FR1597238A - - Google Patents

Info

Publication number
FR1597238A
FR1597238A FR1597238DA FR1597238A FR 1597238 A FR1597238 A FR 1597238A FR 1597238D A FR1597238D A FR 1597238DA FR 1597238 A FR1597238 A FR 1597238A
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
Application number
Other languages
French (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
Application granted granted Critical
Publication of FR1597238A publication Critical patent/FR1597238A/fr
Expired 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/02—Microphones
FR1597238D 1968-07-29 1968-12-27 Expired FR1597238A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74827268A 1968-07-29 1968-07-29

Publications (1)

Publication Number Publication Date
FR1597238A true FR1597238A (en) 1970-06-22

Family

ID=25008744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1597238D Expired FR1597238A (en) 1968-07-29 1968-12-27

Country Status (6)

Country Link
CH (1) CH501349A (en)
DE (1) DE1916719C3 (en)
DK (1) DK136749B (en)
FR (1) FR1597238A (en)
GB (1) GB1234218A (en)
NL (1) NL150656B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531299A1 (en) * 1982-08-02 1984-02-03 Depaepe Sa Henri Acousto-electric transducer, in particular for a piezoelectric microphone.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2380361B1 (en) * 2009-01-14 2019-03-20 Hewlett-Packard Development Company, L.P. Acoustic pressure transducer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL298219A (en) * 1962-11-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531299A1 (en) * 1982-08-02 1984-02-03 Depaepe Sa Henri Acousto-electric transducer, in particular for a piezoelectric microphone.

Also Published As

Publication number Publication date
CH501349A (en) 1970-12-31
NL150656B (en) 1976-08-16
NL6900622A (en) 1970-02-02
DE1916719A1 (en) 1970-03-05
DE1916719B2 (en) 1970-09-10
DE1916719C3 (en) 1971-04-15
GB1234218A (en) 1971-06-03
DK136749C (en) 1978-04-24
DK136749B (en) 1977-11-14

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Legal Events

Date Code Title Description
ST Notification of lapse