CN104345956A - Method for preventing palm from touching by mistake - Google Patents
Method for preventing palm from touching by mistake Download PDFInfo
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- CN104345956A CN104345956A CN201310357633.3A CN201310357633A CN104345956A CN 104345956 A CN104345956 A CN 104345956A CN 201310357633 A CN201310357633 A CN 201310357633A CN 104345956 A CN104345956 A CN 104345956A
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- touch coordinate
- judging
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010586 diagram Methods 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
Abstract
The invention discloses a method for preventing palm from touching by mistake, which is used in a device using a touch screen. When a user inputs data on the touch panel in a writing mode, the actual touch coordinate and the mistaken touch coordinate can be distinguished according to the palm of the user or the writing mode, and the recognition degree of the touch screen is further improved.
Description
Technical field
The present invention relates to one and prevent palm false touch method, particularly relate to a kind of method preventing palm false touch according to user's palm or ways of writing, can be used for being with in the device of touch-screen.
Background technology
In various consumption electronic products market now, due to product design all with light, thin, short, little for direction, therefore without enough space as the conventional input devices such as keyboard, mouse, especially under the drive of flat computer demand stressing human oriented design, the display device of collocation touch-screen (touch panel) becomes one of key part and component of various electronic product gradually, such as, be applied in the portable electronic devices such as PDA(Personal Digital Assistant), mobile phone (mobile Phone), intelligent mobile phone or flat computer.
Touch-screen uses sensor to detect the resistance, electric capacity, pressure or the intensity variation that cause because of touch event to obtain touch coordinate, then export touch coordinate to system.But, when user inputs data with form of writing on touch panel, palm leans against on screen by easy custom, and now sensor can sense the action of palm and finger simultaneously, and then generation correctly cannot detect the input information that user writes behavior.
Summary of the invention
Because the problem of above-mentioned prior art, the object of the present invention is to provide a kind of method preventing palm false touch, and then promote the identification of contact panel.
For reaching above-mentioned object, the present invention discloses a kind of method preventing false touch touch-screen, if it is included in when detecting a touch event and receives multiple touch coordinate, record represents one first coordinate figure and one second coordinate figure of each touch coordinate, wherein said first coordinate figure is about a first direction, described second coordinate figure about a second direction, and described first direction and described second direction perpendicular to one another; Obtain the multiple judging distances corresponding to described multiple touch coordinate respectively, a specific touch coordinate and other touch coordinate at least one in multiple touch coordinate described in a particular decision distance dependent in wherein said multiple judging distance; And when described particular decision distance is not more than a preset distance, give up described specific touch coordinate.
Advantage of the present invention for can distinguish practical touch coordinate and false touch touch coordinate according to user's palm or ways of writing, and then promotes the identification of contact panel.
Accompanying drawing explanation
Fig. 1 is a kind of process flow diagram preventing palm false touch method in the present invention.
Fig. 2 to Figure 12 is the schematic diagram of the embodiment of the present invention when execution prevents palm false touch method.
Wherein, description of reference numerals is as follows:
110 ~ 160 steps
F
0~ F
6touch coordinate
F
0' ~ F
6' with reference to touch coordinate
Embodiment
1st figure is the process flow diagram that in the present invention, one prevents palm false touch (palm rejection) method, and it comprises the following step:
Step 110: determine a preset distance R, performs step 120.
Step 120: the number judging touch coordinate when detecting touch event: if detect multiple touch coordinate, performs step 130; If detect single touch coordinate, perform step 160.
Step 130: record the coordinate figure of multiple touch coordinate and to compare according to this program, performs step 140.
Step 140: whether can obtain a coordinates of targets value after judging to perform alignment programs: if so, perform step 150; If not, step 120 is performed.
Step 150: export coordinates of targets value, performs step 120.
Step 160: the coordinate figure exporting single touch coordinate, performs step 120.
In step 110, preset distance R is relevant with user's hand size or writing style, determines that the mode of preset distance R will describe in detail instructions is follow-up.In the step 120, the present invention can judge whether when detecting touch event to receive single or multiple touch coordinate.If only receive single touch coordinate, the present invention can perform step 160 to export the coordinate figure of this single touch coordinate; If receive multiple touch coordinate, the present invention can perform step 130 to record the coordinate figure of multiple touch coordinate and to compare according to this program.
Fig. 2 to Fig. 5 is the schematic diagram of the embodiment of the present invention when execution judges false touch method.Stain represents all touch coordinates received when detecting touch event, wherein F
0represent user with the touch coordinate detected when finger or pointer input, and F
1~ F
nrepresent the touch coordinate detected because of the false touch of user's palm.Fig. 2 to Fig. 5 shows the embodiment of N=6, but does not limit category of the present invention, and N can be any positive integer.The present invention, when performing step 130, first can record all touch coordinate F
0~ F
6coordinate figure (x
0, y
0) ~ (x
6, y
6), then program of comparing according to this.
In the embodiment shown in Fig. 2 and Fig. 3, step 130 adopts distance algorithm to obtain total distance between each touch coordinate and other touch coordinate with program of comparing.For example, on coordinate plane 2 be F
1(x
1, y
1) and F
2(x
2, y
2) between line segment can obtain length according to Pythagorean theorem and be
, embodiment is reduced to herein for convenience of description | x
1-x
2|+| y
1-y
2|.First touch coordinate F is obtained
0~ F
6in distance (being represented by the dotted line in Fig. 2 and Fig. 3) between every two touch coordinates, wherein D
01represent touch coordinate F
0and F
1between distance, D
02represent touch coordinate F
0and F
2between distance ..., D
56represent touch coordinate F
5and F
6between distance, its value is as follows:
D
01=|x
0-x
1|+|y
0-y
1|
D
02=|x
0-x
2|+|y
0-y
2|
…
D
56=|x
5-x
6|+|y
5-y
6|
Then obtain the total distance S0 ~ S6 between each touch coordinate and other touch coordinate more respectively, wherein S0 represents touch coordinate F
0with touch coordinate F
1~ F
6between total distance, S1 represents touch coordinate F
1with touch coordinate F
0, F
2~ F
6between total distance ..., S6 represents touch coordinate F
6with touch coordinate F
0~ F
5between total distance, its value is as follows:
S0=D
01+D
02+D
03+D
04+D
05+D
06
S1=D
01+D
12+D
13+D
14+D
15+D
16
S3=D
03+D
13+D
23+D
34+D
35+D
36
S4=D
04+D
14+D
24+D
34+D
45+D
46
S5=D
05+D
15+D
25+D
35+D
45+D
56
S6=D
06+D
16+D
26+D
36+D
46+D
56
Then in total distance S0 ~ S6, choose maximal value, then judge whether maximum total distance is greater than preset distance R.Assigning touching instruction when user's false touch contact surface plate, all touch coordinates now detected as shown in Figure 2, the wherein touch coordinate F of palm
1~ F
6closer to each other, and the touch coordinate F0 of finger and the touch coordinate F of other palm
1~ F
6distant, therefore S0 is maximum total distance.Do not assign touching instruction when user's false touch contact surface plate, all touch coordinates now detected as shown in Figure 3, the wherein touch coordinate F of palm
1~ F
6closer to each other, the value of total distance S1 ~ S6 can not differ too many, therefore supposes that S6 is maximum total distance.
As shown in Figures 2 and 3, the touch coordinate that maximum total distance is corresponding may be actual input data part (touch coordinate F
0) or palm false touch point (touch coordinate F
6), therefore the present invention separately judges according to preset distance R.The present invention can decide the value of preset distance R in step 110 according to user's hand size or writing style, suitably can describe the distance between user's finger and palm.When maximum total distance S0 is greater than preset distance R, touch coordinate F can be judged
0for reality input data part, and lock touch coordinate F
0using as coordinates of targets value; When maximum total distance S6 is not more than preset distance R, touch coordinate F can be judged
6for palm false touch point, any coordinates of targets value therefore can not be produced.
In embodiment shown in Fig. 4 to Fig. 7, the present invention carries out distance comparison according to the distance between two adjacent touch coordinates in step 130.First the adjacent touch coordinate of X-direction (as shown in the double-head arrow dotted line in Fig. 4 and Fig. 5) can be chosen at, or be chosen at the adjacent touch coordinate of Y direction (as shown in the double-head arrow dotted line in Fig. 6 and Fig. 7), then calculate the distance between two adjacent touch coordinates.If the distance between two adjacent touch coordinates is not more than preset distance R, then delete two adjacent touch coordinates; If the distance between two adjacent touch coordinates is greater than preset distance R, then retain two adjacent touch coordinates.When all touch coordinates in the same fashion comparison complete after, if there is a touch coordinate be retained, now can lock this touch coordinate using as coordinates of targets value.
According to the writing style of most people, explain with Fig. 6 and Fig. 7.In embodiment in figure 6 and figure 7, step 130 adopts distance algorithm to obtain the distance D between the adjacent touch coordinate of Y direction two
01, D
12, D
34and D
56, wherein D
01represent touch coordinate F
0and F
1between distance, D
12represent touch coordinate F
1and F
2between distance, D
34represent touch coordinate F
3and F
4between distance, and D
56represent touch coordinate F
5and F
6between distance, its value is as follows:
D
01=|x
0-x
1|+|y
0-y
1|
D
12=|x
1-x
2|+|y
1-y
2|
D
34=|x
3-x
4|+|y
3-y
4|
D
56=|x
5-x
6|+|y
5-y
6|
For example, in the embodiment shown in fig. 6, if alignment programs is from larger Y-coordinate value, first choose two adjacent touch coordinates are F
0and F
1, after comparison, learn distance D
01be greater than preset distance R, now can retain touch coordinate F
0and F
1; Then choose two adjacent touch coordinates are F
1and F
2, after comparison, learn distance D
12be not more than preset distance R, now can delete touch coordinate F
1and F
2, therefore only retain touch coordinate F
0; Then choose two adjacent touch coordinates are F
3and F
4, after comparison, learn distance D
34be not more than preset distance R, now can delete touch coordinate F
3and F
4, therefore only retain touch coordinate F
0; Finally choose two adjacent touch coordinates are F
5and F
6, after comparison, learn distance D
56be not more than preset distance R, now can delete touch coordinate F
5and F
6, therefore finally only can retain touch coordinate F
0, now lockable touch coordinate F
0using as coordinates of targets value.In like manner, if alignment programs is from less Y-coordinate value, first choose two adjacent touch coordinates are F
5and F
6, after comparison, learn distance D
56be not more than preset distance R, now can delete touch coordinate F
5and F
6; Then choose two adjacent touch coordinates are F
3and F
4, after comparison, learn distance D
34be not more than preset distance R, now can delete touch coordinate F
3and F
4; Then choose two adjacent touch coordinates are F
1and F
2, after comparison, learn distance D
12be not more than preset distance R, now can delete touch coordinate F
1and F
2; Last only remaining touch coordinate F
0and F
6, after comparison, learn distance D
06be greater than preset distance R, now can retain touch coordinate F
0and F
6, due to touch coordinate F
6previously deleted, and therefore finally only can be left touch coordinate F
0, now lockable touch coordinate F
0using as coordinates of targets value.
In the embodiment shown in fig. 7, no matter alignment programs is from larger or less Y-coordinate value, the distance D between two adjacent touch coordinates
12, D
34and D
56neither be greater than preset distance R, now can delete touch coordinate F
1to F
6, therefore can not retain any touch coordinate.
In an embodiment of the present invention, can only according to X-direction or Y direction wherein one two adjacent touch coordinates between distance carry out distance comparison, that is when a specific touch coordinate and other distance between X-axis or Y direction adjacent touch coordinate need be greater than preset distance R, this specific touch coordinate just can be locked after alignment programs to provide coordinates of targets value.In an alternative embodiment of the invention, distance comparison can be carried out according to the distance between X-direction and two adjacent touch coordinates of Y direction simultaneously, that is when a specific touch coordinate and other distance between X-axis and Y direction adjacent touch coordinate all need to be greater than preset distance R, this specific touch coordinate just can be locked after alignment programs to provide coordinates of targets value.
In embodiment shown in Fig. 8 to Figure 11, the present invention compares according to the X-coordinate of two adjacent touch points or Y-coordinate in step 130.First the adjacent touch coordinate of X-direction (as shown in the double-head arrow dotted line in Fig. 8 and Fig. 9) can be chosen at, or be chosen at the adjacent touch coordinate of Y direction (as shown in the double-head arrow dotted line in Figure 10 and Figure 11), then calculate X-coordinate difference or Y-coordinate difference between two adjacent touch coordinates.If the X-coordinate difference between two adjacent touch coordinates is not more than preset distance R
xor Y-coordinate difference is not more than preset distance R
y, then two adjacent touch coordinate, wherein R are deleted
xfor X-coordinate to preset distance; R
yfor Y-coordinate to preset distance; If the X-coordinate difference between two adjacent touch coordinates is greater than preset distance R
xor Y-coordinate difference is greater than preset distance R
y, then two adjacent touch coordinates are retained.When all touch coordinates in the same fashion comparison complete after, if there is a touch coordinate be retained, now can lock this touch coordinate using as coordinates of targets value.
According to the writing style of most people, explain with Figure 10 and Figure 11.In the embodiment shown in Figure 10 and Figure 11, the Y-coordinate difference △ Y between the adjacent touch coordinate of Y direction two can be calculated
01, △ Y
12, △ Y
34with △ Y
56, wherein △ Y
01represent touch coordinate F
0and F
1between Y-coordinate difference, △ Y
12represent touch coordinate F
1and F
2between Y-coordinate difference, △ Y
34represent touch coordinate F
3and F
4between Y-coordinate difference, and △ Y
56represent touch coordinate F
5and F
6between Y-coordinate difference, its value is as follows:
△Y
01=|y
0-y
1|
△Y
12=|y
1-y
2|
△Y
34=|y
3-y
4|
△Y
56=|y
5-y
6|
In the embodiment shown in fig. 10, if alignment programs is from larger Y-coordinate value, first choose two adjacent touch coordinates are F
0and F
1, after comparison, learn Y-coordinate difference △ Y
01be greater than preset distance R
y, now can retain touch coordinate F
0and F
1; Then choose two adjacent touch coordinates are F
1and F
2, after comparison, learn Y-coordinate difference △ Y
12be not more than preset distance R
y, now can delete touch coordinate F
1and F
2, therefore only retain touch coordinate F
0; Then choose two adjacent touch coordinates are F
3and F
4, after comparison, learn Y-coordinate difference △ Y
34be not more than preset distance R
y, now can delete touch coordinate F
3and F
4, therefore only retain touch coordinate F
0; Finally choose two adjacent touch coordinates are F
5and F
6, after comparison, learn Y-coordinate difference △ Y
56be not more than preset distance R
y, now can delete touch coordinate F
5and F
6, therefore finally only can retain touch coordinate F
0, now lockable touch coordinate F
0using as coordinates of targets value.In like manner, if alignment programs is from less Y-coordinate value, first choose two adjacent touch coordinates are F
5and F
6, after comparison, learn Y-coordinate difference △ Y
56be not more than preset distance R
y, now can delete touch coordinate F
5and F
6; Then choose two adjacent touch coordinates are F
3and F
4, after comparison, learn Y-coordinate difference △ Y
34be not more than preset distance R
y, now can delete touch coordinate F
3and F
4; Then choose two adjacent touch coordinates are F
1and F
2, after comparison, learn Y-coordinate difference △ Y
12be not more than preset distance R
y, now can delete touch coordinate F
1and F
2; Last only remaining touch coordinate F
0and F
6, owing to learning Y-coordinate difference △ Y after previous comparison
56be not more than preset distance R
y, touch coordinate F
5and F
6deleted, therefore finally only can be left touch coordinate F
0, now lockable touch coordinate F
0using as coordinates of targets value.
In the embodiment shown in fig. 11, no matter alignment programs is from larger or less Y-coordinate value, the Y-coordinate difference △ Y between two adjacent touch coordinates
12, △ Y
34with △ Y
56neither be greater than preset distance R
y, now can delete touch coordinate F
1to F
6, therefore can not retain any touch coordinate.
In an embodiment of the present invention, can only to compare program according to the X-coordinate difference between the adjacent touch coordinate of X-direction two or the Y-coordinate difference between the adjacent touch coordinate of Y direction two, that is when a specific touch coordinate and other X-coordinate difference between X-direction adjacent touch coordinate or and other Y-coordinate difference between Y direction adjacent touch coordinate need be greater than preset distance R
y, just can lock this specific touch coordinate after alignment programs to provide coordinates of targets value.In other embodiments of the present invention, can to compare program according to the X-coordinate difference between the adjacent touch coordinate of X-direction two and the Y-coordinate difference between the adjacent touch coordinate of Y direction two simultaneously, that is when a specific touch coordinate and other X-coordinate difference between X-direction adjacent touch coordinate and and other Y-coordinate difference between Y direction adjacent touch coordinate all need to be greater than preset distance R
y, just can lock this specific touch coordinate after alignment programs to provide coordinates of targets value.
In an embodiment of the present invention, preset distance R can be inputted voluntarily by user, or is selected to allow user by system value of offering suggestions.In an alternative embodiment of the invention, system can require that palm is placed on contact surface plate with form of writing by user, then obtains best preset distance R according to user's hand shape.
Figure 12 is that the present invention prevents the schematic diagram of the method for false touch touch-screen when performing step 110.When palm is placed on contact surface plate with form of writing by user, system can detect the reference touch coordinate F corresponding to user's finger or pointer
0', and correspond to the reference touch coordinate F of user's palm area
1' ~ F
m'.Figure 12 shows the embodiment of M=6, but does not limit category of the present invention, and M can be any positive integer.
Perform in an embodiment of step 110 in the present invention, distance algorithm can be adopted to obtain each with reference to the total distance of reference between touch coordinate and other reference touch coordinate, and detail can be consulted previously about the explanation of Fig. 2 and Fig. 3, does not separately add repeat at this.As shown in figure 12, with reference to touch coordinate F
0' and with reference to touch coordinate F
1' ~ F
6' between the total distance S0 ' of reference be maximal value, now preset distance R can be set to S0 '+Δ R, wherein Δ R is the adjusted value about Identification Errors.
Perform in another embodiment of step 110 in the present invention, can obtain the reference distance between X-direction or Y direction two neighboring reference touch coordinate, detail can be consulted previously about the explanation of Fig. 4 to Fig. 7, does not separately add repeat at this.As shown in figure 12, with reference to touch coordinate F
0' and with reference to touch coordinate F
1' between reference distance D
01' be maximal value, now preset distance R can be set to D
01'+Δ R, wherein Δ R is the adjusted value about Identification Errors.
Perform in another embodiment of step 110 in the present invention, the reference X-coordinate difference between X-direction two neighboring reference touch coordinate or the reference Y-coordinate difference between Y direction two neighboring reference touch coordinate can be obtained, detail can be consulted previously about the explanation of Fig. 8 to Figure 11, does not separately add repeat at this.As shown in figure 12, with reference to touch coordinate F
0' and with reference to touch coordinate F
1' between reference X-coordinate difference △ X
01' or with reference to Y-coordinate difference △ Y
01' be maximal value, now preset distance R can be set to △ X
01'+Δ R or △ Y
01'+Δ R, wherein Δ R is the adjusted value about Identification Errors.
The invention provides a kind of method preventing palm false touch, can pass through software or firmware mode and realize at the device using touch-screen.When user inputs data with form of writing on contact surface plate, the present invention can distinguish actual touch coordinate and false touch touch coordinate according to user's palm or ways of writing, and then promotes the identification of touch-screen.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. prevent a method for palm false touch, it is characterized in that, comprise:
If receive multiple touch coordinate when detecting a touch event, record represents one first coordinate figure and one second coordinate figure of each touch coordinate, wherein said first coordinate figure is about a first direction, described second coordinate figure about a second direction, and described first direction and described second direction perpendicular to one another;
Obtain multiple first judging distances corresponding to described multiple touch coordinate respectively, in wherein said multiple first judging distance, specific first judging distance is about a specific touch coordinate in described multiple touch coordinate and other touch coordinate at least one; And
When described specific first judging distance is not more than first preset distance, give up described specific touch coordinate.
2. the method for claim 1, is characterized in that, described specific first judging distance is the distance summation between described specific touch coordinate and other touch coordinates all.
3. method as claimed in claim 2, is characterized in that, separately comprise:
When palm is placed on a touch-screen with form of writing by a user, detects multiple reference touch coordinate and record described multiple coordinate figure with reference to touch coordinate;
Each is obtained with reference to the multiple reference distance summations between touch coordinate and other reference touch coordinates all according to described multiple coordinate figure with reference to touch coordinate; And
A maximum reference distance summation in described multiple reference distance summation is set to described first preset distance.
4. the method for claim 1, wherein said specific first judging distance is the distance in described specific touch coordinate and described multiple touch coordinate between one first touch coordinate, and described specific touch coordinate and described first touch coordinate are the two adjacent touch coordinates according to described first direction.
5. method as claimed in claim 4, it is characterized in that, it separately comprises:
When having at least two the first judging distances to be greater than described first preset distance in described multiple first judging distance, and described specific first judging distance is when being greater than described first preset distance, obtain one second judging distance corresponding to described specific touch coordinate, wherein said second judging distance is the distance in described specific touch coordinate and described multiple touch coordinate between one second touch coordinate, and described specific touch coordinate and described second touch coordinate are the two adjacent touch coordinates according to described second direction; And
When described second judging distance is not more than second preset distance, give up described specific touch coordinate.
6. method as claimed in claim 5, is characterized in that, separately comprise:
When palm is placed on a touch-screen with form of writing by a user, detect multiple reference touch coordinate and record each one first reference coordinate value with reference to touch coordinate and one second reference coordinate value, wherein said first reference coordinate value is about described first direction, and described second reference coordinate value is about described second direction;
For described multiple with reference to the every two neighboring reference touch coordinates according to described first direction in touch coordinate, obtain multiple first reference coordinate difference respectively;
For described multiple with reference to the every two neighboring reference touch coordinates according to described second direction in touch coordinate, obtain multiple second reference coordinate difference respectively;
A maximum first reference coordinate difference in described multiple first reference coordinate difference is set to described first preset distance; And
A maximum second reference coordinate difference in described multiple second reference coordinate difference is set to described second preset distance.
7. the method for claim 1, it is characterized in that, described specific first judging distance is the difference between the first coordinate figure of one first touch coordinate in the first coordinate figure of described specific touch coordinate and described multiple touch coordinate, and described specific touch coordinate and described first touch coordinate are the two adjacent touch coordinates according to described first direction.
8. method as claimed in claim 7, is characterized in that, separately comprise:
When having at least two the first judging distances to be greater than described first preset distance in described multiple first judging distance, and described specific first judging distance is when being greater than described first preset distance, obtain one second judging distance corresponding to described specific touch coordinate, wherein said second judging distance is the difference between the second coordinate figure of one second touch coordinate in the second coordinate figure of described specific touch coordinate and described multiple touch coordinate, and described specific touch coordinate and described second touch coordinate are the two adjacent touch coordinates according to described second direction; And
When described second judging distance is not more than second preset distance, give up described specific touch coordinate.
9. method as claimed in claim 8, is characterized in that, separately comprise:
When palm is placed on a touch-screen with form of writing by a user, detect multiple reference touch coordinate and record each one first reference coordinate value with reference to touch coordinate and one second reference coordinate value, wherein said first reference coordinate value is about described first direction, and described second reference coordinate value is about described second direction;
For described multiple with reference to the every two neighboring reference touch coordinates according to described first direction in touch coordinate, obtain multiple first reference coordinate difference respectively;
For described multiple with reference to the every two neighboring reference touch coordinates according to described second direction in touch coordinate, obtain multiple second reference coordinate difference respectively;
A maximum first reference coordinate difference in described multiple first reference coordinate difference is set to described first preset distance; And
A maximum second reference coordinate difference in described multiple second reference coordinate difference is set to described first preset distance.
10. the method for claim 1, is characterized in that, separately comprises:
When only there being described specific first judging distance to be greater than described first preset distance in described multiple first judging distance, export the first coordinate figure and second coordinate figure of described specific touch coordinate.
11. the method for claim 1, is characterized in that, separately comprise:
Described first preset distance is decided according to the palm of a user or writing style.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102126340A TW201504876A (en) | 2013-07-23 | 2013-07-23 | Palm rejection method |
| TW102126340 | 2013-07-23 |
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| Publication Number | Publication Date |
|---|---|
| CN104345956A true CN104345956A (en) | 2015-02-11 |
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ID=52501745
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|---|---|---|---|
| CN201310357633.3A Pending CN104345956A (en) | 2013-07-23 | 2013-08-16 | Method for preventing palm from touching by mistake |
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| TW (1) | TW201504876A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635990A (en) * | 2015-02-27 | 2015-05-20 | 上海天奕达电子科技有限公司 | Method and device for recognition of screen touch action of user |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11449177B2 (en) | 2013-12-04 | 2022-09-20 | Egalax_Empia Technology Inc. | Method and apparatus for determining whether palm line group needs to be divided |
| 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 |
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| CN102789332A (en) * | 2011-05-17 | 2012-11-21 | 义隆电子股份有限公司 | Method for identifying palm area on touch panel and updating method thereof |
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| CN104635990B (en) * | 2015-02-27 | 2017-11-14 | 上海卓易科技股份有限公司 | A kind of method and device for identifying user's touch screen |
Also Published As
| Publication number | Publication date |
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| TW201504876A (en) | 2015-02-01 |
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