Method and apparatus for providing echo cancellation in a network
US8391126B2 · kind B2 · utility
1Cited by
0References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jul 4, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing echo cancellation are disclosed. For example, the method receives via an echo canceller a first audio signal directed towards an endpoint device, and adds an inserted signal to the first audio signal directed towards the endpoint device. The method determines if a second audio signal being received from the endpoint device comprises the inserted signal, and cancels at least a portion of the second audio signal that is associated with the first audio signal, if the inserted signal is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.