Method of detecting double talk in an echo canceller
US5809463A · kind A · utility
40Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1995 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Sep 15, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/234
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of detecting double talk in an echo canceller is provided. The method includes determining far end, near end and echo signal cancelled power, determining the presence of near end, maybe near end and far end speech, and controlling an echo suppressor and filter coefficient updates in an echo canceller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.