GB2526330B - Method and apparatus for synchronizing the display of video data on two display devices - Google Patents

Method and apparatus for synchronizing the display of video data on two display devices

Info

Publication number
GB2526330B
GB2526330B GB1409048.4A GB201409048A GB2526330B GB 2526330 B GB2526330 B GB 2526330B GB 201409048 A GB201409048 A GB 201409048A GB 2526330 B GB2526330 B GB 2526330B
Authority
GB
United Kingdom
Prior art keywords
display
synchronizing
video data
display devices
devices
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.)
Active
Application number
GB1409048.4A
Other versions
GB2526330A (en
GB201409048D0 (en
Inventor
Guignard Romain
Viger Pascal
Baron Stéphane
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to GB1409048.4A priority Critical patent/GB2526330B/en
Publication of GB201409048D0 publication Critical patent/GB201409048D0/en
Publication of GB2526330A publication Critical patent/GB2526330A/en
Application granted granted Critical
Publication of GB2526330B publication Critical patent/GB2526330B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/20Analysis of motion
    • G06T7/246Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/4104Peripherals receiving signals from specially adapted client devices
    • H04N21/4122Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/4302Content synchronisation processes, e.g. decoder synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/44Processing 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
    • H04N21/44008Processing 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/485End-user interface for client configuration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85Assembly of content; Generation of multimedia applications
    • H04N21/854Content authoring
    • H04N21/8547Content authoring involving timestamps for synchronizing content
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/04Synchronising
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/24Systems for the transmission of television signals using pulse code modulation
    • H04N7/52Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H04N7/54Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal the signals being synchronous
    • H04N7/56Synchronising systems therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
GB1409048.4A 2014-05-21 2014-05-21 Method and apparatus for synchronizing the display of video data on two display devices Active GB2526330B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1409048.4A GB2526330B (en) 2014-05-21 2014-05-21 Method and apparatus for synchronizing the display of video data on two display devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1409048.4A GB2526330B (en) 2014-05-21 2014-05-21 Method and apparatus for synchronizing the display of video data on two display devices

Publications (3)

Publication Number Publication Date
GB201409048D0 GB201409048D0 (en) 2014-07-02
GB2526330A GB2526330A (en) 2015-11-25
GB2526330B true GB2526330B (en) 2017-01-04

Family

ID=51135233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1409048.4A Active GB2526330B (en) 2014-05-21 2014-05-21 Method and apparatus for synchronizing the display of video data on two display devices

Country Status (1)

Country Link
GB (1) GB2526330B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109462772A (en) * 2018-10-31 2019-03-12 北京金山云网络技术有限公司 A kind of multimedia data playing method, apparatus and system
GB2602474A (en) * 2020-12-31 2022-07-06 Darabase Ltd Audio synchronisation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237203A (en) * 2013-04-09 2013-08-07 广东欧珀移动通信有限公司 Audio and video synchronizing method and audio and video synchronizing system based on based on mobile terminal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237203A (en) * 2013-04-09 2013-08-07 广东欧珀移动通信有限公司 Audio and video synchronizing method and audio and video synchronizing system based on based on mobile terminal

Also Published As

Publication number Publication date
GB2526330A (en) 2015-11-25
GB201409048D0 (en) 2014-07-02

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