Channel equalization in data receivers
US7424053B2 · kind B2 · utility
12Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Dec 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03662
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Channel equalization in a 1000BASE-T receiver is performed by a fixed mode analog filter 2 suitable for the longest possible cable length, by a FFE (3), and by a digital filter 4. The digital filter (4) has two sets of taps. One set is optimal for shorter cable lengths and so cancels adaptation for long cable lengths and assists operation of the analog filter. A decision block (5) selects an appropriate set of taps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.