WO2009040950A1 - 音信号制御装置 - Google Patents

音信号制御装置 Download PDF

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Publication number
WO2009040950A1
WO2009040950A1 PCT/JP2007/069053 JP2007069053W WO2009040950A1 WO 2009040950 A1 WO2009040950 A1 WO 2009040950A1 JP 2007069053 W JP2007069053 W JP 2007069053W WO 2009040950 A1 WO2009040950 A1 WO 2009040950A1
Authority
WO
WIPO (PCT)
Prior art keywords
audio
changeover
playback
playback speed
moving image
Prior art date
Application number
PCT/JP2007/069053
Other languages
English (en)
French (fr)
Inventor
Toshiro Ohbitsu
Original Assignee
Fujitsu Limited
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 Limited filed Critical Fujitsu Limited
Priority to KR1020107006291A priority Critical patent/KR101189733B1/ko
Priority to JP2009534135A priority patent/JP5141689B2/ja
Priority to PCT/JP2007/069053 priority patent/WO2009040950A1/ja
Priority to CN200780100829.7A priority patent/CN101809999B/zh
Priority to EP07828794A priority patent/EP2202973A4/en
Publication of WO2009040950A1 publication Critical patent/WO2009040950A1/ja
Priority to US12/727,508 priority patent/US8634697B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • 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
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4147—PVR [Personal Video Recorder]
    • 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
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • 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
    • H04N21/4396—Processing of audio elementary streams by muting the audio signal
    • 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 or rendering scenes according to encoded video stream scene graphs
    • H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream 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
    • 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 or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • 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 or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • 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 or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
    • H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

　一致度が高い動画像が続いている場合に、音出力をミュートし、再生速度を切り替えることにより、ノイズの発生を抑える技術を提供する。このため、音及び動画像の再生装置が、動画信号及び音信号を含む入力データの再生速度の変更を決定し、前記再生中に前記変更決定部が異なる再生速度への変更を決定した場合に、動画像の一致度が所定値以上の期間を切り替えタイミングとして検出し、前記入力データに基づいて音及び動画像を再生し、前記変更決定部によって再生速度の変更が決定された場合に、前記切り替えタイミングで再生速度を切り替え、前記切り替えタイミングで前記音信号に基づく音出力をミュートする。
PCT/JP2007/069053 2007-09-28 2007-09-28 音信号制御装置 WO2009040950A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020107006291A KR101189733B1 (ko) 2007-09-28 2007-09-28 음 신호 제어 장치
JP2009534135A JP5141689B2 (ja) 2007-09-28 2007-09-28 音信号制御装置
PCT/JP2007/069053 WO2009040950A1 (ja) 2007-09-28 2007-09-28 音信号制御装置
CN200780100829.7A CN101809999B (zh) 2007-09-28 2007-09-28 声音信号控制装置
EP07828794A EP2202973A4 (en) 2007-09-28 2007-09-28 AUDIO SIGNAL CONTROLLER
US12/727,508 US8634697B2 (en) 2007-09-28 2010-03-19 Sound signal control device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/069053 WO2009040950A1 (ja) 2007-09-28 2007-09-28 音信号制御装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/727,508 Continuation US8634697B2 (en) 2007-09-28 2010-03-19 Sound signal control device and method

Publications (1)

Publication Number Publication Date
WO2009040950A1 true WO2009040950A1 (ja) 2009-04-02

Family

ID=40510863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/069053 WO2009040950A1 (ja) 2007-09-28 2007-09-28 音信号制御装置

Country Status (6)

Country Link
US (1) US8634697B2 (ja)
EP (1) EP2202973A4 (ja)
JP (1) JP5141689B2 (ja)
KR (1) KR101189733B1 (ja)
CN (1) CN101809999B (ja)
WO (1) WO2009040950A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5701017B2 (ja) * 2010-11-09 2015-04-15 キヤノン株式会社 動画再生装置、動画再生方法、コンピュータプログラム、記憶媒体
JP6732547B2 (ja) * 2016-06-10 2020-07-29 キヤノン株式会社 撮像装置及びその制御方法
WO2018034371A1 (ko) * 2016-08-19 2018-02-22 스노우 주식회사 동영상 처리 장치, 방법 및 컴퓨터 프로그램
US10722990B2 (en) 2016-09-15 2020-07-28 General Electric Company Method for installing and removing modularized silencer baffles
US10119469B2 (en) 2016-09-15 2018-11-06 General Electric Company Method and apparatus for modularized inlet silencer baffles
CN108278158B (zh) 2017-01-06 2022-05-13 通用电气公司 用于改进的入口消音挡板的系统和方法
CN108278157B (zh) 2017-01-06 2022-08-02 通用电气公司 用于改进的入口消音挡板的系统和方法
JP7490330B2 (ja) 2018-06-27 2024-05-27 三菱重工サーマルシステムズ株式会社 フィルタ清掃ユニット及び空気調和機
JP2022077231A (ja) * 2020-11-11 2022-05-23 キヤノン株式会社 音響処理装置、音響処理方法、およびプログラム

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH06337696A (ja) 1993-05-28 1994-12-06 Matsushita Electric Ind Co Ltd 速度変換制御装置と速度変換制御方法
JPH0779411A (ja) * 1993-09-06 1995-03-20 Sony Corp 画像信号再生方法および画像信号再生装置、ならびに 画像信号記録媒体
JPH07212319A (ja) 1994-01-17 1995-08-11 Nec Eng Ltd ディジタル音声信号切替ノイズ抑圧装置
JPH0855384A (ja) * 1994-08-17 1996-02-27 Sony Corp 電子情報装置
JP2004214902A (ja) 2002-12-27 2004-07-29 Matsushita Electric Ind Co Ltd ストリーミング再生携帯端末、ストリーミング再生方法、コンピュータプログラム、並びにコンピュータ読み取り可能な記録媒体

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JP3602635B2 (ja) * 1995-02-16 2004-12-15 株式会社東芝 音声切換方法および再生装置
KR100254090B1 (ko) * 1995-02-16 2000-04-15 니시무로 타이죠 기록 매체 재생 장치
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06337696A (ja) 1993-05-28 1994-12-06 Matsushita Electric Ind Co Ltd 速度変換制御装置と速度変換制御方法
JPH0779411A (ja) * 1993-09-06 1995-03-20 Sony Corp 画像信号再生方法および画像信号再生装置、ならびに 画像信号記録媒体
JPH07212319A (ja) 1994-01-17 1995-08-11 Nec Eng Ltd ディジタル音声信号切替ノイズ抑圧装置
JPH0855384A (ja) * 1994-08-17 1996-02-27 Sony Corp 電子情報装置
JP2004214902A (ja) 2002-12-27 2004-07-29 Matsushita Electric Ind Co Ltd ストリーミング再生携帯端末、ストリーミング再生方法、コンピュータプログラム、並びにコンピュータ読み取り可能な記録媒体

Non-Patent Citations (1)

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Title
See also references of EP2202973A4

Also Published As

Publication number Publication date
EP2202973A4 (en) 2012-01-11
JP5141689B2 (ja) 2013-02-13
US8634697B2 (en) 2014-01-21
US20100172633A1 (en) 2010-07-08
EP2202973A1 (en) 2010-06-30
KR101189733B1 (ko) 2012-10-10
KR20100049655A (ko) 2010-05-12
CN101809999A (zh) 2010-08-18
JPWO2009040950A1 (ja) 2011-01-13
CN101809999B (zh) 2012-07-18

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