Owner Avid Identification Systems, Inc.

Inventors Ward, Timothy Jon; Ward, William H

Agent Spruson & Ferguson

Pub. Number AU-B-2002353975

PCT Number PCT/US02/35167

PCT Pub. Number WO2003/040950

Priority 60/337,996 02.11.01 US

Filing date 1 November 2002

Wipo publication date 19 May 2003

Acceptance publication date 6 December 2007

G06K 17/00 (2006.01) Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups , e.g. automatic card files incorporating conveying and reading operations

G06K 7/08 (2006.01) Methods or arrangements for sensing record carriers - by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes

H01Q 1/22 (2006.01) Details of, or arrangements associated with, aerials - by structural association with other equipment or articles

H01Q 7/00 (2006.01) Loop aerials with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

H04B 1/59 (2006.01) Details of transmission systems, not covered by a single one of groups - Responders

H04B 5/02 (2006.01) Near-field transmission systems, e.g. inductive loop type - using transceiver