Patent · US Expired

Threshold tracking system

US4837642A · kind A · utility

8Cited by
6References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 12, 1988
Grant dateJun 6, 1989
Priority date
Expiry dateJan 12, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L25/497
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A decoder system for decoding signals such as Class IV partial-response signals. In the decoder system, threshold levels are used to distinguish between binary ones and zeros in partial-response signals. The threshold levels are adjusted by a feedback system to automatically compensate for effects such as signal dropouts.

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