into the benchmark interruption of power supply stage make benchmark touch pad 12 discharge nmos switch 133 and
Starting voltage value (being, for example, 0V) is discharged to by setting magnitude of voltage.Therefore, supplied repeatedly defined in present pre-ferred embodiments
Electricity, that is, instigate the voltage of benchmark touch pad 12 to charge to setting magnitude of voltage from starting voltage value, is being discharged to starting voltage value again
Recharge is once.
In addition, power supply module 13 and further under a correction mode with one correction power-up period repeatedly to those grasp
Make the power supply of one of touch pad 11, correction power-up period includes a correction powering phase and a correction interruption of power supply stage, so as to making
One of those above-mentioned operation touch pads 11 charge to setting magnitude of voltage in correction powering phase from starting voltage value, and in correction
Disconnected powering phase returns to starting voltage value from magnitude of voltage electric discharge is set.Similarly, the above-mentioned power supply to those operation touch pads 11
With the pattern all same of the power supply to benchmark touch pad 12, therefore repeat no more.
Statistical module 14 is equipped with benchmark power supply number (being, for example, 50 times), under benchmark measurement pattern, to count
Add up when the number of accumulative benchmark power-up period reaches benchmark power supply number after a benchmark add up power-on time (example
Such as it is 10ms).Specifically, counter 141 is equipped with above-mentioned benchmark power supply number, and under benchmark measurement pattern, counts
A reference count is sent out when the number of accumulative benchmark power-up period reaches benchmark power supply number (i.e. accumulative to power 50 times)
Signal S2, the mode of its statistics number e.g. often receive the comparison signal S1 gone out transmitted by a comparator 134 and add up
Once.
Timer 142 calculates benchmark and adds up power-on time, and send out a generation when receiving reference count signal S2
Table benchmark adds up the timing signal S3 of power-on time.Storage benchmark adds up power-on time after buffer 143 receives timing signal S3.
Wherein, the difference reaction of bulky capacitor and small capacitances is when charged state, the larger (charge and discharge of bulky capacitor required cycle
The electric time is longer), therefore, benchmark power-up period is more than correction power-up period.In correction mode, statistical module 14, which counts, to be gone through
Add up when adding up power-on time through benchmark after the number of correction power-up period (statistical is for example similarly and often receives
The comparison signal S1 gone out transmitted by comparator 134 adds up once), so as to adding up as each operation touch pad 11 in benchmark
A benchmark under power-on time is electrically charged number.
Specifically, in correction mode, the benchmark that timer 142 reads stored by buffer 143 adds up power-on time
(also can be considered that stored benchmark is added up power-on time and is sent to timer 142 by buffer 143), and counted in timer 142
When calculation to benchmark adds up power-on time, 142 flip-flop number 141 of timer is counted to be tired out when adding up power-on time after benchmark
Count after correction power-up period number, so as to being electrically charged number as benchmark.
It is noted that after obtaining benchmark and being electrically charged number, number can be electrically charged using benchmark to judge to operate
Whether touch pad 11 is by user's touch-control.For example, if it is 100 that each the benchmark of operation touch pad 11, which is electrically charged number,
It is secondary, and in the case of by user's touch-control, it can make it that operating 11 capacitance of touch pad becomes larger, and therefore, adds up in identical benchmark
Under power-on time, the number that can to count tails off (being, for example, 80 times), and in practice dealer can benchmark be electrically charged
Number sets error rate, is, for example, 5% (5 times), if then all it can determine whether outside 5% error range to there is touch-control.If
It is then to be considered as no touch-control in error range.
In addition, the capacitance of benchmark touch pad 12 can be adjusted according to environmental aspect, or adjusted by benchmark touch pad 12
The quasi- power supply number of integral basis, adds up power-on time and can change benchmark and be electrically charged number so as to change benchmark.For example, can be by one
Capacitance is electrically connected at benchmark touch pad 12, so as to change the capacitance of benchmark touch pad 12, and then adjusts benchmark and adds up to power
Time.One resistance (this resistance can be ground connection or be electrically connected at a voltage source) can be electrically connected at base by another mode
Quasi- touch pad 12, so as to change setting magnitude of voltage and adjust benchmark and add up power-on time.Another mode is that a clock pulse is defeated
Enter circuit and be electrically connected at benchmark touch pad 12, and then directly adjust benchmark according to the clock signal of clock pulse input circuit and add up to supply
Electric time (adjust benchmark power supply number into one).Therefore, whether inputted, be provided to capacitance, resistance or clock pulse
Change benchmark adds up power-on time and measures the different scopes for correcting power-up period to reach.
Also referring to Fig. 1 to Fig. 4, Fig. 4 is the charging bearing calibration of the touch pad of display present pre-ferred embodiments
Flow diagram.As shown in the figure, the charging bearing calibration for the touch pad that present pre-ferred embodiments are provided is applied to above-mentioned
The charging correction system 1 of touch pad, and comprise the steps of：
Step S101：Powered repeatedly to benchmark touch pad 12 with benchmark power-up period under benchmark measurement pattern, benchmark supplies
The electric cycle includes benchmark powering phase and benchmark interruption of power supply stage, so as to making benchmark touch pad 12 in benchmark powering phase from
Beginning magnitude of voltage charges to setting magnitude of voltage, and returns to starting voltage value from magnitude of voltage electric discharge is set in the benchmark interruption of power supply stage.
Step S102：Under benchmark measurement pattern, count when the number of accumulative benchmark power-up period reaches benchmark confession
Add up during electric number after benchmark add up power-on time.
Step S103：Powered repeatedly to one of those operation touch pads 11 under correction mode with correcting power-up period, school
Positive power-up period includes correction powering phase and correction interruption of power supply stage, so as to making one of those above-mentioned operation touch pads 11 exist
Correction powering phase charges to setting magnitude of voltage from starting voltage value, and discharges in the correction interruption of power supply stage from magnitude of voltage is set
Return to starting voltage value.
Step S104：Statistics add up when adding up power-on time after benchmark after correct power-up period number,
Number is electrically charged so as to the benchmark as each operation touch pad in the case where benchmark adds up power-on time.
Specifically, benchmark power-up period is more than correction power-up period, and can further store benchmark in step S102 adds up
Power-on time, in step S103, also adds up power-on time by the benchmark stored by buffer 143 and is sent to timer 142 and makes
142 synchronous counting of timer, and benchmark can be further read in step S104 and adds up power-on time, so that statistics is tired out after benchmark
Count power-on time when add up after correct power-up period number.In addition, remaining above-mentioned steps S101 is to step S104's
Running is identical with the running of the charging correction system 1 of touch pad, therefore repeats no more.
In summary it is described, after using the charging of touch pad provided by the present invention correction system and its bearing calibration,
Due to powering to benchmark touch pad with benchmark number of powering under benchmark measurement pattern and try to achieve benchmark and add up power-on time, then with
Benchmark adds up the number that power-on time obtains operation touch pad, therefore under various circumstances can be directly by adjusting benchmark touch pad
Capacitance come adjust operation touch pad sensitivity.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art and make various corresponding changes and deformation in accordance with the present invention, but these change and become accordingly
Shape should all belong to the protection domain of appended claims of the invention.
Claims (5)
1. the charging correction system of a kind of touch pad, it is characterised in that include：
Multiple operation touch pads, have one first capacitance；
One benchmark touch pad, has one second capacitance, which is more than first capacitance；
One power supply module, is electrically connected at the plurality of operation touch pad and the benchmark touch pad, to measure pattern in a benchmark
Under powered repeatedly to the benchmark touch pad with a benchmark power-up period, which includes a benchmark powering phase and one
The benchmark interruption of power supply stage, so as to making the benchmark touch pad charge to a setting from a starting voltage value in the benchmark powering phase
Magnitude of voltage, and in the benchmark interruption of power supply stage starting voltage value is returned to from setting magnitude of voltage electric discharge；And further to
With a correction power-up period repeatedly to the power supply of one of the plurality of operation touch pad, the correction power-up period bag under a correction mode
Containing a correction powering phase and a correction interruption of power supply stage, so as to making one of above-mentioned the plurality of operation touch pad be supplied in the correction
The electric stage charges to the setting magnitude of voltage from the starting voltage value, and is put in the correction interruption of power supply stage from the setting magnitude of voltage
Electricity returns to the starting voltage value；And
One statistical module, is electrically connected at the power supply module, and equipped with benchmark power supply number, to measure pattern in the benchmark
Under, count add up when the number of the accumulative benchmark power-up period reaches benchmark power supply number after a benchmark tire out
Count power-on time；
Wherein, which is more than the correction power-up period, in the correction mode, the statistical module counts after
The benchmark add up to add up during power-on time after the correction power-up period number, so as to existing as the respectively operation touch pad
The benchmark that the benchmark adds up under power-on time is electrically charged number.
2. the charging correction system of touch pad as claimed in claim 1, it is characterised in that the statistical module includes：
One counter, powers number equipped with the benchmark, is electrically connected at the power supply module, under the benchmark measurement pattern,
Count and send out a reference count signal when the number of the accumulative benchmark power-up period reaches benchmark power supply number；
One timer, is electrically connected at the counter, when receiving the reference count signal, to calculate the benchmark and add up
Power-on time, and send out one and represent the timing signal that the benchmark adds up power-on time；And
One buffer, is electrically connected at the timer, to receive the timing signal, when adding up power supply so as to storing the benchmark
Between；
Wherein, in the correction mode, which reads the benchmark and adds up power-on time, and is calculated in the timer to the base
During the accumulative power-on time of standard, trigger the counters count add up when adding up power-on time after the benchmark after the correction
The number of power-up period, so as to being electrically charged number as the benchmark.
3. the charging correction system of touch pad as claimed in claim 2, it is characterised in that the timer is by multiple T-shaped positive and negative
Device is formed.
4. the charging correction system of touch pad as claimed in claim 2, it is characterised in that the buffer is positive and negative by multiple D types
Device is formed.
5. a kind of charging bearing calibration of touch pad, the charging applied to touch pad as claimed in claim 1 corrects system, its
It is characterized in that, comprises the steps of：
(a) powered repeatedly to the benchmark touch pad with the benchmark power-up period under the benchmark measurement pattern, benchmark power supply week
Phase includes the benchmark powering phase and the benchmark interruption of power supply stage, so as to make the benchmark touch pad the benchmark powering phase from
The starting voltage value charges to the setting magnitude of voltage, and returns to this from setting magnitude of voltage electric discharge in the benchmark interruption of power supply stage
Starting voltage value；
(b) under the benchmark measurement pattern, count when the number of the accumulative benchmark power-up period reaches benchmark power supply time
Number when add up after the benchmark add up power-on time；
(c) one of the plurality of operation touch pad power supply, the correction are supplied repeatedly with the correction power-up period under the correction mode
The electric cycle includes the correction powering phase and the correction interruption of power supply stage, so as to making one of above-mentioned the plurality of operation touch pad exist
The correction powering phase charges to the setting magnitude of voltage from the starting voltage value, and in the correction interruption of power supply stage from the setting
Magnitude of voltage electric discharge returns to the starting voltage value；And
(d) statistics add up when adding up power-on time after the benchmark after the correction power-up period number, so as to work
For the respectively operation touch pad number is electrically charged in the benchmark that the benchmark adds up under power-on time；
Wherein, which is more than the correction power-up period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889258.0A CN107943337A (en) | 2016-10-12 | 2016-10-12 | The charging correction system of touch pad and its bearing calibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889258.0A CN107943337A (en) | 2016-10-12 | 2016-10-12 | The charging correction system of touch pad and its bearing calibration |
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| CN107943337A true CN107943337A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610889258.0A Pending CN107943337A (en) | 2016-10-12 | 2016-10-12 | The charging correction system of touch pad and its bearing calibration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111077977A (en) * | 2018-10-19 | 2020-04-28 | 台湾类比科技股份有限公司 | Power-saving scanning method of touch device |
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| CN1766660A (en) * | 2004-09-08 | 2006-05-03 | 欧姆龙株式会社 | Capacitance measuring arrangement, method, and program |
| CN101369205A (en) * | 2007-08-13 | 2009-02-18 | 新唐科技股份有限公司 | Capacitive detection system and method, and time-interval measurement module and method |
| CN101685364A (en) * | 2008-09-27 | 2010-03-31 | 盛群半导体股份有限公司 | Device and method for sensing touch panel |
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Effective date of registration: 20180820 Address after: 1, 7 yuan, 2 yuan 1 Street, Hsinchu, Taiwan, China Applicant after: Advanced Analog Technology, Inc. Address before: Taiwan Hsinchu County Tai Yuan Street China jhubei City, No. 38 3 floor 8 Applicant before: Yuanxiang Technology Co., Ltd. |
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Application publication date: 20180420 |