CN202563463U - Electromagnetic multi-touch system and electromagnetic pen - Google Patents
Electromagnetic multi-touch system and electromagnetic pen Download PDFInfo
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- CN202563463U CN202563463U CN2012201870747U CN201220187074U CN202563463U CN 202563463 U CN202563463 U CN 202563463U CN 2012201870747 U CN2012201870747 U CN 2012201870747U CN 201220187074 U CN201220187074 U CN 201220187074U CN 202563463 U CN202563463 U CN 202563463U
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Abstract
The embodiment of the utility model discloses an electromagnetic multi-touch system and an electromagnetic pen. The electromagnetic pen comprises an LC resonance circuit and control switches, wherein the LC resonance circuit is arranged in a shell of the electromagnetic pen and is used for transmitting electromagnetic signals with at least two resonance frequencies; and the control switches are arranged on the shell, are connected with the LC resonance circuit and are used for controlling the electromagnetic signals transmitted by the LC resonance circuit to be switched between the two resonance frequencies. The electromagnetic multi-touch system comprises the electromagnetic pen and an electromagnetic signal processing device for sensing and processing the electromagnetic signals transmitted from the electromagnetic pen. The electromagnetic multi-touch system and the electromagnetic pen realize electromagnetic multi-touch and meet the requirement of a user on multi-touch by multiple pens in a mixed manner by adopting the LC resonance circuit which can transmit the electromagnetic signals with the at least two resonance frequencies and is arranged in the shell of the electromagnetic pen and the electromagnetic signal processing device which can sense and process the electromagnetic signals transmitted from the electromagnetic pen.
Description
Technical field
The utility model relates to induction input technology field, relates in particular to a kind of electromagnetic type multi-point touch system and time writer.
Background technology
The touch screen technology of main flow mainly contains following several kinds at present: resistance-type, condenser type and inductance type.Wherein, the handwriting input of inductive touch is by time writer, antenna array strake with discern treatment circuit accordingly and accomplish.
Yet; Existing inductive touch and time writer thereof can only be realized the single-point touches function; Also be the electromagnetic wave that time writer can only be launched single-frequency, inductive touch can only detect the time writer of this resonance frequency of identification, a supporting time writer consequently can only be arranged in the work of the effective coverage of electromagnetic induction plate; Function singleness can not satisfy many of users and mix the demand of carrying out multi-point touch of using.
The utility model content
The utility model embodiment technical matters to be solved is, a kind of time writer and electromagnetic type multi-point touch system that can launch the electromagnetic signal of at least two kinds of resonance frequencies is provided.
In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of time writer, comprises in the housing of being located at time writer, is used to launch the LC resonant circuit of the electromagnetic signal of at least two kinds of resonance frequencies; Be located on the said housing and be connected in the CS that the electromagnetic signal LC resonant circuit, that be used to control the emission of LC resonant circuit is switched between two kinds of resonance frequencies.
Further; The LC resonant circuit comprises by coil and is wound in the inductance that the magnet ring post forms equably; The length of magnet ring post is more than or equal to the length of inductance; The magnet ring post flexibly is resisted against the nib that stretches out said housing by elastic component, and when nib receives external force and is pressed in the housing along the axial-movement of said coil.
Further, the LC resonant circuit comprise the power supply that constitutes by 1.5 volts dry cell or lithium battery be connected in power supply, after the idle scheduled duration of time writer, get into the power-saving circuit of dormant state by its control.
Correspondingly, the utility model embodiment also provides a kind of electromagnetic type multi-point touch system, comprising: be used to launch electromagnetic signal, aforesaid time writer; Be used to respond to and handle the electromagnetic signal treating apparatus of the electromagnetic signal of said time writer emission, said electromagnetic signal treating apparatus comprises: the receiver that is used to receive the electromagnetic signal of time writer emission; Be connected in receiver and handle the signal processing circuit of the electromagnetic signal that receiver receives; And be connected in signal processing circuit and the handled electromagnetic signal of signal processing circuit is carried out the microprocessor that calculation process obtains coordinate data.
Further; Said receiver is the electromagnetic induction plate; Be provided with inductive layer and the signal scanning module that is connected in inductive layer in the said electromagnetic induction plate; Inductive layer in insulation diaphragm, be provided with along X, the aerial array that Y is axial, the space that the corresponding grid of each array is enclosed constitutes an electromagnetic induction unit.
Further; Signal processing circuit comprises at least two signal Processing electronic circuits; Each signal Processing electronic circuit includes first signal amplifier, gain controller, wave-shaping filter, automatic gain controller, BPF., secondary signal amplifier and the signal smoothing integrator that connects successively; Wherein, first signal amplifier is connected in the signal scanning module, and the signal smoothing integrator is connected in microprocessor.
Further, the space that said each array grid enclosed is square or is circular.
Further, said electromagnetic type multi-point touch system also comprises display panel, and said inductive layer is arranged at the front portion or the rear portion of display panel.
Further, said inductive layer is the corresponding inductive means of handwriting pad, drawing boards or telepilot.
Further, in said electromagnetic induction plate, also be provided with the screen layer that is used for the enhancement apparatus antijamming capability behind the inductive layer.
The beneficial effect of the time writer of the utility model embodiment and electromagnetic type multi-point touch system is: through adopting the LC resonant circuit of the electromagnetic signal that can launch at least two kinds of resonance frequencies; Said LC resonant circuit is located in the housing of time writer and can be responded to and handle the technological means of the electromagnetic signal treating apparatus of the electromagnetic signal that said time writer launches; Thereby realized the electromagnetic type multi-point touch, satisfied many of users and mixed the demand of carrying out multi-point touch of using.
Description of drawings
Fig. 1 is the cut-open view of the time writer of the utility model embodiment.
Fig. 2 is the structured flowchart of the electromagnetic signal treating apparatus of the utility model embodiment.
Fig. 3 is the structural representation of aerial array of the electromagnetic signal treating apparatus of the utility model embodiment.
Embodiment
Please refer to Fig. 1 ~ Fig. 2, the utility model embodiment provides a kind of time writer and the electromagnetic type multi-point touch system that uses said time writer that can launch the electromagnetic signal of at least two kinds of resonance frequencies.
Said time writer comprises the LC resonant circuit (not shown) in the housing 1 of being located at time writer and is located at the CS 10 on the said housing 1.
The LC resonant circuit is located in the housing 1 of time writer, is used to launch the electromagnetic signal of at least two kinds of resonance frequencies, and in this embodiment, resonant frequency range is 100KHz～600KHz, and two kinds of resonance frequencies are preferably 160KHz and 455KHz.The LC resonant circuit comprises by coil 20 and is wound in the inductance that magnet ring post 30 forms equably; Particularly, coil 20 is around on the winding bracket 40 and forms containing cavity, and magnet ring post 30 is located in the said containing cavity slidably; The length of magnet ring post 30 is more than or equal to the length of inductance; Magnet ring post 30 flexibly is resisted against the nib 60 that stretches out said housing 1 by elastic component 50 and baffle plate 51, and when nib 60 receives external force and is pressed in the housing 1 along the axial-movement of said coil 20, be equivalent to the identification of nib 60 pressure; Thereby be able to change the inductance parameters of said inductance, and then change the frequency of the electromagnetic signal of time writer emission.
The LC resonant circuit also comprises power supply 70 and the power-saving circuit (not shown) that is connected in power supply 70.Power supply 70 is made up of 1.5 volts dry cell or lithium battery; Power-saving circuit is used for after the idle scheduled duration of time writer, getting into dormant state by its control.In this embodiment; Power-saving circuit is the on-off circuit that is combined to form by transistor, and on-off circuit is provided with a control end, when control end is high level; Transistor switch is in conducting state; When input end was low level, transistor switch was in off-state, and the LC resonant circuit will energized 70 operate as normal after the transistor turns.The transistor controls end be by a pair of electric capacity parallelly connected with resistance over the ground discharge and recharge control, the nib 60 and the button place of time writer are equipped with mechanical switch, these mechanical switchs will discharge and recharge control capacitance and be connected with power supply 70; When button or nib 60 operations, power supply 70 will charge to electric capacity, during end of operation; Electric capacity passes through conductive discharge with energy stored; When discharging into to a certain degree, transistor is in cut-off state, and the power supply 70 of LC resonant circuit is closed; Time writer is in the dormancy armed state, up to next operation occurring.Power supply 70 can not closed when the time writer normal running, not operation of scheduled duration (for example 15 minutes, certainly the user can be according to the requirements set dormancy time) (push button or be pressed into nib 60), and time writer can automatic powered-down 70, gets into dormant state.
CS 10 is located on the said housing 1, is connected in the LC resonant circuit, and the electromagnetic signal that is used to control the emission of LC resonant circuit is switched between two kinds of resonance frequencies.
Said electromagnetic type multi-point touch system comprises the said time writer and the electromagnetic signal treating apparatus that is used to respond to and handle the electromagnetic signal of said time writer emission that is used to launch electromagnetic signal.
Said electromagnetic signal treating apparatus comprises: receiver 80, signal processing circuit 90 and microprocessor 100.
Receiver 80 is used to receive the electromagnetic signal of time writer emission.In this embodiment; Said receiver 80 is the electromagnetic induction plate; Be provided with inductive layer and the signal scanning module that is connected in inductive layer in the said electromagnetic induction plate; Inductive layer in insulation diaphragm, be provided with along X, the aerial array that Y is axial, the space that the corresponding grid of each array is enclosed constitutes an electromagnetic induction unit.The space that said each array grid enclosed is square or is circular.Particularly, the electromagnetic induction plate is hardboard FR4, FPC or like transparent conductive panels such as ITO.Please in the lump with reference to figure 3, in this embodiment, aerial array is made up of axial wide, equidistance of two of X, Y and the identical range upon range of and insulated from each other array of semiclosed coil of size.When the signal of predetermined resonant frequency appears in the aerial array zone, X
A1With X
B1, X
A2With X
B2..., X
AnWith X
Bn, Y
A1With Y
B1, Y
A2With Y
B2... Y
AnWith Y
BnTwo ends all can produce induction electromotive force, and the signal scanning module is passed to signal processing circuit 90 with the electromotive force of sensing and handled, microprocessor 100 with data processing, convert coordinate data into and export with forms such as UART/I2C/USB.
In this embodiment, said electromagnetic signal treating apparatus also comprises the display panel (not shown), and said inductive layer is arranged at the front portion or the rear portion of display panel; Preferably, inductive layer is arranged on the back of display panel, so the resistance-type of comparing and capacitive touch screen; Penetrability will be got well a lot, can extending battery life, and most important input pen needn't contact screen; Reduce wear, the stability of sensitivity is greatly improved.In said electromagnetic induction plate, also be provided with the screen layer that is used for the enhancement apparatus antijamming capability behind the inductive layer.As preferred embodiment, said inductive layer is the corresponding inductive means of handwriting pad, drawing boards or telepilot.
Signal processing circuit 90 is connected in receiver 80, is used to handle the electromagnetic signal that receiver 80 is received.Signal processing circuit 90 comprises at least two signal Processing electronic circuits; The corresponding electromagnetic signal of handling a kind of resonance frequency of each signal Processing electronic circuit; Each signal Processing electronic circuit includes first signal amplifier, gain controller, wave-shaping filter, automatic gain controller, BPF., secondary signal amplifier and the signal smoothing integrator that connects successively; Wherein, first signal amplifier is connected in the signal scanning module, and the signal smoothing integrator is connected in microprocessor 100.
Microprocessor 100 is connected in signal processing circuit 90, is used for that signal processing circuit 90 handled electromagnetic signals are carried out calculation process and obtains coordinate data.
In sum; The time writer of the utility model embodiment and electromagnetic type multi-point touch system have overcome the defective of traditional touch technology; Two above time writers of electromagnetic type multi-point touch system support; Same antenna array receives the electromagnetic signal of two kinds of resonance frequencies simultaneously, and the electromagnetic signal of 90 pairs of two kinds of resonance frequencies of signal processing circuit is handled simultaneously and handled, converts into coordinate data with the output of forms such as UART/I2C/USB by microprocessor 100, realized two above time writers simultaneously on touch screen or electronic whiteboard high resolving power write; Said multi-point touch technology has improved user experience dramatically; And many mixing application have more hommization, and operating function is abundanter.
The above is the embodiment of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also are regarded as the protection domain of the utility model.
Claims (10)
1. a time writer is characterized in that, comprising:
Be located in the housing of time writer, be used to launch the LC resonant circuit of the electromagnetic signal of at least two kinds of resonance frequencies;
Be located on the said housing and be connected in the CS that the electromagnetic signal LC resonant circuit, that be used to control the emission of LC resonant circuit is switched between two kinds of resonance frequencies.
2. like the described time writer of claim 1; It is characterized in that; The LC resonant circuit comprises by coil and is wound in the inductance that the magnet ring post forms equably; The length of magnet ring post is more than or equal to the length of inductance, and the magnet ring post flexibly is resisted against the nib that stretches out said housing by elastic component, and when nib receives external force and is pressed in the housing along the axial-movement of said coil.
3. like the described time writer of claim 1, it is characterized in that, the LC resonant circuit comprise the power supply that constitutes by 1.5 volts dry cell or lithium battery be connected in power supply, after the idle scheduled duration of time writer, get into the power-saving circuit of dormant state by its control.
4. an electromagnetic type multi-point touch system is characterized in that, said electromagnetic type multi-point touch system comprises:
Be used for launching electromagnetic signal, like each described time writer of claim 1～3;
Be used to respond to and handle the electromagnetic signal treating apparatus of the electromagnetic signal of said time writer emission, said electromagnetic signal treating apparatus comprises:
Be used to receive the receiver of the electromagnetic signal of time writer emission;
Be connected in receiver and handle the signal processing circuit of the electromagnetic signal that receiver receives; And
Be connected in signal processing circuit and the handled electromagnetic signal of signal processing circuit is carried out the microprocessor that calculation process obtains coordinate data.
5. like electromagnetic type multi-point touch system of the described electromagnetic type multi-point touch of claim 4 system; It is characterized in that; Said receiver is the electromagnetic induction plate, be provided with inductive layer in the said electromagnetic induction plate and be connected in the signal scanning module of inductive layer, inductive layer in insulation diaphragm, be provided with along X; The aerial array that Y is axial, the space that the corresponding grid of each array is enclosed constitutes an electromagnetic induction unit.
6. electromagnetic type multi-point touch as claimed in claim 5 system; It is characterized in that; Signal processing circuit comprises at least two signal Processing electronic circuits, and each signal Processing electronic circuit includes first signal amplifier, gain controller, wave-shaping filter, automatic gain controller, BPF., secondary signal amplifier and the signal smoothing integrator that connects successively, wherein; First signal amplifier is connected in the signal scanning module, and the signal smoothing integrator is connected in microprocessor.
7. electromagnetic type multi-point touch as claimed in claim 5 system is characterized in that, the space that said each array grid enclosed is square or is circular.
8. electromagnetic type multi-point touch as claimed in claim 5 system is characterized in that said electromagnetic signal treating apparatus also comprises display panel, and said inductive layer is arranged at the front portion or the rear portion of display panel.
9. electromagnetic type multi-point touch as claimed in claim 5 system is characterized in that, said inductive layer is the corresponding inductive means of handwriting pad, drawing boards or telepilot.
10. electromagnetic type multi-point touch as claimed in claim 5 system is characterized in that, in said electromagnetic induction plate, also is provided with the screen layer that is used for the enhancement apparatus antijamming capability behind the inductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201870747U CN202563463U (en) | 2012-04-27 | 2012-04-27 | Electromagnetic multi-touch system and electromagnetic pen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201870747U CN202563463U (en) | 2012-04-27 | 2012-04-27 | Electromagnetic multi-touch system and electromagnetic pen |
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| CN202563463U true CN202563463U (en) | 2012-11-28 |
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| CN105607765A (en) * | 2015-12-29 | 2016-05-25 | 广州磐信计算机科技有限公司 | Electromagnetic induction type multi-channel handwriting input system and method |
| US9600093B2 (en) | 2013-09-26 | 2017-03-21 | Lg Display Co., Ltd. | Touch sensing system and method for driving the same |
| US9851816B2 (en) | 2013-11-08 | 2017-12-26 | Egalax_Empia Technology Inc. | Transmitter and controlling method thereof |
| US10061410B2 (en) | 2013-11-08 | 2018-08-28 | Egalax_Empia Technology Inc. | Transmitter set for concurrent transmission, transmitting method thereof, and touch sensitive system |
| US10890987B2 (en) | 2013-11-08 | 2021-01-12 | Egalax_Empia Technology Inc. | Stylus and operating method thereof for transmitting electrical signals carrying pressure information |
| US10895921B2 (en) | 2013-11-08 | 2021-01-19 | Egalax_Empia Technology Inc. | Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information |
| US11181994B2 (en) | 2013-11-08 | 2021-11-23 | Egalax_Empia Technology Inc. | Transmitter and controlling method thereof |
| US11237648B2 (en) | 2013-11-08 | 2022-02-01 | Egalax_Empia Technology Inc. | Touch sensitive processing method and apparatus and touch sensitive system for reducing detection time period of tethered stylus |
| US11392221B2 (en) | 2013-11-08 | 2022-07-19 | Egalax_Empia Technology Inc. | Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information |
| US11409379B2 (en) | 2013-11-08 | 2022-08-09 | Egalax_Empia Technology Inc. | Stylus and operating method thereof for transmitting electrical signals carrying pressure information |
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2012
- 2012-04-27 CN CN2012201870747U patent/CN202563463U/en not_active Expired - Fee Related
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| TWI610216B (en) * | 2013-09-26 | 2018-01-01 | Ｌｇ顯示器股份有限公司 | Touch sensing system and method for driving the same |
| US9600093B2 (en) | 2013-09-26 | 2017-03-21 | Lg Display Co., Ltd. | Touch sensing system and method for driving the same |
| US11340718B2 (en) | 2013-11-08 | 2022-05-24 | Egalax_Empia Technology Inc. | Transmitter and transmitting method |
| US10895921B2 (en) | 2013-11-08 | 2021-01-19 | Egalax_Empia Technology Inc. | Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information |
| US11662842B2 (en) | 2013-11-08 | 2023-05-30 | Egalax_Empia Technology Inc. | Touch sensitive processing method and apparatus and touch system for receiving information from transmitter |
| US10061410B2 (en) | 2013-11-08 | 2018-08-28 | Egalax_Empia Technology Inc. | Transmitter set for concurrent transmission, transmitting method thereof, and touch sensitive system |
| US10416791B2 (en) | 2013-11-08 | 2019-09-17 | Egalax_Empia Technology Inc. | Circuit switch and stylus |
| US10606375B2 (en) | 2013-11-08 | 2020-03-31 | Egalax_Empia Technology Inc. | Transmitter, transmitting method and touch sensitive system for transmitting pressure value |
| US10890987B2 (en) | 2013-11-08 | 2021-01-12 | Egalax_Empia Technology Inc. | Stylus and operating method thereof for transmitting electrical signals carrying pressure information |
| US9851816B2 (en) | 2013-11-08 | 2017-12-26 | Egalax_Empia Technology Inc. | Transmitter and controlling method thereof |
| US11181994B2 (en) | 2013-11-08 | 2021-11-23 | Egalax_Empia Technology Inc. | Transmitter and controlling method thereof |
| US11237648B2 (en) | 2013-11-08 | 2022-02-01 | Egalax_Empia Technology Inc. | Touch sensitive processing method and apparatus and touch sensitive system for reducing detection time period of tethered stylus |
| US11409379B2 (en) | 2013-11-08 | 2022-08-09 | Egalax_Empia Technology Inc. | Stylus and operating method thereof for transmitting electrical signals carrying pressure information |
| US11392221B2 (en) | 2013-11-08 | 2022-07-19 | Egalax_Empia Technology Inc. | Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information |
| CN105607765A (en) * | 2015-12-29 | 2016-05-25 | 广州磐信计算机科技有限公司 | Electromagnetic induction type multi-channel handwriting input system and method |
| CN105607765B (en) * | 2015-12-29 | 2018-08-10 | 广州磐信计算机科技有限公司 | A kind of induction multichannel person's handwriting input system and method |
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Owner name: HUANG SHAOZHONG Free format text: FORMER OWNER: XIE LEI Effective date: 20130619 Free format text: FORMER OWNER: HE AILAN ZHAN JINLIANG Effective date: 20130619 |
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Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 510000 GUANGZHOU, GUANGDONG PROVINCE |
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Effective date of registration: 20130619 Address after: 510000 No. 2794 East Xingang Road, Guangzhou, Guangdong, Haizhuqu District Patentee after: Huang Shaozhong Address before: 518000, Shenzhen, Guangdong, Baoan District City Road, Jintai Industrial Park, B building, 2 floor, stone technology Patentee before: Xie Lei Patentee before: He Ailan Patentee before: Zhan Jinliang |
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| ASS | Succession or assignment of patent right |
Owner name: CLOUD H.Q. INVESTMENTS HOLDINGS CO., LTD. Free format text: FORMER OWNER: HUANG SHAOZHONG Effective date: 20131218 |
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Free format text: CORRECT: ADDRESS; FROM: 510000 GUANGZHOU, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131218 Address after: 518000, Guangdong, Shenzhen province Futian District Shennan Road Huaqiang junction, Huaqiang computer workshop 2, 5 floor, room 1-3 East Patentee after: CLOUD HQ INVESTMENT HOLDINGS CO., LTD. Address before: 510000 No. 2794 East Xingang Road, Guangzhou, Guangdong, Haizhuqu District Patentee before: Huang Shaozhong |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20190427 |