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Magnetic stripe card with dynamic numbers

  • US 20060192006A1
  • Filed: 04/28/2006
  • Published: 08/31/2006
  • Est. Priority Date: 12/17/2003
  • Status: Active Grant
First Claim
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1. A card comprising:

  • a magnetic stripe configured to store magnetic fields indicative of a dynamic number;

    a plurality of magnetic write heads located under the magnetic stripe and configured to generate the magnetic fields to write bits of the dynamic number onto the magnetic stripe; and

    data circuitry configured to generate the dynamic number and provide a portion of the bits of the dynamic number to the plurality of the magnetic write heads.

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