WO2003058403A3 - Method and apparatus for wideband conferencing - Google Patents

Method and apparatus for wideband conferencing Download PDF

Info

Publication number
WO2003058403A3
WO2003058403A3 PCT/US2002/041778 US0241778W WO03058403A3 WO 2003058403 A3 WO2003058403 A3 WO 2003058403A3 US 0241778 W US0241778 W US 0241778W WO 03058403 A3 WO03058403 A3 WO 03058403A3
Authority
WO
WIPO (PCT)
Prior art keywords
wideband
communications devices
line conditions
audio
connection
Prior art date
Application number
PCT/US2002/041778
Other languages
French (fr)
Other versions
WO2003058403A2 (en
Inventor
Jeffrey Rodman
David Drell
Original Assignee
Polycom 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 Polycom Inc filed Critical Polycom Inc
Priority to EP02806278A priority Critical patent/EP1464142A4/en
Publication of WO2003058403A2 publication Critical patent/WO2003058403A2/en
Publication of WO2003058403A3 publication Critical patent/WO2003058403A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0024—Services and arrangements where telephone services are combined with data services
    • H04M7/0057—Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42127—Systems providing several special services or facilities from groups H04M3/42008 - H04M3/58
    • 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
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal

Abstract

A method and apparatus (Fig. 3A) for wideband voice and optional data conferencing over a telecommunications network channel between at least two wideband communications devices (PC 302, 322 and Video Display 330, 304). An exemplary method comprises establishing an audio link, verifying wideband capability between the at least two wideband communications devices, training modems of the at least two wideband communications device to line conditions, and adjusting the telecommunications connection line conditions between the communications devices. Once a wideband connection has been established, audio and data may be simultaneously exchanged.
PCT/US2002/041778 2001-12-31 2002-12-31 Method and apparatus for wideband conferencing WO2003058403A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02806278A EP1464142A4 (en) 2001-12-31 2002-12-31 Method and apparatus for wideband conferencing

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34592901P 2001-12-31 2001-12-31
US60/345,929 2001-12-31
US36098402P 2002-03-01 2002-03-01
US60/360,984 2002-03-01

Publications (2)

Publication Number Publication Date
WO2003058403A2 WO2003058403A2 (en) 2003-07-17
WO2003058403A3 true WO2003058403A3 (en) 2003-09-04

Family

ID=26994610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/041778 WO2003058403A2 (en) 2001-12-31 2002-12-31 Method and apparatus for wideband conferencing

Country Status (2)

Country Link
EP (1) EP1464142A4 (en)
WO (1) WO2003058403A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060034299A1 (en) * 2003-11-03 2006-02-16 Farhad Barzegar Systems, methods, and devices for processing audio signals
JP4349100B2 (en) 2003-11-21 2009-10-21 沖電気工業株式会社 Voice communication system and management server

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573377A (en) * 1969-02-24 1971-04-06 Bell Telephone Labor Inc Equipment to coordinate establishment of audio and video connections through switching systems
US3612767A (en) * 1969-06-11 1971-10-12 Bell Telephone Labor Inc Equipment for selectively establishing audio and wideband communication paths through two autonomous switching systems
US3649761A (en) * 1970-01-23 1972-03-14 Bell Telephone Labor Inc Dial selective wideband intercommunication system
US4257119A (en) * 1978-12-29 1981-03-17 Wescom Switching, Inc. PCM switching system for wide and narrow band signals
US4763317A (en) * 1985-12-13 1988-08-09 American Telephone And Telegraph Company, At&T Bell Laboratories Digital communication network architecture for providing universal information services
US5677728A (en) * 1982-02-24 1997-10-14 Schoolman Scientific Corporation Stereoscopic video telecommunication system
US6130880A (en) * 1998-03-20 2000-10-10 3Com Corporation Method and apparatus for adaptive prioritization of multiple information types in highly congested communication devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2126927C (en) * 1994-02-24 1999-01-26 Sidhartha Maitra Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573377A (en) * 1969-02-24 1971-04-06 Bell Telephone Labor Inc Equipment to coordinate establishment of audio and video connections through switching systems
US3612767A (en) * 1969-06-11 1971-10-12 Bell Telephone Labor Inc Equipment for selectively establishing audio and wideband communication paths through two autonomous switching systems
US3649761A (en) * 1970-01-23 1972-03-14 Bell Telephone Labor Inc Dial selective wideband intercommunication system
US4257119A (en) * 1978-12-29 1981-03-17 Wescom Switching, Inc. PCM switching system for wide and narrow band signals
US5677728A (en) * 1982-02-24 1997-10-14 Schoolman Scientific Corporation Stereoscopic video telecommunication system
US4763317A (en) * 1985-12-13 1988-08-09 American Telephone And Telegraph Company, At&T Bell Laboratories Digital communication network architecture for providing universal information services
US6130880A (en) * 1998-03-20 2000-10-10 3Com Corporation Method and apparatus for adaptive prioritization of multiple information types in highly congested communication devices

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
HAOJUN ET AL.: "Implementing an audio multipoint processor on DSP array", IEEE, May 2001 (2001-05-01), pages 441 - 444, XP010544757 *
JUNG ET AL.: "The multimedia desktop conference system adaptability in network traffic on LAN", IEEE, 1995, pages 334 - 338, XP002106182 *
NOORE ET AL.: "Computer-based multimedia video conference system", IEEE, 1993, pages 587 - 591, XP000396336 *
SASSE ET AL.: "Workstation-based multimedia conferencing: experiences from the MICE project", IEE, 1994, pages 1 - 6, XP002965553 *
See also references of EP1464142A4 *

Also Published As

Publication number Publication date
EP1464142A4 (en) 2005-04-27
EP1464142A2 (en) 2004-10-06
WO2003058403A2 (en) 2003-07-17

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