SE377261B - - Google Patents
Info
- Publication number
- SE377261B SE377261B SE7300656A SE7300656A SE377261B SE 377261 B SE377261 B SE 377261B SE 7300656 A SE7300656 A SE 7300656A SE 7300656 A SE7300656 A SE 7300656A SE 377261 B SE377261 B SE 377261B
- Authority
- SE
- Sweden
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
- H04R17/02—Microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2202254 | 1972-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE377261B true SE377261B (xx) | 1975-06-23 |
Family
ID=5833327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7300656A SE377261B (xx) | 1972-01-18 | 1973-01-17 |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2202254C2 (xx) |
| FR (1) | FR2168396B1 (xx) |
| GB (1) | GB1402352A (xx) |
| IT (1) | IT978221B (xx) |
| SE (1) | SE377261B (xx) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2831377A1 (de) * | 1978-07-17 | 1980-01-31 | Siemens Ag | Elektroakustischer wandler |
| US4228379A (en) * | 1978-08-28 | 1980-10-14 | American District Telegraph Company | Diaphragm type piezoelectric electroacoustic transducer |
| US4337640A (en) * | 1979-04-10 | 1982-07-06 | Nissan Motor Co., Ltd. | Knocking sensor |
| DE3041742C2 (de) * | 1980-11-05 | 1982-10-28 | Siemens AG, 1000 Berlin und 8000 München | Luftschallgeber |
| DE102007003280A1 (de) | 2007-01-23 | 2008-07-24 | Epcos Ag | Piezoelektrisches Bauelement |
| DE102011005249B4 (de) * | 2011-03-08 | 2013-03-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung zur Wandlung mechanischer Energie in elektrische Energie und Verfahren zu ihrer Herstellung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1072621A (fr) * | 1953-01-09 | 1954-09-14 | Sodet | Microphone |
| US2836738A (en) * | 1956-05-02 | 1958-05-27 | Joseph W Crownover | Prestressed piezo crystal |
| DE1165667B (de) * | 1962-06-28 | 1964-03-19 | Siemens Ag | Piezoelektrischer Biegeschwinger |
| GB1159337A (en) * | 1966-06-13 | 1969-07-23 | Motorola Inc | Piezoelectric Transducers |
-
1972
- 1972-01-18 DE DE19722202254D patent/DE2202254C2/de not_active Expired
-
1973
- 1973-01-11 GB GB146973A patent/GB1402352A/en not_active Expired
- 1973-01-16 FR FR7301450A patent/FR2168396B1/fr not_active Expired
- 1973-01-17 SE SE7300656A patent/SE377261B/xx unknown
- 1973-01-17 IT IT1929173A patent/IT978221B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| IT978221B (it) | 1974-09-20 |
| FR2168396A1 (xx) | 1973-08-31 |
| DE2202254C2 (de) | 1974-01-24 |
| FR2168396B1 (xx) | 1979-01-26 |
| DE2202254B1 (de) | 1973-06-20 |
| GB1402352A (en) | 1975-08-06 |