Patent · US Expired

Digital phase lock loop

US4930142A · kind A · utility

18Cited by
12References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 6, 1988
Grant dateMay 29, 1990
Priority date
Expiry dateDec 6, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L7/0331
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

An apparatus and/or method for generating a digital clock signal which is frequency and phase referenced to an external digital data signal is disclosed. The external digital data signal is typically subject to variations in data frequency and high frequency jitter unrelated to changes in the data frequency.

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