FR1334235A - Electro-acoustic transformer - Google Patents
Electro-acoustic transformerInfo
- 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
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)
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)
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 |
-
1962
- 1962-09-24 FR FR910272A patent/FR1334235A/en not_active Expired
Cited By (6)
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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