CN103186301A - Touch-control sensing device and programmable controller - Google Patents
Touch-control sensing device and programmable controller Download PDFInfo
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- CN103186301A CN103186301A CN201110461261XA CN201110461261A CN103186301A CN 103186301 A CN103186301 A CN 103186301A CN 201110461261X A CN201110461261X A CN 201110461261XA CN 201110461261 A CN201110461261 A CN 201110461261A CN 103186301 A CN103186301 A CN 103186301A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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Abstract
The invention discloses a touch-control sensing device and a programmable controller thereof. The programmable controller comprises a plurality of universal pins, a control circuit and a plurality of switching units, wherein the control circuit is used for recording the corresponding relation of the universal pins with a plurality of sensing lines and a plurality of driving lines of a touch panel; and the switching units are correspondingly connected with the universal pins and respectively used for receiving all signals generated by the control circuit based on the corresponding relation, and each switching unit is used for allowing the universal pin correspondingly connected with the switching unit to be selectively connected with a sensing circuit or a drive circuit based on the received switching signals. Due to the adoption of the programmable controller, a designer designing a touch-control sensing device sets corresponding relations between universal pins and the driving lines and between the universal pins and the sensing lines, so that the programmable controller can be applied to various touch panels of different specifications.
Description
Technical field
The present invention is relevant for a kind of touch sensing device, particularly relevant for a kind of programmable controller and use its touch sensing device.
Background technology
Along with the progress of semiconductor and circuit design technique, gradually adopted touch sensing device as man-machine interface in hand-held device or other electronic installations, receive the touch-control input signal that touch sensing device produces thus.
Please refer to Figure 1A, Figure 1A is a kind of functional block diagram of traditional touch sensing device.Touch sensing device 10 comprises contact panel 101 and controller 102, and wherein contact panel 101 for example is projected capacitive touch panel.Contact panel 101 comprises many drive wire D0～D27 and many sense wire S0～S14, wherein drive wire D0～D27 and sense wire S0～S14 hand over more to form a sensing electrode array, and the crossover point of each drive wire D0～D27 and each sense wire S0～S14 is that coupling forms an electric capacity (not shown).In addition, drive wire D0～D27 and sense wire S0～S14 are further by lead corresponding driving pin position D0 '～D27 ' and sensing pin position the S0 '～S14 ' that is connected to controller 102 respectively.Thus, controller 102 is produced in regular turn drives signal to drive wire D0～D27, and receive the sensing signal of sense wire S0～S14 in regular turn, and then change the zone of on contact panel 101, being touched with the interpretation user according to the appearance value that the sensing signal that receives calculates each electric capacity on the sensing electrode array.
In the design of traditional touch sensing device 10, often all be that contact panel 101 specifications (as: panel size, sensing resolution etc.) that demand is arranged earlier afterwards, arrange in pairs or groups by the controller of selecting again to be fit to 102.Yet, controller 102 has specific standard when design, that is to say, driving pin position the D0 '～D27 ' of controller 102 namely is changeless after design is finished with the position, pin position of sensing pin position S0 '～S14 ' and quantity, therefore each controller is difficult for being applicable to the contact panel of different size, and forms more application restriction.To this, the manufacturer of controller tends to reserve as much as possible sensing pin position and/or drives the pin position when design, in the hope of supporting the contact panel of more multiple different size.For example, Figure 1A The controller 102 can be supported the contact panel of maximum 16 sense wires and 32 drive wires.
Though the design of above-mentioned reservation more sensing pin position and/or driving pin position can allow controller have preferable application, but all in all, the position, pin position of the sensing pin position of controller and driving pin position and quantity are still fixing, are therefore using still deficiency of elasticity.Please refer to Figure 1B, Figure 1B is the functional block diagram of another kind of traditional touch sensing device, is used for illustrating that controller can't support a kind of practical situation of contact panel.Controller 112 among Figure 1B has 16 sensing pin position S0 '～S15 ' and 32 driving pin position D0 '～D31 ', but contact panel 111 has 18 sense wire S0～S17 and 27 drive wire D0～D26.Thus, controller 112 will form all sense wire S0～S17 that sensing pin position S0 '～S15 ' is unable to cope with contact panel 111, and drives pin position D0 '～D31 ' more than the situation that can't be suitable for of all drive wire D0～D26 of contact panel 111.
Moreover, because the sensing pin position of traditional controller fixes with driving the pin bit position, therefore during the circuit layout of the lead between the drive wire that carries out controller and contact panel and sense wire, often have the certain difficulty degree.Please refer to Fig. 1 C, Fig. 1 C is the functional block diagram of another kind of traditional touch sensing device.Shown in Fig. 1 C, sense wire S0～the S7 of contact panel 121 and S8～S14 lay respectively at upper right side and the lower-left side of contact panel 121, and for corresponding sensing pin position the S0 '～S7 ' and sensing pin position S8 '～S14 ' that is connected in controller 122 respectively, will form the layout situation of cabling of intersecting in order to the lead that connects sensing pin position S0 '～S14 ' and sense wire S0～S14 on circuit board or the soft board.So, just can only solve the situation of cabling of intersecting during design by the laminate that increases circuit board or soft board.But because the signal that transmits is the small anaiog signal of semaphore in the lead, therefore the lead that intersects still interferes with each other easily, and causes the electric property of whole touch sensing device to descend, even has the situation that makes a mistake when serious.
Summary of the invention
The object of the present invention is to provide a kind of touch sensing device and programmable controller thereof, described programmable controller can allow the deviser of touch sensing device set many drive wires of a plurality of general pin position of programmable controller and contact panel and the corresponding relation between many sense wires, allow the programmable controller can set each general pin position flexibly for driving pin position or sensing pin position, with the contact panel in response to different size, and effectively optimize circuit layout between contact panel and the programmable controller.
The invention provides a kind of programmable controller, wherein said programmable controller comprises a plurality of general pin position, control circuit and a plurality of switch unit.The corresponding relation of control circuit in order to define between many sense wires recording described a plurality of general pin position and a contact panel and many drive wires.A plurality of switch units are corresponding to connect a plurality of general pin position, and receives the switching signal that described control circuit produces according to described corresponding relation respectively.Each switch unit optionally is connected to sensing circuit or driving circuit according to the switching signal that receives with the general pin position of the corresponding connection of institute.
According to above-mentioned design, wherein said touch sensing device comprises contact panel and above-mentioned programmable controller.Contact panel has many sense wires and many drive wires.
According to above-mentioned design, described control circuit is further controlled the switching running of a plurality of switch units by the generation sequential of control switching signal.
According to above-mentioned design, control the general pin position that arbitrary correspondence is connected in drive wire when control circuit and optionally be connected to driving circuit, when transmitting driving signal that driving circuit produces to the corresponding drive wire that connects, control circuit is further controlled the general pin position that all correspondences are connected in sense wire in regular turn and optionally is connected to sensing circuit, is sent to sensing circuit to transmit the sensing signal that the corresponding sense wire coupling that connects produces.
According to above-mentioned design, described control circuit is further controlled two input ends that switch unit that two correspondences are connected in sense wire optionally is connected to sensing circuit simultaneously.
According to above-mentioned design, each switch unit further optionally is connected to reference voltage end or high impedance end according to the switching signal that receives with the general pin position of the corresponding connection of institute.
According to above-mentioned design, each switch unit adopts the design of combination, selector switch or the multiplexer of a plurality of change-over switches.
According to above-mentioned design, described programmable controller is for integrating the single-chip system of control circuit, a plurality of switch unit, driving circuit and sensing circuit.
According to above-mentioned design, described control circuit comprises storage unit, read-write control unit and signal generation unit.Read-write control unit connects storage unit, is used for receiving described corresponding relation, and described corresponding relation is recorded in described storage unit.The signal generation unit connects described read-write control unit, obtains described corresponding relation by described read-write control unit from described storage unit, and produces described a plurality of switching signal according to described corresponding relation.
In sum, the programmable controller of touch sensing device that the embodiment of the invention provides can increase the application elasticity of programmable controller in response to the contact panel of all size, and promotes the utilization factor of all general pin positions of programmable controller.In addition, more can suitably set the function (driving or sensing) of each general pin position of programmable controller according to the position, general pin position that goes out line position and programmable controller of the sense wire of actual contact panel and drive wire, use the puzzlement of elimination circuit layout on circuit board or soft board and reduce degree of difficulty, allow on circuit board or the soft board and to be avoided occurring intersecting the situation of cabling in order to connect contact panel and the lead between the programmable controller.
For enabling further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, but these explanations with appended graphic only be that the present invention is described, but not interest field of the present invention is done any restriction.
Description of drawings
Figure 1A is a kind of functional block diagram of traditional touch sensing device.
Figure 1B is the functional block diagram of another kind of traditional touch sensing device.
Fig. 1 C is the functional block diagram of another kind of traditional touch sensing device.
Fig. 2 is the functional block diagram of the touch sensing device that provides of the embodiment of the invention.
Fig. 3 A is the details circuit diagram of the touch sensing device that provides of the embodiment of the invention.
Fig. 3 B is the details circuit diagram of the touch sensing device that provides of another embodiment of the present invention.
Fig. 4 is the functional block diagram of the control circuit of the embodiment of the invention.
Fig. 5 A is the synoptic diagram of the corresponding relation that records of the storage unit of the embodiment of the invention.
Fig. 5 B is the synoptic diagram of the corresponding relation that records of the storage unit of another embodiment of the present invention.
Wherein, description of reference numerals is as follows:
10,11,12,20: touch sensing device
101,111,121,201: contact panel
102,112,122: controller
202: the programmable controller
2021,2021 ': sensing circuit
2022,2022 ', 40: control circuit
2023: driving circuit
41: storage unit
42: read-write control unit
43: the signal generation unit
D0～D39: drive wire
D0 '～D31 ': drive the pin position
I+, I-: input end
G0～G63: general pin position
S0～S21: sense wire
S0 '～S15 ': sensing pin position
SW0～SW63, SW0 '～SW63 ': switch unit
Vref: reference voltage end
Embodiment
Please refer to Fig. 2, Fig. 2 is the functional block diagram of the touch sensing device that provides of the embodiment of the invention.Touch sensing device 20 comprises contact panel 201 and programmable controller 202.The contact panel 201 of present embodiment comprises many sense wire S0～S21 and drive wire D0～D39, wherein between sense wire S0～S21 and the drive wire D0～D39 is to be electrically insulated and to hand over more to form a sensing electrode array, so that the function of touch sensing to be provided.In addition, be different from traditional controller, programmable controller 202 comprises a plurality of general pin position G0～G63, allows the deviser of touch sensing device 20 be able to define voluntarily according to the circuit layout that meets the cabling rule track lengths restriction etc. of cabling, sense wire and drive wire (as: avoid producing intersect) between contact panel 201 and the programmable controller 202 each pin bit function (driving or sensing) of the general pin position G0～G63 of programmable controller 202.In other words, arbitrary general pin position G0～G63 can be sensing pin position with deviser's definition or drive the pin position.
In the embodiment of Fig. 2, considering circuit layout according to the specification of contact panel 201 (as: panel size, ratio, sensing resolution, drive wire and sense wire go out line position etc.), to avoid producing under the situation of intersection cabling, sense wire S0～S10, the S11～S21 of present embodiment is connected to general pin position G0～G10, G61～G51 by lead respectively, and drive wire D0～D39 is connected to general pin position G11～G50 by lead respectively.To this, the deviser just can further define each pin position effect of the general pin position G0～G63 of programmable controller 202 according to the circuit layout of finishing, general pin position G0～G10, G61～G51 are defined as sensing pin position in order to the sensing signal that receives sense wire S0～S10, S11～S21 respectively, drive the driving pin position that signal is given drive wire D0～D39 and general pin position G11～G50 is defined as respectively in order to transmit.
In addition, because present embodiment is for fear of the situation that produces the intersection cabling, the general pin position G0～G63 of programmable controller 202 is non-to come corresponding sense wire S0～S21 and the drive wire D0～D39 that connects contact panel 201 according to number order, therefore programmable controller 202 more can further be managed the running of all general pin position G0～G63 according to the corresponding relation that defines between general pin position G0～G63 and sense wire S0～S21 and the drive wire D0～D39, to reach sense wire S0～S21 of controlling contact panel 201 effectively and the effect of drive wire D0～D39.What deserves to be explained is that corresponding relation can for example be that the mode design with comparison list presents, yet the presentation mode of corresponding relation is not in order to limit the present invention.
In actual operation, programmable controller 202 can transmit the driving signal to the corresponding drive wire D0～D39 that connects by being defined as the general pin position G11～G50 that drives the pin position in regular turn, and transmitting when driving signal to the corresponding drive wire D0 that connects～D39 by arbitrary general pin position G11～G50 that drives the pin position that is defined as, programmable controller 202 is to receive sensing signal by all general pin position G0～G10, G61～G51 that are defined as sensing pin position in regular turn in addition.So, programmable controller 202 is able to receive at each drive wire D0～D39 respectively the sensing signal of all sense wire S0～S21, and then finish the scanning of whole sensing electrode array, and judge the zone that the user touches according to all received sensing signals on contact panel 201.Subsidiary one carry be, the order of programmable controller 202 scanning sensing electrode arrays is limited by present embodiment, programmable controller 202 more can transmit by the order of user's definition and drive signal and reception sensing signal.
In addition, compared to the driving pin number amount of traditional controller and sensing pin number amount must be respectively greater than number of drive lines and the sense wire quantity of contact panel, the programmable controller 202 of present embodiment has bigger elasticity, can be applicable to the quantity summation of any drive wire and sense wire smaller or equal to the contact panel of the general pin number amount of programmable controller 202.For example, the programmable controller 202 of present embodiment goes for the quantity summation of drive wire and sense wire at 64 contact panels with interior all size.
For circuit framework and the operation situation that further specifies touch sensing device 20, please the framework based on Fig. 2 comes with reference to Fig. 3 A, Fig. 3 A is the details circuit diagram of the touch sensing device that provides of the embodiment of the invention, and Fig. 3 A only local four drive wire D0～D3 and four sense wire S0～S3 that show contact panel 201 hands over the part sensing electrode array that more forms, and wherein the crossover point of each drive wire D0～D3 and each sense wire S0～S3 is that coupling forms an electric capacity.
On actual design, control circuit 2022 produces switching signal G0S[0:2 except the foundation corresponding relation]～G63S[0:2], more can further control switching signal G0S[0:2]～G63S[0:2] the generation sequential, the running that connects with the switching of control switch unit SW0～SW63.In other words, exist under the condition of corresponding relation, control circuit 2022 is able to control transmission according to the required scanning sequency of actual design and drives signal to the order that is defined as the general pin position G11～G50 that drives the pin position and the general pin position G0～G10, the G61 that are customized for sensing pin position～G51 reception sensing signal.
For instance, control circuit 2022 is controlled the corresponding switch unit SW11～SW50 that is connected in drive wire D0～D39 one by one and optionally is connected to driving circuit 2023, in order to transmit the extremely corresponding drive wire D0～D39 that connects of driving signal that driving circuit 2023 produces in regular turn, and when the switch unit SW11～SW50 that is connected in drive wire D0～D39 when the arbitrary correspondence of control circuit 2022 control optionally is connected to driving circuit 2023, control circuit 2022 is to control switch unit SW0～SW10 that all correspondences are connected in sense wire S0～S21 in regular turn in addition, S61～S51 optionally is connected to sensing circuit 2021, to sensing circuit 2021, allow sensing circuit 2021 be able to receive at a drive wire D0～D39 of present driving the sensing signal of all sense wire S0～S21 with the sensing signal that transmits the described corresponding sense wire S0～S21 that connects in regular turn.
What deserves to be mentioned is that in the embodiment of Fig. 3 A, sensing circuit 2021 is to use the mode of single-ended sensing to obtain sensing signal.Therefore in this embodiment, switch unit SW0～SW63 is respectively the design of adopting the combination of three change-over switches, and respectively according to switching signal G0S[0:2]～G63S[0:2] signal value the general pin position G0～G63 of the corresponding connection of institute optionally is connected to driving circuit 2023, sensing circuit 2021 or reference voltage end Vref.Wherein, it is that all switch unit SW0～SW63 of control are connected in reference voltage end Vref that programmable controller 202 is preset, allow switch unit SW0～SW63 when not being connected in sensing circuit 2021 or driving circuit 2022 by control, all corresponding general pin position G0～G63 that connect all can maintain a magnitude of voltage, avoid correspondence to be connected in that drive wire D0～D39 of switch unit SW0～SW63 and sense wire S0～S21 are interfered easily and the state that forms unsteady (Floating).
In the present embodiment, embodiment corresponding to Fig. 2, in Fig. 3 A, switch unit SW0～SW3 (or general pin position G0～G3) corresponding respectively connects sense wire S0～S3, and switch unit SW11～SW14 (or general pin position G11～G14) is the corresponding drive wire D0～D3 that connects respectively.In addition, switching signal G0S[0:2]～G63S[0:2] be the signal of three bits (3bits).By way of example, when signal value=[001], represent selectivity and be connected to driving circuit 2023; When signal value=[010], represent selectivity and be connected to sensing circuit 2021; And when signal value=[100], represent selectivity and be connected to reference voltage end.Yet, it should be noted that embodiment and the switching signal G0S[0:2 of switch unit SW0～SW63]～G63S[0:2] type all non-in order to limit the present invention.In another embodiment, each switch unit SW0～SW63 can also adopt the design of a multiplexer or a selector switch.
Please refer to Fig. 3 B, Fig. 3 B is the details circuit diagram of the touch sensing device that provides of another embodiment of the present invention.Roughly the embodiment with Fig. 3 A is identical for the framework of the embodiment of Fig. 3 B and running, difference be in, the sensing circuit 2021 ' of Fig. 3 B is to use the mode of differential sensing to obtain sensing signal, and in other words the sensing circuit 2021 ' of present embodiment is to adopt twin-channel design and have two input end I+, I-.In addition, each switch unit SW0 '～SW63 ' can for example be the design of adopting the combination of four change-over switches, and wherein four change-over switches are respectively two input end I+, I-and the reference voltage end Vref that is connected in driving circuit 2023, sensing circuit 2021 '.Relative, the switching signal G0S[0:3 that control circuit 2022 ' produces]～G63S[0:3] then be the signal that is designed to nibble (4bits).For instance, when signal value=[0001], represent selectivity and be connected to driving circuit 2023; When signal value=[0010], represent the input end I+ that selectivity is connected to sensing circuit 2021 '; When signal value=[0100], represent the input end I-that selectivity is connected to sensing circuit 2021 '; And when signal value=[1000], represent selectivity and be connected to reference voltage end Vref.
Thus, present embodiment is in running, when switch unit the SW11 '～SW50 ' that is connected in drive wire D0～D39 when the arbitrary correspondence of control circuit 2022 ' control optionally is connected to driving circuit 2023, control circuit 2022 ' is controlled switch unit SW0 '～SW10 ' that all correspondences are connected in sense wire S0～S21 in regular turn, on S61 '～S51 ', be to control switch unit SW0 '～SW10 ' that two correspondences are connected in sense wire S0～S21 simultaneously at every turn, S61 '～S51 ' optionally is connected to two input end I+ of sensing circuit 2021 ' respectively, I-is to carry out differential sensing.
Please follow with reference to Fig. 4, Fig. 4 is the functional block diagram of the control circuit of the embodiment of the invention.Control circuit 40 can be used for realizing for example control circuit 2022,2022 ' of Fig. 3 A and Fig. 3 B.Control circuit 40 comprises storage unit 41, read-write control unit 42 and signal generation unit 43.Read-write control unit 42 connects storage unit 41, is used for receiving the deviser defined general pin position of touch sensing device and the corresponding relation between sense wire and the drive wire, and corresponding relation is recorded in storage unit 41.Signal generation unit 43 connects read-write control unit 42, in order to the corresponding relation that obtains by read-write control unit 42 to record in the storage unit 41, and according to described corresponding relation generation switching signal G0S～G63S, with the running of all switch unit SW0～SW63, SW0 '～SW63 ' of control chart 3A and Fig. 3 B, and then reach the function of all general pin position G0～G63 of management.
Be noted that switching signal G0S～G63S can be different according to the switch unit of actual design.For instance, when switch unit was switch unit SW0～S63 as Fig. 3 A, then switching signal G0S～G63S was the switching signal G0S[0:2 as Fig. 3 A]～G63S[0:2]; When switch unit was switch unit SW0 '～S63 ' as Fig. 3 B, then switching signal G0S～G63S was the switching signal G0S[0:3 as Fig. 3 B]～G63S[0:3].
Then, please accordingly with reference to Fig. 2, Fig. 4 and Fig. 5 A, Fig. 5 A is the synoptic diagram of the corresponding relation that records of the storage unit of the embodiment of the invention.The synoptic diagram of Fig. 5 A is the corresponding relation that illustrates that drive wire D0～D39 of utilizing contact panel 201 and sense wire S0～S21 come the general pin position G0～G61 of corresponding record programmable controller 202 for benchmark.In design, storage unit 41 can be apprised of contact panel 201 and have what drive wire D0～D39 and sense wire S0～S21, to be used for putting the information of number of drive lines and sense wire quantity.The working storage of address 0x0000～0x0015 that general pin position G0～G10 that sense wire S0～S21 connects, G61～G51 are recorded in storage unit 41 in regular turn, and general pin position G11～G50 of connecting of drive wire D0～D39 is recorded in the working storage of the address 0x0016～0x003D of storage unit 41 in regular turn.For instance, in Fig. 5 A, the general pin position that sense wire S21 connects is G51, and therefore the numerical value of general pin position G51 can be recorded in the working storage of address 0x0015; And the general pin position that drive wire D38 connects is G49, and therefore the numerical value of general pin position G49 can be recorded in the working storage of address 0x003C.
Please refer to Fig. 2, Fig. 4 and Fig. 5 B, Fig. 5 B is the synoptic diagram of the corresponding relation that records of the storage unit of another embodiment of the present invention.The embodiment that is different from Fig. 5 A, the synoptic diagram of Fig. 5 B illustrate that the general pin position G0～G63 that utilizes programmable controller 202 comes the drive wire D0～D39 of corresponding record contact panel 201 and the corresponding relation of sense wire S0～S21 for benchmark.Storage unit 41 can be used for putting the information of the general pin number amount of programmable controller 202.Moreover the working storage of the address 0x0000～0x003F of storage unit 41 is the wiring state (as: connect sense wire S0～S21, connect drive wire D0～D39 or empty wiring) that records general pin position G0～G63 in regular turn.For instance, in Fig. 5 B, general pin position G51 is the corresponding sense wire S21 that connects, so the numerical value of sense wire S21 can be recorded in the working storage of address 0x0033; And general pin position G49 is corresponding connection drive wire D38, so the numerical value of drive wire D38 can be recorded in the working storage of address 0x0031.
Need to prove that the recording mode of the corresponding relation that above-mentioned Fig. 5 A and Fig. 5 B disclose not is in order to limiting the present invention, and the capacity of storage unit 41 can be relevant with numerical value such as sense wire quantity, number of drive lines and general pin number amounts.
In addition, what deserves to be mentioned is that the programmable controller in above-described embodiment is the design of adopting the single-chip system, with direct integration driving circuit, sensing circuit, control circuit and a plurality of switch unit.Yet in other kinds embodiment, driving circuit, sensing circuit may not can be integrated in the same wafer with a plurality of switch units, control circuit.In other words, in other kinds embodiment, the programmable controller may only comprise a plurality of switch units, control circuit, and driving circuit, sensing circuit are to be independent of outside the programmable controller.
In sum, the embodiment of the invention can increase the application elasticity of programmable controller, and promotes the utilization factor of all general pin positions of programmable controller.The deviser of touch sensing device can suitably set the function of each general pin position of programmable controller according to the position, general pin position that goes out line position and programmable controller of the sense wire of actual contact panel and drive wire, and and then the corresponding relation between general pin position and sense wire and the drive wire is recorded in the programmable controller.So, the programmable controller can will drive signal according to this corresponding relation control driving circuit and be sent to the order of drive wire and the order that sensing circuit self-induction survey line receives sensing signal.In addition, the function of the self-defined general pin position that the programmable controller provides, more can eliminate the puzzlement of circuit layout on circuit board or the soft board and reduce degree of difficulty, allow on circuit board or the soft board to be had the circuit layout that meets cabling specification (as: avoid appearance intersect cabling) in order to connect contact panel and lead between the programmable controller.
The above only is embodiments of the invention, and it is not in order to limit to claim of the present invention.
Claims (15)
1. a programmable controller is characterized in that, comprising:
A plurality of general pin position;
One control circuit is in order to a corresponding relation that defines between many sense wires recording those general pin positions and a contact panel and many drive wires; And
A plurality of switch units, corresponding those general pin positions that connect, and receive this control circuit respectively and one switch signal according to what this corresponding relation produced, wherein each switch unit optionally is connected to a sensing circuit or one drive circuit according to this switching signal that receives with the general pin position of the corresponding connection of institute.
2. programmable controller as claimed in claim 1 is characterized in that, this control circuit is further controlled the switching running of those switch units by the generation sequential of controlling this switching signal.
3. programmable controller as claimed in claim 2, it is characterized in that, control the switch unit that arbitrary correspondence is connected in drive wire when this control circuit and optionally be connected to this driving circuit, with transmit that this driving circuit produces one when driving the drive wire that signal to this correspondence connects, this control circuit is further controlled the switch unit that all correspondences are connected in sense wire in regular turn and optionally is connected to this sensing circuit, to transmit a sensing signal that sense wire coupling that this correspondence connects produces to this sensing circuit.
4. programmable controller as claimed in claim 3 is characterized in that, this control circuit is further controlled two input ends that switch unit that two correspondences are connected in sense wire optionally is connected to this sensing circuit simultaneously.
5. programmable controller as claimed in claim 1 is characterized in that, each switch unit further optionally is connected to a reference voltage end or a high impedance end according to this switching signal of receiving with this general pin position of the corresponding connection of institute.
6. programmable controller as claimed in claim 1 is characterized in that, each switch unit adopts the design of combination, a selector switch or a multiplexer of a plurality of change-over switches.
7. programmable controller as claimed in claim 1 is characterized in that, described control circuit comprises:
One storage unit;
One read-write control unit connects this storage unit, is used for receiving this corresponding relation, and this corresponding relation is recorded in this storage unit; And
One signal generation unit connects this read-write control unit, and obtains this corresponding relation of this unit records by this read-write control unit, and produces those switching signals according to this corresponding relation.
8. a touch sensing device is characterized in that, comprising:
One contact panel comprises many sense wires and many drive wires;
One programmable controller comprises;
A plurality of general pin position;
One control circuit is in order to a corresponding relation that defines between those sense wires of recording those general pin positions and this contact panel and those drive wires; And
A plurality of switch units, corresponding those general pin positions that connect, and receive this control circuit respectively and one switch signal according to what this corresponding relation produced, wherein each switch unit optionally is connected to a sensing circuit or one drive circuit according to this switching signal that receives with the general pin position of the corresponding connection of institute.
9. touch sensing device as claimed in claim 8 is characterized in that, described control circuit is further controlled the switching running of those switch units by the generation sequential of controlling this switching signal.
10. touch sensing device as claimed in claim 9, it is characterized in that, control the general pin position that arbitrary correspondence is connected in drive wire when this control circuit and optionally be connected to this driving circuit, with transmit that this driving circuit produces one when driving the drive wire that signal to this correspondence connects, this control circuit is further controlled the general pin position that all correspondences are connected in sense wire in regular turn and optionally is connected to this sensing circuit, is sent to this sensing circuit to transmit the sensing signal that sense wire coupling that this correspondence connects produces.
11. touch sensing device as claimed in claim 10 is characterized in that, this control circuit is further controlled two input ends that switch unit that two correspondences are connected in sense wire optionally is connected to this sensing circuit simultaneously.
12. touch sensing device as claimed in claim 8 is characterized in that, each switch unit further optionally is connected to a reference voltage end or a high impedance end according to this switching signal of receiving with this general pin position of the corresponding connection of institute.
13. touch sensing device as claimed in claim 8 is characterized in that, each switch unit adopts the design of combination, a selector switch or a multiplexer of a plurality of change-over switches.
14. touch sensing device as claimed in claim 8 is characterized in that, this programmable controller is the single-chip system of this control circuit of integration, those switch units, this driving circuit and this sensing circuit.
15. touch sensing device as claimed in claim 8 is characterized in that, this control circuit comprises:
One storage unit;
One read-write control unit connects this storage unit, is used for receiving this corresponding relation, and this corresponding relation is recorded in this storage unit; And
One signal generation unit connects this read-write control unit, and obtains this corresponding relation of this unit records by this read-write control unit, and produces those switching signals according to this corresponding relation.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110461261XA CN103186301A (en) | 2011-12-30 | 2011-12-30 | Touch-control sensing device and programmable controller |
| TW101146799A TW201327313A (en) | 2011-12-30 | 2012-12-12 | A touch sensing device and a programmable controller thereof |
| TW101224029U TWM454583U (en) | 2011-12-30 | 2012-12-12 | A touch sensing device and a programmable controller thereof |
| KR1020120150989A KR101476510B1 (en) | 2011-12-30 | 2012-12-21 | A touch sensing device and a programmable controller thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110461261XA CN103186301A (en) | 2011-12-30 | 2011-12-30 | Touch-control sensing device and programmable controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103186301A true CN103186301A (en) | 2013-07-03 |
Family
ID=48677488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110461261XA Pending CN103186301A (en) | 2011-12-30 | 2011-12-30 | Touch-control sensing device and programmable controller |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101476510B1 (en) |
| CN (1) | CN103186301A (en) |
| TW (2) | TW201327313A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653105A (en) * | 2014-11-14 | 2016-06-08 | 上海东软载波微电子有限公司 | Touch control chip and data acquisition method thereof |
| CN107509069A (en) * | 2017-09-29 | 2017-12-22 | 歌尔科技有限公司 | Three-dimensional image acquisition device and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3093839A1 (en) * | 2015-05-13 | 2016-11-16 | Himax Technologies Limited | In-cell touch screen and a method of driving the same |
| CN111565036A (en) * | 2020-06-12 | 2020-08-21 | 泰力实业有限公司 | Sliding touch control lamp switch |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201327313A (en) | 2013-07-01 |
| KR20130079210A (en) | 2013-07-10 |
| KR101476510B1 (en) | 2014-12-24 |
| TWM454583U (en) | 2013-06-01 |
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