Apparatus and method for echo control
US7027593B2 · kind B2 · utility
2Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/23
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Determining the time delay between a transmitted signal and an echo. Then, the echo canceller is adjusted by the delay amount so that the echo canceller tail length is relatively short.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.