Sound canceling systems and methods
US7835529B2 · kind B2 · utility
46Cited by
9References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Feb 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/17881
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A system for sound cancellation includes a source microphone for detecting sound and a speaker for broadcasting a canceling sound with respect to a cancellation location. A computational module is in communication with the source microphone and the speaker. The computational module is configured to receive a signal from the source microphone, identify a cancellation signal using a predetermined adaptive filtering function responsive to acoustics of the cancellation location, and transmit a cancellation signal to the speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.