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Universal credit card apparatus and method

DC
  • US 5,834,747 A
  • Filed: 02/19/1997
  • Issued: 11/10/1998
  • Est. Priority Date: 11/04/1994
  • Status: Expired due to Term
First Claim
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1. An apparatus for providing simulation of multiple sets of magnetic spatial patterns for use by a magnetic pattern reading device, including in combination:

  • a carrier having a long axis, a short axis perpendicular to said long axis, and a reading surface coplanar to said long axis and short axis;

    a control circuit including memory for storing data from which said magnetic spatial patterns may be reconstructed, said control circuit located on said carrier, said memory for storing data from which said magnetic spatial patterns may be reconstructed;

    a programmable magnetic spatial pattern creating device comprising an elongate magnetic strip oriented principally along said carrier long axis and said magnetic strip having a plurality of periodic extensions to said reading surface, said extensions oriented principally perpendicular to said carrier long axis and positioned between said elongate magnetic strip and said reading surface, a plurality of electromagnetic coils located on said carrier magnetic strip and positioned between said extensions and capable of reconstructing said magnetic spatial patterns;

    wherein said control circuit is responsive to an external stimulus to cause said programmable magnetic spatial pattern creating device to reconstruct a known one of said magnetic spatial patterns in response to data from said memory, wherein said magnetic spatial pattern is maintained at a constant value while in use by said magnetic pattern reading device.

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