Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2006-11-07
2006-11-07
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S149000, C327S161000
Reexamination Certificate
active
07132866
ABSTRACT:
A method of controlling a delay-locked loop (DLL) module is disclosed. The method includes the steps of receiving a clock signal, comparing the received clock signal with a reference clock signal to determine whether a required phase difference between the signals is within specified tolerances, producing a correction signal when the required phase difference between the received clock and reference clock signals is not within the specified tolerances, utilizing the correction signal to change a delay setting and forwarding the correction signal to slave DLL modules in communication with the DLL module. The comparing, producing, utilizing and forwarding steps are performed only after a period of time has elapsed from a prior incidence of the comparing, producing, utilizing and forwarding steps, where the period of time is sufficient to allow the DLL to settle and no extraneous results are produced.
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Broadcom Corporation
Callahan Timothy P.
Cox Cassandra
Squire, Sanders and Dempsey, LLP.
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