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:
Jun. 19, 2007
Filed:
Mar. 25, 1999
Talal G. Shamoon, Palo Alto, CA (US);
Ralph D. Hill, Los Gatos, CA (US);
Chris D. Radcliffe, Redwood City, CA (US);
John P. Hwa, Fremont, CA (US);
W. Olin Sibert, Lexington, MA (US);
David M. Van Wie, Eugene, OR (US);
Talal G. Shamoon, Palo Alto, CA (US);
Ralph D. Hill, Los Gatos, CA (US);
Chris D. Radcliffe, Redwood City, CA (US);
John P. Hwa, Fremont, CA (US);
W. Olin Sibert, Lexington, MA (US);
David M. Van Wie, Eugene, OR (US);
Intertrust Technologies Corp., Sunnyvale, CA (US);
Abstract
Systems and methods for protection of streamed media content are disclosed. In one aspect, the system includes control means for governing content streams or objects, decryption means for decrypting content streams or objects, and feedback means for tracking use of content streams or objects. The control means may operate in accordance with rules received in the streamed content or through a side-band channel. The rules may specify allowed uses of the content, including whether the content can be copied or transferred, and whether content may be 'checked out' of one device and used in another. The rules may also include budgets, and a requirement that audit information be collected and/or transmitted to server. In another aspect, a media player is disclosed that uses plugins to assist in rendering content. A 'trust plugin' is used to enable a media player designed to render unprotected content to render protected content.