Method for improving stability and lock time for synchronous...

Details Method for improving stability and lock time for synchronous... Method for improving stability and lock time for synchronous...

2008-09-02

2010-10-12

Nguyen, Vincent Q (Department: 2831)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

C324S076610, C327S158000

Reexamination Certificate

active

07812593

ABSTRACT:
Delay-locked loops, signal locking methods and devices incorporating delay-locked loops are described. A delay-locked loop includes a forward loop path, a feedback loop path, and a phase detector. A test clock signal is temporarily switched to traverse the forward loop path and the feedback loop path. The phase detector is coupled to both the forward and feedback loop path circuits and is configured to periodically adjust responsive to a calculated loop delay of the test clock signal. The phase detector is thereafter able to stabilize at an improved rate.

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