Digital filter for second tap of DFE
US11463094B1 · kind B1 · utility
0Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Jul 9, 2021 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Jul 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03025
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various embodiments provide a method or system that implements a two-tap decision feedback equalizer by applying a first tap and a second tap on a first symbol of a data signal, each of the first and second taps having a first and second polarity to generate a first corrected data symbol and a second corrected data symbol. The first corrected data symbol and the second corrected data symbol is provided to a comparator to select a data symbol. The output of the comparator is provided to a clock data recovery circuit along with a previous data symbol of the data signal preceding the first data symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.