FR2656761B1 - - Google Patents
Info
- Publication number
- FR2656761B1 FR2656761B1 FR9000032A FR9000032A FR2656761B1 FR 2656761 B1 FR2656761 B1 FR 2656761B1 FR 9000032 A FR9000032 A FR 9000032A FR 9000032 A FR9000032 A FR 9000032A FR 2656761 B1 FR2656761 B1 FR 2656761B1
- Authority
- FR
- France
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9000032A FR2656761A1 (fr) | 1990-01-03 | 1990-01-03 | Transducteur optoacoustique. |
| EP90403766A EP0436437A1 (fr) | 1990-01-03 | 1990-12-26 | Transducteur optoacoustique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9000032A FR2656761A1 (fr) | 1990-01-03 | 1990-01-03 | Transducteur optoacoustique. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2656761A1 FR2656761A1 (fr) | 1991-07-05 |
| FR2656761B1 true FR2656761B1 (US06262066-20010717-C00315.png) | 1997-02-07 |
Family
ID=9392503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9000032A Granted FR2656761A1 (fr) | 1990-01-03 | 1990-01-03 | Transducteur optoacoustique. |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0436437A1 (US06262066-20010717-C00315.png) |
| FR (1) | FR2656761A1 (US06262066-20010717-C00315.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2688372B1 (fr) * | 1992-03-03 | 1996-01-05 | Silec Liaisons Elec | Transducteur optoacoustique miniature. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002897A (en) * | 1975-09-12 | 1977-01-11 | Bell Telephone Laboratories, Incorporated | Opto-acoustic telephone receiver |
| DE2639822B1 (de) * | 1976-09-03 | 1977-12-08 | Siemens Ag | Opto-akustischer Wandler |
| US4689827A (en) * | 1985-10-04 | 1987-08-25 | The United States Of America As Represented By The Secretary Of The Army | Photofluidic audio receiver |
| US4590620A (en) * | 1985-10-17 | 1986-05-20 | Feldman Nathan W | Optical telephone |
-
1990
- 1990-01-03 FR FR9000032A patent/FR2656761A1/fr active Granted
- 1990-12-26 EP EP90403766A patent/EP0436437A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2656761A1 (fr) | 1991-07-05 |
| EP0436437A1 (fr) | 1991-07-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |