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Authenticable optical disc, system for authenticating an optical disc and method thereof

  • US 7,218,589 B2
  • Filed: 11/24/2003
  • Issued: 05/15/2007
  • Est. Priority Date: 11/24/2003
  • Status: Expired due to Fees
First Claim
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1. An optical disc comprising:

  • a) a reflective layer;

    b) an optically transparent substrate, wherein the substrate is disposed between the reflective layer and a light incident surface of the optical disc;

    c) a data layer disposed between the substrate and the reflective layer, the data layer including a predetermined signature; and

    d) at least one measurable feature, wherein the at least one feature is quantitatively compared to the predetermined signature for authenticating the optical disc, and wherein the at least one feature creates a correctable error resulting in no loss in data fidelity when the data layer is read.

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  • 5 Assignments
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