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Interrogator and interrogation system employing the same

  • US 10,628,645 B2
  • Filed: 01/20/2019
  • Issued: 04/21/2020
  • Est. Priority Date: 03/03/2004
  • Status: Active Grant
First Claim
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1. An interrogator comprising a control and processing system operable on a processor configured to:

  • load a reference code including at least a plurality of bits of a reply code from a radio frequency identification (RFID) tag associated with an RFID object;

    produce an excitation signal for said RFID tag;

    receive at least a portion of said reply code from said RFID tag in response to said excitation signal; and

    compare said reference code to said at least said portion of said reply code from said RFID tag to verify a presence of said RFID tag.

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