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Object tracking apparatus and method

  • US 6,331,817 B1
  • Filed: 05/31/2000
  • Issued: 12/18/2001
  • Est. Priority Date: 05/31/2000
  • Status: Active Grant
First Claim
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1. A tracking apparatus comprising:

  • a tracked object interrogator producing a tracked object identifier output;

    a location interrogator producing an apparatus location output corresponding to its proximity relative to a location transducer; and

    an alarm which annunciates for a predetermined combination of the apparatus location output and the tracked object identifier output.

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