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Clear contactless card

  • US 7,607,583 B2
  • Filed: 10/13/2007
  • Issued: 10/27/2009
  • Est. Priority Date: 07/10/2001
  • Status: Expired due to Fees
First Claim
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1. A card, a through portion of which is substantially transmissive to visible light, comprising:

  • a machine recognizable compound containing an infrared blocking material, said machine recognizable compound substantially uniformly covering said card that is substantially transmissive to visible light; and

    a first transponder associated with said card, said first transponder responsive to a first RF interrogation signal.

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  • 5 Assignments
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