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Method and apparatus for article authentication

  • US 7,664,257 B2
  • Filed: 02/28/2006
  • Issued: 02/16/2010
  • Est. Priority Date: 08/24/2001
  • Status: Expired due to Term
First Claim
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1. A media holder for use with a media processor, said media holder comprising:

  • a spool comprising;

    a winding drum defining an axis and a first diameter,a flange defining a second diameter that is larger than the first diameter;

    an antenna located on the flange, wherein said antenna comprises at least one arcuate portion extending around the axis of the winding drum; and

    a memory located on the flange and disposed in communication with said antenna, said memory configured to store an identification number and an authentication number, wherein said authentication number is at least partially an encrypted transformation of said identification number.

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