Oscillating apparatus

Details Oscillating apparatus Oscillating apparatus

2008-10-24

2009-11-03

Cox, Cassandra (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C331S017000

Reexamination Certificate

active

07612590

ABSTRACT:
An oscillating apparatus is provided that includes: an integration circuit that outputs a control signal based on an integration value of two inputted voltage values; an oscillator that outputs an oscillation signal of a frequency that is based on the control signal; a phase comparator that outputs a phase difference signal of a pulse width that is in accordance with a phase difference between the oscillation signal and the reference signal, by comparing the oscillation signal with a reference signal of a predetermined frequency; a controlling circuits that controls the two inputted voltage values based on the phase difference signal, so as to approximate a phase difference between the oscillation signal and the reference signal to a predetermined reference phase difference; and a voltage stabilizing current that defines the two inputted voltages based on a predetermined reference voltage.

REFERENCES:
patent: 5546053 (1996-08-01), Ichimaru
patent: 5835544 (1998-11-01), Yoshimura et al.
patent: 5929677 (1999-07-01), Murata
patent: 5973525 (1999-10-01), Fujii
patent: 6025743 (2000-02-01), Abe
patent: 6765445 (2004-07-01), Perrott et al.
patent: 6771133 (2004-08-01), Lautzenhiser
patent: 2002/0051508 (2002-05-01), Tachimori

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