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. 01, 2015
Filed:
May. 14, 2013
Thomson Licensing, Issy de Moulineaux, FR;
Eric Diehl, Issy, FR;
Olivier Heen, Domloup, FR;
Yves Maetz, Melesse, FR;
Marc Eluard, Saint-Malo, FR;
THOMSON LICENSING, Issy les Moulineaux, FR;
Abstract
A method of protecting a graphical object represented by a list of vertices and a list of surfaces, each surface being defined by a number N vertices. A device selects a surface S with N vertices; computes a new vertex d using a random or pseudo-random function; inserts the new vertex d into the list of vertices; creates N new surfaces S-SN from the surface S and the new vertex d; and replaces the selected surface S by the new surfaces S-SN in the list of surfaces. The device preferably iterates the method. The device may shuffle the list of vertices with the inserted vertices. Also provided is an unprotection method and corresponding devices and computer readable storage media.