Non-linear echo canceller
US5148427A · kind A · utility
49Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1990 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Apr 10, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/238
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for echo cancelling linear and nonlinear echo components from a received signal by temporally and spatially separating the overall echo canceller into a fast, transversal filter based linear echo canceller which quickly cancels the linear echoes and a slow, look-up table based nonlinear echo canceller which cancels the nonlinear echo components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.