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:
Jan. 09, 2007
Filed:
Jun. 15, 2001
Robert Wilhelm Schumann, Oakton, VA (US);
Richard Whittemore, Herndon, VA (US);
David Mosche Goldschlag, Silver Spring, MD (US);
David William Kravitz, Fairfax, VA (US);
Siu-leong Iu, San Jose, CA (US);
Guillaume Mercier, McLean, VA (US);
Michael Bergeron, Poway, CA (US);
Jack Ehrhardt, Richmond, VA (US);
Richard Vitkus, Richmond, VA (US);
Robert Wilhelm Schumann, Oakton, VA (US);
Richard Whittemore, Herndon, VA (US);
David Mosche Goldschlag, Silver Spring, MD (US);
David William Kravitz, Fairfax, VA (US);
Siu-Leong Iu, San Jose, CA (US);
Guillaume Mercier, McLean, VA (US);
Michael Bergeron, Poway, CA (US);
Jack Ehrhardt, Richmond, VA (US);
Richard Vitkus, Richmond, VA (US);
Digital Video Express, L.P., Richmond, VA (US);
Abstract
A content distribution system and method which prevents unauthorized access to secured content such as movies and music. The apparatus includes a source, a receiver, an authorized security device such as a conditional access module (CAM) for decrypting authorized content, an output device for outputting content and a backend for managing accounts and system operations. One aspect of this invention provides a mechanism for providing secured content on a medium such as a DVD optical disc. These devices may verify that there is authorization to play the secured content, add watermarks to the secured content, convert the secured content to a displayable form and provide a means for preventing output of the secured content.