Digital phase locked loop for correcting a phase of an output si

Oscillators – Automatic frequency stabilization using a phase or frequency... – With intermittent comparison controls

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

331 17, 331 25, 328 14, 328155, H03L 7093

Patent

active

050558013

ABSTRACT:
A digital phase locked loop for correcting the phase of an output signal with respect to an input signal has a phase comparator for comparing the phases of the input signal and a feedback signal from a variable frequency oscillator. The output signal of the phase comparator representing the phase difference is integrated in a low pass filter. The output of the low pass filter is supplied to a switch which alternately selects between the output of the low pass filter and a zero level signal from a zero generator. The output of the switch is supplied to the variable frequency oscillator. The output signal of the variable frequency oscillator is returned to the phase comparator, so that the phase of the output signal from the variable frequency oscillator is synchronized with the phase of the input signal.

REFERENCES:
patent: 4135166 (1979-01-01), Marchetti
patent: 4942371 (1990-07-01), Kashiwaba et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Digital phase locked loop for correcting a phase of an output si does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital phase locked loop for correcting a phase of an output si, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital phase locked loop for correcting a phase of an output si will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-259446

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.