Phase locked loop with frequency offset

Details Phase locked loop with frequency offset Phase locked loop with frequency offset

1986-01-17

1987-07-07

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

331 20, 331 23, 331 25, 358 17, 358158, H03L 718

Patent

active

046790055

ABSTRACT:
A phase-locked loop for generating an output signal whose phase is locked onto that of a reference signal and whose frequency is offset in respect to an integral multiple of the reference signal frequency comprises a variable-frequency oscillator the output frequency of which is adapted to be varied according to an error signal output from a phase comparator. A frequency divider divides the output frequency from the variable-frequency oscillator by a predetermined dividing ratio, and a phase modulator is supplied with the output of the frequency divider and controlled so that its phase shift amount is increased with time. The output of the phase modulator is compared, in the phase comparator, with the reference signal, the dividing ratio of the frequency divider is changed at intervals related to the offset frequency, and the phase shift amount of the phase modulator is reset at the same time.

REFERENCES:
patent: 4009450 (1977-02-01), Holcomb et al.
patent: 4023115 (1977-05-01), Nicolas

Affiliated with

Also associated with

Rating

Phase locked loop with frequency offset 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 with frequency offset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase locked loop with frequency offset will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1664959