Error detection/correction and fault detection/recovery – Pulse or data error handling – Data pulse evaluation/bit decision
Reexamination Certificate
2006-08-01
2006-08-01
Decady, Albert (Department: 2138)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Data pulse evaluation/bit decision
C714S814000
Reexamination Certificate
active
07085970
ABSTRACT:
A method, in an oversampling clock and data recovery system, for detecting that sampling is stuck taking place at a data edge, by detecting a data edge in an early or a late region relative to a good region and incrementing a stuck early or stuck late counter; and if one counter reaching a maximum, setting a condition indicating that sampling is stuck taking place at a data edge. If a data edge is detected in the good region, or in each of an early and a late region in a single data period, the stuck counters are reset to zero. The detection of which stuck counter has reached a maximum can cause the moving of a sampling clock forward or backward, ending when a data edge occurs in a good region, or in each of an early region and a late region in a single data period.
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Ainscow Alexander H.
Garlett Jon D.
Modaress-Razavi Bobak
Nicholls Gareth J.
Norman Vernon R.
Abate Joseph P.
De'cady Albert
Tabone, Jr. John J.
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