Patent · US Expired

Method for reconstructing data clocked at a symbol rate from a distorted analog signal

US7349508B2 · kind B2 · utility

0Cited by

4References

32Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Thomas Duda · Duisburg, DE
Lajos Gaszi · Mülheim an der Ruhr, DE
Peter Gregorius · Munich, DE
Torsten Hinz · Neuss, DE
Martin Renner · Liptingen, DE

Key dates

Filing date	Nov 14, 2003
Grant date	Mar 25, 2008
Priority date	—
Expiry date	May 9, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/03885
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method and a device for reconstructing data, clocked at a symbol rate, from a signal which has been distorted by transmission of a transmission link, are disclosed. The method or respectively, the device, being predominantly performed or implemented, respectively, by means of digital circuit technology in order to improve the quality of the data recovery. The method includes amplifying the signal amplitude attenuated by the transmission; filtering high-frequency interference frequencies above the symbol rate; discretizing the analog signal by means of an analog/digital converter; performing a cable approximation by means of a digitally implemented cable approximation filter in order to obtain an equalized signal; and recovering the data from the equalized signal by means of a phase-locked loop.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.