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Mobile device with time-varying magnetic field and single transaction account numbers

  • US 9,208,423 B1
  • Filed: 08/23/2015
  • Issued: 12/08/2015
  • Est. Priority Date: 02/22/2005
  • Status: Active Grant
First Claim
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1. A mobile phone comprising:

  • circuitry to produce a time-varying magnetic field that mimics a swipe of a magnetic card; and

    a processor coupled to the circuitry to cause the circuitry to produce a time-varying magnetic field that represents a single transaction account number.

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