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INTERACTIVE OPTICAL CARDS AND OTHER HAND-HELD DEVICES WITH INCREASED CONNECTIVITY

  • US 20080034387A1
  • Filed: 04/10/2007
  • Published: 02/07/2008
  • Est. Priority Date: 01/22/1999
  • Status: Active Grant
First Claim
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1. A method comprising:

  • optically receiving on a hand-held device a modulated video signal, the modulated video signal including auxiliary data modulated in an active portion of the modulated video signal;

    detecting on the hand-held device the auxiliary data contained within the modulated video signal; and

    sequentially illuminating a series of light-emitting devices on the hand-held device in response to detection of the auxiliary data to provide a representation of a value available for redemption by use of the hand-held device.

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