FR1334235A - Electro-acoustic transformer - Google Patents

Electro-acoustic transformer

Info

Publication number
FR1334235A
FR1334235A FR910272A FR910272A FR1334235A FR 1334235 A FR1334235 A FR 1334235A FR 910272 A FR910272 A FR 910272A FR 910272 A FR910272 A FR 910272A FR 1334235 A FR1334235 A FR 1334235A
Authority
FR
France
Prior art keywords
electro
acoustic transformer
acoustic
transformer
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
Application number
FR910272A
Other languages
French (fr)
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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
Priority claimed from DES76040A external-priority patent/DE1144770B/en
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to FR910272A priority Critical patent/FR1334235A/en
Application granted granted Critical
Publication of FR1334235A publication Critical patent/FR1334235A/en
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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR910272A 1961-09-29 1962-09-24 Electro-acoustic transformer Expired FR1334235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR910272A FR1334235A (en) 1961-09-29 1962-09-24 Electro-acoustic transformer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES76040A DE1144770B (en) 1961-09-29 1961-09-29 Electroacoustic converter
FR910272A FR1334235A (en) 1961-09-29 1962-09-24 Electro-acoustic transformer

Publications (1)

Publication Number Publication Date
FR1334235A true FR1334235A (en) 1963-08-02

Family

ID=25996624

Family Applications (1)

Application Number Title Priority Date Filing Date
FR910272A Expired FR1334235A (en) 1961-09-29 1962-09-24 Electro-acoustic transformer

Country Status (1)

Country Link
FR (1) FR1334235A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070741A1 (en) * 1969-12-05 1971-09-17 Siemens Ag
EP0072289A2 (en) * 1981-08-11 1983-02-16 Thomson-Csf Electro-acoustic transducer with intrinsically polarized dielectric capacitor
EP0331591A1 (en) * 1988-03-01 1989-09-06 HORLOGERIE PHOTOGRAPHIQUE FRANCAISE (société anonyme) Electroacoustic capsule with a piezo-electric diaphragm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070741A1 (en) * 1969-12-05 1971-09-17 Siemens Ag
EP0072289A2 (en) * 1981-08-11 1983-02-16 Thomson-Csf Electro-acoustic transducer with intrinsically polarized dielectric capacitor
FR2511571A1 (en) * 1981-08-11 1983-02-18 Thomson Csf ELECTROACOUSTIC TRANSDUCER WITH CONDENSER WITH POLARIZED SOLID DIELECTRIC
EP0072289A3 (en) * 1981-08-11 1983-04-06 Thomson-Csf Electro-acoustic transducer with intrinsically polarized dielectric capacitor
EP0331591A1 (en) * 1988-03-01 1989-09-06 HORLOGERIE PHOTOGRAPHIQUE FRANCAISE (société anonyme) Electroacoustic capsule with a piezo-electric diaphragm
FR2628282A1 (en) * 1988-03-01 1989-09-08 Horlogerie Photograph Fse ELECTROACOUSTIC CAPSULE WITH PIEZOELECTRIC MEMBRANE

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