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:
Aug. 16, 2016
Filed:
Dec. 16, 2011
Eric Diehl, Cesson Sévigné, FR;
Eric Diehl, Cesson Sévigné, FR;
Thomson Licensing, Issy-les-Moulineaux, FR;
Abstract
A receiver receives digital content scrambled using a control word and a user code for the scrambled content. A user inputs the user code that is forwarded to a code extractor that generates the control word and a user identifier from it. The control word is sent to a descrambler, a watermark information generator and a visible watermark insertion unit. The descrambler descrambles the scrambled content using the control word, an invisible watermark insertion unit inserts invisible watermark information obtained from the watermark information generator into the descrambled content and the visible watermark insertion unit inserts the user identifier as a visible watermark. Also provided are a corresponding method for processing digital content and a method and a device for generating the user code.