FR2377735A1 - Appareil telephonique pour salle de conferences - Google Patents
Appareil telephonique pour salle de conferencesInfo
- 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
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)
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 (sv) | 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 (sv) |
BE (1) | BE862702A (sv) |
CA (1) | CA1050154A (sv) |
DE (1) | DE2800882C2 (sv) |
DK (1) | DK5678A (sv) |
ES (1) | ES465952A1 (sv) |
FR (1) | FR2377735A1 (sv) |
GB (1) | GB1587549A (sv) |
IT (1) | IT1089288B (sv) |
NL (1) | NL7714104A (sv) |
NO (1) | NO780126L (sv) |
SE (1) | SE416510B (sv) |
Cited By (5)
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 |
EP0311754A2 (de) * | 1987-10-12 | 1989-04-19 | Telenorma Gmbh | Konferenz-Freisprecheinrichtung |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH400245A (de) * | 1965-10-02 | 1965-10-15 | Peiker Heinrich | Einrichtung zum Gegensprechen |
-
1977
- 1977-01-14 CA CA269,735A patent/CA1050154A/en not_active Expired
- 1977-12-14 GB GB52043/77A patent/GB1587549A/en not_active Expired
- 1977-12-20 NL NL7714104A patent/NL7714104A/xx not_active Application Discontinuation
- 1977-12-30 IT IT31487/77A patent/IT1089288B/it active
-
1978
- 1978-01-04 FR FR7800105A patent/FR2377735A1/fr active Granted
- 1978-01-05 DK DK5678A patent/DK5678A/da unknown
- 1978-01-06 BE BE184153A patent/BE862702A/xx unknown
- 1978-01-09 SE SE7800213A patent/SE416510B/sv not_active IP Right Cessation
- 1978-01-10 DE DE2800882A patent/DE2800882C2/de not_active Expired
- 1978-01-12 NO NO780126A patent/NO780126L/no unknown
- 1978-01-13 JP JP207478A patent/JPS5389606A/ja active Granted
- 1978-01-13 ES ES465952A patent/ES465952A1/es not_active Expired
Cited By (9)
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 |
EP0311754A2 (de) * | 1987-10-12 | 1989-04-19 | Telenorma Gmbh | Konferenz-Freisprecheinrichtung |
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 |
---|---|
JPS6133314B2 (sv) | 1986-08-01 |
IT1089288B (it) | 1985-06-18 |
SE7800213L (sv) | 1978-07-15 |
BE862702A (fr) | 1978-07-06 |
DE2800882A1 (de) | 1978-07-20 |
SE416510B (sv) | 1981-01-05 |
GB1587549A (en) | 1981-04-08 |
JPS5389606A (en) | 1978-08-07 |
FR2377735B3 (sv) | 1980-10-24 |
ES465952A1 (es) | 1978-09-16 |
DK5678A (da) | 1978-07-15 |
CA1050154A (en) | 1979-03-06 |
DE2800882C2 (de) | 1985-02-28 |
NO780126L (no) | 1978-07-17 |
NL7714104A (nl) | 1978-07-18 |
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