BR0315310A - Sistema e método para determinar sincronismo labial entre áudio e vìdeo em um ambiente digitalizado usando cálculo de armazenamento provisório - Google Patents

Sistema e método para determinar sincronismo labial entre áudio e vìdeo em um ambiente digitalizado usando cálculo de armazenamento provisório

Info

Publication number
BR0315310A
BR0315310A BR0315310-0A BR0315310A BR0315310A BR 0315310 A BR0315310 A BR 0315310A BR 0315310 A BR0315310 A BR 0315310A BR 0315310 A BR0315310 A BR 0315310A
Authority
BR
Brazil
Prior art keywords
audio
video
level
interim storage
storage
Prior art date
Application number
BR0315310-0A
Other languages
English (en)
Inventor
Devon Matthew Johnson
Phillip Aaron Junkersfeld
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of BR0315310A publication Critical patent/BR0315310A/pt

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
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/23406—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving management of server-side video buffer
    • 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]
    • H04N21/40—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
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/44—Colour synchronisation
    • H04N9/475—Colour synchronisation for mutually locking different synchronisation sources
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
    • H04N5/0736—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations using digital storage buffer techniques

Abstract

"SISTEMA E MéTODO PARA DETERMINAR SINCRONISMO LABIAL ENTRE áUDIO E VìDEO EM UM AMBIENTE DIGITALIZADO USANDO CáLCULO DE ARMAZENAMENTO PROVISóRIO". As modalidades reveladas dizem respeito a um sistema (23) e método (400) para manter sincronismo entre um sinal de vídeo (29) e um sinal de áudio (31) que são processados usando relógios que são travados. O sistema (23) pode compreender um componente (34) que determina pelo menos um nível inicial de um armazenamento provisório, um componente (34) que determina pelo menos um nível atual do armazenamento provisório, e um componente (34) que determina um valor de deriva, comparando o pelo menos um nível inicial do armazenamento provisório com o pelo menos um nível atual do armazenamento provisório, e ajusta os relógios de forma a manter o nível do ponto médio inicial do armazenamento provisório, se o valor de deriva atingir um nível limiar.
BR0315310-0A 2002-11-07 2003-10-31 Sistema e método para determinar sincronismo labial entre áudio e vìdeo em um ambiente digitalizado usando cálculo de armazenamento provisório BR0315310A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42445102P 2002-11-07 2002-11-07
PCT/US2003/034644 WO2004045197A2 (en) 2002-11-07 2003-10-31 A system and method for determining lip synchronization between audio and video in a digitized environment using buffer calculation

Publications (1)

Publication Number Publication Date
BR0315310A true BR0315310A (pt) 2005-08-16

Family

ID=32312810

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0315310-0A BR0315310A (pt) 2002-11-07 2003-10-31 Sistema e método para determinar sincronismo labial entre áudio e vìdeo em um ambiente digitalizado usando cálculo de armazenamento provisório

Country Status (9)

Country Link
US (1) US7283175B2 (pt)
EP (1) EP1559265A4 (pt)
JP (1) JP4482911B2 (pt)
KR (1) KR100984818B1 (pt)
CN (1) CN100367313C (pt)
AU (1) AU2003286797A1 (pt)
BR (1) BR0315310A (pt)
MX (1) MXPA05004938A (pt)
WO (1) WO2004045197A2 (pt)

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US8022773B2 (en) 2004-12-17 2011-09-20 Mitsubishi Electric Corporation Clock signal generation device, and wireless base station
KR100875592B1 (ko) * 2005-03-18 2008-12-23 후지쯔 가부시끼가이샤 영상 장치에서의 영상 신호와 음성 신호와의 동기 제어방법 및 장치
CN100442858C (zh) 2005-10-11 2008-12-10 华为技术有限公司 分组网络中多媒体实时传输的唇同步方法及其装置
US9692537B2 (en) * 2005-10-18 2017-06-27 Avago Technologies General Ip (Singapore) Pte. Ltd. System, method, and apparatus for jitter reduction in a video decoder system
JP2007124090A (ja) * 2005-10-26 2007-05-17 Renesas Technology Corp 情報機器
US20070124331A1 (en) * 2005-11-30 2007-05-31 Sony Ericsson Mobile Communications Ab Method and apparatus for the seamless delivery of content
US20080144505A1 (en) * 2006-11-03 2008-06-19 Michael Anthony Isnardi Method and Apparatus for Bitrate Reduction
CN101212690B (zh) * 2006-12-26 2011-04-20 中兴通讯股份有限公司 多媒体视音频流唇音同步的调测方法
US7760749B2 (en) * 2007-01-11 2010-07-20 Via Technologies, Inc. Apparatus and method for deskewing 1000 BASE-T Ethernet physical layer signals
WO2009095839A1 (en) * 2008-01-28 2009-08-06 Nxp B.V. Device and method for decoding digital tv broadcast
US8731370B2 (en) 2009-01-12 2014-05-20 At&T Intellectual Property I, L.P. Method and device for transmitting audio and video for playback
EP2254342A1 (de) * 2009-05-18 2010-11-24 Albis Technologies AG Verfahren zur Audio-/Videosynchronisation
EP2323392B1 (en) * 2009-11-03 2012-01-04 Tektronix International Sales GmbH Method and apparatus for measuring delay within a compressed digital stream
US8217689B2 (en) * 2010-01-19 2012-07-10 Integrated Device Technology, Inc. Method and circuit for DisplayPort video clock recovery
GB2509313A (en) * 2012-12-27 2014-07-02 Barco Nv Managing a queue of video frames using the current queue fill level
EP3160147A1 (en) * 2015-10-19 2017-04-26 Thomson Licensing Method for fast channel change, corresponding arrangement and device
KR20180068069A (ko) 2016-12-13 2018-06-21 삼성전자주식회사 전자 장치 및 이의 제어 방법

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Also Published As

Publication number Publication date
KR100984818B1 (ko) 2010-10-05
EP1559265A4 (en) 2010-09-15
US20060103760A1 (en) 2006-05-18
CN100367313C (zh) 2008-02-06
JP4482911B2 (ja) 2010-06-16
MXPA05004938A (es) 2005-07-22
AU2003286797A1 (en) 2004-06-03
WO2004045197A2 (en) 2004-05-27
AU2003286797A8 (en) 2004-06-03
WO2004045197A3 (en) 2004-07-15
KR20050074555A (ko) 2005-07-18
US7283175B2 (en) 2007-10-16
CN1703723A (zh) 2005-11-30
EP1559265A2 (en) 2005-08-03
JP2006506015A (ja) 2006-02-16

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 10A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2260 DE 29/04/2014.