TW200933466A - Noise cancellation device and the method of capacitive touch panel - Google Patents

Abstract

Noise cancellation device and the method of capacitive touch panel are disclosed. The present invention solves the noise formed by a filter and integration circuit itself or other environment in prior art. The device utilizes at least one switches circuit to omit the filter and integration circuit. The device transmits at least one signal outputted from a current measure circuit to a control unit for calculating a touch position simultaneously to achieves cancellation noise objection.

Description

200933466 IX. Description of the invention: [Technical field to which the invention pertains] The present invention is a strict control; the Huyi green servant system, the sensing device and the method thereof,

The control of the capacitive touch panel is 罝+t L-diameter, the sensing device and the method thereof. [Prior Art] Traditionally, the 舲λ over τ & turn-in system of the electronic device is based on the keyboard 舆 mouse, and 10 is not in the human intuitive way. After the touch panel has been widely used = large In a small electronic device, at this time, the user can make a contact wheeling of the electronic device by means of a hand or a stylus object hitting the panel thereon. At this time, the salt sensor is sensed under the touch panel. The position of the contact is used to achieve the purpose of operating the touch electronic dream and eMule. The touch panel can be classified into resistive, capacitive, acoustic, optical, and electromagnetic touch panels; the touch panel can be classified as 'including Classification of touch panels and touch panels. Taking a capacitive touch panel based on a capacitive touch sensing mechanism as an example, it is determined by sensing the current of each side of a contact input position and determining the contact input by the mutual relationship of the currents. s position. Please refer to the first figure, which is a schematic diagram of the sensing of the position input of a conventional capacitive touch panel. As shown in the first figure, a capacitive touch panel is basically composed of a transparent substrate, a conductive coating 12, an electrode pattern 13, and an insulating hard coating layer 4, wherein the transparent substrate Π Glass, the electrode pattern 丨3 is formed on the touch panel 200933466

1 The peripheral part of the crucible, A '", compensates for the distribution of the electric power of one of the conductive coatings 12 during operation. The same month refers to the first country. The ping-tu's two diagrams are conventional capacitive touches. The position of the control panel determines the structure of the related circuit. § The four corners of the touch handle 1 η 攸10 are connected to an external wire A, Β, C and D, and

Each of the receiving-alternating sensing signals AC 1, AC2, AC3, and AC4 is used to pick up the position of one of the contacts p on the touch panel 1 接.

In the continuous operation ΒτΓ 'the alternating current sensing signals AC】, aC2, aC3 and AC4 are AC square wave or sine wave voltage signals of the same amplitude, at this time each external wire A, B, Γ r> u gentleman A current II, 12, 13 and 14 pass through each of C and D. By taking the current change amount Δ η, Δ 12, Δ 13 and Δ 14 of each of the external conductors A, B, C and D before and after the occurrence of the contact P, the coordinates of the position of the contact ρ It can be calculated as follows: χ=(ΔΙ3 + ΔΙ4-ΔΙ1-ΔΙ2)/(ΔΙ1 + ΔΙ2+ΔΙ3+ΔΙ4) (i),

Il + Δ Ι4-Δ Ι3·Δ Ι2)/(Δ Ι1 + Δ Ι2+Δ Ι3+Δ 14) (7). The measurement method of the above-mentioned current variation amounts Δ η, Δ Ι 2, Δ Ι 3 and Δ ΐ 4 is realized in the second diagram, and the measurement method of the Δη current variation amount is measured by the current measurement circuit 〖5 The current η is output, and the measured current II is transmitted to the filter circuit 16, the noise is eliminated, and finally the integrated current signal is transmitted to the controller 1 8 ' via the integrating circuit 17 A kind of analog/digital conversion circuit 8 8 in the controller 18 performs the action of converting the analog signal into a digital signal, and then the controller j 8 6 200933466: the included position determining unit 1δ2 calculates the δπ current'. Readable (four) ρ weight. The analog/digital conversion circuit can be shared by the controller 18 by calculating the δι and the polling mechanism respectively = 1 8 〇 white port processing time. Then, the above two equations „ coordinates are used. dT # The X-axis and the γ-axis are due to the above-mentioned Δ π, △ 12, Λ η „ 呌 呌 and △ 14 are polling mechanism i隹e ❿ 仃 leaf nose, that is, first calculate ΔΙ1 mechanism into ΔΙ1, ΔΙ2 ΔΠ用Λ#πΛΙ2, and so on, ΔΙ3 and ΔΗ are calculated, but this may result in a difference of + ΑΑ V i, the difference between the butts is a gap 'to the U-axis coordinates and the actual touch The bit, , ^ 'wave circuit 1 6 and the integral power 踗 7 ' itself generate noise or external bar - circuit 17, outside the whistle _, ° and & In addition, the figure can be seen in the diagram of the figure, for example, using multiple: = system architecture will result in cost circuit 16 and integration circuit 17. Asked by the current measuring circuit...遽波[Inventive content] There is stupidity in the above-mentioned habits. &############################################################################ The control of the board is early, the sensing device and/or the square, and the at least one switching circuit is respectively placed on the X-axis and the Y-axis, thereby reducing the back-end to use the same circuit and simultaneously Receiving the current signal measured by the switch _ circuit set on the X-axis and the Υ axis, through the control of the coordinate position. ^ J 4 different, thus overcoming the time difference and the external 7 200933466 noise problem. In order to achieve the above object, the present invention proposes a sensing skirt of a panel. The capacitive touch panel is solid: the touch has a transparent substrate and the transparent handle, and the shell is rectangular, and the transparent mask on the board The σ field is formed and located on the transparent base-second X side, a first: sensing layer, and has a -X-X side, ^, a γ-side and a second υ side, and the sensing device includes At least one X-side switching circuit, at least _ γ 匕 source and a control circuit. #『路'- Sense: Some X-side switch circuits are separate electrical connections and the second X side, and the side of the ° side: two-off circuit, each of which is electrically connected to the Μ, the second side . The sensing source includes a -4 Τ and a second sensing signal source. The control circuit receives at least a second sensing signal generated by the source, according to the second sensing signal or the second sensing signal gate or the side switching circuits (4) And simultaneously receiving == at least one side current signal generated by the switching circuit, or at least - γ side current signal generated by the Υh circuit to determine the position of the contact-contact position or - two Another example of the fish moon--the embodiment proposes a capacitive type:::,! The sensing device in this embodiment is added--the first sampling:: ί^-: the sample-and-hold circuit sampling and holding circuit is disposed in the first current measuring circuit and Between the first analog-to-digital/digital conversion circuit, with the same 200933466::Γ: Χ current signal or the first ¥ side current signal for signal:: action, thereby eliminating the first x-side open circuit or the first γ side The noise generated by the switching circuit 倮 The holding circuit is disposed between the second electrical slave I circuit and the second analog/digital transfer , to simultaneously connect: the x side current signal or the second γ side current signal For the signal holding action, thereby eliminating the second side switch circuit or the second The noise generated by the circuit is closed. Another embodiment of the present invention provides a sensing device for a capacitive touch panel. In the control unit of the sensing device in this embodiment, only one analog/digital conversion lightning path is used. The 电路 supply circuit, U and the addition of an electronic switch, can eliminate the noise generated by the circuit or the external environment. 2. To achieve the above object, the present invention provides a method for eliminating noise of the capacitive touch panel, including providing - a first sensing signal source and a second sensing signal source; respectively transmitting the first sensing signal and the second sensing signal to the first side, the first side, the second side, and the second side Side: obtaining a first X-side analog current signal, a first side analog motor 3fl唬, a second X-side analog current signal, and a second γ-side analog current signal; respectively converting the first-X side analog current a signal, the first gamma-side analog current signal, the second X-side analog current signal, and the second Y-side analog power unit"fl to a first-side digital current signal, a first side digital current signal, 1-X side digital current signal and - And a second Y-side digital current signal; and simultaneously transmitting the first-X side digital current signal, the first-Y-side digital current signal, the second X-side digital current 200933466, and the second γ-side digital f,·* 15 / 3tL is reached - the position determining unit operates to obtain ~x and one y coordinates of a contact position. In order to achieve the conclusion of the present invention: _ war%% of the techniques, means and functions It is easy to understand 'Please refer to the following „I Ί 乂 详细 有关 有关 有关 有关 有关 有关 有关 有关 有关 有关 有关 详细 详细 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 相信 。 。 。 。 。 However, the drawings are for reference and description only, and are not intended to limit the invention.

Ο [Embodiment] The first picture is taken in the month of October, and the third picture is the capacitive touch panel of the present invention: a schematic diagram of the sensing device. As shown in the third figure, the capacitive touch panel has a rectangular shape on the solid shell, and has a transparent substrate and the transparent substrate formed in the same shape and a square; a transparent conductive layer on the transparent substrate has a sensing layer and has a third layer The sensing device 20 of the present invention includes a sensing source 21, a capacitive touch panel 22, at least a side switch circuit 23, and at least a side, a second X side, a first gamma side, and a second gamma side. A gamma side switching circuit 24 and a control circuit 27. 1. The sensing source 2 1 includes a first sensing signal source and a second sensing device, a tiger source, and the first sensing signal source and the second sensing signal source are respectively generated to the first sensing signal and at least—the second Sensing signal. The X side opening circuits 23 are electrically connected to the first side and the second side, respectively, and the gamma 'exhaust circuits 24 are electrically connected to the first γ side and the second γ side, respectively. The circuit 27 receives the first sensing signal and the second sensing signal, and turns on the side switch circuit 23 or the side switch circuit 24 according to the 10th 200933466 γ-sensing signal or the second sensing signal, and simultaneously receives the X-side switch. At least one side current signal generated by the circuit 23 and at least one gamma side current signal generated by the gamma side switching circuit 24 are respectively subjected to appropriate operations to determine an X coordinate or a position of the position of the contact. coordinate. In a preferred embodiment, the X-side switch circuit 23 and the γ-side switch circuit 24 can be a short circuit, and the first sense signal source and the second sense signal source are the same.

且 and the first sensing signal and the second sensing signal are the same. The control circuit 27 further includes at least one current measuring circuit 27 and a control unit 272' current measuring circuit 27 for receiving the X side current signal or the side current signal. The control unit 272 further includes at least one analog/digital conversion circuit 2720 and a position determining unit 2722. The analog/digital conversion circuit 2720 is configured to convert at least one side analog signal generated by the X side current signal into at least one side digital signal. Or at least one gamma side analog signal generated by the gamma side current signal is converted into at least one gamma side digital signal. The position determining unit-2722 performs an appropriate operation on the digital signal and the gamma side digital signal to obtain a χ coordinate or γ symmetry. Please refer to the fourth figure. The fourth figure is a schematic diagram of a sensing device of a touch panel according to a first embodiment of the present invention. As shown in the fourth figure, the touch panel 22 has a substantially rectangular shape and has a transmissive layer on the transparent substrate, and has a transmissive layer on the transparent substrate. - the first X side, the second side and the second side, the second side, the capacitive touch # γ side and the & panel 22 have a working layer 11 200933466 area 220, a contact P Acting in the work area 220. The sensing device 20 of the present invention comprises a sensing source 21, a first X-side switching circuit 28, a second X-side switching circuit 25', a first gamma-side switching circuit 29, and a second Y-side switching circuit 26. And a control circuit 27. The sensing source 2 1 includes a dimming signal source 2 1 2, the first sensing signal source 2 1 0 generates a first sensing signal VS1, and the second sensing signal source 212 generates a second sensing signal VS2.

When the contact position of the capacitive touch panel 22 is pressed by a user and the contact P is generated in the working area 220, the principle of the conventional capacitive touch panel 22 is used in the fourth of the capacitive touch panel 22 Each of the corners receives the first sensing signal vs 1 and the second sensing signal VS2 to provide the position of the I-measuring contact P. As can be seen from the diagram of the fourth figure, in actual operation, the first sensing signal VS1 has 12 and 13 currents on the first X side, and ^ and μ on the second side. The current 2: and the second sensing signal VS2 each have 4 scoops on the _γ side, and the second sensing signals ν and . There are η-X-side switch circuits 28 on the υ-υ side, electrically connected to the X-side switch circuit 25, and electrically connected to the second, side, and second circuit-electrically connected to the first γ :, two:: side switch %, electrically connected to the m-- (four) off circuit control circuit 27 includes - first current measuring circuit 276 and 卞丨 ... Li Shu Road 275, - second tandem early 274. The control unit 27 12 200933466 includes a first analog/digital conversion circuit 2740, a second analog/digital conversion circuit 2742, and a position determination unit 2744. The position determining unit 2744 further includes an -X coordinate determiner 2744〇 and a γ coordinate determiner 27442 °. The first current measuring circuit 275 receives one of the first X-side current signals or the first Y-side generated by the first X-side switching circuit 28. The switching circuit 29 generates a first Y-side current signal, and the second current measuring circuit 276 接收 receives a second X-side current signal generated by the second X-side switching circuit 25 or the second Y-side switching circuit 26 - a second gamma side current signal. The first analog/digital conversion circuit 274 is configured to convert one of the first X-side analog signals generated by the first buffer side current signal into a first side digital signal, or the first one of the first side current signals. The gamma side analog signal is converted into a first gamma side digital signal, and the second analog/digital conversion circuit 2742 is to convert the second side analog 汛唬 generated by the second side current signal into a second side digital signal. Or the second side analog signal generated by the second γ-side current signal is converted into a second side digital signal. The position determining unit 2848 is electrically connected to the first analog/digital conversion circuit 2740 and the second analog/digital conversion circuit 2742. The χ coordinate determiner 27440 is configured to turn on the first side switch circuit 28 according to the received first sensing signal. And the second side switch circuit 25, and simultaneously receiving the first side current digital signal and the second side digital current signal, respectively performing the first X side current digital signal and the second side digital current signal respectively.

(3) and 200933466 After the operation, the coordinates of the position of the contact point P are determined, and the coordinate determiner 27442 is configured to turn on the first-gamma side switch circuit 29 and the second side switch circuit according to the received second sensing signal. 26, and simultaneously receiving the first buffer side current digital signal and the second gamma side digital current signal, respectively performing the appropriate operation on the first side current digital signal and the second side digital current signal to determine the contact point ρ A coordinate of the location. The X and y coordinate values of the contact Ρ position can be obtained by the following relationship with the conventional technique: x=((12 + 13 )-(11 +14))/11 +12+13+14 y = ( (I3 + I4)-(11+12))/11+12 + 13+14 (4). The above (12 + 13) is calculated by using the first X-side switching circuit to be turned on, and '(II+14) is calculated by using the second side switch circuit 25 to be turned on, (13+14) It is calculated by using the first γ-side switching circuit 29 to turn on and '11+12' is turned on by the _γ-side switching circuit 26. The first embodiment differs from the prior art in that the first side switch circuit 28, the second X side switch circuit 25, the first gamma side switch circuit 29, and the second side switch circuit 26 are used to reduce the conventional technique. The plurality of identical circuits 'and the conventional filter circuit and the integration circuit' are omitted, but the first X side analog signal of the first current measuring circuit 275 and the second X side of the second current measuring circuit 276 The analog signal is directly rounded to the first analog/digital conversion circuit 274 and the first-beneficial alpha-digit/digit 14

200933466 Conversion circuit 2747 ^ „ -X side Yuan " '@@@ The first-side X-level current digital signal, the second-side digital current signal, the -γ-side current number... and the -γ-can cancel determination unit 2744 , such noise generated by the circuit or the external environment. 5 is a schematic view of a sensing device of a capacitor according to a second embodiment of the present invention; The operation mode of the second embodiment is the same as that of the first embodiment, except that the first: = another addition of a first sample-and-hold circuit 277 and a second sample-and-hold circuit 278, the first & Only the Du + Ray Weeping, the witnessed sample holding circuit 277 is disposed between the first "η 275 and the analog-to-digital/digital conversion circuit 2740 to simultaneously receive the first X-side current signal or the first signal The side performs the signal sampling and holding operation, " 28, ^, and 4, except for the first X-side switching circuit 8, the noise generated by the switching circuit 29. The holding circuit 278 is disposed in the second current level conversion circuit. Between the gate circuit 276 and the second analog/number. between the pens 2, the second X-side current signal or the :... current signal is simultaneously received for the signal sampling and holding operation, thereby eliminating the X-side switch circuit 25 Or 笫-v Ββ noise. The eye produced by the flying brother-side switch circuit 26 is referred to the sixth figure. The sensing device of the six-figure touch panel is compared with the operation of the second embodiment described above, and the third The embodiment has two control units 2 <74 internal Only the capacitance diagram of the third embodiment of the present invention is used. The third embodiment operates in the same manner, but is the same as the second embodiment. The first, third embodiment uses an analog/digital conversion circuit 15

200933466 2746. Secondly, an electronic switch 279 is additionally added in the third embodiment, and is disposed between a sample hold circuit 277, a second sample hold power, and an analog/digital conversion circuit 2746, according to the received first sense. The signal or the second sensing signal is switched to the first sample hold circuit 277 or the second sample hold circuit 278 to obtain the first X-side current signal and the -Y-side current signal or the second-side current signal and the Y: The side current signal, the electronic switch 279 can be any suitable electronic switch that has been developed in the future or in the future. The analog/digital conversion circuit 2746 receives one of the first X-side analog signal generated by the first-side current signal, the first first-side analog signal generated by the first γ-side current signal, and one of the second X-side current signals. The second X-side analog signal and the second γ-side current signal generate a second γ-side analog signal, and are respectively converted into a first side digital signal, a second X-side digital signal, and a first γ side digital signal. And a second γ side digital signal, and simultaneously inputting the first 电流 side current digital signal, the second 数 side digital current 、, the first γ side current digital signal, and the second Υ side digital current to the position determining unit 2744 is used to solve the noise generated by the circuit or the external environment. Referring to the seventh figure, the seventh figure is a flow chart of the method for eliminating noise in the capacitive touch panel of the present invention. First, a first sensing signal source 21 and a second sensing signal source 2丨2 are provided to generate at least one first sensing signal VS1 and at least one second sensing signal VS2 (S100). The VS 1 is transmitted to the first side of the capacitive touch panel 22 and the first γ 16 200933466 side, and the second sensing signal VS2 is transmitted to the second X side and the second of the capacitive touch panel 22 On the Y side (S 1 02), the first X-side analog current signal is obtained by the first X-side switching circuit 28, and the first X-side analog current signal is obtained from the first X-side current sum, and the first Y-side switching circuit 29 obtains the first Y-side. The first γ side analog current signal and the second X side switch circuit 25 obtain one of the sum of the j 1 and 14 currents on the second X side, the second X side analog current signal and the second γ side switch circuit. 26 obtained the second γ side

a second γ-side analog current signal (S 1 04) for summing the currents of 11 and 12, inputting the first X-side analog current signal and the first γ-side analog current signal to the first current measuring circuit 275 and the second X side The analog current signal and the second Y-side analog current signal are input to the second current measuring circuit 276 (S1 06). Then, the first X-side analog current signal and the first γ-side analogy output by the first current measuring circuit 275 are respectively respectively The current signal is transmitted to the first analog/digital conversion circuit 274 , and the second first analog current signal and the second γ analog current signal output by the second current measurement circuit 276 are transmitted to the second analog/digital conversion circuit 2742. (si〇8). The side analog current signal, the first Y side analog current signal, the second X side analog current signal, and the second γ side analog current signal are divided. J轺 is replaced by the X-side digital current signal, the first γ-side digital current signal, the second X-side digital current signal, and the second γ-side digital position. Finally, the first X-side digital current signal, the _γ-side current signal, the second-side digital current signal, and the first-order signal are simultaneously transmitted to the position--from the position to the position, to the position judgment疋早凡2Μ4 operation to get the X and y coordinates (S丨丨2) of the 171733466 point position. In the prior art, there were different errors in different angular regions on the touchpad because the error would vary with time = time varying. Therefore, the present invention provides a sensing method and a split for the control panel to ensure that the touch is received at the same time. According to the fifth embodiment of the present invention, the sensing device of the present invention includes - ', capacitive touch*3 sensing source, complex 佃, hit 4 multiple digital synchronous circuits And _ position determination unit. The electrical circuit can be electrically connected to the capacitive touch panel. The capacitive touch panel can be generally = contact, and = is not limited. In the present invention, the "better" touchpad is in a substantially rectangular shape, in the h-dry example, the contact point. In another aspect of the present invention, the preferred Shoal is electrically-light-rectangular, and on each side. Power-on reversal = the board can be a general picture, the fifth picture... - consumes electrical contacts, such as the fourth, can be electrically connected to each of the plurality of electrical contacts on the touchpad Each of the connected circuit electrical couplings receives signals from the electrical contacts to generate, contacts, and is divided into wires, circuits, or both... analog signals. The connecting circuit can be selected from the above current measuring circuits, and filters: Electricity: such as 'connecting circuit can: two, for example, electrically connected to the same - connected circuit = circuit or its group, the electrical connection of the line electrically coupled to the same way can be electrically coupled to the same side Two] 8 200933466 corners. In the present invention - the more than a plurality of electrical contacts of the second to: j wire is electrically light, a better example, connected to the electric θ · 疋 - New Zealand circuit. On the other side or the - corner. Therefore, the electrical connection is electrically coupled through the electrical contact. The present invention can also be used to sigma The circuit is located - connected to the two switch or - multi-function, by which to select - pure and complex (four) sexual contact of the number of classes (four) step circuit can be received simultaneously, I =: number to produce - digital signal, each - Number two: When the knife is not asked, it is electrically coupled to the _ 丨 circuit. Several connected circuits are connected by a digital synchronous circuit and a complex and digital synchronous circuit. The open multiplexer is used to select the circuit that can be turned on. Therefore, The digital same circuit has a group of analog signals at the same time in one ja pa ^, and receives another group at the same time during the other period. _ tb $ # Synchronous circuit can be 1 * group gas ". All digits" pulse signal Control, to ensure that the analogy is not received at the same time, but also awkward - in the preferred example, each complete analog signal 疋 each digital synchronization circuit to receive one of them, for S, etc. The entire analog signal can be cut into complex = in the time domain, and the parent is received by a digital synchronization circuit. Each of the 70 analog signals is received and is generated by the digital signal: Day ^• has all by The same proportion of noise caused by the digital synchronization circuit. In other words, the current value corresponding to a type of analog signal is generated by the sum of the digital signals corresponding to the analog signal. Similarly, the signal from an electrical connection 19 200933466 can also be As early as possible, each part is connected by the '-electrical contact 4' circuit, and each aliquot/5 tiger can be cut into a plurality of aliquots. The circuit receives the above. The electrical contact and the connection position determining unit can be different from each other, and the digital synchronous circuit, d, the current value of each before the touchpad is touched. When the touchpad is touched At the same time, the value of each electrical J contact will change, so the current k of the 4^ electrical contact is compared with the touchpad being touched by the front disk φ: flow, and the current at each contact is obtained. The difference:: when the formula is described, the coordinates can be calculated. In the present invention = good! In the example, the current values on the opposite sides can be measured in the -first period, and the current values of the other two opposite sides can be at ten: sensed, and the manner of 4 can be calculated separately - the first in the two-dimensional seat - Dimension coordinates and - Dimension coordinates, assuming that the second one-dimensional coordinates are X and Υ coordinates, respectively, they can be obtained by ^^ and formula: to pass through the following public φ Χ = (ΙΔΧ2-ΙΔΧ1)/( ΙΔΧ1+ ΙΔΧ2) (5) Υ=(ΙΔΥ2-ΙΔΥ1)/( ιδυι+ΙΔΥ2) (6) : Kang Zai, the first period before the capacitive touch panel is touched and the analog signal received simultaneously by the touched two readings 'The difference between the current values IX1 and ΙΧ2 on the two electrical contacts is invited to be the second period, ΛΧ1 and (10). Similarly, according to the analog signal received during the second period of the capacitive:: plate being touched and the fourth period being touched, the currents of the other two electrical 5th time stations can be respectively obtained 20 200933466 The value IY1 and IY2 笙 _ „ with the coffee. Its t, the difference between the fourth and fourth (four) coffee for two periods, and the first:: the second period in the time domain for the continuous brother between the two The fourth period is in two consecutive periods. For t, on the fly, the other is touched before the other touch. 35 The signal will be converted to the current value in the capacitive touch panel by JY2. The difference signal τ position of the mX2 and m discs can be based on the current values do and IX2, respectively, and the output value ΙΔΧ] and the ιΔΧ2 meter are the same. #出一维的的第--维庙 ρ Χ, and according to the current valueΙΥΙ盥^ Calculate the second-dimensional '/ and ΙΔΥ2 in the two-dimensional coordinates. The quasi-coordinate γ. According to a comparative example of the present invention, corresponding to each of the θ-pregnancy and another electrical contact "j" (4) In the other side of the case, the best example of the invention of the sleeves, the phase:: the current of the side is (4) on the side One or more of: the contact of the received, for example - the isoelectric point. The sigma square is coupled; the electrical sensing source at the two corners provides a sense signal to the electrical contact to receive current from the electrical contact. According to the invention, the == way sensing source alternately provides the sense signal, the two sides of the +β I 上 pair on the electrical contact during the first period, and during the second period, therefore: ' The test signal is selectively received--there is a relationship between the solid-state contact and the sensing source, and each of the electrical contacts may be separately connected to the sensing source, or may be plural: The vertical switch and the switch and the sensing source are electrically connected to each other via the same-coupled 0. Therefore, the sensing source can provide a sense signal through the opening 21 200933466. According to this, the sixth according to the present invention The number of connection circuits and digital synchronization circuits: No.: For example, the electrical contacts, the 'per-connection circuit are electrically engaged in people', the four, four and four-digit synchronization circuits are respectively :::Sexual contacts, and signals. The circuit simultaneously receives the analog + and then according to the seventh embodiment of the present invention, the electrical connection of the circuit and the synchronous circuit, and the connection circuit are respectively electrically::;: four:, two pairs and two, each-bit The synchronizing circuits are alternately simultaneously connected by a pair of power = point, and the two digital contacts, the second electrical contacts, the contacts include - the first electrical contacts, and the plurality of connected electrical and electrical properties a contact and a fourth electrical contact and a second electrical contact: the electrical connection is in the first to the second electrical contact and the fourth electrical connection, electrical coupling coupling a first connection circuit, and a third connection connection fourth connection circuit electrically connected to the ::: electrical contact, wherein the electrical contact and the third electrical contact The one of the electrical connection lines up to the f circuit and the second connection circuit is two paths for the two pairs of electrical connection lines: the two connection circuits and the fourth connection circuit comprise - the first electrical contacts, for example The electrical contact point and the first four electrical contacts, and:: electrical contact, - the third electrical connection to the first electrical contact - The connection circuit includes an electrical coupling connection circuit, a second connection circuit electrically coupled to the second electrical connection 22 200933466, a third connection circuit electrically coupled to the third electrical contact, and electrically coupled to a fourth connecting circuit of the fourth electrical contact, wherein the first connecting circuit and the third connecting circuit are a first pair of electrical connecting lines, and the second connecting circuit and the fourth connecting circuit are a second pair of electrical Connect the line. According to the ninth embodiment of the present invention, the number of electrical contacts, the connection circuit and the synchronization circuit are respectively four, two and two, and each connection circuit is electrically coupled to four electrical contacts at the same time. There is one less to ®, and each digital sync circuit receives analog signals by one of the two connected circuits. For example, the electrical contact includes a first electrical contact, a second electrical contact, a third electrical contact, and a fourth electrical contact, and the connecting circuit includes a first connecting circuit. And a second connecting circuit, the first connecting circuit and the second connecting circuit are electrically coupled to the two electrical contacts at the same time, wherein the first connecting circuit is electrically coupled to the first electrical contact and the second electrical The second connection circuit is electrically coupled to the third electrical contact and the fourth electrical contact, and is electrically coupled to the first electrical contact and the fourth electrical contact when the first p-connecting circuit is electrically coupled The second connecting circuit electrically couples the second electrical contact with the third electrical contact. In addition, at least one passive component, such as a resistor, an electrostatic discharge circuit, or the like, may be included between the electrical contact and the capacitive touch panel or between the electrical contacts and the connection circuit. In addition, the sensing signal provided by the sensing source may be an alternating current voltage, and the sensing signal includes a carrier, and the carrier may be a sine wave, 23 200933466 square wave, and the like. During the period of the alternating voltage, the positive half cycle of the alternating current is corresponding to the negative half cycle of the parent current, and the electrical signal is distributed on the positive half cycle carrier and the negative half cycle carrier two. Since the current direction of the positive half cycle carrier and the negative half cycle carrier is reversed, in one of the preferred iT. ^ , target cases of the present invention, the sum of the current values is subtracted from the positive + cycle current value by the negative half cycle. Produced. Those skilled in the relevant art can "infer that the carrier can have a noise of ^:! frequency, so the current signal of the positive half cycle is negative for the half cycle: the flow signal is not fixed, and the current value is sampled. The relevant details have been disclosed in the literature of many prior art, and the details are not described herein. According to the above, the sensing method of the tenth embodiment comprises: providing a sensing signal to be lightly charged. a plurality of electrical contacts to the electric valley type touch panel; selectively electrically (four) combining a plurality of connecting circuits to the plurality of electrical contacts, each of the f 接 接 接 according to the electrical contact The received signal generates a type of analog signal~, and the tool M obtains each of the digital synchronization circuits of the digital synchronization circuits. - Pair-to-ground reception - an analog signal' and based on the received analogy 产生: generating a digital signal; and generating a _ mark according to a plurality of digital signals. Other details in this specific embodiment have been disclosed in the above description, and will not be described again. According to the tenth embodiment of the present invention, as shown in the eighth figure, a two-layer electric valley type touch panel includes an upper touch panel and a lower touch panel 102, and the upper layer touches The control board 1〇1 and the lower layer touch panel have both opposite sides. The two pairs of opposite sides on the upper touch panel (8) and the lower touch panel 1〇2 constitute the above two pairs of opposite On both sides 103, each of the sides 1 () 3 is electrically connected to the plurality of electrical contacts 104. In a preferred embodiment of the invention, each of the sides (8) electrically couples more than three electrical contacts 104. In another preferred embodiment of the present invention, the electrical connection between the opposite sides 103 is electrically connected, and the point 104_ is-corresponding, so that when the sensing source provides a sensing signal to the electrical coupling person - When the electrical contact on the opposite side 1〇3 is 1〇4, the opposite side will be: a parallel electric field 105. Furthermore, the above-mentioned digital synchronizing circuit may include a digital integral crying, and the H-nine digital integrator UQ includes an upper __biter second force 112. In the preferred embodiment of the present invention, the analogy is transferred to the 111 analog-to-signal (current signal) for a plurality of samples and ❹: analog to the number of digits to produce a continuous plurality of digits of current value (1) a continuous number of her = The digital sub-current value lln is added by the adder ιΐ2 plus sub#, ώ# force method period after receiving a plurality of digits: Vlu, and then generating an additive rounding ϊί21, wherein the alternating voltage, k period is the adding period multiple.

According to the above analog signal, you can use 一个 疋 疋 一个 一个 一个 疋 疋 疋 疋 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 Early in the middle. Accordingly, the addition output 1121 corresponding to the same analog signal of 25 200933466 can be added up to the above current value. As described above, the control unit 274 of the capacitive touch panel of the present invention provides two embodiments. The first embodiment is that the control unit 274 includes a first analog/digital conversion circuit 2740 and a second analog/digital conversion circuit 2. The second and the position determining unit 2744' and the second embodiment of the control material 274 include an analog/digital conversion circuit 2476 and a position determining unit 2744.

In addition to the two embodiments mentioned above, the control unit 274 of the capacitive _ panel of the present invention also provides another embodiment. As shown in the tenth figure, the control unit 274 includes a plurality of digital integrator shoulders, at least A switching circuit, a storage circuit 2752 and a standard calculator 2754. Each digital integrator 2748 includes an analog to digital counter 2748 and an add/drop 27482. When the analog-to-digital device 2 measures the analog signal from the source of the signal in the addition cycle, the analogy number (four) 27 pairs of analog signals are successively sampled to convert into a continuous complex number of her bit signals, plus (4) 27482 in the addition cycle. A plurality of consecutive digital signals are added to store the integral value, and the state 2nd circuit 2752 754 calculates a standard (4) h according to the product generated by each adder 27482, and the "knife change $ road 275 () is connected to A plurality of signal sources 'Μ switching circuit 275G determine the number source received by each digital integrator. The source of the signal may be from the corner or side of the capacitive touch panel or the adjacent two corners. H, the digital integral ^ 2748 includes - the first and second digit integrator time switch circuit 2750 such that the first and second digital integrator in the - and - 26, 200933466 two-cycle m-type touch (four) 1 - And the first and the second opposite sides are brothers--the opposite sides of the receiving analog signal period respectively contain at least one addition Tuesday 1:: period and the second f period or f consecutive multiple addition periods, the length of the period may be =!: Contains - plus 』 ' 1/2 clock cycle, 1/4 hour 疋 clock cycle t pulse ' or other proportion of the clock. Therefore, the coordinate calculator of the present invention 275 pulse period) or part (such as 1/2 < 1/4 (10) wT ^ according to the element (such as - the whole time ice ώ 礼 _) _, than the "calculation of the seat stimuli from - The analog signal of Qianyuan is received by the different digital integrators 2748 during the above-period period. For example, the analog signal of the same or one city source is respectively 2748 for each of the different addition periods. The received integral value can be stored in: a few milk 2' so the coordinate calculator 2754 can be based on the integral value of the sub-circuit number source to generate the singularity ^ ^ ^ ^ from the same message coordinates. ... The total value of the Gabga, according to these total values, when the - Zhou Pu contains - the addition of the time, the analogy of the occupation of the dragon received 2748, each analogy dipped 4, double hoarding knife _ mother _ than « plus The total value (ie, the integral value) has different product TM noise. When the analog signal of each signal source is received by all digital integrators 2748 in the same cycle, the summed value of each signal source will have The noise of all digital integrators 2748. In this embodiment, the digits The divider 2748 has at least three embodiments. In the first embodiment, the coordinate calculator 2754 generates the _addition (6) of the same signal source according to at least the integrated value from the same signal source during the period. The current value or part of the current value), the period includes at least - an addition period, 27 200933466 and each integral value corresponds to an addition period, wherein the coordinate calculator 2754 is generated in a first and a second period, respectively. The first and second total values of the plurality of signal sources, the coordinate calculator 2754 subtracts the first summed value from the same signal source with the second summed value to generate a difference, and the coordinate calculator 2754 is The coordinates are calculated based on these differences. In the present invention, the coordinate calculated by the coordinate calculator 2754 may be a one-dimensional coordinate or a two-dimensional coordinate. When the coordinate is a one-dimensional coordinate, the above-mentioned difference includes a first and second difference. And the one-dimensional coordinates are calculated as (first difference - second difference) / (first difference + second difference). ® When the coordinates are two-dimensional coordinates, the difference mentioned above includes a first, second, third and fourth difference, and the first one-dimensional coordinates of the two-dimensional coordinates are calculated as (first Difference + second difference) - (third difference + fourth difference)) / (first difference + second difference + third difference + fourth difference), and one of two-dimensional coordinates The second two-dimensional coordinates are calculated as ((first difference + fourth difference) - (second difference + third difference)) / (first difference + second difference + third difference + Fourth difference). A second embodiment of the digital integrator 2748 is to generate a plurality of first, second, third, and fourth summed values in a first, second, third, and fourth cycles, respectively, and a coordinate calculator 2 7 5 4 subtracting the first summed value from the same source with the third summed value to generate a first difference, and subtracting the second summed value from the same source with the fourth summed value to generate A second difference, then the coordinate calculator 2484 calculates a first one-dimensional coordinate of the two-dimensional coordinate according to the first difference, and calculates a second one-dimensional coordinate of the two-dimensional coordinate according to the second difference. A third embodiment of the digital integrator 2748 is to generate a plurality of first, second, third, and 28th 200933466 in a first, second, third, fourth, fifth, and sixth cycles, respectively. The fifth and sixth total values, the coordinate calculator: 相 are respectively subtracted from the third plus total value and the fifth added total value: Γ! The source and the second difference of the source, and the second from the same signal source The Kadi-differential sum value and the sixth sum total value are subtracted to produce a 1st difference (four) and the fourth coordinate calculator 2754 is based on the /, the fourth difference, and then - the second two-dimensional coordinate -Π:: The first-calculated-first-valued value respectively calculates the first and the second-dimensional coordinate according to the 7-difference and the fourth difference in the sinusoidal sinus. In the preferred embodiment, the above-mentioned _^ example or the sixth period is a -clock cycle, respectively, in the "other example" of the present invention, the above-mentioned -, second, Third, the other part of the X-month is preferably - part of the clock cycle, for example, the time period is only based on the analog signal of the partial clock cycle = period. Change to show or 2D coordinates. In addition, one of the fans is in addition to the 'switching circuit 275 〇 more orderly received by different digital integrators, and the second production: analog signal dependent circuit 2752, then from the same port ~ value to be stored in the memory, for example The calculator can be added separately: the total value can be added to the device - the first and the second number; when the above digital integral, the first digital integrator is in the first and second half cycles respectively ( For example, in the second week, ^; + cycle (such as the first - signal. For example, - the opposite side is a first - phase: = the analogy of the same side switches the Thunder", the second side, in the first cycle, the first half of the side The fresh two-digit integrator is divided into the third side and the third one is shot, and the second circuit is fired. The switching circuit is measured so that the _ 29 200933466 and the second digital integrator receive the flute separately _ # receiving the two sides and the first side In addition, the switching circuit 275 Π - Γ, 2750 is achieved by a plurality of multiplexers, or the multiplexer is matched with the first X-side switch Thai ping switch circuit, the brother-Y side switch circuit, Second X-side switch circuit and second γ-side switch Ray] The gram path is achieved, or only by controlling the first-X-side switching circuit 帛Y-side switching circuit, the second X-contact circuit and the second Y-side switching circuit to achieve the knowledge that the relevant technology can infer the other switching circuit MODE FOR CARRYING OUT THE INVENTION The above lighting mode is an illustration of the present invention, and the present invention includes, but is not limited to, the above-described modes of implementation.

The control unit 2 74 of the capacitive touch panel of the present invention provides a further embodiment. The functional blocks of the control unit 274 are the same as those of the tenth embodiment. The detailed operation of this embodiment is explained as follows. When the analog-to-digital device 2748G receives the portion of the analog signal, the portions of the same analog signal are received by different digital integrators 2 74 8 , and the analog-to-digital device 2748 〇 pairs the consecutive complex numbers The sub-sampling is converted into a continuous plurality of digits. Each of the integrators 2748 simultaneously receives a different type of signal, and an additional adder 27482 adds a plurality of consecutive digital signals to generate a partial integral value, coordinates. The calculator 2754 adds the respective parts of the same analog signal to the total value of the analog signal, and the coordinate calculator 2754 calculates one according to the total value. When the digital integrator 2748 includes the first and second digits. The integral cut circuit 275G causes the first and second digital integrators to be respectively connected to each other on the two sides of the first and second opposite touches: the second and the second opposite sides are Staggered. The storage circuit is used for ^ 30 200933466 total value. In this embodiment, the digital integrator 2748 has at least three embodiments. The first embodiment generates a plurality of first and second summed values in a first and a second addition period, respectively, and the coordinate calculator 2754 will be The first summed value received by the same adder is subtracted from the second summed value to produce a difference, and then the coordinate calculator 2754 calculates the coordinates based on the difference. The coordinate calculated by the coordinate calculator 2754 may be a one-dimensional coordinate or a two-dimensional coordinate. When the coordinate is a one-dimensional coordinate, the difference value mentioned above includes a first and second difference, and one dimension The coordinates are calculated as (first difference - second difference yaw (first difference + second difference). When the coordinates are two-dimensional coordinates, the above mentioned difference includes a first and second The third and fourth differences, the first one-dimensional coordinates of the two-dimensional coordinates are calculated as ((first difference + second difference) - (third difference + fourth difference)) / ( First difference + second difference + third difference + fourth difference), and a second dimensional coordinate of the two-dimensional coordinate is calculated as ((first difference + fourth difference) - (first Two difference + third difference)) / (first difference + second difference + third difference + fourth difference). The second embodiment of the digital integrator 2748 is in a first, The second, third, and fourth addition periods generate a plurality of first, second, third, and fourth summed values, and the coordinate calculator 2 7 5 4 will receive the first summed value and the third plus by the same adder. The total value is subtracted to produce a a difference, and subtracting the second summed value received by the same adder from the fourth summed value to generate a second difference, and then the coordinate calculator 2754 calculates a first two-dimensional coordinate based on the first difference a one-dimensional coordinate, and a second one-dimensional coordinate of the two-dimensional coordinate is calculated according to the second difference. The third embodiment of the digital integrator 2748 is respectively in the first, second, 31 200933466 third, 4. The fifth and sixth addition periods generate a plurality of first, second, third, fourth, fifth, and sixth sum total values, and the coordinate calculator 2754 respectively receives the first summed values received by the same adder. The third sum total value and the fifth sum total value are subtracted to generate a first difference value and a second difference value, and the second sum total value received by the same adder is respectively added to the fourth sum total value and the sixth plus The total value is subtracted to generate a third difference value and a fourth difference value, and then the coordinate calculator 2754 calculates a first and a second two-dimensional coordinate according to the first difference value and the second difference value respectively. One-dimensional coordinates, and the first difference is calculated according to the second difference and the fourth difference respectively A second one-dimensional coordinate with the second two-dimensional coordinate. The present invention has been described above by way of specific embodiments, and those skilled in the art can derive other possible embodiments by the principles of the embodiments. The exemplified embodiments are all within the spirit of the invention, and the actual scope of the invention is defined by the scope of the appended claims. In addition, the interpretation of the scope of the invention claims on the capacitive touch panel The X and Y directions can be adjusted. [Simplified illustration] The first figure is an exploded view of a conventional capacitive touch panel; the second figure is a system for determining the position of the capacitive touch panel. The third figure is a schematic diagram of a sensing device of the capacitive touch panel of the present invention; the fourth figure is a schematic diagram of a sensing device of the capacitive touch panel according to the first embodiment of the present invention; A schematic diagram of a sensing device of a capacitive touch panel according to a second embodiment of the present invention; 32 200933466 FIG. 6 is a schematic diagram of a sensing device of a capacitive touch panel according to a third embodiment of the present invention; 7 is a flow chart of the method for eliminating noise in the capacitive touch panel of the present invention; the eighth and eighth panels are schematic views of the two-layer capacitive touch panel of the present invention; and the ninth figure is the digital integral of the present invention. The functional block diagram of the device; and the tenth figure is a functional block diagram of the control unit of the present invention. [Main component symbol description]

Capacitive touch panel 10 Upper touch panel 101 Lower touch panel 102 Opposite sides 103 Electrical contacts 104 Parallel electric field 105 Transparent substrate 11 Digital integrator 110 Analog to digital device 111 Digital current value 1111 Adder 112 Addition output 1121 conductive film 12 electrode pattern 13 insulating hard coating 14 33 200933466

Current measurement circuit 15 filter circuit 16 integration circuit 17 controller 18 analog/digital conversion circuit 180 ' 2720 position determination unit 182 , 2722 sensing device 20 sensing source 21 first sensing signal source 210 second sensing signal source 212 Capacitive touch panel 22 Work area 220 X side switch circuit 23 Y side switch circuit 24 Second X side switch circuit 25 Second γ side switch circuit 26 Control circuit 27 First current measurement circuit 270 Second current measurement circuit 272 Control unit 274 First analog/digital conversion circuit 2740 Second analog/digital conversion circuit 2742 Position determination unit 2744 34 200933466

X coordinate determiner 27440 Y coordinate determiner 27442 Analog/digital conversion circuit 2746 Digital integrator 2748 Analog to digital comparator 27480 Adder 27482 Switching circuit 2750 Storage circuit 2752 Coordinate calculator 2754 First sample hold circuit 276 Second sample hold circuit 278 Electronic switch 279 first X side switch circuit 28 first Y side switch circuit 29 contact P 35

Claims (1)

200933466 X. Patent Application Range: 1. A sensing device for a capacitive touch panel, the capacitive touch panel is substantially rectangular and has a transparent substrate formed on the transparent substrate and located on the transparent substrate. The sensing layer has a transparent conductive property and has a first X side, a second X side, a first Y side and a second Y side. The sensing device comprises: a first X side switching circuit Electrically connected to the first X side; a second X side switch circuit electrically connected to the second X side; a first Y side switch circuit electrically connected to the first Y side; Φ The second Y-side switching circuit is electrically connected to the second Y side; a sensing source provides a sensing signal to the first X-side switching circuit, the second X-side switching circuit, and the first Y-side a switching circuit and the second side switching circuit; a control circuit receiving a sensing signal generated by the sensing source, and comprising: a first current measuring circuit for receiving the first X-side switching circuit Generating one of the first X-side current signals or the first Y-side switch One of the first Y-side current signals generated by the circuit; a second current measuring circuit for receiving a second X-side current signal generated by the second X-side switching circuit or the second Y-side switching circuit a second Y-side current signal is generated; a control unit, the control unit includes: a first analog/digital conversion circuit for generating a first X-side analog signal generated by the first X-side current signal Converting into a first X-side digital signal, or one of the first Y-side analog signals generated by the first Y-side current signal is converted into a first Y-side digital signal; 36 200933466 a second analog/digital conversion circuit, (4) The first X-side analog signal is converted into a 2-side current signal number, or one of the second γ-side current signals is generated, the first side digital signal is converted into a second-digit digital signal; a position determining unit, a power and the second analog/digital conversion circuit, and a face center digital conversion circuit and a standard determiner, and simultaneously receiving the first-to-X-side digital current signals, respectively : Bit minus bit signal And after the 筮_ Λ leather-X-side current number, the first-point::-bit current: the current is calculated to the position of the 疋 contact, and the coordinate determinator 'receives the first:' and the The second digital current signal of the second side will respectively flow the digital signal and the bit signal and the number of currents on the second side of the digital side of the second side of the "Hungarian-contact position - γ:, the appropriate operation such as the patent application The control circuit further includes: a practice device, wherein the first sample-and-hold circuit is disposed at the first power or the first to simultaneously receive the first: current signal for performing Signal sampling first-sampling and holding circuit, which is set up between the analog analog/digital conversion circuits, the ______κ measurement circuit and the first X-side current signal; and the * road system is set in the first band, + ; ': page ratio / digital conversion between the I n rigid circuit and the second or _ Wu circuit to simultaneously receive the first -v 苐 γ γ side 罘 ~ X side current signal. Wind current signal 唬u for signal sampling #拉^ A, the scope of patents! Sampling and keeping action. The sensing device is configured to receive a first sensing signal and a second sensing signal, respectively, to generate a first sensing signal and a second sensing signal, respectively. The X coordinate determiner turns on the first X-side switch circuit and the second X-side switch circuit according to the received first sensing signal, and the Y coordinate determiner is based on the received second sensing signal The first Y-side switching circuit and the second Y-side switching circuit are turned on. 4. The sensing device of the capacitive touch panel of claim 1, wherein the capacitive touch panel further comprises a substantially rectangular working area, and the contact acts on the screen area. Inside. The sensing device of the capacitive touch panel has a rectangular shape and has a transparent substrate formed in the same shape as the transparent substrate and having transparent conductive properties on the transparent substrate. a sensing layer having a first X side, a second X side, a first Y side, and a second Y side, the sensing device comprising: a first X-side switching circuit electrically connected to the a first X-side switch circuit electrically connected to the second X side; a first Y-side switch circuit electrically connected to the first Y side; and a second Y-side switch circuit Electrically connected to the second Y side; a sensing source comprising a first sensing signal source and a second sensing signal source; and a control circuit for receiving the first sensing signal source a first sensing signal and a second sensing signal generated by the second sensing signal source, and comprising: a first current measuring circuit for receiving one of the first X-side switching circuits a first X-side current signal or a first Y-side current generated by the first Y-side switching circuit a second current measuring circuit for receiving a second side current signal generated by the second X-side switching circuit or a second side current generated by the second γ-side switching circuit The first sampling and holding circuit is electrically connected to the first current measuring circuit to simultaneously receive the first side current signal or the first side current signal for signal sampling and holding operation, thereby eliminating the first The X-side switching circuit or the noise generated by the first γ-side switching circuit; the second sampling and holding circuit is disposed between the first current measuring circuit and the Φ-analog/digital conversion circuit to simultaneously receive the a second X-side current signal or the second X-side current signal for signal sampling and holding operation, thereby eliminating noise generated by the second X-side switching circuit or the second side switching circuit; electronic switching switch, electrical Connected to the first sample and hold circuit and the second sample and hold circuit 'according to the received first sensed signal or the second sense'. The iu tiger switches to the first sample hold circuit or the second sample hold circuit to obtain the first X-side current signal and the first γ-side current signal о or the second X-side current signal and the third γ a side current signal; a control unit, the control unit comprising: a analog/digital conversion circuit electrically connected to the electronic switch to receive the first side analogy generated by the first X side current signal The signal, the first gamma side current signal generates one of the first gamma side analog signal, the second X side current signal generates one of the second side 頬 analog signal and the second gamma side current signal The second gamma side analog signal is respectively converted into a first X side digital signal, a second 39 200933466 X side digital signal, a first Y side digital signal and a second Y side digital signal; and a position determining unit, Electrically connected to the analog/digital conversion circuit, and comprising: an X coordinate determiner, determining an X of a contact position based on the first X-side current digital signal and the second X-side digital current signal coordinate; The coordinate determining device determines a coordinate of a position of the contact according to the first side current digital signal and the second side digital current signal. The sensing method of the capacitive touch panel, the capacitive touch panel has a substantially rectangular shape, and has a transparent substrate formed in the same shape as the transparent substrate and having a transparent conductive property on the transparent substrate. The method of measuring a layer has a first X side, a second X side, a first side and a second side. The method for eliminating noise includes the following steps: providing a first sensing signal source and a second Sensing the signal source; respectively transmitting the first sensing signal and the second sensing signal to the first X side, the first side, the third side, and the second side; obtaining a first X side analogy a current signal, a first gamma side analog current signal, a second X side analog current signal, and a second side analog current signal; respectively converting the first X side analog current signal, the first side analog current signal, The second X-side analog current signal and the second side analog current signal to a first X-side digital current signal, a first first-side digital current signal, a second X-side digital current signal, and a second side Digital current signal; and 40 200933466 X-side digital power The stream signal, the first _γ side digital current signal and the second γ side digital current signal are calculated to obtain an χ and a mark of a contact position. The method of recording the gaze, further includes ❹ or the first, the analog current signal is input to a first electric "1 circuit and the first: χ _ current signal or the second analog current signal to a second current measuring circuit Step 8. The method of the capacitive gamma of the method described in Shen _6, further includes the first-side analog current signal or the second: = number output by the ==== quantity circuit Transmitting to the first analog/digital conversion circuit, and outputting the second side analog current output by the measurement circuit to the second: the side ship current signal is transmitted to the second analog/digital conversion circuit operator. The patent source (4) 6 of the f capacitive touch panel _ square / brother = two sensing signal source is the same, and the first and second her ^ ^ patent _ 6 described capacitance _ panel sensing = The device further includes a substantially rectangular working area, and the contact acts on: a capacitive touch sensing device, including: a sense source, the sensing signal source provides, and the sensing signal is powered. Lightly coupled to - a plurality of electrical contacts of the capacitive touch panel. A plurality of connected circuits, each connected to each other At least one of the fractional contacts; ^ to the plurality of electrical 41 200933466 a plurality of digital synchronous circuits, each of the digital synchronous circuits respectively receiving a ratio signal from the plurality of connected circuits to generate a digital signal, and all The digital synchronization circuit simultaneously receives the analog signal; and a position determining unit, the instrument determining unit 70 calculates a landmark according to the plurality of digital signals. 12. The sensing device of the electric valley touch panel according to claim π, wherein the plurality of electrical contacts, the plurality of connecting circuits of the brigade, and the plurality of synchronizing circuits are respectively four Four or four, each of the connecting circuits is electrically coupled to an electrical contact, and each of the digital synchronous pens receives the analog signal simultaneously by a connecting circuit. The sensing device of the capacitive touch panel of claim n, wherein the number f of the plurality of synchronization circuits is smaller than the number of the plurality of connection circuits, and each of the digital synchronization circuits is respectively from two The above connection circuit receives the analog signal, wherein each of the digital synchronization circuits alternately receives the analog signal by the at least two of the connection circuits. The capacitive touch panel of claim 11 is disposed, wherein the number of the plurality of electrical contacts, the plurality of connecting circuits, and the plurality of synchronous circuits are four or two The two 'each-connected circuits are respectively electrically = combined to a small electrical turn, and the rain minus (four) step circuit is divided into the same time. (4) A pair of circuits in the circuit receives the analog signal. Inverse 15. The capacitor is set as described in item 14 of the patent application, and the electrical contact is made with the -phase electrical contact, and the complex electrical connection 2 includes J 42 200933466 • is coupled to the first electrical contact Incorporating the first electrical contact: a 'sexual contact'-first-connected circuit, a circuit electrically coupled to the first-side four-electrical contact, and electrically coupled to the ... A first connection circuit of the point, wherein the contact point and the third electrical connection 2 are electrically connected to the third connection circuit 舆 41! the other of the two pairs of electrical connection lines. ...Haidi four built-in circuit is φ 16. Such as Shen Hao straight ^, complex: around the fourth] the capacitance described in ... ... • Several electrical contacts include a second: touch panel sensing device, 1 l l electrical thin and - ^ electric material H-contact 2 second in the first sexual multi-job connection electrical contact 1 ± white "- connection circuit, electricity 3 to connect the circuit, Connected to the circuit, electrically coupled to the second electrical circuit, wherein the first light is coupled to the fourth electrical contact, the third connecting circuit and the third connected circuit, the connection circuit, And the second connecting circuit and the second connecting circuit are the first electrical connecting line 17: %: the 妾 circuit is the second pair of electrical connections, and the capacitive touch switching is performed according to the item (10). Two and two, each connected to the circuit eight synchronous circuits at the same time:: at least '' in the solid-state contacts, and every 1: do not interleaved simultaneously with the electric core application circuit - receive the analogy ,. The plurality of rice synchronizing circuits respectively comprise the plurality of electro-optical Γ17 capacitive touch panels with safety contacts including: a first contact, a Wei, a younger brother, an electrical contact, and a 43rd The electrical contact and the fourth and fourth electrical contacts and the fourth φ road r the second fascia connection circuit comprise - the second circuit is light, respectively, the electrical and the two electrical connection circuit and the The second connection circuit is electrically connected to the first contact point 舆", wherein when the first connection electrical connection circuit is coupled to the third electrical contact v electrical contact, the second connection is connected __-Electric ': _ point' and when the first -= circuit electrically switches the second point and the fourth electrical contact, the first point of the patent application The third electrical contact comprises: a sensing device of the first capacitive touch panel, wherein the two electrical contacts and the fourth electrical contact are electrically connected, a second electrical contact, the first connecting circuit and the first connecting circuit and the plurality of connecting circuits comprise a second φ circuit alternately and electrically respectively, and the connecting circuit and the second connecting circuit are electrically Cooperating with the first electrical contact, wherein when the first connection is an electrical contact, and when the first connection: the second connection circuit is electrically coupled to the first day " the second connection The electrical circuit of the circuit is electrically connected to the second electrical humiliation. For example, the patented electrical contact is used. Each digital synchronous circuit is based on the _day ± capacitive touch panel throwing device, wherein Receiving the analog signal. The camera number is simultaneously connected to the plurality of connection circuits 2i. As claimed in the patent application, the connection circuit includes the following sensing device of the capacitive touch panel, Circuit, sample and maintain electricity: and - or a combination thereof: wire, filter circuit, integral 22 · as claimed in the patent range... The position determination unit item of the electric valley touch panel is sensed, According to the change of the plurality of digital signals, the coordinates are calculated, 44 200933466 The change amount of the plurality of digital cities _capacitance and control time change. Before the break and the touched 23t application for the special 11th Salty, valley-type touchpad In the form of a rectangle, the dragon - 'δ ' is the device, which is electrically connected to the side of the capacitive touch panel. Λ d a d-contact is electrically connected. 24. As described in item n of the patent application. Capacitive touch The capacitive touch panel is generally a moment, g / device, which is coupled to the four corners of the capacitive touch panel. κ plurality of electrical contacts are electrically 25 · as claimed Each of the digits described in item u of the range - time division - the thief set, which makes 2: ι; special::: the sense of the capacitive touch panel described in item 11, 忒 / 丄铩According to the following formula, ·· , τ p(ww(WlAY2), where =lAXi)/( ίώχ~^ 10 . and a second dimension coordinate, where the disk is a first-dimensional coordinate touch of the coordinate 77 (four) According to the analog signal received by the shop control panel at the same time, 'and' and ^ are _ in the control panel, the current difference of the analog signal received at the same time 27·^ patent _ nth item The sensing device of the capacitive touch panel comprises a digital integrator, the digital integrating circuit comprising: / number ", the ship key __ ratio The signal is taken in multiple consecutive times and the analog to digital digits are generated to generate a continuous plurality of digital sub-current values, and 45 200933466 an adder 28. The accumulator 28, such as the patent application, 27th work, σ忒, a plurality of digital current values . The sensing touch panel of the capacitive touch panel of each of the analog signals of the analog signal is received by the relay digital receiver. The digital signal is integrated by the plurality of digits in the analog signal, and the adder corresponding to the analog signal output is compared with the digital signal of the analog signal output. The addition output is summed up. φ The capacitor ^ touch panel includes the sensing device of the capacitive (four) panel of ", 4", wherein the upper layer of the capacitive touch: the electric touch panel 舆 - the lower layer capacitive touch opposite sides - 苐Two: Dialogue: 'The subordinate capacitive touch panels respectively include a first side coupled to the first and the second ends' and the plurality of electrical contacts are electrically three. For example, the two sides of the patent application scope::. The sensing device of the first opposite two-sided capacitive touch panel, wherein the electrical contacts on both sides are the same, and the second opposing electric field. Correspondingly, by receiving the sensing signal, the sensing method of the two capacitive touch panels is provided in parallel, including: the electric material is combined with the _capacitive touch, and the plurality of electric axes are selectively combined. Electrical contact; part; at least - selectively electrically coupled part of the circuit to the number of electrical contacts; 5 / circuit to the plurality of connected circuits at least - respectively for each connected circuit domain No.; electrical contact generation of the pot mouth - analog signal 46 200933466 cutters each of the digital sync circuits in a plurality of digital sync circuits simultaneously divide the plurality of connected circuits - receive the age signal to generate - digital signals; And calculating a coordinate based on the plurality of digital signals. 32. The sensing method of the capacitive touch panel as described in claim 31, the number of the light synchronization circuits is smaller than the number of the plurality of connection circuits 曰^=the digital synchronization circuit separately from the two or more connection circuits Connected to (4) analogy ^ mother /, middle mother - a digital synchronization circuit intersection Wei points ° dragon ' ❿ ❹ connected circuit - receiving the analogy. 〗 〖By pulling on two Μ 33 33. If the application of the paste range Μ 之 之 之 该 该 该 该 该 该 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复 复And two, each one:: a plurality of electrical contacts of a plurality of synchronous circuits, and the two numbers of simple steps f respectively, the electrical materials are combined with at least one of the circuits to receive the age of the tool At the same time, the two electrical connections include a sensing method of the first electric touch panel, and the two electrical contacts are one point, one first. Two electrical connections ± human, fourth electrical contact, and h electrical change contact, - ° ° in the first electrical contact plate the first:, a plurality of connected circuits comprising electrical coupling to read second啼,, X, the first of the electrical contacts, the _ far from the electrical _ _; the read contact and the first circuit, the circuit... the electrical contact and the first connection circuit, the two slaves and the electrical a third connection electric power that is rotated on the second electrical contact, wherein the first connection circuit 'and the fourth electrical connection - the fourth connection line - and the cough second connection Hair is electrically connected to a third electrical connection to Hai t r the electrical path of the other two pairs of springs. Call the brother four connection circuit for the two pairs of 47 200933466 35 · If you apply for the details of the 33rd electrical contact package; the second capacitive touch panel method of sensing, send two electrical contacts and - The fourth electrical connection: point, - the second electrical contact, two: the combination of the first ', 'the number of money connected to the wide contact of the two connected = circuit, electric material: ^ connection The circuit, the q-channel, the electric material are combined in the discussion of the electric = electric, the second electric M and the electric coupling in the 兮筮 ^ - the home contact - 坌❹ where the first - surname - electrical contact - the third, and the third circuit and the third connection circuit are - the first: the connection circuit, the line. 4 two connection circuit and the fourth connection circuit is = electric connection line 3 6. If the application for the special issue of the mine is the first pair of electrical connection, the capacitance of the capacitive touch surface pole is ", respectively, two One: the circuit and the plurality of synchronous powers: the neutral light and the four electrical connections are %iy solid, and the number of the mother-connected circuits are respectively staggered by the two connected wires, and each digit is the same: Electricity: Time 37. If you apply for a special, around $, 6 - receive _ than the signal. The road separately the multiple electrical contacts: 1 household = capacitive touch surface is ~ ~ Γ and - ~ contacts , a first, a contact, - the first - phase power ~ - the second to connect 1 ~ the complex query connection circuit contains one: the road father to the ground at the same time:, 戎 first - connected circuit and reach the enemy% Έ〗 Contact fish 呀 potential D Hai second connection = road power • In, electrical contact to connect a circuit electrical t-contact and the younger brother ~ interesting to the second electrical contact and the electrical contact At the time, the first, and the mourning two electrical contacts. 48 200933466 38. If the patent application scope 帛% of the items, the plurality of electrical contacts include a capacitive touch surface Sensing method, three electric fourth contact, point, - second electrical contact,: first connecting circuit 舆 - second connecting circuit: the plurality of connecting circuits include - the second alternating current phase , _1 = 1 is connected to the second connection circuit and the second connection circuit is electrically coupled to the first electrical contact, = point, wherein when the first is connected to the second electrical contact, and when the first: two connection Circuit electric (four) combined with each digital synchronous circuit is based on::::: control: the sensing method of the board, one of which receives the analog tfi number. 5~5~ by the number of connected circuits 40. The capacitor of the item 31 includes the following group - or a combination thereof; and vice versa, wherein the circuit is sampled and maintained. ~, ° 'wave circuit, integration circuit, 41. The connection circuit samples and maintains the circuit. The wave circuit, the integration circuit, and the sensing method of the capacitive touch panel according to Item 31, wherein the / standing determination table is based on the variation of the plurality of digital signals Calculate a 俨3: Shen: Capacitive type described in item 31 of the patent scope The sensing method of the control panel, wherein each of the various types of touch panels is substantially a rectangular type, wherein the plurality of electrical contacts are electrically connected to the four corners of the capacitive touch panel. For example, the capacitors described in Item 31 of the Patent Application Park are the same as the eight-digit synchronous circuit. The sensing method of the panel, in which the analog signal, each analog signal:: is: several connected circuits - receiving the The step-by-step circuit receives respectively, and the m(10) part is respectively produced by the plurality of digits and the capacitive touch of the seat and the standard system according to the following formula. ίΔΥ]+ΐΔγ7) t χ ^ γ ;2'ίΔΧ,)/( ^ ❿ 第二 a second dimension coordinate, , , ^ coordinate - the first dimension of the coordinate touch before and when touched is based on The touch panel is valued, and the difference between the analog signals h and h received by τ & 2 is based on the analog signal h and & received in the % of the touch before the touch panel is touched. Current difference. 46.==The sensing method of the capacitive touch panel described in Item 31 of Liganwei, the neutral female step circuit comprises a digital integrator, and the digital integrating circuit comprises: a parallel-wide, the analog-to-digital device The analog signal is sampled successively for a plurality of times, and the sub-signal is rotated to generate a continuous plurality of digital current values; and the adder accumulates the plurality of digital current values. 47t is claimed in claim 46. The sensing method of the capacitive touch panel, in the basin: the plurality of portions of the analog signal are sequentially received by the analogy of the plurality of digital integrators, and the addition of the plurality of digital integration circuits is caused by a plurality of addition outputs of the analog signal, wherein the digital signal of the analog signal is generated by the plurality of additive outputs corresponding to the analog signal. 48. The capacitive touch panel of claim 31 Sensing method, wherein 50 200933466 the capacitive touch panel comprises an upper capacitive touch panel and a lower capacitive touch panel, the upper capacitive touch panel and the lower capacitor The touch panels respectively include a first opposite side and a second opposite side, and the plurality of electrical contacts are electrically coupled to the first and second opposite sides. The sensing method of the capacitive touch panel of claim 31, wherein the first opposite two sides of the electrical contacts are one-to-one correspondence, and the second opposite two sides of the electrical contacts are one-to-one correspondence The parallel electric field is provided by receiving the sensing signal. The control unit of the capacitive touch panel includes: a plurality of digital integrators, each of which includes: an analog-to-digital device, when When the analog-to-digital device receives a analog signal from a signal source in an addition cycle, the analog-to-digital device samples the analog signal consecutively for a plurality of consecutive digital signals; an adder, the adder And adding the consecutive plurality of digital signals in the addition period to generate an integral value; and a calibration calculator, the coordinate calculator is calculated according to the integral stomach value generated by each adder The control unit of the capacitive touch panel of claim 50, wherein the coordinate calculator generates the same signal source according to at least one integrated value from the same signal source during a period The summed value 'the period includes at least one addition period, wherein the coordinate calculator generates first and second summed values from a plurality of signal sources in a first and a second period, respectively, the coordinate calculator The first summed value from the same source is subtracted from the second summed value to generate a difference, and the coordinate 51 200933466 calculator calculates the coordinate based on the differences. The control unit of the capacitive touch panel of claim 51, wherein the coordinate is a dimensional coordinate, and the difference comprises a first difference and a second difference, wherein the one-dimensional coordinate is calculated by (first difference - second difference) / (first difference + second difference). The control unit of the capacitive touch panel of claim 51, wherein the coordinate system is a two-dimensional coordinate, and the difference comprises a first, second, third and fourth difference , the calculation method of a first one-dimensional coordinate of the two-dimensional coordinate is ((# a difference + second difference) - (third difference + fourth difference)) / (first difference) + second difference + third difference + fourth difference), and a second dimensional coordinate of the two-dimensional coordinate is calculated as ((first difference + fourth difference) - (second difference) + third difference)) / (first difference + second difference + third difference + fourth difference). 54. The control unit of the capacitive touch panel of claim 50, wherein the coordinate calculator generates a plus of the same signal source according to at least one integrated value from the same signal source during a period The total value 'the period includes at least one addition period, wherein the digital integrators generate a plurality of first, second, third, and fourth additions in the first, second, third, and fourth weeks, respectively. a total value, the coordinate calculator subtracts the first summed value from the same source with the third summed value to generate a first difference, and the second summed value from the same source The fourth sum total value is subtracted to generate a second difference value, and the coordinate calculator calculates a first one-dimensional coordinate of the two-dimensional coordinate according to the first difference values, and calculates according to the second difference values. A second one-dimensional coordinate of the two-dimensional coordinate. 55. The control unit of the capacitive touch panel of claim 50, wherein 52 200933466 the coordinate calculator generates the same signal source according to at least one integrated value from the same signal source during a period Adding a total value, the period includes at least one addition period, wherein the digital integrators generate a plurality of first and second, respectively, in a first, second, third, fourth, fifth, and sixth periods Third, fourth, fifth and sixth sum total values, the coordinate calculator subtracts the first summed value from the same signal source with the third summed value and the fifth summed value respectively to generate a first difference and a second difference, and subtracting the second summed value from the same signal source with the fourth summed value and the sixth summed value respectively to generate a third difference a fourth difference value, the coordinate 计算器 calculator calculates a first one-dimensional coordinate of the first and second two-dimensional coordinates according to the first difference value and the second difference value, and according to the first The second difference and the fourth difference respectively calculate the first and the second A second one-dimensional coordinate of the dimension. 56. The control unit of the capacitive touch panel of claim 50, wherein the signal source is from one of the following groups: a corner, a side or an adjacent two corners of a capacitive touch panel . 57. The control unit of the capacitive touch panel of claim 50, wherein the period comprises a plurality of consecutive addition periods, and the analog addition signals from the same signal source have different addition periods during the period. Received by different digital integrators. 58. The control unit of the capacitive touch panel of claim 50, wherein the addition period is selected from one of the group consisting of: a 1/2 clock period or a 1/4 clock period. 59. The control unit of the capacitive touch panel of claim 50, further comprising at least one switching circuit connected to the plurality of signal sources, and the switching circuit determines that each digital integrator receives The signal source of this analog signal. 53 200933466 60. Capacitor as described in claim 5, wherein the digital integrators are respectively in the control unit of the m, wherein one or both sides of the first and second opposite capacitive touch panels are staggered The signal, the first - opposite the second 61. The capacitive touch as described in claim 5G of the patent scope contains a storage circuit, and the storage circuit stores the same. (4) Unit, and further package 62. A control panel for a capacitive touch panel includes: φ 稷 number = digital integrator, each digital integrator comprises: : a rotary digitizer 'When the analog-to-digital receiver receives When the signal is divided into a type of signal, the analog-to-digital device samples the plurality of consecutive times to turn into a plurality of consecutive digital signals, and each of the integrators simultaneously receives a part of the different analog signals; Adding French's adder adds the successive plurality of digital signals to generate an integral value of the part; and a standard calculator 'the coordinate calculator respectively smashes the parts of the same analog signal~ As a total value of the analog signal, the coordinate calculator calculates a target based on the added value of I. • The control unit of the capacitive touch panel as described in Section 62 of the patent, wherein the parts of the analogy are received by different digital integrators. The control unit of the capacitive touch panel described in item 62 of the monthly patent, wherein the product "^ system generates a plurality of _th---the total value in the -first and second addition cycles respectively The value is equal to the second plus she subtracts the first plus total heart value received by the same adder to produce a difference, and the coordinate calculator calculates the coordinate based on the difference 54 200933466 value. The control unit of the capacitive touch panel of claim 64, wherein the coordinate system is a one-dimensional coordinate, and the difference values comprise a first and second difference, the one-dimensional coordinate The calculation is (first difference - second difference) / (first difference + second difference). 66. The control unit of the capacitive touch panel of claim 64, wherein the coordinate system is a two-dimensional coordinate, and the difference comprises a first, second, third and fourth difference The first one-dimensional coordinate of the two-dimensional coordinate is calculated as ((first difference © + second difference) - (third difference + fourth difference)) / (first difference + first Two difference + third difference + fourth difference), and a second dimensional coordinate of the two-dimensional coordinate is calculated as ((first difference + fourth difference) - (second difference + first) Three differences)) / (first difference + second difference + third difference + fourth difference). 67. The control unit of the capacitive touch panel of claim 62, wherein the digital integrators generate a plurality of firsts in a first, second, third, and fourth addition periods, respectively. Second, third, and fourth summed values, the coordinate calculator subtracts the first summed value received by the same adder from the third summed value to produce a first ® difference, and will be added by the same The second summed value received by the device is subtracted from the fourth summed value to generate a second difference, and the coordinate calculator calculates a first one-dimensional coordinate of the two-dimensional coordinate according to the first difference values. And calculating a second one-dimensional coordinate of the two-dimensional coordinate according to the second differences. 68. The control unit of the capacitive touch panel of claim 62, wherein the digital integrators are in a first, second, third, fourth, fifth, and sixth addition periods, respectively. Generating a plurality of first, second, third, fourth, fifth, and sixth plus 55 200933466 total values, the coordinate calculator respectively receiving the first summed value received by the same adder and the third summed value And subtracting the fifth sum total value to generate a first difference value and a second difference value, and the second sum total value received by the same adder and the fourth sum total value and the sixth sum total The values are subtracted to generate a third difference value and a fourth difference value, and the coordinate calculator calculates a first and a second two-dimensional coordinate according to the first difference value and the second difference value respectively. And dimension coordinates, and calculating a second one-dimensional coordinate of the first and second two-dimensional coordinates according to the second difference and the fourth difference. 69. The control unit of the capacitive touch panel of claim 62, wherein the control further comprises at least one switching circuit, the digital integrator comprising a first and second digits. an integrator, the switching The circuit causes the first and second digital integrators to receive the analog signal from a first and second opposite sides of a capacitive touch panel in a first period and a second period, the first and the second relative The two sides are staggered. 70. The control unit of the capacitive touch panel of claim 62, further comprising a storage circuit, wherein the storage circuit stores the summed values. 56