CN100527783C - Method of direct screen writing for television system distant end - Google Patents
Method of direct screen writing for television system distant end Download PDFInfo
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- CN100527783C CN100527783C CNB2008100188034A CN200810018803A CN100527783C CN 100527783 C CN100527783 C CN 100527783C CN B2008100188034 A CNB2008100188034 A CN B2008100188034A CN 200810018803 A CN200810018803 A CN 200810018803A CN 100527783 C CN100527783 C CN 100527783C
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- television
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- remote controller
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- coordinate information
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Abstract
A television system far-end off-screen drawing process relates to a process that the television user directly conducts the off-screen drawing in the far end through using a hand-held remote controller, which comprising inputting characters or special symbols, and transmitting the information to the television system which identifies the information and conducts the relative operations, arranging a remote controller which has four software and hardware modules such as laser shot, image capture, signal modulation and light spot location is arranged on the remote controller side, obtaining the coordinate of the light spot relative to the television through capturing the image of the laser which is transmitted by the remote controller on the television screen, and transmitting the coordinate information to the television side with infrared signals, conducting signal reduction and processing for the signals which are modulated through the inner communication transmitting to the intermediate layer of the television system after received by the television to obtain the absolute coordinate information, and drawing the coordinate on the screen through the application layer of the television system.
Description
Technical field
The present invention relates to TV user and use hand-held remote controller directly to write the method for screen at far-end, input character or special symbol, and these information are imported in the television system, discern by television system again, and do corresponding operating.
Background technology
Existing TV remote controller adopts three kinds of input patterns substantially:
1. conventional keys input,
2. the remote controller of similar mouse input,
3. adopt the remote controller handwriting input of handwriting pad,
The place that present prior art problem maybe will be improved:
1. present TV remote controller all is stereotyped on still being input operation from profile, has allowed the user produce aestheticly tired.Can not give prominence to product characteristic in shape.
2. television system can not directly be write screen, and simple button operation can not provide more powerful user interface.
3. see that TV itself is amusement and recreation, see that the room light of TV generally is unfavorable for reading and writing.Adopt mouse, the clipboard input is taken great energy very much.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of method of direct screen writing for television system distant end, adopt direct hand-written character of remote controller or special symbol, and these information are presented on the video screen, in order to more powerful user interface to be provided.
Technical scheme: the method for direct screen writing for television system distant end of the present invention is specially:
Has the remote controller that Laser emission, picture catching, signal modulation and luminous point are located these four module of software and hardware in the employing of remote controller side, drop on the video screen epigraph by catching remote controller institute emitted laser, obtain the coordinate of this luminous point, and this coordinate information is sent to the TV pusher side with infrared signal with respect to television set; After television set receives the signal of this modulation, be sent to the system for TV set intermediate layer by internal communication and carry out signal reduction and processing, obtain absolute coordinate information, the application layer of television system is drawn in this coordinate points on the screen.
The method that seizure remote controller institute emitted laser drops on the video screen epigraph is: send the GTG frame at the initial period remote controller by infrared signal notice system for TV set, and take this GTG two field picture to obtain the position at luminous point place by the image capture device in the remote controller.
Remote controller with coordinate information with the transfer approach that infrared signal is sent to the TV pusher side is: the remote controller side sends to television set with the coordinate with respect to the television display screen curtain of luminous point, and relative coordinate is the ratio value between 0 and 1.
The method that signal reduction and processing are carried out in described system for TV set intermediate layer is:
1) whether the coordinate information that transmits of verification remote controller between " 0,1 ",
2) obtain the size of television screen,
3) size with television screen multiply by the coordinate information that remote controller transmits,
4) obtain the actual coordinate information that luminous point is positioned at screen.
The application layer of described television system with the method that this coordinate points is drawn on the screen is:
1) TV pusher side application layer keeps listening state,
2) the television set intermediate layer is notified the television applications layer by inside story mechanism, and coordinate information is informed the television applications layer with parametric form after obtaining actual coordinate information,
3) the television applications layer is obtained the paintbrush resource,
4) the television applications layer is obtained the control to screen,
5) the television applications layer is drawn a little on television screen.
Beneficial effect: the present invention is specific as follows for the main effect that television system produced:
1. a kind of new man-machine interaction mode is provided, has made that TV user can be by providing input to television system under the pattern of arbitrarily writing.
2. a kind of novel remote controller is provided, and this remote controller has been broken through the key mode of traditional remote controller, has expanded the function of remote controller
3. message transmission mechanism more widely is provided.In the present invention, confirm the input (such as realizing function of search) of complex characters, can realize by the present invention from the luminous point of simple similar click
4. remote control mode more flexibly is provided.In the operation model of simply realizing confirming by luminous point, can develop and the pistol-like remote controller, break through the existing machine-made pattern of remote controller, develop and more interesting remote controller.
Description of drawings
What Fig. 1 showed is the overall framework and the interaction diagrams of invention.
That Fig. 2 shows is the module of software and hardware figure of remote controller.
Fig. 3 shows be the remote controller side because the locating laser point on video screen the position and the energy consumption that causes increases cost and promotes the measure schematic diagram of being taked,
Fig. 4 shows is that television system receives the extra process schematic diagram that information that the remote controller side sends is done.
Embodiment
Step 1: the remote controller side sends the optically focused source to television screen, forms hot spot,
Step 2: the remote controller side obtains the relative coordinate of hot spot in television screen by certain means,
Step 3: the remote controller side transmits this hot spot coordinate in television system,
Step 4: the television system hardware layer receives the coordinate information that the remote controller side transmits, and is sent to the intermediate layer,
Step 5: intermediate layer translation relative coordinate information is the absolute coordinate of current screen, sends application layer to and shows,
Step 6: the coordinate information in the standard time is collected in the intermediate layer, translates, and converts corresponding character or symbol to, carries out standard output.
Below in conjunction with accompanying drawing the utility model is described in further detail.
What Fig. 1 showed is overall framework of the present invention and interaction diagrams.Involved technology point has been distributed in remote controller and two entities of television set.
That Fig. 2 shows is the module of software and hardware figure of remote controller, and as can be seen from Figure, outside traditional remote controller module, new remote controller module is a Laser emission, picture catching and signal modulation, light source location.
The head that camera head is installed in remote controller is with the image information of picked-up in the remote controller forward direction certain angle.Because handwriting input must must comprise the hot spot on television screen housing and the television screen in therefore effective image information in the video screen effective coverage.With the television screen housing is reference system, calculates the relative position of hot spot in screen.Owing to can not determine the actual size of video screen in the picture, but can obtain the relative size of video screen, so being calculated as follows of the relative position of hot spot:
A: hot spot is apart from the actual range of screen left margin in the picture
B: hot spot is apart from the actual range of screen coboundary in the picture
Width; The width of screen in the picture
Height; The height of screen in the picture
Calculated (abscissa, ordinate) coordinate thus, be transmitted in the system for TV set.
What Fig. 3 showed is in order effectively to capture hot spot, reduce the difficulty of hot spot identification in the remote controller, thereby alleviate energy consumption, reduce cost, can be when hand-written, send initialize signal to television system by remote controller, in the time interval that does not cause the viewed obvious flicker of human eye, send a full frame GTG frame in video screen by television system.Identification for image in the remote controller can only be carried out at this width of cloth image, thereby has effectively reduced the identification difficulty.
What Fig. 4 showed is that Signal Processing is transmitted for remote controller in the intermediate layer, for the sake of simplicity, has wherein ignored some fault processing and protection.
Enter when remote controller signal after the intermediate layer of television system, consider the custom of different user, need the input mode of compatible traditional remote controller, therefore need enter judgement the remote controller input signal.For the signal of handwriting input, its form is that (x y), is the form that is different from traditional remote controller.
Next step is for handwriting input, and that need do has two things:
1. instant playback goes out the stroke that the user wishes on screen, and this is the work that the television system application layer need be handled
2. in the intermediate layer the existing stroke of user is carried out pattern recognition, with concrete character or the symbol of determining that the user imports,
For handwriting recognition, existing suitable mature technique can directly be brought use.And can pass through to replace different identification module simple realization for the identification of country variant character, so this scheme has very strong autgmentability.Under very little change, can face country variant market.
The signal processing method of direct screen writing for television system distant end is: have the remote controller that Laser emission, picture catching, signal modulation and luminous point are located these four module of software and hardware in the employing of remote controller side, drop on the video screen epigraph by catching remote controller institute emitted laser, obtain the coordinate of this luminous point, and this coordinate information is sent to the TV pusher side with infrared signal with respect to television set; After television set receives the signal of this modulation, be sent to the system for TV set intermediate layer by internal communication and carry out signal reduction and processing, obtain absolute coordinate information, the application layer of television system is drawn in this coordinate points on the screen.The method that seizure remote controller institute emitted laser drops on the video screen epigraph is: send the GTG frame at the initial period remote controller by infrared signal notice system for TV set, and take this GTG two field picture to obtain the position at luminous point place by the image capture device in the remote controller.Remote controller with coordinate information with the transfer approach that infrared signal is sent to the TV pusher side is: the remote controller side sends to television set with the coordinate with respect to the television display screen curtain of luminous point, and relative coordinate is the ratio value between 0 and 1.The method that signal reduction and processing are carried out in described system for TV set intermediate layer is:
1) whether the coordinate information that transmits of verification remote controller between " 0,1 ",
2) obtain the size of television screen,
3) size with television screen multiply by the coordinate information that remote controller transmits,
4) obtain the actual coordinate information that luminous point is positioned at screen.
The application layer of described television system with the method that this coordinate points is drawn on the screen is:
1) TV pusher side application layer keeps listening state,
2) the television set intermediate layer is notified the television applications layer by inside story mechanism, and coordinate information is informed the television applications layer with parametric form after obtaining actual coordinate information,
3) the television applications layer is obtained the paintbrush resource,
4) the television applications layer is obtained the control to screen,
5) the television applications layer is drawn a little on television screen.
Claims (5)
1. the method for a direct screen writing for television system distant end, it is characterized in that: adopt in the remote controller side to have Laser emission, picture catching, signal modulation and luminous point are located the remote controller of these four module of software and hardware, drop on the video screen epigraph by catching remote controller institute emitted laser, obtain the coordinate of this luminous point with respect to television set, that is: the remote controller side sends the optically focused source to television screen, form hot spot, the image information of picked-up in the remote controller forward direction certain angle, with the television screen housing is reference system, calculate the relative position of hot spot in screen, calculate abscissa and ordinate, and this coordinate information is sent to the TV pusher side with infrared signal; After television set receives the signal of this modulation, be sent to the system for TV set intermediate layer by internal communication and carry out signal reduction and processing, obtain absolute coordinate information, the application layer of television system will be drawn on the screen with the corresponding coordinate points of absolute coordinate information.
2. the method for direct screen writing for television system distant end according to claim 1, it is characterized in that catching the method that remote controller institute emitted laser drops on the video screen epigraph is: send the GTG frame at the initial period remote controller by infrared signal notice system for TV set, and take this GTG two field picture to obtain the position at luminous point place by the image capture device in the remote controller.
3. the method for direct screen writing for television system distant end according to claim 1, it is characterized in that remote controller with coordinate information with the transfer approach that infrared signal is sent to the TV pusher side is: the remote controller side sends to television set with the coordinate with respect to the television display screen curtain of luminous point, and the abscissa of relative coordinate and ordinate are the ratio value of value between 0 and 1.
4. direct screen writing for television system distant end method according to claim 1 is characterized in that signal reduction is carried out in described system for TV set intermediate layer and the method handled is:
1) whether the abscissa and the ordinate of the coordinate of verification remote controller transmission are the ratio value of value between 0 and 1.
2) obtain the size of television screen,
3) size with television screen multiply by the coordinate information that remote controller transmits,
4) obtain the absolute coordinate information that luminous point is positioned at screen.
5. the method for direct screen writing for television system distant end according to claim 1 is characterized in that the application layer of described television system with the method that this coordinate points is drawn on the screen is:
1) TV pusher side application layer keeps listening state,
2) the television set intermediate layer is notified the television applications layer by inside story mechanism, and coordinate information is informed the television applications layer with parametric form after obtaining absolute coordinate information,
3) the television applications layer is obtained the paintbrush resource,
4) the television applications layer is obtained the control to screen,
5) the television applications layer is drawn a little on television screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100188034A CN100527783C (en) | 2008-01-25 | 2008-01-25 | Method of direct screen writing for television system distant end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100188034A CN100527783C (en) | 2008-01-25 | 2008-01-25 | Method of direct screen writing for television system distant end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101227553A CN101227553A (en) | 2008-07-23 |
| CN100527783C true CN100527783C (en) | 2009-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100188034A Expired - Fee Related CN100527783C (en) | 2008-01-25 | 2008-01-25 | Method of direct screen writing for television system distant end |
Country Status (1)
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| CN (1) | CN100527783C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673139B (en) * | 2008-09-10 | 2013-12-04 | Tcl集团股份有限公司 | Remote controller and input system and method thereof |
| CN101800866B (en) * | 2009-12-18 | 2015-06-24 | 康佳集团股份有限公司 | Method for realizing positioning interaction on television display screen and system thereof |
| CN101859481B (en) * | 2010-05-13 | 2012-10-17 | 复旦大学 | Intelligent wireless remote control based on infrared video |
| CN102707839B (en) * | 2011-03-28 | 2015-08-26 | 京东方科技集团股份有限公司 | A kind of display device |
| CN102665122B (en) * | 2012-03-30 | 2014-12-24 | 四川长虹电器股份有限公司 | Television remote control device, television set and remote control method for realizing rapid positioning |
| CN102801935A (en) * | 2012-08-31 | 2012-11-28 | 郑波尽 | Terminal equipment for laser remote control television |
| CN102956098B (en) * | 2012-11-02 | 2014-04-02 | 京东方科技集团股份有限公司 | Long-distance light remote control method, remote control terminal, display device and system |
| CN103885614A (en) * | 2013-09-22 | 2014-06-25 | 天津思博科科技发展有限公司 | STB (set top box) simulate mouse remote controller with light spot identifier |
| CN112712688A (en) * | 2020-12-22 | 2021-04-27 | 惠州视维新技术有限公司 | Remote controller, display device, display remote control system and remote control method thereof |
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2008
- 2008-01-25 CN CNB2008100188034A patent/CN100527783C/en not_active Expired - Fee Related
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| CN101227553A (en) | 2008-07-23 |
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