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Systems and methods of storing data

  • US 9,318,166 B2
  • Filed: 12/19/2011
  • Issued: 04/19/2016
  • Est. Priority Date: 07/22/2011
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • in a data storage device with a controller and a memory, the memory including multiple storage elements, performing;

    generating, in the memory, a set of bits corresponding to a particular storage element, wherein the set of bits indicates a group of threshold voltage intervals, wherein a threshold voltage of the particular storage element corresponds to one of the threshold voltage intervals within the group, and wherein at least one threshold voltage interval within the group is separated from another threshold voltage interval within the group by an intervening threshold voltage interval that is not within the group; and

    sending the set of bits to the controller, wherein the set of bits includes a first hard bit that corresponds to a value read from the particular storage element and a first soft bit that corresponds to a reliability measure.

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