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:
Sep. 15, 2015
Filed:
Feb. 10, 2012
Eric Diehl, Liffre, FR;
Yves Maetz, Melesse, FR;
Mohamed Karroumi, Rennes, FR;
Stéphane Onno, Saint Gregoire, FR;
Eric Diehl, Liffre, FR;
Yves Maetz, Melesse, FR;
Mohamed Karroumi, Rennes, FR;
Stéphane Onno, Saint Gregoire, FR;
THOMSON LICENSING, Issy les Moulineaux, FR;
Abstract
There are times when a first user may wish to distribute an excerpt of a protected digital content to a second user, for example for criticism. The protected digital content is divided into a plurality of parts, each part being encrypted using a control word specific for the part, wherein each control word can be generated from a master control word for the protected digital content. A device belonging to the first user selects the parts of the excerpt; generates the control words for the selected parts from the master control word; generates a license for the selected parts, the license comprising the control words for the selected parts; and transmits the selected parts and the license to the receiver of the second user. Also provided is the device of the first user.