CN102566847A - Resistive touch device - Google Patents
Resistive touch device Download PDFInfo
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- CN102566847A CN102566847A CN2011101893895A CN201110189389A CN102566847A CN 102566847 A CN102566847 A CN 102566847A CN 2011101893895 A CN2011101893895 A CN 2011101893895A CN 201110189389 A CN201110189389 A CN 201110189389A CN 102566847 A CN102566847 A CN 102566847A
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Abstract
The invention discloses a resistance-type touch device which comprises a first resistance sheet and a second resistance sheet, wherein the second resistance sheet is arranged close to the first resistance sheet, so that the pressure applied to a first touch point and a second touch point on the first resistance sheet causes the current to be generated between the first resistance sheet and the second resistance sheet. The resistive touch device further comprises a control unit, wherein the control unit is coupled to the first terminal and the second terminal, is used for measuring a first resistance value between the first terminal and the second terminal, and is used for calculating a distance between the first touch point and the second touch point. In addition, a method for calculating the distance between the first touch point and the second touch point on the resistor sheet is also disclosed.
Description
Technical field
The invention relates to a kind of electric resistance touch-control device, and particularly about a kind of method and apparatus in order to detecting two touch point positions on the surface of resistor type touch control plate.
Background technology
Generally speaking, the electric resistance touch-control device comprises two resistor discs (resistive sheet), is coated with resistance material on it, and both are separated by air or little point (microdot) thin layer.Outer resistor disc (being also referred to as first resistor disc) can be made by resilient material, and can do the entity contact by user's finger or pen type (stylus-type) instrument, and internal layer resistor disc (being also referred to as second resistor disc) then can be made by hard material.When first resistor disc was touched, it mainly was to be pressed towards second resistor disc, thereby caused the contact of two resistor discs.
The electric resistance touch-control device can be used for resistance touch screen, or can let the user through resistor disc place part in the assembly is touched any assembly of carrying out start.
With present common four lines (four-wire) electric resistance touch-control device; It mainly is to operate through the position of decision touch points; Wherein the X coordinate of position is to extract the measurement of doing to a resistor disc, and the Y coordinate of position then is to extract the measurement of doing to another resistor disc.
Summary of the invention
The present invention is the process flow diagram with reference to the described method of the embodiment of the invention, and (or) calcspar of device (or system) and computer program narrates as follows.What be able to know is; Process flow diagram and (or) each square and combination thereof in the calcspar; All can realize by computer program instructions, but and these computer program instructions can offer the processor in general computing machine, special computers or other program processing apparatus, to produce relevant machine language; But make via the performed instruction of processor in computing machine or other program processing apparatus, can produce be used for realization flow figure and (or) mode of concrete function (or action) in the calcspar.
Aforementioned calculation machine programmed instruction also can be stored in the computer readable medium; But but and this computer readable medium vectoring computer or other program processing apparatus with special mode start; Make the instruction in the computer readable medium produce the manufacturing thing; It comprises the means that give an order, and this means realization flow figure that gives an order and (or) concrete function (or action) in the calcspar.
But computer program instructions also can add in borne computer or other program processing apparatus; To produce a series of operation steps; But and be executed in computing machine or other program processing apparatus; And then produce a computer realization program, but make performed instruction in computing machine or other program processing apparatus, can provide be used for realization flow figure and (or) program of concrete function (or action) in the calcspar.
In the present invention; Wherein one of problem of desire solution promptly is that two touch points positions on the electric resistance touch-control panel in electronics or the operand spare are detected; And the step of above-mentioned detecting two touch points positions; Then for example can carry out during with two fingers or pen-type tool, and these starts can be: control the image that is shown on the device, select menu option, acquisition object, target rotation, amplification object size in the user to the start of electric resistance touch-control device ... Or the like.
In the present invention; A technical scheme that addresses the above problem promptly be calculate between last two touch points of X axle (DX) distance and (or) distance between last two touch points of Y axle (DY); And this electric resistance touch-control device can be embedded in the electronic installation; As the part of Touch Screen or user interface, let the user can be through for example operating with finger touches.
Technique scheme comprises a kind of method and a kind of electric resistance touch-control device, wherein carries out the measurement of assembly earlier, and the data that record be used for calculating between two touch points distance and (or) position of two touch points.Said method also can comprise at least a portion of following step; For example calculate equivalent resistance between two-terminal or voltage at least; And this calculation procedure can be for example carried out through measuring via the electric current of at least one terminal and through measuring at least the voltage difference between two-terminal; Wherein voltage analog-digital converter capable of using (ADC) is measured and is got; Electric current then can for example learn that through the voltage on the resistors in series of measuring the tool known numeric value wherein resistors in series is configurable between a voltage source and a terminal.
Measured values more of the present invention mainly can refer to, and are connected in the resistance value between two-terminal at least (or claim sheet resistance value) of same resistor disc, and are connected in the resistance value (or claiming bar to bar resistance value) between the terminal of different resistor discs.
Use electric resistance touch-control device and method among the present invention; Can cause apply characteristic electron (like electric current, magnitude of voltage and resistance value) in first resistor disc and (or) at least some terminals of second resistor disc; And on the contrary, at least one obtains similar characteristic electron from a plurality of terminals.Above-mentioned characteristic electron can be through applying different magnitudes of voltage at least a portion of terminal, perhaps through applying flow through at least a portion of terminal of different electric, and the characteristic electron measurement of the end points of electric resistance touch-control device obtained.In addition, the control module in the above-mentioned electric resistance touch-control device also can apply the aforesaid voltage value.
Said method also can comprise obtains an operational model, its represent between two touch points distance and (or) relation between the position of two touch points itself and the characteristic electron obtained.The method capable of using in the electric resistance touch-control device memory program of electric resistance touch-control panel characteristic, wherein this electric resistance touch-control panel comprises first resistor disc, second resistor disc and terminal.The measured value of different touch points is set up on the aforementioned operational model electric resistance touch-control panel capable of using; And aforementioned memory program can comprise with varying strength and position to be touched first resistor disc, touches wherein that intensity can refer to comprise touch points size, touch points shape and one combination of strength when pushing touch points.
Said method also can comprise and the electric resistance touch-control device is carried out periodicity proofreaies and correct, and this periodically proofread and correct and can when not detecting touching, for example reach through measuring first resistor disc (or) resistance value between two-terminal at least of second resistor disc carries out.
According to one embodiment of the invention, the present invention provides a kind of electric resistance touch-control device, and its characteristics are, comprise:
One first resistor disc;
One second resistor disc, this second resistor disc are that configuration is adjacent to this first resistor disc, make that putting on this first resistor disc the pressure of one first touch points and one second touch points causes between this first resistor disc and this second resistor disc and produce electric current; And
One control module is coupled to a first terminal and one second terminal;
Wherein couple under the situation that is selected from by the resistor disc in this first resistor disc and this formed group of second resistor disc in this first terminal and this second terminal, this control module is in order to measure one first resistance value between this first terminal and this second terminal;
Wherein be coupled to this first resistor disc and this second terminal is coupled under the situation of this second resistor disc in this first terminal, this control module is in order to measure one second resistance value between this first terminal and this second terminal;
Wherein this control module is also in order to calculate the distance between this first touch points and this second touch points according to this first resistance value and this second resistance value.
According to another embodiment of the present invention; The present invention provide in addition a kind of on the assembly that comprises one first resistor disc and one second resistor disc method of operating; Its characteristics are; This second resistor disc is that configuration is adjacent to this first resistor disc, makes that putting on this first resistor disc the pressure of one first touch points and one second touch points causes between this first resistor disc and this second resistor disc and produce electric current, and this method comprises:
Couple under the situation that is selected from by the resistor disc in this first resistor disc and this formed group of second resistor disc in this first terminal and this second terminal, measure one first resistance value between this first terminal and this second terminal;
Be coupled to this first resistor disc and this second terminal is coupled under the situation of this second resistor disc in this first terminal, measure one second resistance value between this first terminal and this second terminal; And
Calculate the distance between this first touch points and this second touch points according to this first resistance value and this second resistance value.
According to further embodiment of this invention, it is a kind of in order to detect on the resistor disc in the touching of one first touch points and one second touch points and the method for calculating its position that the present invention provides again, and its characteristics are that this method comprises:
Measure one first resistance value between two-terminal, this two-terminal couples a resistor disc that is selected from by in one first resistor disc and the formed group of one second resistor disc;
Measurement is coupled to the terminal of this first resistor disc and is coupled to one second resistance value between the terminal of this second resistor disc;
Measure the voltage on those terminals;
Detecting this first resistor disc is touched in this first touch points and this second touch points; And
According to this first resistance value, this second resistance value and voltage this first touch points of calculating that records and the position of this second touch points.
According to yet another embodiment of the invention, the present invention provides a kind of electric resistance touch-control device again, and its characteristics are, comprise:
One first resistor disc;
One second resistor disc, this second resistor disc are that configuration is adjacent to this first resistor disc, make that putting on this first resistor disc the pressure of one first touch points and one second touch points causes between this first resistor disc and this second resistor disc and produce electric current; And
One control module is in order to detect on the resistor disc in the touching of one first touch points and one second touch points and to calculate its position;
Wherein also in order to measure one first resistance value between two-terminal, this two-terminal couples a resistor disc that is selected from by in this first resistor disc and this formed group of second resistor disc to this control module;
This control module also is coupled to the terminal of this first resistor disc in order to measurement and is coupled to one second resistance value between the terminal of this second resistor disc;
This control module is also in order to measure the voltage on those terminals;
This control module is also touched in this first touch points and this second touch points in order to detect this first resistor disc; And
This control module is the position in order to calculate this first touch points and this second touch points according to this first resistance value, this second resistance value and the voltage that records also.
Description of drawings
Fig. 1 illustrates a kind of electric resistance touch-control schematic representation of apparatus according to the embodiment of the invention;
Fig. 2 is the synoptic diagram that illustrates voltage measurement according to the embodiment of the invention;
Fig. 3 illustrates the synoptic diagram that sheet resistance (sheet resistance) is measured according to the embodiment of the invention;
Fig. 4 illustrates the synoptic diagram that bar to bar resistance (inter-sheet resistance) is measured according to the embodiment of the invention;
Fig. 5 illustrates the synoptic diagram that quaternary bar to bar resistance (quadruple inter-sheet resistance) is measured according to the embodiment of the invention;
Fig. 6 is the synoptic diagram that illustrates control module in a kind of electric resistance touch-control device according to the embodiment of the invention;
Fig. 7 illustrates a kind of in order to determine the process flow diagram of the method for two touch points positions on first resistor disc according to the embodiment of the invention;
Fig. 8 accordings to the embodiment of the invention to illustrate a kind of in order to determine the process flow diagram of the method for touching state on first resistor disc;
Fig. 9 illustrates a kind of memory program result to characteristic electron according to the embodiment of the invention to make the value of the looking into table that stores;
Figure 10 illustrates a kind of synoptic diagram with first resistor disc of two touch points according to the embodiment of the invention;
Figure 11 is the structural representation that illustrates a kind of resistance-type touching device according to the embodiment of the invention.
[primary clustering symbol description]
100,300: the electric resistance touch-control device
110,130,310,330,410,507,515,520,540,550,560,570: resistor disc
112,114,133,136,316,318,332,334,512,514,511,513,522,528,542,548,552,554,562,564,572,574,610,620,630,640: terminal
120,125,312,314,342,344,411,412,563,565,573,575: touch points
140,600: control module
322,337,338,339,611: resistor
415,416: shadow spots
420: the central point
430: imaginary line segment
445: angle
502,504: voltage measurement module
526,546,580: resistance measuring module
544,555: lead
612,613: the controller pin
614,615: controller is exported into portion
616: portion is gone in simulation output
660: steering logic
665: the analog digital transition components
705～760,810～850: step
900: the value of looking into table
910～950: field
Embodiment
Hereinafter is to lift embodiment to cooperate appended accompanying drawing to elaborate; But the embodiment that is provided not is the scope that contains in order to restriction the present invention; And the description of structure running is non-in order to limit the order of its execution; Any structure that is reconfigured by assembly, the device with impartial effect that produces is all the scope that the present invention is contained.In addition, accompanying drawing is not mapped according to life size only for the purpose of description.
About " voltage " used herein term, can make a general reference the required voltage of general electric circuitry packages operation, also can refer to the numerical value (being magnitude of voltage) of voltage, its meaning can disclose according to technology concrete among this paper and do more suitable identification.
Fig. 1 illustrates a kind of electric resistance touch-control schematic representation of apparatus according to the embodiment of the invention.Electric resistance touch-control device 100 comprises first resistor disc 110 and second resistor disc 130, and wherein first resistor disc 110 is to supply the user to push to carry out start.When first resistor disc 110 was pressed, first resistor disc 110 can contact with second resistor disc 130 in the position of one or more contact points.
In embodiments of the present invention; Electric resistance touch-control device 100 can be four lines (four-wire) electric resistance touch-control device; Yet the electric resistance touch-control device of other pattern (for example: five wire resistance type contactor control devices; Or other has four or the electric resistance touch-control device of multi-endpoint more) also can adopt the described apparatus and method of the embodiment of the invention, above-mentioned is not in order to limit the present invention.
Electric resistance touch-control device 100 comprises a plurality of terminals (terminal), and wherein terminal is positioned at the edge of each resistor disc.Be meant at least a portion of resistor disc one side, a jiao or its combination of resistor disc at this alleged " edge ".Above-mentioned terminal (for example: terminal 112 shown in Figure 1) can be connected in control module 140, and control module 140 can add or the electric current and the magnitude of voltage of control terminal (like terminal 112).
As shown in Figure 1; In the exemplary embodiments of electric resistance touch-control device 100; First resistor disc 110 can be touched at first touch points 120 and second touch points, 125 quilts simultaneously, the control module 140 of electric resistance touch-control device 100 then can determine 125 of first touch points 120 and second touch points distance and (or) position.
In the embodiment of exemplary, electric resistance touch-control device 100 can be four lines (four-wire) formula contactor control device, and first resistor disc 110 is connected in terminal 112,114, and terminal 112,114 is positioned at the left side edge and the right side edge of first resistor disc 110.Similarly, second resistor disc 130 is connected in terminal 133,136, and terminal 133,136 is positioned at the top and the bottom margin of second resistor disc 130.
In some embodiments of the invention; Terminal 112,114,133,136 can be connected in electronic installation; Make electronic surveying characteristic (electronic measurable attribute) (like resistance, voltage ... Or the like) can be obtained through terminal 112,114,133,136; And see through the position that characteristic electron that terminal 112,114,133,136 obtained can be used to determine first touch points 120 and second touch points 125, its mode is described below.
Electric resistance touch-control device 100 comprises control module 140; Add characteristic electron in terminal 112,114,133,136 beyond it is available; Obtain characteristic electron to see through terminal 112,114,133,136, and can be in order to the information that gets from terminal 112,114,133,136 detectings is handled.The characteristic electron that control module 140 can be detected according to for example voltage measurement module or resistance measuring module calculate the distance between two touch points on X axle in first resistor disc 110 or the Y axle, and control module 140 can be in order to calculate the position of two touch points.
Fig. 2 is the synoptic diagram that illustrates voltage measurement according to the embodiment of the invention.As shown in Figure 2, voltage measurement terminal 512,514,511,513 capable of using carries out, and wherein terminal 512,514 is connected in first resistor disc 515, and terminal 511,513 is connected in second resistor disc 507.Terminal 512,514 can have different scheduled voltages, and magnitude of voltage can offer terminal 512,514 respectively by control module (control module 140 as shown in Figure 1).When being added on terminal 512,514 outside the voltage, the voltage on the terminal 511,513 can be therefore measured and get (for example: through control module).The voltage measurement of terminal 511,513 can be undertaken by voltage measurement module 502,504, and one in the voltage measurement module 502,504 can comprise analog-digital converter (ADC).The operation of above-mentioned voltage measurement can be in order to for example detecting the central point in the middle of two touch points, or detecting connects virtual line segment and the X axle of resistor disc or the angle of Y between centers of two touch points.
In some embodiment; When control module adds relative high voltage in terminal 512 and when relatively low-voltage is in terminal 514; The magnitude of voltage of terminal 511 can be described as the 1st measurement setting value, and (measurement setup 1, MS1), and the magnitude of voltage of terminal 513 can be described as the 2nd measurement setting value (MS2).In some embodiment, analog-digital converter can be in order to the voltage of measurement terminal 511,513.Similarly, when outside be added on terminal 511 voltage when being higher than the voltage that is added to terminal 513, the magnitude of voltage of terminal 512 can be described as the 3rd and measures setting value (MS3), and the magnitude of voltage of terminal 514 can be described as the 4th and measures setting value (MS4).
Fig. 3 illustrates the synoptic diagram that sheet resistance (sheet resistance) is measured according to the embodiment of the invention.As shown in Figure 3, sheet resistance is measured and can be measured the resistance value of 522,528 of the terminals of same resistor disc 520.Terminal 522,528 can be disposed at the relative both sides of resistor disc 520 in the four-wire resistance type contact panel, or for example in the five-line contact panel, is disposed at any edge of same resistor disc.In addition, Fig. 3 also can comprise and adopt resistance measuring module (like the resistance measuring module 526 of Fig. 3) to the resistance measurement mode shown in Figure 5, its in order to measure two or a plurality of terminal between resistance value.In operation, the step of measured resistance value can be carried out through the electric current of setting the voltage difference on the measured end points and measuring the measured end points of flowing through, and maybe can carry out through electric current that adds the measured end points of flowing through and the voltage difference of measuring on the measured end points.Secondly, the resistance value that gets through resistance measuring module 526 detectings can be obtained by control module.According to this, adopt above-mentioned sheet resistance measuring mode just can measure to the resistance value between the terminal of single resistor disc.In the four-wire resistance type contactor control device, this kind metering system can carry out on the terminal of first resistor disc, and its measured value can be described as the 5th and measures setting value (MS5), and can on the terminal of second resistor disc, carry out, and its measured value can be described as the 6th and measures setting value (MS6).On the other hand; In five wire resistance type contactor control devices; Above-mentioned resistance measurement mode can be in carrying out between the different terminals of arranging on the same resistor disc; Can on resistor disc, produce voltage gradient (voltage gradient) by different directions whereby, then can collect the more information of relevant touch points two above direction applied voltage gradients, and can therefore detect more accurately the touch points position.
Fig. 4 illustrates the synoptic diagram that bar to bar resistance (inter-sheet resistance) is measured according to the embodiment of the invention.As shown in Figure 4, the bar to bar resistance measuring mode comprises the terminal that utilizes different resistor discs (first resistor disc 560 and second resistor disc 570), and the touch points on first resistor disc 560 563,565 is equivalent to the touch points 573,575 on second resistor disc 570.In some embodiment, this bar to bar resistance measuring mode can be measured with the resistance value between another terminal that is connected second resistor disc a terminal that connects first resistor disc; For instance, as shown in Figure 4, the resistance value between one in the terminal 572,574 of one and second resistor disc 570 in the terminal 562,564 of bar to bar resistance measuring mode energy measurement first resistor disc 560.With the above, the operation of this measured resistance value can be undertaken by resistance measuring module 580.It should be noted that; When at least one terminal of each resistor disc connects resistance measuring module (resistance measuring module 526 as shown in Figure 3); The alternate manner that calculates resistance value between two resistor discs also can comprise measure two or a plurality of terminal between resistance value, electric current and (or) voltage, this can be by following shown in Figure 5.
This area prior art person can be called the resistance value of 572 of terminal 562 and terminals the 7th and measure setting value (MS7); The resistance value of 574 of terminal 562 and terminals is called the 8th measures setting value (MS8); The resistance value of 572 of terminal 564 and terminals is called the 9th measures setting value (MS9), and the resistance value of 574 of terminal 564 and terminals is called the 10th measures setting value (MS10).
Fig. 5 illustrates the synoptic diagram that quaternary bar to bar resistance (quadruple inter-sheet resistance) is measured according to the embodiment of the invention.Resistance between two pairs of terminals of quaternary bar to bar resistance measuring mode energy measurement, wherein each is connected in single resistor disc (like first resistor disc 540 or second resistor disc 550) to terminal, and each connects via lead terminal.For instance; The first pair of terminal 542,548 connects via lead 544; And second pair of terminal 552,554 connects via lead 555, and lead 544 is connected in resistance measuring module 546 with lead 555, in order to the resistance value of measuring between different resistor discs via lead 544,555.
Fig. 6 is the synoptic diagram that illustrates control module in a kind of electric resistance touch-control device according to the embodiment of the invention.Control module can comprise analog digital transition components (ADC), switch and one or more resistor.As shown in Figure 6; Control module 600 splicing ears 610,620,630,640; Each can connect first or second resistor disc in the terminal 610,620,630,640; And each can be connected in two controller pins in the terminal 610,620,630,640, also can be connected in one (like controller pins 612) in the two controller pins via resistor, and can be directly connected in another person in the two controller pins (like controller pin 613).For instance; Terminal 610 can be connected in controller via resistor 611 and export into portion (I/O slice) 614; And can be directly connected in controller and export into portion 615, and can be connected in simulation output and go into portion 616, wherein simulation output goes in the portion 616 to be connected to analog-digital converter.In addition, terminal 620,630,640 can be coupled in a suitable manner to corresponding controller pin.In some embodiment; Control module 600 can comprise inner silicon resistor and analog digital transition components, makes each terminal only need a controller pin, and under this kind situation; For compensating silicon resistor, can take a correction mechanism in operational low accuracy.In addition, steering logic 660 can be set in order to implement above-mentioned measurement with analog digital transition components 665.In some embodiment, but control module 600 integration processing unit, or transmit measurement result to another module for subsequent treatment.
Fig. 7 illustrates a kind of in order to determine the process flow diagram of the method for two touch points positions on first resistor disc according to the embodiment of the invention.
In step 705; The electric resistance touch-control device carries out memory program (learning process) earlier; This memory program can comprise a cover measuring process; Wherein two touch points on first resistor disc are X axle or the Y directions along first resistor disc, and the precalculated position of tool different distance between two touch points is pressed repeatedly with the predetermined strength that is similar to general finger; Carry out again then that sheet resistance is measured and bar to bar resistance is measured, numerical value such as the relation between measurement result, the distance between touch points and touch points intensity or parameter then can be according to this by memory and store.In addition, above-mentioned memory program also can repeat with the intensity that is similar to pen-type tool two touch points to be carried out.In some embodiment, above-mentioned memory program can also other extra intensity be then remembered and is stored, and increases accuracy whereby, and same program is carried out on another direction of principal axis after can on a direction of principal axis, finishing again.The above-mentioned result who carries out memory program can be stored in storage element; Wherein storage element can connect or be contained in the electric resistance touch-control device; And according to embodiments of the invention, the above-mentioned result who carries out memory program can form for example one or more value of looking into table (lookup table).
Then; In step 710; Periodically proofread and correct; Change about the characteristic electron of assembly in the electric resistance touch-control device with compensation, wherein this kind characteristic electron can comprise the deviation (deviation), measurement skew (offset) and the similar characteristics of analog-digital converter of resistance, current source and voltage source of resistance, other assembly of first and second resistor discs, and the variable quantity that is compensated also can come from for example temperature variation.In addition, when first resistor disc by when touching, the measurement result of sheet resistance (like above-mentioned MS5 and MS6) can be through storing, then as a reference value of carrying out other measurement when touching when first resistor disc.
Secondly, in step 715, the magnitude of voltage of the terminal of electric resistance touch-control device is measured (control module for example capable of using is measured).In the four-wire resistance type contactor control device, control module can add different magnitudes of voltage in the two-terminal that connects a resistor disc (first resistor disc or second resistor disc), and magnitude of voltage can be measured and got by the two-terminal of another resistor disc.For instance, the terminal of first resistor disc receives impressed voltage, and magnitude of voltage is to be measured and got by the terminal of second resistor disc.
Then; In step 720; Resistance value between the two-terminal of same resistor disc in the electric resistance touch-control device is measured (control module for example capable of using is measured), and wherein above-mentioned two-terminal can be positioned at neighboring edge or other configuration of the subtend edge of same resistor disc, same resistor disc.In addition, the number of same resistor disc upper terminal and position can adjust according to the pattern (for example four lines or five wire resistance type contactor control devices) of electric resistance touch-control device, do not exceed with above-mentioned embodiment of the present invention.
Secondly; In step 725, the terminal in the electric resistance touch-control device is carried out bar to bar resistance measure (control module for example capable of using is measured), and this measuring process can carry out several terminals; Wherein at least one terminal is connected in first resistor disc, and another terminal is connected in second resistor disc at least.For instance, under the situation of above-mentioned measurement or detecting two-terminal, one are connected in first resistor disc in the two-terminal, and another person is connected in second resistor disc in the two-terminal.In some embodiment, be connected in different resistor discs two are measured or detected to available quaternary bar to bar resistance (quadruple inter-sheet resistance) metering system with the resistance value between upper terminal.Yet the personnel of convention art technology also can use other resistance measurement mode to carry out above-mentioned measurement or detecting step.
When in five wire resistance type contact panels, carrying out sheet resistance measurement and bar to bar resistance measurement; Sheet resistance is measured can be in two pairs of enterprising row of subtend terminal of same resistor disc; Wherein pair of terminal comprises the two-terminal on the X axle, and another comprises the two-terminal on the Y axle to terminal.Secondly, sheet resistance is measured also can be through with each be connected to a lead in two pairs of terminals, and the resistance value between the lead of terminal is carried out about each through measuring.On the other hand, the resistance value measured then between at least one terminal of at least one terminal and second resistor disc that can be through measuring first resistor disc of bar to bar resistance is carried out.
Then; In step 727; Distance on distance on the decision X axle between two touch points and the Y axle between two touch points; Distance on above-mentioned X axle and the Y axle can obtain from the result that sheet resistance is measured and bar to bar resistance is measured, and wherein resistivity measurements is converted into the step of distance on X axle and the Y axle, and the value of looking into table capable of using (value of looking into table 900 as shown in Figure 9) carries out.In some embodiment, voltage measurement also can be used to determine the distance on X axle and the Y axle.
Then; In step 730; Determine the touching state on first resistor disc; And non-touching state and other touching state are distinguished in its bar to bar resistance measurement capable of using, wherein single touching (single-touch) state, two touching (dual-touch) state and can not to detect the difference mode of (non-detectable) state then as shown in Figure 8.Mainly be meant when object (like palm) touches electric resistance touch-control device 100 because of carelessness electric resistance touch-control device 100 state that unexpected touching is not detected to this kind this alleged " can not detect state ".
In step 740, shadow (shadow) touch points and true touch points (touch points on first resistor disc of for example in fact being touched) are distinguished.Step 740 also can comprise the scope of the angle that forms between the X axle that determines first resistor disc or Y axle and the line segment that is connected two touch points; Wherein this angle is between about 0～an angle of 90 degrees or about 90～180 degree angles, and this scope can decide according to the voltage measurement described in the step 715.
Then in step 750, determine the position of central point, and the position of central point is to be represented by the X coordinate of two touch points and the mean value of Y coordinate.Voltage measurement described in the step 715 capable of using of the position of central point decides; And the position of central point can be decided according to the set of rule that is stored in storage element, and storage element can intercom with the electric resistance touch-control device mutually, embedded (embedded) is in the electric resistance touch-control device or be connected in the electric resistance touch-control device.
Secondly in step 760, determine the position of touch points, wherein the position can be decided according to result of calculation and the set of rule that is stored in storage element, and the configurable one-tenth of storage element intercoms with the electric resistance touch-control device mutually.In some embodiment; Determine the step of touch points position on first resistor disc; Also can decide or adjust, not exceed with above-mentioned embodiment of the present invention according to aforementioned stored measurement result, and under this situation; The method more can comprise makes comparisons to characteristic electron that records and aforementioned stored measurement result, to calculate the position of touch points.
The described method of the embodiment of the invention also can be in order to obtain the coordinate of touch points in the said metering system of Fig. 2 to Fig. 5.In some embodiment, shown in figure 10, the coordinate of touch points can be obtained from the scope and 420 of the central points of distance B X, distance B Y, angle 445, and the touch points coordinate of being obtained also can be done fine setting correction based on the position and the angle 445 of its estimation.
In some embodiments of the invention; The position of two touch points also can a polynomial approximation method (polynomial approximation) be obtained; Wherein the characteristic electron that records of this polynomial approximation method, touch points coordinate, touch points intensity and sum total can be imported and do computing in the arithmetic element; Wherein arithmetic element can provide at least one polynomial expression, and this polynomial expression can be represented the relation between measurement result and touch points characteristic.The result that aforementioned polynomial expression can be measured is an input value; And output touch points position or other characteristic (like the distance B X among Figure 10, distance B Y, angle 445 and central point 420), the characteristic electron that wherein records can be the voltage, the electric current that under various touch points position and intensity, record reach (or) resistance value.In addition, arithmetic element can be according to the positional information and the associated electrical characteristic of previous storage, produces a kind of model that the influence of each characteristic electron value of two touch points positions is taken into account, and the approximate location information of two touch points is provided.
Mentioned in the present embodiment step except that chatting bright its order person especially, all can be adjusted its front and back order according to actual needs, even can carry out simultaneously simultaneously or partly, and process flow diagram shown in Figure 7 is merely an embodiment, is not in order to qualification the present invention.
Fig. 8 accordings to the embodiment of the invention to illustrate a kind of in order to determine the process flow diagram of the method for touching state on first resistor disc.In step 810, the characteristic electron of representing resistance value between first and second resistor discs is done detecting or measurement, and itself and predetermined critical are made comparisons.If the value of detecting is not less than predetermined critical, then the touching state is judged as touchless state (like step 813).On the contrary, if the value of detecting, then relatively represent resistance value between the terminal of sheet resistance value on X axle or the Y direction less than predetermined critical and represents the corresponding critical value (like step 820) of single touching state.If the resistance value of all resistor discs all is higher than the words of the critical value of single touching state; Then the touching state is judged as single touching state (like step 822); If the resistance value that records is lower than the critical value of single touching state, judge then that then whether the resistance value that records on one or more directions of resistor disc is less than predetermined or calibrated two touching state critical values (like step 830).If then like step 835, the touching state is judged as the touching state that can not detect (non-detectable); Words if not; Then like step 840; Judge whether the relation between sheet resistance value and voltage measurement difference exists; And this voltage measurement difference can be two pairs of differences (difference between for example aforementioned measurement setting value MS1 and MS2) between extrorse measurement setting value, and the relation between aforementioned sheet resistance value and voltage measurement difference also can be taken into account the bar to bar resistance value.If the relation between above-mentioned sheet resistance value and voltage measurement difference exists, then like step 850, the two touching states of decision, otherwise like step 835, the touching state is judged as the touching state that can not detect.
Fig. 9 illustrates a kind of memory program result to characteristic electron according to the embodiment of the invention to make the value of the looking into table that stores.This value of looking into table 900 is to illustrate among Fig. 3 the corresponding relation between bar to bar resistance measurement result and distance B X among sheet resistance measurement result, Fig. 4 and Fig. 5 basically.Value in the value of the looking into table can produce according to one group of measurement result, and wherein two fingers or pen-type tool are that X axle along first resistor disc is positioned over a precalculated position, and this precalculated position is the position of using for sheet resistance value and bar to bar resistance value being done calculating.In another embodiment, also can adopt about the correlation values of distance B Y and form another value of looking into table, for use.
Particularly; Measurement numerical value in first hurdle 910; Can be directly proportional with the ratio of sheet resistance value (like setting value MS5) with respect to the known value of resistors in series; And the measurement numerical value in third column 930 and the 5th hurdle 950 then is to be directly proportional with the ratio of bar to bar resistance value (like setting value MS7, MS8, MS9, MS10) with respect to the known value of resistors in series.For instance, the measurement numerical value in third column 930 and the 5th hurdle 950 is the mean value of representing two medians (median value) in the ratio of resistance value and bar to bar resistance value (like setting value MS7, MS8, MS9, MS10) of resistors in series.In addition, in some embodiment, more measurement results capable of using and The above results are together carried out computing, obtain the accurately calculated value of distance B X whereby.
In addition; Numerical value in second hurdle 920 is represented the corresponding distance B X that measures numerical value in first hurdle 910 and the third column 930; And the numerical value in the 4th hurdle 940 is represented the corresponding distance B X that measures numerical value in first hurdle 910 and the 5th hurdle 950, and wherein the measurement numerical value in third column 930 and the 5th hurdle 950 can be depending on distance and the intensity of touch points between touch points.
Under normal operation; Sheet resistance ratio and bar to bar resistance ratio can utilize resistors in series to measure and get as stated; Wherein the sheet resistance ratio is the pairing line segment of numerical value (line segment that is linked to be like two touch points) on coupling first hurdle 910, and interpolation method capable of using (interpolation) is made calculation process to two adjacent segments.Then, for the purpose of simple illustration, though, suppose that angle 445 is the situation at 0 degree angle, the bar to bar resistance ratio can be made comparisons with the measurement numerical value in third column 930 and the 5th hurdle 950, and the linearity capable of using of the distance on the X axle, interpolation method non-linear or other type are calculated.In addition, aforesaid way also can utilize look into value relevant with the Y axle to show to carry out, and does not exceed with above-mentioned at this.Moreover; In angle 445 is not under the situation of 0 degree angle or an angle of 90 degrees; Sheet resistance value on distance B X, distance B Y, the X-direction, the sheet resistance value on the Y direction and the bar to bar resistance value that depends on actual distance between touch points; Optimum matching therebetween can see through iteration search (iterative search) mode, under third column 930 situation all identical with the Y axle value of looking into table for the X axle with the interior slotting ratio on 950 on the 5th hurdle, draws.
In addition; Also can utilize the memory program table of other type to realize said method; For instance; Can measure more touching intensity for computing, or provide a plurality of value of looking into as shown in Figure 9 tables for computing with different angles 445, and this type of memory program table helps to increase the accuracy of touch detection according to different central points 420.
Figure 10 illustrates a kind of synoptic diagram with first resistor disc of two touch points according to the embodiment of the invention.Shown in figure 10, first resistor disc 410 is touched in two touch points, and it is respectively first touch points 411 and second touch points 412.Each all can be by X coordinate and the definition of Y coordinate in first touch points 411 and second touch points 412; And the X coordinate of first touch points 411 and second touch points 412 and the mean value of Y coordinate are represented in central point 420; Wherein central point 420 is positioned at the centre of imaginary line segment 430, and imaginary line segment 430 is represented the distance of 412 of first touch points 411 and second touch points.Secondly, shadow spots 415 is to be represented by the Y coordinate of the X coordinate of second touch points 412 and first touch points 411, and another shadow spots 416 is to be represented by the Y coordinate of second touch points 412 and the X coordinate of first touch points 411.
In embodiments of the present invention, setting value MS1, MS2, MS3 and MS4 can be in order to the positions of decision central point 420, and the mode of the X coordinate of decision central point 420 one is exactly the mean value that calculates setting value MS1 and MS2 wherein.Likewise, the Y coordinate setting value MS3 capable of using and the MS4 of central point 420 calculate.Secondly; The X coordinate of decision central point 420 and the another kind of mode of Y coordinate are to see through weighted mean formula (weighted average formula) to obtain; And in this weighted mean formula, apart from position, central point terminal far away, the weight of the setting value on it the more.Following is a kind of example of weighted mean formula.
1.H_MID＝(MS1*(MS2_MAX-MS2_AV)+MS2*(MS2_AV-MS2_MIN))/(MS2_MAX-MS2_MIN)
2.V_MID＝(MS3*(MS1_MAX-MS1_AV)+MS4*(MS1_AV-MS1_MIN))/(MS1_MAX-MS1_MIN)
Wherein H_MID is the X coordinate of central point 420; V_MID is the Y coordinate of central point 420, and MS1_AV is the mean value of MS1 and MS2, and MS2_AV is the mean value of MS3 and MS4; MS1_MAX is the maximum possible value of MS1 or MS2; MS2_MAX is the maximum possible value of MS3 or MS4, and MS1_MIN is the minimum possible value of MS1 or MS2, and MS2_MIN is the minimum possible value of MS3 or MS4.
Above-mentioned measurement also can connect the virtual line segment of two touch points and the X axle or the formed angle of Y between centers of first resistor disc in order to decision.In embodiments of the present invention, above-mentioned angle 445 are imaginary line segments 430 with the X between centers towards the X axle on the occasion of the formed angle of direction.In addition, in some cases, as setting value MS1 during less than setting value MS2, angle 445 is in the middle of an angle of 90 degrees and 180 degree angles; In addition, 445 of angles are in the middle of 0 degree angle and an angle of 90 degrees.Then, after decision angle 445, just can distinguish first touch points 411 and second touch points 412 and two shadow spots 415,416.In certain embodiments, when angle 445 more near miter angle or 135 degree angles, perhaps when touching intensity increases, the difference between setting value MS1 and setting value MS2 can along with 412 of first touch points 411 and second touch points apart from increase and increase.Thus, when the estimated value of given touching intensity and distance B X or DY, distance B X (if DY is given) or DY (if DX is given) just can for example be calculated according to formula:
DX＝(MS1-MS2+MS3-MS4)*KX/(I*DY)
DY＝(MS1-MS2+MS3-MS4)*KY/(I*DX)
Wherein KX and KY are used for constant that analog digital conversion (ADC) unit is converted into centimetre, and I is the factor of extracting from touching intensity, and it can extract from bar to bar resistance is measured successively.
Figure 11 is the structural representation that illustrates a kind of resistance-type touching device according to the embodiment of the invention.Shown in figure 11; Resistance-type touching device 300 comprises first resistor disc 310 and second resistor disc 330; Wherein the surface of second resistor disc 330 is close to or is parallel to haply the surface of first resistor disc 310; And first resistor disc 310 is connected in terminal 316,318, the second resistor discs 330 and is connected in terminal 332,334.
When pressure puts on first resistor disc 310; First resistor disc 310 is pressed in two touch points towards second resistor disc 330; Wherein the touch points 314 on first resistor disc 310 can be connected with the touch points 344 on second resistor disc 330; Touch points 312 on first resistor disc 310 can be connected with the touch points 342 on second resistor disc 330, and when touch points 312 was connected with touch points 344 with touch points 342 connections and touch points 314, electric current flowed to second resistor disc 330 from first resistor disc 310. Resistor 337 and 339 sees through touch points 312,342,344,314 and is connected in 310 of second resistor disc 330 and first resistor discs, and touch points 342 and the touch points 344 of resistor 338 on second resistor disc 330 forms equivalent resistance.Framework with this exemplary; A part of resistance that resistor 322 constitutes on first resistor disc 310; And resistor 337,338 and 339 formed equivalent resistances are parallelly connected with resistor 322, so the equivalent resistance of 316,318 of terminals can reduce because of the existence of resistor 337,338 and 339.
The resistance value that the terminal of first resistor disc 310 is 316,318; Can be the function that the touching intensity of distance and the touch points 312,314 of 312,314 of touch points is constituted, and the step of calculating touching intensity can be carried out through the resistance value of calculating 330 of first resistor disc 310 and second resistor discs.
Above-mentioned process flow diagram and circuit block diagram mainly are according to the embodiment of the invention, illustrate the framework, function and the mode of operation that can be applicable to possibility embodiment in various systems, the method and computer program product.According to this, each square in process flow diagram or the circuit block diagram all can be represented module, block or parts in the program code, and it comprises one or more executable instruction, in order to realize concrete logic function.In addition, in some embodiments, the function of indication in each square except that chatting bright its order person especially, all can be adjusted its front and back order according to actual needs, even can carry out simultaneously simultaneously or partly, and the above-mentioned embodiment that is merely not is in order to qualification the present invention.For instance, in fact two squares that illustrate in regular turn can be depending on relevant function and carry out simultaneously haply, maybe can carry out according to reverse order.Secondly, each square and combination thereof in process flow diagram or (reaching) circuit block diagram also can be through carrying out the specific use hardware system of concrete function or start, and perhaps the combination of specific use hardware and computer instruction is carried out.
What prior art person can know in this area is; Embodiment according to the invention can system, method or computer software are realized; Therefore embodiment according to the invention completely hardware, completely software (comprise firmware, resident software, little formula sign indicating number (micro-code) ... Or the like) or combine the embodiment of software and hardware to realize that wherein hardware generally can refer to " circuit ", " module " or " system " at this.Moreover the embodiment of the invention also can realize by computer software, and wherein this computer software can have computer readable program code and realizes in any tangible medium wherein.
Again; The foregoing description also can use any combination of one or more computer-usable medium or computer fetch medium; And computer-usable medium or computer fetch medium can be for example; But being not limited to, is electronics, magnetic, optics, electromagnetism, infrared ray or semiconductor system, device, assembly or communications media.In addition, more object lessons of computer fetch medium (non-blanket type tabulation) can comprise electric connection structure, can hold the formula computer disk, hard disk, random access memory (RAM), ROM (read-only memory) (ROM), can eliminate programmable read-only memory (EPROM), flash memory, optical fiber, can hold formula compact disc read-only memory (CDROM), light memory device, transmission medium (as supporting the medium of the Internet or internal network) or magnetic storage or the like.Moreover, aforementioned calculation machine useable medium or computer fetch medium even can be to supply computer program to print on it paper or other medium that are fit to, and computer program can be via for example to above-mentioned paper or medium carry out photoscanning and captured; Then if need, again with suitable method to its compiling or processing; Then it is stored in the calculator memory; So at this alleged computer-usable medium or computer fetch medium can be to see through or link order executive system, device or assembly and can hold, store, communicate by letter, propagate or transmit any medium of the program of confession use; And computer-usable medium or computer fetch medium can be included in fundamental frequency or the portion of carriers; The propagation data signal that together is implemented with program code; And this program code any suitable medium capable of using transmit, and wherein these suitable medium comprise but are not limited to wireless, wired, Connectorized fiber optic cabling, less radio-frequency (RF) and similar fashion.
Above-mentioned computer program code in order to realize operating in the embodiment of the invention; Combination in any that can one or more program language is write, and it comprises Object Oriented OO program language (like Java, Smalltalk, C++ or similar program language) and general procedure program language (like c programming language or similar program language).Program code can be executed on the user's computer fully; Or partly be executed on the user's computer; Or as software package independently, or part is executed on the user's computer and part is executed on the remote computer, or be executed in fully on remote computer or the server.Be executed in program code under the situation of remote computer; Remote computer can be connected in user's computer via the network (inclusion region network (LAN), Wide Area Network (WAN)) of any kenel, maybe can be connected in outer computer (as: via the Internet that Internet Service Provider provided)
Corresponding structure, material, start and the equipollent thereof of all devices or step; And alleged functional module in the claim; Include in order to arbitrary structures, material or the start of execution required function and the combination of the assembly of asking, and the narration among the present invention is not in order to limit scheme of the present invention only in order to describe and explanation; Any this area prior art person; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (42)
1. an electric resistance touch-control device is characterized in that, comprises:
One first resistor disc;
One second resistor disc, this second resistor disc are that configuration is adjacent to this first resistor disc, make that putting on this first resistor disc the pressure of one first touch points and one second touch points causes between this first resistor disc and this second resistor disc and produce electric current; And
One control module is coupled to a first terminal and one second terminal;
Wherein couple under the situation that is selected from by the resistor disc in this first resistor disc and this formed group of second resistor disc in this first terminal and this second terminal, this control module is in order to measure one first resistance value between this first terminal and this second terminal;
Wherein be coupled to this first resistor disc and this second terminal is coupled under the situation of this second resistor disc in this first terminal, this control module is in order to measure one second resistance value between this first terminal and this second terminal;
Wherein this control module is also in order to calculate the distance between this first touch points and this second touch points according to this first resistance value and this second resistance value.
2. electric resistance touch-control device according to claim 1 is characterized in that, also comprises:
One storage assembly, in order to storing the value of a looking into table, this value of looking into table be correlation measurement characteristic electron and this first touch points with this second touch points between the relevant data of distance.
3. electric resistance touch-control device according to claim 2; It is characterized in that; This control module is also in order to calculating a mean value of two medians in one group of resistance value, and this group resistance value comprises the resistance value between the terminal of terminal and this second resistor disc of this first resistor disc.
4. electric resistance touch-control device according to claim 1 is characterized in that, this control module also calculates the distance between this first touch points and this second touch points in order to be dependent on the voltage that records on this first terminal and this second terminal.
5. electric resistance touch-control device according to claim 4 is characterized in that, this control module is to utilize a polynomial approximation method to calculate the distance between this first touch points and this second touch points.
6. electric resistance touch-control device according to claim 5; It is characterized in that; This control module is also in order to calculating a mean value of two medians in one group of resistance value, and this group resistance value comprises the resistance value between the terminal of terminal and this second resistor disc of this first resistor disc.
7. electric resistance touch-control device according to claim 5 is characterized in that, also in order to determine the position of a central point, this first touch points and the X coordinate of this second touch points and the mean value of Y coordinate are represented in this central point to this control module.
8. electric resistance touch-control device according to claim 5 is characterized in that, this control module is also in order to calculate the position of this first touch points and this second touch points.
9. electric resistance touch-control device according to claim 1 is characterized in that, this control module is also in order to judge that this first resistor disc is touched in two touch points.
10. electric resistance touch-control device according to claim 9 is characterized in that, this control module also with so that this that records first resistance value, this second resistance value of recording be associated with the voltage that on this first terminal and this second terminal, records.
11. electric resistance touch-control device according to claim 9 is characterized in that, this control module is also used so that this that records first resistance value is associated with the voltage that records.
12. electric resistance touch-control device according to claim 1 is characterized in that, this control module is also in order to carry out a memory program to being selected from by the resistor disc in this first resistor disc and this formed group of second resistor disc.
13. method of operating on the assembly that comprises one first resistor disc and one second resistor disc; It is characterized in that; This second resistor disc is that configuration is adjacent to this first resistor disc; Make that put on this first resistor disc the pressure of one first touch points and one second touch points causes between this first resistor disc and this second resistor disc and produce electric current, this method comprises:
Couple under the situation that is selected from by the resistor disc in this first resistor disc and this formed group of second resistor disc in this first terminal and this second terminal, measure one first resistance value between this first terminal and this second terminal;
Be coupled to this first resistor disc and this second terminal is coupled under the situation of this second resistor disc in this first terminal, measure one second resistance value between this first terminal and this second terminal; And
Calculate the distance between this first touch points and this second touch points according to this first resistance value and this second resistance value.
14. method according to claim 13 is characterized in that, also comprises:
The data that distance is relevant between this first touch points and this second touch points are associated with the measurement characteristic electron.
15. method according to claim 14 is characterized in that, also comprises:
Calculate a mean value of two medians in one group of resistance value, wherein this group resistance value comprises the resistance value between the terminal of terminal and this second resistor disc of this first resistor disc.
16. method according to claim 13 is characterized in that, also comprises:
Be dependent on the voltage that records on this first terminal and this second terminal and calculate the distance between this first touch points and this second touch points.
17. method according to claim 16 is characterized in that, the step of calculating distance between this first touch points and this second touch points also comprises:
Utilize a polynomial approximation method to calculate the distance between this first touch points and this second touch points.
18. method according to claim 17 is characterized in that, also comprises:
Calculate a mean value of two medians in one group of resistance value, wherein this group resistance value comprises the resistance value between the terminal of terminal and this second resistor disc of this first resistor disc.
19. method according to claim 17 is characterized in that, also comprises:
Determine the position of a central point, this first touch points and the X coordinate of this second touch points and the mean value of Y coordinate are represented in this central point.
20. method according to claim 17 is characterized in that, also comprises:
Calculate the position of this first touch points and this second touch points.
21. method according to claim 13 is characterized in that, also comprises:
Judge that this first resistor disc is touched in two touch points.
22. method according to claim 21 is characterized in that, also comprises:
This first resistance value that records, this second resistance value that records are associated with the voltage that on this first terminal and this second terminal, records.
23. method according to claim 21 is characterized in that, also comprises this first resistance value that records is associated with the voltage that records.
24. method according to claim 13 is characterized in that, also comprises:
Carry out a memory program to being selected from by the resistor disc in this first resistor disc and this formed group of second resistor disc.
25. one kind in order to detect on the resistor disc in the touching of one first touch points and one second touch points and the method for calculating its position, it is characterized in that this method comprises:
Measure one first resistance value between two-terminal, this two-terminal couples a resistor disc that is selected from by in one first resistor disc and the formed group of one second resistor disc;
Measurement is coupled to the terminal of this first resistor disc and is coupled to one second resistance value between the terminal of this second resistor disc;
Measure the voltage on those terminals;
Detecting this first resistor disc is touched in this first touch points and this second touch points; And
According to this first resistance value, this second resistance value and voltage this first touch points of calculating that records and the position of this second touch points.
26. method according to claim 25 is characterized in that, detects the step that this first resistor disc touched in this first touch points and this second touch points and also comprises:
This first resistance value that records is associated with the voltage that records.
27. method according to claim 25 is characterized in that, the step of calculating the position of this first touch points and this second touch points also comprises:
Calculate the distance between this first touch points and this second touch points.
28. method according to claim 27 is characterized in that, the step of calculating distance between this first touch points and this second touch points is based on a polynomial approximation method.
29. method according to claim 27 is characterized in that, the step of calculating distance between this first touch points and this second touch points also comprises:
Through using the value of a looking into table to convert this first resistance value and this second resistance value between this first touch points and this second touch points distance.
30. method according to claim 25 is characterized in that, the step of calculating the position of this first touch points and this second touch points also comprises:
Calculate a mean value of two medians in one group of resistance value, wherein this group resistance value comprise in the two-terminal at least of this first resistor disc one and the two-terminal at least of this second resistor disc in resistance value between one.
31. method according to claim 25 is characterized in that, detects the step that this first resistor disc touched in this first touch points and this second touch points and also comprises:
This first resistance value that records, this second resistance value that records are associated with the voltage that records.
32. method according to claim 25 is characterized in that, the step of calculating distance between this first touch points and this second touch points is based on a polynomial approximation method.
33. method according to claim 25 is characterized in that, also comprises:
Resistor disc to being selected from the group that comprises this first resistor disc and this second resistor disc carries out a memory program.
34. an electric resistance touch-control device is characterized in that, comprises:
One first resistor disc;
One second resistor disc, this second resistor disc are that configuration is adjacent to this first resistor disc, make that putting on this first resistor disc the pressure of one first touch points and one second touch points causes between this first resistor disc and this second resistor disc and produce electric current; And
One control module is in order to detect on the resistor disc in the touching of one first touch points and one second touch points and to calculate its position;
Wherein also in order to measure one first resistance value between two-terminal, this two-terminal couples a resistor disc that is selected from by in this first resistor disc and this formed group of second resistor disc to this control module;
This control module also is coupled to the terminal of this first resistor disc in order to measurement and is coupled to one second resistance value between the terminal of this second resistor disc;
This control module is also in order to measure the voltage on those terminals;
This control module is also touched in this first touch points and this second touch points in order to detect this first resistor disc; And
This control module is the position in order to calculate this first touch points and this second touch points according to this first resistance value, this second resistance value and the voltage that records also.
35. electric resistance touch-control device according to claim 34; It is characterized in that the relevance between this first resistance value that this control module also records in order to utilization, this second resistance value that records and the voltage that records is detected this first resistor disc and touched in this first touch points and this second touch points.
36. electric resistance touch-control device according to claim 34; It is characterized in that; Calculate in the step of position of this first touch points and this second touch points in this control module, this control module is also in order to calculate the distance between this first touch points and this second touch points.
37. electric resistance touch-control device according to claim 36 is characterized in that, this control module is based on a polynomial approximation method and calculates the distance between this first touch points and this second touch points.
38. electric resistance touch-control device according to claim 36 is characterized in that, this control module is also in order to convert this first resistance value and this second resistance value between this first touch points and this second touch points distance through the value of a looking into table.
39. electric resistance touch-control device according to claim 34; It is characterized in that; This control module is also in order to calculating a mean value of two medians in one group of resistance value, this group resistance value comprise in the two-terminal at least of this first resistor disc one and the two-terminal at least of this second resistor disc in resistance value between one.
40. electric resistance touch-control device according to claim 34; It is characterized in that the relevance between this first resistance value that this control module also records in order to utilization, this second resistance value that records and the voltage that records is detected this first resistor disc and touched in this first touch points and this second touch points.
41. electric resistance touch-control device according to claim 34 is characterized in that, this control module is also in order to calculate the position of this first touch points and this second touch points based on a polynomial approximation method.
42. electric resistance touch-control device according to claim 34 is characterized in that, this control module is also in order to carry out a memory program to a resistor disc that is selected from the group that comprises this first resistor disc and this second resistor disc.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| US12/979,384 US20110157083A1 (en) | 2009-12-31 | 2010-12-28 | Resistive touch apparatus |
| US12/979,384 | 2010-12-28 |
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| CN102566847A true CN102566847A (en) | 2012-07-11 |
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| CN112712777A (en) * | 2019-10-25 | 2021-04-27 | 新唐科技股份有限公司 | Control circuit and operating system |
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| JP6495573B2 (en) | 2014-02-25 | 2019-04-03 | 富士通コンポーネント株式会社 | Touch panel |
| US11068116B2 (en) | 2019-07-24 | 2021-07-20 | Samsung Electronics Company, Ltd. | Touch detection and position reconstruction |
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2011
- 2011-02-22 JP JP2011035285A patent/JP5399428B2/en active Active
- 2011-06-29 CN CN2011101893895A patent/CN102566847A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493744A (en) * | 2008-01-25 | 2009-07-29 | 三菱电机株式会社 | Touch screen device and user interface device |
| US20100214231A1 (en) * | 2009-02-20 | 2010-08-26 | Tyco Electronics Corporation | Method and apparatus for two-finger touch coordinate recognition and rotation gesture recognition |
| US20100277417A1 (en) * | 2009-04-29 | 2010-11-04 | Nokia Corporation | Resistive touch screen apparatus, a method and a computer program |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112712777A (en) * | 2019-10-25 | 2021-04-27 | 新唐科技股份有限公司 | Control circuit and operating system |
| CN112712777B (en) * | 2019-10-25 | 2024-04-09 | 新唐科技股份有限公司 | Control circuit and operating system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012141941A (en) | 2012-07-26 |
| JP5399428B2 (en) | 2014-01-29 |
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Application publication date: 20120711 |