Method of generating an output of a frequency synthesizer

Oscillators – With frequency adjusting means – With voltage sensitive capacitor

Reexamination Certificate

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Details

C331S179000, C331S016000, C331S00100A, C331S034000

Reexamination Certificate

active

07576622

ABSTRACT:
A method of generating an output of a frequency synthesizer is disclosed. The method comprises the steps of generating an output of the frequency synthesizer based upon frequency synthesizer values and a reference clock signal; receiving a command comprising a first new frequency synthesizer value; locking to a new frequency based upon the first new frequency synthesizer value; and simultaneously loading a second new frequency synthesizer value while locking to the new frequency. A circuit for generating an output of a frequency synthesizer is also disclosed.

REFERENCES:
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patent: 6384647 (2002-05-01), Logue
patent: 6756822 (2004-06-01), Kaviani
patent: 6838918 (2005-01-01), Kaviani
patent: 6847240 (2005-01-01), Zhou
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U.S. Appl. No. 11/170,020, filed Jun. 29, 2005, Samad, Maheen A., entitled, “A Circuit for and Method of Changing a Frequency in a Circuit”, 30 pgs. available from Xilinx, Inc. 2100 Logic Dr., SJ, CA 95124.
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