Self-adjusting clock generator with stable frequency output

Details Self-adjusting clock generator with stable frequency output Self-adjusting clock generator with stable frequency output

2008-05-13

2008-05-13

Lee, Benny (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S00100A, C327S102000

Reexamination Certificate

active

07372338

ABSTRACT:
A self-adjusting clock generator is disclosed. The self-adjusting clock generator comprises a voltage control oscillator for generating a frequency output, a frequency to voltage converter for converting the frequency output into a voltage output, and a comparator for comparing the voltage output with a reference voltage in order to produce a comparison voltage. The produced comparison voltage is provided as feedback to the voltage control oscillator such that the frequency output generated by the voltage control oscillator is adjusted, based on the comparison voltage, to converge into a stable frequency output.

REFERENCES:
patent: 3466526 (1969-09-01), Cole
patent: 3824410 (1974-07-01), Funaki et al.
patent: 5212459 (1993-05-01), Ueda et al.
patent: 6281495 (2001-08-01), Kitamura
patent: 6509802 (2003-01-01), Kasperkovitz
R. Achenbach et al., “A Digitally Temperature-Compensated Crystal Oscillator,”IEEE J. of Solid-State Circuits, vol. 35, No. 10 (Oct. 2000), pp. 1502-1506.

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