Enumerative DC-RLL constrained coding

Coded data generation or conversion – Digital code to digital code converters – To or from run length limited codes

Reexamination Certificate

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C341S058000

Reexamination Certificate

active

08054207

ABSTRACT:
Systems and methods are provided for encoding and decoding constrained codewords using an enumerative coding graph. The constrained codewords may contain run-length and DC level limits. The enumerative coding graph contains a series of states and each state has multiple branches that lead to other states. Each state in the enumerative coding graph is associated with at least two bits of an enumerative codeword. Configuring the structure of the graph and cardinalities associated with each state allows the encoder to generate a code that conforms to defined constraints.

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patent: 2008/0224905 (2008-09-01), Reznik

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