JPH0573094B2 - - Google Patents

Info

Publication number
JPH0573094B2
JPH0573094B2 JP59170093A JP17009384A JPH0573094B2 JP H0573094 B2 JPH0573094 B2 JP H0573094B2 JP 59170093 A JP59170093 A JP 59170093A JP 17009384 A JP17009384 A JP 17009384A JP H0573094 B2 JPH0573094 B2 JP H0573094B2
Authority
JP
Japan
Prior art keywords
participant
conference
codewords
weighted
numerical range
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 - Lifetime
Application number
JP59170093A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6074861A (ja
Inventor
Bari Peetaa
Hofuman Rudorufu
Herubitsuku Karuru
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics 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 Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of JPS6074861A publication Critical patent/JPS6074861A/ja
Publication of JPH0573094B2 publication Critical patent/JPH0573094B2/ja
Granted 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
    • H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
JP59170093A 1983-08-18 1984-08-16 会議接続方法及び回路 Granted JPS6074861A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3329779A DE3329779C2 (de) 1983-08-18 1983-08-18 Verfahren und Schaltungsanordnung zur Herstellung von Konferenzverbindungen in einem Vermittlungssystem
DE3329779.7 1983-08-18

Publications (2)

Publication Number Publication Date
JPS6074861A JPS6074861A (ja) 1985-04-27
JPH0573094B2 true JPH0573094B2 (en, 2012) 1993-10-13

Family

ID=6206814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59170093A Granted JPS6074861A (ja) 1983-08-18 1984-08-16 会議接続方法及び回路

Country Status (4)

Country Link
US (1) US4607362A (en, 2012)
EP (1) EP0135229B1 (en, 2012)
JP (1) JPS6074861A (en, 2012)
DE (2) DE3329779C2 (en, 2012)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148263A (ja) * 1984-01-12 1985-08-05 Nippon Telegr & Teleph Corp <Ntt> 会議電話方式
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
DE3626862A1 (de) * 1986-08-08 1988-02-11 Philips Patentverwaltung Mehrstufige sender- antennenkoppeleinrichtung
US4825433A (en) * 1986-12-08 1989-04-25 Dsc Communications Corporation Digital bridge for a time slot interchange digital switched matrix
US4845499A (en) * 1987-11-02 1989-07-04 Ag Communication Systems Corporation Method for generating PCM logarithmic values from linear values
DE3817228A1 (de) * 1988-05-20 1989-11-23 Philips Patentverwaltung Konferenzbruecke
DE4017027A1 (de) * 1990-05-26 1991-11-28 Philips Patentverwaltung Vermittlungssystem mit einer konferenzeinrichtung
DE4126814A1 (de) * 1991-08-09 1993-02-11 Deutsche Telephonwerk Kabel Schaltungsanordnung fuer eine konferenzeinrichtung
JPH0698031A (ja) * 1992-09-14 1994-04-08 Fujitsu Ltd ディジタル会議トランクシステム
IT1271297B (it) * 1994-12-20 1997-05-27 Alcatel Italia Metodo e disposizione circuitale per permettere conversazioni telefoniche tra piu' utenti
FR2870064A1 (fr) * 2004-05-07 2005-11-11 France Telecom Mesure de performance dans un reseau de transmission de paquets

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US31814A (en) * 1861-03-26 Improvement in the preparation of fiber for the manufacture of paper
US3604855A (en) * 1970-01-02 1971-09-14 Stromberg Carlson Corp Digital conference circuit for pcm signalling system
US4054755A (en) * 1976-10-14 1977-10-18 Gte Automatic Electric Laboratories Incorporated Conference circuit for pulse coded modulated telephony
US4054757A (en) * 1976-12-13 1977-10-18 International Standard Electric Corporation Conference circuit using PCM techniques
US4126766A (en) * 1977-12-05 1978-11-21 Gte Automatic Electric Laboratories Incorporated 3-Port conference circuit for use in private automatic branch exchange
JPS55151849A (en) * 1979-05-17 1980-11-26 Fujitsu Ltd Digital conference telephone system
USRE31814E (en) 1979-07-02 1985-01-22 Motorola, Inc. Three-party conference circuit for digital time-division-multiplex communication systems
US4254497A (en) * 1979-08-06 1981-03-03 Gte Automatic Electric Laboratories, Inc. Multiport conference circuit with voice level coding
US4274155A (en) * 1979-08-06 1981-06-16 Gte Automatic Electric Laboratories Inc. Multiport conference circuit with multi-frame summing and voice level coding
JPS5652960A (en) * 1979-10-08 1981-05-12 Fujitsu Ltd Digital conference telephone connection system
US4316059A (en) * 1980-06-10 1982-02-16 Northern Telecom Limited Gain controller for a teleconferencing bridge
US4388717A (en) * 1981-01-14 1983-06-14 International Telephone And Telegraph Corporation Conference circuit for PCM system
US4387457A (en) * 1981-06-12 1983-06-07 Northern Telecom Limited Digital conference circuit and method
DE3148886C1 (de) * 1981-12-10 1983-08-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren und Schaltungsanordnung zum Herstellen einer Konferenzverbindung
US4499578A (en) * 1982-05-27 1985-02-12 At&T Bell Laboratories Method and apparatus for controlling signal level in a digital conference arrangement
US4482998A (en) * 1982-05-27 1984-11-13 At&T Bell Laboratories Method and apparatus for improving the quality of communication in a digital conference arrangement

Also Published As

Publication number Publication date
EP0135229A2 (de) 1985-03-27
DE3483633D1 (de) 1991-01-03
US4607362A (en) 1986-08-19
DE3329779C2 (de) 1985-06-27
JPS6074861A (ja) 1985-04-27
EP0135229B1 (de) 1990-11-22
DE3329779A1 (de) 1985-03-07
EP0135229A3 (en) 1986-12-03

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