Adaptive personal active noise reduction system
US6898290B1 · kind B1 · utility
12Cited by
22References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2000 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Mar 27, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1083
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both feedback and feed forward components so as to provide a heteronomous attenuation and more complete active noise attenuation and the adjustable acousto-electric sensor is moved to exploit the changing physical characteristics of spatial silent zones in different noise fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.