CN1761299A - Method for automatical selecting video channel - Google Patents
Method for automatical selecting video channel Download PDFInfo
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- CN1761299A CN1761299A CN 200510021808 CN200510021808A CN1761299A CN 1761299 A CN1761299 A CN 1761299A CN 200510021808 CN200510021808 CN 200510021808 CN 200510021808 A CN200510021808 A CN 200510021808A CN 1761299 A CN1761299 A CN 1761299A
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Abstract
Relevant program is solidified on microcontroller in TV set. Switch for video navigation function is setup in menu of TV set. Pressing video selection key starts the said program. microcontroller executes following steps: receiving command for selecting video channel automatically; executing operation for switching to next video channel; detecting whether switch of video navigation function is on; detecting whether there is signal input in current video channel; executing operation for switching to next video channel; detecting whether current video channel is a TV channel. The invention raises intelligent degree, possessing features of novel conception, simple method, easy of operation and reliable functions. After plugging signal line to video input end and inputting signal, if user presses video selection key only once, TV set can switch to video channel, where there is input signal, automatically. The invention is suitable to high clear TV set with many AV video input ends.
Description
Technical field
The present invention relates to be used in the television system receiver circuit parts of display additional information, especially relate to a kind of method of automatic selection video channel.
Background technology
The function selecting of existing color television set all is after being accepted remote control command that remote controller corresponding function key sends or acceptance and be arranged on the control command that the corresponding function key sends on this machine side plate by microcontroller MCU, carry out corresponding control programs according to this instruction, the output control signal corresponding, the control television set is realized certain function.Select at present the method for AV video channel generally to have two kinds: a kind of is one by one by video key Switch Video passage, up to choose own desired video passage, a kind of be to be introduced into the video channel choice menus, button is selected video channel again.And present television set particularly the AV video channel quantity of HDTV is more, comprising sorting successively in advance at least two group composite video AV terminal of TV video way of output back, SVHS terminal (being S-VIDEO), DTV terminal (comprising HDTV, SDTV), VGA terminal (being RGB) etc.The user adopts with above-mentioned two kinds of video channel selection modes, generally all needs repeatedly button to carry out the video switch operation, just can choose own desired video passage, and time-consuming effort again is very inconvenient.The video channel quantity of television set the more, corresponding operation is just more wasted time and energy.
Summary of the invention
Technical problem to be solved by this invention is to remedy the defective that has more loaded down with trivial details video channel selection mode now, proposes a kind of method of automatic selection video channel.
Technical problem of the present invention is solved like this:
The method of this automatic selection video channel, comprise all AV video inputs of television set cyclic ordering successively, the TV video inputs is provided with the video channel options button respectively for circulation end at the whole story on remote controller and/or TV set panel, MCU solidifies corresponding program at the television set microcontroller.
The characteristics of the method for this automatic selection video channel are:
The video navigation functional switch is set in TV menu;
Described program is the program of pushing the automatic selection video channel of described video options button startup, and following steps are arranged successively:
1) microcontroller MCU receives the instruction of automatic selection video channel;
2) microcontroller MCU carries out and switches to next video channel action;
3) whether microcontroller MCU detection video navigation functional switch is opened, and if not, program so far finishes, if continue next step;
Whether 4) microcontroller MCU detects the current video passage the signal input, if signal is arranged, program so far finishes, if there is not signal, just skips this video channel automatically and continues next step;
5) microcontroller MCU carries out and switches to next video channel action;
6) microcontroller MCU detects whether the current video passage is the TV passage, if not, returns step 4), if EP (end of program) promptly jumps back to the TV video channel corresponding with the TV video input terminal of cyclic ordering end automatically.
Technical problem of the present invention is to solve according to qualifications like this:
Described microcontroller MCU is the microcontroller with C51 nuclear, OSD display module, analog-to-digital conversion module and row field sync signal counter.
Described C51 nuclear includes external interrupt, timer conter, is used to receive remote control command.
Described OSD display module is used for the TV menu Presentation Function.
Described analog-to-digital conversion module is used to receive the keying instruction and carries out analog-to-digital conversion.
Described capable field sync signal counter is used for calculating in real time current line field synchronization quantity, and microcontroller MCU will judge whether work as prepass has signal according to this quantity.
Technical problem of the present invention is further to solve like this:
Described microcontroller is that model is the microcontroller of SM602, is produced by Huaya Microelectronics Co., Ltd. (Huaya Microelectronics Inc).
The inventive method is based on the television set of microcontroller MCU as main control chip, solidify corresponding program at microcontroller MCU, the video navigation functional switch is set on TV menu, when the video navigation functional switch is selected to open, press the video channel options button on remote controller and/or TV set panel, the video channel of signal input will be searched for and forward in system automatically.When can not find the video channel end of signal input, system will get back to the TV video channel automatically.
The inventive method is a kind of brand-new video switch mode, can further improve the intelligent degree of television set, has novelly, and method is simple, and is easy to operate, the characteristics of reliable in function.Be particluarly suitable for applying in a fairly large number of HDTV of AV video inputs, the user plugs holding wire and input signal at the video inputs mouth, only need by a video channel options button, television set just can automatically switch to the video channel of signal input.
Description of drawings
Below the contrast accompanying drawing and in conjunction with embodiment the present invention is further detailed explanation:
Accompanying drawing is the automatic selection video channel schematic flow sheet of an embodiment of the present invention.
Embodiment
A kind of method that is applied in the automatic selection video channel of the 29T83HT of Skyworth type color television set
The method of this automatic selection video channel, comprise that cyclic ordering is as follows successively: TV → AV1 → AV2 → SVHS → DTV → VGA → TV with all AV video inputs of television set, the TV video inputs is circulation end at the whole story, the video channel options button is set respectively on remote controller and/or TV set panel, in the Core of TV set model is that SM602 microcontroller MCU among the 6T18 solidifies corresponding program, and the video navigation functional switch is set in TV menu, the SM602 microcontroller is carried out the video navigation function by remote control or keying instruction.
Described program is the program of pushing the automatic selection video channel of described video options button startup, as shown in drawings, following steps is arranged successively:
1) microcontroller MCU receives the instruction of automatic selection video channel;
2) microcontroller MCU carries out and switches to next video channel action;
3) whether microcontroller MCU detection video navigation functional switch is opened, and if not, program so far finishes, if continue next step;
4) whether microcontroller MCU has the signal input by the capable field sync signal detection current video passage that received signal modulus conversion chip MST9883 separates, if signal is arranged, program so far finishes, if there is not signal, just skips this video channel automatically and continues next step;
5) microcontroller MCU carries out and switches to next video channel action;
6) microcontroller MCU detects whether the current video passage is the TV passage, if not, returns step 4), if EP (end of program) promptly jumps back to the TV video channel corresponding with the TV video input terminal of cyclic ordering end automatically.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (3)
1. method of automatically selecting video channel, comprise all AV video inputs of television set cyclic ordering successively, the TV video inputs is circulation end at the whole story, the video channel options button is set respectively on remote controller and/or TV set panel, solidify corresponding program at the television set microcontroller, it is characterized in that:
The video navigation functional switch is set in TV menu;
Described program is the program of pushing the automatic selection video channel of described video options button startup, and following steps are arranged successively:
1) microcontroller receives the instruction of automatic selection video channel;
2) microcontroller is carried out and is switched to next video channel action;
3) whether microcontroller detection video navigation functional switch is opened, and if not, program so far finishes, if continue next step;
Whether 4) microcontroller detects the current video passage the signal input, if signal is arranged, program so far finishes, if there is not signal, just skips this video channel automatically and continues next step;
5) microcontroller is carried out and is switched to next video channel action;
6) microcontroller detects whether the current video passage is the TV passage, if not, returns step 4), if EP (end of program) promptly jumps back to the TV video channel corresponding with the TV video input terminal of cyclic ordering end automatically.
2. according to the method for the described automatic selection video channel of claim 1, it is characterized in that:
Described microcontroller is the microcontroller with C51 nuclear, OSD display module, analog-to-digital conversion module and row field sync signal counter.
3. according to the method for claim 1 or 2 described automatic selection video channels, it is characterized in that:
Described microcontroller is that model is the microcontroller of SM602.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510021808 CN1761299A (en) | 2005-09-29 | 2005-09-29 | Method for automatical selecting video channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510021808 CN1761299A (en) | 2005-09-29 | 2005-09-29 | Method for automatical selecting video channel |
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| CN1761299A true CN1761299A (en) | 2006-04-19 |
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| CN 200510021808 Pending CN1761299A (en) | 2005-09-29 | 2005-09-29 | Method for automatical selecting video channel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010015201A1 (en) * | 2008-08-07 | 2010-02-11 | 海尔集团公司 | Method and apparatus for selecting video channel, video device and tv device |
| CN101668152B (en) * | 2008-09-05 | 2012-07-04 | 深圳Tcl新技术有限公司 | Device and method for accessing portable media player |
| CN101150695B (en) * | 2006-09-22 | 2012-07-25 | 乐金电子(中国)研究开发中心有限公司 | A device and method for automatically monitoring outside top input interface of TV set |
| CN103685984A (en) * | 2013-12-30 | 2014-03-26 | 天津三星电子有限公司 | Video signal source automatic switching method and television |
| CN106412462A (en) * | 2015-07-31 | 2017-02-15 | 青岛海信电器股份有限公司 | Play signal output control method and play equipment |
-
2005
- 2005-09-29 CN CN 200510021808 patent/CN1761299A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150695B (en) * | 2006-09-22 | 2012-07-25 | 乐金电子(中国)研究开发中心有限公司 | A device and method for automatically monitoring outside top input interface of TV set |
| WO2010015201A1 (en) * | 2008-08-07 | 2010-02-11 | 海尔集团公司 | Method and apparatus for selecting video channel, video device and tv device |
| CN101668152B (en) * | 2008-09-05 | 2012-07-04 | 深圳Tcl新技术有限公司 | Device and method for accessing portable media player |
| CN103685984A (en) * | 2013-12-30 | 2014-03-26 | 天津三星电子有限公司 | Video signal source automatic switching method and television |
| CN106412462A (en) * | 2015-07-31 | 2017-02-15 | 青岛海信电器股份有限公司 | Play signal output control method and play equipment |
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