Patent · US Expired

Phase-locked loop with course providing damping and natural frequency independence

US5856762A · kind A · utility

8Cited by

6References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Heinz Werker · Huglfing, DE
Thomas Eichler · Munich, DE
Dirk Scheideler · Munich, DE

Key dates

Filing date	Jul 22, 1997
Grant date	Jan 5, 1999
Priority date	—
Expiry date	Jul 22, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S331/02
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A phase-locked loop includes a switched phase detector, a loop filter and an oscillator connected in series, as well as a device for technology compensation, in particular a course control device. An operating point is adjusted during a starting phase of the phase-locked loop through the use of the course control device in such a way that the damping and natural frequency of the phase-locked loop is independent of fluctuations in technology parameters.

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