CN101212630A - Automatic SCART interface switching method - Google Patents
Automatic SCART interface switching method Download PDFInfo
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- CN101212630A CN101212630A CNA2006101709133A CN200610170913A CN101212630A CN 101212630 A CN101212630 A CN 101212630A CN A2006101709133 A CNA2006101709133 A CN A2006101709133A CN 200610170913 A CN200610170913 A CN 200610170913A CN 101212630 A CN101212630 A CN 101212630A
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- television set
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Abstract
The invention discloses a method for automatically switching an SCART interface, which comprises the specific steps: firstly, a potential status of an eighth foot of the SCART interface is detected in real time; secondly, when the potential status of the eighth foot becomes a high electric level, the SCART interface channel is automatically switched to; then, a category of signal source from the SCART interface is judged; corresponding decoding channel inside a TV set is controlled to carry out a decoding process for the input signal source and then an outputted and decoded sound-video signal of the TV is further controlled. By adding a processing program for detecting and switching the SCART interface in the TV set processing program, the method for automatically switching the SCART interface can control the input channel of the signal source of the TV set automatically switch to the SCART interface channel when a signal is input in the SCART interface, thus avoiding trouble for user operation brought by the traditional manual switching method, saving operational time of the user, and is convenient to the user for daily use.
Description
Technical field
The invention belongs to technical field of television sets, the function that relates to a kind of TV set software is improved, and specifically, relates to a kind of automatic switching method of SCART interface.
Background technology
The SCART interface is a kind of hybrid interface that includes one road CVBS video signal input terminal, one road rgb signal input terminal, one road S video signal input terminal and one road video signal output terminal in Europe.The switching controls of SCART interface is divided into fast switching and switches two kinds slowly, and its 8th pin is the function selecting pin, is operated in AV pattern, widescreen pattern or TV pattern according to the different television sets of controlling of the height of potential value.The signal source that inserts by the SCART interface can be the Satellite signal from satellite set top box, can be the audio-video signal that sends from audio frequency and video output equipments such as VCR video tape recorders also, can also be the deciphering CANAL+ signal from the deciphering machine top box.
The television set that tradition has a SCART interface in use lacks the automatic detection handoff functionality to the SCART interface signal, when the user watches audio-video signal from the SCART interface at needs, must be manually switched to the SCART signal source, bring certain trouble for user's operation.
Summary of the invention
The present invention must adopt the manual switchover mode to realize selection switching problem to the SCART interface signal in order to solve existing television set, a kind of automatic switching method of brand-new SCART interface signal source is provided, detect in real time by the 8th pin level state the SCART interface, when the SCART interface has the signal source input, automatically switch to the SCART interface, control the audio-video signal of television set demonstration automatically from the SCART interface.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of automatic switching method of SCART interface, concrete steps comprise: at first, detect the potential state of SCART interface the 8th pin in real time; Secondly, when the current potential of the 8th pin becomes high level, automatically switch to the SCART interface channel; Then, judge the signal source kind from the SCART interface, the inner corresponding decoding passage of control television set carries out decoding processing to the signal source of input, and then controls the audio-video signal after the television set output decoder is handled.
In order to realize the automatic switching function of television set, when television set was in holding state, the unit that the potential state of SCART interface the 8th pin is detected in real time worked on; When described detecting unit becomes high level at the current potential that detects the 8th pin, at first send the start-up command signal, the control television set transfers open state to by standby, and the signal source input channel with television set automatically switches on the SCART interface channel then.After this, described detecting unit continues the 8th pin potential state of SCART interface is detected in real time, when the current potential that detects the 8th pin becomes low level by high level, sends the standby command signal, and the control television set transfers holding state to by start.
In order to realize the user to freely the selecting for use of SCART interface automatic switching function, in the OSD of television set menu, be provided with SCART control option, comprise that automatic switching function startupoptions and automatic switching function do not use option; During the automatic switching function startupoptions, detect the potential state of SCART interface the 8th pin in real time, and when the current potential of the 8th pin is high level, carry out automatically switching operation in elected; Otherwise, do not change the original state of television set.
In described automatic switching function startupoptions, difference according to signal source is divided into Satellite, VCR and CANAL+ option, the signal source of picture output devices such as the corresponding respectively signal source from satellite set top box, videocorder and the signal source of deciphering set-top box output.When the option of choosing as the signal source that receives by the SCART interface and user was consistent, the signal source input channel of television set automatically switched on the SCART interface channel.
Limit in the present invention, when television set is in holding state, at first judge in the SCART control option whether chosen the Satellite option; When the user has chosen the Satellite option, and the detecting unit current potential that detects the 8th pin is when becoming high level, control television set Auto Power On, and switch to the SCART interface channel.
Compared with prior art, advantage of the present invention and good effect are: the present invention is by setting up the detection hand-off process program to the SCART interface in the television set process software, the signal source input channel that can control television set when the SCART interface has the signal input automatically switches on the SCART interface channel, thereby the trouble of having avoided the conventional manual changing method to bring to user's operation, save user's operating time, made things convenient for user's daily use.
Description of drawings
Fig. 1 is the software flow block diagram of SCART automatic interface switching method among the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done explanation in further detail.
The present invention is automaticallyed switch to the signal source from the SCART interface in order to realize, when the SCART interface has signal terminal to insert, the control television set shows the audio, video data from SCART interface signal source automatically, to reach the purpose of user-friendly use, the software implementation method that provides a kind of SCART interface to automatically switch specifically may further comprise the steps:
1-1, detect the potential state of SCART interface the 8th pin in real time;
1-2, when the current potential of the 8th pin becomes high level, automatically switch to the SCART interface channel;
1-3, judge the signal source kind from the SCART interface, the inner corresponding decoding passage of control television set carries out decoding processing to the signal source of input, and then the audio-video signal of control television set output decoder after handling.
Can adopt the detection of SCART interface the 8th pin (function selecting pin) potential state special testing circuit to be set in television set inside to realize, can also connect by the abundant GPIO mouth of cpu chip in the television set decoding deck and realize.
In order further to simplify the operation of user to television set, the present invention has also further realized the automatic switching function of television set on the basis of SCART automatic interface switching method, specifically may further comprise the steps:
2-1, when television set is in holding state, detecting unit detects in real time to the potential state of SCART interface the 8th pin;
When 2-2, detecting unit became high level at the current potential that detects the 8th pin, the CPU in the television set decoding deck sent the start-up command signal;
2-3, CPU control television set transfers open state to by holding state;
The signal source input channel of 2-4, CPU control television set switches on the SCART interface channel;
2-5, television set are controlled its display screen and the loudspeaker plays signal number certificate from the SCART interface;
2-6, detecting unit continue the 8th pin potential state of SCART interface is detected in real time, when the current potential that detects the 8th pin becomes low level by high level, send the standby command signal to CPU;
2-7, CPU control television set transfers holding state to by start.
In order to realize the user to freely the selecting for use of SCART interface automatic switching function, in the OSD of television set menu, be provided with SCART CONTROL control option, comprise that automatic switching function startupoptions and automatic switching function do not use option NOT USED.Wherein, in the automatic switching function startupoptions, difference according to signal source, specifically comprise three options of Satellite, VCR and CANAL+, the signal source of picture output devices such as the corresponding respectively signal source from satellite set top box, videocorder and the signal source of deciphering set-top box output, the user can pass through UI Preferences SCART type of signal source.When having chosen the automatic switching function startupoptions in the described SCART CONTROL control option, detecting unit detects the potential state of SCART interface the 8th pin in real time, when the 8th pin is high level, judge whether the signal source that is received by the SCART interface is consistent with the option that the user chooses; If consistent, then carry out automatically switching operation, television for play is from the signal number certificate of SCART interface; If inconsistent, then do not change the original state of television set.
Set in the present invention, the automatic switching function of television set is only carried out when the signal source by the input of SCART interface is the Satellite signal.
Fig. 1 shows the handling process of SCART automatic interface switching method of the present invention, specifically may further comprise the steps:
Whether 3-1, detection SCART interface automatic switching function are enabled, if do not enable NOT USED, then keep the original state of television set, and withdraw from automatic switching program;
The current potential of 3-2, detection SCART interface the 8th pin is if low level then repeats this step;
3-3, judge that the signal source that receives from the SCART interface is whether consistent with the signal type chosen the SCART CONTROL control option,, then keep the original state of television set, and jump to 3-8 if inconsistent;
3-4, if when the signal source that receives is VCR or CANAL+ signal, judge whether television set is in holding state, if jump to 3-8; Otherwise, switch to the SCART passage, and jump to 3-7;
3-5, if the signal source that receives is the Satellite signal, judge whether television set is in holding state, if, television set Auto Power On then, and switch to the SCART passage; Otherwise, be directly switch to the SCART passage, and jump to 3-7;
The current potential of 3-6, detection SCART interface the 8th pin if become low level, is then controlled the television set automatic stand-by, and is jumped to 3-8; Otherwise, repeat this step;
The current potential of 3-7, detection SCART interface the 8th pin, if become low level, the signal source input channel of then switching television set is to original passage;
3-8, end are automaticallyed switch.
The present invention is by adopting above-mentioned SCART automatic interface switching method, make the electronic equipment in the user family realize the relevance operation, the user need not television set is carried out complex operations, when the SCART interface is carried out plug, promptly finished the automatic switching function of signal source, operating process is convenient and swift.
Certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (7)
1. the automatic switching method of a SCART interface may further comprise the steps:
A, detect the potential state of SCART interface the 8th pin in real time;
B, when the current potential of the 8th pin becomes high level, automatically switch to the SCART interface channel;
C, judge the signal source kind from the SCART interface, the inner corresponding decoding passage of control television set carries out decoding processing to the signal source of input, and then the audio-video signal of control television set output decoder after handling.
2. the automatic switching method of SCART interface according to claim 1 is characterized in that: when television set was in holding state, the unit that the potential state of SCART interface the 8th pin is detected in real time worked on; When described detecting unit becomes high level at the current potential that detects the 8th pin, at first send the start-up command signal, the control television set transfers open state to by standby, and the signal source input channel with television set automatically switches on the SCART interface channel then.
3. the automatic switching method of SCART interface according to claim 2, it is characterized in that: when television set is when triggering Auto Power On by described detecting unit, when the current potential that detects the 8th pin at described detecting unit becomes low level, send the standby command signal, the control television set transfers holding state to by start.
4. according to the automatic switching method of claim 1 or 2 or 3 described SCART interfaces, it is characterized in that: in the OSD of television set menu, be provided with SCART control option, comprise that automatic switching function startupoptions and automatic switching function do not use option; During the automatic switching function startupoptions, detect the potential state of SCART interface the 8th pin in real time, and when the current potential of the 8th pin is high level, carry out automatically switching operation in elected; Otherwise, do not change the original state of television set.
5. the automatic switching method of SCART interface according to claim 4, it is characterized in that: in described automatic switching function startupoptions, difference according to signal source is divided into Satellite, VCR and CANAL+ option, the signal source of the corresponding respectively signal source from satellite set top box, recording and/or reproducing apparatus and the signal source of deciphering set-top box; When the option of choosing as the signal source that receives by the SCART interface and user was consistent, the signal source input channel of television set automatically switched on the SCART interface channel.
6. the automatic switching method of SCART interface according to claim 5, it is characterized in that: when television set is in holding state, at first judge whether to have chosen the Satellite option, when the user has chosen the Satellite option, and when the current potential that detecting unit detects the 8th pin becomes high level, control television set Auto Power On, and switch to the SCART interface channel.
7. the automatic switching method of SCART interface according to claim 6, it is characterized in that: in described automatic switching function startupoptions, if choose VCR or CANAL+ option, then when the SCART interface had the signal source input, the television set that is in holding state kept original state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101709133A CN101212630A (en) | 2006-12-25 | 2006-12-25 | Automatic SCART interface switching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101709133A CN101212630A (en) | 2006-12-25 | 2006-12-25 | Automatic SCART interface switching method |
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| CN101212630A true CN101212630A (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006101709133A Pending CN101212630A (en) | 2006-12-25 | 2006-12-25 | Automatic SCART interface switching method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898580A (en) * | 2016-04-29 | 2016-08-24 | 广东长虹电子有限公司 | Multipath SCART channel intelligent switching method and television employing same |
| CN107566773A (en) * | 2017-09-21 | 2018-01-09 | 中新国际电子有限公司 | A kind of method of television mode switching |
-
2006
- 2006-12-25 CN CNA2006101709133A patent/CN101212630A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898580A (en) * | 2016-04-29 | 2016-08-24 | 广东长虹电子有限公司 | Multipath SCART channel intelligent switching method and television employing same |
| CN107566773A (en) * | 2017-09-21 | 2018-01-09 | 中新国际电子有限公司 | A kind of method of television mode switching |
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Open date: 20080702 |