CN101963862A - Coordinate anti-trembling method on touch screen - Google Patents
Coordinate anti-trembling method on touch screen Download PDFInfo
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- CN101963862A CN101963862A CN 201010291224 CN201010291224A CN101963862A CN 101963862 A CN101963862 A CN 101963862A CN 201010291224 CN201010291224 CN 201010291224 CN 201010291224 A CN201010291224 A CN 201010291224A CN 101963862 A CN101963862 A CN 101963862A
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Abstract
The invention relates to a coordinate anti-trembling method on a touch screen, comprising the following steps of: detecting a first inductive coordinate value after a touch-control object touches the touch screen; continuously detecting the next adjacent inductive coordinate value after the touch-control object touches the touch screen; comparing a difference value of the next inductive coordinate value and the previous inductive coordinate value and a threshold value; if the difference value is in the threshold value, outputting the previous inductive coordinate value, continuously detecting and comparing the difference value until the difference value is not in the threshold value, and outputting the current inductive coordinate value. The method prevents trembling of the coordinate by setting the threshold value on the touch screen and can quickly judge whether a finger is in a trembling state, thereby eliminating the inductive coordinate value generated by a trembling phenomenon.
Description
Technical field
The present invention relates to the anti-shake method of a kind of coordinate, refer in particular to the anti-shake method of coordinate on the touch-screen that prevents.
Background technology
In recent years, touch screen has developed to the people exchanges simple and the most direct mode mutually with computer, because of its in conjunction with input equipment and real world devices, and need not the input equipment of mouse or keyboard and so on, so being applied in the every field more and more widely.
Above-mentioned touch-screen generally has structure as shown in Figure 1, if the user pins touch-screen panel, just the position coordinates of pinning is converted to touch-screen panel 101, the above-mentioned touch-screen panel 101 of driving of simulated data output, simulated data by the kind of touch screen panels input is converted to numerical data, touch location be converted to coordinate Touch Screen control part 102, obtain the input of position data, the central processor equipment 103 of the mouse point on the moving image from above-mentioned Touch Screen control part 102.Described Touch Screen control part 102 is taken a sample at a certain time interval by the simulated data of touch-screen panel 101 inputs, is converted to digital signal.At this moment, touch the time delay value of sampling value as the input of senses touch screen panel, if this value is big, then the touch activity generation delay time increases for a long time, causes the sensitivity of touch-screen panel to reduce; If this value is little, the touch activity takes place just to reduce time delay, causes the sensitivity of touch-screen panel to rise.
But existing touch screen is when the simulated data touch location is converted to digital signal, when the user continues to pin a point of touch screen, just exists the actual touch screen to go up the phenomenon that mouse point is shaken, and causes the coordinate on the touch-screen constantly to change.Though this shake is smaller, also directly caused the coordinate on the touch-screen that a subtle change constantly takes place.
Therefore need solve above problem for users provide a kind of easier method.
Summary of the invention
The actual technical matters to be solved of the present invention is how the anti-shake method of coordinate on a kind of touch-screen is provided.
In order to realize above-mentioned purpose of the present invention, the invention provides the anti-shake method of a kind of touch panel coordinates, it comprises the steps: to detect first induction coordinate figure after touch object is touched touch-screen; The adjacent next one is responded to coordinate figure after continuing detecting touch object touching touch screen; The next one is responded to coordinate figure compares with a threshold value with the difference of previous induction coordinate figure; If this difference in described threshold value, is then exported previous induction coordinate figure; Continuation detecting and comparison difference not in described threshold value, are then exported current induction coordinate figure up to described difference.
The threshold value that is provided with on touch-screen of the present invention is to reach the method that prevents coordinate shake, and not only method is easy, and whether can judge finger fast be in dither state, thereby gets rid of the induction coordinate figure that produces owing to jitter phenomenon.
Description of drawings
Fig. 1 is the integration map that general Touch Screen roughly constitutes;
Fig. 2 is induction amount constitutional diagram behind the finger touches touch-screen of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
After touch panel powers on, sweep trace just begins scanning, without any the input media contact surface plate time, the variation of whole contact type panel capacitance is tending towards a steady state value, and when any input equipment such as this panel of finger touches, this capacitance will change, so at a time just can determine the particular location of respective finger touching by the signal intensity that shows on X-axis and the Y-axis.Please refer to shown in Figure 2ly, shown behind a certain moment finger touches touch-screen variable condition figure of induction amount on each bar sweep trace, so in two-dimensional space, utilize the particular location after the variation of X-axis signal and Y-axis signal just can be determined finger touches.But in the practical operation, after this touch-screen powers on, because the speed of sweep trace scanning is quite fast, per second can detect a lot of coordinates, and the coordinate that the speed that finger touches is operated to the touch-screen does not obviously have sweep trace to detect is fast, even so can cause finger is stationary state on touch-screen, sweep trace also can detect coordinate many times.Because slight vibrations and otherwise factor during finger touch, finger touches is understood the phenomenon that shake takes place behind touch-screen, no matter owing to be on the X-axis or the signal value that detects on the Y-axis all can slightly fluctuate, cause the coordinate data that obtains no longer very accurate.
In order to eliminate above-mentioned jitter phenomenon, we discuss earlier with the anti-shake method of coordinate on the X-axis, behind the finger touches touch-screen, detect its first induction coordinate figure X1 and also X1 is exported as effective coordinate, continue detecting and respond to coordinate figure X2 through second after the scan period; Calculate the difference DELTA X1 of second induction coordinate figure X2 and first induction coordinate figure X1, i.e. Δ X1=X2-X1; Above-mentioned difference DELTA X1 and a threshold value Xo are compared; First kind of situation, if it is worth less than threshold value Xo, promptly difference DELTA X1＜Xo then exports the i.e. first induction coordinate figure X1 of former coordinate figure.Because described difference DELTA X1 in described threshold value Xo, then shows the coordinate that is detected this moment shake is arranged,, shown that also finger does not move on described touch-screen so do not need to export the coordinate figure X2 of this moment.Because this moment, finger did not leave touch-screen, so the second induction coordinate figure X2 also just equals the first induction coordinate figure X1.But if second kind of situation appearred, and promptly its difference DELTA X1 is greater than threshold value Xo, and promptly difference DELTA X1＞Xo then exports the i.e. second induction coordinate figure X2 of current coordinate figure.It is just no longer identical with described previous induction coordinate figure X1 to respond to coordinate figure X2 this moment.This explanation is pointed the coordinate figure that detects at this moment and is no longer belonged to the scope of jitter phenomenon on touch-screen, and shows that described finger has slip on described touch-screen.
Above-mentioned under first kind of situation, also need to continue to detect through the 3rd after another scan period induction coordinate figure X3, calculate the difference DELTA X2 of the 3rd the induction coordinate figure X3 and the second induction coordinate figure X2, i.e. Δ X2=X3-X2; Above-mentioned difference DELTA X2 is also compared with above-mentioned threshold value Xo; If its value Δ X2 is less than threshold value Xo, be difference DELTA X2＜Xo, then export previous induction coordinate figure X2, because described difference DELTA X2 is still in described threshold value Xo, show that then the coordinate that is detected this moment has shake, so do not need to export the coordinate figure X3 of this moment, shown that finger does not move yet on described touch-screen.Because this moment, finger did not leave touch-screen, so described the 3rd induction coordinate figure X3 also just equals the described second induction coordinate figure X2, and the described second induction coordinate figure X2 equals the first induction coordinate figure X1, so the 3rd induction coordinate figure X3 of this moment also just equals the first induction coordinate figure X1.But if it is worth Δ X2 not in the scope of described threshold value Xo, promptly difference DELTA X2＞Xo then exports current induction coordinate figure X3.It is just no longer identical with described previous induction coordinate figure X2 to respond to coordinate figure X3 this moment.This explanation is pointed the coordinate figure that detects at this moment and is no longer belonged to the scope of jitter phenomenon on touch-screen, and shows that described finger has slip on described touch-screen.And follow-up induction coordinate figure also the rest may be inferred with same principle.
Above-mentioned threshold value Xo needs to set in advance, and its area S with the finger touches touch-screen is relevant, and is in contact with it area S and is directly proportional, and is formulated as follows: Xo=S* λ (wherein λ is a parameter).So this threshold value can be pointed the difference of thickness and adjustment automatically with the user.The setting of threshold value Xo among the present invention, the interference that brings for better eliminating jitter phenomenon exactly, the induction coordinate data within threshold value Xo, we just think that it is owing to the shake coordinate values that reason produced, so abandon output; And if the induction coordinate that detects not within threshold value Xo, shows then that this coordinate figure not in the scope of jitter phenomenon, writes down corresponding coordinate figure this moment.Just can judge whether jitter phenomenon has taken place on the touch-screen so according to the induction coordinate figure.
And also be same reason to the Y coordinate axis, promptly at first detect the coordinate influence value Y1 on the Y-axis behind the touch object touching touch-screen; The adjacent next one is responded to coordinate figure Y2 after continuing detecting touch object touching touch screen; This next one induction coordinate figure Y2 is compared with a threshold value Yo with the difference DELTA Y1 that this moment, a last induction coordinate figure was the first induction coordinate figure Y1; If this difference DELTA Y1 in described threshold value Yo, then exports the first induction coordinate figure Y1, show that the induction coordinate Y2 that is detected this moment is produced by jitter phenomenon, so described touch object does not just move on described touch-screen yet.And if this difference DELTA Y1 not in this threshold value in the Yo, then export this current induction coordinate figure, promptly the second induction coordinate figure Y2 shows also that thus the induction coordinate that is detected this moment is not because shake causes, but shows that described touch object slides on described touch-screen.
Of the present inventionly the method that threshold value prevents the coordinate shake is being set on the touch-screen on to X-axis and Y-axis respectively by above-mentioned, at capacitive touch screen, not only method is easy, whether and can to judge finger fast be in dither state, thereby get rid of the induction coordinate figure that produces owing to jitter phenomenon.
Claims (10)
1. method that touch panel coordinates is anti-shake, it comprises the steps:
First induction coordinate figure behind the detecting touch object touching touch-screen;
The adjacent next one is responded to coordinate figure after continuing detecting touch object touching touch screen;
The next one is responded to coordinate figure compares with a threshold value with the difference of previous induction coordinate figure;
If this difference in described threshold value, is then exported previous induction coordinate figure; Continuation detecting and comparison difference not in described threshold value, are then exported current induction coordinate figure up to described difference.
2. the method for claim 1 is characterized in that: described previous induction coordinate figure does not leave under the prerequisite of touch-screen in touch object be exactly first induction coordinate figure.
3. method as claimed in claim 1 or 2 is characterized in that: after detecting described first induction coordinate figure, it is exported as effective coordinate.
4. the method for claim 1 is characterized in that: the described adjacent time interval of a scan period to the next scan period that be meant.
5. the method for claim 1, it is characterized in that: described threshold value can be set in advance, and is directly proportional with the area of touch object touching touch-screen.
6. the method for claim 1 is characterized in that: if described difference in described threshold value, then shows the induction coordinate that is detected this moment shake is arranged, but do not need to export the coordinate figure of this moment.
7. method as claimed in claim 6 is characterized in that: do not move on described touch-screen if described difference in described threshold value, then shows touch object.
8. the method for claim 1 is characterized in that: not in described threshold value, show that then the induction coordinate that is detected this moment is not because shake causes, so need to export the coordinate figure of this moment as if described difference.
9. method as claimed in claim 8 is characterized in that: slide on described touch-screen if described difference not in described threshold value, then shows described touch object.
10. the method for claim 1 is characterized in that: the induction coordinate figure behind the described detecting touch object touching touch-screen is meant to detect respectively respectively responds to coordinate figure on X-axis and the Y-axis.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103677568A (en) * | 2013-12-10 | 2014-03-26 | 华为技术有限公司 | Clicked object amplifying method and device based on floating touch |
| CN104281339A (en) * | 2013-07-11 | 2015-01-14 | 原相科技股份有限公司 | Target location method of touch panel |
| WO2015014141A1 (en) * | 2013-07-30 | 2015-02-05 | 深圳市汇顶科技股份有限公司 | Touchscreen coordinate debouncing method and system, and touchscreen terminal |
| CN104516578A (en) * | 2013-09-29 | 2015-04-15 | 中兴通讯股份有限公司 | Touch screen touch spot processing method, device and terminal |
| CN104811862A (en) * | 2015-03-31 | 2015-07-29 | 广东欧珀移动通信有限公司 | Volume control method and terminal for sound box |
| CN105117077A (en) * | 2014-03-21 | 2015-12-02 | 马维尔国际有限公司 | Method, device and touch component for determining touch area on touch panel |
| WO2015192490A1 (en) * | 2014-06-17 | 2015-12-23 | 中兴通讯股份有限公司 | Method, device, and terminal for removing jittering on touchscreen |
| CN107085477A (en) * | 2016-02-03 | 2017-08-22 | 精工爱普生株式会社 | The non-volatile memory medium of electronic equipment, storing control program |
| CN107491212A (en) * | 2017-08-28 | 2017-12-19 | 江苏沁恒股份有限公司 | A kind of touch-screen stabilization optimization method, system and touch screen terminal |
| US9898137B2 (en) | 2013-07-03 | 2018-02-20 | Pixart Imaging Inc. | Object positioning method for a touch panel |
| CN108628529A (en) * | 2017-03-23 | 2018-10-09 | 英特尔公司 | Method and apparatus for the spot angle orientation identification in touch apparatus |
| CN114546166A (en) * | 2018-09-14 | 2022-05-27 | 梁晨 | Method for avoiding micro-displacement misoperation of dragging action of capacitive touch screen |
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| CN101807130A (en) * | 2010-05-17 | 2010-08-18 | 友达光电股份有限公司 | Touch control position correcting method |
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| CN101807130A (en) * | 2010-05-17 | 2010-08-18 | 友达光电股份有限公司 | Touch control position correcting method |
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| US9898137B2 (en) | 2013-07-03 | 2018-02-20 | Pixart Imaging Inc. | Object positioning method for a touch panel |
| CN104281339A (en) * | 2013-07-11 | 2015-01-14 | 原相科技股份有限公司 | Target location method of touch panel |
| WO2015014141A1 (en) * | 2013-07-30 | 2015-02-05 | 深圳市汇顶科技股份有限公司 | Touchscreen coordinate debouncing method and system, and touchscreen terminal |
| CN104516578A (en) * | 2013-09-29 | 2015-04-15 | 中兴通讯股份有限公司 | Touch screen touch spot processing method, device and terminal |
| CN104516601A (en) * | 2013-09-29 | 2015-04-15 | 中兴通讯股份有限公司 | Touch screen touch spot processing method, device and terminal |
| CN104516578B (en) * | 2013-09-29 | 2019-04-23 | 中兴通讯股份有限公司 | Touch screen contact processing method, device and terminal |
| WO2015154362A1 (en) * | 2013-09-29 | 2015-10-15 | 中兴通讯股份有限公司 | Touch screen contact processing method and device, and terminal |
| CN103677568A (en) * | 2013-12-10 | 2014-03-26 | 华为技术有限公司 | Clicked object amplifying method and device based on floating touch |
| WO2015085919A1 (en) * | 2013-12-10 | 2015-06-18 | 华为技术有限公司 | Clicked object magnifying method and apparatus based on floating touch |
| CN105117077A (en) * | 2014-03-21 | 2015-12-02 | 马维尔国际有限公司 | Method, device and touch component for determining touch area on touch panel |
| CN105320316A (en) * | 2014-06-17 | 2016-02-10 | 中兴通讯股份有限公司 | Method and device for debouncing of touch screen and terminal |
| WO2015192490A1 (en) * | 2014-06-17 | 2015-12-23 | 中兴通讯股份有限公司 | Method, device, and terminal for removing jittering on touchscreen |
| CN105320316B (en) * | 2014-06-17 | 2020-12-11 | 中兴通讯股份有限公司 | Method and device for removing jitter of touch screen and terminal |
| CN104811862B (en) * | 2015-03-31 | 2018-03-27 | 广东欧珀移动通信有限公司 | A kind of audio amplifier method for controlling volume and terminal |
| CN104811862A (en) * | 2015-03-31 | 2015-07-29 | 广东欧珀移动通信有限公司 | Volume control method and terminal for sound box |
| CN107085477A (en) * | 2016-02-03 | 2017-08-22 | 精工爱普生株式会社 | The non-volatile memory medium of electronic equipment, storing control program |
| US10838550B2 (en) | 2016-02-03 | 2020-11-17 | Seiko Epson Corporation | Changing specification of operation based on start position |
| CN108628529A (en) * | 2017-03-23 | 2018-10-09 | 英特尔公司 | Method and apparatus for the spot angle orientation identification in touch apparatus |
| CN107491212A (en) * | 2017-08-28 | 2017-12-19 | 江苏沁恒股份有限公司 | A kind of touch-screen stabilization optimization method, system and touch screen terminal |
| CN114546166A (en) * | 2018-09-14 | 2022-05-27 | 梁晨 | Method for avoiding micro-displacement misoperation of dragging action of capacitive touch screen |
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Application publication date: 20110202 |