CN101252641A - Television set video frequency terminal port recognizing and on-off checking method - Google Patents
Television set video frequency terminal port recognizing and on-off checking method Download PDFInfo
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- CN101252641A CN101252641A CNA2008103005923A CN200810300592A CN101252641A CN 101252641 A CN101252641 A CN 101252641A CN A2008103005923 A CNA2008103005923 A CN A2008103005923A CN 200810300592 A CN200810300592 A CN 200810300592A CN 101252641 A CN101252641 A CN 101252641A
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Abstract
The invention relates to a television, in particular to a television video port identification and switch detection method for facilitating the user to control and switch different video ports. Aiming at the problem that the operations for the user to control and switch different video ports are complicated and inconvenient when the television is externally connected with a plurality of video ports, the invention discloses a television video port identification and switch detection method. The method includes the following steps: 1, detecting each video port and judge if synchronous signals are existed, if the judging result is yes go to step 2 and if the judging result is no go to step 3; 2, the television is started up to the video port with signals if the television is in the stand-by state, identifies video signals and is switched to the video port with signals if the television is on; 3, the television is in stand-by state in a certain time. The invention which is applied for televisions has the advantages that the method simplifies the operations that the user controls and switches different video ports and facilitates the user to use the plurality of external video ports of the television.
Description
Technical field
The present invention relates to television set, particularly identification of a kind of video port of television set of external a plurality of video ports and on-off checking method.
Background technology
Along with constantly advancing of television technologies, the also corresponding appearance of various technology and product, general user's family all has DVD, multiple player such as DVB is connected on the television set and uses, and this just need use a plurality of remote controllers to carry out switching on and shutting down or to operations such as the video port that signal is arranged switch simultaneously.Along with popularizing gradually of Digital Television, a plurality of video ports of television set external connection are as AV, YPbPr, YCbCr, VGA etc.The user at every turn will use a plurality of remote controllers to control respectively and switches different video ports in use, make like this when the user uses loaded down with trivial details, very inconvenience.
Summary of the invention
Technical problem to be solved by this invention is that during at a plurality of video port of television set external connection, user's control and loaded down with trivial details, the inconvenient problem of switching different video port operation provide a kind of television set video frequency terminal port identification and on-off checking method.
The technical scheme that the present invention solve the technical problem employing is that television set video frequency terminal port identification and on-off checking method is characterized in that, comprise the following steps;
A, detect each video port, judged whether synchronizing signal, if then enter step b; Otherwise enter step c;
B, if the television set standby, the video port of the signal of then starting shooting;
If television boot-strap, identification video signal then switches to the video port of signal;
Television set standby in c, the certain hour;
Further, among the described step a, the CPU register of television set detects each video port, if detect synchronizing signal, then described register holds flag bit;
Further, among the described step b, if television boot-strap, identification video signal and point out the user to select to switch then.
The invention has the beneficial effects as follows that the operation of having simplified user's control and having switched the different video port is user-friendly to a plurality of video ports of television set external connection.
Description of drawings
Fig. 1 is the workflow diagram of embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As shown in Figure 1, be that example is described enforcement workflow of the present invention with CRT television set external connection DVB, DVD etc.After opening the CRT television set, the CPU internal register of CRT television set passes through AV, YPbPr, YCbCr, whether video ports such as VGA constantly scanning have synchronizing signal to detect each video port, if detect synchronizing signal, then the CPU internal register of CRT television set is preserved a flag bit, carry out the register flag bit locking, thereby confirm by the height of judging CPU internal register flag bit whether each video port has synchronizing signal, if described flag bit is high, then this video port has synchronizing signal; If described flag bit is low, then this video port does not have synchronizing signal.When judging that certain video port has synchronizing signal, if the standby of CRT television set, then Auto Power On is to the video port that signal is arranged; If CRT television boot-strap, identification video signal and switch to the video port of signal then, under CRT television boot-strap state, when finding that certain video port has synchronizing signal, can point out the user to select to switch earlier, be provided with in the CRT TV menu and whether carry out video port prompted dialog frame, acquiescence is chosen as the video port that switches to signal, the user also can select not carry out switching, and then the CRT television set is not done any switching.If each video port all not have to find that synchronizing signal is arranged, then certain hour (as 15 minutes) interior CRT television set standby can be passed through CRT television set standby in the software definition 15 minutes, perhaps adjusts setting by EEPROM.If the user turns off the current video signal, then the CPU of CRT television set detects other video port, and has judged whether synchronizing signal, if having, when the CRT television set was holding state, then Auto Power On was to the video port that signal is arranged; When the CRT television set is open state, identification video signal and switch to the video port of signal then.If do not find synchronizing signal, then certain hour (as 15 minutes) interior CRT television set standby.
Claims (3)
1. television set video frequency terminal port identification and on-off checking method is characterized in that, comprise the following steps;
A, detect each video port, judged whether synchronizing signal, if then enter step b; Otherwise enter step c;
B, if the television set standby, the video port of the signal of then starting shooting;
If television boot-strap, identification video signal then switches to the video port of signal;
Television set standby in c, the certain hour.
2. television set video frequency terminal port identification as claimed in claim 1 and on-off checking method is characterized in that, among the described step a, among the described step a, the CPU register of television set detects each video port, if detect synchronizing signal, then described register holds flag bit.
3. television set video frequency terminal port as claimed in claim 1 or 2 identification and on-off checking method is characterized in that, among the described step b, if television boot-strap, and identification video signal and point out the user to select to switch then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103005923A CN101252641A (en) | 2008-03-14 | 2008-03-14 | Television set video frequency terminal port recognizing and on-off checking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103005923A CN101252641A (en) | 2008-03-14 | 2008-03-14 | Television set video frequency terminal port recognizing and on-off checking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101252641A true CN101252641A (en) | 2008-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103005923A Pending CN101252641A (en) | 2008-03-14 | 2008-03-14 | Television set video frequency terminal port recognizing and on-off checking method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101252641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075719B (en) * | 2009-11-20 | 2012-06-27 | 深圳市九洲电器有限公司 | Audio and video equipment and startup and shutdown method thereof |
| CN105578246A (en) * | 2014-11-10 | 2016-05-11 | 中强光电股份有限公司 | Display device and display method of display device |
-
2008
- 2008-03-14 CN CNA2008103005923A patent/CN101252641A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075719B (en) * | 2009-11-20 | 2012-06-27 | 深圳市九洲电器有限公司 | Audio and video equipment and startup and shutdown method thereof |
| CN105578246A (en) * | 2014-11-10 | 2016-05-11 | 中强光电股份有限公司 | Display device and display method of display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |