Oscillators – Automatic frequency stabilization using a phase or frequency... – With intermittent comparison controls
Patent
1998-11-30
1999-12-07
Grimm, Siegfried H.
Oscillators
Automatic frequency stabilization using a phase or frequency...
With intermittent comparison controls
331 16, 331 25, 331 1A, H03L 7085, H03L 7181
Patent
active
059990600
ABSTRACT:
A frequency synthesizer includes a first counter for counting cycles of an input clock and for generating a reference output bus, a VCO for generating an output signal, a second counter for counting cycles of the output signal and for generating a VCO output bus, and a phase detector for measuring the phase error between the reference bus and the VCO output bus and for generating a control signal which is applied to the control input of the VCO. The phase detector includes circuitry for computing a corrected bus by multiplying the VCO output bus with a correction coefficient proportional to the reciprocal of the modulo count of the second counter.
REFERENCES:
patent: 5182528 (1993-01-01), Zuta
patent: 5363419 (1994-11-01), Ho
patent: 5459435 (1995-10-01), Taki
Zuta, "A New PLL With Fast Settling Time and Low Phase Noise", Microwave Journal, Jun. 1998, pp. 94, 96, , 98, 100, 102, 104, 106, 108. (331-25).
LandOfFree
Digital frequency synthesizer system and method 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 frequency synthesizer system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital frequency synthesizer system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-828689