NO955019L - Telefon-konferanseanordning - Google Patents

Telefon-konferanseanordning

Info

Publication number
NO955019L
NO955019L NO955019A NO955019A NO955019L NO 955019 L NO955019 L NO 955019L NO 955019 A NO955019 A NO 955019A NO 955019 A NO955019 A NO 955019A NO 955019 L NO955019 L NO 955019L
Authority
NO
Norway
Prior art keywords
conferencing device
telephone conferencing
telephone
circuitry
utilizing
Prior art date
Application number
NO955019A
Other languages
English (en)
Other versions
NO955019D0 (no
Inventor
Antonio Rotunno
Original Assignee
Alcatel Nv
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 Alcatel Nv filed Critical Alcatel Nv
Publication of NO955019D0 publication Critical patent/NO955019D0/no
Publication of NO955019L publication Critical patent/NO955019L/no

Links

Classifications

    • 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
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm
    • 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
    • H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

Det er beskrevet en fremgangsmåte og en kretsanordning som muliggjør og forbedrer telefonsamtale blant flere brukere i digitale, svitsjede PCM-telefonsystemer ved utnyttelse av en multiplikasjonskoeffisient som er omvendt proporsjonal med nivået på hver linje.
NO955019A 1994-12-20 1995-12-12 Telefon-konferanseanordning NO955019L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI942564A IT1271297B (it) 1994-12-20 1994-12-20 Metodo e disposizione circuitale per permettere conversazioni telefoniche tra piu' utenti

Publications (2)

Publication Number Publication Date
NO955019D0 NO955019D0 (no) 1995-12-12
NO955019L true NO955019L (no) 1996-06-21

Family

ID=11370019

Family Applications (1)

Application Number Title Priority Date Filing Date
NO955019A NO955019L (no) 1994-12-20 1995-12-12 Telefon-konferanseanordning

Country Status (6)

Country Link
US (1) US5784447A (no)
EP (1) EP0719025A3 (no)
AU (1) AU703845B2 (no)
CA (1) CA2165608A1 (no)
IT (1) IT1271297B (no)
NO (1) NO955019L (no)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329779C2 (de) * 1983-08-18 1985-06-27 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Schaltungsanordnung zur Herstellung von Konferenzverbindungen in einem Vermittlungssystem
US4558180A (en) * 1983-10-25 1985-12-10 At&T Bell Laboratories Programmable audio mixer
US4606021A (en) * 1984-08-17 1986-08-12 Itt Corporation Digital conference circuit
US4686512A (en) * 1985-03-01 1987-08-11 Kabushiki Kaisha Toshiba Integrated digital circuit for processing speech signal
US5054021A (en) * 1990-03-06 1991-10-01 Confertech International, Inc. Circuit for nulling the talker's speech in a conference call and method thereof
US5457685A (en) * 1993-11-05 1995-10-10 The United States Of America As Represented By The Secretary Of The Air Force Multi-speaker conferencing over narrowband channels

Also Published As

Publication number Publication date
CA2165608A1 (en) 1996-06-21
ITMI942564A0 (it) 1994-12-20
NO955019D0 (no) 1995-12-12
ITMI942564A1 (it) 1996-06-20
AU4030195A (en) 1996-06-27
EP0719025A3 (en) 1999-01-07
EP0719025A2 (en) 1996-06-26
US5784447A (en) 1998-07-21
IT1271297B (it) 1997-05-27
AU703845B2 (en) 1999-04-01

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application