The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2013
Filed:
Oct. 04, 2011
Mark L. Benedikt, Kirkland, WA (US);
Mark L. Benedikt, Kirkland, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Authenticating the source of digital media is performed by using unique, randomly generated variably encoded frequency patterns to create mastering specific, profiles for sets end user media which can be verified by a manufacturer. A method for verifying the authenticity of an optical storage device includes the steps of: reading a randomly generated signature key value for the optical storage device; determining manufacturing information for the optical storage device; and matching read randomly generated signature key values and manufacturing information with known valid key the to determine the authenticity of the device.
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