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:
Apr. 08, 2008
Filed:
Apr. 18, 2002
Eric M. Foster, Owego, NY (US);
Jeffrey B. Lotspiech, San Jose, CA (US);
Florian Pestoni, Mountain View, CA (US);
Wilfred E. Plouffe, Jr., San Jose, CA (US);
Frank A. Schaffa, Hartsdale, NY (US);
Eric M. Foster, Owego, NY (US);
Jeffrey B. Lotspiech, San Jose, CA (US);
Florian Pestoni, Mountain View, CA (US);
Wilfred E. Plouffe, Jr., San Jose, CA (US);
Frank A. Schaffa, Hartsdale, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for attaching a title key to encrypted content for synchronized transmission to, or storage by, a recipient is provided. Specifically, under the present invention, an elementary media stream is parceled into content units that each include a content packet and a header. The content packets are encrypted with one or more title keys. Once the content packets have been encrypted, the title keys are themselves encrypted with a key encrypting key. The encrypted title keys are then attached to the corresponding encrypted content packets for synchronized transmission to a recipient.