1
John P Volpi, Jimmy D Laferney, William C Montgomery: Interrogator and interrogation system employing the same. Caducys L L C, Slater & Matsil L, March 28, 2006: US07019650 (115 worldwide citation)

The present invention is directed to an interrogator, method of discerning metal and radio frequency identification (RFID) objects, and an interrogation system employing the same. In one embodiment, the interrogator includes a metal sensing subsystem configured to provide a first signal having a sig ...


2
Volpi John P, Laferney Jimmy D, Montgomery William C: An interrogator and interrogation system employing the same. Caducys L L C, December 7, 2005: EP1602057-A2

The present invention is directed to an interrogator, method of discerning metal and radio frequency identification (RFID) objects, and an interrogation system employing the same. In one embodiment, the interrogator includes a metal sensing subsystem configured to provide a first signal having a sig ...


3
Volpi John, Scott Logan, Mcmurry Eric: Interrogator and interrogation system employing the same. Caducys L L C, January 3, 2007: EP1738295-A1

A control and processing system for use with an interrogator and an interrogation system employing the same. In one embodiment, the control and processing system includes a correlation subsystem 1905 having a correlator 1930 that correlates a reference code 1915 with a reply code 1925 from a radio f ...