Interrogator and interrogation system employing the same

  • US 7,557,711 B2
  • Filed: 05/11/2007
  • Issued: 07/07/2009
  • Est. Priority Date: 03/03/2003
  • Status: Active Grant
First Claim
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1. An interrogation system, comprising:

  • a sensing subsystem configured to provide a signal having a signature representing a presence of a radio frequency identification (RFID) object;

    a control and processing subsystem configured to discern a presence of said RFID object from said signal; and

    a single position sensor configured to provide a location of said RFID object in accordance with a movement of said position sensor with respect to said RFID object.

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