FR2377735A1 - Appareil telephonique pour salle de conferences - Google Patents

Appareil telephonique pour salle de conferences

Info

Publication number
FR2377735A1
FR2377735A1 FR7800105A FR7800105A FR2377735A1 FR 2377735 A1 FR2377735 A1 FR 2377735A1 FR 7800105 A FR7800105 A FR 7800105A FR 7800105 A FR7800105 A FR 7800105A FR 2377735 A1 FR2377735 A1 FR 2377735A1
Authority
FR
France
Prior art keywords
microphone
approximately
loudspeaker
conference rooms
telephone device
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
FR7800105A
Other languages
English (en)
French (fr)
Other versions
FR2377735B3 (enrdf_load_stackoverflow
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of FR2377735A1 publication Critical patent/FR2377735A1/fr
Application granted granted Critical
Publication of FR2377735B3 publication Critical patent/FR2377735B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Catalysts (AREA)
FR7800105A 1977-01-14 1978-01-04 Appareil telephonique pour salle de conferences Granted FR2377735A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA269,735A CA1050154A (en) 1977-01-14 1977-01-14 Telephone conferencing apparatus

Publications (2)

Publication Number Publication Date
FR2377735A1 true FR2377735A1 (fr) 1978-08-11
FR2377735B3 FR2377735B3 (enrdf_load_stackoverflow) 1980-10-24

Family

ID=4107730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800105A Granted FR2377735A1 (fr) 1977-01-14 1978-01-04 Appareil telephonique pour salle de conferences

Country Status (12)

Country Link
JP (1) JPS5389606A (enrdf_load_stackoverflow)
BE (1) BE862702A (enrdf_load_stackoverflow)
CA (1) CA1050154A (enrdf_load_stackoverflow)
DE (1) DE2800882C2 (enrdf_load_stackoverflow)
DK (1) DK5678A (enrdf_load_stackoverflow)
ES (1) ES465952A1 (enrdf_load_stackoverflow)
FR (1) FR2377735A1 (enrdf_load_stackoverflow)
GB (1) GB1587549A (enrdf_load_stackoverflow)
IT (1) IT1089288B (enrdf_load_stackoverflow)
NL (1) NL7714104A (enrdf_load_stackoverflow)
NO (1) NO780126L (enrdf_load_stackoverflow)
SE (1) SE416510B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2580882A1 (fr) * 1985-04-19 1986-10-24 Shure Bros Dispositif de commande d'activation de microphones pour des systemes de teleconference
EP0297975A1 (fr) * 1987-06-30 1989-01-04 France Telecom Dispositif de prise et de restitution du son, notamment pour audio-conférences
EP0311754A3 (en) * 1987-10-12 1989-10-18 Telenorma Telefonbau Und Normalzeit Gmbh Non-manual speech-conferring device
FR2670351A1 (fr) * 1990-12-05 1992-06-12 France Etat Appareil de prise et de restitution du son.
FR2702918A1 (fr) * 1993-03-19 1994-09-23 Prescom Sarl Appareil de prise et de restitution de son, et son application à l'audio-conférence.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH400245A (de) * 1965-10-02 1965-10-15 Peiker Heinrich Einrichtung zum Gegensprechen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2580882A1 (fr) * 1985-04-19 1986-10-24 Shure Bros Dispositif de commande d'activation de microphones pour des systemes de teleconference
EP0297975A1 (fr) * 1987-06-30 1989-01-04 France Telecom Dispositif de prise et de restitution du son, notamment pour audio-conférences
FR2617660A1 (fr) * 1987-06-30 1989-01-06 Larvor Rene Dispositif de prise et de restitution du son, notamment pour audio-conferences
EP0311754A3 (en) * 1987-10-12 1989-10-18 Telenorma Telefonbau Und Normalzeit Gmbh Non-manual speech-conferring device
FR2670351A1 (fr) * 1990-12-05 1992-06-12 France Etat Appareil de prise et de restitution du son.
WO1992010917A1 (fr) * 1990-12-05 1992-06-25 Prescom Dispositif acoustique
FR2702918A1 (fr) * 1993-03-19 1994-09-23 Prescom Sarl Appareil de prise et de restitution de son, et son application à l'audio-conférence.
WO1994022277A1 (fr) * 1993-03-19 1994-09-29 Prescom Appareil de prise et de restitution de son, et son application a l'audio-conference

Also Published As

Publication number Publication date
FR2377735B3 (enrdf_load_stackoverflow) 1980-10-24
DE2800882A1 (de) 1978-07-20
DE2800882C2 (de) 1985-02-28
NL7714104A (nl) 1978-07-18
GB1587549A (en) 1981-04-08
DK5678A (da) 1978-07-15
BE862702A (fr) 1978-07-06
JPS6133314B2 (enrdf_load_stackoverflow) 1986-08-01
ES465952A1 (es) 1978-09-16
SE7800213L (sv) 1978-07-15
JPS5389606A (en) 1978-08-07
NO780126L (no) 1978-07-17
IT1089288B (it) 1985-06-18
SE416510B (sv) 1981-01-05
CA1050154A (en) 1979-03-06

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