CN1419372A - Method for searching audio channel of digital television - Google Patents
Method for searching audio channel of digital television Download PDFInfo
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- CN1419372A CN1419372A CN 02144968 CN02144968A CN1419372A CN 1419372 A CN1419372 A CN 1419372A CN 02144968 CN02144968 CN 02144968 CN 02144968 A CN02144968 A CN 02144968A CN 1419372 A CN1419372 A CN 1419372A
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Abstract
The present invention provides a method for searching the digital television channel, it adopts the application technology satellite channel searching and analyzes the CT image of the channel and displays the special audio channel to the user's digital television searching audio channel after processing. The invention comprises searching the application technology satellite channel in all channels; analyzing the program information of the application technology satellite channel from the above searching channel and the television CT image extracted from the program information (PSIP); and judging whether the work style extracted from ATSC during the above data analyzing stage is the special work style for audio frequency; and in the stage of judging the work style.
Description
Technical field
The invention relates to search and play digital TV channel, promptly in each digital broadcast of the world, only search for the audio frequency dedicated channel and play, and this channel is offered the method for user's search Digital Television audio channel.
Background technology
Fig. 1 is the precedence diagram of existing channel searching method.As shown in the figure, it is by searching for national standard (NTSC) air access channel behind the tuning in to channels, the channel search stage (S1) that cable channel and application technology satellite (ATSC) air access channel is searched for; Whether the channel that judgement was searched in the above-mentioned channel search stage (S1) has program information (PSIP), if be parsed into TV CT image (TVCT), the data of being analyzed in the above-mentioned data analysis stage (S2) as data analysis stage (S2) of not entering routine analyzer work (PAT) and program directory (PMT) by audio/video in proportion differential integration (A/VPID) select channel and channel displayed to represent the stage (S3).
What use before is the channel searching method of all channels of search.It can search for all channels but the above-mentioned background technology exists, and wants the user who searches the digital audio dedicated channel for this and only retrieve the audio frequency dedicated channel one by one in numerous channels, thereby need to consume a large amount of time and manpower.
Summary of the invention
The purpose of this invention is to provide in digital broadcast search aerial applications technology satellite channel, analyze the TV CT image of its channel and show the searching method of the Digital Television audio frequency dedicated channel of selecting the audio frequency dedicated channel to the user.To solve above-mentioned existing problem.
The object of the present invention is achieved like this: the channel search stage of search application technology satellite channel in numerous channels, analysis is at the program information (PSIP) of the application technology satellite channel of above-mentioned channel search stage search, the numerical analysis stage of the TV CT image that routine analyzer information provides, whether the job category that judgement provides at above-mentioned numerical analysis stage and TV CT image is that the job category of audio frequency special use is judged the stage, in the above-mentioned job category judgement stage, be the audio frequency special use as job category, the then action by the audio/video proportional integral derivative changes channel displayed behind the image over to and represents that the stage forms for the audio frequency information that audio frequency dedicated channel and this channel are provided compensates and keeps.
As above-mentioned detailed description, the present invention is a user of rating Digital Television dedicated channel, in numerous channels, only retrieving the audio frequency dedicated channel shows, and the compensation of supplemental audio channel necessity and keep image and award demonstration, obtain the user who only wants to receive the audio frequency dedicated channel, must in numerous channels, directly search the great effect of the trouble of numerous channels.
Description of drawings
Fig. 1 is an audio channel searching method precedence diagram before
Fig. 2 is an audio frequency dedicated channel searching method precedence diagram of the present invention
Fig. 3 is the symbol description 100 that audio frequency dedicated channel of the present invention is showed exemplary graph pattern major part: channel is represented portion 200: the expression portion that compensates and keep the shadow screen
To expand effect to the effect of the audio frequency dedicated channel searching method of Digital Television of the present invention below, describe with reference to accompanying drawing 2 and accompanying drawing 3.Following embodiment only represents one of them example of the present invention, does not represent interest field of the present invention.
Embodiment
Fig. 2 is a Digital Television audio frequency dedicated channel searching method precedence diagram of the present invention, as shown in the figure, coordinate the channel search stage (ST1) of searching for the application technology satellite channel behind numerous channels, the numerical analysis stage (ST2) of the TV CT image that the program information of the channel that analysis was searched for from the above-mentioned channel search stage (ST1) and analysis are extracted in program information, the job category that judgement is extracted from above-mentioned data analysis stage (ST2) the TV CT image whether job category of audio frequency special use is judged the stage (ST3), when in the above-mentioned job category judgement stage being the audio frequency special use, by audio/video proportional integral derivative (A/VPID) action, provide the compensation of audio frequency information of audio frequency dedicated channel and channel thereof and the channel of keeping image to represent that the stage (ST4) constitutes.
Above-mentioned job category was judged in the stage (ST3), when not being the audio frequency special use as job category, will reply the above-mentioned channel search stage (ST1) again.
Fig. 3 is the exemplary graph that audio frequency dedicated channel of the present invention is showed.As shown in the figure, by according to Fig. 2 audio frequency dedicated channel of the present invention searching method, only will search the audio frequency dedicated channel can channel displayed represent portion (100), and for showing the audio frequency information of above-mentioned audio frequency dedicated channel, and the expression portion (200) that compensates and keep image constitutes, and shows to the user.
Claims (1)
1, a kind of searching method of Digital Television audio frequency dedicated channel, it is characterized in that playing digital channel, with the channel search stage of search application technology satellite channel, analysis is at the program information of the application technology satellite channel of above-mentioned channel search stage search, numerical analysis stage of the TV CT image that routine analyzer information provides and judge the above-mentioned numerical analysis stage and whether job category that TV CT image provides is that the job category of audio frequency special use is judged the stage, and be the audio frequency special use as job category in the above-mentioned job category judgement stage, the then action by the audio/video proportional integral derivative is for the audio frequency information that audio frequency dedicated channel and this channel are provided changes channel displayed over to after compensating and keep image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144968 CN1419372A (en) | 2002-12-19 | 2002-12-19 | Method for searching audio channel of digital television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02144968 CN1419372A (en) | 2002-12-19 | 2002-12-19 | Method for searching audio channel of digital television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1419372A true CN1419372A (en) | 2003-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02144968 Pending CN1419372A (en) | 2002-12-19 | 2002-12-19 | Method for searching audio channel of digital television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1419372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8004618B2 (en) | 2004-05-12 | 2011-08-23 | Fujitsu Ten Limited | Digital broadcast receiver |
-
2002
- 2002-12-19 CN CN 02144968 patent/CN1419372A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8004618B2 (en) | 2004-05-12 | 2011-08-23 | Fujitsu Ten Limited | Digital broadcast receiver |
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