Forward error correction coding
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United States of America Patent
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Jan 27, 2009
Grant Date -
Mar 22, 2007
app pub date -
Apr 30, 2004
filing date -
Apr 30, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A forward error correcton coding method comprises a generalized concatenated code comprising a plurality of outer component codes and a plurality of inner component codes. The outer components codes comprise Reed-Solomon codes and a plurality of binary codes of equal length but varying rates. The inner component codes have a nested structure and are defined by the sum of disjoint Bose-Chaudhuri-Hocquenghem (BCH) codes. The inner and outer component codes are selected such that the product of the minimum Hamming distances of the inner and outer component codes are as equal as possible. Moreover, the component codes are selected by matching cyclotomic cosets of inner BCH codes and type and multiplicity of outer codes.
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