Patents Represented by Attorney, Agent or Law Firm Robert A. Bartzlaff
  • Electronic tag position detection using radio broadcast
    Patent number: 6542083
    Abstract: A system for identification and tracking of tags distributed in a room, wherein the system includes an electromagnetic pulse generator to produce a local electromagnetic spike, a tag reactive to the local electromagnetic spike to provide a data signal, a data receiver for receiving the data signal, and a tag tracking system receiving input from the electromagnetic pulse generator and the data receiver, the tag tracking system storing state records of position and informational content of the tag.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 1, 2003
    Assignee: Xerox Corporation
    Inventors: Edward A. Richley, Roy Want, Kenneth P. Fishkin, Beverly L. Harrison, Anuj Uday Gujar