Techniques for reduction of delayed reflection inter-symbol interference
US7724847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2005 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jan 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03286
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described to reduce delayed reflection inter-symbol interference (ISI) in signals. In some implementations, a channel reflection canceller is provided at a signal receiver to reduce delayed reflection ISI in received signals. The channel reflection canceller may be provided with a signal from an equalizer output or a tentative or final decision from a forward-error correction (FEC) decoder. Based on the signal from the equalizer output or tentative or final decisions from the FEC decoder, the channel reflection canceller may generate a signal to reduce delayed reflection ISI in received signals. In addition or as an alternative, in some implementations, the remote transmitter of the signal generates a delayed reflection ISI reducing signal to reduce delayed reflection ISI present in the signal transmitted over a channel. The transmitter may generate the delayed reflection ISI reducing signal using information provided by the remote signal receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.