Nonlinear echo compensator for class B transmitter line driver
US7409057B1 · kind B1 · utility
3Cited by
1References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2002 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Feb 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/231
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A nonlinear echo compensator compensates for nonlinear echo in a transceiver including a transmitter line driver with current cells that are operated in a Class B operating mode. A mapping circuit generates a pattern dependent driving signal. A coefficient generator generates a compensator coefficient. A canceling circuit communicates with the mapping circuit and the coefficient generator and compensates for nonlinear echo in a received signal based on the pattern dependent driving signal and the compensator coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.