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MOBILE DEVICE WITH TRANSACTION CARD IN ADD-ON SLOT

  • US 20110053644A1
  • Filed: 11/08/2010
  • Published: 03/03/2011
  • Est. Priority Date: 02/22/2005
  • Status: Active Grant
First Claim
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1. A transaction system comprising:

  • a mobile phone having an add-on slot; and

    an electronic transaction card compatible with the add-on slot, wherein the electronic transaction card includes circuitry to produce a time-varying magnetic field to transmit transaction data to a reader device.

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