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Reading codes of RFID tags incoming at premises and removing them later as they exit

  • US 7,696,882 B1
  • Filed: 01/24/2008
  • Issued: 04/13/2010
  • Est. Priority Date: 02/21/2007
  • Status: Active Grant
First Claim
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1. A Radio Frequency Identification (RFID) reader system for use in premises having an enclosure and a plurality of items tagged with item RFID tags within the enclosure, comprising:

  • one or more antennas for reading at least one incoming code of a personal RFID tag carried by a person, as the person is entering the enclosure, and for reading a plurality of exiting codes that include the incoming code and item codes from item RFID tags of some of the items being transported by the person, as the person prepares to leave the enclosure; and

    a processor for deriving actionable codes by removing the incoming code from the exiting codes, and for causing an output transmission to be generated responsive to the actionable codes.

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