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:
Dec. 11, 2012
Filed:
Mar. 15, 2000
Ahmet Mursit Eskicioglu, Indianapolis, IN (US);
David Emery Virag, Indianapolis, IN (US);
David Jay Duffield, Indianapolis, IN (US);
Michael Scott Deiss, Zionsville, IN (US);
Billy Wesley Beyers, Jr., Carmel, IN (US);
Ahmet Mursit Eskicioglu, Indianapolis, IN (US);
David Emery Virag, Indianapolis, IN (US);
David Jay Duffield, Indianapolis, IN (US);
Michael Scott Deiss, Zionsville, IN (US);
Billy Wesley Beyers, Jr., Carmel, IN (US);
Thomson Licensing, Issy les Moulineaux, FR;
Abstract
A method for providing local security of audio and video content during transmission and storage within digital home networks. Scrambled content may be recorded in all conditions, however, only authorized copies are processed for descrambling and viewing. Content is protected within a network by rebundling the keys required for descrambling, e.g., the TDES keys, into a new ECM (LECM), which is protected by a local public key.