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Smart card having an optical communication circuit and a method for use thereof

  • US 20040069853A1
  • Filed: 08/14/2003
  • Published: 04/15/2004
  • Est. Priority Date: 02/15/2001
  • Status: Abandoned Application
First Claim
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1. A method for communicating data to a data transaction device having an optical sensor, the method comprising the steps of:

  • (a) displaying on a predetermined window of a display device a modulated light beam that is modulated with said data, and (b) placing an identifiable area of the data transaction device containing the optical sensor against the predetermined window of the display device so that the optical sensor receives the modulated light beam.

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