Noise suppression device, system, and method
US9190071B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Aug 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02085
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise-suppression assembly of a mechanical drive system having a rotational frequency includes an audio filter unit configured to receive a first audio signal and a timing signal of the mechanical drive system. The audio filter unit generates a noise-cancellation signal based on a frequency of the timing signal to suppress a noise generated by the mechanical drive system and to apply the noise-cancellation signal to the first audio signal to produce a filtered first audio signal. The frequency of the timing signal is based on the rotational frequency of the mechanical drive system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.