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ES8308667A1 - Un metodo y un circuito para establecer una llamada multiple en un sistema de conmutacion telefonica digital. - Google Patents

Un metodo y un circuito para establecer una llamada multiple en un sistema de conmutacion telefonica digital.

Info

Publication number
ES8308667A1
ES8308667A1 ES518084A ES518084A ES8308667A1 ES 8308667 A1 ES8308667 A1 ES 8308667A1 ES 518084 A ES518084 A ES 518084A ES 518084 A ES518084 A ES 518084A ES 8308667 A1 ES8308667 A1 ES 8308667A1
Authority
ES
Spain
Prior art keywords
speech samples
participants
circuit
conference
adder
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
ES518084A
Other languages
English (en)
Other versions
ES518084A0 (es
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Espana SA filed Critical Alcatel Espana SA
Publication of ES8308667A1 publication Critical patent/ES8308667A1/es
Publication of ES518084A0 publication Critical patent/ES518084A0/es
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
    • 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)
  • Gyroscopes (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Control Of El Displays (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

METODO Y CIRCUITO PARA ESTABLECER UNA LLAMADA MULTIPLE EN UN SISTEMA DE COMUNICACION TELEFONICA DIGITAL. EL CIRCUITO COMPRENDE UN PRIMER CONVERTIDOR DE CODIGO QUE CONVIERTE LAS MUESTRAS DE CONVERSACION, CODIFICADAS NO LINEALMENTE, QUE SE ORIGINAN EN LOS PARTICIPANTES INDIVIDUALES, EN VALORES CODIFICADOS LINEALMENTE; UN SUMADOR QUE SUMA LOS VALORES CONVERTIDOS; UN SEGUNDO CONVERTIDOR DE CODIGO QUE CONVIERTE LOS VALORES SUMA EN MUESTRAS DE CONVERSACION CODIFICADAS NO LINEALMENTE; Y UN CIRCUITO DE EVALUACION QUE COMPARA Y EVALUA LAS MUESTRAS DE CONVERSACION QUE LLEGAN A EL. DE APLICACION EN UN SISTEMA DE LLAMADAS MULTIPLES PARA REDUCIR LA DISTORSION DE LAS SEÑALES DE CONVERSACION A UN MINIMO.
ES518084A 1981-12-10 1982-12-10 Un metodo y un circuito para establecer una llamada multiple en un sistema de conmutacion telefonica digital. Granted ES518084A0 (es)

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 (2)

Publication Number Publication Date
ES8308667A1 true ES8308667A1 (es) 1983-09-01
ES518084A0 ES518084A0 (es) 1983-09-01

Family

ID=6148353

Family Applications (1)

Application Number Title Priority Date Filing Date
ES518084A Granted ES518084A0 (es) 1981-12-10 1982-12-10 Un metodo y un circuito para establecer una llamada multiple en un sistema de conmutacion telefonica digital.

Country Status (29)

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

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
KR960705440A (ko) * 1994-08-04 1996-10-09 존 엠. 클락 3세 음성 압축을 사용하는 통신 시스템에서의 회의 통화를 수행하는 시스템 및 방법(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 (es) * 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
AU9113182A (en) 1983-06-16
DE3148886C1 (de) 1983-08-11
FI824200A0 (fi) 1982-12-07
PL141213B1 (en) 1987-07-31
SU1210677A3 (ru) 1986-02-07
KR880002168B1 (ko) 1988-10-17
NO157839C (no) 1988-05-25
HK67990A (en) 1990-09-07
GR77104B (es) 1984-09-06
IT8224552A0 (it) 1982-12-02
TR21922A (tr) 1985-11-07
ES518084A0 (es) 1983-09-01
PL239455A1 (en) 1983-08-15
CA1206237A (en) 1986-06-17
NO824084L (no) 1983-06-13
BE895315A (fr) 1983-06-10
IN157468B (es) 1986-04-05
SG2889G (en) 1989-11-17
DD209555A5 (de) 1984-05-09
YU43810B (en) 1989-12-31
MX151911A (es) 1985-05-02
YU272882A (en) 1985-10-31
RO84971A (ro) 1986-07-30
BR8207094A (pt) 1983-10-11
DE3278453D1 (en) 1988-06-09
HU184592B (en) 1984-09-28
US4488291A (en) 1984-12-11
FI824200L (fi) 1983-06-11
NO157839B (no) 1988-02-15
ZA828846B (en) 1983-09-28
IT1154391B (it) 1987-01-21
IT8224552A1 (it) 1984-06-02
NZ202626A (en) 1985-07-31
JPH0129345B2 (es) 1989-06-09
ATE34058T1 (de) 1988-05-15
EP0081799A1 (de) 1983-06-22
EP0081799B1 (de) 1988-05-04
PH20311A (en) 1986-11-25
KR840003170A (ko) 1984-08-13
JPS58150357A (ja) 1983-09-07
AU553691B2 (en) 1986-07-24

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