Automatic tuning of a gain controller
US10244121B2 · kind B2 · utility
31Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Oct 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A gain control system for applying gain to a far-end signal, the system comprising: a signal identifier configured to detect an echo of the far-end signal in a microphone signal; and a path estimator configured to estimate a characteristic of an echo path of the detected echo, wherein: the signal identifier is further configured to detect a near-end signal from the microphone signal; and in response to detecting the near-end signal, the gain control system is configured to adjust the gain applied to the far-end signal in dependence on the estimated characteristic of the echo path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.