Detection in the presence of media noise

Details Detection in the presence of media noise Detection in the presence of media noise

2011-03-29

2011-03-29

Lamarre, Guy J (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S794000, C375S341000

Reexamination Certificate

active

07917836

ABSTRACT:
A signal detector comprises a filter that equalizes data in an input signal to a primary target. A detector is matched to the primary target and generates a most likely path corresponding to the data in the input signal. A post-processor is matched to one of the primary target and a secondary target, determines at least one most likely error event in the most likely path, and generates revised paths based on the at least one most likely error event. A processor is matched to the secondary target, computes path metrics corresponding to each of the revised paths as a function of a non-linear noise model and selects one of the revised paths based on the path metrics.

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