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Data structure encoded on a surface of an object

  • US 20040056105A1
  • Filed: 08/20/2003
  • Published: 03/25/2004
  • Est. Priority Date: 07/15/1997
  • Status: Active Grant
First Claim
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1. A data structure encoded on a surface of an object, said data structure comprising a plurality of block data regions, each of said block data regions including:

  • an encoded data region containing data in encoded form;

    a clock mark structure located adjacent a first peripheral portion of said encoded data region; and

    a target structure located adjacent said clock mark structure;

    wherein each of said block data regions further includes an orientation data structure indicative of an orientation of said data structure.

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