Patent · US Expired

Error correction circuit

US6047031A · kind A · utility

7Cited by
10References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 1997
Grant dateApr 4, 2000
Priority date
Expiry dateMar 31, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L25/063
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An error correction circuit compensates for baseline wander which can occur when a data signal is passed through a DC isolation stage. The data signal, and its inverse are compared with a common reference level, and the error signal modifies the charge on a capacitor which forms part of a pair of negative feedback loop to control the baseline level.

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