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Method of manufacturing a limited use data storing device

  • US 7,748,012 B2
  • Filed: 09/09/2005
  • Issued: 06/29/2010
  • Est. Priority Date: 05/09/2005
  • Status: Active Grant
First Claim
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1. A method of manufacturing a data storage device comprising:

  • storing primary read-support information in a first data storage region of the data storage device, the first data storage region having an expected lifetime limit during which the primary read-support information can be read from the first data storage region with a first type of data read system;

    storing secondary read-support information in a second data storage region of the data storage device, the secondary read-support information readable from the second data storage region with a second type of data read system but not with the first type of data read system;

    storing data of interest in the second data storage region, the data of interest readable with support of the primary read-support information by the first type of data read system and readable with support of the secondary read-support information by the second type of data read system.

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