Oscillators – Automatic frequency stabilization using a phase or frequency... – Tuning compensation
Reexamination Certificate
2009-12-11
2011-10-11
Mis, David (Department: 2817)
Oscillators
Automatic frequency stabilization using a phase or frequency...
Tuning compensation
C331S00100A, C331S025000, C327S156000, C327S157000, C327S159000
Reexamination Certificate
active
08035451
ABSTRACT:
A difference between a reference clock and feedback clock is detected to generate a difference signal that is filtered to generate a voltage controlled oscillator control signal and produce an oscillation signal having an oscillation frequency. A first frequency dividing circuit divides the oscillation signal by a selected one of a number of first frequency divisors to generate an output signal at a selected frequency. A second frequency dividing circuit divides the output signal by a selected one of a number of second frequency divisors to generate the feedback clock. The frequency divisors are selected by a frequency selection signal. The first frequency dividing circuit samples the frequency selection signal at the rate of the oscillation signal divided by a least common multiple of the plurality of first frequency divisors. The second frequency dividing circuit samples the sampled frequency selection signal at the rate of the feedback clock.
REFERENCES:
patent: 6137368 (2000-10-01), Cho
Gardere Wynne & Sewell LLP
Mis David
STMicroelectronics Pvt. Ltd.
LandOfFree
On-the-fly frequency switching while maintaining phase and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with On-the-fly frequency switching while maintaining phase and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-the-fly frequency switching while maintaining phase and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4294910