Patent · US Expired

Method for recovering a control signal for controlling the phase of a local carrier signal

US4860320A · kind A · utility

5Cited by
6References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 21, 1988
Grant dateAug 22, 1989
Priority date
Expiry dateDec 21, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2027/0067
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Reliable phase synchronicity between a local carrier signal and the carrier signal of an amplitude and/or phase shift keyed received signal is produced as quickly as possible by employing a phase detector characteristic whose root means square outside of the synchronization point is as large as possible and whose synchronization point, i.e., zero passage, is situated such that it also considers a phase deviation of the received signal component from its quadrature position.

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