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:
Jul. 29, 2014
Filed:
Feb. 04, 2004
Daniel Lecomte, Paris, FR;
Sebastien Georges, Paris, FR;
Daniel Lecomte, Paris, FR;
Sebastien Georges, Paris, FR;
Nagra France, , FR;
Abstract
A process for secure distribution of video sequences coded in accordance with a nominal stream format including visual data and data for configuration of decoding of the stream that does not represent the visual data, wherein, prior to transmission to client equipment, an analysis is made of the stream for generating a modified main stream having a format of the nominal stream and having pictures/images modified by modification of the data for configuration of decoding, and complementary digital information of any format including digital information suitable to permit reconstruction of modified pictures, then, for separately transmitting the modified main stream and complementary digital information generated from a server to the client equipment, and wherein a synthesis of a stream in the nominal format is calculated on the client equipment as a function of the modified main stream and the complementary information.