CN1337611A - Index input system comprising video camera - Google Patents
Index input system comprising video camera Download PDFInfo
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- CN1337611A CN1337611A CN 00121202 CN00121202A CN1337611A CN 1337611 A CN1337611 A CN 1337611A CN 00121202 CN00121202 CN 00121202 CN 00121202 A CN00121202 A CN 00121202A CN 1337611 A CN1337611 A CN 1337611A
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Abstract
The present invention relates to an index input system formed from camera, it is equipped with a pen-shaped mobile light-emitting device whosen pen-point possesses light-emitting diode, said light emitting device can be operated by user and moved, and can be used for emitting two coloured lights, and is also equipped with a camera which is wire-connected with computer device for picking and shooting light emitted by said mobile light-emitting device, discriminating colour of light, and processing and converting the moving trace of light point of said mobile light-emitting device into x and Y coordinate material which can be provided for computer device to implement index input function, so that the user can conveniently make index input and hand-writing input.
Description
The present invention is relevant a kind of index input system, refers to a kind of index input system that constitutes with video camera especially.
Press, present PC is except that using keyboard to carry out the input operation, and also all dispose mouse with as index input device, and by the relative position of detecting this mouse and cooperation corresponding driving software, index on the just removable computer screen of user is to click input, or even carry out form of a stroke or a combination of strokes input via recognition software, thereby make to the operation of computer simple and convenient more.
Yet, on the existing index input device of use, still having many inconveniences, for example normal easy winding of the connecting line of mouse, and mouse can only be used on mouse pad or smooth body surface, and also very not easy to operate when carrying out form of a stroke or a combination of strokes input.
Again, general gradually along with multimedia application disposes for example AV device of video camera gradually on the PC, yet, when computer is to use when for example general document processing etc. need not to use the application of video camera, the video camera that is disposed promptly is in idle state and can't brings into play its function.Therefore, the every outfit for convenience how to improve aforementioned index input device and abundant utilization computer becomes an epochmaking problem then.
The inventor whence originally in the spirit of positive invention, is urgently thought a kind of " with index input system of video camera formation " that can address the above problem because of in this, and several times research experiment is eventually to finishing this novel progressive invention.
The objective of the invention is to carry out index input and handwriting input very easily for the user in that a kind of index input system that constitutes with video camera is provided.
For reaching aforesaid purpose, the index input system that constitutes with video camera of the present invention mainly comprises a removable light-emitting device and one and the video camera of computer apparatus line, this removable light-emitting device is can be operated to move also by the user to send at least two kinds of color of light, this video camera is that fechtable is taken the light that this removable light-emitting device sends, and differentiate the color of light and be XY coordinate data with photograph to the motion track treatment conversion of the luminous point of this removable light-emitting device, for this computer apparatus is carried out the index input function.
Wherein this removable light-emitting device has a light emitting diode with the output luminous point.
Wherein this removable light-emitting device is to be made as the form of a stroke or a combination of strokes, and this light emitting diode is to be arranged at the nib position.
Wherein this removable light-emitting device is to light this light emitting diode to send first kind of color of light when the nib pressurized, so that take and identification for this video camera, and as general index input.
Wherein also be provided with on this removable light-emitting device and have one first button,, light this light emitting diode and send second kind of color of light with when its pressurized, so that for this video camera shooting and identification, and as the same function of left mouse button pressurized.
Wherein also be provided with on this removable light-emitting device and have one second button,, light this light emitting diode and send first and second kind color of light simultaneously with when its pressurized, so that for this video camera shooting and identification, and as the same function of right mouse button pressurized.
Wherein also be provided with on this removable light-emitting device and have one second button,, light this light emitting diode and send the third color of light with when its pressurized, so that for this video camera shooting and identification, and as the same function of right mouse button pressurized.
Wherein more be provided with on this removable light-emitting device and have one the 3rd button,, continue to light this light emitting diode and send first kind of color of light, by then extinguishing,, and import again as general index so that take and identification for this video camera with when its pressurized after.
After the 3rd button pressurized is lighted first kind of color of light, also can to change the light color that is sent, recognize by first button or second button so that supply video camera to take, and as left mouse button or the same function of right button pressurized.
Wherein this video camera is to hold parallel operation, automatic exposure unit, digital signal processor and XY coordinate data extractor by camera lens, image sensor, analog digital to be constituted, being when switching to the mouse video camera when this video camera, this automatic exposure unit is promptly turned down exposure value automatically, this digital signal processor is to being handled by camera lens and the obtained luminous point of image sensor, to produce corresponding R, G, the B data, again with R, G, the signal of three channels of B is delivered to this XY coordinate data extractor 36, to produce the coordinate position data.
Wherein this video camera also comprises the computer interface control module and is connected to this computer apparatus for valency.
Wherein this video camera also comprises horizontal/vertical synchronization and scans clock pulse generator, so that clock signals such as the required pixel clock pulse of video camera operation, horizontal-drive signal, vertical synchronizing signal to be provided.
Wherein this XY coordinate data extractor comprises that a background suppresses circuit, is made of several subtracters, with when this video camera is detected a kind of luminous point of particular color, with these subtracters other color of light is decayed.
Wherein this XY coordinate data extractor also comprises an accurate comparer, distinguishes so that the output signal of this background inhibition circuit is differentiated to weave the light emitting diode light trajectory signal.
Wherein this XY coordinate data extractor also comprises XY counting and address tracking latch circuit, is to receive this light emitting diode light trajectory signal, differentiates the position of optical track mark signal on two dimension to trigger a counter, and is pinned storage.
Wherein this XY coordinate data extractor comprises that also a data follows the trail of the extraction circuit, is the two-dimensional position data that receives this optical track mark signal, with automatic differentiation and switch to 3 * 3 or 5 * 5 matrixes, and takes out the accurate optical track mark data that central point is used as index.
Wherein this XY coordinate data extractor also comprises an XY vector operation circuit, be to receive this accurate optical track mark data, calculating its light emitting diode light track vector data, and pass to the mobile data of this computer apparatus as the mouse index signal via this computer interface control module.
Because modern design of the present invention can provide on the industry and utilize, and truly have the enhancement effect, so apply for patent of invention in accordance with the law.
For making your juror can further understand structure of the present invention, feature and purpose thereof, the attached now detailed description with graphic and preferred embodiment as after, wherein:
Fig. 1 is the user mode figure of the index input system that constitutes with video camera of the present invention.
Fig. 2 is the structural drawing according to the removable light-emitting device of index input system of the present invention.
Fig. 3 is the functional block diagram according to the video camera of index input system of the present invention.
Fig. 4 is the circuit structure diagram according to the XY coordinate data extractor of video camera of the present invention.
The preferred embodiment of the relevant index input system that constitutes with video camera of the present invention, please be earlier with reference to shown in Figure 1, its mainly be utilize one with the video camera 11 of PC line or other image capture unit, and the removable light-emitting device 12 as pointer, and constitute an index input system, so that PC is carried out the input of index by the position of these video camera 11 these removable light-emitting devices 12 of acquisition detecting, wherein, this removable light-emitting device 12 is that the shape that preferably is made into as pen grips mobile for the user, and one light emitting diode 121 (LED) is set with as light emitting source at the one end, this video camera 11 is preferably to be configured in personal host computer 13, or on the display 14, or other suitable positions.
This video camera 11 can be for carrying out the application of general multimedia image, the image that for example absorbs the user is to carry out image processing, audio-visual conversation or video conference etc., and turn to shooting when the removable light-emitting device 12 of the last operation of body surface (for example desktop) is imported to carry out index when switching, be that image sensor by video camera 11 has R, G, the function of look is got in the B beam split, it is transferred to be mouse function, that is control software and hardware to arrange in pairs or groups, and utilize this have can monochrome or the removable light-emitting device 12 of color-changed LED 121 as pointer, then this video camera 11 can photograph the accurate position of the height output signal to the motion track of this LED121 luminous point, and to the XY coordinate data input function that hits the target to handle of transferring.
Fig. 2 shows the structural representation of the removable light-emitting device 12 of this form of a stroke or a combination of strokes, it has LED121 with the output luminous point at the nib place, and a spring 122 is set in penholder inside, so that when the nib pressurized conducting one switch 123, so that light this LED121 with start one on-off circuit 124, wherein, this LED121 can send green, red two kinds of light (or can send green, red, blue three kinds of light), and when these switch 123 conductings, this on-off circuit 124 is to drive this LED121 to send green light, shooting and identification through this video camera 11, and as general index input (can be general input by selecting redness also), and on the pen two buttons 125 and 126 can be set, with when a key 125 pressurizeds wherein, then this on-off circuit 124 is to drive this LED121 to send red light, shooting and identification through this video camera 11, can be used as function as the left mouse button pressurized, again when another key 126 pressurizeds, this on-off circuit 124 is to drive this LED121 to send red light and green light simultaneously, shooting and identification through this video camera 11, the effective the same function of right button pressurized of analog mouse then, in addition, this LED121 also can change over and send blue light, the situation of analog mouse right button pressurized with the identification of collocation video camera 11.
Again should and the pen on a button 127 also can be set again, with behind its pressurized, this on-off circuit 124 is to drive this LED121 to continue to send green light, by this, also the removable light-emitting device 12 of this form of a stroke or a combination of strokes can be pressed on body surface and move, and to push this button and arbitrarily to move this removable light-emitting device 12 and carry out general index input.And behind these button 127 pressure spot bright green light, but pressing keys 125 or 126 more changes the light color that is sent to make this on-off circuit 124 drive these LED121, so that take identification for video camera, and as left mouse button or the same function of right button pressurized.
Fig. 3 is the functional block diagram for this video camera 11, mainly include camera lens 31, image sensor 32, analog-digital converter 33, automatic exposure unit 34, digital signal processor 35, XY coordinate data extractor 36, PC interface control module 37, and horizontal/vertical synchronization scan clock pulse generator 38 etc., wherein, to scan clock pulse generator 38 be in order to provide video camera 11 operation required pixel clock pulse (pixelclock), horizontal-drive signal (HSYNC), vertical synchronizing signal clock signals such as (VSNC) to this horizontal/vertical synchronization.
Cooperate PC to carry out in the operation of index input with this video camera 11, can be by the hot key on PC to switch this video camera 11 as commonness photograph machine or mouse video camera, and when switching to the mouse video camera, PC head is positioned index for screen central authorities, and seeing through PC interface control module 37 with its interface bus, to switch this video camera 11 be mouse mode, at this moment, this automatic exposure unit 34 is promptly turned down exposure value automatically, so that effectively distinguish luminous point and the background noise of LED121, and this digital signal processor 35 is promptly to being handled by camera lens 31 and image sensor 32 obtained luminous points, to produce corresponding R, G, the B data is again with R, G, the signal of three channels of B send and are listed as this XY coordinate data extractor 36.
Please refer to shown in Figure 4, this XY coordinate data extractor 36 is that the built-in background that is constituted with several subtracters 411 suppresses circuit 41, with when detecting a kind of luminous point of particular color, can other color of light be decayed these subtracters 411, thereby make more effective the separating of signal of LED121 optical track mark, and the output signal that this background suppresses circuit 41 through the accurate comparer 42 in position differentiating, and pick out LED optical track mark signal.
This LED optical track mark signal is delivered to the XY counting again and latch circuit 43 is followed the trail of in the address, to trigger by pixel clock, HSYNC, the counter that VSYNC drove, differentiate the position of optical track mark signal on two dimension, and pinned storage, and the two-dimensional position data of this optical track mark signal is followed the trail of extraction circuit 44 through data again, with automatic differentiation and switch to 3 * 3 or 5 * 5 matrixes, and the taking-up central point is used as the accurate track data of index, in view of the above, can solve the problem that a LED luminous point might focus on and be imaged on several factors on the image sensor 32, and obtain R, G, the accurate optical track mark of the LED data of three colors of B.
And this R, G, the accurate optical track mark of the LED data of three colors of B is again through the processing of XY vector operation circuit 45, with under the control of VSYNC, calculate its LED optical track mark vector data, and can decide H/V whether to overturn the device direction of matching camera 11 according to setting, in view of the above, R, G, the LED optical track mark vector data of three colors of B just passes to the mobile data of PC as the mouse index signal via this PC interface control module 37, wherein, this PC interface control module 37 can be differentiated R, G, the having or do not have of the LED optical track mark vector data of three colors of B, the index state of representative when deciding various color combinations for example, has only the green vector data to be that representative is general and moves, have only the data represented right button of red vector to drape over one's shoulders and pin, on behalf of left button, green redness all has then pinned.
The sampling of above-mentioned optical track mark vector data is controlled by VSYNC, therefore be that each picture frame (frame) is taken a sample once, so sample rate is 30 or 60 frame/sec, and the vector data of each picture frame is that starting point is described the track vector with the crossover point with previous picture frame all.
By above explanation as can be known, the present invention utilizes the video camera of tool beam split and coordinate position extraction function 11 and an index input system very easily is provided as the removable light-emitting device 12 of pointer, the user can as use as the mouse the removable light-emitting device 12 of this form of a stroke or a combination of strokes of move operation carry out the index input, and be not limited on mouse pad or smooth body surface, operate, there is not the problem that the mouse line is brought inconvenience yet, even can move this removable light-emitting device 12 aloft to carry out the index input, in addition, index input system provided by the present invention itself promptly is a kind of form of a stroke or a combination of strokes input system, hardware that need not be extra as long as collocation handwriting identification function just can be carried out handwriting input.
To sum up institute is old, and no matter the present invention is all showing it totally different in the feature of known techniques with regard to purpose, means and effect, is the quantum jump in the design of index input system, earnestly asks your juror to perceive, and grants quasi patent early, so that Jiahui society, the true feeling moral just.Only it should be noted that above-mentioned many embodiment give an example for convenience of explanation, the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (17)
1. an index input system that constitutes with video camera is characterized in that, mainly comprises:
One removable light-emitting device, it is can be operated to move also by the user to send at least two kinds of color of light; And:
One with the video camera of computer apparatus line, its fechtable is taken the light that this removable light-emitting device sends, and differentiate the color of light and be XY coordinate data with photograph to the motion track treatment conversion of the luminous point of this removable light-emitting device, for this computer apparatus is carried out the index input function.
2. the index input system that constitutes with video camera according to claim 1 is characterized in that, wherein this removable light-emitting device has a light emitting diode with the output luminous point.
3. the index input system that constitutes with video camera according to claim 2 is characterized in that wherein this removable light-emitting device is to be made as the form of a stroke or a combination of strokes, and this light emitting diode is to be arranged at the nib position.
4. the index input system that constitutes with video camera according to claim 3, it is characterized in that, wherein this removable light-emitting device is to light this light emitting diode to send first kind of color of light when the nib pressurized, so that take and identification for this video camera, and as general index input.
5. the index input system that constitutes with video camera according to claim 4, it is characterized in that, wherein also be provided with on this removable light-emitting device and have one first button, with when its pressurized, light this light emitting diode and send second kind of color of light, so that take and identification for this video camera, and as the same function of left mouse button pressurized.
6. the index input system that constitutes with video camera according to claim 5, it is characterized in that, wherein also be provided with on this removable light-emitting device and have one second button, with when its pressurized, light this light emitting diode and send first and second kind color of light simultaneously, so that take and identification for this video camera, and as the same function of right mouse button pressurized.
7. the index input system that constitutes with video camera according to claim 5, it is characterized in that, wherein also be provided with on this removable light-emitting device and have one second button, with when its pressurized, light this light emitting diode and send the third color of light, so that take and identification for this video camera, and as the same function of right mouse button pressurized.
8. the index input system that constitutes with video camera according to claim 3, it is characterized in that, wherein more be provided with on this removable light-emitting device and have one the 3rd button, with behind its pressurized, continue to light this light emitting diode and send first kind of color of light, by then extinguishing,, and import again as general index so that take and identification for this video camera.
9. the index input system that constitutes with video camera according to claim 8, it is characterized in that, after the 3rd button pressurized is lighted first kind of color of light, also can be by first button or second button, to change the light color that is sent, so that take identification for video camera, and as left mouse button or the same function of right button pressurized.
10. the index input system that constitutes with video camera according to claim 1, it is characterized in that, wherein this video camera is by camera lens, image sensor, analog digital is held parallel operation, the automatic exposure unit, digital signal processor and XY coordinate data extractor constitute, being when switching to the mouse video camera when this video camera, this automatic exposure unit is promptly turned down exposure value automatically, this digital signal processor is to being handled by camera lens and the obtained luminous point of image sensor, to produce corresponding R, G, the B data, again with R, G, the signal of three channels of B is delivered to this XY coordinate data extractor 36, to produce the coordinate position data.
11. the index input system that constitutes with video camera according to claim 10 is characterized in that, wherein this video camera also comprises the computer interface control module and is connected to this computer apparatus for valency.
12. the index input system that constitutes with video camera according to claim 10, it is characterized in that, wherein this video camera also comprises horizontal/vertical synchronization and scans clock pulse generator, so that clock signals such as the required pixel clock pulse of video camera operation, horizontal-drive signal, vertical synchronizing signal to be provided.
13. the index input system that constitutes with video camera according to claim 12, it is characterized in that, wherein this XY coordinate data extractor comprises that a background suppresses circuit, constituted by several subtracters, with when this video camera is detected a kind of luminous point of particular color, other color of light are decayed with these subtracters.
14. the index input system that constitutes with video camera according to claim 13, it is characterized in that, wherein this XY coordinate data extractor also comprises an accurate comparer, distinguishes so that the output signal of this background inhibition circuit is differentiated to weave the light emitting diode light trajectory signal.
15. the index input system that constitutes with video camera according to claim 14, it is characterized in that, wherein this XY coordinate data extractor also comprises XY counting and address tracking latch circuit, be to receive this light emitting diode light trajectory signal, differentiate the position of optical track mark signal on two dimension to trigger a counter, and pinned storage.
16. the index input system that constitutes with video camera according to claim 15, it is characterized in that, wherein this XY coordinate data extractor also comprises data tracking extraction circuit, it is the two-dimensional position data that receives this optical track mark signal, with automatic differentiation and switch to 3 * 3 or 5 * 5 matrixes, and take out the accurate optical track mark data that central point is used as index.
17. the index input system that constitutes with video camera according to claim 16, it is characterized in that, wherein this XY coordinate data extractor also comprises an XY vector operation circuit, be to receive this accurate optical track mark data, calculating its light emitting diode light track vector data, and pass to the mobile data of this computer apparatus as the mouse index signal via this computer interface control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001212028A CN1152291C (en) | 2000-08-04 | 2000-08-04 | Index input system comprising video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001212028A CN1152291C (en) | 2000-08-04 | 2000-08-04 | Index input system comprising video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1337611A true CN1337611A (en) | 2002-02-27 |
| CN1152291C CN1152291C (en) | 2004-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001212028A Expired - Lifetime CN1152291C (en) | 2000-08-04 | 2000-08-04 | Index input system comprising video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1152291C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630213B (en) * | 2008-08-22 | 2013-07-10 | 李兴文 | Optical touch screen, optical touch screen light source and touch pen |
| CN103235656A (en) * | 2009-08-17 | 2013-08-07 | 李兴文 | Remote touch pen and matched touch screen |
| CN103399672A (en) * | 2009-08-17 | 2013-11-20 | 上海科斗电子科技有限公司 | Optical touch screen and touch pen combination system |
| CN103399673B (en) * | 2009-08-17 | 2016-12-28 | 上海科斗电子科技有限公司 | Contact felt pen and supporting touch-screen system thereof |
| CN103399671B (en) * | 2009-08-17 | 2017-11-21 | 上海科斗电子科技有限公司 | Double-camera touch screen system and its felt pen |
-
2000
- 2000-08-04 CN CNB001212028A patent/CN1152291C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630213B (en) * | 2008-08-22 | 2013-07-10 | 李兴文 | Optical touch screen, optical touch screen light source and touch pen |
| CN103235656A (en) * | 2009-08-17 | 2013-08-07 | 李兴文 | Remote touch pen and matched touch screen |
| CN103399672A (en) * | 2009-08-17 | 2013-11-20 | 上海科斗电子科技有限公司 | Optical touch screen and touch pen combination system |
| CN103235656B (en) * | 2009-08-17 | 2016-01-20 | 上海聚然智能科技有限公司 | Remote touch pen and supporting touch-screen system thereof |
| CN103399672B (en) * | 2009-08-17 | 2016-10-05 | 上海科斗电子科技有限公司 | Optical touch screen system and felt pen combined system |
| CN103399673B (en) * | 2009-08-17 | 2016-12-28 | 上海科斗电子科技有限公司 | Contact felt pen and supporting touch-screen system thereof |
| CN103399671B (en) * | 2009-08-17 | 2017-11-21 | 上海科斗电子科技有限公司 | Double-camera touch screen system and its felt pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1152291C (en) | 2004-06-02 |
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Owner name: XUYAO SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LINGYANG SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20130219 |
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Effective date of registration: 20130219 Address after: Chinese Taiwan Hsinchu Science Park Dusing Road No. 6 4 floor Patentee after: Xuyao Science and Technology Co., Ltd. Address before: China Taiwan Hsinchu county science park innovation all the way No. 19 Patentee before: Lingyang Science and Technology Co., Ltd. |
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Granted publication date: 20040602 |