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Contactless type communication tag, portable tag reader for verifying a genuine article, and method for providing information of whether an article is genuine or not

  • US 8,009,017 B2
  • Filed: 03/30/2004
  • Issued: 08/30/2011
  • Est. Priority Date: 04/01/2003
  • Status: Expired due to Fees
First Claim
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1. A contactless communication tag that is attached to a product, the contactless communication tag comprising:

  • a contactless communication unit, which wirelessly exchanges data with a tag reader;

    a storing unit in which product information and encryption key related information corresponding to the product information are stored; and

    an encryption unit, which encrypts the product information based on the encryption key related information,wherein the contactless communication unit transmits the encrypted product information and encryption key specifying information to be used in the tag reader to specify the encryption key related information, to the tag reader.

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