Vehicle accessory microphone having mechanism for reducing line-induced noise
US7616768B2 · kind B2 · utility
4Cited by
88References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2004 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Oct 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A microphone assembly includes one or more transducers positioned in one or more housings. A processing circuit is coupled to the transducer for outputting an electrical signal such that the microphone in combination with the processing circuit very effectively cancels noise. The microphone assembly can be employed in a vehicle accessory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.