ES465952A1 - Perfeccionamientos en aparatos telefonicos para salas de conferencias. - Google Patents
Perfeccionamientos en aparatos telefonicos para salas de conferencias.Info
- Publication number
- ES465952A1 ES465952A1 ES465952A ES465952A ES465952A1 ES 465952 A1 ES465952 A1 ES 465952A1 ES 465952 A ES465952 A ES 465952A ES 465952 A ES465952 A ES 465952A ES 465952 A1 ES465952 A1 ES 465952A1
- Authority
- ES
- Spain
- Prior art keywords
- box
- microphone
- approximately
- loudspeaker
- common axis
- 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
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)
Abstract
Perfeccionamientos en aparatos telefónicos para salas de conferenciacaracterizados porque se dota a cada aparato de una caja; un altavoz montado en el extremo superior de la caja y un micrófono montado en el extremo inferior de la cajasobre un eje común y encarados en sentido contrario entre sísiendo la distancia periférica desde la línea central de altavoz hasta la línea central del micrófono alrededor del exterior de la caja del orden de 381 mm; una superficie inclinada que se extiende hacia arriba y hacia fuera del micrófono hasta la periferia de la cajacon un ángulo de aproximadamente 30º +- 5º aproximadamente con relación al plano perpendicular al eje común; medios para sostener la caja con la superficie frontal del micrófono a una distancia de aproximadamente 127 mm +- 127 mm desde una superficie perpendicular al eje comúnsiendo el micrófono del tipo sensible al sonido aéreo solamente e insensible a las vibraciones mecánicas.
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 (1)
| Publication Number | Publication Date |
|---|---|
| ES465952A1 true ES465952A1 (es) | 1978-09-16 |
Family
ID=4107730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES465952A Expired ES465952A1 (es) | 1977-01-14 | 1978-01-13 | Perfeccionamientos en aparatos telefonicos para salas de conferencias. |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5389606A (es) |
| BE (1) | BE862702A (es) |
| CA (1) | CA1050154A (es) |
| DE (1) | DE2800882C2 (es) |
| DK (1) | DK5678A (es) |
| ES (1) | ES465952A1 (es) |
| FR (1) | FR2377735A1 (es) |
| GB (1) | GB1587549A (es) |
| IT (1) | IT1089288B (es) |
| NL (1) | NL7714104A (es) |
| NO (1) | NO780126L (es) |
| SE (1) | SE416510B (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61242499A (ja) * | 1985-04-19 | 1986-10-28 | シユア・ブラザ−ズ・インコ−ポレイテツド | マイクロホン装置 |
| FR2617660B1 (fr) * | 1987-06-30 | 1990-06-08 | Larvor Rene | Dispositif de prise et de restitution du son, notamment pour audio-conferences |
| DE3734447C1 (de) * | 1987-10-12 | 1989-05-18 | Telefonbau & Normalzeit Gmbh | Konferenz-Freisprecheinrichtung |
| FR2670351B1 (fr) * | 1990-12-05 | 1997-04-30 | France Etat | Appareil de prise et de restitution du son. |
| FR2702918B1 (fr) * | 1993-03-19 | 1995-05-12 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6133314B2 (es) | 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 (es) | 1980-10-24 |
| DK5678A (da) | 1978-07-15 |
| CA1050154A (en) | 1979-03-06 |
| FR2377735A1 (fr) | 1978-08-11 |
| DE2800882C2 (de) | 1985-02-28 |
| NO780126L (no) | 1978-07-17 |
| NL7714104A (nl) | 1978-07-18 |
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