FR2239071A1 - - Google Patents
Info
- Publication number
- FR2239071A1 FR2239071A1 FR7425945A FR7425945A FR2239071A1 FR 2239071 A1 FR2239071 A1 FR 2239071A1 FR 7425945 A FR7425945 A FR 7425945A FR 7425945 A FR7425945 A FR 7425945A FR 2239071 A1 FR2239071 A1 FR 2239071A1
- 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.)
- Granted
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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38293173A | 1973-07-26 | 1973-07-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2239071A1 true FR2239071A1 (en) | 1975-02-21 |
| FR2239071B3 FR2239071B3 (en) | 1977-05-20 |
Family
ID=23511011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7425945A Expired FR2239071B3 (en) | 1973-07-26 | 1974-07-25 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5829680B2 (en) |
| BR (1) | BR7405611D0 (en) |
| CA (1) | CA1006969A (en) |
| DE (1) | DE2435910C2 (en) |
| FR (1) | FR2239071B3 (en) |
| GB (1) | GB1428589A (en) |
| IT (1) | IT1016669B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457211A2 (en) * | 1990-05-12 | 1991-11-21 | Hoechst CeramTec Aktiengesellschaft | Piezoelectric sound generator and process for its manufacture |
| RU2768297C1 (en) * | 2021-07-06 | 2022-03-23 | АКЦИОНЕРНОЕ ОБЩЕСТВО "КОНЦЕРН "МОРСКОЕ ПОДВОДНОЕ ОРУЖИЕ - ГИДРОПРИБОР" (АО "Концерн "МПО-Гидроприбор") | Composite electroacoustic transducer |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1087004A (en) * | 1976-08-11 | 1980-10-07 | Michael J. Hampshire | Sound generator |
| US4228379A (en) * | 1978-08-28 | 1980-10-14 | American District Telegraph Company | Diaphragm type piezoelectric electroacoustic transducer |
| JP2915716B2 (en) * | 1992-08-26 | 1999-07-05 | ティーディーケイ株式会社 | Electronic components |
| US6791098B2 (en) | 1994-01-27 | 2004-09-14 | Cymer, Inc. | Multi-input, multi-output motion control for lithography system |
| US6404107B1 (en) | 1994-01-27 | 2002-06-11 | Active Control Experts, Inc. | Packaged strain actuator |
| US6420819B1 (en) | 1994-01-27 | 2002-07-16 | Active Control Experts, Inc. | Packaged strain actuator |
| US6959484B1 (en) | 1994-01-27 | 2005-11-01 | Cymer, Inc. | System for vibration control |
| EP1813387B1 (en) * | 2004-11-19 | 2013-07-17 | Toyoda Van Moppes Ltd. | Grinding wheel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4222078Y1 (en) * | 1965-01-14 | 1967-12-16 | ||
| US3440648A (en) * | 1968-05-09 | 1969-04-22 | Mallory & Co Inc P R | Integrated-circuit amplifier and oscillator |
| US3588552A (en) * | 1969-09-23 | 1971-06-28 | Motorola Inc | Prestressed piezoelectric audio transducer |
| CA930211A (en) * | 1970-08-20 | 1973-07-17 | Johnson Matthey And Mallory Limited | Piezoelectric transducer and noise making device utilizing same |
-
1974
- 1974-06-24 CA CA203,166A patent/CA1006969A/en not_active Expired
- 1974-07-08 BR BR561174A patent/BR7405611D0/en unknown
- 1974-07-23 IT IT6933874A patent/IT1016669B/en active
- 1974-07-25 JP JP49085550A patent/JPS5829680B2/en not_active Expired
- 1974-07-25 DE DE19742435910 patent/DE2435910C2/en not_active Expired
- 1974-07-25 FR FR7425945A patent/FR2239071B3/fr not_active Expired
- 1974-07-26 GB GB3325274A patent/GB1428589A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457211A2 (en) * | 1990-05-12 | 1991-11-21 | Hoechst CeramTec Aktiengesellschaft | Piezoelectric sound generator and process for its manufacture |
| EP0457211A3 (en) * | 1990-05-12 | 1992-12-23 | Hoechst Ceramtec Aktiengesellschaft | Piezoelectric sound generator and process for its manufacture |
| RU2768297C1 (en) * | 2021-07-06 | 2022-03-23 | АКЦИОНЕРНОЕ ОБЩЕСТВО "КОНЦЕРН "МОРСКОЕ ПОДВОДНОЕ ОРУЖИЕ - ГИДРОПРИБОР" (АО "Концерн "МПО-Гидроприбор") | Composite electroacoustic transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2435910A1 (en) | 1975-02-27 |
| BR7405611D0 (en) | 1975-05-13 |
| GB1428589A (en) | 1976-03-17 |
| IT1016669B (en) | 1977-06-20 |
| JPS5829680B2 (en) | 1983-06-24 |
| CA1006969A (en) | 1977-03-15 |
| JPS5044789A (en) | 1975-04-22 |
| FR2239071B3 (en) | 1977-05-20 |
| DE2435910C2 (en) | 1985-01-24 |