Electro-acoustical transducer and a transducer assembly
US8379899B2 · kind B2 · utility
88Cited by
14References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2005 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Oct 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electro-acoustical transducer comprising DC atmospheric pressure equalization vents for equalizing pressure in both chambers therein. The sound port of the transducer may be sealed by a sound conducting member preventing gas flow there through. The transducer may have a single vent extending in a plane of a side portion, which vent may have a meandering path or may comprise tapering portions or cavities defining acoustical properties thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.