Non-linear decision feedback equalizer
US8300685B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2007 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Aug 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03547
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments include a decision feedback equalizer (DFE) that includes a first comparator configured to receive as inputs a soft value and a first threshold, a second comparator configured to receive as inputs the soft value and a second threshold, a selector configured to select an output of either the first comparator or the second comparator as a DFE output based on one or more previous bits output by the selector; an error calculator configured to determine an error for the first comparator and the second comparator, and a threshold adjuster configured to adjust the first threshold and the second threshold, the first threshold and the second threshold each being a non-linear combination of one or more previous outputs of the selector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.