Microphone system with a stop member
US9338559B2 · kind B2 · utility
5Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2013 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | May 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R19/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone system has a package with an interior chamber and an inlet aperture for receiving an acoustic signal, and a microphone die having a backplate and a diaphragm. The microphone is positioned within the package interior to form a front volume between the diaphragm and the inlet aperture. Accordingly, the microphone is positioned to form a back volume defined in part by the diaphragm within the interior chamber. The system also has a stop member positioned in the back volume so that the diaphragm is between the stop member and the backplate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.