CN101344826B - Touch inductor and its induction signal processing method - Google Patents
Touch inductor and its induction signal processing method Download PDFInfo
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- CN101344826B CN101344826B CN2008102128502A CN200810212850A CN101344826B CN 101344826 B CN101344826 B CN 101344826B CN 2008102128502 A CN2008102128502 A CN 2008102128502A CN 200810212850 A CN200810212850 A CN 200810212850A CN 101344826 B CN101344826 B CN 101344826B
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Abstract
A touch sensing device for accelerating sensing signal processing operation comprises a plurality of groups of horizontal sensing lines, a plurality of groups of vertical sensing lines, a plurality of processing circuits and a plurality of sensing units. A plurality of sensing units output a plurality of groups of horizontal sensing signals and a plurality of groups of vertical sensing signals through a plurality of groups of horizontal sensing lines and a plurality of groups of vertical sensing lines. Each processing circuit is coupled to the corresponding horizontal sensing line group and the corresponding vertical sensing line group. The invention also discloses a sensing signal processing method, which mainly comprises the steps of synchronously scanning a plurality of groups of horizontal sensing lines in a first time interval so as to synchronously extract a plurality of groups of horizontal sensing signals, and synchronously scanning a plurality of groups of vertical sensing lines in a second time interval so as to synchronously extract a plurality of groups of vertical sensing signals. The touch sensing device of the invention can significantly improve the speed of sensing signal processing operation.
Description
Technical field
The present invention relates to a kind of touch inductor and induction signal processing method thereof, relate in particular to a kind of touch inductor and induction signal processing method thereof of handling operation in order to the sense of acceleration induction signal.
Background technology
In recent years, electronic product with contact surface plate has become the popular product guiding, utilize contact surface plate as the communication interface between user and the electronic product, can allow the user directly control the operation of electronic product, and need not pass through keyboard or mouse by the finger touches pattern.Generally speaking, contact surface plate is based on resistance-type contact surface plate and capacitor-type touch panel, the resistance-type contact surface plate is with voltage drop location touch position, capacitor-type touch panel comprises inductance capacitance usually, according to capacitance variations, orient touch position through signal Processing corresponding to the inductance capacitance of touch points.
Fig. 1 is the structural representation of known touch inductor.As shown in Figure 1, touch inductor 100 comprises first treatment circuit 110, second treatment circuit 120, induction panel 130, first transmission interface 140, second transmission interface 150, many horizontal lines of induction 115, many vertical lines of induction 125 and a plurality of sensing unit 135.Many horizontal lines of induction 115, many vertical lines of induction 125 and a plurality of sensing unit 135 are arranged on the induction panel 130.Each sensing unit 135 produces horizontal induced signal and vertical induced signal according to touch event; Horizontal induced signal exports first treatment circuit 110 to via the horizontal line of induction 115 of correspondence, and vertical induced signal exports second treatment circuit 120 to via the vertical line of induction 125 of correspondence.Vertical induced signal is sent to first treatment circuit 110 through first transmission interface 140 after doing the advance signal processing by second treatment circuit 120 again.First treatment circuit 110 is analyzed all levels and vertical induced signal, and to produce the touch coordinate signal, the touch coordinate signal exports main frame 180 to via second transmission interface 150, with the image relevant treatment operation of control display panel 190.
Fig. 2 is that touch inductor shown in Figure 1 is carried out synoptic diagram sweep time that induced signal is handled operation, and wherein transverse axis is a time shaft.In Fig. 2, show the first treatment circuit sweep time and second treatment circuit sweep time from top to bottom respectively.As shown in Figure 2, when touch inductor 100 was carried out induced signal processing operation, in the first preparation scanning buffer time T b1, first treatment circuit 110 was enabled to open the scanning sequence of beginning to many horizontal lines of induction 115; In horizontal scanning interval Tx, first treatment circuit 110 is carried out scanning sequence to many horizontal lines of induction 115 to extract a plurality of horizontal induced signals.In the second preparation scanning buffer time T b2, second treatment circuit 120 is enabled to open the scanning sequence of beginning to many vertical lines of induction 125; In vertical scanning interval Ty, second treatment circuit 120 is carried out scanning sequence to many vertical lines of induction 125 to extract a plurality of vertical induced signals.In signal processing time Tp, first treatment circuit 110 is carried out the analyzing and processing of all levels and vertical induced signal to produce the touch coordinate signal.Above-mentioned induced signal in the first preparation scanning buffer time T b1, horizontal scanning interval Tx, the second preparation scanning buffer time T b2, vertical scanning interval Ty and signal processing time Tp repeats with handling cycle of operation property, in order to continuous updating touch coordinate signal.
From the above, when first treatment circuit 110 is carried out scanning sequence to many horizontal lines of induction 115, second treatment circuit 120 is in idle state, and when second treatment circuit 120 was carried out scanning sequence to many vertical lines of induction 125, first treatment circuit 110 was in idle state.In addition, when first treatment circuit 110 is finished scanning sequence, need to postpone the second preparation scanning buffer time T b2 and open the scanning sequence of beginning many vertical lines of induction 125 with activation second treatment circuit 120.Just, above-mentioned known touch inductor be difficult to sweep time reduce because inefficient scanning sequence makes, so the processing speed of induced signal also just is difficult to lifting when carrying out induced signal processing operation.Induced signal for reduction process speed is handled operation, when touch event changes fast, because of the touch coordinate signal can't be updated immediately, will miss part and touch data, even cause touching the erroneous judgement of track.
Summary of the invention
According to embodiments of the invention, it discloses a kind of touch inductor, handles operation in order to the sense of acceleration induction signal.This kind touch inductor comprises first group of horizontal line of induction, second group of horizontal line of induction, first group of vertical line of induction, second group of vertical line of induction, first treatment circuit, second treatment circuit, a plurality of sensing unit and first transmission interface.
First group of horizontal line of induction is in order to export first group of horizontal induced signal.Second group of horizontal line of induction is in order to export second group of horizontal induced signal.First group of vertical line of induction is in order to export first group of vertical induced signal.Second group of vertical line of induction is in order to export second group of vertical induced signal.First treatment circuit is coupled in first group of horizontal line of induction receiving first group of horizontal induced signal, and is coupled in first group of vertical line of induction to receive first group of vertical induced signal.Second treatment circuit is coupled in second group of horizontal line of induction receiving second group of horizontal induced signal, and is coupled in second group of vertical line of induction to receive second group of vertical induced signal.Each sensing unit is coupled in the corresponding horizontal line of induction and the corresponding vertical line of induction, in order to produce corresponding horizontal induced signal and corresponding vertical induced signal, the wherein corresponding horizontal line of induction is contained in first group of horizontal line of induction or second group of horizontal line of induction, and the corresponding vertical line of induction is contained in first group of vertical line of induction or second group of vertical line of induction.First transmission interface is coupled between this first treatment circuit and this second treatment circuit, and this first treatment circuit or this second treatment circuit produce a touch coordinate signal according to this first group of horizontal induced signal, this second group of horizontal induced signal, this first group of vertical induced signal and this second group of vertical induced signal, wherein, each the group level that is used to produce this touch coordinate signal and vertical induced signal are the level and vertical induced signal of each treatment circuit after receiving.
The invention also discloses a kind of touch inductor, comprise: one first group of horizontal line of induction, in order to export one first group of horizontal induced signal; One second group of horizontal line of induction is in order to export one second group of horizontal induced signal; One the 3rd group of horizontal line of induction is in order to export one the 3rd group of horizontal induced signal; One first group of vertical line of induction is in order to export one first group of vertical induced signal; One second group of vertical line of induction is in order to export one second group of vertical induced signal; One the 3rd group of vertical line of induction is in order to export one the 3rd group of vertical induced signal; One first treatment circuit is coupled in this first group of horizontal line of induction receiving this first group of horizontal induced signal, and is coupled in this first group of vertical line of induction to receive this first group of vertical induced signal; One second treatment circuit is coupled in this second group of horizontal line of induction receiving this second group of horizontal induced signal, and is coupled in this second group of vertical line of induction to receive this second group of vertical induced signal; One the 3rd treatment circuit is coupled in the 3rd group of horizontal line of induction receiving the 3rd group of horizontal induced signal, and is coupled in the 3rd group of vertical line of induction to receive the 3rd group of vertical induced signal; A plurality of sensing units, each sensing unit is coupled in a corresponding horizontal line of induction and a corresponding vertical line of induction, each sensing unit is in order to produce a corresponding horizontal induced signal and a corresponding vertical induced signal, wherein should be contained in this first group of horizontal line of induction, this second group of horizontal line of induction or the 3rd group of horizontal line of induction by the horizontal line of induction of correspondence, the vertical line of induction of this correspondence is contained in this first group of vertical line of induction, this second group of vertical line of induction or the 3rd group of vertical line of induction; And one first transmission interface, be coupled in this first treatment circuit, this second treatment circuit, and the 3rd treatment circuit, and this first treatment circuit, this second treatment circuit, or the 3rd treatment circuit according to this first group of horizontal induced signal, this second group of horizontal induced signal, the 3rd group of horizontal induced signal, this first group of vertical induced signal, this second group of vertical induced signal, and the 3rd group of vertical induced signal produces a touch coordinate signal, wherein, each the group level that is used to produce this touch coordinate signal and vertical induced signal are the level and vertical induced signal of each treatment circuit after receiving.
According to embodiments of the invention, it also discloses a kind of induction signal processing method, handles operation in order to the induced signal that quickens touch inductor.Touch inductor comprises the many groups of horizontal lines of induction and the vertical line of induction of many groups.This kind induction signal processing method comprises: in first period, the first group of horizontal line of induction that scans the many groups of horizontal lines of induction is to extract first group of horizontal induced signal; In first period, the second group of horizontal line of induction that scans the many groups of horizontal lines of induction is to extract second group of horizontal induced signal; In second period, first group of vertical line of induction of the vertical line of induction of the many groups of scanning is to extract first group of vertical induced signal; In second period, second group of vertical line of induction of the vertical line of induction of the many groups of scanning is to extract second group of vertical induced signal; And produce a touch coordinate signal according to this first group of horizontal induced signal, this second group of horizontal induced signal, this first group of vertical induced signal and this second group of vertical induced signal.
The present invention also discloses a kind of induction signal processing method that is used for touch inductor, this touch inductor comprises the many groups of horizontal lines of induction and the vertical line of induction of many groups, this induction signal processing method comprises: in one first period, the one first group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one first group of horizontal induced signal; In this first period, the one second group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one second group of horizontal induced signal; In this first period, one the 3rd group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one the 3rd group of horizontal induced signal; In one second period, the one first group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one first group of vertical induced signal; In this second period, the one second group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one second group of vertical induced signal; In this second period, one the 3rd group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one the 3rd group of vertical induced signal; And produce a touch coordinate signal according to this first group of horizontal induced signal, this second group of horizontal induced signal, the 3rd group of horizontal induced signal, this first group of vertical induced signal, this second group of vertical induced signal and the 3rd group of vertical induced signal.
Touch inductor of the present invention and induction signal processing method thereof can significantly promote carries out the processing speed that induced signal is handled operation.
Description of drawings
Fig. 1 is the structural representation of known touch inductor.
Fig. 2 is that the touch inductor of Fig. 1 is carried out synoptic diagram sweep time that induced signal is handled operation, and wherein transverse axis is a time shaft.
Fig. 3 is the structural representation of first embodiment of touch inductor of the present invention.
Fig. 4 is that the touch inductor of Fig. 3 is carried out synoptic diagram sweep time that induced signal is handled operation, and wherein transverse axis is a time shaft.
Fig. 5 is the structural representation of second embodiment of touch inductor of the present invention.
Fig. 6 is that the touch inductor of Fig. 5 is carried out synoptic diagram sweep time that induced signal is handled operation, and wherein transverse axis is a time shaft.
Fig. 7 is used for the process flow diagram of the induction signal processing method of touch inductor for the present invention.
Wherein, description of reference numerals is as follows:
100,300,500 touch inductors
110,310,51,0_1 first treatment circuit
115,315, the 515 horizontal lines of induction
120,320,51,0_2 second treatment circuit
125,325, the 525 vertical lines of induction
130,330,530 induction panels
135,335,535 sensing units
140,340,540 first transmission interfaces
150,350,550 second transmission interfaces
180,380,580 main frames
190,390,590 display panels
316, first group of horizontal line of induction of 570_1
317, second group of horizontal line of induction of 570_2
326, first group of vertical line of induction of 575_1
327, second group of vertical line of induction of 575_2
510_N N treatment circuit
570_N N organizes the horizontal line of induction
575_N N organizes the vertical line of induction
The S705-S725 step
Tb prepares the scanning buffer time
The first preparation scanning buffer time of Tb1
The second preparation scanning buffer time of Tb2
Ti, Tm, Tx sweep time
Tj, Tn, Ty vertical scanning interval
The Tp signal processing time
Embodiment
For making the present invention more apparent and understandable, hereinafter according to touch inductor of the present invention and induction signal processing method thereof, elaborate in conjunction with appended accompanying drawing especially exemplified by embodiment, but the embodiment that is provided not is the scope that contains in order to restriction the present invention, carry out precedence and the method flow number of steps is more non-in order to limit it, any execution flow process that is reconfigured by method step, the method with impartial effect that produces is all the scope that the present invention is contained.
Fig. 3 is the structural representation of first embodiment of touch inductor of the present invention.As shown in Figure 3, touch inductor 300 comprises first treatment circuit 310, second treatment circuit 320, induction panel 330, first transmission interface 340, second transmission interface 350, many horizontal lines of induction 315, many vertical lines of induction 325 and a plurality of sensing unit 335.Many horizontal lines of induction 315, many vertical lines of induction 325 and a plurality of sensing unit 335 are arranged on the induction panel 330.Each sensing unit 335 is coupled in the corresponding horizontal line of induction 315 and the corresponding vertical line of induction 325, in order to export horizontal induced signal and the vertical induced signal that is produced.A plurality of sensing units 335 comprise pressure-sensitive (Pressure Sensing) element or sensitization (Light Sensing) element, sensing element is condenser type (Capacitive) sensing element or piezoelectricity (Piezoelectric) element, and photo-sensitive cell is photodiode (Photo-diode) or phototransistor (Photo-transistor).Many the horizontal line of induction 315 comprises first group of horizontal line of induction 316 and second group of horizontal line of induction 317, and many vertical lines of induction 325 comprise first group of vertical line of induction 326 and second group of vertical line of induction 327.
In another embodiment, second transmission interface 350 is coupled in second treatment circuit 320, and first transmission interface 340 is in order to be sent to second treatment circuit 320 with first group of horizontal induced signal and first group of vertical induced signal from first treatment circuit 310,320 of second treatment circuits are in order to analyze first group of horizontal induced signal, second group of horizontal induced signal, first group of vertical induced signal and second group of vertical induced signal are to produce the touch coordinate signal, and the touch coordinate signal exports the image relevant treatment operation of main frame 380 with control display panel 390 to via second transmission interface 350 again.
Fig. 4 is that touch inductor shown in Figure 3 is carried out synoptic diagram sweep time that induced signal is handled operation, and wherein transverse axis is a time shaft.In Fig. 4, show the first treatment circuit sweep time and second treatment circuit sweep time from top to bottom respectively.As shown in Figure 4, when touch inductor 300 is carried out induced signal processing operation, in preparation scanning buffer time T b, first treatment circuit 310 is enabled to open the scanning sequence of beginning to first group of horizontal line of induction 316, and second treatment circuit 320 also is enabled to open the scanning sequence of beginning to second group of horizontal line of induction 317 simultaneously.In horizontal scanning interval Tm, the scanning sequence that first treatment circuit 310 is carried out first group of horizontal line of induction 316, to extract first group of horizontal induced signal, second treatment circuit, 320 execution simultaneously are to the scanning sequence of second group of horizontal line of induction 317, to extract second group of horizontal induced signal; Just, first treatment circuit 310 and first group of horizontal line of induction 316 of second treatment circuit, 320 synchronous scannings and second group of horizontal line of induction 317 are in order to first group of horizontal induced signal of simultaneous extraction and second group of horizontal induced signal.In vertical scanning interval Tn, the scanning sequence that first treatment circuit 310 is carried out first group of vertical line of induction 326, to extract first group of vertical induced signal, second treatment circuit, 320 execution simultaneously are to the scanning sequence of second group of vertical line of induction 327, to extract second group of vertical induced signal; Just, first group of vertical line of induction 326 of synchronous scanning and second group of vertical line of induction 327 are in order to first group of vertical induced signal of simultaneous extraction and second group of vertical induced signal.In signal processing time Tp, first treatment circuit 310 is carried out the analyzing and processing of first group of horizontal induced signal, second group of horizontal induced signal, first group of vertical induced signal and second group of vertical induced signal, to produce the touch coordinate signal.
It is periodically to repeat that the induced signal of touch inductor 300 in above-mentioned preparation scanning buffer time T b, horizontal scanning interval Tm, vertical scanning interval Tn and signal processing time Tp handled operation, in order to continuous updating touch coordinate signal, and export up-to-date touch coordinate signal immediately to main frame 380.Be noted that: do not need the other delay preparation scanning buffer time between Tm and the vertical scanning interval Tn in horizontal scanning interval, cause first treatment circuit 310 and second treatment circuit 320 are behind preparation scanning buffer time T b, all in enabled status, so after finishing the scanning sequence of first group of horizontal line of induction 316 and second group of horizontal line of induction 317, can directly carry out the scanning sequence of first group of vertical line of induction 326 and second group of vertical line of induction 327.In addition, because first group of horizontal line of induction 316 of synchronous scanning and second group of horizontal line of induction 317, thus touch inductor of the present invention 300 carry out induced signals handle required Tm horizontal scanning interval of operation be about in fact known touch inductor 100 carry out induced signals handle operation required horizontal scanning interval Tx half.In like manner, because first group of vertical line of induction 326 of synchronous scanning and second group of vertical line of induction 327, so vertical scanning interval Tn also is about vertical scanning interval Ty half in fact.
In another embodiment, if the horizontal induced signal output of sensing unit 335 can not interfere with each other with vertical induced signal output, then horizontal scanning interval, Tm and vertical scanning interval Tn can overlap each other, just can carry out the scanning sequence of the horizontal line of induction of first group of horizontal line of induction 316, second group 317, first group of vertical line of induction 326 and second group of vertical line of induction 327 simultaneously, extract all horizontal induced signals and required time of all vertical induced signals in order to further shortening.From the above, touch inductor of the present invention can significantly promote carries out the processing speed that induced signal is handled operation, be used for immediate updating touch coordinate signal, make main frame can receive and handle up-to-date touch coordinate signal immediately, avoid changing hourglass weightlessness fast and will touch data at touch event.
Fig. 5 is the structural representation of second embodiment of touch inductor of the present invention.As shown in Figure 5, touch inductor 500 comprises a plurality of treatment circuit 510_1-510_N, induction panel 530, first transmission interface 540, second transmission interface 550, many horizontal lines of induction 515, many vertical lines of induction 525 and a plurality of sensing unit 535.Many horizontal lines of induction 515, many vertical lines of induction 525 and a plurality of sensing unit 535 are arranged on the induction panel 530.Each sensing unit 535 is coupled in the corresponding horizontal line of induction 515 and the corresponding vertical line of induction 525, in order to export horizontal induced signal and the vertical induced signal that is produced.A plurality of sensing units 535 comprise sensing element or photo-sensitive cell, and sensing element is condenser type sensing element or piezoelectric element, and photo-sensitive cell is photodiode or phototransistor.Many the horizontal line of induction 515 comprises first group of horizontal line of induction 570_1, second group of horizontal line of induction 570_N of horizontal line of induction 570_2 to the N group, and many vertical lines of induction 525 comprise first group of vertical line of induction 575_1, second group of vertical line of induction 575_2 to the N organizes vertical line of induction 575_N.
The first treatment circuit 510_1 is coupled in first group of horizontal line of induction 570_1 receiving first group of horizontal induced signal, and is coupled in first group of vertical line of induction 575_1 to receive first group of vertical induced signal.The second treatment circuit 510_2 is coupled in second group of horizontal line of induction 570_2 receiving second group of horizontal induced signal, and is coupled in second group of vertical line of induction 575_2 to receive second group of vertical induced signal.N treatment circuit 510_N is coupled in the horizontal line of induction 570_N of N group receiving the horizontal induced signal of N group, and is coupled in N and organizes vertical line of induction 575_N and organize vertical induced signal to receive N.The coupling operational relation of all the other treatment circuits is in like manner analogized.
In alternate embodiment, second transmission interface 550 is coupled in X treatment circuit 510_X, X be between 1 and N between integer, and first transmission interface 540 is used for the horizontal induced signal of all the other groups beyond the horizontal induced signal of X group is sent to X treatment circuit 510_X from all the other treatment circuits, and X is organized beyond the vertical induced signal all the other organize vertical induced signal and be sent to X treatment circuit 510_X from all the other treatment circuits, X treatment circuit 510_X then organizes vertical induced signal to produce touch coordinate signal with first group to N to the horizontal induced signal of N group in order to analyze first group, and the touch coordinate signal exports the image relevant treatment operation of main frame 580 with control display panel 590 to via second transmission interface 550 again.
Fig. 6 is that touch inductor shown in Figure 5 is carried out synoptic diagram sweep time that induced signal is handled operation, and wherein transverse axis is a time shaft.In Fig. 6, show first treatment circuit sweep time, the second treatment circuit sweep time and N treatment circuit sweep time from top to bottom respectively, all the other treatment circuits are in like manner analogized sweep time.As shown in Figure 6, when touch inductor 500 is carried out induced signal processing operation, in preparation scanning buffer time T b, the first treatment circuit 510_1 is enabled to open the scanning sequence of beginning to first group of horizontal line of induction 570-_1, and second treatment circuit 510_2 to the N treatment circuit 510_N is enabled to open the scanning sequence of beginning to second group of horizontal line of induction 570_N of horizontal line of induction 570_2 to the N group simultaneously.
In horizontal scanning interval Ti, the first treatment circuit 510_1 carries out scanning sequence to first group of horizontal line of induction 570_1 to extract first group of horizontal induced signal, second treatment circuit 510_2 to the N treatment circuit 510_N carries out second group of horizontal line of induction 570_2 to the N is organized the scanning sequence of horizontal line of induction 570_N to extract second group to the horizontal induced signal of N group simultaneously, just, first group of horizontal line of induction 570_1 to the N of first treatment circuit 510_1 to the N treatment circuit 510_N synchronous scanning organizes horizontal line of induction 570_N, and first group of horizontal induced signal to the N organizes horizontal induced signal in order to simultaneous extraction.In vertical scanning interval Tj, the first treatment circuit 510_1 carries out scanning sequence to first group of vertical line of induction 575_1 to extract first group of vertical induced signal, simultaneously second treatment circuit 510_2 to the N treatment circuit 510_N carries out scanning sequence that second group of vertical line of induction 575_2 to the N organized vertical line of induction 575_N and organizes vertical induced signal to extract second group to N, just, first group of vertical line of induction 575_1 to the N of synchronous scanning organizes vertical line of induction 575_N, and first group of vertical induced signal to the N organizes vertical induced signal in order to simultaneous extraction.In signal processing time Tp, the first treatment circuit 510_1 carries out first group of analyzing and processing of organizing vertical induced signal to the horizontal induced signal of N group and first group to N to produce the touch coordinate signal.
The induced signal of touch inductor 500 in above-mentioned preparation scanning buffer time T b, horizontal scanning interval Ti, vertical scanning interval Tj and signal processing time Tp repeats with handling cycle of operation property, in order to continuous updating touch coordinate signal, and export up-to-date touch coordinate signal immediately to main frame 580.Please note, do not need between Ti and the vertical scanning interval Tj to postpone the preparation scanning buffer time in addition in horizontal scanning interval, cause first treatment circuit 510_1 to the N treatment circuit 510_N is behind preparation scanning buffer time T b, all in enabled status, so after finishing the scanning sequence of first group of horizontal line of induction 570_N of horizontal line of induction 570_1 to the N group, can directly carry out the scanning sequence that first group of vertical line of induction 575_1 to the N organizes vertical line of induction 575_N.In addition, because first group of horizontal line of induction 570_1 to the N of synchronous scanning organize horizontal line of induction 570_N, thus touch inductor of the present invention 500 carry out induced signals handle required Ti horizontal scanning interval of operation be about in fact known touch inductor 100 carry out induced signals handle operation required horizontal scanning interval Tx 1/N.In like manner, because first group of vertical line of induction 575_1 to the N of synchronous scanning organizes vertical line of induction 575_N, so vertical scanning interval Tj also is about the 1/N of vertical scanning interval Ty in fact.
In another embodiment, if the horizontal induced signal output of sensing unit 535 can not interfere with each other with vertical induced signal output, then horizontal scanning interval, Ti and vertical scanning interval Tj can overlap each other, just, can carry out first group of vertical line of induction 575_1 to the N of the horizontal line of induction 570_N of horizontal line of induction 570_1 to the N group simultaneously and organize the scanning sequence of vertical line of induction 575_N, extract all horizontal induced signals and required time of all vertical induced signals in order to further shortening with first group.From the above, touch inductor 500 of the present invention can significantly promote carries out the processing speed that induced signal is handled operation, be used for immediate updating touch coordinate signal, make main frame 580 can receive and handle up-to-date touch coordinate signal immediately, avoid changing hourglass weightlessness fast and will touch data at touch event.
Fig. 7 is used for the process flow diagram of the induction signal processing method of touch inductor for the present invention.Touch inductor comprises the many groups of horizontal lines of induction, organizes the vertical line of induction more, reaches a plurality of treatment circuits.As shown in Figure 7, induction signal processing method 700 comprises the following step:
Step S705: in the time, a plurality of treatment circuits of activation are to open the beginning scanning sequence at preparation preparation scanning buffer;
Step S710: in first period, how the horizontal line of induction of group is to extract many groups of horizontal induced signals in synchronous scanning;
Step S715: in second period, synchronous scanning is organized the vertical line of induction to extract the vertical induced signal of many groups more;
Step S720: the analyzing and processing of carrying out many horizontal induced signals of group and the vertical induced signal of many groups is to produce the touch coordinate signal; And
Step S725: the touch coordinate signal is sent to the image relevant treatment operation of main frame with the control display panel.
In the flow process of above-mentioned induction signal processing method 700, if the extraction procedure of horizontal induced signal can interfere with each other with the extraction procedure of vertical induced signal, then first period and second period do not overlap each other, but first period can be interchangeable and do not influence the work efficiency of touch inductor with the context of second period.Because the scanning sequence of the many groups of horizontal lines of induction is to carry out synchronously, the time span of first period is scanning single group required time of the horizontal line of induction, but not known induced signal handle operation according to the required time of all horizontal lines of induction of sequential scanning, extract the required time of all horizontal induced signals so can significantly shorten.In like manner, because the scanning sequence of the vertical line of induction of many groups is to carry out synchronously, the time span of second period is scanning single group required time of the vertical line of induction, but not the known induced signal processing operation according to the required time of all vertical lines of induction of sequential scanning is extracted the required time of all vertical induced signals so can significantly shorten.
In another embodiment, if the extraction procedure of horizontal induced signal can not interfere with each other with the extraction procedure of vertical induced signal, then first period and second period can overlap each other, just, the scanning sequence of the many groups of horizontal lines of induction and the vertical line of induction of many groups be can carry out simultaneously, all horizontal induced signals and required time of all vertical induced signals extracted in order to further shortening.From the above, induction signal processing method 700 of the present invention can significantly reduce extraction level and required level and vertical scanning interval of vertical induced signal, with so that touch inductor is carried out induced signal handles the processing speed of operation and significantly promote, so main frame just can receive and handle up-to-date touch coordinate signal immediately, avoid changing hourglass weightlessness fast and will touch data at touch event.
In a word, touch inductor of the present invention is to utilize a plurality of treatment circuits to handle operation in conjunction with the many groups of horizontal lines of induction and the vertical line of induction of many groups to carry out induced signal.Induction signal processing method of the present invention is to carry out the scanning sequence of the many groups of horizontal lines of induction with many groups of horizontal induced signals of simultaneous extraction in inter-sync horizontal scanning interval, and carry out the scanning sequences of organizing the vertical line of induction in the vertical scanning interval inter-sync more and organize the vertical line of induction with simultaneous extraction more, so can significantly shorten horizontal scanning interval and vertical scanning interval.In addition, between horizontal scanning interval and vertical scanning interval, do not need to postpone the preparation scanning buffer time in addition, can further shorten and carry out induced signal and handle the operation required time, so touch inductor of the present invention and induction signal processing method thereof can significantly promote and carry out the processing speed that induced signal is handled operation.
Though the present invention with embodiment openly as above; right its is not in order to limit the present invention; any those of ordinary skills; without departing from the spirit and scope of the present invention; when can doing various changes and retouching, so protection scope of the present invention is when being as the criterion with the protection domain that claim was defined of enclosing.
Claims (14)
1. touch inductor comprises:
One first group of horizontal line of induction is in order to export one first group of horizontal induced signal;
One second group of horizontal line of induction is in order to export one second group of horizontal induced signal;
One first group of vertical line of induction is in order to export one first group of vertical induced signal;
One second group of vertical line of induction is in order to export one second group of vertical induced signal;
One first treatment circuit is coupled in this first group of horizontal line of induction receiving this first group of horizontal induced signal, and is coupled in this first group of vertical line of induction to receive this first group of vertical induced signal;
One second treatment circuit is coupled in this second group of horizontal line of induction receiving this second group of horizontal induced signal, and is coupled in this second group of vertical line of induction to receive this second group of vertical induced signal;
A plurality of sensing units, each sensing unit is coupled in a corresponding horizontal line of induction and a corresponding vertical line of induction, each sensing unit is in order to produce a corresponding horizontal induced signal and a corresponding vertical induced signal, wherein should be contained in this first group of horizontal line of induction or this second group of horizontal line of induction by the horizontal line of induction of correspondence, the vertical line of induction of this correspondence is contained in this first group of vertical line of induction or this second group of vertical line of induction; And
One first transmission interface, be coupled between this first treatment circuit and this second treatment circuit, and this first treatment circuit or this second treatment circuit produce a touch coordinate signal according to this first group of horizontal induced signal, this second group of horizontal induced signal, this first group of vertical induced signal and this second group of vertical induced signal, wherein, each the group level that is used to produce this touch coordinate signal and vertical induced signal are the level and vertical induced signal of each treatment circuit after receiving.
2. touch inductor as claimed in claim 1, wherein this sensing unit comprises a sensing element or a photo-sensitive cell.
3. touch inductor as claimed in claim 2, wherein this sensing element is a condenser type sensing element or a piezoelectric element.
4. touch inductor as claimed in claim 2, wherein this photo-sensitive cell is a photodiode or a phototransistor.
5. touch inductor as claimed in claim 1 also comprises:
One second transmission interface is coupled in this first treatment circuit of producing this touch coordinate signal or this second treatment circuit to receive this touch coordinate signal, also is coupled in a main frame, and this second transmission interface is in order to be sent to this main frame with this touch coordinate signal.
6. touch inductor comprises:
One first group of horizontal line of induction is in order to export one first group of horizontal induced signal;
One second group of horizontal line of induction is in order to export one second group of horizontal induced signal;
One the 3rd group of horizontal line of induction is in order to export one the 3rd group of horizontal induced signal;
One first group of vertical line of induction is in order to export one first group of vertical induced signal;
One second group of vertical line of induction is in order to export one second group of vertical induced signal;
One the 3rd group of vertical line of induction is in order to export one the 3rd group of vertical induced signal;
One first treatment circuit is coupled in this first group of horizontal line of induction receiving this first group of horizontal induced signal, and is coupled in this first group of vertical line of induction to receive this first group of vertical induced signal;
One second treatment circuit is coupled in this second group of horizontal line of induction receiving this second group of horizontal induced signal, and is coupled in this second group of vertical line of induction to receive this second group of vertical induced signal;
One the 3rd treatment circuit is coupled in the 3rd group of horizontal line of induction receiving the 3rd group of horizontal induced signal, and is coupled in the 3rd group of vertical line of induction to receive the 3rd group of vertical induced signal;
A plurality of sensing units, each sensing unit is coupled in a corresponding horizontal line of induction and a corresponding vertical line of induction, each sensing unit is in order to produce a corresponding horizontal induced signal and a corresponding vertical induced signal, wherein should be contained in this first group of horizontal line of induction, this second group of horizontal line of induction or the 3rd group of horizontal line of induction by the horizontal line of induction of correspondence, the vertical line of induction of this correspondence is contained in this first group of vertical line of induction, this second group of vertical line of induction or the 3rd group of vertical line of induction; And
One first transmission interface, be coupled in this first treatment circuit, this second treatment circuit, and the 3rd treatment circuit, and this first treatment circuit, this second treatment circuit, or the 3rd treatment circuit according to this first group of horizontal induced signal, this second group of horizontal induced signal, the 3rd group of horizontal induced signal, this first group of vertical induced signal, this second group of vertical induced signal, and the 3rd group of vertical induced signal produces a touch coordinate signal, wherein, each the group level that is used to produce this touch coordinate signal and vertical induced signal are the level and vertical induced signal of each treatment circuit after receiving.
7. touch inductor as claimed in claim 6 also comprises:
One second transmission interface, this first treatment circuit, this second treatment circuit or the 3rd treatment circuit that are coupled in this touch coordinate signal of generation are to receive this touch coordinate signal, this second transmission interface also is coupled in a main frame, and this second transmission interface is in order to be sent to this main frame with this touch coordinate signal.
8. induction signal processing method that is used for touch inductor, this touch inductor comprise the many groups of horizontal lines of induction and the vertical lines of induction of many groups, and this induction signal processing method comprises:
In one first period, the one first group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one first group of horizontal induced signal;
In this first period, the one second group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one second group of horizontal induced signal;
In one second period, the one first group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one first group of vertical induced signal;
In this second period, the one second group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one second group of vertical induced signal; And
Produce a touch coordinate signal according to this first group of horizontal induced signal, this second group of horizontal induced signal, this first group of vertical induced signal and this second group of vertical induced signal.
9. induction signal processing method as claimed in claim 8, wherein this first period and this second period do not overlap each other, and this first period is before this second period.
10. induction signal processing method as claimed in claim 8, wherein this first period and this second period do not overlap each other, and this second period is before this first period.
11. induction signal processing method as claimed in claim 8 also comprises:
This touch coordinate signal is sent to a main frame.
12. induction signal processing method as claimed in claim 8 also comprises:
Before this first period and this second period, postpone the preparation scanning buffer time.
13. an induction signal processing method that is used for touch inductor, this touch inductor comprise the many groups of horizontal lines of induction and the vertical line of induction of many groups, this induction signal processing method comprises:
In one first period, the one first group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one first group of horizontal induced signal;
In this first period, the one second group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one second group of horizontal induced signal;
In this first period, one the 3rd group of horizontal line of induction that scans the described many groups of horizontal lines of induction is to extract one the 3rd group of horizontal induced signal;
In one second period, the one first group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one first group of vertical induced signal;
In this second period, the one second group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one second group of vertical induced signal;
In this second period, one the 3rd group of vertical line of induction that scans the vertical line of induction of described many groups is to extract one the 3rd group of vertical induced signal; And
Produce a touch coordinate signal according to this first group of horizontal induced signal, this second group of horizontal induced signal, the 3rd group of horizontal induced signal, this first group of vertical induced signal, this second group of vertical induced signal and the 3rd group of vertical induced signal.
14. induction signal processing method as claimed in claim 13 also comprises:
This touch coordinate signal is sent to a main frame.
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| CN101634924B (en) * | 2009-08-25 | 2011-04-27 | 友达光电股份有限公司 | Touch panel device with high touch sensitivity and touch positioning method thereof |
| TWI423107B (en) * | 2011-04-07 | 2014-01-11 | Raydium Semiconductor Corp | Detection method for touch input device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2518149Y (en) * | 2001-12-30 | 2002-10-23 | 汉王制造有限公司 | Copper sensitive writing board for computer hand writing input |
| CN1886721A (en) * | 2003-11-25 | 2006-12-27 | 索林集团德国有限公司 | Touch-sensitive device and fault detraction device for a touch-sensitive device, in particular for medico-technical devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2518149Y (en) * | 2001-12-30 | 2002-10-23 | 汉王制造有限公司 | Copper sensitive writing board for computer hand writing input |
| CN1886721A (en) * | 2003-11-25 | 2006-12-27 | 索林集团德国有限公司 | Touch-sensitive device and fault detraction device for a touch-sensitive device, in particular for medico-technical devices |
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