CN102467275A - Detection method and detection device for detecting a plurality of touch points on touch panel - Google Patents
Detection method and detection device for detecting a plurality of touch points on touch panel Download PDFInfo
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- CN102467275A CN102467275A CN2010105390922A CN201010539092A CN102467275A CN 102467275 A CN102467275 A CN 102467275A CN 2010105390922 A CN2010105390922 A CN 2010105390922A CN 201010539092 A CN201010539092 A CN 201010539092A CN 102467275 A CN102467275 A CN 102467275A
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Abstract
The invention discloses a detection method for detecting a plurality of touch points on a touch panel. The touch panel comprises a plurality of first sensing axes on a first dimension and a plurality of second sensing axes on a second dimension. The detection method comprises the following steps of: determining at least one specific sensing axis from the first sensing axes according to primary sensing data; setting the driving and receiving sequence of the first and second sensing axes to generate sensing output; and when a finishing instruction is received, determining a touch detection result according to the sensing output. The invention also discloses a detection device for detecting the plurality of touch points on the touch panel.
Description
Technical field
The present invention relates to a kind of detection method of touch points, relate in particular to a kind of in order on a contact panel, to detect the detection method and the sniffer of a plurality of touch points.
Background technology
In general Inductance and Capacitance formula (mutual capacitance) contact panel; Two kinds of habitual detection methods are arranged usually; First kind of detection method is (for example: the X axle) go up all inductive axis (sensing axis) on a contact panel, to drive first dimension one by one; And (for example: the Y axle) go up the induced signal that each inductive axis receives each inductive axis on the corresponding X axle one by one with second dimension; Then drive each inductive axis on the Y axle more one by one, and receive the induced signal of each inductive axis on the corresponding Y axle one by one at each inductive axis on the X axle.For instance, please with reference to Fig. 1, Fig. 1 is directed against the synoptic diagram that a plurality of touch points are surveyed on the contact panel 100 for using known detection circuit 200.Can know by figure; Known contact panel 100 respectively has eight inductive axis X1～X8 and Y1～Y8 on X axle and Y axle; Wherein, Each inductive axis can be through buffer 211 (only demonstrating a buffer among the figure typically) with multiplexer 210 these inductive axis of decision how to be connected to an analog-digital converter (analog-digitalconverter, ADC) 220 with and the mode of work.When application of driver circuits 250 drives inductive axis X1; Buffer 211 can be set simultaneously uses multiplexer 210 receives corresponding inductive axis X1 on inductive axis Y1 induced signal; And application simulation digital quantizer 220 converts this induced signal to digital signal and is stored among the storage unit (for example internal memory) 230, afterwards, and again (for example: microcontroller by processor; (micro control unit, MCU)) utilizes control interface 240 to read this digital signal; Then; Continue to drive inductive axis X1; And the setting of in buffer 211, changing inductive axis Y1 and Y2 is moved with the reception that stops inductive axis Y1; And beginning receives the induced signal of corresponding inductive axis X1 on inductive axis Y2, and application simulation digital quantizer 220 converts this induced signal to digital signal, utilizes control interface 240 to read this digital signal by this processor again; By that analogy, all induced signals up to the last corresponding inductive axis X1 of inductive axis Y1～Y8 all are read to this processor.
In Fig. 1; Known detection circuit 200 needs through a large amount of settings and reads continually intactly to detect the touch event on the contact panel 100; For instance; If detection circuit 200 is done scanning to obtain the wherein coordinate of each touch points to areas whole on the contact panel 100, the reading times of required setting buffer 211 and control interface 240 needs 8*8*2=128 time at least.Please refer again to Fig. 2, its preliminary detection synoptic diagram for being detected to a plurality of touch points incidents on the contact panel 100, wherein the sensing signal of received corresponding Y axle is expressed as SX on the X axle; The sensing signal of received corresponding X axle then is expressed as SY on the Y axle; Can know that by figure sensing signal SX points out on inductive axis X2, X3, X6 and X7, touch points is arranged, and sensing signal SX points out at inductive axis Y2, Y3, Y4; On Y5 and the Y6 touch points is arranged; Therefore, dwindle sweep limit even used preliminary locator(-ter), needed setting of the example of Fig. 2 and reading times at least still need 4*5*2=40 time.
Therefore, how to promote the detection efficiency of contact surface plate, reduce the big problem that wherein required setting and reading times are still this field.
Summary of the invention
In view of this, the invention provides a kind of carry out quick detection and significantly reduce to set and the detection method of reading times and with its correlation detection device.
According to one embodiment of the invention, it provides a kind of in order on contact panel, to detect the detection method of a plurality of touch points.This contact panel includes a plurality of first inductive axis on first dimension, and on second dimension, includes a plurality of second inductive axis.This detection method includes: the touch points according to touching on this control panel produces preliminary sense data; According to this preliminary sense data, in those first inductive axis, determine at least one specific inductive axis; Using an initialization circuit sets driving and the reception of those first inductive axis and those second inductive axis and produces sensing output in proper order; Include: application of driver circuits comes to drive one by one this at least one specific inductive axis; And on those second inductive axis of this contact panel, receive sense data that should at least one specific inductive axis through multiplexer respectively; Export to produce sensing, and this sensing output is stored in the storage unit; And use decision-making circuit and finish receiving instruction, when this decision-making circuit received this completions instruction, this decision-making circuit was just exported according to this sensing and is decided to touch result of detection.
Detection method according to this embodiment; Wherein said preliminary sense data includes the first preliminary sense data and the second preliminary sense data; And the step that produces said preliminary sense data includes: drive said second inductive axis simultaneously; And on said first inductive axis, receive first sense data of corresponding each second inductive axis respectively, to produce the said first preliminary sense data; And drive said first inductive axis simultaneously, and on said second inductive axis, receive second sense data of corresponding each first inductive axis respectively, to produce the said second preliminary sense data; The data bulk of the wherein said first preliminary sense data is not more than the data bulk of the said second preliminary sense data.
Preferably, in the detection method according to this embodiment, the step that produces the said first preliminary sense data includes: each first sense data according to surpassing a fault value produces the said first preliminary sense data.
Preferably, in the detection method according to this embodiment, the step that produces the said second preliminary sense data includes: each second sense data according to surpassing a fault value produces the said second preliminary sense data.
Detection method according to this embodiment; The step that wherein produces said preliminary sense data includes: drive said second inductive axis simultaneously; And on said first inductive axis, receive the sense data of corresponding each second inductive axis respectively, to produce said preliminary sense data; And according to said preliminary sense data, the method that in said first inductive axis, determines said at least one specific inductive axis includes: select said at least one specific inductive axis according to said preliminary sense data at said first inductive axis.
According to another embodiment of the present invention, it provides a kind of in order on contact panel, to detect the sniffer of a plurality of touch points.This contact panel includes a plurality of first inductive axis on first dimension, and on second dimension, includes a plurality of second inductive axis.This sniffer includes driving circuit, multiplexer, preliminary detection circuit, inductive axis selection circuit, storage unit, initialization circuit and decision-making circuit.This driving circuit is in order to drive those first inductive axis and those second inductive axis.This multiplexer is in order to receive at least one sense data of corresponding those first inductive axis and second inductive axis.This preliminary detection circuit is coupled to this driving circuit and this multiplexer, comes according to touching touch points on this control panel to produce preliminary sense data in order to use this driving circuit and this multiplexer.This inductive axis selects circuit to be coupled to preliminary detection circuit, in order to according to this preliminary sense data, in those first inductive axis, determines at least one specific inductive axis.This initialization circuit is coupled to this driving circuit, this multiplexer, this inductive axis selection circuit and this storage unit; Driving and reception in order to set those first inductive axis and those second inductive axis produce sensing output in proper order; Controlling this driving circuit to drive one by one after this at least one specific inductive axis; On those second specific inductive axis of this contact panel, receive sense data that should at least one specific inductive axis through this multiplexer respectively; Export to produce sensing, and this sensing output is stored in this storage unit.This decision-making circuit is coupled to this storage unit, and in order to finish receiving instruction, when this decision-making circuit received this completion instruction, this decision-making circuit determined the touching result of detection according to this sensing output in this storage unit.
In the sniffer according to this embodiment, said preliminary sense data includes the first preliminary sense data and the second preliminary sense data; And said driving circuit drives said second inductive axis simultaneously; And control said multiplexer receives corresponding each second inductive axis respectively on said first inductive axis first sense data by said initialization circuit; To produce the said first preliminary sense data; And said driving circuit drives said first inductive axis simultaneously; And control said multiplexer receives corresponding each first inductive axis respectively on said second inductive axis second sense data by said initialization circuit, to produce the said second preliminary sense data; The data bulk of the wherein said first preliminary sense data is not more than the data bulk of the said second preliminary sense data.
Preferably, in the sniffer according to this embodiment, said preliminary detection circuit produces the said first preliminary sense data according to each first sense data that surpasses a fault value.
Preferably, in the sniffer according to this embodiment, said preliminary detection circuit produces the said second preliminary sense data according to each second sense data that surpasses a fault value in addition.
In the sniffer according to this embodiment, said preliminary detection circuit drives said second inductive axis simultaneously, and on said first inductive axis, receives the sense data of corresponding each second inductive axis respectively, to produce said preliminary sense data; And inductive axis selects circuit to select said at least one specific inductive axis according to said preliminary sense data at said first inductive axis.
Description of drawings
Fig. 1 is directed against the synoptic diagram that a plurality of touch points are surveyed on the contact panel for using known detection circuit.
The preliminary detection synoptic diagram of Fig. 2 for being detected to a plurality of touch points incidents on the contact panel.
Fig. 3 is the synoptic diagram according to the sniffer that is applied to contact panel that one embodiment of the invention realized.
Embodiment
Please with reference to Fig. 3, it is the synoptic diagram according to the sniffer that is applied to contact panel 300 that one embodiment of the invention realized.This contact panel in first dimension (for example: include a plurality of longitudinal induction axles the X axle); And in second dimension (for example: include a plurality of transvercal induction axles the Y axle); For instance; Sniffer 300 is applied to contact panel shown in Figure 2 100 to survey the touch points on it, and wherein contact panel 100 has longitudinal induction axle X1～X8 and transvercal induction axle Y1～Y8.In the present embodiment; Sniffer 300 includes (but being not limited to one) multiplexer 310, digital analog converter 320, storage unit (for example internal memory) 330, control interface 340, driving circuit 350, preliminary detection circuit 360, inductive axis selection circuit 370, initialization circuit 380 and decision-making circuit 390; Wherein the structure and the function of the corresponding element in multiplexer 310 (comprising buffer 311 wherein), digital analog converter 320, storage unit 330, control interface 340 and driving circuit 350 and the known detection circuit 200 are roughly the same, so its detail operations just repeats no more at this.
At first; In the first embodiment of the present invention; Preliminary detection circuit 360 meeting application of driver circuits 350 and multiplexer 310 produce preliminary sense data SP according to all touch points on the contact panel earlier; For instance, application of driver circuits 350 drives the longitudinal induction axle X1～X8 in the contact panel 100 simultaneously earlier, and the transvercal induction axle Y1～Y8 last reception corresponding sensing signal SY of control multiplexer 310 in contact panel 100; Then while application of driver circuits 350 drives transvercal induction axle Y1～Y8 again; And control multiplexer 310 is last at the corresponding sensing signal SX of the last reception of longitudinal induction axle X1～X8, produces preliminary sense data SP according to sensing signal SY and sensing signal SX again.Example by Fig. 2 can be known; Sensing signal SX points out to have only in the longitudinal induction axle signal that responds on four longitudinal induction axles such as X2, X3, X6 and X7; Sensing signal SY then points out to have only in the transvercal induction axle signal that responds on five transvercal induction axles such as Y2, Y3, Y4, Y5 and Y6; Therefore; Inductive axis selects circuit 370 then just according among the preliminary sense data SP, and the transvercal induction number of axle amount that has the longitudinal induction number of axle amount of reaction signal and have a reaction signal decides at least one specific inductive axis.In order to simplify follow-up handling procedure; The inductive axis that inductive axis selects circuit 370 can be chosen in negligible amounts on the dimension is used as specific inductive axis; In this example, it is that longitudinal induction axle X2, X3, X6 and X7 are classified as specific inductive axis that inductive axis is selected circuit 370.Please note; This is only as the usefulness of example explanation; It is not restrictive condition of the present invention; If in another example operation, the quantity with transvercal induction axle of reaction signal is lacked than the quantity of the longitudinal induction axle with reaction signal, those transvercal induction axles that inductive axis selects 370 in circuit can select to have reaction signal classify as specific inductive axis.
In another example operation; Preliminary sense data SP includes the first preliminary sense data and the second preliminary sense data; Wherein preliminary detection circuit 360 control Driver Circuit 350 simultaneously drives a plurality of longitudinal induction axles; And control multiplexer 310 receives first sense data of corresponding each longitudinal induction axle respectively on a plurality of transvercal induction axles, producing this first preliminary sense data, and drives those transvercal induction axles simultaneously; And on those longitudinal induction axles, receive second sense data of corresponding each transvercal induction axle respectively; To produce this second preliminary sense data, in addition, preliminary detection circuit 360 can carry out the screening operation of sense data in addition to reduce the generation of erroneous judgement; For example, preliminary detection circuit 360 is to produce this first preliminary sense data and/or produce this second preliminary sense data according to each second sense data that surpasses this fault value TH according to each first sense data that surpasses a fault value TH.
After determining this at least one specific inductive axis; Initialization circuit 380 can set in first inductive axis this at least one specific inductive axis and with second inductive axis of this at least one specific inductive axis different dimensions (when this at least one specific inductive axis belonged to the longitudinal induction axle, those second inductive axis belonged to the transvercal induction axle; On the other hand, when this at least one specific inductive axis belonged to the transvercal induction axle, then those second inductive axis just belonged to the longitudinal induction axle) driving and reception produce sensing output in proper order.At first; Initialization circuit 380 can decide to drive and the reception order according to this at least one specific inductive axis and those second inductive axis; For instance; Initialization circuit 380 is set 350 pairs of specific inductive axis of driving circuit (longitudinal induction axle) X2 and is driven; And set multiplexer 310 use the sense data that all second inductive axis (transvercal induction axle) Y1～Y8 come to receive respectively corresponding specific inductive axis X2 (that is; Among buffer 311, setting corresponding second inductive axis (transvercal induction axle) Y1～Y8 is reading state), and through digital analog converter 320 this sense data is stored in the storage unit 330, then application of driver circuits 350 drives next specific inductive axis (being specific inductive axis X3) again; And set multiplexer 310 simultaneously and use the sense data that all second inductive axis Y1～Y8 come to receive respectively corresponding specific inductive axis X3, then this sense data is stored in the storage unit 330.By that analogy; Initialization circuit 380 can application of driver circuits 350 drive specific inductive axis X2, X3, X6 and X7 one by one; And when driving each specific inductive axis; Set multiplexer 310 and receive respectively sense data that should specific inductive axis producing the sensing output set of the last received sense data that corresponds respectively to the first specific inductive axis X2, X3, X6 and X7 of second inductive axis (transvercal induction axle) Y1～Y8 (promptly) in that second inductive axis (transvercal induction axle) Y1～Y8 is last, and this sensing exported be stored in the storage unit 330.At last; When decision-making circuit 390 receives completion instruction Fin; Decision-making circuit 390 just decides to touch result of detection according to this sensing output in the storage unit 330, and exports this touching result of detection by control interface 340, to determine pairing those touch points of this touch event.
Note that in this embodiment, sniffer 300 used digital analog converter 320 with sense data with the stores of numeral among storage unit 330; Yet this is not to be used for limiting scope of the present invention; For example, digital analog converter 320 also can in be built in the multiplexer 310, therefore; When multiplexer 310 received the sense data of corresponding inductive axis, multiplexer 310 was exported digitized this sense data immediately for subsequent treatment.
In the above embodiments; Outside preliminary locator(-ter); Initialization circuit 380 only need be made once multiplexer 310 and driving circuit 350 and being set, and can accomplish or the user sends and interrupts when accomplishing instruction Fin in scanning, to let processor can batch read the touching result of detection.Compared to detection circuit 200 well known in the prior art; Sniffer 300 needed set point numbers of the present invention can reduce in large quantities; Thereby significantly reduce sweep time, and make processor among scanning process, can carry out other work and promote overall efficiency.
In the above-mentioned example; Preliminary detection circuit 360 is to drive all longitudinal induction axles respectively; And be coupling at all transvercal inductions and receive reaction signal and to drive all transvercal induction axles, and, then survey the quantity of longitudinal induction axle and transvercal induction axle again with reaction signal at all longitudinal inductions receipts reaction signal that is coupling; And have in reaction signal longitudinal induction axle and the transvercal induction axle at those; The inductive axis that is chosen in negligible amounts on the dimension is used as specific inductive axis (in this example, four longitudinal induction axles have reaction signal, and the transvercal induction axle with reaction signal then has five).Yet; In the second embodiment of the present invention; Preliminary detection circuit 360 can be in those longitudinal induction axle X1～X8 and those transvercal induction axles Y1～Y8, and those inductive axis on the selected dimension drive, and those inductive axis on another dimension receive reaction signal; Producing preliminary sense data SP, and inductive axis selects circuit 370 just to select this at least one specific inductive axis according to preliminary sense data SP.For instance; In the example operation of Fig. 2; Select transvercal induction axle Y1～Y8 for use when preliminary detection circuit 360 and drive, and produce preliminary sense data SP, and inductive axis selects circuit 370 to draw the inductive axis with reaction signal by preliminary sense data SP at the last sense data that receives corresponding each transvercal induction axle respectively of longitudinal induction axle X1～X8; That is longitudinal induction axle X2, X3, X6 and X7, therefore just select longitudinal induction axle X2, X3, X6 and X7 as specific inductive axis.On the other hand; Selecting longitudinal induction axle X1～X8 for use when preliminary detection circuit 360 drives; And produce preliminary sense data SP at the last sense data that receives corresponding each longitudinal induction axle respectively of transvercal induction axle Y1～Y8; And inductive axis selects circuit 370 to draw the inductive axis with reaction signal by preliminary sense data SP, and promptly therefore transvercal induction axle Y2, Y3, Y4, Y6 and Y7 just select transvercal induction axle Y2, Y3, Y4, Y6 and Y7 as specific inductive axis.And after determining those specific inductive axis, sniffer 300 can follow the running program of aforementioned first embodiment to draw this touching result of detection, and for for simplicity, related description just repeats no more at this.
In sum, the invention provides a kind of detection method with and the correlation detection device, it is via driving of setting each inductive axis on the contact surface plate/sensing order, thereby can read the touching detection data apace and send processor to.
The above is merely the preferred embodiments of the present invention, and all various variations and modifications of doing according to claim of the present invention all should belong to covering scope of the present invention.
The main element symbol description
100 contact panels, 200,300 detection circuits
210,310 multiplexers, 211,311 buffers
220,320 digital analog converters, 230,330 storage units
240,340 control interfaces, 250,350 driving circuits
360 preliminary detection circuit 370 inductive axis are selected circuit
380 initialization circuits, 390 decision-making circuits
SX, SY sensing signal Fin accomplish instruction.
Claims (10)
1. one kind in order to detect the detection method of a plurality of touch points on contact panel, and said contact panel includes a plurality of first inductive axis on first dimension, on second dimension, include a plurality of second inductive axis, and said detection method includes:
Touch points according on the said contact panel produces a preliminary sense data;
According to said preliminary sense data, in said first inductive axis, determine at least one specific inductive axis;
Driving and reception that the application settings circuit is set said first inductive axis and said second inductive axis produce sensing output in proper order, include:
Application of driver circuits comes to drive one by one said at least one specific inductive axis; And on said second inductive axis of said contact panel, utilize multiplexer to receive the sense data of corresponding said at least one specific inductive axis respectively; Export to produce sensing, and said sensing output is stored in the storage assembly; And
Use decision-making circuit and finish receiving instruction, when said decision-making circuit received said completion instruction, said decision-making circuit just decided to touch result of detection according to said sensing output.
2. detection method according to claim 1, wherein said preliminary sense data include the first preliminary sense data and the second preliminary sense data, and the step that produces said preliminary sense data includes:
Drive said second inductive axis simultaneously, and on said first inductive axis, receive first sense data of corresponding each second inductive axis respectively, to produce the said first preliminary sense data; And
Drive said first inductive axis simultaneously, and on said second inductive axis, receive second sense data of corresponding each first inductive axis respectively, to produce the said second preliminary sense data;
The data bulk of the wherein said first preliminary sense data is not more than the data bulk of the said second preliminary sense data.
3. detection method according to claim 2, the step that wherein produces the said first preliminary sense data includes:
Each first sense data according to surpassing a fault value produces the said first preliminary sense data.
4. detection method according to claim 2, the step that wherein produces the said second preliminary sense data includes:
Each second sense data according to surpassing a fault value produces the said second preliminary sense data.
5. detection method according to claim 1, the step that wherein produces said preliminary sense data includes:
Drive said second inductive axis simultaneously, and on said first inductive axis, receive the sense data of corresponding each second inductive axis respectively, to produce said preliminary sense data; And
According to said preliminary sense data, the method that in said first inductive axis, determines said at least one specific inductive axis includes:
Select said at least one specific inductive axis according to said preliminary sense data at said first inductive axis.
6. one kind in order to detect the sniffer of a plurality of touch points on contact panel, and said contact panel includes a plurality of first inductive axis on first dimension, on second dimension, include a plurality of second inductive axis, and said sniffer includes:
Driving circuit is in order to drive said first inductive axis and said second inductive axis;
Multiplexer is in order to receive at least one sense data of corresponding said first inductive axis and second inductive axis;
Preliminary detection circuit is coupled to said driving circuit and said multiplexer, comes according to the touch points on the said contact panel to produce preliminary sense data in order to use said driving circuit and said multiplexer;
Inductive axis is selected circuit, is coupled to preliminary detection circuit, in order to according to said preliminary sense data, in said first inductive axis, determines at least one specific inductive axis;
Storage unit;
Initialization circuit; Be coupled to said driving circuit, said multiplexer, said inductive axis selection circuit and said storage unit; Driving and reception in order to set said first inductive axis and said second inductive axis produce sensing output in proper order; Controlling said driving circuit to drive one by one after said at least one specific inductive axis; On the said second specific inductive axis of said contact panel, receive the sense data of corresponding said at least one specific inductive axis respectively through said multiplexer, export, and said sensing output is stored in the said storage unit to produce sensing; And
Decision-making circuit is coupled to said storage unit, and in order to finishing receiving instruction, when said decision-making circuit received said completion instruction, said decision-making circuit determined the touching result of detection according to the said sensing output in the said storage unit.
7. sniffer according to claim 6, wherein:
Said preliminary sense data includes the first preliminary sense data and the second preliminary sense data; And
Said driving circuit drives said second inductive axis simultaneously; And control said multiplexer receives corresponding each second inductive axis respectively on said first inductive axis first sense data by said initialization circuit; To produce the said first preliminary sense data; And said driving circuit drives said first inductive axis simultaneously; And control said multiplexer receives corresponding each first inductive axis respectively on said second inductive axis second sense data by said initialization circuit, to produce the said second preliminary sense data;
The data bulk of the wherein said first preliminary sense data is not more than the data bulk of the said second preliminary sense data.
8. sniffer according to claim 7, wherein said preliminary detection circuit produces the said first preliminary sense data according to each first sense data that surpasses a fault value.
9. sniffer according to claim 7, wherein said preliminary detection circuit produces the said second preliminary sense data according to each second sense data that surpasses a fault value in addition.
10. detection method according to claim 6, wherein said preliminary detection circuit drives said second inductive axis simultaneously, and on said first inductive axis, receives the sense data of corresponding each second inductive axis respectively, to produce said preliminary sense data; And
Inductive axis selects circuit to select said at least one specific inductive axis according to said preliminary sense data at said first inductive axis.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106598364A (en) * | 2015-10-19 | 2017-04-26 | 义隆电子股份有限公司 | Pressure detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261553A (en) * | 2007-03-07 | 2008-09-10 | 三星电子株式会社 | Display device and method of driving the same |
| US20090273579A1 (en) * | 2008-04-30 | 2009-11-05 | N-Trig Ltd. | Multi-touch detection |
| CN101727235A (en) * | 2009-12-01 | 2010-06-09 | 深圳市汇顶科技有限公司 | Touch detecting method, touch detecting system and touch sensing device |
-
2010
- 2010-11-10 CN CN2010105390922A patent/CN102467275A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261553A (en) * | 2007-03-07 | 2008-09-10 | 三星电子株式会社 | Display device and method of driving the same |
| US20090273579A1 (en) * | 2008-04-30 | 2009-11-05 | N-Trig Ltd. | Multi-touch detection |
| CN101727235A (en) * | 2009-12-01 | 2010-06-09 | 深圳市汇顶科技有限公司 | Touch detecting method, touch detecting system and touch sensing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106598364A (en) * | 2015-10-19 | 2017-04-26 | 义隆电子股份有限公司 | Pressure detection method |
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Application publication date: 20120523 |