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:
Feb. 22, 2022
Filed:
Jun. 13, 2017
Nagravision S.a., Cheseaux-sur-Lausanne, CH;
Yann Bieber, Lausanne, CH;
Nagravision S.A., Cheseaux-sur-Lausanne, CH;
Abstract
A device () for generating a watermarked stream (), comprising: at least one input interface () configured to receive encrypted control messages () and conditional access streams () including a main stream () and protected watermarking data streams () from which a watermarking information () can be embedded in said watermarked stream (); a security module () configured to process said control messages () and to control access to said conditional access streams (); a descrambler () configured to remove protection applied on at least some of said conditional access streams (); a watermarking unit () configured to generate the watermarked stream () from said conditional access streams () by selectively processing said watermarking data streams () depending on access data (AC, AR) included in some of said control messages ().