Method, system and computer program product for estimating a level of noise
US9137611B2 · kind B2 · utility
4Cited by
3References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In response to a signal failing to exceed an estimated level of noise by more than a predetermined amount for more than a predetermined continuous duration, the estimated level of noise is adjusted according to a first time constant in response to the signal rising and a second time constant in response to the signal falling, so that the estimated level of noise falls more quickly than it rises. In response to the signal exceeding the estimated level of noise by more than the predetermined amount for more than the predetermined continuous duration, a speed of adjusting the estimated level of noise is accelerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.