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:
Oct. 02, 2018
Filed:
Oct. 05, 2012
Nagravision S.a., Cheseaux-sur-Lausanne, CH;
Bertrand Wendling, Divonne-les-Bains, FR;
Nagravision S.A., Cheseaux-sur-Lausanne, CH;
Abstract
A method of managing the processing of a digital broadcast transport stream by a multimedia unit identified by a personal identifier. The multimedia unit being connectable to a security module associated to the multimedia unit and/or a server through an IP-connection with a return path. The transport stream comprising scrambled content packets and conditional access messages that are necessary for descrambling the content packets. The method comprises: sending the conditional access messages from the multimedia unit to either the server or the security module; verifying the authentication of the multimedia unit and/or the validity of access rights allocated to the multimedia unit; if the authentication fails, preventing any further processing of the conditional access message; securely obtaining, at the multimedia unit, the control data corresponding to the conditional access messages; and descrambling the audio/video/data content packets using the control data at the multimedia unit.