Apparatus and method for automatic gain control
US9537460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2011 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Sep 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6008
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A speech signal is received at an input. At least one electrical value associated with the received speech signal is tracked. A dynamic adjustment of the speech signal is determined. The dynamic adjustment is selected at least in part so as to minimize a distortion and minimize an over-amplification of the speech signal based at least in part upon an analysis of the at least one electrical value. The dynamic adjustment is further selected to obtain a desired output signal characteristic for the speech signal presented at an output. The dynamic adjustment value is applied to the speech signal and the adjusted speech signal is presented at the output. The gain of the signal can also be limited to prevent over-amplification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.