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Wearable device transaction system

  • US 9,004,361 B2
  • Filed: 08/22/2012
  • Issued: 04/14/2015
  • Est. Priority Date: 02/22/2005
  • Status: Active Grant
First Claim
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1. A transaction system comprising:

  • a wearable device having an add-on slot to accept an electronic transaction card; and

    an electronic transaction card with smartcard circuitry and circuitry coupled to the smartcard circuitry to produce a time varying magnetic field, wherein the circuitry to produce a time varying magnetic field has dimensions less than 25% of a standard credit card, the electronic transaction card including an interface compatible with the add-on slot of the wearable device.

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