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:
Nov. 25, 2025
Filed:
Apr. 19, 2021
Nagravision Sarl, Cheseaux-sur-Lausanne, CH;
Karine Villegas, Cheseaux-sur-Lausanne, CH;
Roan Hautier, Cheseaux-sur-Lausanne, CH;
Pascal Fuchs, Cheseaux-sur-Lausanne, CH;
Fabien Gremaud, Cheseaux-sur-Lausanne, CH;
NAGRAVISION SARL, Cheseaux-sur-Lausanne, CH;
Abstract
A method is provided in which digital information is stored in a plurality of segments in an external memory. The method is performed by a processing device and comprises the steps of loading a first integrity table containing a plurality of first integrity elements respectively authenticating the plurality of segments of digital information, and an associated digital signature of the plurality of first integrity elements, from the external memory; verifying the digital signature associated with the first integrity table, and loading segments of digital information in a protected form from the external memory to the processing device.