Pulse or digital communications – Multilevel – Bipolar signal
Patent
1995-05-26
1997-05-20
Chin, Stephen
Pulse or digital communications
Multilevel
Bipolar signal
371 571, H04L 2534
Patent
active
056319282
ABSTRACT:
An enhanced B3ZS decoder which substantially improves error-multiplication performance is disclosed. A string of four bits is examined to detect whether it satisfies two specific criteria. The first criterion is that every valid zero-substitution pattern is immediately preceded by a "one" bit. The second criterion is that successive zero-substitution BPVs are of opposite polarity. When these criteria are met, the appropriate bits are set to zero, effectively replacing the identified pattern with the original three-zero pattern.
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Chin Stephen
Kim Kevin
NEC America Inc.
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