Block decision directed equalization method and apparatus
US6763064B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Aug 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/0342
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for receiving data over a dispersive media is disclosed. The received signal is composed of an unknown data segment preceded and followed by known data segments. A replica of each known data segment is generated by the communication apparatus. Channel characteristics existing at the time of transmission of the known data segments are estimated by comparing the known data segments with the replica. Using estimations of the channel characteristics, symbols of the unknown data segment can be determined. Decisions can be made on the various unknown symbols as they are analyzed. Channel characteristics can be re-estimated after determining each symbol, each pair of symbols or each group of symbols. Two solutions of the unknown symbols can be combined in various ways to arrive at a final determination of the unknown transmitted symbols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.