Phase-locked loop circuit and radio communication apparatus usin

Details Phase-locked loop circuit and radio communication apparatus usin Phase-locked loop circuit and radio communication apparatus usin

1998-01-30

2000-12-19

Bocure, Tesfaldet

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

375219, 375376, 327142, H04L 700, H04L 516

Patent

active

061635855

ABSTRACT:
A phase-locked loop circuit includes a current output type phase comparator for converting a phase difference between a first signal and a second signal into a current signal to be outputted, a low pass filter for filtering the current signal of the current output type phase comparator to produce an output signal, a voltage controlled oscillator for producing an output signal having a frequency corresponding to the output signal of the low pass filter, a current source for supplying a current to an input of the low pass filter, a reset switch for applying to the voltage controlled oscillator a reset voltage for canceling a phase-locked state of the phase-locked loop, and a frequency converter for frequency-converting the output signal of the voltage controlled oscillator to produce the second signal.

REFERENCES:
patent: 4562410 (1985-12-01), O'Rourke
patent: 4714900 (1987-12-01), Sata
patent: 4745372 (1988-05-01), Miwa
patent: 4952889 (1990-08-01), Irwin et al.
patent: 5103191 (1992-04-01), Werker
patent: 5313173 (1994-05-01), Lampe
patent: 5359297 (1994-10-01), Hodel et al.
patent: 5424689 (1995-06-01), Gillig et al.
patent: 5436597 (1995-07-01), Dunlap et al.
patent: 5511236 (1996-04-01), Umstattd et al.
patent: 5635879 (1997-06-01), Sutardja et al.
patent: 5825254 (1998-10-01), Lee
patent: 5890051 (1999-03-01), Schlang et al.
Phaselock Techniques, Chapter 10.3, "Translation Loops", pp. 204-207, date unknown, John Wiley & Sons, ISBN 0-471-04294-3.
Design Technique of Analog Integrated Circuit for Super LSI, Last Volume, Chapters 10.3.2, 10.3.3, and 10.3.4, pp. 172-183, Baikufan, date unknown (in Japanese).
D. Turner, "Phase-Locked Loop Phase Adjustment", IBM Technical Disclosure Bulletin, vol. 15, No. 7, Dec. 1972, pp. 2080-2081.

Affiliated with

Also associated with

Rating

Phase-locked loop circuit and radio communication apparatus usin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase-locked loop circuit and radio communication apparatus usin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase-locked loop circuit and radio communication apparatus usin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-276563