Compact digital timing recovery circuits, devices, systems...

Details Compact digital timing recovery circuits, devices, systems... Compact digital timing recovery circuits, devices, systems...

2005-08-30

2005-08-30

Tran, Khai (Department: 2637)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S327000, C327S159000

Reexamination Certificate

active

06937683

ABSTRACT:
A digitally implemented timing recovery circuit for recovering a clock signal from an input bit stream. The recovery circuit comprising an edge detector for detecting a transition from “0” to “1” or “1” to “0” in the input bit stream, a phase counter having a plurality of registers indicative of the phase counter transition state, and a loop counter having a plurality of registers indicative of the loop counter transition state. When the phase counter reaches a particular transition state, a recovered clock pulse is enabled. The phase counter is preferably non-linear to optimize the circuit.

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