Noise reducing system for voice microphones
US5046103A · kind A · utility
38Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1988 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Jun 7, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3219
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A conventional voice microphone placed in non-critical spaced relation to a source of intelligible speech sound while exposed to an acoustical field of ambient noise, electrically transmits output signals attenuated under control of a signal processing controller to which a sampled input of noise signals is fed by a reference microphone exposed to the same acoustical noise field as the voice microphone for audio reproduction of the speech sound without background noise by programming of the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.