Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2004-11-22
2008-10-21
Baker, Stephen M (Department: 2112)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S796000
Reexamination Certificate
active
07441177
ABSTRACT:
An information reproduction apparatus using maximum likelihood decoding for calculating likelihood of a value of a reproducing signal to a plurality of reference values, the reproducing signal obtained from a recording medium, to decode the reproducing signal on the basis of the likelihood, the apparatus includes a circuit for detecting the reproducing signal from the recording medium, a circuit for detecting the reference values corresponding to a characteristic of the reproducing signal, and a correction circuit for correcting the reproducing signal or the calculated likelihood according to the detected reference values.
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Baker Stephen M
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
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