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US 2015/0089330 A1Published application
Systems and Methods for Enhanced Data Recovery in a Solid State Memory System
AssigneeLSI Corporation
InventorsHaitao Xia, Fan Zhang, Shu Li, Jun Xiao
Life of this patent
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Abstract
Systems and method relating generally to data processing, and more particularly to systems and methods for recovering data from a solid state memory.
Claims20
A data processing system, the system comprising:
- a solid state memory device;
- and
- a data processing circuit including:
- a soft information calculation circuit operable to calculate soft information indicating a probability that one or more elements of a data set derived from the solid state memory device represent data originally stored to the solid state memory device;
- and
- a data decoding circuit operable to apply a data decoding algorithm to the data set derived from the solid state memory device guided by the soft information.
3 more elements
A method for recovering data, the method comprising:
- accessing a data set from a solid state storage device;
- using a data decoding circuit to apply a data decoding algorithm to the data set to yield a decoded output, wherein the decoded output includes at least one error;
- identifying at least one critical location in the data set;
- estimating a voltage associated with the data in the data set corresponding to the critical location;
- calculating soft information corresponding to the critical location based at least in part on the estimated voltage;
- and
- re-applying the data decoding algorithm to the data set guided by the soft information to yield an updated decoded output.
4 more elements
An electronic device, the electronic device including:
- a storage system including:
- a solid state memory device;
- and
- a data processing circuit including:
- a soft information calculation circuit operable to calculate soft information indicating a probability that one or more elements of a data set derived from the solid state memory device represent data originally stored to the solid state memory device;
- a data decoding circuit operable to apply a data decoding algorithm to the data set derived from the solid state memory device guided by the soft information;
- and
- an application system operable to perform a defined function using data accessed from the storage system.
5 more elements
Dependencies are inferred from the claim text.