IT1271297B - Metodo e disposizione circuitale per permettere conversazioni telefoniche tra piu' utenti - Google Patents

Metodo e disposizione circuitale per permettere conversazioni telefoniche tra piu' utenti

Info

Publication number
IT1271297B
IT1271297B ITMI942564A ITMI942564A IT1271297B IT 1271297 B IT1271297 B IT 1271297B IT MI942564 A ITMI942564 A IT MI942564A IT MI942564 A ITMI942564 A IT MI942564A IT 1271297 B IT1271297 B IT 1271297B
Authority
IT
Italy
Prior art keywords
multiple users
telephone conversations
allow telephone
circuit provision
provision
Prior art date
Application number
ITMI942564A
Other languages
English (en)
Inventor
Antonio Rotunno
Original Assignee
Alcatel Italia
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 Italia filed Critical Alcatel Italia
Priority to ITMI942564A priority Critical patent/IT1271297B/it
Publication of ITMI942564A0 publication Critical patent/ITMI942564A0/it
Priority to EP95119196A priority patent/EP0719025A3/en
Priority to AU40301/95A priority patent/AU703845B2/en
Priority to NO955019A priority patent/NO955019L/no
Priority to US08/574,376 priority patent/US5784447A/en
Priority to CA002165608A priority patent/CA2165608A1/en
Publication of ITMI942564A1 publication Critical patent/ITMI942564A1/it
Application granted granted Critical
Publication of IT1271297B publication Critical patent/IT1271297B/it

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)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Interface Circuits In Exchanges (AREA)
ITMI942564A 1994-12-20 1994-12-20 Metodo e disposizione circuitale per permettere conversazioni telefoniche tra piu' utenti IT1271297B (it)

Priority Applications (6)

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
EP95119196A EP0719025A3 (en) 1994-12-20 1995-12-06 Method and circuit arrangement for allowing telephone conversation among several users
AU40301/95A AU703845B2 (en) 1994-12-20 1995-12-11 Telephone conference arrangement
NO955019A NO955019L (no) 1994-12-20 1995-12-12 Telefon-konferanseanordning
US08/574,376 US5784447A (en) 1994-12-20 1995-12-18 Method and circuit arrangement for allowing telephone conversations among several users
CA002165608A CA2165608A1 (en) 1994-12-20 1995-12-19 Method and circuit arrangement for allowing telephone conversations among several users

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 (3)

Publication Number Publication Date
ITMI942564A0 ITMI942564A0 (it) 1994-12-20
ITMI942564A1 ITMI942564A1 (it) 1996-06-20
IT1271297B true IT1271297B (it) 1997-05-27

Family

ID=11370019

Family Applications (1)

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

Country Status (6)

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

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
US5784447A (en) 1998-07-21
AU4030195A (en) 1996-06-27
EP0719025A3 (en) 1999-01-07
AU703845B2 (en) 1999-04-01
ITMI942564A0 (it) 1994-12-20
CA2165608A1 (en) 1996-06-21
ITMI942564A1 (it) 1996-06-20
EP0719025A2 (en) 1996-06-26
NO955019D0 (no) 1995-12-12
NO955019L (no) 1996-06-21

Similar Documents

Publication Publication Date Title
DE69623479T2 (de) Fernmeldeanordnung und -verfahren
DE69526652T2 (de) Bereitstellung von Diensten in Kommunikationsnetzen
DE69428068D1 (de) Teilnehmerschnittstellenschaltung
NO980914L (no) Personlig kommunikasjonsterminal
DK0686329T3 (da) Hændelseskorrelation i telekommunikationsnetværk
DE59712797D1 (de) Telekommunikationseinrichtung
DE69516318T2 (de) Telephon
DE69535980D1 (de) Netzwerkendgerät
BR9608862A (pt) Telefone
DK0782813T3 (da) Terminaludstyr
FI971884A (fi) Tietoliikennemenetelmä ja -järjestely
DE69635699D1 (de) Nachrichtengebührenvorrichtung in Fernmeldnetzen
FI950776A0 (fi) Personligt telekommunikationssystem
DE69423130D1 (de) Telekommunikationsnetzwerk
DE69629627D1 (de) Fernmeldegerät
IT1271297B (it) Metodo e disposizione circuitale per permettere conversazioni telefoniche tra piu' utenti
DE69732475D1 (de) Fernsprechkonferenzverfahren
FI972201A0 (fi) Viestiliikenneverkko
FI973516A (fi) Telekommunikaatioon liittyvä verkkojärjestely ja -menetelmä
ES1028395Y (es) Teleportero mejorado
DE69519163T2 (de) Telekommunikationsnetzwerk
DE59607369D1 (de) Telekommunikationsendgerät
FI955902A (fi) Tietoliikennejärjestelmä sekä tietoliikennevaihde sekä menetelmä
KR950024055U (ko) 발신자의 음성을 실은 전보카드
KR960006552U (ko) 전화기의 통화녹음 연결회로

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971128