IT8224552A0 - Metodo e disposizione circuitale per realizzare una comunicazione in conferenza in un sistema di commutazione telefonica digitale. - Google Patents

Metodo e disposizione circuitale per realizzare una comunicazione in conferenza in un sistema di commutazione telefonica digitale.

Info

Publication number
IT8224552A0
IT8224552A0 IT8224552A IT2455282A IT8224552A0 IT 8224552 A0 IT8224552 A0 IT 8224552A0 IT 8224552 A IT8224552 A IT 8224552A IT 2455282 A IT2455282 A IT 2455282A IT 8224552 A0 IT8224552 A0 IT 8224552A0
Authority
IT
Italy
Prior art keywords
circuit arrangement
switching system
telephone switching
digital telephone
conference communication
Prior art date
Application number
IT8224552A
Other languages
English (en)
Other versions
IT1154391B (it
IT8224552A1 (it
Inventor
Joachim Eschmann
Jurgen Zanzig
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of IT8224552A0 publication Critical patent/IT8224552A0/it
Publication of IT8224552A1 publication Critical patent/IT8224552A1/it
Application granted granted Critical
Publication of IT1154391B publication Critical patent/IT1154391B/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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Gyroscopes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Control Of El Displays (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)
IT24552/82A 1981-12-10 1982-12-02 Metodo e disposizione circuitale per realizzare una comunicazione in conferenza in un sistema di commutazione telfonica digitale IT1154391B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3148886A DE3148886C1 (de) 1981-12-10 1981-12-10 Verfahren und Schaltungsanordnung zum Herstellen einer Konferenzverbindung

Publications (3)

Publication Number Publication Date
IT8224552A0 true IT8224552A0 (it) 1982-12-02
IT8224552A1 IT8224552A1 (it) 1984-06-02
IT1154391B IT1154391B (it) 1987-01-21

Family

ID=6148353

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24552/82A IT1154391B (it) 1981-12-10 1982-12-02 Metodo e disposizione circuitale per realizzare una comunicazione in conferenza in un sistema di commutazione telfonica digitale

Country Status (29)

Country Link
US (1) US4488291A (it)
EP (1) EP0081799B1 (it)
JP (1) JPS58150357A (it)
KR (1) KR880002168B1 (it)
AT (1) ATE34058T1 (it)
AU (1) AU553691B2 (it)
BE (1) BE895315A (it)
BR (1) BR8207094A (it)
CA (1) CA1206237A (it)
DD (1) DD209555A5 (it)
DE (2) DE3148886C1 (it)
ES (1) ES8308667A1 (it)
FI (1) FI824200A7 (it)
GR (1) GR77104B (it)
HK (1) HK67990A (it)
HU (1) HU184592B (it)
IN (1) IN157468B (it)
IT (1) IT1154391B (it)
MX (1) MX151911A (it)
NO (1) NO157839C (it)
NZ (1) NZ202626A (it)
PH (1) PH20311A (it)
PL (1) PL141213B1 (it)
RO (1) RO84971A (it)
SG (1) SG2889G (it)
SU (1) SU1210677A3 (it)
TR (1) TR21922A (it)
YU (1) YU43810B (it)
ZA (1) ZA828846B (it)

Families Citing this family (15)

* 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
JPS60148263A (ja) * 1984-01-12 1985-08-05 Nippon Telegr & Teleph Corp <Ntt> 会議電話方式
JPS60204158A (ja) * 1984-03-29 1985-10-15 Nippon Telegr & Teleph Corp <Ntt> 会議電話方式
DE3427303A1 (de) * 1984-07-20 1986-01-30 Siemens AG, 1000 Berlin und 8000 München Konferenzschaltung fuer digitale kommunikationssysteme
US4606021A (en) * 1984-08-17 1986-08-12 Itt Corporation Digital conference circuit
JPS6190565A (ja) * 1984-10-11 1986-05-08 Iwatsu Electric Co Ltd 会議通話方式
US4658398A (en) * 1984-10-29 1987-04-14 Gte Laboratories Incorporated Framed digital voice summing for teleconferencing
US4648089A (en) * 1984-10-29 1987-03-03 Gte Laboratories, Inc. Digital voice summing for teleconferencing
US4686512A (en) * 1985-03-01 1987-08-11 Kabushiki Kaisha Toshiba Integrated digital circuit for processing speech signal
US4716585A (en) * 1985-04-05 1987-12-29 Datapoint Corporation Gain switched audio conferencing network
WO1996004744A1 (en) * 1994-08-04 1996-02-15 National Semiconductor Corporation System and method for conducting conference calls in a communication system utilizing voice compression
US5483588A (en) * 1994-12-23 1996-01-09 Latitute Communications Voice processing interface for a teleconference system
JP2007096555A (ja) * 2005-09-28 2007-04-12 Nec Corp 音声会議システム、端末装置及びそれに用いる話者優先レベル制御方法並びにそのプログラム
US20070266092A1 (en) * 2006-05-10 2007-11-15 Schweitzer Edmund O Iii Conferencing system with automatic identification of speaker
CN102598644B (zh) * 2009-11-06 2015-05-27 飞思卡尔半导体公司 会议电话系统以及方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1301905A (it) * 1970-06-04 1973-01-04
US3883697A (en) * 1973-10-18 1975-05-13 Itt Digital conference circuit
US3937898A (en) * 1974-07-18 1976-02-10 International Telephone And Telegraph Corporation Digital conference bridge
DE2445094C3 (de) * 1974-09-20 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Herstellung von Konferenzverbindungen in einer PCM-Zeitmultiplex-Fernsprechvermittlungsanlage
US3984643A (en) * 1975-04-24 1976-10-05 Northern Electric Company Limited Method and apparatus for establishing a plurality of simultaneous conferences in a PCM switching system
FR2332663A1 (fr) * 1975-11-20 1977-06-17 Labo Cent Telecommunicat Circuit de conference pour reseau de commutation mic
US4076966A (en) * 1976-08-02 1978-02-28 Societa Italiana Telecomunicazioni Siemens S.P.A. Method of and system for handling conference calls in digital telephone exchange
US4054757A (en) * 1976-12-13 1977-10-18 International Standard Electric Corporation Conference circuit using PCM techniques
US4109111A (en) * 1977-08-23 1978-08-22 Digital Switch Corporation Method and apparatus for establishing conference calls in a time division multiplex pulse code modulation switching system
US4153817A (en) * 1977-11-25 1979-05-08 Stromberg-Carlson Corporation Digital conference circuit
US4190742A (en) * 1978-06-05 1980-02-26 Siemens Aktiengesellschaft Process and apparatus for producing conference connections in a PCM time multiplex switching system
US4267593A (en) * 1979-06-15 1981-05-12 Wescom Switching, Inc. Method and means for digital conferencing
JPS56157164A (en) * 1980-05-07 1981-12-04 Nec Corp Conference system
US4387457A (en) * 1981-06-12 1983-06-07 Northern Telecom Limited Digital conference circuit and method

Also Published As

Publication number Publication date
NO157839B (no) 1988-02-15
IT1154391B (it) 1987-01-21
ES518084A0 (es) 1983-09-01
DD209555A5 (de) 1984-05-09
KR840003170A (ko) 1984-08-13
PH20311A (en) 1986-11-25
DE3148886C1 (de) 1983-08-11
IN157468B (it) 1986-04-05
HU184592B (en) 1984-09-28
FI824200A0 (fi) 1982-12-07
ATE34058T1 (de) 1988-05-15
MX151911A (es) 1985-05-02
AU9113182A (en) 1983-06-16
DE3278453D1 (en) 1988-06-09
KR880002168B1 (ko) 1988-10-17
PL239455A1 (en) 1983-08-15
FI824200L (fi) 1983-06-11
JPS58150357A (ja) 1983-09-07
HK67990A (en) 1990-09-07
US4488291A (en) 1984-12-11
ES8308667A1 (es) 1983-09-01
BE895315A (fr) 1983-06-10
JPH0129345B2 (it) 1989-06-09
SU1210677A3 (ru) 1986-02-07
GR77104B (it) 1984-09-06
IT8224552A1 (it) 1984-06-02
YU43810B (en) 1989-12-31
YU272882A (en) 1985-10-31
NZ202626A (en) 1985-07-31
CA1206237A (en) 1986-06-17
TR21922A (tr) 1985-11-07
ZA828846B (en) 1983-09-28
PL141213B1 (en) 1987-07-31
RO84971A (ro) 1986-07-30
NO824084L (no) 1983-06-13
EP0081799B1 (de) 1988-05-04
EP0081799A1 (de) 1983-06-22
BR8207094A (pt) 1983-10-11
FI824200A7 (fi) 1983-06-11
NO157839C (no) 1988-05-25
AU553691B2 (en) 1986-07-24
SG2889G (en) 1989-11-17

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Legal Events

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

Effective date: 19971128