Method and unit for deskewing signals

Details Method and unit for deskewing signals Method and unit for deskewing signals

2006-10-10

2006-10-10

Kerveros, James C. (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Skew detection correction

Reexamination Certificate

active

07120838

ABSTRACT:
A clock deskew method includes receiving a data signal and a clock signal, processing the data signal to generate a jitter characterization parameter, shifting the clock signal by about 90° from the jitter characterization parameter to generate a sampling clock signal, and sampling the data signal with the sampling clock signal to generate a deskewed data signal. A clock deskew unit includes a clock unit, a sampling unit, and a deskew unit. The deskew unit includes a jitter characterization unit that generates a jitter characterization parameter. The jitter characterization parameter establishes a phase location for aligning a clock signal. Shifting the clock signal by about 90° from the phase location of the jitter characterization parameter provides a location for sampling a data signal to generate a deskewed data signal.

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