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System for authenticating objects

  • US 7,900,832 B2
  • Filed: 01/31/2010
  • Issued: 03/08/2011
  • Est. Priority Date: 05/18/2004
  • Status: Expired due to Fees
First Claim
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1. A system for authenticating an object, the system comprising:

  • a sensing device for sensing coded tags printed on the object, each coded tags encoding an identity of the object and a signature fragment, an entire signature being encoded in a plurality of coded tags;

    a processor for determining a signature fragment identifier associated with respective signature fragments, for generating the entire signature from the signature fragments and associated signature fragment identifiers, for decrypting the entire signature to obtain a generated identity;

    means for comparing the identity encoded by the coded tags with the generated identity; and

    means for authenticating the object using the results of the comparison.

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