FR2271726A1 - Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions - Google Patents

Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions

Info

Publication number
FR2271726A1
FR2271726A1 FR7417174A FR7417174A FR2271726A1 FR 2271726 A1 FR2271726 A1 FR 2271726A1 FR 7417174 A FR7417174 A FR 7417174A FR 7417174 A FR7417174 A FR 7417174A FR 2271726 A1 FR2271726 A1 FR 2271726A1
Authority
FR
France
Prior art keywords
participant
speech
detector
conference system
transmissions
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.)
Granted
Application number
FR7417174A
Other languages
English (en)
French (fr)
Other versions
FR2271726B1 (enExample
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to FR7417174A priority Critical patent/FR2271726A1/fr
Priority to GB2007775A priority patent/GB1486868A/en
Priority to BR7503890A priority patent/BR7503049A/pt
Priority to BE2054349A priority patent/BE829158A/xx
Publication of FR2271726A1 publication Critical patent/FR2271726A1/fr
Application granted granted Critical
Publication of FR2271726B1 publication Critical patent/FR2271726B1/fr
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
    • H04M3/568—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
FR7417174A 1974-05-17 1974-05-17 Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions Granted FR2271726A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7417174A FR2271726A1 (en) 1974-05-17 1974-05-17 Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions
GB2007775A GB1486868A (en) 1974-05-17 1975-05-13 Conference circuit
BR7503890A BR7503049A (pt) 1974-05-17 1975-05-16 Metodo de conferencia telefonica
BE2054349A BE829158A (fr) 1974-05-17 1975-05-16 Systeme de conference et procede et dispositif de detection de la parole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417174A FR2271726A1 (en) 1974-05-17 1974-05-17 Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions

Publications (2)

Publication Number Publication Date
FR2271726A1 true FR2271726A1 (en) 1975-12-12
FR2271726B1 FR2271726B1 (enExample) 1977-10-14

Family

ID=9138987

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417174A Granted FR2271726A1 (en) 1974-05-17 1974-05-17 Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions

Country Status (3)

Country Link
BE (1) BE829158A (enExample)
BR (1) BR7503049A (enExample)
FR (1) FR2271726A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004182A3 (en) * 1978-03-07 1979-10-03 The Post Office Improvements in or relating to audio teleconferencing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004182A3 (en) * 1978-03-07 1979-10-03 The Post Office Improvements in or relating to audio teleconferencing

Also Published As

Publication number Publication date
BR7503049A (pt) 1976-04-13
BE829158A (fr) 1975-11-17
FR2271726B1 (enExample) 1977-10-14

Similar Documents

Publication Publication Date Title
US3751602A (en) Loudspeaking telephone
EP0366584B1 (en) Full-duplex digital speakerphone
GB1506333A (en) Telephone conference systems
FI91203C (fi) Menetelmä digitaalisen siirtojärjestelmän päätelaitteistolle tulevan puhelun käsittelemiseksi sekä radiopuhelin
US4700382A (en) Voice-switched telephone circuit with center idle state
US6798881B2 (en) Noise reduction circuit for telephones
GB916545A (en) Improvements in or relating to loud speaking telephone sets
US4081620A (en) Sidetone control circuit for a telephone set
FR2271725A1 (en) Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions
US3886314A (en) No hands voice instruction for EEG telemetering system
GB1367707A (en) Loudspeaking telephone
FR2271726A1 (en) Telephonic conference system with speech detector - enables speech from one participant to block all other transmissions
FR2345872A1 (fr) Installation pour la transmission simultanee par voie numerique de signaux visiophoniques et de signaux de donnees numeriques
CA2000026A1 (en) Dialing confirmation tone output apparatus
SE9200053L (sv) Radiotelefoner och markbundna telefoner foer handfrisamtal
US3363061A (en) Automatic equalization of noise levels in conference telephony
KR930017356A (ko) 두개의 송수화기를 갖는 무선 전화기 시스템
FR2312145A1 (fr) Circuit pour servir d'interface entre deux parties d'une voie de communication
JPS59216361A (ja) 会議通話トランク
JPS59117849A (ja) 電話機における防騒音回路
KR950002581B1 (ko) 스피커폰 회로를 키폰 주시스템에 내장하여 스피커폰의 기능을 수행하기 위한 방법 및 그 장치
JPS63272254A (ja) 電話装置
FR2359561A1 (fr) Dispositif pour la reception de signaux de signalisation a frequences vocales
AU1486799A (en) Method and device for suppressing echo in a hands free device such as a telephone
JPS62154839A (ja) 会議電話装置

Legal Events

Date Code Title Description
TP Transmission of property