WO2008061246A3 - Procédé et appareil pour la détection de type de signal audio de télévision - Google Patents

Procédé et appareil pour la détection de type de signal audio de télévision Download PDF

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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
Application number
PCT/US2007/085014
Other languages
English (en)
Other versions
WO2008061246A2 (fr
Inventor
Yi Feng
Yong Huang
Original Assignee
Ess Technology Inc
Yi Feng
Yong Huang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ess Technology Inc, Yi Feng, Yong Huang filed Critical Ess Technology Inc
Publication of WO2008061246A2 publication Critical patent/WO2008061246A2/fr
Publication of WO2008061246A3 publication Critical patent/WO2008061246A3/fr

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 encoded video stream 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

L'invention concerne un appareil à circuit décodeur de télévision qui traite un signal audio de télévision et effectue une identification d'un signal audio stéréo de télévision ou d'un signal audio double langage de télévision, de sorte que l'appareil à circuit décodeur peut détecter à la fois un signal audio stéréo de télévision et un signal audio double langage de télévision. L'appareil à circuit décodeur de télévision comprend un circuit de détection de période, un circuit de mesure d'énergie, et un circuit de décision de signal audio de télévision. Dans certains modes de réalisation, le circuit de détection de période et le circuit de mesure d'énergie fonctionnent dans un domaine numérique. Le procédé consiste à détecter une période du signal audio de télévision, à mesurer une énergie du signal audio de télévision, et à identifier un signal audio stéréo de télévision en fonction de l'accord de ladite période et de ladite énergie sur l'identification. Un autre procédé consiste à détecter une période du signal audio de télévision, à mesurer une énergie du signal audio de télévision, et à identifier un signal audio double langage de télévision en fonction de l'accord de ladite période et de ladite énergie sur l'identification.
PCT/US2007/085014 2006-11-16 2007-11-16 Procédé et appareil pour la détection de type de signal audio de télévision WO2008061246A2 (fr)

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 (fr) 2008-05-22
WO2008061246A3 true WO2008061246A3 (fr) 2008-07-17

Family

ID=39402514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/085014 WO2008061246A2 (fr) 2006-11-16 2007-11-16 Procédé et appareil pour la détection de type de signal audio de télévision

Country Status (1)

Country Link
WO (1) WO2008061246A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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 (fr) 2008-05-22

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