Soft information generation for memory systems
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United States of America Patent
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Jun 16, 2015
Grant Date -
May 9, 2013
app pub date -
Aug 31, 2012
filing date -
Nov 7, 2011
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Abstract
Implementations include systems, methods and/or devices suitable for use in a memory system that use error control codes to improve the reliability with which data can be stored and read. Some implementations include systems, methods and/or devices enabled to generate and utilize soft information for decoding encoded data read from a storage medium. More specifically, some implementations utilize a collection of characterization vectors that include soft information values for bit-tuples that may be read from the storage medium for various combinations of the storage medium characterization parameter values. Some implementations are enabled to determine and utilize read comparison signal values associated with one or more storage medium characterization parameter values. And some implementations are enabled to determine and utilize shifted read comparison signal values associated with one or more storage medium characterization parameter values and an identified error condition.
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