CN101179684A - Channel searching method capable of identifying automatically color standard and voice standard - Google Patents
Channel searching method capable of identifying automatically color standard and voice standard Download PDFInfo
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- CN101179684A CN101179684A CNA2006100700377A CN200610070037A CN101179684A CN 101179684 A CN101179684 A CN 101179684A CN A2006100700377 A CNA2006100700377 A CN A2006100700377A CN 200610070037 A CN200610070037 A CN 200610070037A CN 101179684 A CN101179684 A CN 101179684A
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Abstract
The invention provides a channel searching method for automatically identifying color system and sound system. The technical proposal adopts a default sound system firstly and conducts the following operation: A. an existed channel is confirmed; B. a program of automatically identifying color and sound is started up; C. the sound system is identified first and is determined as DK, BG, I or M, an output system of high frequency sound is set as an identified system, and then the color system is identified; D. a frequency point, the color system and the sound system are saved; E. the system of high frequency sound is reset as the default system as DK and the channel number is increased by 1; F. the operation from B to F is repeated; and G. when the frequency value exceeds 870 M Hertz, the channel searching is finished. The invention automatically identifies and saves the TV color system and sound system during channel reaching so as to realize the automatic identification of color system and sound system by the TV.
Description
Technical field
The present invention is the channel search method of a kind of automatic identification S-SYSTEM and sound standard.
Background technology
The TV signal S-SYSTEM is divided into PAL, SECAM, NTSC etc., the sound standard is divided into DK, BG, I, L/L ', M etc., to influence that the image of TV is normal to be shown and sound is normally exported if TV signal S-SYSTEM and sound standard are provided with mistake in television set, the S-SYSTEM and the sound standard of country variant and area employing are not quite similar at present, do not knowing that TV makes under the situation of land used like this, S-SYSTEM and sound standard adopt two kinds of methods 1 in TV, the user forces standard, 2, discern automatically when changing platform.First kind of mode needs user's manual switchover, run into the user who does not understand TV and can not know how to select, when particularly there is several standard some countries and regions, the second way can make TV increase judgement time when changing platform, and occur the erroneous judgement situation sometimes, and can't distinguish the platform that the sound standard is DK and L/L '.
Summary of the invention
Identification TV S-SYSTEM and sound standard and storage automatically realized the automatic identification of TV to S-SYSTEM and sound standard when platform was searched in utilization of the present invention.
Technical scheme of the present invention is carried out following operation at first adopting the default sound standard:
A, control tuner change from the low frequency to the high frequency successively, and detect line synchronizing signal, if line synchronizing signal is arranged, detect tuner AFC (AFC voltage value) again, determine that this frequency is the platform of an existence;
B, startup colored identification and sound automatic identification procedure automatically;
C, first sound recognition standard are judged as DK or BG or I or M, the standard that tuner voice output standard is set to identify; Discern S-SYSTEM again, be judged as PAL or NTSC (3.58M) or NTSC (4.43M);
D, storing frequencies point, S-SYSTEM, sound standard;
E, tuner sound standard is re-set as acquiescence standard such as DK, platform number adds 1;
The operation of F, repetition B to F;
When G, frequency values surpass the 870M hertz, search platform and finish.
When not having the sound standard to be the area of platform of L or L ' such as non-France, Luxembourg, Switzerland national, such scheme of the present invention can directly discern each sound standard and S-SYSTEM automatically in TV signal, and can the platform that identify be stored, thereby reduce the trouble brought in use to the user because of the method for channel selection that S-SYSTEM and sound standard can't correctly be set automatically greatly, and guarantee the accuracy of channel selection.
Owing in the French TV signal SECAM L/L ' signal is arranged, its surrounding countries such as Luxembourg, Switzerland also can search out the platform of the SECAM L/L ' of France's emission, and sound standard DK and L, L ' can't discern differentiation automatically, need specify by the user, thus a national choice menus can be designed, when the user is set to France, Luxembourg, Switzerland, need identification L, L ', otherwise need not discern L, L '.At this moment, the particular content of step C is:
Elder generation's sound recognition standard is confirmed as DK or BG or I or M after identification; The standard that tuner voice output standard is set to identify; Discerning S-SYSTEM again, is PAL or SECAM or NTSC (3.58M) or NTSC (4.43M) through recognition and verification; If S-SYSTEM is SECAM, and the sound standard is DK, judge again whether the user is chosen as France, Luxembourg, Switzerland in the national choice menus, then force in this way to assert that the sound standard is L.
Owing in the French TV signal SECAM L/L ' signal is arranged, its identification is comparatively special, therefore, if TV make land used be France, Luxembourg, Switzerland the time, then before said procedure begins, must once be provided with by force national choice menus, it is made as France, Luxembourg or Switzerland by the user, can clearly whether need to judge L, L ' like this.
Because the sound standard is the platform of L/L ' when being set as other standards, its synchronizing signal can be disorderly, so not necessarily all find in the above-mentioned steps again, for guaranteeing to search all sidedly the TV signal that can receive, after the TV signal of having searched for non-L and L ', should search for the signal of L and L ', its concrete steps are as follows again:
In step G, before frequency values surpasses the 870M hertz, searches platform and finish, judge country selects the user whether to elect France, Luxembourg, Switzerland as, if then proceed following step:
A ', control tuner change from the low frequency to the high frequency successively, and detect line synchronizing signal; When frequency values during less than the 100M hertz tuner sound standard be set to L ', otherwise be made as L; If line synchronizing signal is arranged, determine the frequency of tuner AFC, be defined as the platform of an existence;
B ', startup colored identification and sound automatic identification procedure automatically;
C ', elder generation start the sound automatic identification procedure,
If judge that the sound standard is BG or I or M, then abandon storing this that searches out, enter step D ';
If judge that the sound standard is L or L ', then start colored identification automatically; If S-SYSTEM is PAL or NTSC (3.58M) or NTSC (4.43M), then abandon storing this that searches out, enter step D ';
D ', repeating step A ', B, C ';
E ', when frequency values surpasses 870M, the information of the platform that searches out is sorted from small to large by frequency values, search platform and finish.
In above-mentioned C ' step, if S-SYSTEM is identified as SECAM, the frequency values of the platform of storage before then searching, if and the frequency values difference of this platform that searches is in 1M up and down, then think same, and the position that current frequency values, S-SYSTEM, sound standard are deposited the platform of former storage, when the foreground number constant; Otherwise deposit the position when the foreground, number add 1 when the foreground then, can reduce repeated storage like this, repeating step A ', B ', C ' and this step, when frequency values surpasses the 870M hertz, the information of the platform that searched out is sorted one time from small to large by frequency values, search platform and finish.
Advantage of the present invention is: can discern S-SYSTEM and sound standard automatically when searching platform, also can fine compatibility for the platform of state SECAM L/L ' such as France, and do not have repetition platform, sequence consensus.This method can adapt to all over the world, solves the different regions TV and needs different channel search method problems.
Embodiment
Embodiment one:
Present embodiment specifically to search the platform step as follows:
1, tuner sound standard is set to give tacit consent to standard, as DK;
2, the control tuner is changed to high frequency by low frequency successively from 43M, and detects line synchronizing signal, if line synchronizing signal is arranged, detects tuner AFC (AFC voltage value) again, if be median, determines that this frequency is the platform of an existence;
3, start colored identification and sound automatic identification procedure automatically, and wait for 50 to 200 milliseconds time, make tuner output stable, prevent erroneous judgement,
4, first sound recognition standard is judged as DK or BG or I or M, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds again, makes the image color decoding stable; Discern S-SYSTEM again, be identified as PAL or SECAM or NTSC (3.58M) or NTSC (4.43M);
5, storing frequencies point, S-SYSTEM, sound standard;
6, tuner sound standard is re-set as DK, platform number adds 1;
7, the operation of repetition 1 to 6;
When 8, frequency values has been expired above the platform of 870M hertz or storage, search platform and finish.
Embodiment two:
Present embodiment specifically to search the platform step as follows:
1, national choice menus is set, is set to France, Luxembourg, Switzerland, search before the platform by the user and select once.
2, tuner sound standard is set to give tacit consent to standard, as DK;
3, the control tuner is changed to high frequency by low frequency successively from 43M, and detects line synchronizing signal, if line synchronizing signal is arranged, detects tuner AFC (AFC voltage value) again, if be median, determines that this frequency is the platform of an existence;
4, start colored identification and sound automatic identification procedure automatically, and wait for 50 to 200 milliseconds, make tuner output stable, prevent erroneous judgement;
5, first sound recognition standard is judged as BG or I or M, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds, makes the image color decoding stable; Discern S-SYSTEM again, if be judged as PAL or SECAM or NTSC (3.58M) or NTSC (4.43M), the sound standard is constant;
Perhaps, first sound recognition standard is judged as DK, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds, makes the image color decoding stable; Discern S-SYSTEM again, if be judged as PAL or NTSC (3.58M) or NTSC (4.43M), the sound standard is constant;
Perhaps first sound recognition standard is judged as DK, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds, makes the image color decoding stable; Discern S-SYSTEM again, if be judged as SECAM, if country is chosen as France, Luxembourg, Switzerland, then the sound standard is forced to L;
6, storing frequencies point, S-SYSTEM, sound standard;
7, tuner sound standard is re-set as DK, platform number adds 1;
8, the operation of repetition 2 to 7;
When 9, frequency values surpasses the 870M hertz, judge country's selection
10, if judge that it is not France, Luxembourg, Switzerland that country is selected, and searches platform and finishes.
Embodiment three:
Present embodiment specifically to search the platform step as follows:
1, tuner sound standard is set to give tacit consent to standard, as DK;
2, the control tuner is changed to high frequency by low frequency successively from 43M, and detects line synchronizing signal, if line synchronizing signal is arranged, detects tuner AFC (AFC voltage value) again, if be median, determines that this frequency is the platform of an existence;
3, start colored identification and sound automatic identification procedure automatically, and wait for 50 to 200 milliseconds, make tuner output stable, prevent erroneous judgement;
4, first sound recognition standard is judged as DK or BG or I or M, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds again, makes the image color decoding stable; Discern S-SYSTEM again, if be judged as PAL or NTSC (3.58M) or NTSC (4.43M);
5, storing frequencies point, S-SYSTEM, sound standard;
6, tuner sound standard is re-set as DK, platform number adds 1;
7, the operation of repetition 1 to 6;
When 8, frequency values surpasses the 870M hertz, judge country's selection;
9, if judge that country is chosen as France, Luxembourg, Switzerland; Then control tuner and change successively to high frequency by low frequency, and detect line synchronizing signal from 43M; When frequency values during less than the 100M hertz tuner sound standard be set to L ', otherwise be made as L; If line synchronizing signal is arranged, detect tuner AFC (AFC voltage value) again, if be median, determine that this frequency is the platform of an existence;
10, start the sound automatic identification procedure;
11, if judge that the sound standard is BG or I or M, then abandon storing this that searches out, enter step 12;
12, repeating step 9 to 11;
13, when frequency values surpasses 870M, the information of the platform that searches out is sorted from small to large by frequency values, search platform and finish.
Embodiment four:
Present embodiment specifically to search the platform step as follows:
1, tuner sound standard is set to DK;
2, the control tuner is changed to high frequency by low frequency successively from 43M, and detects line synchronizing signal, if line synchronizing signal is arranged, detects tuner AFC (AFC voltage value) again, if be median, determines that this frequency is the platform of an existence;
3, start colored identification and sound automatic identification procedure automatically, and wait for 50 to 200 milliseconds, make tuner output stable, prevent erroneous judgement;
4, first sound recognition standard is judged as DK or BG or I or M, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds again, makes the image color decoding stable; Discern S-SYSTEM again, if be judged as PAL or SECAM or NTSC (3.58M) or NTSC (4.43M);
5, storing frequencies point, S-SYSTEM, sound standard;
6, tuner sound standard is re-set as DK, platform number adds 1;
7, the operation of repetition 1 to 6;
When 8, frequency values surpasses the 870M hertz, judge country's selection;
9, if judge that country is chosen as France, Luxembourg, Switzerland; Then control tuner and change successively to high frequency by low frequency, and detect line synchronizing signal from 43M; When frequency values during less than the 100M hertz tuner sound standard be set to L ', otherwise be made as L; If line synchronizing signal is arranged, detect tuner AFC (AFC voltage value) again, if be median, determine that this frequency is the platform of an existence;
10, start the sound automatic identification procedure;
11,, then start colored identification automatically if judge that the sound standard is L;
12, if S-SYSTEM is PAL or NTSC (3.58M) or NTSC (4.43M), then abandon storing this that searches out, enter step 13;
13, repeating step 9 to 12;
14, when frequency values surpasses 870M, the information of the platform that searches out is sorted from small to large by frequency values, search platform and finish.
Embodiment five:
Present embodiment specifically to search the platform step as follows:
1, tuner sound standard is set to DK;
2, the control tuner is changed to high frequency by low frequency successively from 43M, and detects line synchronizing signal, if line synchronizing signal is arranged, detects tuner AFC (AFC voltage value) again, if be median, determines that this frequency is the platform of an existence;
3, start colored identification and sound automatic identification procedure automatically, and wait for 50 to 200 milliseconds, make tuner output stable, prevent erroneous judgement;
4, first sound recognition standard is judged as DK or BG or I or M, and the standard that tuner voice output standard is set to identify is waited for 50 to 200 milliseconds again, makes the image color decoding stable; Discern S-SYSTEM again, if be judged as PAL or SECAM or NTSC (3.58M) or NTSC (4.43M);
5, storing frequencies point, S-SYSTEM, sound standard;
6, tuner sound standard is re-set as DK, platform number adds 1;
7, the operation of repetition 1 to 6;
When 8, frequency values surpasses the 870M hertz, judge country's selection;
9, if judge that country is chosen as France, Luxembourg, Switzerland; Then control tuner and change successively to high frequency by low frequency, and detect line synchronizing signal from 43M; When frequency values during less than the 100M hertz tuner sound standard be set to L ', otherwise be made as L; If line synchronizing signal is arranged, detect tuner AFC (AFC voltage value) again, if be median, determine that this frequency is the platform of an existence;
10, start the sound automatic identification procedure;
11,, then start colored identification automatically if judge that the sound standard is L;
12, if S-SYSTEM is identified as SECAM, the frequency values of the platform of storage before then searching, if and the frequency values difference of this platform that searches is in 1M up and down, then think same, and the position that current frequency values, S-SYSTEM, sound standard are deposited the platform of former storage, platform is number constant; Otherwise deposit the position when the foreground, platform number adds 1;
13, repeating step 9 to 12; 14, when frequency values surpasses 870M, the information of the platform that searches out is sorted from small to large by frequency values, search platform and finish.
Claims (4)
1. automatic channel search method of identification S-SYSTEM and sound standard, it is characterized in that: it may further comprise the steps:
A, control tuner change from the low frequency to the high frequency successively, and detect line synchronizing signal, if line synchronizing signal is arranged, detect tuner AFC (AFC voltage value) again, determine that this frequency is the platform of an existence;
B, startup colored identification and sound automatic identification procedure automatically;
C, first sound recognition standard are confirmed as DK or BG or I or M, the standard that tuner voice output standard is set to identify after identification; Discern S-SYSTEM again, confirm as PAL or SECAM or NTSC (3.58M) or NTSC (4.43M) through judgement;
D, storing frequencies point, S-SYSTEM, sound standard;
E, tuner sound standard is re-set as the acquiescence standard, platform number adds l;
The operation of F, repetition B to F;
When G, frequency values have been expired above the platform number of 870M hertz or storage, search platform and finish.
2. the channel search method of automatic identification S-SYSTEM according to claim 1 and 1 sound standard, it is characterized in that: it is the platform of L or L ' that the sound standard is arranged in TV signal, perhaps TV makes land used relate to France, Luxembourg, Switzerland, national choice menus at first is set before carrying out abovementioned steps A, and it is set to France, Luxembourg, Switzerland's option;
Step C is that first sound recognition standard is confirmed as DK or BG or I or M, the standard that tuner voice output standard is set to identify after identification; Discerning S-SYSTEM again, is PAL or SECAM or NTSC (3.58M) or NTSC (4.43M) through recognition and verification; If S-SYSTEM is SECAM, and the sound standard is DK, judge again whether the user is chosen as France, Luxembourg, Switzerland in the national choice menus, then force in this way to assert that the sound standard is L.
3. the channel search method of automatic identification S-SYSTEM according to claim 1 and 2 and sound standard, it is characterized in that: in step G, before frequency values surpasses the 870M hertz, searches platform and finish, judge whether country's selection that the user sets is France, Luxembourg, Switzerland, if then carry out following step:
A ', earlier tuner sound standard is set, when frequency values during less than the 100M hertz tuner sound standard be set to L ', otherwise be made as L; The control tuner changes from the low frequency to the high frequency successively, and detects line synchronizing signal; If line synchronizing signal is arranged, detect tuner AFC (AFC voltage value) again, determine that this frequency is the platform of an existence;
B ', startup colored identification and sound automatic identification procedure automatically;
C ', elder generation start the sound automatic identification procedure, if judge that the sound standard is BG or I or M, this that then abandon searching out enters D ';
Perhaps
Start the sound automatic identification procedure earlier,, then start colored identification automatically if judge that the sound standard is L; If S-SYSTEM is PAL or NTSC (3.58M) or NTSC (4.43M), this that then abandon searching out enters step D ';
D ', repeating step A ', B, C ';
E ', when frequency values surpasses 870M, the information of the platform that searches out is sorted from small to large by frequency values, search platform and finish.
4. the channel search method of automatic identification S-SYSTEM according to claim 3 and sound standard, it is characterized in that: in aforementioned C ' step, if the sound standard is L or L ', S-SYSTEM is identified as SECAM, the frequency values of the platform of storage before then searching, if and the frequency values difference of this platform that searches is in 1M up and down, then think same, and the position that current frequency values, S-SYSTEM, sound standard are deposited the platform of former storage, otherwise deposit position when the foreground as the platform that newly searches out; Platform number adds 1 then, and repeating step A ', B ', C ' and this step when frequency values surpasses the 870M hertz, sort the information of the platform that searched out one time by frequency values from small to large, search platform and finish.
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| CN2006100700377A CN101179684B (en) | 2006-11-06 | 2006-11-06 | Channel searching method capable of identifying automatically color standard and voice standard |
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| CN102123261A (en) * | 2010-01-11 | 2011-07-13 | 康佳集团股份有限公司 | Television as well as channel search method and system thereof |
| CN102202197A (en) * | 2011-05-25 | 2011-09-28 | 广州视源电子科技有限公司 | A kind of channel program searching method and television set |
| CN103686424A (en) * | 2013-12-13 | 2014-03-26 | 深圳Tcl新技术有限公司 | Automatic setting method and device for sound system |
| CN105681887A (en) * | 2015-06-10 | 2016-06-15 | 深圳Tcl数字技术有限公司 | Television channel searching method and device |
| CN109194895A (en) * | 2018-10-19 | 2019-01-11 | 晶晨半导体(上海)股份有限公司 | Television board, television system and television system configuration method |
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| KR970007887B1 (en) * | 1994-11-30 | 1997-05-17 | Samsung Electronics Co Ltd | Tuner device for multi broadcasting receiver |
| JPH08205048A (en) * | 1995-01-25 | 1996-08-09 | Mitsubishi Electric Corp | Automatic tuning device |
| FR2881014A1 (en) * | 2005-01-14 | 2006-07-21 | Thomson Licensing Sa | DEVICE AND METHOD FOR RECEIVING DIGITAL CHANNELS EMITTED AT SPECIFIC FREQUENCIES IN A SPECTRAL AREA COMMON TO ANALOG CHANNEL TRANSMISSION |
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| CN102123261B (en) * | 2010-01-11 | 2015-06-10 | 康佳集团股份有限公司 | Television as well as channel search method and system thereof |
| CN102202197A (en) * | 2011-05-25 | 2011-09-28 | 广州视源电子科技有限公司 | A kind of channel program searching method and television set |
| CN103686424A (en) * | 2013-12-13 | 2014-03-26 | 深圳Tcl新技术有限公司 | Automatic setting method and device for sound system |
| CN103686424B (en) * | 2013-12-13 | 2017-06-13 | 深圳Tcl新技术有限公司 | The automatic setting method and device of sound system |
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| CN105681887B (en) * | 2015-06-10 | 2018-09-04 | 深圳Tcl数字技术有限公司 | TV channel search method and device |
| CN109194895A (en) * | 2018-10-19 | 2019-01-11 | 晶晨半导体(上海)股份有限公司 | Television board, television system and television system configuration method |
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| CN111385614A (en) * | 2018-12-29 | 2020-07-07 | 深圳Tcl数字技术有限公司 | Voice system identification method, storage medium and smart television |
| CN111385614B (en) * | 2018-12-29 | 2022-05-06 | 深圳Tcl数字技术有限公司 | Voice system identification method, storage medium and smart television |
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Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Patentee before: HISENSE ELECTRIC Co.,Ltd. |