CA1206237A - Method of and circuit arrangement for setting up a conference call - Google Patents

Method of and circuit arrangement for setting up a conference call

Info

Publication number
CA1206237A
CA1206237A CA000417379A CA417379A CA1206237A CA 1206237 A CA1206237 A CA 1206237A CA 000417379 A CA000417379 A CA 000417379A CA 417379 A CA417379 A CA 417379A CA 1206237 A CA1206237 A CA 1206237A
Authority
CA
Canada
Prior art keywords
speech samples
circuit arrangement
participants
participant
speech
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.)
Expired
Application number
CA000417379A
Other languages
English (en)
French (fr)
Inventor
Joachim Eschmann
Jurgen Zanzig
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.)
International Standard Electric Corp
Original Assignee
International 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of CA1206237A publication Critical patent/CA1206237A/en
Expired legal-status Critical Current

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Control Of El Displays (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Gyroscopes (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)
CA000417379A 1981-12-10 1982-12-09 Method of and circuit arrangement for setting up a conference call Expired CA1206237A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3148886A DE3148886C1 (de) 1981-12-10 1981-12-10 Verfahren und Schaltungsanordnung zum Herstellen einer Konferenzverbindung
DEP3148886.2 1981-12-10

Publications (1)

Publication Number Publication Date
CA1206237A true CA1206237A (en) 1986-06-17

Family

ID=6148353

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000417379A Expired CA1206237A (en) 1981-12-10 1982-12-09 Method of and circuit arrangement for setting up a conference call

Country Status (29)

Country Link
US (1) US4488291A (OSRAM)
EP (1) EP0081799B1 (OSRAM)
JP (1) JPS58150357A (OSRAM)
KR (1) KR880002168B1 (OSRAM)
AT (1) ATE34058T1 (OSRAM)
AU (1) AU553691B2 (OSRAM)
BE (1) BE895315A (OSRAM)
BR (1) BR8207094A (OSRAM)
CA (1) CA1206237A (OSRAM)
DD (1) DD209555A5 (OSRAM)
DE (2) DE3148886C1 (OSRAM)
ES (1) ES518084A0 (OSRAM)
FI (1) FI824200L (OSRAM)
GR (1) GR77104B (OSRAM)
HK (1) HK67990A (OSRAM)
HU (1) HU184592B (OSRAM)
IN (1) IN157468B (OSRAM)
IT (1) IT1154391B (OSRAM)
MX (1) MX151911A (OSRAM)
NO (1) NO157839C (OSRAM)
NZ (1) NZ202626A (OSRAM)
PH (1) PH20311A (OSRAM)
PL (1) PL141213B1 (OSRAM)
RO (1) RO84971A (OSRAM)
SG (1) SG2889G (OSRAM)
SU (1) SU1210677A3 (OSRAM)
TR (1) TR21922A (OSRAM)
YU (1) YU43810B (OSRAM)
ZA (1) ZA828846B (OSRAM)

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
US8619963B2 (en) * 2009-11-06 2013-12-31 Freescale Semiconductor, Inc. Conference call system, method, and computer program product

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1301905A (OSRAM) * 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
HK67990A (en) 1990-09-07
DD209555A5 (de) 1984-05-09
US4488291A (en) 1984-12-11
DE3148886C1 (de) 1983-08-11
JPS58150357A (ja) 1983-09-07
PH20311A (en) 1986-11-25
TR21922A (tr) 1985-11-07
ZA828846B (en) 1983-09-28
BR8207094A (pt) 1983-10-11
IT1154391B (it) 1987-01-21
NO157839B (no) 1988-02-15
YU272882A (en) 1985-10-31
DE3278453D1 (en) 1988-06-09
ES8308667A1 (es) 1983-09-01
PL239455A1 (en) 1983-08-15
NZ202626A (en) 1985-07-31
SU1210677A3 (ru) 1986-02-07
AU553691B2 (en) 1986-07-24
IN157468B (OSRAM) 1986-04-05
FI824200A7 (fi) 1983-06-11
IT8224552A0 (it) 1982-12-02
ES518084A0 (es) 1983-09-01
EP0081799B1 (de) 1988-05-04
YU43810B (en) 1989-12-31
BE895315A (fr) 1983-06-10
AU9113182A (en) 1983-06-16
JPH0129345B2 (OSRAM) 1989-06-09
NO824084L (no) 1983-06-13
RO84971A (ro) 1986-07-30
EP0081799A1 (de) 1983-06-22
HU184592B (en) 1984-09-28
ATE34058T1 (de) 1988-05-15
MX151911A (es) 1985-05-02
SG2889G (en) 1989-11-17
KR840003170A (ko) 1984-08-13
FI824200L (fi) 1983-06-11
PL141213B1 (en) 1987-07-31
NO157839C (no) 1988-05-25
KR880002168B1 (ko) 1988-10-17
FI824200A0 (fi) 1982-12-07
GR77104B (OSRAM) 1984-09-06
IT8224552A1 (it) 1984-06-02

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Legal Events

Date Code Title Description
MKEX Expiry