CA2436836A1 - A unified distributed architecture for a multi-point video conference and interactive broadcast systems - Google Patents

A unified distributed architecture for a multi-point video conference and interactive broadcast systems Download PDF

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Publication number
CA2436836A1
CA2436836A1 CA002436836A CA2436836A CA2436836A1 CA 2436836 A1 CA2436836 A1 CA 2436836A1 CA 002436836 A CA002436836 A CA 002436836A CA 2436836 A CA2436836 A CA 2436836A CA 2436836 A1 CA2436836 A1 CA 2436836A1
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CA
Canada
Prior art keywords
session
client machines
signals
server
reflectors
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.)
Granted
Application number
CA002436836A
Other languages
French (fr)
Other versions
CA2436836C (en
Inventor
Wilson Tam
Leonid Kasperovich
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.)
Imajet Communications Inc
Original Assignee
Imajet Communications Inc.
Wilson Tam
Leonid Kasperovich
Imajet.Com 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 Imajet Communications Inc., Wilson Tam, Leonid Kasperovich, Imajet.Com Inc. filed Critical Imajet Communications Inc.
Publication of CA2436836A1 publication Critical patent/CA2436836A1/en
Application granted granted Critical
Publication of CA2436836C publication Critical patent/CA2436836C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Abstract

A unified architecture for a multipoint VC session and interactive broadcasting system is provided that includes a server, one or more video accessing points, reflectors and client machines. The server sets up the video communication sessions (VC sessions), each of which is hosted by one video accessing point. The server downloads the A/V client software to client machines. Reflectors direct audio/visual signals to client machines. The reflectors are coupled to the video accessing point and receive a control signal from the video accessing point in order to direct the A/V signals from the client machines participating in the VC session. The client machines process all of the A/V signals. This system for distributing the VC session tasks across these components reduces any bottleneck effect from using a single, central control point to direct the VC session and route the A/V
signals. The server, also, serves as a ticket agent, and is configured to issue and redeem tickets for specific VC sessions and broadcasts through the use of a session booking module. Finally, the downloading process of the A/V
client software prevents software incompatibility among participants and enables low storage devices such as handheld devices to participate.
CA002436836A 2000-11-30 2001-11-28 A unified distributed architecture for a multi-point video conference and interactive broadcast systems Expired - Lifetime CA2436836C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/726,286 US7158534B2 (en) 2000-11-30 2000-11-30 Unified distributed architecture for a multi-point video conference and interactive broadcast systems
US09/726,286 2000-11-30
PCT/SG2001/000240 WO2002045427A1 (en) 2000-11-30 2001-11-28 A unified distributed architecture for a multi-point video conference and interactive broadcast systems

Publications (2)

Publication Number Publication Date
CA2436836A1 true CA2436836A1 (en) 2002-06-06
CA2436836C CA2436836C (en) 2009-09-08

Family

ID=24917966

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002436836A Expired - Lifetime CA2436836C (en) 2000-11-30 2001-11-28 A unified distributed architecture for a multi-point video conference and interactive broadcast systems

Country Status (9)

Country Link
US (2) US7158534B2 (en)
EP (2) EP1338143B1 (en)
JP (2) JP4093860B2 (en)
KR (1) KR100573209B1 (en)
CN (2) CN100420301C (en)
AU (1) AU2002221256A1 (en)
CA (1) CA2436836C (en)
DE (1) DE60122569T2 (en)
WO (1) WO2002045427A1 (en)

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Also Published As

Publication number Publication date
JP4286267B2 (en) 2009-06-24
US7158534B2 (en) 2007-01-02
EP1737235B1 (en) 2015-03-04
DE60122569T2 (en) 2007-09-13
EP1338143B1 (en) 2006-08-23
US20020066109A1 (en) 2002-05-30
EP1737235A3 (en) 2012-03-21
WO2002045427A1 (en) 2002-06-06
KR100573209B1 (en) 2006-04-24
DE60122569D1 (en) 2006-10-05
CN1717040A (en) 2006-01-04
AU2002221256A1 (en) 2002-06-11
JP4093860B2 (en) 2008-06-04
JP2004515173A (en) 2004-05-20
US20070165669A1 (en) 2007-07-19
EP1338143A1 (en) 2003-08-27
CN1488222A (en) 2004-04-07
US7751434B2 (en) 2010-07-06
CA2436836C (en) 2009-09-08
KR20030076581A (en) 2003-09-26
JP2006216078A (en) 2006-08-17
CN1215716C (en) 2005-08-17
EP1737235A2 (en) 2006-12-27
CN100420301C (en) 2008-09-17

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Effective date: 20211129