CN102096487B - Integrated touch input device and touch recognition method - Google Patents
Integrated touch input device and touch recognition method Download PDFInfo
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- CN102096487B CN102096487B CN200910211979.6A CN200910211979A CN102096487B CN 102096487 B CN102096487 B CN 102096487B CN 200910211979 A CN200910211979 A CN 200910211979A CN 102096487 B CN102096487 B CN 102096487B
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- touch
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- electromagnetic induction
- input device
- touching signals
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Abstract
The invention relates to an integrated touch input device and a touch recognition method. The touch input device mainly comprises a touch panel, an antenna loop array, a digital signal processor, a scanning control circuit and a main processor, wherein the touch panel is used for generating a touch signal; the digital signal processor is used for sensing the touch signal; the antenna loop array is used for receiving an electromagnetic induction signal returned by a touch stylus; the scanning control circuit is used for sensing and calculating the electromagnetic induction signal; and the main processor recognizes an accurate touch position according to the touch signal and the electromagnetic induction signal and eliminates a wrong touch position.
Description
Technical field
The touch-control input device and the inner touch-control discrimination method used thereof that the present invention relates to a kind of conformability, particularly relate to a kind of touch-control input device and the touch-control discrimination method that can get rid of the wrong touch detection of palm false touch.
Background technology
The current common touch technology arriving on the market, mainly can be divided into resistance-type, condenser type, electromagnetic type, infrared-type, optical profile type or ultrasonic formula etc.The contact panel development of resistance-type for a long time, mainly take single-point type touch technology as main, yet whether electric resistance touch-control cannot can detect near contact panel when hovering above contact panel surface when pointer, namely there is no distance of reaction, when palm touches this contact panel with finger simultaneously, the wrong touch detection in the time of also cannot preventing palm false touch.Capacitive contact panel mainly be take can realize multipoint-touch-technology as main, but this touch technology equally cannot be when finger or pointer can detect distance of reaction, the wrong touch detection in the time of equally also cannot preventing palm false touch above being positioned over contact panel.
In addition, the contact panel of electromagnetic type or be called hand input device, has the advantage of higher accuracy and resolution, is used in widely that professional art designing draws and the field such as industry mapping, its technical can be with having battery pen and distinguishing without two kinds, battery pen.Without the patent of the electromagnetic type handwriting device of battery pen mainly with the United States Patent (USP) U.S. notification number 4,789,765,4 of Wacom company, 878,553,4,956,526 and 7, the patent such as 005,843 is representative, and its advantage is to have distance of reaction, and be not afraid of palm elbow and be pressed on and write in district, but its shortcoming can only single-point input writing, and special-purpose time writer project organization relative complex is many, and cost is also higher.
According to the shortcoming of above-mentioned contact panel, in order to increase the practicality of contact panel, exist a kind of Demand Design can get rid of the wrong touch detection of palm false touch, and the touch-control input device of detecting the modified form of the ability of spiraling.
Summary of the invention
Fundamental purpose of the present invention is, provides a kind of touch-control input device of conformability can have the ability of distance of reaction.
Another object of the present invention is to, provide a kind of touch-control input device can prevent via exclusive touch-control stylus the wrong touch detection of palm false touch.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of touch-control input device proposing according to the present invention, at least comprises: a contact panel, for generation of a touching signals; One digital signal processor, for detecting this touching signals; One antenna loop array, for generation of an electromagnetic induction signal of a touch-control stylus; One scan control circuit, for detecting this electromagnetic induction signal; And a primary processor, according to this touching signals and the correct at least one position of touch of this electromagnetic induction signal identification, get rid of this wrong position of touch.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid touch-control input device, wherein above-mentioned antenna loop array more can be launched the energy that generates electromagnetic waves.
Aforesaid touch-control input device, wherein above-mentioned touch-control stylus more comprises an oscillatory circuit and can store this electromagnetic wave energy being produced by this antenna loop array.
Aforesaid touch-control input device, wherein above-mentioned oscillatory circuit can be launched this stored electromagnetic energy and returns to this antenna loop array.
Aforesaid touch-control input device, wherein above-mentioned oscillatory circuit is a LC oscillatory circuit.
Aforesaid touch-control input device, wherein relatively this touching signals and this electromagnetic induction signal of above-mentioned primary processor, if this position of touch that this touching signals is detected with this electromagnetic induction signal is not identical, gets rid of this position of touch.
The object of the invention to solve the technical problems also realizes by the following technical solutions.A kind of touch-control input device proposing according to the present invention, at least comprises: a contact panel, for generation of a touching signals; One digital signal processor, is electrically connected this contact panel, for detecting this touching signals; One antenna loop array, for generation of an electromagnetic induction signal of a touch-control stylus; One multiplexer, is electrically connected this antenna loop array, for detecting this electromagnetic induction signal and generating electromagnetic waves energy; One amplifying circuit, for amplifying this electromagnetic induction signal; One sample circuit, for sampling this electromagnetic induction signal; One analog-digital converter, for doing analog digital conversion to this electromagnetic induction signal; And a primary processor, according to this touching signals and the correct at least one position of touch of this electromagnetic induction signal identification, get rid of this wrong position of touch.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid touch-control input device, wherein above-mentioned touch-control stylus more comprises an oscillatory circuit and can store the electromagnetic wave energy being produced by this antenna loop array.
Aforesaid touch-control input device, wherein above-mentioned oscillatory circuit can be launched this electromagnetic wave energy and returns to this antenna loop array.
Aforesaid touch-control input device, when wherein above-mentioned touch-control stylus spirals above this contact panel, this touch-control input device can detect the position coordinates of this touch-control stylus.
Aforesaid touch-control input device, wherein above-mentioned oscillatory circuit is a LC oscillatory circuit.
Aforesaid touch-control input device, wherein above-mentioned sample circuit is an amplitude sample circuit.
Aforesaid touch-control input device, wherein relatively this touching signals and this electromagnetic induction signal of above-mentioned primary processor, if this position of touch that this touching signals is detected with this electromagnetic induction signal is not identical, gets rid of this position of touch.
The object of the invention to solve the technical problems realizes in addition more by the following technical solutions.A kind of touch-control discrimination method proposing according to the present invention, it comprises following steps: whether detecting one touching signals exists; Whether detect an electromagnetic induction signal exists; If detect this touching signals but do not detect this electromagnetic induction signal, transmitting this touching signals; If detect this touching signals, also detect this electromagnetic induction signal, and this touching signals and this electromagnetic induction signal be identical, transmit this touching signals simultaneously; And if this touching signals and this electromagnetic induction signal misfit, revise the processing of palm false touch.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid touch-control discrimination method, wherein the step of above-mentioned this touching signals of detecting is carried out on a contact panel.
Aforesaid touch-control discrimination method, wherein the step of above-mentioned this electromagnetic induction signal of detecting is carried out on an antenna loop array.
Aforesaid touch-control discrimination method, wherein above-mentioned touch-control discrimination method, when this touching signals and this electromagnetic induction signal are misfitted, is as the criterion to revise this touching signals with this electromagnetic induction signal.
Aforesaid touch-control discrimination method, above-mentioned touch-control discrimination method wherein, when this touching signals and this electromagnetic induction signal are while coincideing, confirms that the position of touch that this touching signals is indicated respectively to this electromagnetic induction signal is similar.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the touch-control input device of conformability of the present invention and touch-control discrimination method at least have following advantages and beneficial effect:
1. prevent from causing because of palm accident touch on touch control panel the error detection of contactor control device;
2. correct coordinates position that can more accurate identification touch-control.
In sum, touch-control input device of the present invention mainly comprises contact panel, antenna loop array, digital signal processor, scan control circuit and primary processor.Contact panel is for generation of touching signals; Digital signal processor is used for detecting a touching signals; Antenna loop array is for receiving the electromagnetic induction signal that touch-control stylus is passed back; Scan control circuit is for detecting and calculate electromagnetic induction signal; Primary processor can be according to touching signals and the correct position of touch of electromagnetic induction signal identification, the position of touch of debug.The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 shows the calcspar of touch-control input device of the present invention.
Fig. 2 shows the calcspar of the touch-control input device of another embodiment of the present invention.
Fig. 3 shows the method flow diagram of the signal correction palm false touch detecting of touch-control input device of the present invention.
Fig. 4 shows the flow chart of steps of the signal correction palm false touch detecting of touch-control input device of the present invention.
10: touch-control input device 102: contact panel
104: antenna loop array 106: digital signal processor
108: scan control circuit 110: primary processor
112: touch-control stylus 1122: oscillatory circuit
114: electronic installation 20: touch-control input device
202: contact panel 204: antenna loop array
206: digital signal processor 208: multiplexer
210: amplifying circuit 212: sample circuit
214: analog-digital converter 216: primary processor
218: touch-control stylus 2182: oscillatory circuit
220: electronic installation 302～324: state
402～408: step
Embodiment
For further setting forth the present invention, reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, touch-control input device and its embodiment of touch-control discrimination method, structure, method, step, feature and effect thereof to the conformability proposing according to the present invention, be described in detail as follows.
Refer to shown in Fig. 1, show the calcspar of touch-control input device of the present invention., this touch-control input device 10 mainly comprises contact panel 102, antenna loop array 104, digital signal processor 106, scan control circuit 108 and primary processor 110.On contact panel 102 of the present invention, no matter be that single-point touch or multi-point touch mode all can realize on this contact panel 102.Furthermore, the electric resistance touch-control panel that this contact panel 102 can be multipoint mode or the contact panel of optical scanning formula, as long as can realize single-point touch or the contact panel of multi-point touch can be applied on contact panel 102 of the present invention.When user touches this contact panel 102, can produce a touching signals.Be different from traditional touch-control input device, touch-control input device 10 of the present invention is provided with an antenna loop array 104 below contact panel 102, this antenna loop array 104 is the electromagnetic change that produce for respond to the touch-control stylus 112 write on contact panel 102, and then spreads out of electromagnetic induction signal.Digital signal processor 106 is electrically connected contact panel 102, it is for scanning the position of detecting touching signals on contact panel 102, because digital signal processor 106 is existing prior art for the touch detection of contact panel 102, therefore repeat no more for the technological means of digital signal processor 106.108 of scan control circuits are launched energy of electromagnetic field to processing touch-control stylus 112 momently for periodicity, when touch-control stylus 112 approaches contact panel 102 with antenna loop array 104, can therefore induce electromagnetic induction signal also has the variation of amplitude according to its distance.Finally, digital signal processor 106 is electrically connected respectively primary processor 110 with scan control circuit 108, the difference that the touching signals that primary processor 110 transmits according to digital signal processor 106 and scan control circuit 108 and electromagnetic induction signal are compared binary signal position, therefore and picked out rational position of touch, the error detection when getting rid of palm false touch.
Still consult Fig. 1, touch-control input device 10 of the present invention more comprises a touch-control stylus 112.This touch-control stylus 112 comprises an oscillatory circuit 1122, the object that installs this oscillatory circuit 1122 in touch-control stylus 112 additional is to receive momently the energy of electromagnetic field of launching from antenna loop array 104, when antenna loop array 104 stops emitted energy, oscillatory circuit 1122 is because there being storage power, just can signal be fired back via the coil of self, in touch-control stylus 112 approaches the certain distance in contact panel 102 tops, can detect the position coordinates of touch-control stylus 112, and then position coordinates is revised the touch detection result of digital signal processor 106 according to this.In addition, when user uses this touch-control stylus 112 to operate above contact panel 102, if user's palm has touched contact panel 102 because of carelessness at this moment, because palm part does not have oscillatory circuit 1122, antenna loop array 104 does not react for the detecting of the touch-control part of palm, the position of touch that the position of touch that can detect for contact panel 102 when the processing of primary processor 110 and antenna loop array 104 are detected is made comparisons, in relatively, the part of palm false touch can be regarded as rub-out signal, and then the part of palm false touch is got rid of, can on the display screen of electronic installation 114, not show.The thing that need to illustrate at this, this oscillatory circuit 1122 is LC oscillatory circuit structure in a preferred embodiment, LC oscillatory circuit structure is known by being familiar with this skill person, therefore at this, the circuit theory to LC oscillatory circuit structure is not described in detail.
Refer to shown in Fig. 2, show the calcspar of the touch-control input device of another embodiment of the present invention.This touch-control input device 20 mainly comprises contact panel 202, antenna loop array 204, digital signal processor 206, multiplexer 208, amplifying circuit 210, sample circuit 212, analog-digital converter 214 and primary processor 216.Equally, in this embodiment, no matter be that single-point touch or multi-point touch mode all can realize on this contact panel 202.When user touches this contact panel 202, can produce touching signals.The embodiment that is different from Fig. 1, more comprises multiplexer 208, amplifying circuit 210, sample circuit 212 and analog-digital converter 214 at this touch-control input device 20.Multiplexer 208 is for the electromagnetic induction signal of receiving antenna loop array 204, and can control antenna loop array 204 to launch momently energy of electromagnetic field to touch-control stylus 218.Amplifying circuit 210 amplifies electromagnetic induction signal to be sent to sample circuit 212, the amplitude of sample circuit 212 sampling electromagnetic induction signals, transmit signals to again analog-digital converter 214, signal conversion through analog-digital converter, is finally passed to primary processor 216 identifications by digital sampling electromagnetic induction signal.Possesses equally in this embodiment touch-control stylus 218, cause for this reason touch-control stylus 218 comprises an oscillatory circuit 2182, can receive the energy of electromagnetic field of launching from antenna loop array 204, after oscillatory circuit 2182 energy storage, just signal can be fired back, when touch-control stylus 218 is above contact panel 202, can detect the position coordinates of touch-control stylus 218, except can be used for increasing the increase degree of accuracy of contact panel 202, and then can get rid of the wrong touch-control identification that other objects touch contact panel 202 because of carelessness.Finally correct position of touch is presented on electronic installation 220.
Refer to shown in Fig. 3, show the method flow diagram of the signal correction palm false touch detecting of touch-control input device of the present invention.In state 302, contact panel starts scanning detecting, and in state 304, checks whether have touching signals to produce.If detected touching signals, produce, get the hang of and scan the touching signals of touch-control stylus in 306.If detect the touching signals of touch-control stylus in state 308, get the hang of and confirm that whether the position of touch of touch-control stylus approaches with the position of touch that contact panel is detected in 310.If do not detect the touching signals of touch-control stylus, regard as the touch-control of non-touch-control stylus, the touch-control coordinate recognizing is sent to the electronics process of rear end in state 312.In addition, if the position of touch of touch-control stylus is the position of touch of detecting with contact panel, approach, in state 314, transmit the coordinate position signal of touch-control to the electronics process of rear end; If the position of touch of touch-control stylus does not approach with the position of touch that contact panel is detected, in state 316, make the error exception of touch-control false touch, then transmit the coordinate position signal of touch-control that contact panel detects to the electronics process of rear end in state 314.If do not produce and detect touching signals in state 304, the touching signals of 318 scanning touch-control stylus gets the hang of, in state 320, check whether be the electromagnetic signal that has touch-control stylus, if also do not detect the electromagnetic signal of touch-control stylus, get back to state 302.If there is the touching signals that detects touch-control stylus, at state 322, judge it is that palm is gripping the unsettled process of touch-control stylus above contact panel, in state 324, the coordinate position signal of touch-control stylus position is transmitted to the electronics process of rear end, then gets back to state 302.
Refer to shown in Fig. 4, show the flow chart of steps of the signal correction palm false touch detecting of touch-control input device of the present invention.In step 402, on contact panel, detect touching signals and whether exist; In step 404, by antenna loop array detecting electromagnetic induction signal, whether exist.If detect touching signals but do not detect the electromagnetic induction signal of touch-control stylus in step 406, transmitting touch-control coordinate to electronics process of touching signals.If detect touching signals in step 408, simultaneously also have the electromagnetic induction signal that detects touch-control stylus, and touching signals is identical with electromagnetic induction signal, transmission touch-control coordinate is to this electronics process; In step 410, if touching signals and electromagnetic induction signal are misfitted, revise the processing of palm false touch, then transmit touching signals.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the method for above-mentioned announcement and technology contents to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (16)
1. a touch-control input device, is characterized in that at least comprising:
One contact panel, for generation of a touching signals;
One digital signal processor, for detecting this touching signals;
One antenna loop array, for generation of an electromagnetic induction signal of a touch-control stylus;
One scan control circuit, for detecting this electromagnetic induction signal; And
One primary processor, this digital signal processor and this scan control circuit are electrically connected respectively this primary processor, whether this this touching signals of primary processor identification and this electromagnetic induction signal identification exist, the difference that this touching signals that this primary processor transmits according to this digital signal processor and this scan control circuit and this electromagnetic induction signal are compared binary signal position, and whether this touching signals and this electromagnetic induction signal approach or this touch-control stylus unsettled process above this contact panel.
2. touch-control input device according to claim 1, is characterized in that wherein above-mentioned antenna loop array more can launch the energy that generates electromagnetic waves.
3. touch-control input device according to claim 2, is characterized in that wherein above-mentioned touch-control stylus more comprises an oscillatory circuit and can store by this antenna and return this electromagnetic wave energy that image array produces.
4. touch-control input device according to claim 3, is characterized in that wherein above-mentioned oscillatory circuit can launch this stored electromagnetic energy and return to this antenna loop array.
5. touch-control input device according to claim 3, is characterized in that wherein above-mentioned oscillatory circuit is a LC oscillatory circuit.
6. a touch-control input device, is characterized in that at least comprising:
One contact panel, for generation of a touching signals;
One digital signal processor, is electrically connected this contact panel, for detecting this touching signals;
One antenna loop array, for generation of an electromagnetic induction signal of a touch-control stylus;
One multiplexer, is electrically connected this antenna loop array, for detecting this electromagnetic induction signal and generating electromagnetic waves energy;
One amplifying circuit, for amplifying this electromagnetic induction signal;
One sample circuit, for sampling this electromagnetic induction signal;
One analog-digital converter, for doing analog digital conversion to this electromagnetic induction signal; And
One primary processor, this digital signal processor and this analog-digital converter are electrically connected respectively this primary processor, whether this this touching signals of primary processor identification and this electromagnetic induction signal identification exist, the difference that this touching signals that this primary processor transmits according to this digital signal processor and this analog-digital converter and this electromagnetic induction signal are compared binary signal position, and whether this touching signals and this electromagnetic induction signal approach or this touch-control stylus unsettled process above this contact panel.
7. touch-control input device according to claim 6, is characterized in that wherein above-mentioned touch-control stylus more comprises an oscillatory circuit and can store the electromagnetic wave energy being produced by this antenna loop array.
8. touch-control input device according to claim 7, is characterized in that wherein above-mentioned oscillatory circuit can launch this electromagnetic wave energy and return to this antenna loop array.
9. touch-control input device according to claim 7, while it is characterized in that wherein above-mentioned touch-control stylus spirals above this contact panel, this touch-control input device can detect the position coordinates of this touch-control stylus.
10. touch-control input device according to claim 7, is characterized in that wherein above-mentioned oscillatory circuit is a LC oscillatory circuit.
11. touch-control input devices according to claim 6, is characterized in that wherein above-mentioned sample circuit is an amplitude sample circuit.
12. 1 kinds of touch-control discrimination methods, is characterized in that it comprises following steps:
Provide a touch-control stylus above a touch-control input device;
Whether detect a touching signals exists;
Whether an electromagnetic induction signal of detecting this touch-control stylus exists;
Judge whether this touching signals and this electromagnetic induction signal approach;
According to this touching signals and this electromagnetic induction signal, whether exist and judge whether unsettled process above this touch-control input device of this touch-control stylus; And
If this touching signals and this electromagnetic induction signal are misfitted, revise the processing of palm false touch.
13. touch-control discrimination methods according to claim 12, is characterized in that wherein the step of above-mentioned this touching signals of detecting is carried out on a contact panel of this touch-control input device.
14. touch-control discrimination methods according to claim 12, is characterized in that wherein the step of above-mentioned this electromagnetic induction signal of detecting is carried out on an antenna loop array of this touch-control input device.
15. touch-control discrimination methods according to claim 12, is characterized in that wherein above-mentioned touch-control discrimination method, when this touching signals and this electromagnetic induction signal are misfitted, is as the criterion to revise this touching signals with this electromagnetic induction signal.
16. touch-control discrimination methods according to claim 12, it is characterized in that wherein above-mentioned touch-control discrimination method, when this touching signals and this electromagnetic induction signal are while coincideing, confirm that the position of touch that this touching signals is indicated respectively to this electromagnetic induction signal is similar.
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|---|---|---|---|
| CN200910211979.6A CN102096487B (en) | 2009-12-10 | 2009-12-10 | Integrated touch input device and touch recognition method |
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| CN200910211979.6A CN102096487B (en) | 2009-12-10 | 2009-12-10 | Integrated touch input device and touch recognition method |
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| CN102096487A CN102096487A (en) | 2011-06-15 |
| CN102096487B true CN102096487B (en) | 2014-09-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI447630B (en) * | 2011-11-25 | 2014-08-01 | Wistron Corp | Processing method for touch signal and computing device thereof |
| KR20140066452A (en) * | 2012-11-23 | 2014-06-02 | 삼성전기주식회사 | Input device |
| US10514803B2 (en) * | 2016-03-06 | 2019-12-24 | Microsoft Technology Licensing, Llc | Pen in field force sensing calibration |
| CN108874184A (en) * | 2017-05-16 | 2018-11-23 | 矽统科技股份有限公司 | Touch control display system, touch control display method, active pen and touch device |
| CN107845247A (en) * | 2017-11-30 | 2018-03-27 | 无锡迪富智能电子股份有限公司 | One kind touches waterproof intelligent remote controller |
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| CN1485794A (en) * | 2002-09-25 | 2004-03-31 | 株式会社华科姆 | Position detection apparatus and its position indicator |
| CN2833708Y (en) * | 2005-05-13 | 2006-11-01 | 太瀚科技股份有限公司 | Wireless input pen structure for electronic notepad |
| CN101551713A (en) * | 2008-03-31 | 2009-10-07 | 太瀚科技股份有限公司 | Pointer input device with double input modes |
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2009
- 2009-12-10 CN CN200910211979.6A patent/CN102096487B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485794A (en) * | 2002-09-25 | 2004-03-31 | 株式会社华科姆 | Position detection apparatus and its position indicator |
| CN2833708Y (en) * | 2005-05-13 | 2006-11-01 | 太瀚科技股份有限公司 | Wireless input pen structure for electronic notepad |
| CN101551713A (en) * | 2008-03-31 | 2009-10-07 | 太瀚科技股份有限公司 | Pointer input device with double input modes |
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