Error correction capability improvement in the presence of hard bit errors
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United States of America Patent
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Jul 18, 2017
Grant Date -
Feb 19, 2015
app pub date -
Oct 29, 2014
filing date -
Mar 23, 2012
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Abstract
A soft output detector is programmed with a first set of parameters. Soft information is generated according to the first set of parameters, including likelihood information that spans a maximum likelihood range. Error correction decoding is performed on the soft information generated according to the first set of parameters. In the event decoding is unsuccessful, the soft output detector is programmed with a second set of parameters, soft information according is generated to the second set of parameters (including likelihood information that is scaled down from the maximum likelihood range), and error correction decoding is performed on the soft information generated according to the second set of parameters.
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