WO2008061246A3 - Method and apparatus for television audio signal type detection - Google Patents
Method and apparatus for television audio signal type detection Download PDFInfo
- Publication number
- WO2008061246A3 WO2008061246A3 PCT/US2007/085014 US2007085014W WO2008061246A3 WO 2008061246 A3 WO2008061246 A3 WO 2008061246A3 US 2007085014 W US2007085014 W US 2007085014W WO 2008061246 A3 WO2008061246 A3 WO 2008061246A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- audio signal
- television
- identification
- period
- circuit
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
Abstract
A television decoder circuit apparatus processes a television audio signal and makes an identification of any of a television stereo audio signal and a television dual language audio signal, such that decoder circuit apparatus has both the ability to detect a television stereo audio signal and the ability to detect a television dual language audio signal. The television decoder circuit apparatus includes a period detection circuit, an energy measurement circuit, and television audio signal decision circuit, in some embodiments, the period detection circuit and energy measurement circuit operate in a digital domain. A method detects a period of the television audio signal, measures an energy of the television audio signal, and makes the identification of the television stereo audio signal, based on agreement of said period and said energy on the identification.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86619206P | 2006-11-16 | 2006-11-16 | |
US60/866,192 | 2006-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008061246A2 WO2008061246A2 (en) | 2008-05-22 |
WO2008061246A3 true WO2008061246A3 (en) | 2008-07-17 |
Family
ID=39402514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/085014 WO2008061246A2 (en) | 2006-11-16 | 2007-11-16 | Method and apparatus for television audio signal type detection |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2008061246A2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5519443A (en) * | 1991-12-24 | 1996-05-21 | National Captioning Institute, Inc. | Method and apparatus for providing dual language captioning of a television program |
US5911029A (en) * | 1996-03-14 | 1999-06-08 | Sanyo Electric Co., Ltd. | Apparatus for recording and playback of a television broadcast signal capable of playback with commercials skipped by a simple operation |
US6343179B1 (en) * | 1997-02-04 | 2002-01-29 | Sony Corporation | Method and apparatus for recording a TV signal, method and apparatus for reproducing a TV signal, apparatus for recording and reproducing a TV signal, and recording medium |
US20040228605A1 (en) * | 2003-05-12 | 2004-11-18 | Ronald Quan | Method and apparatus for reducing and restoring the effectiveness of a commercial skip system |
-
2007
- 2007-11-16 WO PCT/US2007/085014 patent/WO2008061246A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5519443A (en) * | 1991-12-24 | 1996-05-21 | National Captioning Institute, Inc. | Method and apparatus for providing dual language captioning of a television program |
US5911029A (en) * | 1996-03-14 | 1999-06-08 | Sanyo Electric Co., Ltd. | Apparatus for recording and playback of a television broadcast signal capable of playback with commercials skipped by a simple operation |
US6343179B1 (en) * | 1997-02-04 | 2002-01-29 | Sony Corporation | Method and apparatus for recording a TV signal, method and apparatus for reproducing a TV signal, apparatus for recording and reproducing a TV signal, and recording medium |
US20040228605A1 (en) * | 2003-05-12 | 2004-11-18 | Ronald Quan | Method and apparatus for reducing and restoring the effectiveness of a commercial skip system |
Also Published As
Publication number | Publication date |
---|---|
WO2008061246A2 (en) | 2008-05-22 |
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