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Storage device and method using parameters based on physical memory block location

  • US 8,874,825 B2
  • Filed: 06/30/2009
  • Issued: 10/28/2014
  • Est. Priority Date: 06/30/2009
  • Status: Active Grant
First Claim
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1. A method for operating a memory, the method comprising:

  • at a data storage device that includes a memory and a table configured to map a plurality of block identifiers to a plurality of parameter sets, performing;

    reading data located at a first physical block of the memory to acquire a first parameter set that includes a first parameter value and a second parameter value, the first parameter value corresponding to a physical location-dependent parameter value that is at least partially based on a physical location of the first physical block within the memory and that is to be used in an error decoding operation, and the second parameter value corresponding to a time-dependent parameter value;

    adding an entry to the table, the entry corresponding to the first parameter set;

    tagging the first physical block to the entry;

    reading data from the first physical block according to the first parameter value and the second parameter value; and

    performing the error decoding operation on the data using the first parameter value.

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