Systems and methods for reducing non-linearities of a microphone signal
US9571931B1 · kind B1 · utility
4Cited by
35References
10Claims
0Family size
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Key dates
| Filing date | Apr 8, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R19/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
To correct for non-linearities in the response of a microphone as a function of sound pressure level incident upon the microphone, a displacement non-linearity function is applied to the signal path of the microphone, wherein the displacement non-linearity function is a function of the digital audio output signal and has a response modeling non-linearities of the displacement as a function of a sound pressure level incident upon the microphone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.