Patent · US Expired

Apparatus for detecting a stable microwave discrete frequency

US4048580A · kind A · utility

8Cited by
6References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 18, 1976
Grant dateSep 13, 1977
Priority date
Expiry dateOct 18, 1996

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03L7/04
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An input signal, whose frequency is to be detected, is divided and sent i two arms. One arm applies a set phase and amplitude adjustment while the other arm has a phase response that is dependent upon the frequency. Both arms are fed to a phase detector whose output is used to indicate the frequency of the input.

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