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:
Mar. 23, 2010
Filed:
Mar. 07, 2005
Donald E. Leake, Jr., Vestal, NY (US);
Jeffrey B. Lotspiech, Henderson, NV (US);
Stefan Nusser, Los Altos, CA (US);
Donald E. Leake, Jr., Vestal, NY (US);
Jeffrey B. Lotspiech, Henderson, NV (US);
Stefan Nusser, Los Altos, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A protected content distribution system utilizes media-based copy protection to support online distribution of protected content in a secure and legitimate fashion. Using a media-based copy protection scheme based on broadcast encryption, the protected content distribution system realizes online distribution of protected content such as, for example audio files, movies, etc, authorizing consumption of unlicensed content by transfer of a unique encrypted key to the protected media. This transaction is fast, involving the transfer of an encrypted binding key rather than the protected content. Content is enabled through a unique encrypted key on protected media accessed through a device separate from the media driver.