CN102368181A - Writing and trigging device of electronic pen - Google Patents
Writing and trigging device of electronic pen Download PDFInfo
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- CN102368181A CN102368181A CN2011103278405A CN201110327840A CN102368181A CN 102368181 A CN102368181 A CN 102368181A CN 2011103278405 A CN2011103278405 A CN 2011103278405A CN 201110327840 A CN201110327840 A CN 201110327840A CN 102368181 A CN102368181 A CN 102368181A
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Abstract
The invention discloses a writing and triggering device of an electronic pen. The device comprises a pen shell and a pen tip; the device is characterized by further comprising a capacitor movable pole, a capacitor fixed pole, a flexible element, a capacitance value measuring circuit, a data processing circuit and a wireless transmitting circuit; the capacitor movable pole is arranged at the front end of the pen shell and can move vertically; the capacitor fixed pole is fixed in the pen shell and cannot move freely; one end of the flexible element is fixed at the capacitor movable pole, and the other end of the flexible element is fixed at the capacitor fixed pole or on a part with a phase displacement change with the pen shell; the capacitance value measuring circuit and a capacitance fixing circuit are formed into a capacitor body, and two poles of the capacitor body are respectively connected with a capacitance input end of the capacitance value measuring circuit; the digital processing circuit is connected with the capacitance value measuring circuit and used for reading the capacitance numerical value from the capacitance value measuring circuit; and the wireless transmitting circuit is connected with the data processing circuit and used for transmitting the pen tip touch data. The device provided by the invention can independently finish mechanical contact writing and triggering in a writing pen and can detect the wiring pressure size.
Description
Technical field
The present invention relates to electronics and trigger the field, particularly a kind of electronic pen writes flip flop equipment.
Background technology
Along with the widespread use of interactive electronic white board, electronic touch screen, also be used widely as the electronic writing pen of important man-machine interaction instrument.The major function of electronic writing pen is the electronic installation that action of writing triggers lettering pen, produces various electronic signals according to different application.As send IR is accomplished writing position by optical positioning apparatus location when writing; As send ultrasound wave is accomplished writing position by ultrasonic positioner location when writing; As detect the strength of touch-control simultaneously when writing and send the variation that electronic writing device is realized handwriting thickness to.
Wherein the action of writing flip flop equipment is the core key of this type of electronic pen, and directly the reliability of triggering, the comfort level of writer's writing process, the sensitivity of writing trigger action are write in influence.
In the prior art, normally accomplish action of writing and trigger, like electronic switch, conductive rubber switch etc. through Mechanical Contact.The most frequently used action of writing flip flop equipment is to use conductive rubber trigger electrode switch to realize.The button of similar our the most frequently used TV remote controller is realized principle; During action of writing nib is produced pressure; Cause the deformation of conductive rubber and touch switch electrode, switch closure is realized through the conductive rubber conducting in the contact of electrode, accomplishes the circuit triggers of action of writing; Nib pressure disappeared when action of writing finished, and conductive rubber deformation is eliminated, and switch breaks off.Because conductive rubber easy ageing generation conduction is bad and elasticity is not enough, adheres to dust and cause conducting electricity bad.This technology realizes that the reliability of action of writing triggering is relatively poor.
Also has a kind of lettering pen technology that is widely used in the electromagnetic type handwriting pad, the electromagnetic type writing pencil.Like disclosed technical scheme among the Chinese patent ZL01145283.8 (Granted publication number be CN1202460C), the action of writing detection need be accomplished through writing pencil and handwriting pad jointly.The components and parts of this electronic pen comprise magnetic element and inductance and capacitance type resonant circuit and coil composition; When action of writing is arranged nib is produced pressure; Drive the position change of magnetic element, cause the variation of inductance value, thereby changed the resonance frequency of resonant circuit; Resonant circuit is launched the electromagnetic field signal of change of frequency with wireless mode through coil; Digiboard receives this electromagnetic field signal and produces induced voltage, can calculate the triggering whether action of writing is arranged from this induced voltage, and can calculate the displacement of writing the nib generation and write strength.
But this Technology Need pen and electromagnetism handwriting pad cooperate jointly and could realize, writing pencil can only produce faint electromagnetic field signal according to the touch-control incident separately, and the occasion beyond the electromagnetism handwriting pad can not work alone, and application scenarios is restricted.
Summary of the invention
The shortcoming that the objective of the invention is to overcome prior art is with not enough, provide a kind of can be in lettering pen independent accomplish the on-mechanical contact and can detect write the big or small electronic pen of pressure and write flip flop equipment.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of electronic pen write flip flop equipment, comprise a shell and nib, also comprise: the movable utmost point of electric capacity, be fixed together with nib, be installed in a shell front end and can move up and down;
The capacitor fixing utmost point is fixed in the shell and can not moves freely;
Flexible member, an end are fixed on the movable utmost point of electric capacity, and the other end is fixed on the capacitor fixing utmost point or does not have on the parts of relative displacement variation with a shell;
Capacitance measurement circuit, the movable utmost point of electric capacity and the capacitor fixing utmost point constitute a capacitance body, and are connected respectively to the two poles of the earth the electric capacity input end of capacitance measurement circuit through lead; Capacitance measurement circuit is accomplished the measured capacitance value to this capacitance body, exports digitized capacitance.
Data processing circuit is connected in capacitance measurement circuit, reads capacitance values from said capacitance measurement circuit;
Wireless transmission circuit is connected in data processing circuit, is used to send written touch-control data.
Preferably, the movable utmost point of said electric capacity and nib are integrated formation.
Preferably, the said capacitor fixing utmost point comprises first electric capacity and first conductive material, and said first conductive material is positioned at the lower surface of first electric capacity, forms electrode.
Preferably, the movable utmost point of said electric capacity comprises second electric capacity and second conductive material, forms electrode.
Preferably, said capacitance measurement circuit is made up of special circuit and electronic chip.
Preferably, said flexible member is spring, rubber or other elastic medium.
Preferably, also comprise wireless receiving circuit and write control circuit that said wireless receiving circuit receives the data that wireless transmission circuit spreads out of, the said control circuit of writing is write the pressure size through the Data Control of wireless receiving circuit.
The present invention has following advantage and effect with respect to prior art:
1, the present invention adopts on-mechanical formula contact, thereby the problem that unreliability factors is brought is write in aging, the loose contact of having avoided bringing because of the Mechanical Contact formula and dirty etc.
2, the present invention adopts resilient material; Its realize easily writing stroke be hit by a bullet power evenly; The very little stroke of writing also has good writing experience, needs the defective of bigger strength when having overcome touch switch such as traditional mechanical formula such as mechanical key, conductive rubber button.
3, circuit of the present invention is simple, volume is little and low in energy consumption, is fit to active pen.
Description of drawings
Fig. 1 is the structural drawing that the present invention writes flip flop equipment.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but embodiment of the present invention is not limited thereto.
Embodiment
As shown in Figure 1, a kind of electronic pen of present embodiment write flip flop equipment, comprise a shell and nib; Also comprise the movable utmost point of electric capacity,, be installed in a shell front end with the nib assembling; And but easy on and off is movable in the inherent shell of certain limit, can't freely come off outside a shell.The movable utmost point of said electric capacity comprises first electric capacity and first conductive material, and conductive material is arranged on the upper surface of first electric capacity, forms electrode.
The said capacitor fixing utmost point is fixed in the shell and can not be free movable.The said capacitor fixing utmost point comprises second electric capacity and second conductive material, and conductive material is arranged on the lower surface of second electric capacity, forms electrode.
Said flexible member can adopt spring, rubber or other elastic medium.Said flexible member one end is fixed on the movable utmost point of electric capacity, the other end is fixed on a shell or other does not have on the parts of relative displacement variation with a shell.
Said capacitance measurement circuit can be realized the measurement of high-accuracy capacitor value.Can accurately measure by the capacitance of special circuit and electronic chip realization measured capacitance body.Present embodiment measured capacitance body is a capacitance body that is formed by the movable utmost point of electric capacity and the capacitor fixing utmost point, and is connected respectively to the electric capacity input terminal of capacitance measurement circuit, the capacitance high-acruracy survey of realization to forming between two electrodes to the two poles of the earth through lead.
Said data processing circuit realizes reading from capacitance measurement circuit the capacitance values of capacitance body, according to preset algorithm judge write the touch-control action, when writing written displacement and write strength.Produce various electronic signals according to different application, thereby regulate the size of writing pressure according to the difference of electronic signal.
Nib touch-control data send through wireless transmission circuit, and the equipment through the outside receives and handles as writing the wireless receiver in the screen and writing the control module of software and hardware, can form the pressure sensitivity function that action of writing triggers and the written handwriting thickness changes.
The present embodiment electronic pen write flip flop equipment, also comprise wireless receiving circuit and write control circuit that said wireless receiving circuit receives the data that wireless transmission circuit sends out, and controls the size of written pressure through writing control circuit then.
Principle of work of the present invention is:
When nib did not have action of writing to remain static, the capacitance that the electric capacity of the capacitance body that the movable utmost point of capacitor fixing value and electric capacity is formed is measured through capacitance measurement circuit was C0; When nib was write onboard, action of writing drives nib and the movable utmost point of electric capacity produces displacement upwards, the distance minimizing of the capacitor fixing utmost point and the movable utmost point of electric capacity, according to the capacitance computing formula of capacity plate antenna:
c＝ε
0ε
RA/d
Wherein A is the area of plane of capacity plate antenna, and d is the distance of two interpolars.
The electric capacity that capacitance body is formed at the two poles of the earth increases, and the capacitance of measuring through capacitance measurement circuit is Cx; Data processing circuit can be judged the touch-control action through judging Cx and C0 difference according to preset algorithm principle; And can calculate the changing value of displacement between two capacitance poles, and nib write shift value; Converse simultaneously and write the pressure size according to the elasticity coefficient curve of resilient material.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
- An electronic pen write flip flop equipment, comprise a shell and nib, it is characterized in that also comprise: the movable utmost point of electric capacity is installed in a shell front end and can moves up and down;The capacitor fixing utmost point is fixed in the shell and can not moves freely;Flexible member, an end are fixed on the movable utmost point of electric capacity, and the other end is fixed on the capacitor fixing utmost point or does not have on the parts of relative displacement variation with a shell;Capacitance measurement circuit, the said fixing utmost point and the movable utmost point form a capacitance body, and are connected respectively to the electric capacity input end of capacitance measurement circuit to the two poles of the earth through lead, measure the capacitance of this capacitance body through capacitance measurement circuit, and export corresponding numerical value.Data processing circuit is connected in capacitance measurement circuit, reads capacitance values from said capacitance measurement circuit, calculates written touch-control action and written pressure size;Wireless transmission circuit is connected in data processing circuit, is used to send written touch-control data.
- 2. according to the flip flop equipment of writing of the said electronic pen of claim 1, it is characterized in that the movable utmost point of said electric capacity and nib are integrated formation.
- 3. according to the flip flop equipment of writing of the said electronic pen of claim 1, its characteristic is being that the said capacitor fixing utmost point comprises first electric capacity and first conductive material, and said first conductive material is positioned at the lower surface of first electric capacity, forms electrode.
- 4. according to the flip flop equipment of writing of the said electronic pen of claim 1, it is characterized in that the movable utmost point of said electric capacity comprises second electric capacity and second conductive material, forms electrode.
- 5. according to the flip flop equipment of writing of the said electronic pen of claim 1, it is characterized in that said flexible member is spring or rubber.
- 6. according to the flip flop equipment of writing of the said electronic pen of claim 1; It is characterized in that; Also comprise wireless receiving circuit and write control circuit; Said wireless receiving circuit receives the data that wireless transmission circuit spreads out of, and the said control circuit of writing is write the pressure size through the Data Control of wireless receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103278405A CN102368181A (en) | 2011-10-25 | 2011-10-25 | Writing and trigging device of electronic pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103278405A CN102368181A (en) | 2011-10-25 | 2011-10-25 | Writing and trigging device of electronic pen |
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| CN102368181A true CN102368181A (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103278405A Pending CN102368181A (en) | 2011-10-25 | 2011-10-25 | Writing and trigging device of electronic pen |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722273A (en) * | 2012-05-29 | 2012-10-10 | 苏州瀚瑞微电子有限公司 | Wireless touch pen |
| CN102880318A (en) * | 2012-08-31 | 2013-01-16 | 鸿富锦精密工业（深圳）有限公司 | Handwriting pen and capacitive pressure sensing element thereof |
| CN104407752A (en) * | 2014-10-29 | 2015-03-11 | 北京智谷睿拓技术服务有限公司 | Pressure detecting method and equipment |
| CN105556445A (en) * | 2013-08-22 | 2016-05-04 | 密克罗奇普技术公司 | Touch screen stylus with force and/or angle sensing functionality |
| CN106249922A (en) * | 2016-08-12 | 2016-12-21 | 京东方科技集团股份有限公司 | A kind of pointer |
| CN106546312A (en) * | 2017-01-11 | 2017-03-29 | 广东奥特体能科技有限公司 | Intelligent tester for height and weight |
| TWI578193B (en) * | 2013-11-08 | 2017-04-11 | 禾瑞亞科技股份有限公司 | Force sensor |
| WO2017157051A1 (en) * | 2016-03-15 | 2017-09-21 | 广东宗华触控科技有限公司 | Variable capacitance pressure sensor and true writing stylus pen |
| CN107683450A (en) * | 2015-07-10 | 2018-02-09 | 株式会社和冠 | Position indicator |
| CN110096167A (en) * | 2019-05-10 | 2019-08-06 | 鲁伯特（北京）教育科技有限公司 | A kind of LC resonance circuit of time writer and the method for proposing high q-factor |
| CN111033449A (en) * | 2017-09-05 | 2020-04-17 | 株式会社和冠 | Electronic pen and refill for electronic pen |
| CN112346582A (en) * | 2019-08-08 | 2021-02-09 | 华为技术有限公司 | Touch control pen and electronic equipment |
| CN113534984A (en) * | 2021-07-20 | 2021-10-22 | 深圳市绘王动漫科技有限公司 | Writing pen |
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| US20100117994A1 (en) * | 2008-11-13 | 2010-05-13 | Wacom Co., Ltd. | Position indicator, variable capacitor and input device |
| CN101727218A (en) * | 2010-01-27 | 2010-06-09 | 北京爱易玛克科技有限公司 | Electronic handwriting pen with function of detecting pressure value |
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2011
- 2011-10-25 CN CN2011103278405A patent/CN102368181A/en active Pending
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| CN1430129A (en) * | 2001-12-30 | 2003-07-16 | 天瀚科技股份有限公司 | Wireless pen for digital |
| CN2870113Y (en) * | 2006-01-26 | 2007-02-14 | 汉王科技股份有限公司 | Capacitance changing apparatus |
| CN101526860A (en) * | 2008-03-06 | 2009-09-09 | 介面光电股份有限公司 | Capacitance pen |
| US20100117994A1 (en) * | 2008-11-13 | 2010-05-13 | Wacom Co., Ltd. | Position indicator, variable capacitor and input device |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722273A (en) * | 2012-05-29 | 2012-10-10 | 苏州瀚瑞微电子有限公司 | Wireless touch pen |
| CN102880318A (en) * | 2012-08-31 | 2013-01-16 | 鸿富锦精密工业（深圳）有限公司 | Handwriting pen and capacitive pressure sensing element thereof |
| CN105556445B (en) * | 2013-08-22 | 2019-08-16 | 株式会社和冠 | Touch screen stylus with strength and/or angle sensing function |
| CN105556445A (en) * | 2013-08-22 | 2016-05-04 | 密克罗奇普技术公司 | Touch screen stylus with force and/or angle sensing functionality |
| TWI578193B (en) * | 2013-11-08 | 2017-04-11 | 禾瑞亞科技股份有限公司 | Force sensor |
| TWI578194B (en) * | 2013-11-08 | 2017-04-11 | 禾瑞亞科技股份有限公司 | Force sensor |
| CN108549494A (en) * | 2013-11-08 | 2018-09-18 | 禾瑞亚科技股份有限公司 | Sender unit |
| CN104407752B (en) * | 2014-10-29 | 2018-10-02 | 北京智谷睿拓技术服务有限公司 | A kind of pressure detection method and equipment |
| CN104407752A (en) * | 2014-10-29 | 2015-03-11 | 北京智谷睿拓技术服务有限公司 | Pressure detecting method and equipment |
| CN107683450B (en) * | 2015-07-10 | 2021-05-04 | 株式会社和冠 | Position indicator |
| CN107683450A (en) * | 2015-07-10 | 2018-02-09 | 株式会社和冠 | Position indicator |
| WO2017157051A1 (en) * | 2016-03-15 | 2017-09-21 | 广东宗华触控科技有限公司 | Variable capacitance pressure sensor and true writing stylus pen |
| US11048359B2 (en) | 2016-03-15 | 2021-06-29 | Guangdong Zonghua Touch Control Technology Co. Ltd. | Variable-capacitance pressure sensor and real-handwriting stylus |
| CN106249922A (en) * | 2016-08-12 | 2016-12-21 | 京东方科技集团股份有限公司 | A kind of pointer |
| CN106546312A (en) * | 2017-01-11 | 2017-03-29 | 广东奥特体能科技有限公司 | Intelligent tester for height and weight |
| CN111033449A (en) * | 2017-09-05 | 2020-04-17 | 株式会社和冠 | Electronic pen and refill for electronic pen |
| CN111033449B (en) * | 2017-09-05 | 2023-08-08 | 株式会社和冠 | Electronic pen and pen core for electronic pen |
| CN110096167A (en) * | 2019-05-10 | 2019-08-06 | 鲁伯特（北京）教育科技有限公司 | A kind of LC resonance circuit of time writer and the method for proposing high q-factor |
| CN112346582A (en) * | 2019-08-08 | 2021-02-09 | 华为技术有限公司 | Touch control pen and electronic equipment |
| CN113534984A (en) * | 2021-07-20 | 2021-10-22 | 深圳市绘王动漫科技有限公司 | Writing pen |
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Application publication date: 20120307 |