CN102033633A - Coordinate positioning device for displaying input locus in real time - Google Patents
Coordinate positioning device for displaying input locus in real time Download PDFInfo
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- CN102033633A CN102033633A CN2009100932626A CN200910093262A CN102033633A CN 102033633 A CN102033633 A CN 102033633A CN 2009100932626 A CN2009100932626 A CN 2009100932626A CN 200910093262 A CN200910093262 A CN 200910093262A CN 102033633 A CN102033633 A CN 102033633A
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- liquid crystal
- coordinate
- crystal film
- cholesteryl liquid
- control circuit
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Abstract
The invention discloses an electromagnetic coordinate positioning device for displaying an input locus in real time, and belongs to the field of external input equipment of computers. The device is provided with a main control circuit for detecting position information of a coordinate indicator and converting the position information into coordinate information, and the device transmits signals to a computer through a communication port. A cholesterol liquid crystal film for displaying the locus information input by the coordinate indicator in real time is covered on the upper surface of the coordinate positioning device. When a user inputs the locus information on the coordinate positioning device, the coordinate positioning device displays the locus information of the coordinate indicator in real time, and supplies the coordinate information of the coordinate indicator to the computer so as to realize computer input of the coordinate information on the premise of according with the writing habit of the user.
Description
Technical field
The invention belongs to field of computer external input equipment, relate to a kind of coordinate location device, especially relate to a kind of coordinate location device that can show input trajectory in real time.
Background technology
Computing machine is one of most important scientific and technological achievement on the human science and technology developing history, and that has now used is very extensive.Coordinate location device as computer entry device has the quick and easy characteristics of input, has solved different levels crowd's input Chinese character, the difficult problem of letter, has use value widely.Coordinate location device has become typical case's representative of non-keyboard input, and increasing people accepts and uses handwriting input as computed mode.Coordinate location device is furnished with special-purpose coordinate indicator usually, and as time writer, when writing in the effective coverage of coordinate location device, computing machine will show input information in the corresponding region inter-sync, and the coordinate location device writing write of explicit user not itself.
Compare with traditional writing on paper medium with pen, the user uses coordinate location device also to have inconvenient place.Traditional when on paper medium, writing with pen (as pencil, a pen etc.), paper medium can reflect the person's handwriting that the user write intuitively in the works clearly, hand and eye matching coordinative, the user also can control size, composing and the layout of institute's writing words easily.But when the user uses the coordinate location device input characters, coordinate location device is placed on display side position, coordinate location device itself can not demonstrate user's coordinate information, but directly be presented on the display, make the user when writing, hand and eye coordinate are poor, are difficult to control the size of the word of being write and arrange the use inconvenience.
Summary of the invention
Technical matters to be solved by this invention provide a kind of meet user writing custom, can in the works in real time the explicit user writing, provide the computing machine external input device of handwriting information to computing machine simultaneously.
For solving above-mentioned technical matters of the present invention, the invention provides a kind of coordinate location device of real-time demonstration trace information, this device is provided with positional information that is used for the detection coordinates indicator and the main control circuit that is converted to coordinate information, this device transmits signal by PORT COM to computing machine, the upper surface of this device is coated with the cholesteryl liquid crystal film, is used for the trace information of real-time displaing coordinate indicator input.
Preferably, also be provided with cholesteryl liquid crystal film control circuit in the coordinate location device, in order to eliminate the trace information on the cholesteryl liquid crystal film.
Preferably, described cholesteryl liquid crystal film covers the effective coverage of coordinate location device upper surface.
Preferably, also be coated with soft diaphragm on the described cholesteryl liquid crystal film, be used to prevent that coordinate indicator from scratching the cholesteryl liquid crystal film.
Preferably, described cholesteryl liquid crystal film covers on the upper surface of coordinate location device by the mode of stickup or special-purpose machinery structure buckle.
Preferably, main control circuit and cholesteryl liquid crystal film control circuit are independent mutually, and main control circuit is connected with cholesteryl liquid crystal film control circuit by the IO interface and carries out communication.
Preferably, cholesteryl liquid crystal film control circuit is integrated in the main control circuit.
The present invention is by covering the cholesteryl liquid crystal film in the effective coverage of coordinate location device, when coordinate indicator carries out the track input on coordinate location device, on the one hand stay person's handwriting on the cholesteryl liquid crystal film that covers on the effective coverage of coordinate location device, coordinate location device sends computing machine to after also converting the positional information of detected coordinate indicator to coordinate information simultaneously.When the user is write on coordinate location device, can show the trace information of writing in real time on the coordinate location device, and coordinate information offered computing machine, so just under the prerequisite of the writing style that meets the user, realized the computing machine typing of coordinate information.
Description of drawings
Fig. 1 is the basic schematic appearance of the present invention's coordinate location device of showing input trajectory in real time;
Fig. 2 is the basic structure synoptic diagram of the present invention's coordinate location device of showing input trajectory in real time;
Fig. 3 is the first embodiment synoptic diagram of the present invention's coordinate location device of showing input trajectory in real time;
Fig. 4 is the second embodiment synoptic diagram of the present invention's coordinate location device of showing input trajectory in real time;
Fig. 5 is the 3rd an embodiment synoptic diagram of the present invention's coordinate location device of showing input trajectory in real time.
Among the figure: 1, PORT COM 2, handwriting pad 201, cholesteryl liquid crystal film 202, effective coverage 203, soft diaphragm 204, handwriting pad upper casing 205, printed circuit board (PCB) 206, shielding material 207, handwriting pad drain pan 301, cholesteryl liquid crystal film control circuit 3011, the first main MCU 302, main control circuit 3021, the second main MCU
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Coordinate location device can be handwriting pad or plotting sheet, and in the embodiments of the invention, coordinate location device is a handwriting pad, and coordinate indicator is a time writer, and time writer and handwriting pad 2 can be wireless connections, also can connect by cable.As shown in Figure 1, the schematic appearance for the present invention shows the coordinate location device of trace information in real time comprises: PORT COM 1, be used for handwriting pad 2 and computing machine are coupled together, and in the present embodiment USB interface, this device is connected with computing machine by USB interface.Handwriting pad 2 is used to detect the positional information that time writer writes thereon and is converted to coordinate information, and by PORT COM coordinate information is sent to computing machine.The upper surface of handwriting pad 2 is coated with the cholesteryl liquid crystal film 201 that shows trace information when being used to carry out the track input, and the area of cholesteryl liquid crystal film 201 is not less than the effective coverage 202 of handwriting pad 2.When the input of trace information was carried out in the effective coverage 202 of handwriting pad 2, time writer can produce pressure on cholesteryl liquid crystal film 201, stay writing thereby make on the cholesteryl liquid crystal film 201; Time writer and handwriting pad 2 produce electromagnetic induction simultaneously, and handwriting pad 2 can send to computing machine by PORT COM 1 with the coordinate information of time writer.
Fig. 2 is the cut-open view of effective coverage of the coordinate location device of real-time demonstration trace information of the present invention.Also be coated with soft diaphragm 203 on the cholesteryl liquid crystal film 201 of coordinate location device, the cholesteryl liquid crystal film sets gradually printed circuit board (PCB) 205, shielding material 206 and the handwriting pad drain pan 207 of handwriting pad upper casing 204, handwriting pad 2 for 201 times.The printed circuit board (PCB) 205 of handwriting pad upper casing 204, handwriting pad, shielding material 206 and handwriting pad drain pan 207 have constituted the main part of handwriting pad 2.
Cholesteryl liquid crystal film 201 is by pasting or the mode of special-purpose machinery structure buckle covers effective coverage 202 on the handwriting pad upper casing 204, and cholesteryl liquid crystal film 201 also can be fixed with handwriting pad upper casing 204 by rigid materials such as acrylics.When time writer carries out track when input on handwriting pad 2, soft diaphragm 203 can prevent that time writer scratches cholesteryl liquid crystal film 201 under the situation of Overexertion with time writer and cholesteryl liquid crystal film 201 from physically separating.Soft diaphragm 203 also can combine with cholesteryl liquid crystal film 201.
The printed circuit board (PCB) 205 of handwriting pad is sub-control circuit and antenna two parts logically, and antenna is used for induced electricity magnetic pen signal, and the time writer signal is handled by control circuit.Antenna part comprises the effective coverage 202 of handwriting pad 2, carries out coordinate information when input, loop in the time writer and antenna generation electromagnetic induction with time writer in effective coverage 202.Specific markers can be done in effective coverage that the antenna correspondence 202 in handwriting pad upper casing 204, such as with particular color or significantly indicate.Cholesteryl liquid crystal film 201 covers effective coverage 202 fully.Shielding material 206 is not more than antenna, is not less than the effective coverage 202 of the handwriting pad 2 of antenna correspondence.The electromagnetic signal shielding that shielding material 206 produces printed circuit board (PCB) 205, the signal radiation that has produced when having stoped handwriting pad 2 work, and shielding material 206 is with the electromagnetic signal radiation shield of shielding material 206 outsides, thereby avoided the outside electromagnetic signal influence that 205 work cause to printed circuit board (PCB), guaranteed hand-written stability and consistance.In addition, also can there be packing material between printed circuit board (PCB) 205 and the shielding material 206.
Cholesteryl liquid crystal film 201 becomes planar texture from focal conic texture under the effect of time writer, promptly stay the track of bright attitude at the cholesteryl liquid crystal film 201 of dark attitude, but make cholesteryl liquid crystal film 201 return to focal conic texture from planar texture, promptly eliminate the track of bright attitude, then need correspondent control circuits to provide cls voltage for cholesteryl liquid crystal film 201.
As shown in Figure 3, both are separate for the cholesteryl liquid crystal film control circuit 301 of cholesteryl liquid crystal film 201 and the main control circuit in the handwriting pad 2 302, the cholesteryl liquid crystal film control circuit 301 that is used for cls utilizes the first main MCU3011 to control, and the main control circuit 302 of handwriting pad being imported control utilizes the second main MCU3021 to control.
As shown in Figure 4, be second embodiment of the present invention synoptic diagram.In this embodiment, the second main MCU3021 of main control circuit 302 is connected by the IO mouth with the first main MCU3011 of cholesteryl liquid crystal film control circuit 301, and the information that the IO mouth sends the second main MCU3021 is delivered to the first main MCU3011 control cholesteryl liquid crystal film control circuit and carries out cls.The IO mouth can be general IO, also can be interfaces such as serial ports, SPI mouth.
As shown in Figure 5, be third embodiment of the present invention synoptic diagram.In this embodiment, cholesteryl liquid crystal film control circuit 301 is incorporated in the main control circuit 302, both shared one second main MCU3021, the second main MCU3021 control cholesteryl liquid crystal film control circuit 301 carries out the cls operation, and control input control circuit 302 detects the coordinate that time writer produces.
Can provide handwriting information to computing machine simultaneously again at explicit user writing in real time in the works when the electromagnetic type handwriting pad that shows in real time trace information writes the user, promptly meet people's writing style, realize the computing machine typing of writing again.
It should be noted that the foregoing description is example just to being convenient to explanation.Those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. coordinate location device that shows in real time input trajectory, this device is provided with positional information that is used for the detection coordinates indicator and the main control circuit that is converted to coordinate information, this device transmits signal by PORT COM to computing machine, it is characterized in that, the upper surface of coordinate location device is coated with the cholesteryl liquid crystal film, is used for the trace information of real-time displaing coordinate indicator input.
2. device as claimed in claim 1 is characterized in that, also is provided with cholesteryl liquid crystal film control circuit in the coordinate location device, in order to eliminate the trace information on the cholesteryl liquid crystal film.
3. device as claimed in claim 1 is characterized in that, described cholesteryl liquid crystal film covers the effective coverage of coordinate location device upper surface.
4. device as claimed in claim 1 is characterized in that, also is coated with soft diaphragm on the described cholesteryl liquid crystal film, is used to prevent that coordinate indicator from scratching the cholesteryl liquid crystal film.
5. as any described device of claim 1-4, it is characterized in that described cholesteryl liquid crystal film covers on the upper surface of coordinate location device by the mode of stickup or physical construction buckle.
6. device as claimed in claim 2 is characterized in that, main control circuit and cholesteryl liquid crystal film control circuit are independent mutually, and main control circuit is connected with cholesteryl liquid crystal film control circuit by the IO interface and carries out communication.
7. device as claimed in claim 2 is characterized in that, cholesteryl liquid crystal film control circuit is integrated in the main control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100932626A CN102033633A (en) | 2009-09-24 | 2009-09-24 | Coordinate positioning device for displaying input locus in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100932626A CN102033633A (en) | 2009-09-24 | 2009-09-24 | Coordinate positioning device for displaying input locus in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102033633A true CN102033633A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100932626A Pending CN102033633A (en) | 2009-09-24 | 2009-09-24 | Coordinate positioning device for displaying input locus in real time |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014031503A1 (en) * | 2012-08-23 | 2014-02-27 | Microsoft Corporation | Integrated force localizer and digitizer and/or lcd drive for cholesteric liquid crystal display |
| CN106201028A (en) * | 2016-06-30 | 2016-12-07 | 深圳市绘王动漫科技有限公司 | Liquid crystal display screen handwriting pad, liquid crystal display screen handwriting device and electronic equipment |
| CN107066153A (en) * | 2017-04-21 | 2017-08-18 | 深圳市屏柔科技有限公司 | A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved |
-
2009
- 2009-09-24 CN CN2009100932626A patent/CN102033633A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014031503A1 (en) * | 2012-08-23 | 2014-02-27 | Microsoft Corporation | Integrated force localizer and digitizer and/or lcd drive for cholesteric liquid crystal display |
| CN106201028A (en) * | 2016-06-30 | 2016-12-07 | 深圳市绘王动漫科技有限公司 | Liquid crystal display screen handwriting pad, liquid crystal display screen handwriting device and electronic equipment |
| CN107066153A (en) * | 2017-04-21 | 2017-08-18 | 深圳市屏柔科技有限公司 | A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved |
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Application publication date: 20110427 |