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Restore tracking system for DRAM

  • US 6,389,505 B1
  • Filed: 11/19/1998
  • Issued: 05/14/2002
  • Est. Priority Date: 11/19/1998
  • Status: Expired due to Fees
First Claim
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1. A restore tracking system for reducing a number of refresh actions needed to maintain data entries in a DRAM, comprising:

  • restore tracking means for recording and updating a refresh status of one or more of said data entries in said DRAM; and

    control logic means, coupled to said restore tracking means, for refreshing said one or more of said data entries having an expired status.

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