Decision feed forward equalizer system and method
US7450634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2003 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03617
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An equalizer and corresponding methods is arranged and constructed to mitigate adverse effects of a wireless channel (300). The equalizer includes a delay line (503) coupled to an input signal (501) and comprising a delay circuit coupled to an output combiner (507) that is operable to provide an interim signal (g0 . . . gN) and a feed forward circuit (505) coupled to the delay line and operable to provide a feed forward signal (506) that comprises a hard decision scaled according to a scaling factor corresponding to an estimate of channel parameters, wherein the output combiner is operable to combine the feed forward signal and the interim signal to provide an output signal (509) that is compensated for an adverse effect of the wireless channel on the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.