CN102123261A - Television as well as channel search method and system thereof - Google Patents
Television as well as channel search method and system thereof Download PDFInfo
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- CN102123261A CN102123261A CN2010100427441A CN201010042744A CN102123261A CN 102123261 A CN102123261 A CN 102123261A CN 2010100427441 A CN2010100427441 A CN 2010100427441A CN 201010042744 A CN201010042744 A CN 201010042744A CN 102123261 A CN102123261 A CN 102123261A
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Abstract
The invention is suitable for the technical field of televisions, and provides a television as well as a channel search method and system thereof, wherein the method comprises the following steps: receiving a channel search signal, and then beginning to search television signals according to the channel search signal; identifying the image format of a television signal searched for the first time, and rewriting the value of a register related to the image, so that the value of the register related to the image is corresponding to the identified image format; and when other television signals are searched, reading the values of the register related to the images, and determining the image formats corresponding to the values of the register related to the images as the image formats of the other television signals, thereby avoiding the identification on the image formats of the corresponding television signals after the television signals are searched each time, saving the total time for channel search, and reducing the complexity of channel search.
Description
Technical field
The invention belongs to TV technology, relate in particular to a kind of television set and channel search method thereof, system.
Background technology
At present, the user need search for TV programme when using the television set received television signal, promptly needs to search the platform operation.Because the picture-and-sound standard of the country variant and the TV signal in area may be different, therefore the decoding chip in the present television set is all supported multiple picture-and-sound standard, for example, the line-by-line inversion of in the menu of television set, listing (Phase Alteration Line, PAL) standard, transmit colored in order and storage (Sequentiel Couleur A Memoire, SECAM) standard, NTSC (National Television Standards Committee, NTSC) video standard such as standard, and D/K, B/G, sound accompaniment standards such as I.Have only when television set can correctly identify the standard of the TV signal that current search arrives, television set could normal image and the sound of playing this TV signal.
Traditional television set is when searching platform, need the user before beginning to search the platform operation, by the menu in the television set picture-and-sound standard is chosen local correct standard, this manual selection mode has increased the operation easier that does not almost have the domestic consumer of TV relevant knowledge.For this reason, the another kind of TV set to search programmes mode that prior art provides is that the platform software of searching by television internal carries out the identification of automatic standard to the TV signal that searches, this kind mode after searching TV signal at every turn, all need the standard of the corresponding TV signal that searches is discerned, though this application of searching platform software makes that the user does not need to set in advance, yet owing to search the identification that all needs to carry out a standard after the TV signal at every turn, make and wholely search the platform time and become longer, improved the complexity of searching platform.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of channel search method of television set, be intended to solve prior art provides TV set to search programmes mode after searching TV signal at every turn, all need the standard of the corresponding TV signal that searches is discerned, make and wholely search the platform time and become longer, improved the complexity issue of searching platform.
The embodiment of the invention is achieved in that a kind of channel search method of television set, and described television set comprises the register relevant with image, said method comprising the steps of:
The platform signal is searched in reception, and begins the searching television signal according to the described platform signal of searching;
The video standard of the TV signal that searches first of identification, and the value of rewriting the described register relevant with image make that the value of the described register relevant with image and the described video standard that recognizes are corresponding;
When searching other TV signal, read the value of the described register relevant with image, will be with described the corresponding video standard of the value of relevant register be defined as the video standard of described other TV signal with image.
Another purpose of the embodiment of the invention is to provide a kind of channel searching system of television set, and described system comprises:
The register relevant with image;
Signal receiving unit is used for receiving and searches the platform signal;
The TV signal search unit is used for beginning the searching television signal according to the platform signal of searching that described signal receiving unit receives;
The standard recognition unit is used to discern the video standard of the TV signal that described TV signal search unit searches first;
Rewrite the unit, be used to rewrite the value of the described register relevant, make that the value of the described register relevant with image and video standard that described standard recognition unit recognizes are corresponding with image;
Reading unit, be used for when described TV signal search unit searches other TV signal, read the value of the described register relevant, the corresponding video standard of value of the described register relevant with image is defined as the video standard of described other TV signal with image.
Another purpose of the embodiment of the invention is to provide a kind of television set, comprises the channel searching system of a television set, and the channel searching system of described television set adopts the channel searching system of aforesaid television set.
Since the channel search method that provides of the embodiment of the invention identify search TV signal first after, rewrite the value of the register relevant with image, make that the value of the register relevant with image is corresponding with the video standard that recognizes, like this after read the register relevant after searching TV signal with image at every turn value get final product, avoided searching after the TV signal identification to corresponding TV signal video standard at every turn, save the whole time of searching platform, reduced the complexity of searching platform.
Description of drawings
Fig. 1 is the flow chart of the channel search method of the television set that provides of the embodiment of the invention;
Fig. 2 is the structure principle chart of the channel searching system of the television set that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Because the platform mode of searching that prior art provides after searching TV signal, all needs the standard of the corresponding TV signal that searches is discerned, and has increased whole searching the platform time at every turn.Because that searches platform increases that process finishes at the three unities often at every turn, and a plurality of TV signal that arrive for same point searching, its standard is identical, for this reason, the channel search method that the embodiment of the invention provides carries out the automatic identification of a standard after searching TV signal first, and the value of the rewriting register relevant with image, make that the value of the register relevant with image and the video standard that recognizes are corresponding, like this after read the register relevant after searching TV signal with image at every turn value get final product.
Fig. 1 shows the flow process of the channel search method of the television set that the embodiment of the invention provides.
In step S101, receive and to search the platform signal, and search the platform signal according to this and begin the searching television signal.
Searching the platform signal and both can manually search the platform signal wherein, it also can be the automatic channel search signal, and before step S101, can also may further comprise the steps: the default platform frequency range of searching, then searching step that the platform signal begins the searching television signal according to this specifically is to search the platform signal according to this to begin in default searching television signal in the platform frequency range, the speed of searching platform with raising of searching.
In step S102, the video standard of the TV signal that searches first of identification, and the value of the rewriting register relevant with image, the value of the feasible register relevant with image and the video standard that recognizes are corresponding.
The video standard of TV signal wherein can be any in the multiple video standard that can decode that prestores in the television set decoding chip, for example, pal mode, the Sequential Color and Memory system formula, video standards such as TSC-system formula, and kind and quantity according to the video standard that prestores in the decoding chip, can adopt existing any standard RM that the TV signal that searches is first carried out video standard identification, for example, pal mode has prestored in decoding chip, when Sequential Color and Memory system formula and TSC-system formula, can adopt the recognition methods of common standard: calculate level (OK) the synchronizing signal number that occurs in the time interval of adjacent two vertical (field) synchronizing signals, if count results is about 321.5 (15625/50), then judge this TV signal be the PAL/SECAM standard (OK, field-scanning period is 15625Hz, 50Hz), if count results is about 262.5 (15750/60), then judge this TV signal be the TSC-system formula (OK, field-scanning period is 15750Hz, 60Hz), take preferential diagnostic method of pal mode or Sequential Color and Memory system formula diagnostic method to identify pal mode and Sequential Color and Memory system formula afterwards, with the preferential diagnostic method of pal mode is example, make the circuit such as decoding in the television set be in the state that receives the PAL signal earlier, if the colour killer circuit in the television set is failure to actuate, then show the TV signal received PAL signal really; If the colour killer circuit action shows that then the TV signal of receiving is SECAM or black/white (B/w) signal.
In step S103, when searching other TV signal, read the value of the register relevant with image, the corresponding video standard of value of register that will be relevant with image is defined as the video standard of other TV signal.
Since the channel search method that provides of the embodiment of the invention identify search TV signal first after, rewrite the value of the register relevant with image, make that the value of the register relevant with image is corresponding with the video standard that recognizes, like this after read the register relevant after searching TV signal with image at every turn value get final product, avoided searching after the TV signal identification to corresponding TV signal video standard at every turn, save the whole time of searching platform, reduced the complexity of searching platform.
In order further to save the whole time of searching platform, in the embodiment of the invention, before the step of the video standard of discerning the TV signal that searches first, afterwards or simultaneously, can also may further comprise the steps: the sound accompaniment standard of the TV signal that identification searches first, and the value of the rewriting register relevant with sound accompaniment, make that the value of the register relevant with sound accompaniment is corresponding with the sound accompaniment standard that recognizes, then after searching the step of other TV signal, can also may further comprise the steps: read the value of the register relevant, be the sound accompaniment standard of corresponding TV signal with sound accompaniment.Avoid searching TV signal afterwards to the identification of corresponding TV signal sound accompaniment standard at every turn, further saved the whole time of searching platform.The sound accompaniment standard of TV signal wherein can be any in the multiple sound accompaniment standard that can decode that prestores in the television set decoding chip, for example, D/K, B/G, sound accompaniment standards such as I, and, can adopt existing any standard RM that the TV signal that searches is first carried out the identification of sound accompaniment standard according to the kind and the quantity of the sound accompaniment standard that prestores in the decoding chip.
Fig. 2 is the structural principle of the channel searching system of the television set that provides of the embodiment of the invention, for convenience of explanation, only shows the part relevant with the embodiment of the invention.
Signal receiving unit 11 is used for receiving searches the platform signal, TV signal search unit 12 is used for beginning the searching television signal according to the platform signal of searching that signal receiving unit 11 receives, standard recognition unit 13 is used to discern the video standard of the TV signal that TV signal search unit 12 searches first, rewrite the value that unit 14 is used to rewrite the register relevant with image 16, make that the value of the register 16 relevant with image and video standard that standard recognition unit 13 recognizes are corresponding, reading unit 17 is used for when TV signal search unit 12 searches other TV signal, read the value of the register relevant with image 16, the corresponding video standard of value of register that will be relevant with image is defined as the video standard of other TV signal.
Wherein signal receiving unit 11 receives searches the platform signal and both can manually search the platform signal, it also can be the automatic channel search signal, and the channel searching system of the television set that the embodiment of the invention provides can also comprise searches platform predetermined frequency unit (not shown), be used for the default platform frequency range of searching, then TV signal search unit 12 be at this moment according to signal receiving unit 11 receive search the platform signal begin search platform predetermined frequency unit default search searching television signal in the platform frequency range, the speed of searching platform with raising.Wherein the mode of the video standard of the TV signal that searches of standard recognition unit 13 identification TV signal search units 12 does not repeat them here as mentioned above.
Because the channel searching system that provides of the embodiment of the invention is after standard recognition unit 13 identifies TV signal search unit 12 and searches TV signal first, by rewriting the value that the register 16 relevant with image rewritten in unit 14, make that the value of the register 16 relevant with image and video standard that standard recognition unit 13 recognizes are corresponding, like this after read the register relevant 16 after searching TV signal with image at every turn value get final product, avoided searching after the TV signal identification to corresponding TV signal video standard at every turn, save the whole time of searching platform, reduced the complexity of searching platform.
In order further to save the whole time of searching platform, the channel searching system of the television set that the embodiment of the invention provides can also comprise the register relevant with sound accompaniment 15, standard recognition unit 13 also is used to discern the sound accompaniment standard of the TV signal that TV signal search unit 12 searches first, rewrite the value that unit 14 also is used to rewrite the register relevant with sound accompaniment 15, make that the value of the register 15 relevant with sound accompaniment and sound accompaniment standard that standard recognition unit 13 recognizes are corresponding, reading unit 17 also is used for when TV signal search unit 12 searches other TV signal, read the value of the register relevant 15 with sound accompaniment, be the sound accompaniment standard of corresponding TV signal, avoid searching TV signal afterwards to the identification of corresponding TV signal sound accompaniment standard at every turn, further saved the whole time of searching platform.The sound accompaniment standard of TV signal wherein can be any in the multiple sound accompaniment standard that can decode that prestores in the television set decoding chip, for example, D/K, B/G, sound accompaniment standards such as I, and, can adopt existing any standard RM that the TV signal that searches is first carried out the identification of sound accompaniment standard according to the kind and the quantity of the sound accompaniment standard that prestores in the decoding chip.
The embodiment of the invention also provides a kind of television set, comprises as mentioned above the channel searching system of television set.
Since the channel search method that provides of the embodiment of the invention identify search TV signal first after, rewrite the value of the register relevant with image, make that the value of the register relevant with image is corresponding with the video standard that recognizes, like this after read the register relevant after searching TV signal with image at every turn value get final product, avoided searching after the TV signal identification to corresponding TV signal video standard at every turn, save the whole time of searching platform, reduced the complexity of searching platform; In addition, by discerning the sound accompaniment standard of the TV signal that searches first, and the value of the rewriting register relevant with sound accompaniment, make that the value of the register relevant with sound accompaniment is corresponding with the sound accompaniment standard that recognizes, and then make search other TV signal after, read the value of the register relevant with sound accompaniment, be the sound accompaniment standard of corresponding TV signal, avoid searching TV signal afterwards to the identification of corresponding TV signal sound accompaniment standard at every turn, further saved the whole time of searching platform.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is can control relevant hardware by program to finish, described program can be in being stored in a computer read/write memory medium, described storage medium is as ROM/RAM, disk, CD etc.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the channel search method of a television set is characterized in that, described television set comprises the register relevant with image, said method comprising the steps of:
The platform signal is searched in reception, and begins the searching television signal according to the described platform signal of searching;
The video standard of the TV signal that searches first of identification, and the value of rewriting the described register relevant with image make that the value of the described register relevant with image and the described video standard that recognizes are corresponding;
When searching other TV signal, read the value of the described register relevant with image, will be with described the corresponding video standard of the value of relevant register be defined as the video standard of described other TV signal with image.
2. the channel search method of television set as claimed in claim 1 is characterized in that, searches in described reception before the step of platform signal, and described method is further comprising the steps of: the default platform frequency range of searching;
Describedly search the step that the platform signal begins the searching television signal and be specially: begin at the default described searching television signal in the platform frequency range of searching according to the described platform signal of searching according to described.
3. the channel search method of television set as claimed in claim 1 is characterized in that, the video standard of described TV signal is a pal mode, Sequential Color and Memory system formula or TSC-system formula.
4. the channel search method of television set as claimed in claim 1, it is characterized in that, described television set also comprises the register relevant with sound accompaniment, before the step of the video standard of the TV signal that described identification searches first, afterwards or simultaneously, described method is further comprising the steps of: the sound accompaniment standard of the TV signal that identification searches first, and the value of rewriting the described register relevant with sound accompaniment, make that the value of the described register relevant with sound accompaniment is corresponding with the described sound accompaniment standard that recognizes;
After the described step that searches other TV signal, described method is further comprising the steps of: read the value of the described register relevant with sound accompaniment, be the sound accompaniment standard of corresponding TV signal.
5. the channel searching system of a television set is characterized in that, described system comprises:
The register relevant with image;
Signal receiving unit is used for receiving and searches the platform signal;
The TV signal search unit is used for beginning the searching television signal according to the platform signal of searching that described signal receiving unit receives;
The standard recognition unit is used to discern the video standard of the TV signal that described TV signal search unit searches first;
Rewrite the unit, be used to rewrite the value of the described register relevant, make that the value of the described register relevant with image and video standard that described standard recognition unit recognizes are corresponding with image;
Reading unit, be used for when described TV signal search unit searches other TV signal, read the value of the described register relevant with image, will be with described the corresponding video standard of the value of relevant register be defined as the video standard of described other TV signal with image.
6. the channel searching system of television set as claimed in claim 5, it is characterized in that, described system also comprise one be used for default search the platform frequency range search platform predetermined frequency unit, described TV signal search unit be according to described signal receiving unit receive search the platform signal begin described search platform predetermined frequency unit default search searching television signal in the platform frequency range.
7. the channel searching system of television set as claimed in claim 5 is characterized in that, the video standard of described TV signal is a pal mode, Sequential Color and Memory system formula or TSC-system formula.
8. the channel searching system of television set as claimed in claim 5, it is characterized in that, described system also comprises the register relevant with sound accompaniment, described standard recognition unit also is used to discern the sound accompaniment standard of the TV signal that described TV signal search unit searches first, described rewriting unit also is used to rewrite the value of the described register relevant with sound accompaniment, make that the value of the described register relevant with sound accompaniment and sound accompaniment standard that described standard recognition unit recognizes are corresponding, described reading unit also is used for when described TV signal search unit searches other TV signal, read the value of the described register relevant, be the sound accompaniment standard of corresponding TV signal with sound accompaniment.
9. television set comprises the channel searching system of a television set it is characterized in that the channel searching system of described television set adopts the channel searching system as each described television set of claim 5 to 8.
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| CN201010042744.1A CN102123261B (en) | 2010-01-11 | 2010-01-11 | Television as well as channel search method and system thereof |
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| 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 |
| CN110769181A (en) * | 2018-07-25 | 2020-02-07 | 杭州海康威视数字技术股份有限公司 | Video signal system identification method and device, electronic equipment and readable storage medium |
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| US11930158B2 (en) | 2018-07-25 | 2024-03-12 | Hangzhou Hikvision Digital Technology Co., Ltd. | Video signal identification method and apparatus, electronic device and readable storage medium |
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