CN102710980A - Method and device for rapidly changing channel of digital television set top box - Google Patents
Method and device for rapidly changing channel of digital television set top box Download PDFInfo
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- CN102710980A CN102710980A CN2012101427753A CN201210142775A CN102710980A CN 102710980 A CN102710980 A CN 102710980A CN 2012101427753 A CN2012101427753 A CN 2012101427753A CN 201210142775 A CN201210142775 A CN 201210142775A CN 102710980 A CN102710980 A CN 102710980A
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Abstract
The invention relates to the field of digital television set top boxes and discloses a method for rapidly changing a channel of a digital television set top box. The method comprises the following steps that: the set top box comprises at least one tuner, corresponding transport streams of the tuner are output to a demultiplexing module of the set top box; and a remote control signal receiving module receives the current frequency point, one tuner carries out frequency locking on the current frequency point, the tuner is set to be the current tuner, a master control chip controls the demultiplexing module of the set top box to output decoded codes of the current program, and other tuners respectively carry out frequency locking on nearby frequency points of the current program. The invention also disclosed a device for rapidly changing the channel of the digital television set top box. When a user changes the channel, TS (transport stream) of the next frequency point is output, program decoding is directly carried out, then the program can be watched, and time for setting parameters and locking frequency is saved, thus buffer time of only 0.5 second is required for changing from one channel to another channel, and user experience is enhanced.
Description
Technical field
The present invention relates to DTV STB, relate in particular to a kind of method and device of DTV STB fast channel switching.
Background technology
DTV STB makes simulated television turn to interactive digital TV from passive reception simulated television; Like video request program etc., and can enter the Internet, make the user enjoy omnibearing information services such as TV, data, language; Along with digital technology, multimedia technology and development of internet technology; The DTV STB function will be progressively perfect, and it can change into television content with compressed digital signal, and on television set, shows.Signal can be from wire cable, satellite antenna, broadband network and terrestrial broadcasting.The image that the content that STB receives can provide except simulated television, the sound; More be to receive data content; Comprise electronic program guides, internet webpage, captions or the like; Make the user on existing television set, watch digital television program, and can carry out interactive digital amusement, education and commercialization activity through network.Though DTV STB has many benefits, in the prior art, the switching between the different frequent points goes out program and needs several seconds from switching to descrambling, is generally about 2 seconds, and can give a kind of tangible pause sense of user this moment.Therefore though DTV STB has many benefits, however the user use maximum when changing the platform operation speed slow, " deadtime " in several seconds arranged, have a strong impact on user's operating experience.
Summary of the invention
The objective of the invention is the technical problem that there be " deadtime " in platform of changing, a kind of method and device of DTV STB fast channel switching is provided to above-mentioned DTV STB existence.
The object of the invention is realized through following technical proposals:
A kind of method of DTV STB fast channel switching, it specifically may further comprise the steps: said STB comprises at least one tuner, the MPTS that said tuner is corresponding all outputs to the STB demultiplexing module; Remote control signal receiving module receives current frequency; One of them tuner carries out frequency locking to current frequency; This tuner is set to current tuner; Master control chip controls STB demultiplexing module is exported the program decoding of current program, and other tuners carry out frequency locking near the frequency the current program respectively.
Preferably, the quantity of above-mentioned tuner is 3, and a tuner is separated timing to current frequency therein, and two other tuner carries out demodulation to the program of former and later two frequencies of current frequency respectively.
Preferably; Remote control signal receiving module receive change station information after; The program decoding that the master control chip is corresponding according to the frequency signal controlling STB demultiplexing module output that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output, and other tuner carries out frequency locking near the frequency the current program respectively.
Preferably; Be perhaps to subtract in one for adding one at the station information that changes that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output; Again near the frequency that does not have frequency locking the current program is carried out frequency locking from current tuner tuner farthest, the frequency locking information of other frequencies is constant.
Preferably; Remote control signal receiving module receive change station information for the digital input table directly selected the time; The program decoding that the master control chip is corresponding according to the frequency signal controlling STB demultiplexing module output that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output, and other tuner carries out frequency locking to the frequency when other respectively.
The invention also discloses a kind of device of DTV STB fast channel switching; Comprise at least one tuner, STB demultiplexing module, remote control signal receiving module, master control chip; Said tuner is used for the frequency signal is carried out frequency locking and demodulation; Said STB demultiplexing module is used to receive the MPTS of tuner output, and said remote control signal receiving module is used to receive the signal of remote controller and is transferred to the master control chip, and the master control chip is used for the output of controller top box demultiplexing module; The MPTS that said tuner is corresponding all outputs to the STB demultiplexing module; Remote control signal receiving module receives current frequency, and one of them tuner carries out frequency locking to current frequency, and this tuner is set to current tuner; Master control chip controls STB demultiplexing module is exported the program decoding of current program, and other tuners carry out frequency locking near the frequency the current program respectively.
Preferably, the quantity of above-mentioned tuner is 3.
Beneficial effect of the present invention: tuner is that current tuner is when carrying out demodulation to current program frequency point therein; Other tuner also carries out demodulation near the frequency the current program frequency point simultaneously; Parameter and frequency locking are set, and when the user changed platform, the TS of next frequency stream had had output; Directly carrying out program decoding back just can watch; Saved the time that parameter, frequency locking are set, changing to the another one platform from a platform so only needs 0.5 second buffer time, has strengthened user experience.
Description of drawings
Fig. 1 is the method flow diagram of DTV STB fast channel switching of the present invention.
Fig. 2 is the structure drawing of device of DTV STB fast channel switching of the present invention.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the present invention is further described.
The invention discloses a kind of method of DTV STB fast channel switching; It specifically may further comprise the steps: said STB comprises at least one tuner; The MPTS that said tuner is corresponding all outputs to the STB demultiplexing module; Remote control signal receiving module receives current frequency, and one of them tuner carries out frequency locking to current frequency, and this tuner is set to current tuner; Master control chip controls STB demultiplexing module is exported the program decoding of current program, and other tuners carry out frequency locking near the frequency the current program respectively.Tuner is current tuner when current program frequency point is carried out demodulation therein, and other tuner also carries out demodulation near the frequency the current program frequency point simultaneously, and parameter and frequency locking are set; When the user changes platform; The TS stream of next frequency has had output, directly carries out program decoding back and just can watch, and has saved the time that parameter, frequency locking are set; Changing to the another one platform from a platform so only needs 0.5 second buffer time, has strengthened user experience.
The method flow diagram of DTV STB fast channel switching of the present invention as shown in Figure 1.STB with integrated three tuners is that example is described, and first via tuner is a road, and the second road tuner is the b road, and the Third Road tuner is the c road.
The active user selects the n programs to watch, and TS that demultiplexing uses stream (MPTS) is a road, and then b road, c road tuner parameter that n+1, n-1 programs be set is respectively carried out frequency locking; This moment no matter be the user select program+; Or program-, its parameter is provided with already, and TS stream has had output; Then only need directly to select b road or c road to carry out the program decoding and get final product, so just saved the time that parameter, frequency locking are set.Behind the selected program viewing of user, the two-way tuner can be provided with the program parameter up and down of current program through program again in addition, and plays preparation.
Preferably, the quantity of said tuner is 3, and a tuner is separated timing to current frequency therein, and two other tuner carries out demodulation to the program of former and later two frequencies of current frequency respectively.3 tuners just can be realized goal of the invention of the present invention, can also save production cost.
Preferably; Remote control signal receiving module receive change station information after; The program decoding that the master control chip is corresponding according to the frequency signal controlling STB demultiplexing module output that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output, and other tuner carries out frequency locking near the frequency the current program respectively.When selecting as the user n programs converted into the n+1 programs and watch, the TS that demultiplexing uses flows and is the b road, and then a road, c road tuner parameter that n, n+2 programs be set is respectively carried out frequency locking.
Preferably; The station information that changes that receives at remote control signal receiving module perhaps subtracts in one for adding one; The tuner of correspondence is set to the tuner of current output; Again near the frequency that does not have frequency locking the current program is carried out frequency locking from current tuner tuner farthest, the frequency locking information of other frequencies is constant.Like this, when changing a platform, have only the frequency locking informational needs of a tuner to change at every turn, increased the speed of system's operation.When selecting as the user n programs converted into the n+1 programs and watch; The TS stream that demultiplexing uses is the b road; The parameter frequency locking of the corresponding n programs of original a road tuner is constant, is that the parameter of n+2 programs is carried out frequency locking with the parameter modification of the corresponding n-1 programs of original c road tuner, by that analogy; Platform of every replacing only needs a tuner replacing parameter to carry out frequency locking, has increased the speed of system's operation.
Preferably; Remote control signal receiving module receive change station information for the digital input table directly selected the time; The program decoding that the master control chip is corresponding according to the frequency signal controlling STB demultiplexing module output that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output, and other tuner carries out frequency locking to the frequency when other respectively.Import x like the user, then when the user imported x, the parameter of x-5, x+5 channel just had been arranged to the two-way tuner of free time on the backstage, the so at utmost input of match user, and this moment, the tuner way was many more, and the success rate of coupling is just big more.
The structure drawing of device of DTV STB fast channel switching of the present invention as shown in Figure 2.The invention also discloses a kind of device of DTV STB fast channel switching; Comprise at least one tuner, STB demultiplexing module, remote control signal receiving module, master control chip; Said tuner is used for the frequency signal is carried out frequency locking and demodulation; Said STB demultiplexing module is used to receive the MPTS of tuner output, and said remote control signal receiving module is used to receive the signal of remote controller and is transferred to the master control chip, and the master control chip is used for the output of controller top box demultiplexing module; The MPTS that said tuner is corresponding all outputs to the STB demultiplexing module; Remote control signal receiving module receives current frequency, and one of them tuner carries out frequency locking to current frequency, and this tuner is set to current tuner; Master control chip controls STB demultiplexing module is exported the program decoding of current program, and other tuners carry out frequency locking near the frequency the current program respectively.Tuner is that current tuner is when carrying out demodulation to current program frequency point therein; Other tuner also carries out demodulation near the frequency the current program frequency point simultaneously; Parameter and frequency locking are set, and when the user changed platform, the TS of next frequency stream had had output; Directly carrying out program decoding back just can watch; Saved the time that parameter, frequency locking are set, the device of above-mentioned DTV STB fast channel switching is changed to the another one platform from a platform only needs 0.5 second buffer time, has strengthened user experience.
Preferably, the quantity of said tuner is 3.A tuner is separated timing to current frequency therein, and two other tuner carries out demodulation to the program of former and later two frequencies of current frequency respectively.3 tuners just can be realized goal of the invention of the present invention, can also save production cost.
More than above-mentionedly be merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the method for a DTV STB fast channel switching, it specifically may further comprise the steps: said STB comprises at least one tuner, the MPTS that said tuner is corresponding all outputs to the STB demultiplexing module; Remote control signal receiving module receives current frequency; One of them tuner carries out frequency locking to current frequency; This tuner is set to current tuner; Master control chip controls STB demultiplexing module is exported the program decoding of current program, and other tuners carry out frequency locking near the frequency the current program respectively.
2. the method for DTV STB fast channel switching as claimed in claim 1; The quantity that it is characterized in that said tuner is 3; A tuner is separated timing to current frequency therein, and two other tuner carries out demodulation to the program of former and later two frequencies of current frequency respectively.
3. the method for DTV STB fast channel switching as claimed in claim 1; It is characterized in that remote control signal receiving module receive change station information after; The program decoding that the master control chip is corresponding according to the frequency signal controlling STB demultiplexing module output that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output, and other tuner carries out frequency locking near the frequency the current program respectively.
4. the method for DTV STB fast channel switching as claimed in claim 1; It is characterized in that perhaps subtracting in one for adding one at the station information that changes that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output; Again near the frequency that does not have frequency locking the current program is carried out frequency locking from current tuner tuner farthest, the frequency locking information of other frequencies is constant.
5. the method for DTV STB fast channel switching as claimed in claim 1; It is characterized in that remote control signal receiving module receive change station information for the digital input table directly selected the time; The program decoding that the master control chip is corresponding according to the frequency signal controlling STB demultiplexing module output that remote control signal receiving module receives; The tuner of correspondence is set to the tuner of current output, and other tuner carries out frequency locking to the frequency when other respectively.
6. the device of a DTV STB fast channel switching; It is characterized in that comprising at least one tuner, STB demultiplexing module, remote control signal receiving module, master control chip; Said tuner is used for the frequency signal is carried out frequency locking and demodulation; Said STB demultiplexing module is used to receive the MPTS of tuner output, and said remote control signal receiving module is used to receive the signal of remote controller and is transferred to the master control chip, and the master control chip is used for the output of controller top box demultiplexing module; The MPTS that said tuner is corresponding all outputs to the STB demultiplexing module; Remote control signal receiving module receives current frequency, and one of them tuner carries out frequency locking to current frequency, and this tuner is set to current tuner; Master control chip controls STB demultiplexing module is exported the program decoding of current program, and other tuners carry out frequency locking near the frequency the current program respectively.
7. the device of DTV STB fast channel switching as claimed in claim 6, the quantity that it is characterized in that said tuner is 3.
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| CN201210142775.3A CN102710980B (en) | 2012-05-10 | 2012-05-10 | Method and device for rapidly changing channel of digital television set top box |
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| CN201210142775.3A CN102710980B (en) | 2012-05-10 | 2012-05-10 | Method and device for rapidly changing channel of digital television set top box |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024455A (en) * | 2012-12-11 | 2013-04-03 | 四川长虹电器股份有限公司 | Method and system for accelerating electronic program guide (EPG) data searching of set-top box |
| CN103139633A (en) * | 2013-02-05 | 2013-06-05 | 深圳创维数字技术股份有限公司 | Digital television receiving terminal and method for switching channel thereof |
| CN104469472A (en) * | 2013-09-25 | 2015-03-25 | 珠海扬智电子科技有限公司 | Television channel switching device and method |
| CN104618795A (en) * | 2015-02-04 | 2015-05-13 | 深圳市九洲电器有限公司 | Method and system for changing television program playback channel |
| CN104768058A (en) * | 2014-01-03 | 2015-07-08 | 北京赛科世纪数码科技有限公司 | Rapid channel switch technology for set top box |
| CN105451072A (en) * | 2015-12-03 | 2016-03-30 | 深圳市茁壮网络股份有限公司 | Method for rapidly changing channels of digital television |
| CN106231396A (en) * | 2016-07-28 | 2016-12-14 | 深圳创维数字技术有限公司 | A kind of program resource shares the Set Top Box of process, system and method |
| CN106303685A (en) * | 2016-08-31 | 2017-01-04 | 上海澳润信息科技有限公司 | A kind of double pre-locking methods of Tuner based on intelligent gateway |
| CN106357999A (en) * | 2016-09-23 | 2017-01-25 | 青岛海信电器股份有限公司 | Tuner control method and device, television and set-top box |
| WO2017198185A1 (en) * | 2016-05-19 | 2017-11-23 | 深圳创维数字技术有限公司 | Method and apparatus for receiving electronic program guide information |
| CN108712668A (en) * | 2018-05-31 | 2018-10-26 | 深圳市茁壮网络股份有限公司 | A kind of method and system for accelerating live streaming to cut platform |
| CN108881989A (en) * | 2018-06-12 | 2018-11-23 | 深圳国微视安科技有限公司 | A kind of quick plug-flow control method of live streaming TS program and system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024455A (en) * | 2012-12-11 | 2013-04-03 | 四川长虹电器股份有限公司 | Method and system for accelerating electronic program guide (EPG) data searching of set-top box |
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| CN104618795A (en) * | 2015-02-04 | 2015-05-13 | 深圳市九洲电器有限公司 | Method and system for changing television program playback channel |
| CN104618795B (en) * | 2015-02-04 | 2018-06-15 | 深圳市九洲电器有限公司 | TV programme play channel switching method and system |
| CN105451072A (en) * | 2015-12-03 | 2016-03-30 | 深圳市茁壮网络股份有限公司 | Method for rapidly changing channels of digital television |
| WO2017198185A1 (en) * | 2016-05-19 | 2017-11-23 | 深圳创维数字技术有限公司 | Method and apparatus for receiving electronic program guide information |
| CN106231396A (en) * | 2016-07-28 | 2016-12-14 | 深圳创维数字技术有限公司 | A kind of program resource shares the Set Top Box of process, system and method |
| CN106231396B (en) * | 2016-07-28 | 2019-09-10 | 深圳创维数字技术有限公司 | A kind of set-top box of the shared processing of program resource, system and method |
| CN106303685A (en) * | 2016-08-31 | 2017-01-04 | 上海澳润信息科技有限公司 | A kind of double pre-locking methods of Tuner based on intelligent gateway |
| CN106357999A (en) * | 2016-09-23 | 2017-01-25 | 青岛海信电器股份有限公司 | Tuner control method and device, television and set-top box |
| CN108712668A (en) * | 2018-05-31 | 2018-10-26 | 深圳市茁壮网络股份有限公司 | A kind of method and system for accelerating live streaming to cut platform |
| CN108881989A (en) * | 2018-06-12 | 2018-11-23 | 深圳国微视安科技有限公司 | A kind of quick plug-flow control method of live streaming TS program and system |
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