Coded data generation or conversion – Digital code to digital code converters – To or from run length limited codes
Reexamination Certificate
2006-09-26
2006-09-26
Nguyen, Linh (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from run length limited codes
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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Hsu Che-Kuo
Ma Chang-Po
Yang Yung-Chi
Industrial Technology Research Institute
Nguyen Linh
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