Receiver-based adaptive equalizer with pre-cursor compensation
US8081677B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2005 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Dec 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03617
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An equalization circuit is disclosed that enables high data rate transmission over high loss communications channels. Also disclosed is a set of functional blocks and update criteria that allow for the equalization function to be adapted for a large variety of different communications channels. A fully continuous adaptive equalizer is used in conjunction with a Decision Feedback Equalizer to fully equalize a wide range of communications channels. Interoperability and Bit Error Rate performance are optimized through compensation of pre-cursor inter-symbol interference, which is performed adaptively in the receiver as opposed to the transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.