DE69302470T2 - MINIATURIZED OPTOACOUSTIC TRANSFORMER - Google Patents

MINIATURIZED OPTOACOUSTIC TRANSFORMER

Info

Publication number
DE69302470T2
DE69302470T2 DE69302470T DE69302470T DE69302470T2 DE 69302470 T2 DE69302470 T2 DE 69302470T2 DE 69302470 T DE69302470 T DE 69302470T DE 69302470 T DE69302470 T DE 69302470T DE 69302470 T2 DE69302470 T2 DE 69302470T2
Authority
DE
Germany
Prior art keywords
optoacoustic
miniaturized
transformer
optoacoustic transformer
miniaturized optoacoustic
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 - Fee Related
Application number
DE69302470T
Other languages
German (de)
Other versions
DE69302470D1 (en
Inventor
Jamal Housni
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.)
Societe Industrielle de Liaisons Electriques SA
Original Assignee
Societe Industrielle de Liaisons Electriques SA
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 Societe Industrielle de Liaisons Electriques SA filed Critical Societe Industrielle de Liaisons Electriques SA
Application granted granted Critical
Publication of DE69302470D1 publication Critical patent/DE69302470D1/en
Publication of DE69302470T2 publication Critical patent/DE69302470T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
DE69302470T 1992-03-03 1993-02-18 MINIATURIZED OPTOACOUSTIC TRANSFORMER Expired - Fee Related DE69302470T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202521A FR2688372B1 (en) 1992-03-03 1992-03-03 MINIATURE OPTOACOUSTIC TRANSDUCER.
PCT/FR1993/000163 WO1993018628A1 (en) 1992-03-03 1993-02-18 Miniature optoacoustic transducer

Publications (2)

Publication Number Publication Date
DE69302470D1 DE69302470D1 (en) 1996-06-05
DE69302470T2 true DE69302470T2 (en) 1996-11-28

Family

ID=9427291

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69302470T Expired - Fee Related DE69302470T2 (en) 1992-03-03 1993-02-18 MINIATURIZED OPTOACOUSTIC TRANSFORMER

Country Status (4)

Country Link
EP (1) EP0629334B1 (en)
DE (1) DE69302470T2 (en)
FR (1) FR2688372B1 (en)
WO (1) WO1993018628A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006033903A1 (en) * 2006-07-19 2008-01-24 Hensel, Johannes, Dipl. Ing. Thermo-optical sound generator for e.g. earphone, has porous material with pores filled with fluid staying in direct contact with medium and under static pressure, where membrane does not exist between fluid in region of material and medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700870A2 (en) 2009-04-22 2010-10-29 Soudronic Ag A process for the production of container bodies of sheet metal and device for carrying out the method.

Family Cites Families (2)

* 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
FR2656761A1 (en) * 1990-01-03 1991-07-05 Silec Liaisons Elec OPTOACOUSTIC TRANSDUCER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006033903A1 (en) * 2006-07-19 2008-01-24 Hensel, Johannes, Dipl. Ing. Thermo-optical sound generator for e.g. earphone, has porous material with pores filled with fluid staying in direct contact with medium and under static pressure, where membrane does not exist between fluid in region of material and medium

Also Published As

Publication number Publication date
WO1993018628A1 (en) 1993-09-16
EP0629334A1 (en) 1994-12-21
EP0629334B1 (en) 1996-05-01
DE69302470D1 (en) 1996-06-05
FR2688372A1 (en) 1993-09-10
FR2688372B1 (en) 1996-01-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee