Adaptive frequency clock generation system

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing

Reexamination Certificate

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Details

C327S156000

Reexamination Certificate

active

07042259

ABSTRACT:
A clock generating apparatus is provided that includes a first phase lock loop device powered by an analog (or fixed) power supply voltage and a second phase lock loop device powered by the analog power supply voltage and a digital power supply voltage. The second phase lock loop device to output a clock signal having an adaptive frequency based on the digital power supply voltage.

REFERENCES:
patent: 6218876 (2001-04-01), Sung et al.
patent: 6320424 (2001-11-01), Kurd et al.
patent: 6542013 (2003-04-01), Volk et al.
patent: 6570456 (2003-05-01), Mano et al.
patent: 6621314 (2003-09-01), Krishnamurty
patent: 6816019 (2004-11-01), Delbo' et al.
patent: 2003/0137328 (2003-07-01), Kurd et al.
patent: 2003298417 (2003-10-01), None

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