Acoustic transducer with improved electrode spacing
US4730283A · kind A · utility
24Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1986 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Sep 15, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/604
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic transducer with an improved electret assembly mounting for providing spacings between the fixed and movable electrodes, and having as one feature the lowering of the undesired capacitance therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.