In accordance with the teachings described herein, systems and methods are provided for approximating the location of an RFID tag in an RFID system. The RFID system may include a plurality of receivers that receive RF signals from the RFID tag. Tag read count data for two or more of the plurality of...http://www.google.com/patents/US7423516?utm_source=gb-gplus-sharePatent US7423516 - Systems and methods for approximating the location of an RFID tag
