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Object tracking in an enclosure

  • US 7,753,272 B2
  • Filed: 01/12/2007
  • Issued: 07/13/2010
  • Est. Priority Date: 04/23/2004
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • scanning an interior space of an enclosure, the enclosure having at least one radio frequency identification (RFID) tag associated with at least one switch, and at least one object associated with the at least one switch, the RFID tag configured to communicate at least one RFID signal to a reader; and

    shielding the at least one RFID tag when the at least one object is removed from the at least one switch thereby substantially blocking RFID signal transmission between the RFID tag and the reader.

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