CN101996017A - Multi-touch device and multi-touch method - Google Patents
Multi-touch device and multi-touch method Download PDFInfo
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- CN101996017A CN101996017A CN2009103054905A CN200910305490A CN101996017A CN 101996017 A CN101996017 A CN 101996017A CN 2009103054905 A CN2009103054905 A CN 2009103054905A CN 200910305490 A CN200910305490 A CN 200910305490A CN 101996017 A CN101996017 A CN 101996017A
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Abstract
The invention discloses a multi-touch device and multi-touch method. The multi-touch method comprise the following steps: firstly, touching a resistance-type touch display port so as to generate a first position signal and a pressure signal; then judging whether the pressure signal is larger than a preset pressure threshold or not; if the pressure signal is larger than the preset pressure threshold, recording the first position signal and a second position signal; continuing to judge whether the displacement direction of the first position signal towards the second position signal accords with a preset displacement direction or not; and if the displacement direction of the first position signal towards the second position signal accords with the preset displacement direction, generating an instruction so as to execute a preset operation.
Description
[technical field]
The invention relates to a kind of contactor control device and method thereof, particularly relevant for the field of multi-point touch control apparatus and method thereof.
[background technology]
On the market, contact panel can be divided into electric resistance touch-control panel and capacitance type touch-control panel according to the physical principle of its detecting touch point.Electric resistance touch-control panel utilization finger or other contact flicking will produce voltage; The Weak current (Trackpad that is usually used in notebook computer) of capacitance type touch-control panel utilization finger.
The top layer of electric resistance touch-control panel is one deck polyester sheet, and its inboard has conducting metal to film.And the bottom of screen promptly is attached on cathode ray tube (CRT) or the LCD (LCD), is the glass plate of a slice coated with conductive material.Between glass plate and the polyester sheet, then small " separation " made with one deck polyester separates.Along the X-axis of glass plate and the Y-axis of polyester sheet individual controller is arranged respectively, can apply small voltage gradient.Whenever finger or generally touch screen with pointer, will be together two conductive lamination, so electronic installation just can detect the X coordinate and the Y coordinate of contact point.
And the multi-point touch function appears at present on the market, the circuit that is adopted is complicated capacitance type touch-control panel.The glass plate two sided coatings conductive material of capacitance type touch-control panel, the outside is covered with scratch resistant filming again.Electrode around the glass plate can produce uniform low voltage electric field on the conductive layer of the outside.Inner conductive layer then can provide electromagnetic screen, and reducing noise.Whenever finger touches screen, will produce capacitive coupling with the electric field on the conductive layer of the outside, remove small electric current and inhale.Each electrode is responsible for measuring the electric current from each corner, is made the coordinate of finger again by controller.Therefore, capacitance type touch-control panel is subjected to the contact of electric conductor, and electric field can be changed and produce capacitive coupling, removes to judge position of touch by detecting current.So capacitance type touch-control panel can only lean on human body or go contact to change electric current with the thing with conduction, and reaches the touch-control effect, general pointer is to reach touch controllable function.
Electric resistance touch-control panel is because of the problem on the framework own, and the function that can't accomplish can reach as capacitance type touch-control panel multi-point touch (multi-touch), but and single-point touch only.Shown in the 1st figure, it is the flow chart of steps of existing skill single-point touch method.At first, step S11 user touches touch control display interface.Then, step S12 utilizes the analog digital converting unit of device for encoding and decoding to produce primary importance signal (coordinate).Afterwards, step S13 judges whether the user leaves this touch control display interface.If step S14 waits for that next user touches touch control display interface.If not, get back to step S12.
Therefore, because every problem of existing skill, in order to take into account solutions, the inventor proposes a kind of multi-point touch control apparatus and method thereof based on exploitation and the many practical experience of going in for the study for many years, with implementation and the foundation as the above-mentioned shortcoming of improvement.
[summary of the invention]
In view of this, according to a purpose of the present invention, a kind of multi-point touch control apparatus and method thereof are proposed, can in the electric resistance touch-control design, accomplish the multi-point touch function of similar capacitance touching control design, the pressure signal of pushing touch control display interface as the user is during greater than the preset pressure threshold value, by the sense of displacement of primary importance signal, make processing unit produce instruction by the touch control display interface generation to carry out deliberate action towards second place signal.Wherein, carry out this deliberate action and can comprise amplification, dwindle picture displayed, or picture displayed by the primary importance signal towards direction displacement of second place signal etc.
Edge is, for reaching above-mentioned purpose, according to multi-touch method of the present invention, it comprises following steps, at first, by touching electric resistance touch-control display interface to produce primary importance signal and pressure signal.Afterwards, judge that whether pressure signal is greater than the preset pressure threshold value.If pressure signal greater than the preset pressure threshold value, then writes down primary importance signal and second place signal.Continuing, judging whether meet the preset displacement direction towards the sense of displacement of second place signal by the primary importance signal.If meet the preset displacement direction towards the sense of displacement of second place signal, then produce instruction to carry out deliberate action by the primary importance signal.
For reaching above-mentioned purpose, according to multi-point touch control apparatus of the present invention, comprise electric resistance touch-control display interface, storage element and processing unit in addition.The electric resistance touch-control display interface produces primary importance signal, pressure signal and second place signal by touching.Storage element record primary importance signal, second place signal, preset pressure threshold value, preset displacement direction and deliberate action.Processing unit produces instruction.Wherein, produce primary importance signal and pressure signal by touching this electric resistance touch-control display interface, then, processing unit judges that pressure signal is greater than the preset pressure threshold value, at this moment, processing unit record primary importance signal and second place signal are in storage element.Afterwards, judge by the primary importance signal that when processing unit processing unit produces instruction to carry out deliberate action when the sense of displacement of second place signal meets the preset displacement direction.
From the above, according to a kind of multi-point touch control apparatus of the present invention and method thereof, have following one or more advantage:
(1) this multi-point touch control apparatus and method thereof can be reached easy multi-point touch function by the electric resistance touch-control display interface, significantly reduce the cost of using the capacitance touching control display interface.
(2) this multi-point touch control apparatus and method thereof can be passed through the displacement of 2 touch-control single-points, reach the single-point touch device the function that can't reach, and, improve the convenience of multi-point touch control apparatus and method thereof than the easier operation of single-point touch device.
[description of drawings]
Fig. 1 is the flow chart of steps of the single-point touch method of existing skill;
Fig. 2 is the flow chart of steps of multi-touch method of the present invention; And
Fig. 3 is the calcspar of multi-point touch control apparatus of the present invention.
[embodiment]
See also the 2nd figure, be the flow chart of steps of multi-touch method of the present invention.Multi-touch method has the electronic installation of electric resistance touch-control display interface applicable to PC, notebook computer, personal digital assistant machine (PDA), mobile phone or guiding aircraft etc.Among the figure, step S31: user's (for example: user's single finger, two fingers, pointer or other similar object) touching electric resistance touch-control display interface.
Step S32: by touching the electric resistance touch-control display interface to produce primary importance signal and pressure signal.Wherein, because of this body structure of electric resistance touch-control interface only can produce single position signalling (that is single coordinate), thus touch the first make contact and second contact point on the electric resistance touch-control interface via the user, and output first make contact X
1, Y
1The coordinate and the second contact point X
2, Y
2The mean value of coordinate addition (that is central authorities of the first make contact and second contact point) produces the primary importance signal according to this.In addition, primary importance signal or pressure signal can be converted to digitized signal by the analog-digital converter of device for encoding and decoding (for example codec).
Step S33: judge that whether pressure signal is greater than the preset pressure threshold value.If, look user touching and be at 2 and touch (for example two give directions hit) to step S34.If not, skip to step S38.Wherein the preferable setting of this preset pressure threshold value is the maximum possible pressure according to the single touching contact point of user.
Step S34: record primary importance signal and the second place signal that is shifted by the primary importance signal.Wherein, the mode of second place signal generation please refer to the mode that the primary importance signal produces.That is the user is via the first make contact and the 3rd contact point of this electric resistance touch-control display interface of touching, (the 3rd contact point is formed by the second contact point displacement), and export first make contact X
1, Y
1Coordinate and the 3rd contact point X
3, Y
3The mean value of coordinate addition (that is central authorities of first make contact to the three contact points) produces second place signal according to this.
Step S35: judge whether meet preset displacement direction (linear direction) towards the sense of displacement of second place signal by the primary importance signal.If, to step S36.If not, skip to step S32.
Step S36: produce instruction to carry out deliberate action.Wherein, carry out this deliberate action and can comprise amplification, dwindle picture displayed, or picture displayed is by the sense of displacement displacement etc. in addition towards second place signal of primary importance signal.
Step S37: wait for user's touching next time electric resistance touch-control display interface.
In addition, step S38: judge whether the user leaves and do not touch the electric resistance touch-control display interface, that is whether the first make contact and second contact point of formation primary importance signal disappear.If, to step S37.If not, skip to step S32.
Multi-touch method has more storage element and processing unit.This storage element writes down above-mentioned primary importance signal, second place signal, preset pressure threshold value, preset displacement direction or deliberate action.This handles the unit can produce above-mentioned instruction, the above-mentioned primary importance signal of record in storage element, the above-mentioned pressure signal of judgement and preset pressure threshold value, perhaps, judge above-mentionedly whether meet by the sense of displacement and the preset displacement direction of primary importance signal towards second place signal.
See also the 3rd figure, it is the calcspar of multi-point touch control apparatus of the present invention.Among the figure, multi-point touch control apparatus can be the electronic installation that PC, notebook computer, personal digital assistant machine (PDA), mobile phone or guiding aircraft etc. have the electric resistance touch-control display interface.Multi-point touch control apparatus comprises electric resistance touch-control display interface 1, storage element 2 and processing unit 3.
Electric resistance touch-control interface 1 can be electric resistance touch-control panel, and it comprises polyester sheet, conducting metal is filmed etc.The top layer at electric resistance touch-control interface 1 is one deck polyester sheet, and its inboard has conducting metal to film.And the bottom at electric resistance touch-control interface 1 is attached on cathode ray tube (CRT) or the LCD (LCD).
Electric resistance touch-control display interface 1 can be touched (for example: user's single finger, two fingers, pointer or other similar object) via the user, to produce primary importance signal 11, pressure signal 12 and second place signal 13.Wherein, electric resistance touch-control interface 1 be because of itself only can producing single position signalling (that is single coordinate), thus touch electric resistance touch-control interface 1 via the user, and form the first make contact and second contact point, and output first make contact X
1, Y
1The coordinate and the second contact point X
2, Y
2The mean value of coordinate addition (that is central authorities of the first make contact and second contact point) produces primary importance signal 11 according to this.
The mode of said second position signal 13 its generations please refer to the producing method of primary importance signal 11.The user is via the first make contact and the 3rd contact point of touching electric resistance touch-control display interface 1, (the 3rd contact point is formed by the second contact point displacement), and output first make contact X
1, Y
1Coordinate and the 3rd contact point X
3, Y
3The mean value of coordinate addition (that is central authorities of first make contact to the three contact points) produces second place signal 13 according to this.
Pressure signal 12 by the user touch electric resistance touch-control display interface 1 the summation of generation pressure.
Primary importance signal 11, pressure signal 12 or second place signal 13 can be converted to digitized signal by the analog-digital converter 41 of device for encoding and decoding 4 (for example codec).
Storage element 2 can store primary importance signal 11, second place signal 13, preset pressure threshold value 21, preset displacement direction 22 and deliberate action 23.Wherein, the 21 preferable settings of preset pressure threshold value are that the maximum possible pressure that the user presses on single contact point is its preset pressure threshold value 21.Preset displacement direction 22 is a linear direction.In addition, deliberate action 23 can comprise amplification, dwindle picture displayed, or picture displayed by primary importance signal 11 towards direction displacement of second place signal 12 etc.
When producing primary importance signal 11 and pressure signal 12 when touching electric resistance touch-control display interface 1, processing unit 3 judges that pressure signal 12 is greater than preset pressure threshold value 21, at this moment, user's touching is considered as at 2 touches (two refer to touch), then, processing unit 3 promptly writes down primary importance signal 11 and second place signal 13 in storage element 2.Afterwards, processing unit 3 judgements meet preset displacement direction 22 (linear displacement) by primary importance signal 11 towards the sense of displacement of second place signal 13, at this moment, processing unit 3 produces instruction 31 to be amplified, dwindles to carry out display frame, or display frame by primary importance signal 11 towards the sense of displacement of second place signal 13 deliberate action 23 such as displacement in addition.The linear displacement curve displacement that more comprises some linear segments and constituted wherein.
In this embodiment, processing unit 3 can be CPU (central processing unit) (CPU, Central Processing Unit), microcontroller http://zh.wikipedia.org/w/index.php? title=%E5%BE%AE%E6%8E%A7%E5%88%B6%E5%99%A8﹠amp; Varia
In addition, by primary importance signal 11 towards the sense of displacement of second place signal 13 if when not meeting preset displacement direction (linear displacement), then the analog-digital converter 41 of multi-point touch control apparatus continues to receive primary importance signal 11 and pressure signals 12.In addition, when the 3rd contact point is positioned at second contact point (the 3rd contact point can or be clicked second contact point for displacement, stop), processing unit 3 can produce another instruction, to carry out another action.
In the foregoing description, preferably, when pressure signal 12 is not more than preset pressure threshold value 21, and the user then waits for user's touching next time electric resistance touch-control display interface 1 when stopping to touch electric resistance touch-control display interface 1.Perhaps, when pressure signal 12 is not more than preset pressure threshold value 21, and the user still touches when electric resistance touch-control display interface 1, and then the analog-digital converter 41 of multi-point touch control apparatus continues to receive primary importance signal 11 and pressure signals 12.
Claims (26)
1. multi-touch method is characterized in that comprising following steps:
Touch an electric resistance touch-control display interface to produce a primary importance signal and a pressure signal;
Judge that this pressure signal is whether greater than a preset pressure threshold value: if then store this primary importance signal and via a second place signal of this primary importance signal displacement; And
Judge whether this primary importance signal meets a preset displacement direction towards the sense of displacement of this second place signal: if then produce an instruction to carry out a deliberate action.
2. multi-touch method according to claim 1, it is characterized in that: this pressure signal is not more than this preset pressure threshold value, and when the user stops to touch this electric resistance touch-control display interface, then wait for this electric resistance touch-control display interface of user's touching next time.
3. multi-touch method according to claim 1, it is characterized in that: also comprise an analog-digital converter, when this pressure signal is not more than this preset pressure threshold value, and the user still touches when this electric resistance touch-control display interface, and then this analog-digital converter continues to receive this primary importance signal and this pressure signal.
4. multi-touch method according to claim 3, it is characterized in that: when the sense of displacement of this second place signal did not meet this preset displacement direction, then this analog-digital converter continued to receive this primary importance signal and this pressure signal by this primary importance signal.
5. multi-touch method according to claim 3 is characterized in that: this primary importance signal, this second place signal or pressure signal are converted to digitized signal by this analog-digital converter.
6. multi-touch method according to claim 3 is characterized in that: this analog-digital converter is positioned at a device for encoding and decoding.
7. multi-touch method according to claim 1, it is characterized in that: produce a first make contact and one second contact point by touching this electric resistance touch-control display interface, this primary importance signal is produced by the central authorities of this first make contact and this second contact point.
8. multi-touch method according to claim 7, it is characterized in that: produce this first make contact and one the 3rd contact point by touching this electric resistance touch-control display interface, this second place signal is produced by the central authorities of this first make contact to the 3rd contact point.
9. multi-touch method according to claim 8 is characterized in that: the 3rd contact point is formed by this second contact point displacement.
10. multi-touch method according to claim 1 is characterized in that: this preset displacement direction is a linear direction.
11. multi-touch method according to claim 1 is characterized in that: this multi-point touch control apparatus is PC, notebook computer, personal digital assistant machine, mobile phone or guiding aircraft.
12. multi-touch method according to claim 1 is characterized in that: have a storage element, this primary importance signal of this storage unit stores, this second place signal, this preset pressure threshold value, this preset displacement direction or this deliberate action.
13. multi-touch method according to claim 1, it is characterized in that: have a processing unit, this processing unit produces this instruction, judges this pressure signal and this preset pressure threshold value perhaps judge by sense of displacement and this preset displacement direction of this primary importance signal towards this second place signal whether conform to.
14. multi-touch method according to claim 13 is characterized in that: this processing unit is CPU (central processing unit), microcontroller
15. a multi-point touch control apparatus is characterized in that comprising:
One electric resistance touch-control display interface, a second place signal that produces a primary importance signal, a pressure signal and move by touching via this primary importance signal;
One storage element stores this primary importance signal, this second place signal, a preset pressure threshold value, a preset displacement direction and a deliberate action; And
One processing unit produces an instruction;
Wherein, when producing this primary importance signal and this pressure signal when this electric resistance touch-control display interface of touching, this processing unit judges that this pressure signal is greater than this preset pressure threshold value, then, this processing unit writes down this primary importance signal and this second place signal in this storage element, then, this processing unit is judged by this primary importance signal and is met this preset displacement direction towards the sense of displacement of this second place signal; Then, this processing unit produces this instruction to carry out this deliberate action.
16. multi-point touch control apparatus according to claim 15, it is characterized in that: when this pressure signal is not more than this preset pressure threshold value, and when the user stops to touch this electric resistance touch-control display interface, then wait for this electric resistance touch-control display interface of user's touching next time.
17. multi-point touch control apparatus according to claim 15, it is characterized in that: also comprise an analog-digital converter, when this pressure signal is not more than this preset pressure threshold value, and the user still touches when this electric resistance touch-control display interface, and then this analog-digital converter continues to receive this primary importance signal and this pressure signal.
18. multi-point touch control apparatus according to claim 17, it is characterized in that: when the sense of displacement of this second place signal did not meet this preset displacement direction, then this analog-digital converter continued to receive this primary importance signal and this pressure signal by this primary importance signal.
19. multi-point touch control apparatus according to claim 17 is characterized in that: this primary importance signal or this second place signal are converted to digitized signal by this analog-digital converter.
20. multi-point touch control apparatus according to claim 17 is characterized in that: this analog-digital converter is positioned at a device for encoding and decoding.
21. multi-point touch control apparatus according to claim 15, it is characterized in that: produce a first make contact and one second contact point by touching this electric resistance touch-control display interface, this primary importance signal is produced by the central authorities of this first make contact and this second contact point.
22. multi-point touch control apparatus according to claim 21, it is characterized in that: produce this first make contact and one the 3rd contact point by touching this electric resistance touch-control display interface, this second place signal is produced by the central authorities of this first make contact to the 3rd contact point.
23. multi-point touch control apparatus according to claim 22 is characterized in that: the 3rd contact point is formed by this second contact point displacement.
24. multi-point touch control apparatus according to claim 15 is characterized in that: this preset displacement direction is a linear direction.
25. multi-point touch control apparatus according to claim 15 is characterized in that: this multi-point touch control apparatus is PC, notebook computer, personal digital assistant machine, mobile phone or guiding aircraft.
26. multi-point touch control apparatus according to claim 15 is characterized in that: this processing unit is CPU (central processing unit), microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103054905A CN101996017A (en) | 2009-08-11 | 2009-08-11 | Multi-touch device and multi-touch method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103054905A CN101996017A (en) | 2009-08-11 | 2009-08-11 | Multi-touch device and multi-touch method |
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| CN101996017A true CN101996017A (en) | 2011-03-30 |
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| CN2009103054905A Pending CN101996017A (en) | 2009-08-11 | 2009-08-11 | Multi-touch device and multi-touch method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133708A (en) * | 2014-08-05 | 2014-11-05 | 广州市思码触屏科技有限公司 | Resistance-type multi-touch computer operating system |
| CN104834456A (en) * | 2014-02-12 | 2015-08-12 | 深圳富泰宏精密工业有限公司 | Multi-task switching method and system of touch interface and electronic device |
| CN109876430A (en) * | 2015-12-03 | 2019-06-14 | 网易（杭州）网络有限公司 | A kind of control method and device that game role is mobile |
-
2009
- 2009-08-11 CN CN2009103054905A patent/CN101996017A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104834456A (en) * | 2014-02-12 | 2015-08-12 | 深圳富泰宏精密工业有限公司 | Multi-task switching method and system of touch interface and electronic device |
| CN104133708A (en) * | 2014-08-05 | 2014-11-05 | 广州市思码触屏科技有限公司 | Resistance-type multi-touch computer operating system |
| CN109876430A (en) * | 2015-12-03 | 2019-06-14 | 网易（杭州）网络有限公司 | A kind of control method and device that game role is mobile |
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Application publication date: 20110330 |