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Systems and methods for enhanced data recovery in a solid state memory system

  • US 9,448,882 B2
  • Filed: 10/20/2015
  • Issued: 09/20/2016
  • Est. Priority Date: 09/26/2013
  • Status: Active Grant
First Claim
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1. A data processing system, the system comprising:

  • a solid state memory device; and

    a data processing circuit to access a data set from the solid state memory device, the data processing circuit including;

    a limited location re-read request circuit operable to identify a subset of elements of the data set derived from the solid state memory device exhibiting an increased likelihood of error, wherein identifying the subset of elements of the data set is based at least in part on selecting one or more locations from the subset of elements in the data set exhibiting one or more highest voltage variances from a first location to a subsequent location; and

    a soft information calculation circuit operable to calculate soft information indicating a probability that one or more elements of the data set derived from the solid state memory device represent data originally stored to the solid state memory device.

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