CN106200859B - The electricity saver of condenser type index device - Google Patents
The electricity saver of condenser type index device Download PDFInfo
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- CN106200859B CN106200859B CN201510232453.1A CN201510232453A CN106200859B CN 106200859 B CN106200859 B CN 106200859B CN 201510232453 A CN201510232453 A CN 201510232453A CN 106200859 B CN106200859 B CN 106200859B
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Abstract
The invention discloses a kind of electricity savers of condenser type index device, include amplifier circuit, first and second comparator circuit, controller and switch.First comparator circuit generates the first level and receives amplification driving signal, and the second comparator generates the second level circuit and receives amplification driving signal, wherein the first level is higher than the second level.The electricity saver of condenser type index device of the present invention using amplification driving signal level whether be higher than the first level decide whether open switch and output signal is provided.
Description
Technical field
The invention relates to a kind of electricity savers, in particular to a kind of electricity saver of condenser type index device.
Background technique
Capacitance touching control input technology is then widely used in touch control type screen, its advantage is that hand or capacitance pen can be used
Input operation is carried out, has multi-point touch control function if the hand with user is operated, and change using gesture and carry out
Diversified operation can produce a variety of applications according to distinctive respective action.User capacitance pen can be used to operate touch-control simultaneously
Formula screen interface, with executing application or is write.When capacitance pen is utilized near to or in contact with touch panel and induction electrode
Capacitive coupling is generated, touch panel is enable to detect capacitance pen coordinate.In order to generate capacitive coupling, electricity with touch panel induction electrode
Hold pen in addition to the driving signal for receiving touch panel induction electrode, it is necessary to output signal to induction electrode so that touch panel sense
Answer electrode that can detect capacitance pen coordinate.In order to maintain to operate, capacitance pen must continue to receive driving signal and the output of induction electrode
Signal, but continue output signal sometimes and not required that they be so, and continue uninterruptedly with high voltage output signal also very consumption electricity
Energy.Therefore the present invention proposes that a kind of electricity saver of condenser type index device can according to preset output with conditions high voltage signal
The purpose of power saving is reached in the consumption for saving unnecessary electric power.
Summary of the invention
It is an object of the present invention to propose a kind of electricity saver of condenser type index device, make condenser type index device only defeated
Ability output signal when entering driving signal level higher than preset signal level, when input drive signal level is lower than preset signal
When level, condenser type index device not output signal, to achieve the purpose that condenser type index device power saving.
According to above-mentioned purpose, the object of the invention to solve the technical problems adopts the following technical solutions to realize
's.The present invention proposes a kind of electricity saver of condenser type index device, includes amplifier circuit, first and second comparator electricity
Road, controller and switch.Amplifier circuit receives driving signal and generates amplification driving signal.First comparator circuit generates the
One level simultaneously receives amplification driving signal, and first comparator circuit compares amplification driving signal and the first level to export the first ratio
Compared with device circuit signal.Controller receives first comparator circuit signal and o controller signal.Switch decides whether by high electricity
Pressure output provides output signal.Second comparator generates the second level circuit and receives amplification driving signal and controller signals,
Second comparator circuit compares amplification driving signal and the second level and controller signals to export the second comparator circuit signal
To decide whether to open switch, wherein the first level is higher than the second level.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
The electricity saver of condenser type index device above-mentioned, wherein the controller includes number or analog switch element.
The electricity saver of condenser type index device above-mentioned, wherein the switch element includes metal-oxide semiconductor (MOS) member
Part.
The electricity saver of condenser type index device above-mentioned, wherein the switch includes transistor unit.
The electricity saver of condenser type index device above-mentioned further includes driving signal level generation circuit to provide the driving
Signal level.
The object of the invention to solve the technical problems also uses following technical scheme to realize.In another reality of the invention
It applies in example, the electricity saver of condenser type index device proposed by the present invention, includes first and second amplifier circuit, first and the
Two comparator circuits, controller and switch.First and second amplifier circuit receives driving signal and generates amplification driving signal.
First comparator circuit generates the first level and simultaneously receives amplification driving signal, first comparator circuit compare amplification driving signal with
First level is to export first comparator circuit signal.Controller receives first comparator circuit signal and o controller letter
Number, to decide whether to open switch.Second comparator generates the second level circuit and receives amplification driving signal, the second comparator
Circuit compares amplification driving signal and the second level to export the second comparator circuit signal to switching, wherein the first level is higher than
Second level.This embodiment decides whether to open using controller according to the first comparator circuit signal of first comparator circuit
It switchs and output signal is provided.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
The electricity saver of condenser type index device above-mentioned further includes driving signal level generation circuit to provide the driving
Signal level.
In addition the object of the invention to solve the technical problems is realized using following technical scheme again.It is of the invention again
In one embodiment, the electricity saver of condenser type index device proposed by the present invention, comprising amplifier circuit, first and second compares
Device circuit, controller and switch.Amplifier circuit receives driving signal and generates amplification driving signal.First comparator circuit produces
Raw first level simultaneously receives amplification driving signal, and first comparator circuit compares amplification driving signal and the first level to export the
One comparator circuit signal.Second comparator generates the second level circuit and receives amplification driving signal, the second comparator circuit
Compare amplification driving signal and the second level to export the second comparator circuit signal, wherein the first level is higher than the second level.
Switch, which decides whether to be exported by high voltage, provides output signal.Controller receives first comparator circuit signal and the second comparator
Circuit signal and o controller signal decide whether to open switch to switch.
The present invention has obvious advantages and beneficial effects compared with the existing technology.By above-mentioned technical proposal, the present invention
Have at least the following advantages: the present invention decides whether to open switch simultaneously using whether amplification driving signal level is higher than the first level
Output signal is provided.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Figure 1A is the block diagram of the electricity saver of one embodiment of the invention condenser type index device.
Figure 1B is the block diagram of the electricity saver of another embodiment of the present invention condenser type index device.
Fig. 1 C is the block diagram of the electricity saver of another embodiment condenser type index device of the invention.
Fig. 2A is the circuit diagram of the electricity saver of one embodiment of the invention condenser type index device.
Fig. 2 B is the circuit diagram of the electricity saver of another embodiment of the present invention condenser type index device.
[main element symbol description]
11: 12: the first amplifier circuit of amplifier circuit
13: the second amplifier circuits 14: first comparator circuit
16: controller 17: switch
18: the second comparator circuits 19: switch
21: high voltage output
Specific embodiment
Some embodiments of the present invention will be described in as follows.However, the present invention can also be extensive other than described below
Ground is implemented in other embodiments, and the scope of the present invention is not limited by embodiment, the scope of the patents being subject to later.
Furthermore to provide clearer description and being more readily understood the present invention, each section is not drawn according to its relative size in schema,
Certain sizes are exaggerated compared with other scale dependents；Incoherent detail section is not also drawn completely, in the hope of schema
Succinctly.
In an embodiment of the present invention, belong to important feature of the invention about non-in condenser type index device and be ability
The technology contents that there is general technology person can understand and be implemented in domain, will not be described in detail herein.For example, with
It is lower to be that this field has in general technology person can understand and be implemented about condenser type index device and touch panel
Hold.Condenser type index device includes conductive pen body and conductive pen point, and touch panel then includes with multiple conductive strip electrodes
Capacitive sensing array, wherein conductive strip electrode includes transmission electrode (transmit electrode, Tx) and receiving electrode
(receive electrode,Rx).When using condenser type index device on touch panel, conductive pen point is close or connects
The capacitive sensing array of touch for panel, the conductive pen point of condenser type index device by with condenser type index device position
Conductive strip electrode generates capacitive coupling, and the conductive strip electrode of condenser type index device position then provides driving signal.Capacitor
Output signal to the conductive bar of condenser type index device position after formula index device reception driving signal again through signal processing
Electrode.Generate capacitive coupling by conductive pen point and conductive strip electrode, output signal conductive strip electrode transmission electrode with connect
It receives when electrode is scanned and is detected, determine condenser type index device position coordinate to calculate.Capacitive sensing array can
Use charge accumulation or any other suitable capacitive sensing mode.
Figure 1A is the block diagram of the electricity saver of one embodiment of the invention condenser type index device.The capacitor of this embodiment
The electricity saver of formula index device includes amplifier circuit 11, first comparator circuit 14, controller 16, the second comparator circuit
18, switch 17 and high voltage output 21.When the conductive strip electrode of condenser type index device and touch panel capacitive sensing array produces
When raw capacitive coupling, condenser type index device is the driving signal for receiving conductive strip electrode.Driving signal is first through amplifier electricity
Road 11 amplifies.Due to driving signal may with ambient noise, driving signal receive after through amplifier circuit 11 into
Before row amplification, it must generally first pass through filtering and level is provided.The driving signal for being then passed through amplification, filtering and offer level is sent to
First comparator circuit 14 and the second comparator circuit 18, wherein first comparator circuit 14 is for comparing input drive signal standard
Position and the first level, and the second comparator circuit 18 is then for comparing input drive signal level and the second level and a controller
Signal level.First level is higher than the second level, i.e. the first level is compared with high levle, and the second level is compared with low level or general
Level.First comparator circuit 14 and the first level voltage of the second comparator circuit 18 are set with the second visual demand of level voltage
It is fixed, to achieve the purpose that condenser type index device power saving.When the input drive signal through amplification, filtering and offer level is through first
After comparator circuit 14 is compared with the first level, first comparator circuit 14 exports first comparator circuit signal to controller
16.Controller 16 is according to first comparator circuit signal o controller signal to the second comparator circuit 18.Second comparator
Circuit 18 compares the input drive signal from amplifier circuit 11 compared with the second level and controller signals are to export second
Device circuit signal, to decide whether to open switch 17 and provide output signal by high voltage output 21.Condenser type index device
Transmission electrode and receiving electrode of the output signal through scanning conductive strip electrode keep conductive pen point and condenser type index device institute in place
The conductive strip electrode set generates capacitive coupling to generate detection signal, determines that condenser type index device position is sat to calculate
Mark.
When input drive signal level be lower than the first level, will make the second comparator circuit 18 compare input drive signal with
17 closed state of switch is maintained after second level and controller signals, keeps output signal defeated through the second comparator circuit 18
Out.On the contrary, the second comparator circuit 18 will be made to compare input driving letter when input drive signal level is higher than the first level
Number with export the second comparator circuit signal after the second level and controller signals, to open switch 17, make output signal by height
Voltage output 21 exports.Therefore only when input drive signal level is higher than the first level, condenser type index device can just be exported
Signal, to achieve the purpose that condenser type index device power saving.
Figure 1B is the block diagram of the electricity saver of another embodiment of the present invention condenser type index device.The electricity of this embodiment
The electricity saver of appearance formula index device include the first amplifier circuit 12, the second amplifier circuit 13, first comparator circuit 14,
Controller 16, the second comparator circuit 18, switch 17 and high voltage output 21.With the province of condenser type index device shown in figure 1A
Electric installation is compared, this embodiment provides amplification, filtering using the first amplifier circuit 12 and the second amplifier circuit 13 and generates
Level.By the first amplifier circuit 12 and the amplification of the second amplifier circuit 13, filtering and provide the driving signal transmission of level
To first comparator circuit 14 and the second comparator circuit 18.First comparator circuit 14 has respectively with the second comparator circuit 18
There are the first level and the second level, the first level is higher than the second level.First comparator circuit 14 exports first comparator circuit
Signal is to controller 16.Controller 16 is according to first comparator circuit signal o controller signal to the second comparator circuit
18.Second comparator circuit 18 compares input drive signal from amplifier circuit 13 and the second level and controller signals are defeated
Second comparator circuit signal out, to decide whether to open switch 17 and provide output signal by high voltage output 21.
Fig. 1 C is the block diagram of the electricity saver of another embodiment condenser type index device of the invention.The electricity of this embodiment
The electricity saver of appearance formula index device include the first amplifier circuit 12, the second amplifier circuit 13, first comparator circuit 14,
Controller 16, the second comparator circuit 18, switch 19 and high voltage output 21.With the province of condenser type index device shown in Figure 1B
Electric installation is compared, this embodiment is according to the decision of the first comparator circuit signal of first comparator circuit 14 using controller 16
No unlatching switch 19 simultaneously provides output signal.By the first amplifier circuit 12 and the second amplifier circuit 13 amplification, filtering and
The driving signal for providing level is sent to first comparator circuit 14 and the second comparator circuit 18.First comparator circuit 14 with
Second comparator circuit 18 is respectively provided with the first level and the second level, and the first level is higher than the second level.First comparator electricity
Road 14 exports first comparator circuit signal to controller 16 after being compared input drive signal and the first level.Second comparator
Circuit 18 compares input drive signal and the extremely control of the second comparator circuit signal of the second level output from amplifier circuit 13
Device 16 processed.Controller 16 is according to first comparator circuit signal and the second comparator circuit signal o controller signal, with certainly
It is fixed whether to open switch 19, and output signal is provided by high voltage output 21.
When input drive signal level be lower than the first level, will make controller 16 maintain 19 closed state of switch, make to export
Signal can not be exported through the second comparator circuit 18.On the contrary, will make to control when input drive signal level is higher than the first level
Device 16 opens switch 19, makes output signal through 21 output of high voltage output.Therefore only when input drive signal level is higher than first
When level, condenser type index device just understands output signal, to achieve the purpose that condenser type index device power saving.
Fig. 2A is the circuit diagram of the electricity saver of one embodiment of the invention condenser type index device.As shown in Figure 2 A, electric
Container C53 is for filtering, and is for providing input driving by the circuit that resistor R66, R71 and R74 and capacitor C48 are formed
Signal level.It is put by what amplifier U18, capacitor C43, C46 and C49, resistor R62 and R65 and diode D7 and D8 were formed
Big device circuit is for amplifying input drive signal, and wherein diode D7 and D8 is for preventing amplifier supersaturated.By comparing
The first comparator circuit of device U25, capacitor C62 and C64, resistor R99 and R103 composition is for providing the first level simultaneously
The amplification driving signal level and the first level of comparison amplifier circuit output, and export first comparator circuit signal.Wherein
Capacitor C64, resistor R99 and R103 generate the first level.By switch element U24, capacitor C63, resistor R100 with
First comparator circuit signal generates simultaneously o controller signal to the controller circuitry of R102 composition based on the received.Switch element
U24 can be any suitable number or analog switch element, such as metal-oxide semiconductor (MOS) (MOS) element.By comparator
U23, capacitor C61, resistor R96, R97 and R98 composition the second comparator circuit be for provide the second level, and according to
Controller circuitry output controller signals with the second level compared with the amplification driving signal level that amplifier circuit exports, with
Determine whether the switch being made of transistor unit Q5 is opened so that high voltage output provides output signal.Wherein capacitor C61,
Resistor R96 and R98 generates the second level, and the first level is higher than the second level.The dress of condenser type index shown in above-mentioned Fig. 2A
The circuit diagram for the electricity saver set is only one embodiment, is not limited thereto, but can use other according to design and demand
Circuit configuration or element.
Fig. 2 B is the circuit diagram of the electricity saver of another embodiment of the present invention condenser type index device.As shown in Figure 2 B,
Unlike condenser type index device electricity saver circuit shown in Fig. 2A, condenser type index device shown in Fig. 2 B saves Denso
Circuits, which increase, provides input drive signal level circuit and amplifier circuit.Capacitor C54 is for filtering, by resistor
The circuit of R68, R70 and R75 and capacitor C51 composition is for providing input drive signal level.By amplifier circuit U17,
First amplifier circuit of capacitor C45, C47 and C50 and resistor R26 and R67 composition is for amplifying input drive signal.
Capacitor C53 is equally used for filtering, and the circuit of resistor R66, R71 and R74 and capacitor C48 composition provides input drive signal
Level.Amplifier U18, capacitor C43, C46 and C49, resistor R62 and R65 and diode D7 and D8 form the second amplifier
Circuit, diode D7 and D8 are for preventing amplifier supersaturated.Comparator U25, capacitor C62 and C64, resistor R99 with
The first comparator circuit of R103 composition provides the first level and compares the amplification driving signal standard of the second amplifier circuit output
Position and the first level, and export first comparator circuit signal.Capacitor C64, resistor R99 and R103 generate the first level,
And the controller circuitry first comparator based on the received of switch element U24, capacitor C63, resistor R100 and R102 composition
Circuit signal generates and o controller signal.Switch element U24 can be any suitable number or analog switch element, such as
Metal-oxide semiconductor (MOS) (MOS) element.The second ratio that comparator U23, capacitor C61, resistor R96, R97 and R98 are formed
The second level is provided compared with device circuit, and defeated according to the controller signals and the second level and amplifier circuit of controller circuitry output
Amplification driving signal level out compares, to determine whether the switch being made of transistor unit Q5 is opened so that high voltage exports
Output signal is provided.Capacitor C61, resistor R96 and R98 generate the second level, and the first level is higher than the second level.It is above-mentioned
The circuit diagram of the electricity saver of condenser type index device shown in Fig. 2 B is only equally one embodiment, is not limited thereto, and
It is that can use other circuit configurations or element according to design and demand.
The electricity saver of condenser type index device of the present invention keeps condenser type index device only high in input drive signal level
Ability output signal when preset signal level, condenser type index device position conductive strip electrode after scanning, electricity
The output signal of the conductive pen point of appearance formula index device and the conductive strip electrode of condenser type index device position generate capacitor
Coupling determines condenser type index device position coordinate to generate detection signal, to calculate.In this way, when input drive signal is quasi-
When position is lower than preset signal level, the conductive pen point of condenser type index device not output signal makes condenser type index device
The conductive strip electrode of conductive pen point and condenser type index device position will not generate capacitive coupling, to reach condenser type index
The purpose of device power saving.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification made to the above embodiment, all of which are still within the scope of the technical scheme of the invention.
Claims (7)
1. a kind of electricity saver of condenser type index device, it is characterised in that include:
Amplifier circuit, the amplifier circuit receive driving signal and generate amplification driving signal；
First comparator circuit, the first comparator circuit generate the first level and receive the amplification driving signal, first ratio
Compare the amplification driving signal and first level compared with device circuit to export first comparator circuit signal；
Controller, the controller receive the first comparator circuit signal and o controller signal；
Switch, which, which decides whether to be exported by high voltage, provides output signal；And
Second comparator circuit, second comparator generate the second level circuit and receive the amplification driving signal and the controller
Signal, second comparator circuit compare the amplification driving signal and second level and the controller signals to export the second ratio
Compared with device circuit signal to decide whether to open the switch, wherein first level is higher than second level.
2. the electricity saver of condenser type index device according to claim 1, it is characterised in that: wherein the controller includes
Number or analog switch element.
3. the electricity saver of condenser type index device according to claim 2, it is characterised in that: the wherein switch element packet
Containing metal oxide semiconductor element.
4. the electricity saver of condenser type index device according to claim 1, it is characterised in that: wherein the switch includes crystalline substance
Body tube elements.
5. the electricity saver of condenser type index device according to claim 1, it is characterised in that: further include driving signal standard
Position generation circuit is to provide the driving signal level.
6. a kind of electricity saver of condenser type index device, it is characterised in that include:
First amplifier circuit and the second amplifier circuit, this first receives with second amplifier circuit and driving signal and generates
Amplify driving signal；
First comparator circuit, the first comparator circuit generate the first level and receive the amplification driving signal, first ratio
Compare the amplification driving signal and first level compared with device circuit to export first comparator circuit signal；
Switch, which, which decides whether to be exported by high voltage, provides output signal；
Controller, the controller receive the first comparator circuit signal and o controller signal, are somebody's turn to do with deciding whether to open
Switch；And
Second comparator circuit, second comparator generate the second level circuit and receive the amplification driving signal, second ratio
Compare the amplification driving signal and second level compared with device circuit to export the second comparator circuit signal to the switch, wherein should
First level is higher than second level.
7. the electricity saver of condenser type index device according to claim 6, it is characterised in that: further include driving signal standard
Position generation circuit is to provide the driving signal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232453.1A CN106200859B (en) | 2015-05-08 | 2015-05-08 | The electricity saver of condenser type index device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232453.1A CN106200859B (en) | 2015-05-08 | 2015-05-08 | The electricity saver of condenser type index device |
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| Publication Number | Publication Date |
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| CN106200859A CN106200859A (en) | 2016-12-07 |
| CN106200859B true CN106200859B (en) | 2019-04-05 |
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| CN201510232453.1A Expired - Fee Related CN106200859B (en) | 2015-05-08 | 2015-05-08 | The electricity saver of condenser type index device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945387A (en) * | 2005-09-21 | 2007-04-11 | 三星电子株式会社 | Touch sensitive display device and driving apparatus and method thereof |
| CN101599632A (en) * | 2008-03-12 | 2009-12-09 | 凹凸电子（武汉）有限公司 | Regulate the supervisory circuit of electric current |
| CN104423647A (en) * | 2013-09-10 | 2015-03-18 | 矽统科技股份有限公司 | Touch input device and system thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9417738B2 (en) * | 2009-06-12 | 2016-08-16 | Synaptics Incorporated | Untethered active pen and a method for communicating with a capacitive sensing device using the untethered active pen |
| EP2845083A4 (en) * | 2012-04-29 | 2016-01-13 | Jcm Electronic Stylus Llc | Stylus and stylus circuitry for capacitive touch screens |
-
2015
- 2015-05-08 CN CN201510232453.1A patent/CN106200859B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945387A (en) * | 2005-09-21 | 2007-04-11 | 三星电子株式会社 | Touch sensitive display device and driving apparatus and method thereof |
| CN101599632A (en) * | 2008-03-12 | 2009-12-09 | 凹凸电子（武汉）有限公司 | Regulate the supervisory circuit of electric current |
| CN104423647A (en) * | 2013-09-10 | 2015-03-18 | 矽统科技股份有限公司 | Touch input device and system thereof |
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| CN106200859A (en) | 2016-12-07 |
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Address after: Taiwan, Hsinchu, China Science Park, 5 East 2 Road Applicant after: Han Shuo Electronics Co.,Ltd. Address before: Taiwan, China Hsinchu science and Technology Industrial Park, nine East Road, building 1, building 30 Applicant before: Taihan Technology Co.,Ltd. |
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Granted publication date: 20190405 |