Maximum likelihood decoding device, signal evaluating...

Details Maximum likelihood decoding device, signal evaluating... Maximum likelihood decoding device, signal evaluating...

2006-03-31

2009-10-13

Abraham, Esaw T (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S795000, C714S796000, C375S262000, C375S341000

Reexamination Certificate

active

07603611

ABSTRACT:
The invention relates to a maximum likelihood decoding device that performs Partial Response Maximum Likelihood decoding on a reproduced data signal from a recording media or another source. The device includes a Viterbi detector that performs bit detection from the reproduced signal. The Viterbi device can have variable setting for branch metric calculations based on the reference levels in the reproduced signal. The device measures and attempts to reduce the Euclidean distance between a maximum likelihood path selected by the Viterbi detector and a second path.

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