CA2220752A1 - Video conferencing system and method - Google Patents

Video conferencing system and method

Info

Publication number
CA2220752A1
CA2220752A1 CA002220752A CA2220752A CA2220752A1 CA 2220752 A1 CA2220752 A1 CA 2220752A1 CA 002220752 A CA002220752 A CA 002220752A CA 2220752 A CA2220752 A CA 2220752A CA 2220752 A1 CA2220752 A1 CA 2220752A1
Authority
CA
Canada
Prior art keywords
video
site
channel
broadcast frequency
controller
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
CA002220752A
Other languages
French (fr)
Other versions
CA2220752C (en
Inventor
Gernot Michael Engel
Andrew D. Poole
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.)
Linkabit Wireless Inc
Original Assignee
Titan Information Systems Corporation
Gernot Michael Engel
Andrew D. Poole
Linkabit Wireless, 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 Titan Information Systems Corporation, Gernot Michael Engel, Andrew D. Poole, Linkabit Wireless, Inc. filed Critical Titan Information Systems Corporation
Publication of CA2220752A1 publication Critical patent/CA2220752A1/en
Application granted granted Critical
Publication of CA2220752C publication Critical patent/CA2220752C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • 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

Video conferencing system including stations at a plurality of different sites, and in which system first and second video channels are simultaneously displayed at each site station on a picture-in-picture video monitor (24), a site controller (28) causes a video decoder (14) at the site to decode either a video signal generated at the site or a video signal received from another site via the first video channel. The site controller (28) also responds to a channel assignment signal generated by a system controller by assigning the first video channel to either a first predetermined broadcast frequency or to a second predetermined broadcast frequency and by assigning a second video channel carrying a video signal received from another site to the other available broadcast frequency. The system controller processes channel allocation requests signals with a predetermined priority from the different sites to generate the channel assignment signals.
CA002220752A 1995-05-24 1996-05-15 Video conferencing system and method Expired - Fee Related CA2220752C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/449,727 US5615338A (en) 1995-05-24 1995-05-24 System for simultaneously displaying video signal from second video channel and video signal generated at that site or video signal received from first channel
US08/449,727 1995-05-24
PCT/US1996/007021 WO1996037997A1 (en) 1995-05-24 1996-05-15 Video conferencing system and method

Publications (2)

Publication Number Publication Date
CA2220752A1 true CA2220752A1 (en) 1996-11-28
CA2220752C CA2220752C (en) 2002-04-30

Family

ID=23785256

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220752A Expired - Fee Related CA2220752C (en) 1995-05-24 1996-05-15 Video conferencing system and method

Country Status (10)

Country Link
US (1) US5615338A (en)
EP (1) EP0829164B1 (en)
JP (1) JPH11505984A (en)
KR (1) KR100386900B1 (en)
CN (1) CN1103160C (en)
AU (1) AU694036B2 (en)
CA (1) CA2220752C (en)
DE (1) DE69617230T2 (en)
HK (1) HK1016789A1 (en)
WO (1) WO1996037997A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5827071A (en) * 1996-08-26 1998-10-27 Sorensen; Steven Michael Method, computer program product, and system for teaching or reinforcing information without requiring user initiation of a learning sequence
DE19711638A1 (en) * 1997-03-20 1998-09-24 Deutsche Telekom Ag Video conferencing method
US6128649A (en) * 1997-06-02 2000-10-03 Nortel Networks Limited Dynamic selection of media streams for display
US6429903B1 (en) 1997-09-03 2002-08-06 Colorgraphic Communications Corporation Video adapter for supporting at least one television monitor
US6028643A (en) * 1997-09-03 2000-02-22 Colorgraphic Communications Corporation Multiple-screen video adapter with television tuner
US6133912A (en) * 1998-05-04 2000-10-17 Montero; Frank J. Method of delivering information over a communication network
US20080034113A1 (en) 1998-05-04 2008-02-07 Frank Montero Method of contextually determining missing components of an incomplete uniform resource locator
US6433813B1 (en) * 1998-12-28 2002-08-13 Ameritech Corporation Videoconferencing method and system for connecting a host with a plurality of participants
US6526580B2 (en) 1999-04-16 2003-02-25 Digeo, Inc. Broadband data broadcasting service
US6473858B1 (en) 1999-04-16 2002-10-29 Digeo, Inc. Method and apparatus for broadcasting data with access control
SE517988C2 (en) * 1999-07-06 2002-08-13 Telia Ab Video conferencing system to convey information
US7280492B2 (en) * 2000-02-22 2007-10-09 Ncast Corporation Videoconferencing system
US20020054205A1 (en) * 2000-02-22 2002-05-09 Magnuski Henry S. Videoconferencing terminal
US7051111B1 (en) 2000-04-25 2006-05-23 Digeo, Inc. Multiple source proxy management system
KR100470567B1 (en) * 2002-05-15 2005-02-22 주식회사 영전 Electrical transmission equipment for image data
CN100393037C (en) * 2003-11-10 2008-06-04 中兴通讯股份有限公司 Method for implementing multi-party conference service in communication network with separated bearing and controlling
JP4604877B2 (en) * 2005-06-24 2011-01-05 富士ゼロックス株式会社 Display image control program, image distribution apparatus, display image control apparatus, and display image control method
US9473751B2 (en) 2007-09-11 2016-10-18 The Directv Group, Inc. Method and system for operating a monitoring system for a satellite communication system
US9313457B2 (en) 2007-09-11 2016-04-12 The Directv Group, Inc. Method and system for monitoring a receiving circuit module and controlling switching to a back-up receiving circuit module at a local collection facility from a remote facility
US8973058B2 (en) 2007-09-11 2015-03-03 The Directv Group, Inc. Method and system for monitoring and simultaneously displaying a plurality of signal channels in a communication system
US9461758B2 (en) * 2007-09-11 2016-10-04 The Directv Group, Inc. Method and system for monitoring various signals in a continuous processing circuit for a single channel in a communication system
CN101217635A (en) * 2008-01-17 2008-07-09 中兴通讯股份有限公司 A combined methods of video conferencing and monitoring service, video conferencing terminal and MCU
CN102131090B (en) * 2010-11-22 2012-10-03 华为技术有限公司 Video file playing method and system and media resource server
TWI484827B (en) * 2011-11-02 2015-05-11 Quanta Comp Inc Video conference system, video conference terminal apparatus and image capturing method for video conferences
CN102625129A (en) * 2012-03-31 2012-08-01 福州一点通广告装饰有限公司 Method for realizing remote reality three-dimensional virtual imitated scene interaction
JP7230394B2 (en) * 2018-09-25 2023-03-01 京セラドキュメントソリューションズ株式会社 Teleconferencing device and teleconferencing program

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485953A (en) * 1966-12-06 1969-12-23 Control Data Corp Asynchronous time-sharing of multi-carrier channels
US4535448A (en) * 1982-12-10 1985-08-13 At&T Bell Laboratories Dual bus communication system
US4931872A (en) * 1986-11-24 1990-06-05 Gte Laboratories Incorporated Methods of and apparatus for the generation of split-screen video displays
DE3823219C1 (en) * 1988-07-08 1989-05-18 Telenorma Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt, De
US5382972A (en) * 1988-09-22 1995-01-17 Kannes; Deno Video conferencing system for courtroom and other applications
FR2641925B1 (en) * 1988-12-27 1994-06-17 Bull Sa MULTIPROTOCOL ISDN COMMUNICATIONS CONTROLLER
DE68915768T2 (en) * 1989-06-23 1994-09-15 Bell Telephone Mfg COMMUNICATION SYSTEM.
JP2605960B2 (en) * 1990-11-29 1997-04-30 松下電器産業株式会社 Video transmission equipment
JP3004105B2 (en) * 1991-11-15 2000-01-31 株式会社東芝 Television receiver
US5218432A (en) * 1992-01-02 1993-06-08 Tandy Corporation Method and apparatus for merging video data signals from multiple sources and multimedia system incorporating same

Also Published As

Publication number Publication date
AU5794796A (en) 1996-12-11
WO1996037997A1 (en) 1996-11-28
CN1191053A (en) 1998-08-19
HK1016789A1 (en) 1999-11-05
KR19990021902A (en) 1999-03-25
AU694036B2 (en) 1998-07-09
EP0829164A1 (en) 1998-03-18
KR100386900B1 (en) 2003-08-14
CN1103160C (en) 2003-03-12
US5615338A (en) 1997-03-25
DE69617230D1 (en) 2002-01-03
DE69617230T2 (en) 2002-07-25
EP0829164B1 (en) 2001-11-21
EP0829164A4 (en) 1999-05-19
JPH11505984A (en) 1999-05-25
CA2220752C (en) 2002-04-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed