Microphone screen with common mode interference reduction
US8428285B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Nov 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/086
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone assembly includes a microphone composed of a case having an open end and a printed circuit board. The printed circuit board is disposed in the open case end. The microphone assembly further includes a metal screen coupled to the case over the printed circuit board for shielding the microphone from electromagnetic interference. The metal screen includes several apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.