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
Application number
FR9000032A
Other languages
French (fr)
Other versions
FR2656761A1 (fr
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 filed Critical
Priority to FR9000032A priority Critical patent/FR2656761A1/fr
Priority to EP90403766A priority patent/EP0436437A1/fr
Publication of FR2656761A1 publication Critical patent/FR2656761A1/fr
Application granted granted Critical
Publication of FR2656761B1 publication Critical patent/FR2656761B1/fr
Granted legal-status Critical Current

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)
FR9000032A 1990-01-03 1990-01-03 Transducteur optoacoustique. Granted FR2656761A1 (fr)

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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2656761A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2656761A1 (fr) 1991-07-05
EP0436437A1 (fr) 1991-07-10

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Legal Events

Date Code Title Description
ST Notification of lapse