Signal generating apparatus and method thereof

Details Signal generating apparatus and method thereof Signal generating apparatus and method thereof

2007-03-23

2009-02-03

Wells, Kenneth B (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S147000, C375S376000

Reexamination Certificate

active

07486118

ABSTRACT:
A signal generating apparatus is disclosed for generating a synthesized signal according to an input signal. The signal generating apparatus includes a phase-locked loop device for generating the synthesized signal; a detecting device for detecting a reference signal to generate a calibrating signal; a filtering device for filtering the input signal and calibrating the input signal according to the calibrating signal to generate a filtered input signal; and a modulating device for modulating the filtered input signal in the normal operation mode and setting the dividing factor according to a first factor setting or a second factor setting in the calibration mode.

REFERENCES:
patent: 6724265 (2004-04-01), Humphreys
patent: 6806780 (2004-10-01), Fontaine et al.
patent: 7068112 (2006-06-01), Gotz et al.
patent: 7103337 (2006-09-01), Uozumi et al.
patent: 2006/0055466 (2006-03-01), Hirano et al.
patent: 2006/0245531 (2006-11-01), Leonowich et al.

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