Patents Assigned to ZIH Corp., a Delaware Corporation with its principal office in Hamilton, Bermuda
  • Patent number: 6848616
    Abstract: A system having an RFID transceiver is adapted to communicate exclusively with a single RFID transponder located in a predetermined confined transponder target area. The system includes a magnetic coupling device comprising a magnetic flux generator responsive to a radio frequency input signal and a magnetic field pattern former. The pattern former is configured to collect flux produced by the flux generator and to form a field pattern in the location of the transponder target area. The system establishes, at predetermined transceiver power levels, a mutual magnetic coupling which is selective exclusively for a single transponder located in the transponder target area.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: February 1, 2005
    Assignee: ZIH Corp., a Delaware Corporation with its principal office in Hamilton, Bermuda
    Inventors: Boris Y. Tsirline, Clive P. Hohberger, Robert Gawelczyk