Method and means for detecting partial response waveforms using a modified dynamic programming heuristic
US5430744A · kind A · utility
29Cited by
4References
9Claims
0Family size
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Key dates
| Filing date | Sep 30, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Sep 30, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/6502
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Viterbi decoder having a recursive processor modified to process each node in a trellis of a partial response coded signal to shift the branch metric additions over the node to effectuate compare, select, add operation order on the predecessor survivor metrics terminating in that node, to compare the metrics of the predecessor sequences terminating in the node, to select a survivor sequence, and to add the shifted branch metrics to the metric of the selected survivor sequence.
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