Micro-electroacoustic device
US9210511B2 · kind B2 · utility
2Cited by
21References
7Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Nov 18, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Nov 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A micro-electroacoustic device includes a holder forming a hollow space, a magnetic system received in the hollow space, a vibrating system having a diaphragm and a coil driving the diaphragm for vibrating along a vibrating direction. The diaphragm is assembled with the holder and has an upper edge portion and a lower edge portion connected with the upper edge portion and assembled with the holder. The upper edge portion has a protruding part protruding away from the magnetic system and the lower edge portion has a recessed part recessed towards the magnetic system for supporting the voice coil evenly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.