Coded data generation or conversion – Digital code to digital code converters – To or from run length limited codes
Reexamination Certificate
2007-11-06
2007-11-06
Barnie, Rexford (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from run length limited codes
C341S058000
Reexamination Certificate
active
11140778
ABSTRACT:
Techniques for encoding N-binary symbol (NB) source data vectors into M-binary symbol (MB) encoded vectors, M>N>0, are provided. Techniques for decoding are also provided. Exemplary coding and decoding apparatuses are presented, as is an exemplary 8B/10B encoding scheme. Encoded vectors may be disparity dependent or disparity independent. In assigning encoded vectors that have one or more individual binary symbol changes compared with their source data vectors, preference can be given to encoded vectors that are balanced and disparity independent. Whole-vector complementation and individual changes of one or more binary symbols can advantageously be performed substantially in parallel.
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Barnie Rexford
International Business Machines - Corporation
Lauture Joseph
Ryan & Mason & Lewis, LLP
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