Patent · US Expired

Method for detecting and correcting non-linearities in radio-frequency, voltage controlled oscillators

US6545634B1 · kind B1 · utility

10Cited by

9References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Patric Heide · Vaterstetten, DE
Matthias Huschenbett · Parker, US
Martin Kunert · Neutraubling, DE
Richard Roskosch · Ottobrunn, DE

Key dates

Filing date	Aug 17, 2001
Grant date	Apr 8, 2003
Priority date	—
Expiry date	Aug 17, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH03B23/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for detecting and correcting non-linearities in radio-frequency, voltage controlled oscillators provides for digitization of the frequency signal by feeding the undelayed frequency signal and a delayed frequency signal generated therefrom into EXOR gates. The digital pulses produced thereform are converted using a low pass filter into a proportional DC voltage value which is proportional to the oscillator frequency and is used as a basis for producing a correction value for the frequency control of the oscillator.

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