Prejudging current state in a decoder for coded signal processin

Details Prejudging current state in a decoder for coded signal processin Prejudging current state in a decoder for coded signal processin

1994-02-17

1995-07-04

Gordon, Paul P.

Excavating

341 59, G06F 1110

Patent

active

054307457

ABSTRACT:
Decoder for processing digital sample values corresponding to an incoming read signal representative of coded binary data. Functional expressions of digital sample values are precomputed for a preselected number of sample values ahead of a current sample value. To provide binary decision outputs, preselected functional expressions are compared against binary representations of corresponding thresholds that are conditioned by the sign of a selected functional expression comprising at least one preselected digital sample value. These outputs, the sign of the selected functional expression, the current value and previous value of decoded data, and the current value of detected phase, are all used to determine the next value of decoded data and next value of detected phase. These next values become the current values of decoded data and detected phase for the next clock cycle. The binary representations input to the comparators and the binary decision outputs of the comparators are inverted only if the selected functional expression has a preselected sign.

REFERENCES:
patent: 4945538 (1990-07-01), Patel
patent: 5243605 (1993-09-01), Lekmine et al.
patent: 5282216 (1994-01-01), Patel et al.
patent: 5291500 (1994-03-01), Patel et al.
patent: 5311178 (1994-05-01), Pan et al.

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