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Use of hashing function to distinguish random and repeat errors in a memory system

  • US 8,347,154 B2
  • Filed: 09/21/2010
  • Issued: 01/01/2013
  • Est. Priority Date: 09/21/2010
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • detecting single-bit errors in a memory module;

    identifying each single-bit error as a random error or a repeat error;

    counting each identified random error and each identified repeat error occurring in a time interval; and

    generating an alert in response to a number of identified random errors reaching a random-error threshold or a number of identified repeat errors reaching a repeat-error threshold during the time interval, wherein the repeat-error threshold is lower than the random-error threshold.

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