CN103246404A - Two-point touch track correcting Method and two-point touch track correcting device on basis of movement identification - Google Patents
Two-point touch track correcting Method and two-point touch track correcting device on basis of movement identification Download PDFInfo
- Publication number
- CN103246404A CN103246404A CN2013101578137A CN201310157813A CN103246404A CN 103246404 A CN103246404 A CN 103246404A CN 2013101578137 A CN2013101578137 A CN 2013101578137A CN 201310157813 A CN201310157813 A CN 201310157813A CN 103246404 A CN103246404 A CN 103246404A
- Authority
- CN
- China
- Prior art keywords
- point
- effective node
- touch
- touch point
- node
- 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)
- User Interface Of Digital Computer (AREA)
Abstract
The invention discloses a two-point touch track correcting method and a two-point touch track correcting device on the basis of movement identification. The two-point touch track correcting method includes acquiring coordinates and the velocity direction of a current available node of a touch point moving track; judging whether an included angle between the velocity direction of the available node and each direction side which is defined as a straight line between the available node and a corresponding next candidate touch point of the moving track is smaller than a threshold value R or not; and selecting the candidate touch point corresponding to the direction side with the smallest included angle from the direction sides with the included angles smaller than the threshold value R as a next available node of the moving track. The two-point touch track correcting method and the two-point touch track correcting device have the advantages that virtual multi-point algorithms and devices can be improved by the scheme for recording velocity directions of the touch track and selecting the optimal candidate touch point, the accuracy of the traditional multi-point touch operation is improved, and accordingly good touch experience is realized for uses of traditional infrared touch screens.
Description
Technical field
The present invention relates to human-computer interaction technology, particularly relating to 2 touch track correcting methods and the device of motion identification.
Background technology
Because the infrared touch panel technology has suitable large-screen display equipment, volume is little, stability is strong, favourable advantages such as light resistance height and low cost, occupy the principal market at the giant-screen touching technique, common infrared touch panel is by launching infrared light to the opposite side inductor from side, the light situation of blocking by scanning inductor judges whether to touch, as shown in Figure 1, in the motion process of multiple point touching, because light hiding relation, system will obtain true point and be referred to as the coordinate of " terrible point " in the industry, can't capture the wherein true coordinate of touch point accurately, thereby the effect that realizes multiple point touching is relatively poor, to carrying out the picture rotary manipulation in the system that supports multipoint operation, the picture sense of rotation is opposite with the touch sense of rotation, the fault rate that its sense of rotation is identical can reach more than 50%, and two hands are rule simultaneously, and broken string can appear in lines, phenomenons such as wire jumper.
If the user need experience better multipoint operation effect, prior art uses following several scheme to address this problem usually.One, the traditional touch apparatus of upgrading is new multiple point touching frame, utilizes the optical principle of transmitting terminal and receiving end one-to-many to realize the multiple point touching technology.Two, increase servicing unit, use the second cover positioning system, as the camera corrective system, by the data contrast of two touch apparatus, get rid of terrible point, export true point.The replacement of products hardware that first kind of scheme and second kind of scheme will have oneself is complicated with the method for obtaining multiple spot, and does not taking cost into account meet the interests requirement.
Summary of the invention
Based on this, be necessary at the problems referred to above, a kind of 2 touch track correcting methods and device of the identification of moving is provided, can improve the accuracy of the multipoint operation that tradition touches, and need not to increase extra hardware and drop into, save cost.
A kind of 2 touch track correcting methods of the identification of moving comprise:
Obtain the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
Place, next candidate touch point straight line with described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
In the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit.
Correspondingly, a kind of 2 touch track correcting devices of the identification of moving comprise:
The direction of motion acquiring unit is used for obtaining the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
The deflection judging unit that links to each other with described direction of motion acquiring unit, place, the next candidate touch point straight line that is used for described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
Choose the unit with the available point that described deflection judging unit links to each other, be used on the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit.
Implement the present invention, have following beneficial effect:
The present invention need not to increase extra hardware and drops into, and judges the velocity reversal of next candidate touch point by the velocity reversal of touch point running orbit, thereby selects next authentic and valid touch node.Because the present invention is the judgement of carrying out effective node by the velocity reversal in the operational process of touch point, compared with other software algorithms, more can improve the accuracy of the multipoint operation of tradition touch, bring better touch to experience for the user of traditional infrared touch-screen.
Description of drawings
Fig. 1 is the generation schematic diagram of ghost point;
Fig. 2 is the process flow diagram of 2 touch track correcting methods of the present invention's campaign identification;
Fig. 3 is the embodiment synoptic diagram of 2 touch track correcting methods of the present invention's campaign identification;
Fig. 4 is the embodiment process flow diagram of 2 touch track correcting methods of the present invention's campaign identification;
Fig. 5 is the synoptic diagram of 2 touch track correcting devices of the present invention's campaign identification;
Fig. 6 is the embodiment synoptic diagram of 2 touch track correcting devices of the present invention's campaign identification.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the generation schematic diagram of ghost point; As shown in Figure 1, in the motion process of multiple point touching, because light hiding relation, system will obtain true point and be referred to as the coordinate of " terrible point " in the industry, can't capture the wherein true coordinate of touch point accurately, thereby the effect that realizes multiple point touching is relatively poor, to carrying out the picture rotary manipulation in the system that supports multipoint operation, the picture sense of rotation is opposite with the touch sense of rotation, the fault rate that its sense of rotation is identical can reach more than 50%, and two hands are rule simultaneously, and phenomenons such as broken string, wire jumper can appear in lines.Comparatively preferred mode is by calculating the set of current touch point and original tracing point in the industry, judge by choosing bee-line whether the touch point is authentic and valid touch point, but when the bee-line determination methods becomes level or perpendicular line in the touch point, can not effectively get rid of terrible point.In order further to improve the accuracy of traditional multipoint operation that touches, get rid of terrible point in all directions, bring better touch to experience for the user of traditional infrared touch-screen.The invention provides correcting method as shown in Figure 2, this method need not to increase extra hardware and drops into, and saves cost.
Fig. 2 is the process flow diagram of 2 touch track correcting methods of the present invention's campaign identification, comprising:
S101: obtain the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
S102: place, the next candidate touch point straight line with described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
S103: in the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit.
By obtaining effective node coordinate of touch point running orbit La, and the velocity reversal of current effective node.Because the ghost point produces in the operational process of touch point, static touch point can not produce terrible point, the initial touch point of running orbit La can not produce terrible point yet, by adjacent two the effective nodes that record on the described running orbit, can obtain velocity, wherein velocity comprises velocity magnitude and velocity reversal.Progressively deduce by initial velocity reversal, can choose described running orbit La each effective node in operational process one by one.Particularly, judge by calculating this orbiting motion angular separation Ra, described angular separation Ra is that place, the next candidate touch point straight line with current effective node and described running orbit is a direction limit, the angle that forms between all directions limit and the described velocity reversal.Default new speed angle threshold values R is as the difference that judges whether to meet the optimal movement direction.Judge the magnitude relationship between all directions angle Ra and the threshold value R: in the middle of all directions angle less than threshold value R, select to have the candidate touch point of direction limit correspondence of minimum angular separation as next effective node of described running orbit La.
Step by step, the effective node of the described next one selected as current effective node, had the direction limit of minimum angle as current velocity reversal by described.Along with the life of prolonging of described movement locus La, choose authentic and valid touch node one by one.
The present invention can judge each authentic and valid touch node of running orbit only by the velocity reversal of touch point.Because be to compare judgement by the angular separation Ra in the running orbit of touch point, so, even when touch point one-tenth level or perpendicular line, also can effectively get rid of terrible point.Further improve the accuracy of the multipoint operation of tradition touch, and need not to increase extra hardware input, save cost.
Fig. 3 is the embodiment synoptic diagram of 2 touch track correcting methods of the present invention's campaign identification;
Fig. 4 is the embodiment process flow diagram of 2 touch track correcting methods of the present invention's campaign identification;
Be described further below in conjunction with the embodiment of the invention of Fig. 3, Fig. 4.
S201: the initial touch point of the described running orbit of mark is first effective node;
S202: since second effective node, store the coordinate position of each effective node of described running orbit, and corresponding velocity reversal;
S203: obtain the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
S204: place, the next candidate touch point straight line with described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
S205: give up described angle greater than the candidate touch point of the direction limit correspondence of threshold value R;
S206: in the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit;
S207: according to the coordinate data of the effective node of the described next one, the candidate touch point of the next effectively paired angular dependence of node of selection and described running orbit is as next effective node of another running orbit.
The phenomenon that ghost is put occurs at common infrared screen in the operational process of 2 touches, authentic and valid touch node and terrible point are identified in the variation of the orientation angle when the present invention moves by the identification touch operation, realize two stable point operation schemes.
For 2 touches, first-selected from touch apparatus obtain original touch two point data Xa, Ya, Xb, Yb}, form point coordinate data (Xa, Ya), (Xb, Yb), (Xa, Yb), (Xb, Ya); Then, divide into groups by two point coordinate and the diagonal angle symmetric relation of ghost point, obtain first group (Xa, Ya), (Xb, Yb) or second group (Xa, Yb), (Xb Ya), makes up the workload that identification brings entirely to reduce coordinate points.At last, adopt the inventive method, the angular separation of comparison touch points running orbit and the velocity reversal of current formation are judged next candidate touch point, with the next authentic and valid touch node of angular separation identification of the formation of minimum.Concrete implementation step:
The initial touch point of the described running orbit of mark is first effective node;
Since second effective node, store the coordinate position of each effective node of described running orbit, and corresponding velocity reversal;
When the coordinate position of current effective node and a last effective node is identical, with the velocity reversal of the described last effective node correspondence velocity reversal as described current effective node.
Because static touch point and initial touch point can not produce terrible point, so, first effective node can easily be obtained.Since second effective node, set up tables of data, preserve the velocity reversal of movement locus.After movement locus calculates real effectively node at every turn, use in front of current effective node coordinate of touch track La once effective node coordinate to try to achieve the velocity reversal of current effective node, preserve in the tables of data, so that from this tables of data, transfer or deposit in coordinate position and the velocity reversal of each effective node.For the rest point in the running orbit, for avoiding occurring broken string or wire jumper phenomenon, with the velocity reversal of the last effective node correspondence velocity reversal as described current rest point, guarantee that the continuity of this running orbit is judged.
As shown in Figure 3, this correcting method is put terrible some problem at the string that is 2 identifications, raw data (the xa of program input touch point, ya, xb, yb), be true touch point A(xa in the data resolution module function decomposition into analytic function, ya), B(xb, yb) and ghost point A ' (xa, yb), B ' (xb, ya), with actual touch point coordinate A, B and terrible point coordinate A ', B ' is through screening for the first time, resolve into two groups of point coordinate data A, B and A ', B ', respectively with point coordinate data A, B, A ', B ' is as the candidate touch point, reads the data of current effective node of storage in the tables of data that oneself has, comprise current effective node A1 coordinate with and velocity reversal (dotted line A2A1).Be a direction limit with described current effective node A1 and place, the next candidate touch point straight line of described running orbit La, ready-made angular separation (Ra1a between all directions limit and the described velocity reversal (dotted line A2A1), Ra1a ', Ra1b, Ra1b '), less than the next preferred touch point as touch track La, the candidate touch point of threshold value R, give up described angle greater than the candidate touch point of the direction limit correspondence of threshold value R to judge all directions angle.If after giving up, preferred touch point quantity is also greater than 1, then select to have the corresponding candidate touch point A in the direction limit (A1A) of angular separation minimum (Ra1a) as the next effectively node of described running orbit, and with this direction limit (A1A) as new velocity reversal, and the coordinate of new effective node A is preserved in the tables of data of described running orbit La into.
In like manner, select the next effectively node as another running orbit Lb with the candidate touch point B of the paired angular dependence of A, can all be different from the touch point B of an A from horizontal ordinate to angular dependence, identify and choose.Own selection result A, B coordinate are preserved respectively in the tables of data of into running orbit La, Lb.Saved the computation process of running orbit Lb.
Giving up described angle has multiple greater than the mode of the candidate touch point of the direction limit correspondence of threshold value R, can be directly with the angular deviation value between direction limit and the velocity reversal, take absolute value again and obtain one greater than zero angular separation, compare with this angular separation and threshold value R, give up the candidate touch point greater than the direction limit correspondence of threshold value R.For the ease of calculating, also can adopt simple multiplying mode to judge:
Calculate all directions limit to the angular deviation value of described velocity reversal;
Judge square value and the R of all angles deviate
2Between size, give up greater than R
2The candidate touch point of direction limit correspondence.
Preferably, from tables of data, get A2 to the deflection Ra2a1 of the velocity reversal of A1, use following manner to obtain candidate direction limit L (A1, A), L (A1, A '), L (A1, B), L (A1, B ') and L (A2, A1) square value V1, V2, V3, the V4 of Dui Ying angular deviation value give up greater than threshold values R
2The candidate direction limit:
V1=(Ra1a-Ra2a1)
2
V2=(Ra1a’-Ra2a1)
2
V3=(Ra1b-Ra2a1)
2
V4=(Ra1b’-Ra2a1)
2
By square operation, avoided the angular deviation value situation of negative value to occur.If the candidate direction limit quantity after giving up is greater than 1, for example remain two square values of V1, V2, then get the candidate touch point A1 of minimum value V1 correspondence as the next effectively node of touch track La, and the velocity reversal of A1 and coordinate position are preserved in the tables of data of touch track La into.
The grouping candidate coordinate relation that produces by the packet module again, the B coordinate points is as the target output point on the same group, and (B1, the velocity reversal of motion B) are preserved in the tables of data of track Lb to calculate L.
The present invention is better improved at 2 writing effects, does not occur string point or hop substantially.Use the surface of Microsoft picture scan tool to carry out the rotary manipulation of picture, abnormal occurrencies such as reverse skip do not appear in picture substantially.Picture amplified the multi-point gestures operation such as dwindle, realize the multipoint operation function by expectation substantially.
Fig. 5 is the synoptic diagram of 2 touch track correcting devices of the present invention's campaign identification, comprising:
The direction of motion acquiring unit is used for obtaining the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
The deflection judging unit that links to each other with described direction of motion acquiring unit, place, the next candidate touch point straight line that is used for described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
Choose the unit with the available point that described deflection judging unit links to each other, be used on the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit.
Fig. 5 is corresponding with Fig. 2, identical among the figure in the method for operation of each unit and the method.
Fig. 6 is the embodiment synoptic diagram of 2 touch track correcting devices of the present invention's campaign identification.
As shown in Figure 6, comprising:
Choose the packet unit that the unit links to each other with described available point, be used for the coordinate data according to the effective node of the described next one, the candidate touch point of the next effectively paired angular dependence of node of selection and described running orbit is as next effective node of another running orbit.
In the middle of embodiment, comprising therein: the available point storage unit that links to each other with described direction of motion acquiring unit, wherein,
Described available point storage unit comprises the starting point record cell, and the initial touch point that is used for the described running orbit of mark is first effective node; The track record unit that links to each other with described starting point record cell is used for since second effective node, stores the coordinate position of each effective node of described running orbit, and corresponding velocity reversal; The fixed point processing unit that links to each other with described track record unit, be used for current effective node with on the coordinate position of effective node when identical, with the velocity reversal of the described last effective node correspondence velocity reversal as described current effective node.
In the middle of embodiment, described deflection judging unit comprises therein:
The unit is chosen in the touch point, is used for giving up described angle greater than the candidate touch point of the direction limit correspondence of threshold value R.
In the middle of another one embodiment, described deflection judging unit also comprises:
Choose the deviation computing unit that the unit links to each other with described touch point, be used for calculating all directions limit to the angular deviation value of described velocity reversal;
Square comparing unit that links to each other with described deviation computing unit is for the square value and the R that judge all angles deviate
2Between size, give up greater than R
2The candidate touch point of direction limit correspondence.
Fig. 6 is corresponding with Fig. 4, identical among the figure in the method for operation of each unit and the method.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. 2 the touch track correcting methods of identification that move is characterized in that, comprising:
Obtain the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
Place, next candidate touch point straight line with described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
In the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit.
2. 2 touch track correcting methods of motion according to claim 1 identification is characterized in that, select to comprise after the step of candidate touch point as the next effectively node of described running orbit of direction limit correspondence of described angle minimum:
According to the coordinate data of the effective node of the described next one, the candidate touch point of the next effectively paired angular dependence of node of selection and described running orbit is as next effective node of another running orbit.
3. 2 touch track correcting methods of motion identification according to claim 1 and 2 is characterized in that, obtain before the step of the current effective node coordinate of touch point running orbit, comprising:
The initial touch point of the described running orbit of mark is first effective node;
Since second effective node, store the coordinate position of each effective node of described running orbit, and corresponding velocity reversal;
When the coordinate position of current effective node and a last effective node is identical, with the velocity reversal of the described last effective node correspondence velocity reversal as described current effective node.
4. according to 2 touch track correcting methods of each described motion identification of claim 1 to 3, it is characterized in that the angle between judgement all directions limit and the described velocity reversal also comprises less than the step of threshold value R:
Give up described angle greater than the candidate touch point of the direction limit correspondence of threshold value R.
5. 2 touch track correcting methods of motion identification according to claim 4 is characterized in that, give up described angle greater than the step of the candidate touch point of the direction limit correspondence of threshold value R, comprising:
Calculate all directions limit to the angular deviation value of described velocity reversal;
Judge square value and the R of all angles deviate
2Between size, give up greater than R
2The candidate touch point of direction limit correspondence.
6. 2 the touch track correcting devices of identification that move is characterized in that, comprising:
The direction of motion acquiring unit is used for obtaining the current effective node coordinate of touch point running orbit, and the velocity reversal of this effective node;
The deflection judging unit that links to each other with described direction of motion acquiring unit, place, the next candidate touch point straight line that is used for described effective node and described running orbit is a direction limit, judges that whether angle between all directions limit and the described velocity reversal is less than threshold value R;
Choose the unit with the available point that described deflection judging unit links to each other, be used on the direction limit less than described threshold value R, select the candidate touch point of direction limit correspondence of described angle minimum as the next effectively node of described running orbit.
7. 2 touch track correcting devices of motion identification according to claim 6 is characterized in that, comprising:
Choose the packet unit that the unit links to each other with described available point, be used for the coordinate data according to the effective node of the described next one, the candidate touch point of the next effectively paired angular dependence of node of selection and described running orbit is as next effective node of another running orbit.
8. according to 2 touch track correcting devices of claim 6 or 7 described motion identifications, it is characterized in that, comprising: the available point storage unit that links to each other with described direction of motion acquiring unit, wherein,
Described available point storage unit comprises the starting point record cell, and the initial touch point that is used for the described running orbit of mark is first effective node; The track record unit that links to each other with described starting point record cell is used for since second effective node, stores the coordinate position of each effective node of described running orbit, and corresponding velocity reversal; The fixed point processing unit that links to each other with described track record unit, be used for current effective node with on the coordinate position of effective node when identical, with the velocity reversal of the described last effective node correspondence velocity reversal as described current effective node.
9. according to 2 touch track correcting devices of each described motion identification of claim 6 to 8, it is characterized in that described deflection judging unit comprises:
The unit is chosen in the touch point, is used for giving up described angle greater than the candidate touch point of the direction limit correspondence of threshold value R.
10. 2 touch track correcting devices of motion according to claim 9 identification is characterized in that described deflection judging unit also comprises:
Choose the deviation computing unit that the unit links to each other with described touch point, be used for calculating all directions limit to the angular deviation value of described velocity reversal;
Square comparing unit that links to each other with described deviation computing unit is for the square value and the R that judge all angles deviate
2Between size, give up greater than R
2The candidate touch point of direction limit correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157813.7A CN103246404B (en) | 2013-04-28 | 2013-04-28 | Two touch track correcting method and the devices that motion identifies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157813.7A CN103246404B (en) | 2013-04-28 | 2013-04-28 | Two touch track correcting method and the devices that motion identifies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103246404A true CN103246404A (en) | 2013-08-14 |
| CN103246404B CN103246404B (en) | 2016-04-27 |
Family
ID=48925953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310157813.7A Expired - Fee Related CN103246404B (en) | 2013-04-28 | 2013-04-28 | Two touch track correcting method and the devices that motion identifies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103246404B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777984A (en) * | 2015-04-30 | 2015-07-15 | 青岛海信电器股份有限公司 | Touch trajectory tracking method and device and touch screen device |
| CN105468208A (en) * | 2014-09-09 | 2016-04-06 | 深圳市鸿合创新信息技术有限责任公司 | Electronic whiteboard trace tracking method and apparatus |
| CN106408607A (en) * | 2016-09-27 | 2017-02-15 | 莱茵健康科技股份有限公司 | Method for measuring angle by means of touch screen of terminal |
| 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 |
| CN107870685A (en) * | 2016-09-27 | 2018-04-03 | 中兴通讯股份有限公司 | A kind of touch control operation recognition methods and device |
| CN105446605B (en) * | 2014-07-23 | 2019-02-05 | 联想(北京)有限公司 | Information processing method and electronic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010043165A1 (en) * | 2008-10-14 | 2010-04-22 | Ho Wai | Multi-point recognition method of infrared touch screen |
| US20110193823A1 (en) * | 2008-07-10 | 2011-08-11 | Su Tzung-Min | Optical sensing system |
| WO2011116538A1 (en) * | 2010-03-26 | 2011-09-29 | Chen Weishan | Identification method for identifying multiple touch points on touch screen simultaneously |
| TW201133312A (en) * | 2010-03-26 | 2011-10-01 | Hon Hai Prec Ind Co Ltd | Infrared touch screen |
| TW201140390A (en) * | 2010-05-07 | 2011-11-16 | Silicon Integrated Sys Corp | Ghost cancellation method for multi-touch sensitive device |
| CN102419661A (en) * | 2011-03-09 | 2012-04-18 | 北京汇冠新技术股份有限公司 | Touch positioning method, touch positioning device and infrared touch screen |
| CN102622137A (en) * | 2012-02-29 | 2012-08-01 | 广东威创视讯科技股份有限公司 | Touch screen multi-point touch control method and device for front positioning of cameras |
-
2013
- 2013-04-28 CN CN201310157813.7A patent/CN103246404B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110193823A1 (en) * | 2008-07-10 | 2011-08-11 | Su Tzung-Min | Optical sensing system |
| WO2010043165A1 (en) * | 2008-10-14 | 2010-04-22 | Ho Wai | Multi-point recognition method of infrared touch screen |
| WO2011116538A1 (en) * | 2010-03-26 | 2011-09-29 | Chen Weishan | Identification method for identifying multiple touch points on touch screen simultaneously |
| TW201133312A (en) * | 2010-03-26 | 2011-10-01 | Hon Hai Prec Ind Co Ltd | Infrared touch screen |
| TW201140390A (en) * | 2010-05-07 | 2011-11-16 | Silicon Integrated Sys Corp | Ghost cancellation method for multi-touch sensitive device |
| CN102419661A (en) * | 2011-03-09 | 2012-04-18 | 北京汇冠新技术股份有限公司 | Touch positioning method, touch positioning device and infrared touch screen |
| CN102622137A (en) * | 2012-02-29 | 2012-08-01 | 广东威创视讯科技股份有限公司 | Touch screen multi-point touch control method and device for front positioning of cameras |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105446605B (en) * | 2014-07-23 | 2019-02-05 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105468208A (en) * | 2014-09-09 | 2016-04-06 | 深圳市鸿合创新信息技术有限责任公司 | Electronic whiteboard trace tracking method and apparatus |
| CN104777984A (en) * | 2015-04-30 | 2015-07-15 | 青岛海信电器股份有限公司 | Touch trajectory tracking method and device and touch screen device |
| CN106408607A (en) * | 2016-09-27 | 2017-02-15 | 莱茵健康科技股份有限公司 | Method for measuring angle by means of touch screen of terminal |
| CN107870685A (en) * | 2016-09-27 | 2018-04-03 | 中兴通讯股份有限公司 | A kind of touch control operation recognition methods and device |
| CN107870685B (en) * | 2016-09-27 | 2022-10-18 | 中兴通讯股份有限公司 | Touch operation identification method and device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103246404B (en) | 2016-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103246404B (en) | Two touch track correcting method and the devices that motion identifies | |
| US20110074719A1 (en) | Gesture detecting method for touch panel | |
| CN101174191A (en) | Touch panel device and its locating method | |
| CN102135836B (en) | Superposition hand input method and system | |
| CN104615332A (en) | Mobile terminal and application icon arrangement method | |
| CN102799325A (en) | Method, device and system for detecting self-capacitance touch screen | |
| CN101520700A (en) | Camera-based three-dimensional positioning touch device and positioning method thereof | |
| CN110460827B (en) | Method and device for determining working state of galvanometer and computer storage medium | |
| CN104991684A (en) | Touch control device and working method therefor | |
| CN113033346B (en) | Text detection method and device and electronic equipment | |
| CN108334270A (en) | Touch screen hand-writing input is rendered as the method with type feature person's handwriting | |
| CN103150059B (en) | Electronic system and track detection method | |
| CN102236441A (en) | Interactive three-dimensional image display system and method | |
| US9405385B2 (en) | Interactive projection apparatus and the positioning method of the interactive pen | |
| CN102141892A (en) | Display method and system for overlaying handwritten input | |
| US20130321303A1 (en) | Touch detection | |
| CN110705551A (en) | Key position identification method and device, electronic equipment and storage medium | |
| CN103984443A (en) | Infrared touch screen and touch point positioning method | |
| CN102622137B (en) | Touch screen multi-point touch control method and device for front positioning of cameras | |
| CN108803669A (en) | Holder rotating direction control method, device, electronic equipment and storage medium | |
| CN102023761B (en) | Multi-point detection and calculation method for touch screen | |
| CN103036741A (en) | Determination method and determination device of flow monitoring base line | |
| CN114327140B (en) | Screen touch method, device, system, equipment and storage medium | |
| CN103440048A (en) | Method and device for operating client through gravity sensing | |
| CN112990127A (en) | Target identification method and device, electronic equipment and storage medium |
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 | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510670 Guangdong Province, Guangzhou high tech Industrial Development Zone Kezhu Road No. 233 Patentee after: Wei Chong group Limited by Share Ltd Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20200428 |