Apparatus for suppressing radio frequency interference in a microphone assembly with preamplifier
US7706559B2 · kind B2 · utility
9Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Feb 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/49
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone assembly comprises a housing that includes a conductive material. A preamplifier circuit is disposed within the housing, the preamplifier circuit having a signal input and a ground terminal. A microphone portion is disposed within the housing, the microphone portion having an output coupled to the signal input of the preamplifier circuit. A ribbon wire is attached to the ground terminal of the preamplifier circuit and is attached to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.