Coded data generation or conversion – Digital code to digital code converters – To or from run length limited codes
Reexamination Certificate
2007-12-25
2007-12-25
Young, Brian (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from run length limited codes
Reexamination Certificate
active
11431660
ABSTRACT:
In a data demodulating method and apparatus, and a code arranging method, a multiplexer multiplexes an input data stream divided by a predetermined length into a plurality of types of pseudo random data streams using multiplexed information of predetermined bits by applying a predetermined multiplexing method to each of the pseudo random data streams. An encoder RLL-modulates the plurality of types of pseudo random data streams to create a modulated code stream including a minimum of DC components. The multiplexer generates the random data streams by inconsecutively scrambling the input data stream using the multiplexed information. The encoder weak DC-free RLL-modulates each of the multiplexed data streams without using a DC control sub code conversion table to which additional bits are added and provides a code stream including a minimum of DC components among multiplexed, RLL-modulated code streams.
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Jung KiuShae
Kim Jin-han
Shim Jae-seong
Stein, McEwen & Bui LLP
Young Brian
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