GB2491874B - Video conferencing synchronisation systems - Google Patents

Video conferencing synchronisation systems

Info

Publication number
GB2491874B
GB2491874B GB1110122.7A GB201110122A GB2491874B GB 2491874 B GB2491874 B GB 2491874B GB 201110122 A GB201110122 A GB 201110122A GB 2491874 B GB2491874 B GB 2491874B
Authority
GB
United Kingdom
Prior art keywords
video conferencing
synchronisation systems
synchronisation
systems
conferencing
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.)
Expired - Fee Related
Application number
GB1110122.7A
Other versions
GB2491874A (en
GB201110122D0 (en
Inventor
John Gwilt David
Edward Nancekievill Alexander
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.)
Starleaf Ltd
Original Assignee
Starleaf 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 Starleaf Ltd filed Critical Starleaf Ltd
Priority to GB1110122.7A priority Critical patent/GB2491874B/en
Publication of GB201110122D0 publication Critical patent/GB201110122D0/en
Priority to PCT/GB2012/051262 priority patent/WO2012172310A2/en
Priority to US14/126,802 priority patent/US9225938B2/en
Publication of GB2491874A publication Critical patent/GB2491874A/en
Priority to US14/108,039 priority patent/US9088695B2/en
Application granted granted Critical
Publication of GB2491874B publication Critical patent/GB2491874B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1822—Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
GB1110122.7A 2011-06-16 2011-06-16 Video conferencing synchronisation systems Expired - Fee Related GB2491874B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1110122.7A GB2491874B (en) 2011-06-16 2011-06-16 Video conferencing synchronisation systems
PCT/GB2012/051262 WO2012172310A2 (en) 2011-06-16 2012-06-06 Video conferencing systems
US14/126,802 US9225938B2 (en) 2011-06-16 2012-06-06 Video conferencing systems
US14/108,039 US9088695B2 (en) 2011-06-16 2013-12-16 Video conferencing systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1110122.7A GB2491874B (en) 2011-06-16 2011-06-16 Video conferencing synchronisation systems

Publications (3)

Publication Number Publication Date
GB201110122D0 GB201110122D0 (en) 2011-07-27
GB2491874A GB2491874A (en) 2012-12-19
GB2491874B true GB2491874B (en) 2017-12-13

Family

ID=44357845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1110122.7A Expired - Fee Related GB2491874B (en) 2011-06-16 2011-06-16 Video conferencing synchronisation systems

Country Status (1)

Country Link
GB (1) GB2491874B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060291478A1 (en) * 2005-06-24 2006-12-28 Microsoft Corporation Audio/video synchronization using audio hashing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060291478A1 (en) * 2005-06-24 2006-12-28 Microsoft Corporation Audio/video synchronization using audio hashing

Also Published As

Publication number Publication date
GB2491874A (en) 2012-12-19
GB201110122D0 (en) 2011-07-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20150611 AND 20150617

S30Z Assignments for licence or security reasons

Free format text: APPLICANT: STARLEAF LTD CHARGOR: ( SECURITY AGREEMENT) SILICON VALLEY BANK

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230616