WO2009028038A1 - デコーダ装置、およびデコード方法 - Google Patents

デコーダ装置、およびデコード方法 Download PDF

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Publication number
WO2009028038A1
WO2009028038A1 PCT/JP2007/066557 JP2007066557W WO2009028038A1 WO 2009028038 A1 WO2009028038 A1 WO 2009028038A1 JP 2007066557 W JP2007066557 W JP 2007066557W WO 2009028038 A1 WO2009028038 A1 WO 2009028038A1
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WO
WIPO (PCT)
Prior art keywords
time information
video
audio
output time
difference value
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/066557
Other languages
English (en)
French (fr)
Inventor
Shin Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to KR1020107002258A priority Critical patent/KR101132043B1/ko
Priority to JP2009529888A priority patent/JP4983923B2/ja
Priority to PCT/JP2007/066557 priority patent/WO2009028038A1/ja
Publication of WO2009028038A1 publication Critical patent/WO2009028038A1/ja
Priority to US12/656,509 priority patent/US8526501B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Systems (AREA)

Abstract

　ビデオストリームとオーディオストリームとを正確に同期して出力する。 　ビデオストリーム（６ａ）が入力されると、ビデオフレームに付与されたビデオ出力時刻情報が抽出される。その後、差分値計算手段（４ａ）により、同期信号（８）の発生時刻とビデオ出力時刻情報との差分値が計算される。さらに、オーディオ出力時刻補正手段（４ｂ）により、差分値を用いてオーディオフレームそれぞれに付与されたオーディオ出力時刻情報が補正される。そして、画像出力手段（２ｂ）により、同期信号（８）に同期してビデオフレームで示される画像が出力される。また、音声出力手段（３ｂ）により、基準時刻情報の値と補正後のビデオ出力時刻情報の値とが一致したときに、一致したオーディオ出力時刻情報が付与されたオーディオフレームで示される音声が出力される。
PCT/JP2007/066557 2007-08-27 2007-08-27 デコーダ装置、およびデコード方法 Ceased WO2009028038A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020107002258A KR101132043B1 (ko) 2007-08-27 2007-08-27 디코더 장치 및 디코드 방법
JP2009529888A JP4983923B2 (ja) 2007-08-27 2007-08-27 デコーダ装置、およびデコード方法
PCT/JP2007/066557 WO2009028038A1 (ja) 2007-08-27 2007-08-27 デコーダ装置、およびデコード方法
US12/656,509 US8526501B2 (en) 2007-08-27 2010-02-01 Decoder and decoding method based on video and audio time information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/066557 WO2009028038A1 (ja) 2007-08-27 2007-08-27 デコーダ装置、およびデコード方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/656,509 Continuation US8526501B2 (en) 2007-08-27 2010-02-01 Decoder and decoding method based on video and audio time information

Publications (1)

Publication Number Publication Date
WO2009028038A1 true WO2009028038A1 (ja) 2009-03-05

Family

ID=40386782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/066557 Ceased WO2009028038A1 (ja) 2007-08-27 2007-08-27 デコーダ装置、およびデコード方法

Country Status (4)

Country Link
US (1) US8526501B2 (ja)
JP (1) JP4983923B2 (ja)
KR (1) KR101132043B1 (ja)
WO (1) WO2009028038A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013145225A1 (ja) * 2012-03-29 2013-10-03 富士通株式会社 エレメンタリストリームをエンコードし、多重し、またはデコードするための方法、装置、およびプログラム

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Publication number Priority date Publication date Assignee Title
KR101138396B1 (ko) 2007-09-11 2012-04-26 삼성전자주식회사 Ｉｐｔｖ 단말기에서 컨텐츠 재생 방법 및 장치
US20120281704A1 (en) * 2011-05-02 2012-11-08 Butterworth Ashley I Methods and apparatus for isochronous data delivery within a network
EP2728858B1 (en) * 2011-08-12 2018-05-23 Samsung Electronics Co., Ltd. Receiving apparatus and receiving method thereof
KR101917174B1 (ko) 2012-02-24 2018-11-09 삼성전자주식회사 전자 장치 사이의 스트림 전송 방법 및 그 방법을 처리하는 전자 장치
EP2948949A4 (en) * 2013-01-24 2016-09-21 Telesofia Medical Ltd SYSTEM AND METHOD FOR FLEXIBLE VIDEO CONSTRUCTION
US9674539B2 (en) * 2013-03-14 2017-06-06 Infocus Corporation Concurrent decompression of multiple video streams with constrained decompression resources
US9591358B2 (en) * 2013-03-15 2017-03-07 Intel Corporation Media playback workload scheduler
CN104811782B (zh) * 2014-01-29 2018-03-02 晨星半导体股份有限公司 同步影音码流的解码器与解码方法
CN106658065B (zh) * 2015-10-30 2021-10-22 中兴通讯股份有限公司 音视频同步方法、装置及系统
CN106385628A (zh) * 2016-09-23 2017-02-08 努比亚技术有限公司 一种分析音视频不同步的装置及方法
CN115883748B (zh) * 2022-11-28 2024-10-22 中汽创智科技有限公司 一种数据回放的同步方法、装置、电子设备及存储介质

Citations (4)

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JPH07170490A (ja) * 1993-10-14 1995-07-04 Victor Co Of Japan Ltd 画像の表示時刻情報をもデータとして含む圧縮画像データと、それに付随する圧縮音響データとの同期再生方法
JP2002176643A (ja) * 2000-12-06 2002-06-21 Hitachi Kokusai Electric Inc 映像・音声復号処理における映像・音声の同期再生方式
JP2004357267A (ja) * 2002-07-31 2004-12-16 Fujitsu Ltd 動画再生装置及び動画再生方法
JP2006148335A (ja) * 2004-11-17 2006-06-08 Sony Corp データ処理装置、その方法及びプログラム

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JPH0965303A (ja) 1995-08-28 1997-03-07 Canon Inc 映像音声同期方法及び装置
US6148135A (en) * 1996-01-29 2000-11-14 Mitsubishi Denki Kabushiki Kaisha Video and audio reproducing device and video decoding device
JP3698376B2 (ja) * 1996-08-19 2005-09-21 松下電器産業株式会社 同期再生装置
US6016166A (en) * 1998-08-31 2000-01-18 Lucent Technologies Inc. Method and apparatus for adaptive synchronization of digital video and audio playback in a multimedia playback system
US7103668B1 (en) * 2000-08-29 2006-09-05 Inetcam, Inc. Method and apparatus for distributing multimedia to remote clients
US6912010B2 (en) * 2002-04-15 2005-06-28 Tektronix, Inc. Automated lip sync error correction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07170490A (ja) * 1993-10-14 1995-07-04 Victor Co Of Japan Ltd 画像の表示時刻情報をもデータとして含む圧縮画像データと、それに付随する圧縮音響データとの同期再生方法
JP2002176643A (ja) * 2000-12-06 2002-06-21 Hitachi Kokusai Electric Inc 映像・音声復号処理における映像・音声の同期再生方式
JP2004357267A (ja) * 2002-07-31 2004-12-16 Fujitsu Ltd 動画再生装置及び動画再生方法
JP2006148335A (ja) * 2004-11-17 2006-06-08 Sony Corp データ処理装置、その方法及びプログラム

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013145225A1 (ja) * 2012-03-29 2013-10-03 富士通株式会社 エレメンタリストリームをエンコードし、多重し、またはデコードするための方法、装置、およびプログラム
JPWO2013145225A1 (ja) * 2012-03-29 2015-08-03 富士通株式会社 エレメンタリストリームをエンコードし、多重し、またはデコードするための方法、装置、およびプログラム
US9866898B2 (en) 2012-03-29 2018-01-09 Fujitsu Limited Elementary stream multiplexing method, multiplexing system, encoding or decoding method and apparatus

Also Published As

Publication number Publication date
US8526501B2 (en) 2013-09-03
KR20100030663A (ko) 2010-03-18
KR101132043B1 (ko) 2012-04-02
JP4983923B2 (ja) 2012-07-25
JPWO2009028038A1 (ja) 2010-11-25
US20100142624A1 (en) 2010-06-10

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