Locked-loop integrated circuits having speed tracking...

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

Reexamination Certificate

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Details

C327S157000

Reexamination Certificate

active

11264111

ABSTRACT:
Clock generators include phase-locked and delay-locked loop integrated circuits that support efficient high speed testing of clock frequencies. An integrated circuit device is provided with a clock signal generator having at least one delay element therein that is responsive to a control signal. A speed tracking circuit is also provided. This speed tracking circuit is configured to generate a signal having a measurable characteristic that tracks changes in a property of the control signal that influences a delay of the at least one delay element.

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