Method and device of converting data words into code words

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

Reexamination Certificate

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C341S055000, C341S102000

Reexamination Certificate

active

07113114

ABSTRACT:
Disclosed are a method and device of converting data words into code words. This method inserts 2pp guided bits before inputting each set of data words, performs a pre-defined operation, and generates 2pdata sequences with different guided bits. It chooses q data sequences from the 2pdata sequences for coding, performs a run length limited (RLL) coding with a coding rate m
, and generates q (d, k) constrained code word sequences. Finally, an optimal (d, k) constrained code word sequence is selected from the q (d, k) constrained code word sequences. The device reduces the circuitry of the RLL coding applied guided scrambling without losing the control of direct current and low frequency components.

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