Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2007-08-28
2007-08-28
Payne, David C. (Department: 2611)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C375S376000, C327S147000, C327S156000, C327S163000
Reexamination Certificate
active
10322717
ABSTRACT:
A clock signal regeneration system and method to adjust the phase of a frequency-locked clock signal is provided. The system includes a numerically controlled oscillator, a clock source, and an adder. In one embodiment, additional components are included in the system to ensure that underflow or overflow of the numerically controlled oscillator is prevented. In another embodiment, additional components are included to ensure that output pulses from the numerically controlled oscillator do not occur within a minimum time interval. The method includes deriving a phase adjustment factor, adding the phase adjustment factor to a frequency control word, providing the modified frequency control word to a numerically controlled oscillator and generating a phase shifted, frequency-locked output signal.
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Cavallo James P.
Lee Tak K.
Putnam Jeffrey S.
Broadcom Corporation
Ettehadieh Aslan
Sterne Kessler Goldstein & Fox P.L.L.C.
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