Detection in the presence of media noise

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

2005-08-16

2005-08-16

Torres, Joseph D. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S794000, C375S341000

Reexamination Certificate

active

06931585

ABSTRACT:
A signal detector to detect data in an input signal. The signal detector includes a Viterbi-like detector to generate a most likely path corresponding to the data in the input signal. A linear post-processor 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 non-linear post-processor 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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