CN101882042A - Palm judgment method of capacitive touch screen - Google Patents
Palm judgment method of capacitive touch screen Download PDFInfo
- Publication number
- CN101882042A CN101882042A CN 201010194302 CN201010194302A CN101882042A CN 101882042 A CN101882042 A CN 101882042A CN 201010194302 CN201010194302 CN 201010194302 CN 201010194302 A CN201010194302 A CN 201010194302A CN 101882042 A CN101882042 A CN 101882042A
- Authority
- CN
- China
- Prior art keywords
- sampling points
- effective sampling
- touch sources
- threshold value
- operating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention provides an operating method for recognizing a touch source, which comprises the steps of: detecting the touch source, obtaining at least one sampling point and a capacitance value thereof, wherein the sampling point with the capacitance value being not less than a first threshold is used as an effective sampling point; if the quantity of the effective sampling points is not less than a second threshold, calculating the area enclosed by the effective sampling points; and if the area is less than a third threshold and not less than a fourth threshold, recognizing the touch source according to the relative position distribution relation of the effective sampling points. The invention has the advantage of recognizing the palm or other corresponding objects according to the customized definition.
Description
Technical field
The present invention relates to a kind of palm judgment method that is applied to capacitive touch screen.
Background technology
Because touch-control input device possesses the facility of hommization, and does not account for the advantage in any space, touch-screen more and more is subjected to pursuing of people.The user can easily realize the various functions of mouse by finger, so nowadays, not only mobile computer has all added the design of Trackpad, the notebook computer of full touch-control also occurred supporting, used more widely as PDA(Personal Digital Assistant), flat computer (Table PC), e-book etc.
Present touching device can detect the object of multiple point touching simultaneously, and meticulous of energy detects the electric capacity of each point and the position of each point.Existing apparatus can only be discerned finger or pointer operation, for example along with the variable in distance between two fingers, and carry out the zoom function of picture, but existing apparatus can not be discerned the operation at positions such as palm exactly.
Therefore need badly and a kind ofly can discern palm, more preferably can discern the method for more touch sources.
Summary of the invention
At the deficiencies in the prior art, the technical matters that the present invention solves provides a kind of palm judgment method of capacitive touch screen, makes palm to be identified.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that the present invention proposes a kind of method of operating that is used to discern touch sources, comprise: the senses touch source, obtain at least one sampled point and capacitance thereof, with capacitance more than or equal to the sampled point of first threshold as effective sampling points.If the number of effective sampling points then calculates the area that is surrounded by described effective sampling points more than or equal to second threshold value; If this area is smaller or equal to the 3rd threshold value, and more than or equal to the 4th threshold value, then according to the relative position distribution relation recognition touch sources of effective sampling points.
Beneficial effect of the present invention is as follows: according to User Defined, can discern palm or other respective objects.
Description of drawings
Fig. 1 is that touch sources is the synoptic diagram of palm among the present invention;
Fig. 2 is that touch sources is the synoptic diagram of the sampled point of palm among the present invention;
Fig. 3 is the process flow diagram of embodiment of the invention identification touch sources.
Embodiment
The invention will be further described below in conjunction with drawings and Examples: referring to Fig. 1 and Fig. 2, palm (not comprising finger) promptly in the junction of palm and finger, projection can occur when tiling.So when palm was tiled on the touch-screen, the part of these projectioies was big with the surface of contact of touch-screen, promptly relevant capacitance value is big.Touch sources can obtain at least one sampled point with after touch-screen contacts, and each sampled point all has parameters such as the capacitance, position of oneself.When touch sources is palm, and sampled point has 5 for example, comprises sampled point 101,102,103,104 and 105.But according to the characteristics of palm, detected often more than 5 sampled points of touch-screen, but five relatively large often points of these 5 sampled points, thus only need threshold value of regulation, and then choose effective sampling points and get final product.As effective sampling points, then its relative position relation also is specific distribution relation with these five sampled points.Among Fig. 2, dash area is the main range of distribution of sampled point.According to the characteristics of palm, even sampled point increases, sampled point also is distributed in dash area mostly.
Fig. 3 is the process flow diagram of embodiment of the invention identification touch sources.When touch sources contacts with touching device 20, detect this touch sources (301).Touching device 20 will detect the capacitance of sampled point, and with capacitance more than or equal to the sampled point of first threshold as effective sampling points (303).Then, the number (305) of statistics effective sampling points, and whether the number of judging effective sampling points is more than or equal to second threshold value (307).If this number less than second threshold value, then is identified as touch sources finger (302); If the number of effective sampling points more than or equal to second threshold value, then calculates the area that effective sampling points surrounds the zone, promptly select two phase mutual edge distances effective sampling points farthest, make diagonal line with the line between the two, calculate corresponding tetragonal area.Then, judge that whether area that effective sampling points surrounds is smaller or equal to the 3rd threshold value, and more than or equal to the 4th threshold value (309), if not, when then the area that surrounds when effective sampled point is greater than the 3rd threshold value (304), touch sources is identified as whole hand (306),, touch sources is identified as finger (310) when the area that surrounds during less than the 4th threshold value (308).If the area that effective sampling points surrounds is smaller or equal to the 3rd threshold value, and more than or equal to the 4th threshold value, judge further then whether the relative position distribution relation between each effective sampling points meets the characteristics (311) of palm, if meet, then touch sources is identified as palm (313), if do not meet, then be identified as whole hand (306).According to the characteristics of palm, effective sampling points is distributed in dash area shown in Figure 2 mostly.
Different palms has different characteristics, but this does not influence implementation result of the present invention.If sampled point is a lot, if satisfy the capacitance size effective sampling points outnumber second threshold value, and meet the relation of relative position distribution, can illustrate it is palm.
In addition, above-mentioned explanation only is to be example with the palm, is not the claim that is used for limiting the present invention.The threshold value, the threshold value of number and the relation of relative position distribution that need only the capacitance of the effective sampling points that touch sources is formed on touch-screen are specified respectively, then can discern corresponding touch sources.
The above only is a preferable possible embodiments of the present invention, and is non-so promptly limit to claim of the present invention, so the equivalent structure that uses instructions of the present invention and diagramatic content to do such as changes, all in like manner is included in the scope of the present invention.
Claims (10)
1. method of operating that is used to discern touch sources comprises:
Detect described touch sources, obtain at least one sampled point and capacitance thereof, with capacitance more than or equal to the described sampled point of first threshold as effective sampling points;
If the number of described effective sampling points then calculates the area that is surrounded by described effective sampling points more than or equal to second threshold value;
If described area is smaller or equal to the 3rd threshold value, and more than or equal to the 4th threshold value, then according to the described touch sources of relative position distribution relation recognition of described effective sampling points.
2. the method for operating of identification touch sources as claimed in claim 1 is characterized in that, if the number of described effective sampling points during less than second threshold value, is identified as wisp with described touch sources.
3. the method for operating of touch sources is touched in identification as claimed in claim 1, it is characterized in that, the area that described effective sampling points surrounds is for the tetragonal area of the line between two phase mutual edge distances described effective sampling points farthest as linea angulata.
4. the method for operating of identification touch sources as claimed in claim 3 is characterized in that, the area that described effective sampling points surrounds is identified as big object with described touch sources during greater than the 3rd threshold value.
5. the method for operating of identification touch sources as claimed in claim 4 is characterized in that, described big object comprises cheek, arm etc.
6. the method for operating of identification touch sources as claimed in claim 3 is characterized in that, the area that described effective sampling points surrounds is identified as wisp less than the 4th threshold value with described touch sources.
7. as claim 2 or 6 or the method for operating of described identification touch sources, it is characterized in that described wisp comprises finger, felt pen etc.
8. the method for operating of identification touch sources as claimed in claim 1 is characterized in that, when the relative position distribution relation of described effective sampling points meets the characteristics of palm, touch sources is identified as palm.
9. the method for operating of identification touch sources as claimed in claim 1, it is characterized in that, according to the described touch sources of relative position distribution relation recognition of described effective sampling points, wherein the user can self-defined relative position distribution with the corresponding effective sampling points of touch sources that needs identification concern.
10. the method for operating of identification touch sources as claimed in claim 1 is characterized in that, described first threshold, second threshold value, the 3rd threshold value, the 4th threshold value are by User Defined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101943029A CN101882042B (en) | 2010-06-08 | 2010-06-08 | Palm judgment method of capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101943029A CN101882042B (en) | 2010-06-08 | 2010-06-08 | Palm judgment method of capacitive touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882042A true CN101882042A (en) | 2010-11-10 |
| CN101882042B CN101882042B (en) | 2011-10-12 |
Family
ID=43054068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101943029A Ceased CN101882042B (en) | 2010-06-08 | 2010-06-08 | Palm judgment method of capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101882042B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102339187A (en) * | 2011-10-26 | 2012-02-01 | 苏州瀚瑞微电子有限公司 | Palm judging method for capacitive touch screen |
| CN102478999A (en) * | 2010-11-22 | 2012-05-30 | 原相科技股份有限公司 | Optical touch control system and sensing method thereof |
| CN103197808A (en) * | 2012-01-09 | 2013-07-10 | 联想(北京)有限公司 | Method, device and electronic equipment for responding inputs on capacitive touch screen |
| CN103246462A (en) * | 2012-02-13 | 2013-08-14 | 联想(北京)有限公司 | Vertical gesture detection method and terminal |
| CN104021377A (en) * | 2014-06-05 | 2014-09-03 | 京东方科技集团股份有限公司 | Method and device for mutual capacitance type palm print recognition and touch screen |
| TWI478041B (en) * | 2011-05-17 | 2015-03-21 | Elan Microelectronics Corp | Method of identifying palm area of a touch panel and a updating method thereof |
| US9052780B2 (en) | 2010-10-20 | 2015-06-09 | Pixart Imaging Inc. | Optical touch screen system and sensing method for the same |
| US9495095B2 (en) | 2011-10-27 | 2016-11-15 | Samsung Electronics Co., Ltd. | System and method for identifying inputs input to mobile device with touch panel |
| CN106155642A (en) * | 2015-03-25 | 2016-11-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN106598349A (en) * | 2017-02-28 | 2017-04-26 | 上海蔚来汽车有限公司 | Vehicle-mounted touch display device and control method thereof |
| WO2017185575A1 (en) * | 2016-04-28 | 2017-11-02 | 北京金山办公软件有限公司 | Touch screen track recognition method and apparatus |
| CN108604160A (en) * | 2016-12-21 | 2018-09-28 | 华为技术有限公司 | The method and device of touch-screen gesture identification |
| CN109117023A (en) * | 2013-12-05 | 2019-01-01 | 禾瑞亚科技股份有限公司 | Exclude the method and apparatus of line segment group corresponding to palm |
| CN109154879A (en) * | 2016-05-18 | 2019-01-04 | 三星电子株式会社 | Electronic equipment and its input processing method |
| CN112130741A (en) * | 2019-06-24 | 2020-12-25 | 中兴通讯股份有限公司 | Control method of mobile terminal and mobile terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1783588A1 (en) * | 2004-08-24 | 2007-05-09 | Touch Panel Systems K.K. | Touch panel |
| CN101369200A (en) * | 2008-10-15 | 2009-02-18 | 友达光电股份有限公司 | Method for judging contact between touch-contact point on touch-contact panel and its sensor |
-
2010
- 2010-06-08 CN CN2010101943029A patent/CN101882042B/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1783588A1 (en) * | 2004-08-24 | 2007-05-09 | Touch Panel Systems K.K. | Touch panel |
| CN101369200A (en) * | 2008-10-15 | 2009-02-18 | 友达光电股份有限公司 | Method for judging contact between touch-contact point on touch-contact panel and its sensor |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9052780B2 (en) | 2010-10-20 | 2015-06-09 | Pixart Imaging Inc. | Optical touch screen system and sensing method for the same |
| CN102478999A (en) * | 2010-11-22 | 2012-05-30 | 原相科技股份有限公司 | Optical touch control system and sensing method thereof |
| CN102478999B (en) * | 2010-11-22 | 2015-07-01 | 原相科技股份有限公司 | Optical touch control system and sensing method thereof |
| US9557852B2 (en) | 2011-05-17 | 2017-01-31 | Elan Microelectronics Corporation | Method of identifying palm area of a touch panel and a updating method thereof |
| TWI478041B (en) * | 2011-05-17 | 2015-03-21 | Elan Microelectronics Corp | Method of identifying palm area of a touch panel and a updating method thereof |
| US9256315B2 (en) | 2011-05-17 | 2016-02-09 | Elan Microelectronics Corporation | Method of identifying palm area for touch panel and method for updating the identified palm area |
| CN102339187A (en) * | 2011-10-26 | 2012-02-01 | 苏州瀚瑞微电子有限公司 | Palm judging method for capacitive touch screen |
| CN103218090B (en) * | 2011-10-27 | 2017-08-25 | 三星电子株式会社 | System and method of the identified input to the input of the mobile device with touch panel |
| US9495095B2 (en) | 2011-10-27 | 2016-11-15 | Samsung Electronics Co., Ltd. | System and method for identifying inputs input to mobile device with touch panel |
| CN103197808B (en) * | 2012-01-09 | 2016-08-17 | 联想(北京)有限公司 | Method, device and the electronic equipment of response capacitive touch screen input |
| CN103197808A (en) * | 2012-01-09 | 2013-07-10 | 联想(北京)有限公司 | Method, device and electronic equipment for responding inputs on capacitive touch screen |
| CN103246462A (en) * | 2012-02-13 | 2013-08-14 | 联想(北京)有限公司 | Vertical gesture detection method and terminal |
| CN103246462B (en) * | 2012-02-13 | 2018-08-10 | 联想(北京)有限公司 | A kind of detection method and terminal of vertical gesture |
| CN109117023A (en) * | 2013-12-05 | 2019-01-01 | 禾瑞亚科技股份有限公司 | Exclude the method and apparatus of line segment group corresponding to palm |
| CN109117023B (en) * | 2013-12-05 | 2021-08-24 | 禾瑞亚科技股份有限公司 | Method and device for eliminating line segment group corresponding to palm |
| CN109144318B (en) * | 2013-12-05 | 2021-07-27 | 禾瑞亚科技股份有限公司 | Method and device for judging whether palm line segment group needs to be divided |
| CN109144318A (en) * | 2013-12-05 | 2019-01-04 | 禾瑞亚科技股份有限公司 | Judge the method and apparatus whether palm line segment group needs to divide |
| CN104021377A (en) * | 2014-06-05 | 2014-09-03 | 京东方科技集团股份有限公司 | Method and device for mutual capacitance type palm print recognition and touch screen |
| CN104021377B (en) * | 2014-06-05 | 2017-06-16 | 京东方科技集团股份有限公司 | A kind of mutual capacitance type palm grain identification method, device and touch-screen |
| CN106155642A (en) * | 2015-03-25 | 2016-11-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN106155642B (en) * | 2015-03-25 | 2020-07-24 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| US11042290B2 (en) | 2016-04-28 | 2021-06-22 | Beijing Kingsoft Office Software, Inc. | Touch screen track recognition method and apparatus |
| CN107329602A (en) * | 2016-04-28 | 2017-11-07 | 珠海金山办公软件有限公司 | A kind of touch-screen track recognizing method and device |
| WO2017185575A1 (en) * | 2016-04-28 | 2017-11-02 | 北京金山办公软件有限公司 | Touch screen track recognition method and apparatus |
| CN109154879A (en) * | 2016-05-18 | 2019-01-04 | 三星电子株式会社 | Electronic equipment and its input processing method |
| CN108604160A (en) * | 2016-12-21 | 2018-09-28 | 华为技术有限公司 | The method and device of touch-screen gesture identification |
| WO2018157698A1 (en) * | 2017-02-28 | 2018-09-07 | 上海蔚来汽车有限公司 | Vehicle-mounted touch display device and control method thereof |
| CN106598349A (en) * | 2017-02-28 | 2017-04-26 | 上海蔚来汽车有限公司 | Vehicle-mounted touch display device and control method thereof |
| TWI787235B (en) * | 2017-02-28 | 2022-12-21 | 大陸商上海蔚來汽車有限公司 | Vehicle touch display device and control method thereof |
| CN112130741A (en) * | 2019-06-24 | 2020-12-25 | 中兴通讯股份有限公司 | Control method of mobile terminal and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101882042B (en) | 2011-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101882042B (en) | Palm judgment method of capacitive touch screen | |
| US9128603B2 (en) | Hand gesture recognition method for touch panel and associated apparatus | |
| CN103019601B (en) | A kind of method of controlling operation thereof of touch control terminal display interface and touch control terminal thereof | |
| US8420958B2 (en) | Position apparatus for touch device and position method thereof | |
| US8692802B1 (en) | Method and apparatus for calculating coordinates with high noise immunity in touch applications | |
| CN102768595B (en) | A kind of method and device identifying touch control operation instruction on touch-screen | |
| TWI518580B (en) | Portable apparatus and operation method thereof | |
| CN101727242B (en) | Method for sensing multiclutch on touch panel | |
| EP2955619A1 (en) | Mobile terminal and application control method therefor | |
| US20140306912A1 (en) | Graduated palm rejection to improve touch sensor performance | |
| CN102314257A (en) | Touch device and user terminal | |
| CN103324410A (en) | Method and apparatus for detecting touch | |
| CN104991719A (en) | Touch screen based screen capture method and system and mobile terminal | |
| WO2012111227A1 (en) | Touch input device, electronic apparatus, and input method | |
| TW201241717A (en) | Touch-controlled device, identifying method and computer program product thereof | |
| CN103257724B (en) | A kind of non-contact type mouse and method of operating thereof | |
| US20150153925A1 (en) | Method for operating gestures and method for calling cursor | |
| CN102214028B (en) | Gesture recognition method and device for touch panel | |
| JP6255321B2 (en) | Information processing apparatus, fingertip operation identification method and program | |
| CN104423657B (en) | The method and electronic equipment of information processing | |
| CN104679312A (en) | Electronic device as well as touch system and touch method of electronic device | |
| CN105320327A (en) | Handheld electronic device and outer touch cover thereof | |
| CN103164060A (en) | Electronic device and touch method thereof | |
| US20120075203A1 (en) | Method for analyzing two-dimensional track to generate at least one non-linear index and touch control module using the same | |
| US20130300685A1 (en) | Operation method of touch panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20130320 Decision number of declaring invalidation: 20256 Granted publication date: 20111012 |