CN102202197A - A kind of channel program searching method and television set - Google Patents
A kind of channel program searching method and television set Download PDFInfo
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- CN102202197A CN102202197A CN 201110136384 CN201110136384A CN102202197A CN 102202197 A CN102202197 A CN 102202197A CN 201110136384 CN201110136384 CN 201110136384 CN 201110136384 A CN201110136384 A CN 201110136384A CN 102202197 A CN102202197 A CN 102202197A
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Abstract
The embodiment of the invention discloses a kind of TV set to search programmes method, comprising: search for a channel program; S-SYSTEM and sound standard to described channel program are discerned; Preserve the programme information of described channel program, described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.The embodiment of the invention also discloses a kind of television set.The present invention according to actual search to television system carry out the preservation of channel program, avoid the regional differentiation of television system, make things convenient for the user under any circumstance this channel program normally to be watched.
Description
Technical field
The present invention relates to the automatic TV channel search technical field, relate in particular to a kind of channel program searching method and television set.
Background technology
Each television set all possesses automatic channel search (auto channel search program) function, and the automatic channel search function has directly influenced the favorable rating of user to this kind of television set.At global TV market, there is the system of several species diversity in television system, wherein, the S-SYSTEM of channel program mainly is divided into: PAL(Phase Alternating Line, the quadrature amplitude balance phase-aoternation line system) standard, SECAM(Sequential Coleur Avec Memoire, road wheel changes frequency modulation system) standard and NTSC(National Television Systems Committee, quadrature amplitude balance system) standard; The sound standard of channel program mainly is divided into: D/K standard, B/G standard, I standard, L standard, L ' standard, M standard and N standard.The television system that zones of different adopts may be different, such as: the S-SYSTEM of the channel program on ground such as China, India adopts pal mode, the S-SYSTEM of the channel program on ground such as Japan, the U.S., Taiwan adopts the TSC-system formula, and the S-SYSTEM of the channel program on ground such as France, Russia adopts the Sequential Color and Memory system formula.
Existing automatic TV channel search scheme is mainly: at first preestablish a kind of S-SYSTEM and sound standard at television set, television set searches channel program automatically, and this channel program is preserved according to default S-SYSTEM and sound standard.The inventor finds that mainly there is following defective in existing automatic TV channel search scheme:
1, since the S-SYSTEM of the channel program that searches of television set itself and sound standard may there are differences with S-SYSTEM and the sound standard preset, pressure saves as default television system with the channel program that searches, and may influence the result of broadcast of this channel program.
2, the television system owing to zones of different may there are differences, when television set from a zone-transfer to another when zone, such as: the TV on the ocean-going ship, be transferred to another country from a country, adopt existing TV set to search programmes scheme, last range searching to channel program possibly can't in current region, carry out normal play, need change the parameter of channel program according to the television system of current region, be unfavorable for user's mobile user demand.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of TV set to search programmes method and television set are provided, according to actual search to television system carry out the preservation of channel program, avoid the regional differentiation of television system, make things convenient for the user under any circumstance this channel program normally to be watched.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of TV set to search programmes method, comprising:
Search for a channel program;
S-SYSTEM and sound standard to described channel program are discerned;
Preserve the programme information of described channel program, described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.
Wherein, channel program of described search comprises:
Start the automatic channel search of television set, set a frequency;
Judge whether described frequency exceeds the frequency range that described television set is supported, if judged result is for being to withdraw from the automatic channel search of television set;
If judged result reads the state of the Video Decoder of described television set for not, whether the programme signal that detects described frequency comprises synchronizing signal, if testing result resets new frequency and repeats above-mentioned steps for not;
If testing result for being, reads the AFC(Auto Frequency Control of described television set, automatic frequency control) value;
According to described AFC value, determine frequency step, and determine to search the channel program of described frequency correspondence.
Wherein, described S-SYSTEM and sound standard to described channel program discerned, and comprising:
Read the Video Decoder of described television set and the buffer status of audio decoder;
According to the described buffer status that reads the S-SYSTEM and the sound standard of described channel program are discerned automatically.
Wherein, after the programme information of the described channel program of described preservation, also comprise:
According to described definite frequency step, the frequency of current setting is carried out the frequency increase and decrease;
Again search for new channel program and repeat above-mentioned steps, the channel program in the frequency range of television set support is searched finish till.
Wherein, described to described channel program S-SYSTEM and after the sound standard discerns, preserve before the programme information of described channel program, also comprise:
Whether the noise of judging described channel program exceeds the noise scope that presets;
If judged result for being, then abandons described channel program, search for new channel program again;
If judged result is then carried out the step of the programme information of preserving described channel program for not.
Correspondingly, the embodiment of the invention also provides a kind of television set, comprising:
Search module is used to search for a channel program;
Identification module, the S-SYSTEM and the sound standard that are used for channel program that described search module is searched are discerned;
Preserve module, be used to preserve the programme information of described channel program, described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.
Wherein, described search module comprises:
Setup unit is used to start the automatic channel search of television set, sets a frequency;
The frequency judging unit is used to judge whether the described frequency that described setup unit is set exceeds the frequency range that described television set is supported, when judged result when being, withdraw from the automatic channel search of television set;
Detecting unit, be used for reading for not the time state of the Video Decoder of described television set as described frequency judgment unit judges result, whether the programme signal that detects described frequency comprises synchronizing signal, when testing result for not the time, notify described setup unit to set new frequency;
The AFC reading unit, be used for when described detecting unit testing result when being, read the AFC value of described television set;
The step-length determining unit is used for the AFC value that reads according to described AFC reading unit, determines frequency step;
The search determining unit is used for the AFC value that reads according to described AFC reading unit, determines to search the channel program of the frequency correspondence of described setup unit setting.
Wherein, described television set also comprises Video Decoder and audio decoder;
Described identification module comprises:
The state reading unit is used to read the Video Decoder of described television set and the buffer status of audio decoder;
Recognition unit is used for the buffer status that reads according to described state reading unit, and the S-SYSTEM and the sound standard of described channel program are discerned automatically.
Wherein, described setup unit also is used for after described preservation module is preserved the programme information of described channel program, and the frequency step of determining according to described step-length determining unit carries out the frequency increase and decrease to the frequency of current setting, searches for new channel program again.
Wherein, described television set also comprises:
Judge module, whether the noise of the channel program that is used to judge that described search module searches exceeds the noise scope that presets;
Described search module also be used for when described judge module judged result when being, abandon described channel program, search for new channel program again;
Described preservation module be used for when described judge module judged result for not the time, preserve the programme information of described channel program.
Implement the embodiment of the invention, have following beneficial effect:
The embodiment of the invention is after searching channel program, this channel program is carried out the identification of S-SYSTEM and sound standard, and preserve this channel program according to actual S-SYSTEM that identifies and sound standard, the platform mode of searching of this preservation of carrying out channel program according to the S-SYSTEM and the sound standard of channel program itself, avoid the regional differentiation of television system, made things convenient for the user under any circumstance this channel program normally to be watched.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of first embodiment of television set of the present invention;
Fig. 2 is the structural representation of the embodiment of search module of the present invention;
Fig. 3 is the structural representation of the embodiment of identification module of the present invention;
Fig. 4 is the structural representation of second embodiment of television set of the present invention;
Fig. 5 is the flow chart of first embodiment of TV set to search programmes method of the present invention;
Fig. 6 is the flow chart of second embodiment of TV set to search programmes method of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1, be the structural representation of first embodiment of television set of the present invention; Described television set comprises:
In the specific implementation, described search module 10 can be the tuner of television set.Please in the lump referring to Fig. 2, be the structural representation of the embodiment of search module of the present invention; Described search module 10 comprises:
Setup unit 101 is used to start the automatic channel search of television set, sets a frequency.
Every television set all possesses the automatic channel search function, described setup unit 101 can carry out the automatic channel search function that set starts television set by the automatic channel search flag bit to television set, after television set began automatic channel search, described setup unit 101 was promptly set a frequency.
Frequency judging unit 102 is used to judge whether the described frequency that described setup unit 101 is set exceeds the frequency range that described television set is supported, when judged result when being, withdraw from the automatic channel search of television set.
Every television set all possesses a tuner, the frequency range of this tuner support is the frequency range that television set is supported, described frequency judging unit 102 judges whether the described frequency that described setup unit 101 is set exceeds the frequency range that television set is supported, if judged result is for being then to withdraw from the automatic channel search of television set.
Detecting unit 103, be used for when described frequency judging unit 102 judged results for not the time, read the state of the Video Decoder of described television set, whether the programme signal that detects described frequency comprises synchronizing signal, when testing result for not the time, notify described setup unit 101 to set new frequency.
AFC reading unit 104, be used for when described detecting unit 103 testing results when being, read the AFC value of described television set.
Step-length determining unit 105 is used for the AFC value that reads according to described AFC reading unit, determines frequency step; The frequency step that described step-length determining unit 105 is determined is used for current frequency is carried out the frequency increase and decrease, to carry out the search of succeeding channel program.
Search determining unit 106 is used for the AFC value that reads according to described AFC reading unit, determines to search the channel program of the frequency correspondence of described setup unit 101 settings; The frequency that described setup unit 101 is set is the frequency information of the channel program that described search determining unit 106 determines.
See also Fig. 1 again, described television set also comprises:
Specifically please in the lump referring to Fig. 3, be the structural representation of the embodiment of identification module of the present invention; Described identification module 20 comprises:
Stored the decoded information of the channel program that searches in the described register, described recognition unit 202 is according to buffer status, S-SYSTEM and sound standard to described channel program are discerned automatically, such as: if described recognition unit 202 identifies the S-SYSTEM of channel program is pal mode, the sound standard of channel program is: the M standard, the television system of hence one can see that this channel program is the PAL-M standard.Need to prove that the S-SYSTEM of channel program mainly is divided into: pal mode, Sequential Color and Memory system formula and TSC-system formula; The sound standard of channel program mainly is divided into: D/K standard, B/G standard, I standard, L standard, L ' standard, M standard and N standard.But described recognition unit 202 is not given unnecessary details at this identifying similar analysis of the television system of the channel program under other situations.
See also Fig. 1 again, described television set also comprises:
Behind the S-SYSTEM and sound standard of the described channel program that described identification module 20 identifies, described preservation module 30 is preserved the programme information of this channel program, wherein, programme information comprises: the S-SYSTEM and the sound standard of the frequency information of described channel program (being the frequency of current setting), described channel program.Described preservation module 30 is preserved the television system of channel program itself, does not force channel program is saved as default standard, can make the user when watching this channel program, can directly normally watch, and has guaranteed the result of broadcast of channel program; In addition, when the user when zones of different is watched this channel program, but same normal play has been avoided regional differentiation.
Need to prove, described setup unit 101 also is used for after described preservation module 30 is preserved the programme information of described channel program, the frequency step of determining according to described step-length determining unit 105, to current search to the frequency of channel program carry out the frequency increase and decrease, search for new channel program again.
The embodiment of the invention is after searching channel program, this channel program is carried out the identification of S-SYSTEM and sound standard, and preserve this channel program according to actual S-SYSTEM that identifies and sound standard, the platform mode of searching of this preservation of carrying out channel program according to the S-SYSTEM and the sound standard of channel program itself, avoid the regional differentiation of television system, made things convenient for the user under any circumstance this channel program normally to be watched.
See also Fig. 4, be the structural representation of second embodiment of television set of the present invention; With embodiment illustrated in fig. 1 identical, described television set comprises: search module 10, identification module 20 and preservation module 30.In the present embodiment, described television set also comprises:
Each television set includes audio/video decoder, and the program stream (video and audio frequency) of the channel program that it searches television set or the program stream (video and audio frequency) that receives from server end are decoded, and are stored in respectively in its built-in register.
If described judge module 60 judged results for being, show the channel that this channel program that searches is a vacation (invalid channel or false platform), 10 of described search modules abandon described channel program, search for new channel program again.If described judge module 60 judged results show that for not this channel program that searches is effective channel, 30 programme informations of preserving described channel program of described preservation module.Need to prove that the described noise scope that presets can reasonably be set according to actual conditions, does not give unnecessary details at this.
The embodiment of the invention guarantees that the channel program that searches is effective channel program, makes things convenient for the user that this channel program is normally watched.
In order to be illustrated more clearly in the present invention, will describe in detail to the performed TV set to search programmes method of above-mentioned television set below.
See also Fig. 5, be the flow chart of first embodiment of TV set to search programmes method of the present invention; Described method comprises:
S101 searches for a channel program.Described S101 adopts the tuner of television set to come the channel searching program.
S102 discerns the S-SYSTEM and the sound standard of described channel program.
The S-SYSTEM of channel program mainly is divided into: pal mode, Sequential Color and Memory system formula and TSC-system formula; The sound standard of channel program mainly is divided into: D/K standard, B/G standard, I standard, L standard, L ' standard, M standard and N standard.Described S102 discerns the S-SYSTEM and the sound standard of described channel program, such as: if described S102 identifies the S-SYSTEM of channel program is pal mode, the sound standard of channel program is: the M standard, the television system of hence one can see that this channel program is the PAL-M standard.
S103 preserves the programme information of described channel program, and described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.
Behind the S-SYSTEM and sound standard of the described channel program that described S102 identifies, described S103 preserves the programme information of this channel program, wherein, programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.Described S103 preserves the television system of channel program itself, does not force channel program is saved as default standard, can make the user when watching this channel program, can directly normally watch, and has guaranteed the result of broadcast of channel program; In addition, when the user when zones of different is watched this channel program, but same normal play has been avoided regional differentiation.
The embodiment of the invention is after searching channel program, this channel program is carried out the identification of S-SYSTEM and sound standard, and preserve this channel program according to actual S-SYSTEM that identifies and sound standard, the platform mode of searching of this preservation of carrying out channel program according to the S-SYSTEM and the sound standard of channel program itself, avoid the regional differentiation of television system, made things convenient for the user under any circumstance this channel program normally to be watched.
See also Fig. 6, be the flow chart of second embodiment of TV set to search programmes method of the present invention; Described method comprises:
S201, the automatic channel search of startup television set is set a frequency.
Every television set all possesses the automatic channel search function, and described S201 can be by the automatic channel search function to automatic channel search flag bit set startup television set of television set, and after television set began automatic channel search, described S201 promptly set a frequency.
S202 judges whether described frequency exceeds the frequency range that described television set is supported, if judged result changes S203 over to for not; Otherwise, withdraw from the automatic channel search of television set, change end over to.
Every television set all possesses a tuner, the frequency range of this tuner support is the frequency range that television set is supported, described S202 judges whether the described frequency that described S201 sets exceeds the frequency range that television set is supported, if judged result is for being then to withdraw from the automatic channel search of television set; If judged result then changes S203 over to for not.
S203 reads the state of the Video Decoder of described television set, and whether the programme signal that detects described frequency comprises synchronizing signal, if testing result is for being to change S204 over to; Otherwise, change S201 over to.
S204 reads the AFC value in the described television set.
S205 according to described AFC value, determines frequency step, and determines to search the channel program of described frequency correspondence.The frequency step that described S205 determines is used for current frequency is carried out the frequency increase and decrease, to carry out the search of succeeding channel program.
In the present embodiment, described S201-S205 is the concrete refinement step of the S101 of a last embodiment.
S206 reads the Video Decoder of described television set and the buffer status of audio decoder.
S207 discerns the S-SYSTEM and the sound standard of described channel program automatically according to the described buffer status that reads.
Stored the decoded information of the channel program that searches in the described register, the buffer status that described S207 reads according to described S206, S-SYSTEM and sound standard to described channel program are discerned automatically, such as: if described S207 identifies the S-SYSTEM of channel program is pal mode, the sound standard of channel program is: the M standard, the television system of hence one can see that this channel program is the PAL-M standard.Need to prove that the S-SYSTEM of channel program mainly is divided into: pal mode, Sequential Color and Memory system formula and TSC-system formula; The sound standard of channel program mainly is divided into: D/K standard, B/G standard, I standard, L standard, L ' standard, M standard and N standard.But described S207 does not give unnecessary details at this identifying similar analysis of the television system of the channel program under other situations.
In the present embodiment, described S206-S207 is the concrete refinement step of the S102 among the last embodiment.
S208 judges whether the noise of described channel program exceeds the noise scope that presets, if judged result changes S209 over to for not; Otherwise, change S201 over to.
If described S208 judged result is for being, show the channel that this channel program that searches is a vacation (invalid channel or false platform), describedly then abandon described channel program, change S201 over to and reset new frequency, search for new channel program.If described S208 judged result shows that for not this channel program that searches is effective channel, change S209 over to.Need to prove that the described noise scope that presets can reasonably be set according to actual conditions, does not give unnecessary details at this.
S209 preserves the programme information of described channel program, and described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.
In the present embodiment, described S209 is identical with the S103 step of a last embodiment, does not give unnecessary details at this.
S210, the frequency step of determining according to described AFC value, to current search to the frequency of channel program carry out the frequency increase and decrease, afterwards, change S201 over to.In the specific implementation, described S210 carries out the frequency increase and decrease according to the frequency step that described S206 determines to current frequency, to change the search that S201 carries out the succeeding channel program over to.
The embodiment of the invention is after searching channel program, this channel program is carried out the identification of S-SYSTEM and sound standard, preserve this channel program according to actual S-SYSTEM that identifies and sound standard, and guarantee that the channel program that searches is effective channel program, thisly search the regional differentiation that the platform mode has been avoided television system, make things convenient for the user under any circumstance this channel program normally to be watched.
Above disclosed only is preferred embodiment of the present invention, certainly can not limit the present invention's interest field with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description, and, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Claims (10)
1. a TV set to search programmes method is characterized in that, comprising:
Search for a channel program;
S-SYSTEM and sound standard to described channel program are discerned;
Preserve the programme information of described channel program, described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.
2. the method for claim 1 is characterized in that, channel program of described search comprises:
Start the automatic channel search of television set, set a frequency;
Judge whether described frequency exceeds the frequency range that described television set is supported, if judged result is for being to withdraw from the automatic channel search of television set;
If judged result reads the state of the Video Decoder of described television set for not, whether the programme signal that detects described frequency comprises synchronizing signal, if testing result resets new frequency and repeats above-mentioned steps for not;
If testing result, reads the automatic frequency of described television set for being and controls the AFC value;
According to described AFC value, determine frequency step, and determine to search the channel program of described frequency correspondence.
3. the method for claim 1 is characterized in that, described S-SYSTEM and sound standard to described channel program discerned, and comprising:
Read the Video Decoder of described television set and the buffer status of audio decoder;
According to the described buffer status that reads the S-SYSTEM and the sound standard of described channel program are discerned automatically.
4. method as claimed in claim 2 is characterized in that, after the programme information of the described channel program of described preservation, also comprises:
According to described definite frequency step, the frequency of current setting is carried out the frequency increase and decrease;
Again search for new channel program and repeat above-mentioned steps, the channel program in the frequency range of television set support is searched finish till.
5. as each described method of claim 1-4, it is characterized in that, described to described channel program S-SYSTEM and after the sound standard discerns, preserve before the programme information of described channel program, also comprise:
Whether the noise of judging described channel program exceeds the noise scope that presets;
If judged result for being, then abandons described channel program, search for new channel program again;
If judged result is then carried out the step of the programme information of preserving described channel program for not.
6. a television set is characterized in that, comprising:
Search module is used to search for a channel program;
Identification module, the S-SYSTEM and the sound standard that are used for channel program that described search module is searched are discerned;
Preserve module, be used to preserve the programme information of described channel program, described programme information comprises: the frequency information of described channel program, the S-SYSTEM of described channel program and sound standard.
7. television set as claimed in claim 6 is characterized in that, described search module comprises:
Setup unit is used to start the automatic channel search of television set, sets a frequency;
The frequency judging unit is used to judge whether the described frequency that described setup unit is set exceeds the frequency range that described television set is supported, when judged result when being, withdraw from the automatic channel search of television set;
Detecting unit, be used for when described frequency judgment unit judges result for not the time, read the state of the Video Decoder of described television set, whether the programme signal that detects described frequency comprises synchronizing signal, when testing result for not the time, notify described setup unit to set new frequency;
The AFC reading unit, be used for when described detecting unit testing result when being, read the AFC value of described television set;
The step-length determining unit is used for the AFC value that reads according to described AFC reading unit, determines frequency step;
The search determining unit is used for the AFC value that reads according to described AFC reading unit, determines to search the channel program of the frequency correspondence of described setup unit setting.
8. television set as claimed in claim 6 is characterized in that described television set also comprises Video Decoder and audio decoder;
Described identification module comprises:
The state reading unit is used to read the Video Decoder of described television set and the buffer status of audio decoder;
Recognition unit is used for the buffer status that reads according to described state reading unit, and the S-SYSTEM and the sound standard of described channel program are discerned automatically.
9. television set as claimed in claim 7, it is characterized in that, described setup unit also is used for after described preservation module is preserved the programme information of described channel program, the frequency step definite according to described step-length determining unit, frequency to current setting carries out the frequency increase and decrease, searches for new channel program again.
10. as each described television set of claim 6-9, it is characterized in that, also comprise:
Judge module, whether the noise of the channel program that is used to judge that described search module searches exceeds the noise scope that presets;
Described search module also be used for when described judge module judged result when being, abandon described channel program, search for new channel program again;
Described preservation module be used for when described judge module judged result for not the time, preserve the programme information of described channel program.
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| CN108600857B (en) * | 2018-04-25 | 2020-09-25 | 海信视像科技股份有限公司 | Method for indicating state of TV signal source and smart television |
| 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 |
| CN111147785A (en) * | 2019-11-12 | 2020-05-12 | 深圳Tcl数字技术有限公司 | Signal system loading method and device, video playing terminal and readable storage medium |
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Address after: Xue Cheng Ke Zhu Road Guangzhou City, Guangdong province 510663 science No. 192 Applicant after: Guangzhou CVT Electronics Technology Co., Ltd. Address before: Xue Cheng Ke Zhu Road Guangzhou City, Guangdong province 510663 science No. 192 Applicant before: Guangzhou Shiyuan Electronics Technology Co., Ltd. |
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Application publication date: 20110928 |