Dual diaphragm electroacoustic transducer
US7912240B2 · kind B2 · utility
95Cited by
12References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2005 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to dual-diaphragm electroacoustic transducers wherein a common magnetic flux path comprises first and second magnetic gaps and a magnet assembly. The invention may provide a miniature transducer with a compact magnetic flux path of improved performance. Electroacoustic transducers in accordance with the invention may comprise a small number of separate parts and provide good acoustic conversion efficiency in a miniature or compact housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.