CN104123026A - Method for recognizing motion direction of touch track on touch screen - Google Patents
Method for recognizing motion direction of touch track on touch screen Download PDFInfo
- Publication number
- CN104123026A CN104123026A CN201310156273.0A CN201310156273A CN104123026A CN 104123026 A CN104123026 A CN 104123026A CN 201310156273 A CN201310156273 A CN 201310156273A CN 104123026 A CN104123026 A CN 104123026A
- Authority
- CN
- China
- Prior art keywords
- touch
- point
- touch track
- motion
- coordinate
- 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
Landscapes
- User Interface Of Digital Computer (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a method for recognizing the motion direction of a touch track on a touch screen. The method includes the steps that touch points on one touch track are selected according to a preset spacing distance L0 and stored in a buffering area in a stacked mode in sequence; for the point A, which is scanned and collected through the current frame, on the touch track, the displacement vector from the point B which is the last one stored in the buffering area to the point A in the buffering area is calculated; the point C is found in the buffering area, wherein the distance between the point C and the point B is closest to a preset spacing distance L1, and the displacement vector between the point B and the point C is calculated; the included angle theta between the displacement vector from the point B to the point A and the displacement vector from the point C to the point B is calculated and compared with theta 0, if theta <=theta 0, it shows that the point A does not backtrack, and coordinates of the point A are output; otherwise, the coordinates of the point A are modified and then output, and the steps are executed until all the touch points on the touch track are recognized. According to the method, the technical problems that in the touch process, due to the influence of multiple factors, the motion direction of the recognized touch track is prone to backtracking, and the touch accuracy of the touch screen is reduced are effectively avoided.
Description
Technical field
The present invention relates to a kind of touch-screen touch track direction of motion and know method for distinguishing, belong to touch control technical field.
Background technology
Along with the development of touching technique, touch-screen as one simply and easily human-computer interaction device be used widely.At present, the kind of touch-screen mainly comprises resistive touch screen, capacitive touch screen, surface acoustic wave touch screen, optical touch screen and infrared touch panel etc.In the various application of touch control technology, user usually wishes that computing machine can understand user's various touches operation, thereby can understand user view and make rapidly corresponding response, and then provides convenient, intelligent service for user.User is a kind of conventional touch operation by touch objects such as finger, writing pencils touching detection surface sliding, in this case, computing machine judges by analyzing the motion track of touch objects on touch-screen the operation that user will carry out, can carry out correct tracking relationship to the movement locus of touch objects and can correctly respond user's operation to computing machine, so correctly catch, follow the tracks of and extremely important at the track that touches screen display touch objects.
Generally, the disposal system of touch-screen, in the time of the movement locus of identification touch objects, is basis scan-data one by one, identifies the touch point of series of discrete, then the touch point of the each frame in front and back is associated, and connects into the movement locus of touch objects.
But, because existing, the external environments such as noise disturb, and the inconsistency of infrared components causes the instability of light, and the impact of the factor such as mutually block of multiple touch points, while carrying out touch point identification, easily produce the phenomenon of touch point shake, cause in the motion process of touch point (especially in curvilinear motion process), the touch track of output departs from real touch track, the phenomenon that to be touch point return along the tangent line of movement locus or nearly tangential direction, this situation is called as rollback phenomenon, so just cause the position coordinates of the touch point of identifying to have deviation with the position coordinates of real touch point, thereby the movement locus while causing formed touch track to be not exclusively touch objects touch screen, and then have influence on touch precision, cause identification error, affect user's use impression.
Summary of the invention
Technical matters to be solved by this invention is because various factors causes in the motion process of touch point in prior art, the touch track direction of motion of identification easily produces rollback, the technical matters that causes the touch precision of touch-screen to reduce, thus provide a kind of can rediscover touch track, improved the touch-screen touch track direction of motion that touches precision and known method for distinguishing.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of touch-screen touch track direction of motion is known method for distinguishing, comprises the steps:
S1: the multiframe scan-data of collection touch, according to the described multiframe scan-data output touch track gathering, for the touch point in a touch track according to predetermined interval distance L
0choose touch point and the coordinate of the described touch point of choosing is stored in to buffer zone according to sequencing stacking-type;
S2: in the time that the number of the touch point of described buffer stores equals N, for the some A of the present frame scanning collection in this touch track, calculate the some B that finally deposits in the described buffer zone displacement vector to described some A, wherein said N is positive integer;
S3: find from described buffer zone apart from some B distance and approach predetermined interval distance most for L
1some C, calculate described some C to the displacement vector of described some B;
S4: calculate the some B that finally deposits in the described buffer zone angle theta to the displacement vector of described some A and described some C to the displacement vector of described some B, more described angle theta and default angle threshold value θ
0size,
If θ≤θ
0, determine that described some A do not have rollback, export the coordinate of described some A, whether the distance between the some B simultaneously finally depositing in judging point A and described buffer area equals L
0, the distance between the some B finally depositing in described some A and described buffer area equals L
0time, the coordinate of an A is stored in buffer zone, return to step 2, until identified all touch points of this touch track simultaneously;
If θ > is θ
0, determine that described some A belongs to rollback phenomenon, the not coordinate of output point A returns to step 2 simultaneously, until identified all touch points of this touch track.
In the time that definite described some A belongs to rollback phenomenon, described step S4 also comprises touch track direction of motion correction step:
Remember after described some A revises to be that point is A ' (X
a ', Y
a '), the coordinate of some B is (X
b, Y
b), the coordinate of some C is (X
c, Y
c), in the previous frame scan period, the point of output is D(X
d, Y
d);
Judge X
b– X
csize, if X
b– X
c>0, at X
a '=X
d+ Dist X, otherwise X
a '=X
d-Dist X; Judge Y
b– Y
csize, if Y
b– Y
c>0, at Y
a '=Y
d+ Dist Y, otherwise Y
a '=Y
d-Dist Y; Output point A ' (X
a ', Y
a ') coordinate, wherein, described Dist X represents the corrected range of directions X, Dist Y represents the corrected range of Y-direction.
In the time that definite described some A belongs to rollback phenomenon, described step S4 also comprises touch track direction of motion correction step:
Remember after described some A revises to be that point is A ' (X
a ', Y
a '), in the previous frame scan period, the point of output is D(X
d, Y
d);
Described some A ' (X
a ', Y
a ') coordinate X
a '=X
d, Y
a '=Y
d, output is put A ' (X after revising
a ', Y
a ') coordinate.
Described angle threshold value θ
0value be 60
0≤ θ
0≤ 90
0.
Described spacing distance L
0value be 2mm≤L
0≤ 4mm.
The described natural number that is 40≤N≤60 when the length N value of buffer zone.
Described spacing distance is L
1value be 8mm≤L
1≤ 10mm.
Described angle threshold value θ
0=75
0or θ
0=80
0.
Described Dist X=1, Dist Y=1, wherein " 1 " is a unit length.
Described spacing distance L
0=3mm;
The number N=50 of the touch point of described buffer stores;
Described spacing distance is L
1=9mm.
Technique scheme of the present invention has the following advantages compared to existing technology:
Touch-screen touch track direction of motion of the present invention is known method for distinguishing, comprise the steps: the multiframe scan-data of collection touch, according to the described multiframe scan-data output touch track gathering, for the touch point in a touch track according to predetermined interval distance L
0choose touch point and the coordinate of the described touch point of choosing is stored in to buffer zone according to sequencing stacking-type; In the time that the number of the touch point of described buffer stores equals N, for the some A of the present frame scanning collection in this touch track, calculate the some B that finally deposits in the described buffer zone displacement vector to described some A; From described buffer zone, find apart from some B distance and approach predetermined interval distance most for L
1some C, calculate described some C to the displacement vector of described some B; Calculate the some B that finally deposits in the described buffer zone angle theta to the displacement vector of described some A and described some C to the displacement vector of described some B, more described angle theta and default angle threshold value θ
0size, if θ≤θ
0, think that an A does not have rollback, the coordinate of output point A; Otherwise the coordinate of output point A after revising, until identified all touch points of this touch track.Said method is easy flexibly, reasonable in design, be skillfully constructed, control accuracy is high, and operand is little, be easy to realize, effectively avoid in prior art because various factors causes in touch process, the touch track direction of motion of identification easily produces rollback, the technical matters that causes the touch precision of touch-screen to reduce.
Brief description of the drawings
For content of the present invention is more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the method flow diagram of touch-screen touch track direction of motion identification of the present invention.
Embodiment
Embodiment 1:
The method flow diagram of a kind of touch-screen touch track direction of motion identification that the present embodiment provides, as shown in Figure 1, it comprises the steps:
The multiframe scan-data of S1 collection touch, according to the described multiframe scan-data output touch track gathering, for the touch point in a touch track according to predetermined interval distance L
0choose touch point and the coordinate of the described touch point of choosing is stored in to buffer zone according to sequencing stacking-type.Described predetermined interval distance L
0value is 2mm≤L
0≤ 4mm, the factor that affects the Infrared density of described infrared touch panel comprises scan mode, product hierarchy, Product Precision of lamp spacing, the Infrared of infrared transmitting tube and described infrared receiving tube described in each etc., the factor of Infrared density that what above-mentioned factor was known to the skilled person affect.In the present embodiment, L
0=3mm.
As other embodiment, L
0can choose 2mm, 2.5mm, 3.5mm, 4mm, described predetermined interval distance L
0choosing with the movement locus of test touch object of value has relation, if the ratio of curvature of curve movement is larger, to select so smaller parameter, motion approximate straight line motion between adjacent 2 that guarantee is chosen, if curve movement curvature is smaller, can suitably select so larger parameter.
S2: in the time that the number of the touch point of described buffer stores equals N, for the some A point A (X of the present frame scanning collection in this touch track
a, Y
a), calculate the above some A (X of this track
a, Y
a) and the interior some B (X obtaining of a upper scan period
b, Y
b) displacement vector
the length that wherein N is described buffer zone, the coordinate storage of a touch point takies a storage unit, and in the time that the number of the touch point of described buffer stores equals N, all storage unit of described buffer zone are all filled with.The natural number that the number N value of the touch point of described buffer stores is 40≤N≤60, in the present embodiment, N is 50.
In this instructions, the scan-data obtaining in the scan period is called to frame data, the data that the current scan period is obtained are processed namely current frame data are processed.
As other embodiment, N can choose 40,60 equivalences.
S3: finding from buffer zone and approaching predetermined interval distance most apart from some B distance is L
1some C (X
c, Y
c), B (X described in calculation level
b, Y
b) and described some C (X
c, Y
c) displacement vector
described predetermined interval distance is L
1value be 7mm≤L
1≤ 12mm is general according to the selecting factors such as the size of product hierarchy, Product Precision and touch-screen, the distance L of predetermined interval described in the present embodiment
1value be 9mm.
As other embodiment, L
1can choose 7mm, 8mm, 10mm, 11mm, 12mm equivalence, if the ratio of touch objects motion is very fast, or the ratio of precision of touch-screen poor (shake is larger), L
1need value larger, to can better ensure curvilinear motion trend; Otherwise described predetermined interval distance is L
1value relatively little.
S4: calculate described displacement vector
with described displacement vector
angle theta, more described angle theta and default angle threshold value θ
0size:
If θ≤θ
0, determine that described some A do not have rollback, export the coordinate of described some A, whether the distance between the some B simultaneously finally depositing in judging point A and described buffer area equals L
0, the distance between the some B finally depositing in described some A and described buffer area equals L
0time, the coordinate of an A is stored in buffer zone, return to step 2, until identified all touch points of this touch track simultaneously;
If θ > is θ
0, determine that described some A belongs to rollback phenomenon, the not coordinate of output point A returns to step 2 simultaneously, until identified all touch points of this touch track.
Described angle threshold value θ
0value be 60
0≤ θ
0≤ 90
0.The threshold value of angle described in the present embodiment θ
0value be 75
0.
In other embodiments, according to the accuracy requirement of product, described angle threshold value θ
0also may be selected to be 60
0, 65
0, 70
0, 85
0, 90
0equivalence, as the angle threshold value θ of institute
0be 60
0time, the position coordinates of the touch point of identifying approaches with the position coordinates of real touch point most, and touch precision is the highest, user's use impression is best.
As other embodiment, in the time that definite described some A belongs to rollback phenomenon, described step S4 also comprises touch track direction of motion correction step:
Remember after described some A revises to be that point is A ' (X
a ', Y
a '), in the previous frame scan period, the point of output is D(X
d, Y
d);
Described some A ' (X
a ', Y
a ') coordinate X
a '=X
d, Y
a '=Y
d, output is put A ' (X after revising
a ', Y
a ') coordinate.
Embodiment 2:
The present embodiment is as preferred embodiment, and as shown in Figure 1, it comprises the steps: the method flow diagram of a kind of touch-screen touch track direction of motion identification providing
S1: the multiframe scan-data of collection touch, according to the described multiframe scan-data output touch track gathering, for the touch point in a touch track according to predetermined interval distance L
0choose touch point and the coordinate of the described touch point of choosing is stored in to buffer zone according to sequencing stacking-type.Wherein predetermined interval distance L
0for 3mm.
S2: in the time that the number of the touch point of described buffer stores equals 50, for the some A (X of the present frame scanning collection in this touch track
a, Y
a), calculate the above some A (X of this track
a, Y
a) and the previous frame scan period in obtain some B (X
b, Y
b) displacement vector
S3: find from described buffer zone apart from some B distance and approach the some C (X that predetermined interval distance is 9mm most
c, Y
c), B (X described in calculation level
b, Y
b) and described some C (X
c, Y
c) displacement vector
S4: calculate the some B that finally deposits in the described buffer zone displacement vector to described some A
y
a-Y
b) and described some C to the displacement vector of described some B
angle theta, more described angle theta and default angle threshold value θ
0size:
If θ≤θ
0, determine that described some A do not have rollback, export the coordinate of described some A, whether the distance between the some B simultaneously finally depositing in judging point A and described buffer area equals L
0, the distance between the some B finally depositing in described some A and described buffer area equals L
0time, deposit the coordinate of an A in buffer zone, return to step 2, until identified all touch points of this touch track simultaneously.Wherein said angle threshold value θ
0be 75
0;
If θ > is θ
0, determine that described some A belongs to rollback phenomenon, the not coordinate of output point A returns to step 2 simultaneously, until identified all touch points of this touch track.Wherein said angle threshold value θ
0be 75
0.
In the present embodiment, in the time that definite described some A belongs to rollback phenomenon, described step S4 also comprises touch track direction of motion correction step:
Remember after described some A revises to be that point is A ' (X
a ', Y
a '), the coordinate of some B is (X
b, Y
b), the coordinate of some C is (X
c, Y
c), in the previous frame scan period, the point of output is D(X
d, Y
d);
Judge X
b– X
csize, if X
b– X
c>0, at X
a '=X
d+ 1, otherwise X
a '=X
d-1; Judge Y
b– Y
csize, if Y
b– Y
c>0, at Y
a '=Y
d+ 1, otherwise Y
a '=Y
d-1; Output point A ' (X
a ', Y
a ') coordinate.Wherein " 1 " is a unit length.
Said method is easy flexibly, reasonable in design, be skillfully constructed, control accuracy is high, and operand is little, be easy to realize, effectively avoid in prior art because various factors causes in the motion process of touch point, the touch track direction of motion of identification easily produces rollback, the technical matters that causes the touch precision of touch-screen to reduce.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being extended out thus or variation are still among the protection domain in the invention.
Claims (10)
1. touch-screen touch track direction of motion is known a method for distinguishing, it is characterized in that, comprises the steps:
S1: the multiframe scan-data of collection touch, according to the described multiframe scan-data output touch track gathering, for the touch point in a touch track according to predetermined interval distance L
0choose touch point and the coordinate of the described touch point of choosing is stored in to buffer zone according to sequencing stacking-type;
S2: in the time that the number of the touch point of described buffer stores equals N, for the some A of the present frame scanning collection in this touch track, calculate the some B that finally deposits in the described buffer zone displacement vector to described some A, wherein said N is positive integer;
S3: find from described buffer zone apart from some B distance and approach predetermined interval distance most for L
1some C, calculate described some C to the displacement vector of described some B;
S4: calculate the some B that finally deposits in the described buffer zone angle theta to the displacement vector of described some A and described some C to the displacement vector of described some B, more described angle theta and default angle threshold value θ
0size,
If θ≤θ
0, determine that described some A do not have rollback, export the coordinate of described some A, whether the distance between the some B simultaneously finally depositing in judging point A and described buffer area equals L
0, the distance between the some B finally depositing in described some A and described buffer area equals L
0time, the coordinate of an A is stored in buffer zone, return to step 2, until identified all touch points of this touch track simultaneously;
If θ > is θ
0, determine that described some A belongs to rollback phenomenon, the not coordinate of output point A returns to step 2 simultaneously, until identified all touch points of this touch track.
2. touch-screen touch track direction of motion according to claim 1 is known method for distinguishing, it is characterized in that, in the time that definite described some A belongs to rollback phenomenon, described step S4 also comprises touch track direction of motion correction step:
Remember after described some A revises to be that point is A ' (X
a ', Y
a '), the coordinate of some B is (X
b, Y
b), the coordinate of some C is (X
c, Y
c), in the previous frame scan period, the point of output is D(X
d, Y
d);
Judge X
b– X
csize, if X
b– X
c>0, at X
a '=X
d+ Dist X, otherwise X
a '=X
d-Dist X; Judge Y
b– Y
csize, if Y
b– Y
c>0, at Y
a '=Y
d+ Dist Y, otherwise Y
a '=Y
d-Dist Y; Output point A ' (X
a ', Y
a ') coordinate, wherein, described Dist X represents the corrected range of directions X, Dist Y represents the corrected range of Y-direction.
3. touch-screen touch track direction of motion according to claim 2 is known method for distinguishing, it is characterized in that: in the time that definite described some A belongs to rollback phenomenon, described step S4 also comprises touch track direction of motion correction step:
Remember after described some A revises to be that point is A ' (X
a ', Y
a '), in the previous frame scan period, the point of output is D(X
d, Y
d);
Described some A ' (X
a ', Y
a ') coordinate X
a '=X
d, Y
a '=Y
d, output is put A ' (X after revising
a ', Y
a ') coordinate.
4. touch-screen touch track direction of motion according to claim 1 is known method for distinguishing, it is characterized in that: described angle threshold value θ
0value be 60
0≤ θ
0≤ 90
0.
5. touch-screen touch track direction of motion according to claim 1 is known method for distinguishing, it is characterized in that: described spacing distance L
0value be 2mm≤L
0≤ 4mm.
6. touch-screen touch track direction of motion according to claim 1 is known method for distinguishing, it is characterized in that: the natural number that the number N of the touch point of described buffer stores is 40≤N≤60.
7. know method for distinguishing according to the arbitrary described touch-screen touch track direction of motion of claim 1-6, it is characterized in that: described spacing distance is L
1value be 8mm≤L
1≤ 10mm.
8. know method for distinguishing according to the arbitrary described touch-screen touch track direction of motion of claim 1-7, it is characterized in that: described angle threshold value θ
0=75
0or θ
0=80
0.
9. know method for distinguishing according to the arbitrary described touch-screen touch track direction of motion of claim 1-8, it is characterized in that: described Dist X=1, Dist Y=1, wherein " 1 " is a unit length.
10. know method for distinguishing according to the touch-screen touch track direction of motion described in claim 1-9, it is characterized in that:
Described spacing distance L
0=3mm;
The number N=50 of the touch point of described buffer stores;
Described spacing distance is L
1=9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156273.0A CN104123026B (en) | 2013-04-28 | 2013-04-28 | A kind of touch-screen touch track direction of motion knows method for distinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156273.0A CN104123026B (en) | 2013-04-28 | 2013-04-28 | A kind of touch-screen touch track direction of motion knows method for distinguishing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104123026A true CN104123026A (en) | 2014-10-29 |
| CN104123026B CN104123026B (en) | 2017-12-15 |
Family
ID=51768461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310156273.0A Expired - Fee Related CN104123026B (en) | 2013-04-28 | 2013-04-28 | A kind of touch-screen touch track direction of motion knows method for distinguishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104123026B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547398A (en) * | 2016-10-19 | 2017-03-29 | 南京仁光电子科技有限公司 | A kind of method for repairing touch-control system contact track mistake |
| CN108696271A (en) * | 2018-05-28 | 2018-10-23 | 珠海慧联科技有限公司 | A kind of slip gesture recognition methods and system based on capacitance touch button |
| CN114452506A (en) * | 2022-01-28 | 2022-05-10 | 清华大学深圳国际研究生院 | Method for guiding user to be minded and meditation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903834A (en) * | 2007-12-20 | 2010-12-01 | Dav公司 | The method and the corresponding control module that are used for the angle variation in the lip-deep control of senses touch path |
| CN102236438A (en) * | 2010-04-21 | 2011-11-09 | 上海三旗通信科技有限公司 | Algorithm and operating mode for identifying track on touch pad of mobile terminal |
| US20120075203A1 (en) * | 2010-09-27 | 2012-03-29 | Jao-Ching Lin | Method for analyzing two-dimensional track to generate at least one non-linear index and touch control module using the same |
-
2013
- 2013-04-28 CN CN201310156273.0A patent/CN104123026B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903834A (en) * | 2007-12-20 | 2010-12-01 | Dav公司 | The method and the corresponding control module that are used for the angle variation in the lip-deep control of senses touch path |
| CN102236438A (en) * | 2010-04-21 | 2011-11-09 | 上海三旗通信科技有限公司 | Algorithm and operating mode for identifying track on touch pad of mobile terminal |
| US20120075203A1 (en) * | 2010-09-27 | 2012-03-29 | Jao-Ching Lin | Method for analyzing two-dimensional track to generate at least one non-linear index and touch control module using the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547398A (en) * | 2016-10-19 | 2017-03-29 | 南京仁光电子科技有限公司 | A kind of method for repairing touch-control system contact track mistake |
| CN106547398B (en) * | 2016-10-19 | 2018-10-12 | 南京仁光电子科技有限公司 | A method of repairing touch-control system contact track mistake |
| CN108696271A (en) * | 2018-05-28 | 2018-10-23 | 珠海慧联科技有限公司 | A kind of slip gesture recognition methods and system based on capacitance touch button |
| CN108696271B (en) * | 2018-05-28 | 2022-02-25 | 珠海慧联科技有限公司 | Sliding gesture recognition method and system based on capacitive touch keys |
| CN114452506A (en) * | 2022-01-28 | 2022-05-10 | 清华大学深圳国际研究生院 | Method for guiding user to be minded and meditation |
| CN114452506B (en) * | 2022-01-28 | 2023-10-13 | 清华大学深圳国际研究生院 | Method for guiding user to positively think about meditation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104123026B (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7256773B2 (en) | Detection of a dwell gesture by examining parameters associated with pen motion | |
| CN102662462B (en) | Electronic installation, gesture identification method and gesture application process | |
| CN106575170B (en) | Method for executing touch action in touch sensitive device | |
| CN103294401A (en) | Icon processing method and device for electronic instrument with touch screen | |
| CN105955525B (en) | Touch track tracking, device and display equipment | |
| CN103902086A (en) | Curve fitting based touch trajectory smoothing method and system | |
| US20120326995A1 (en) | Virtual touch panel system and interactive mode auto-switching method | |
| US20140210780A1 (en) | Touch Screen Controller and Method for Controlling Thereof | |
| CN104049874B (en) | The touch person's handwriting generation method of pointer and system | |
| CN103218090A (en) | System and method for identifying inputs input to mobile device with touch panel | |
| CN102736838B (en) | The recognition methods of multi-point rotating movement and device | |
| TWI581171B (en) | Method and device for identifying multipoint gestures | |
| US9779292B2 (en) | System and method for interactive sketch recognition based on geometric contraints | |
| WO2019062243A1 (en) | Identification method and apparatus for touch operation, and electronic device | |
| CN103513811A (en) | Touch trajectory tracking method | |
| CN102073414A (en) | Multi-touch tracking method based on machine vision | |
| CN104123026A (en) | Method for recognizing motion direction of touch track on touch screen | |
| Jia et al. | Real‐time hand gestures system based on leap motion | |
| KR101467295B1 (en) | Information input device and method | |
| CN113342208B (en) | Railway line selection method based on multi-point touch equipment, terminal and storage medium | |
| CN103150114B (en) | A kind of convenient input method for touch screen | |
| CN109933276A (en) | A kind of determination method accidentally touched based on hand sleeve in touch large-size screen monitors electronic whiteboard handwriting | |
| CN105630256B (en) | A kind of touch key-press recognition methods of capacitance touching control screen | |
| CN103809912A (en) | Tablet personal computer based on multi-touch screen | |
| CN106648339A (en) | Window switching method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20180428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |