G - Physics – 06 – K
Patent
G - Physics
06
K
352/10.11
G06K 7/08 (2006.01) B42D 15/10 (2006.01) G06K 1/12 (2006.01) G06K 19/02 (2006.01) G06K 19/06 (2006.01) G11B 15/60 (2006.01) G11B 23/02 (2006.01)
Patent
CA 1047163
MAGNETIC TYPE INFORMATION CARD AND METHOD AND APPARATUS FOR ENCODING AND READING Abstract Disclosed herein is a flexible resilient magnetic particle type information card capable of correctly reading information thereon after such card has been bent double on itself and creased, said card comprising a flexible base, a layer of uniformly distributed magnetic particles thereon, and a flexible overlayer of nonmagnetic material, said overlayer having a thickness of at least 2 mils, said layer of magnetic particles being magnetically encoded, the magnetic flux transitions of such encoding being at least 0.02 inch apart and said magnetic particle layer being enclosed between the base layer and overlayer and spaced from the edges of the card. Also disclosed is a method of storing information in binary data form comprising magnetically recording information on a magnetic strip that has an overlayer of at least 2 mils by inducing transitions in the magnetization of the strip at a minimum spacing of 0.02-0.1 inch. A magnetic information card and card reader system are also disclosed comprising the magnetic information card described above in combination with a card reader having a slot accom- modating the card in a tight but not binding fit and a structural portion of the reader having a hole forming a relief opposite the reading head of the reader.
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