Adaptive frequency equalizer
US7447261B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2004 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Apr 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03522
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An adaptive frequency equalization system providing an equalizer that has programmable taps that adjusts magnitude and phase of symbol information of a received signal and that provides equalized symbol information. The system includes a hard decision circuit that selects ideal symbol values using the equalized symbol information. A frequency response circuit determines frequency response update values using the ideal symbol values and the received signal. An adjust circuit updates stored frequency response information using the frequency response update values, and also updates the programmable taps of the equalizer using the stored frequency response information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.