Asymmetric multi-channel adaptive equalizer
US7885323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Aug 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0053
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus is disclosed to compensate for non-linear effects resulting from the transmitter, the receiver, and/or the communication channel in a communication system. A receiver of the communication system contains an image cancellation module that compensates for images generated during the modulation and/or demodulation process. The image cancellation module includes a fine carrier correction loop to correct for frequency offsets between the transmitter and receiver. The image cancellation module includes a coarse acquisition mode and a decision directed mode. The decision directed mode allows for a larger signal-to-noise ratio for the receiver when compared against the coarse acquisition mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.