| NAGRACARD S.A. Patent applications |
| Patent application number | Title | Published |
|---|
| 20090149209 | SYSTEM AND METHOD FOR MANAGING RESOURCES OF PORTABLE MODULE RESOURCES - Proposed are a method and a system for management of resources of portable resource modules, each connected to a communication terminal, which modules comprise electronic memory units and are designed in particular as chipcards. A first resource management instruction comprising a module identification is transmitted to a resource management centre. A second resource management instruction is transmitted from the resource management centre via a communication network to the resource module identified through the module identification. In the particular resource module, resources are made ready or released by a resource control mechanism corresponding to the received second resource management instruction. A resource management confirmation is transmitted by the particular resource module via the communication network to the resource management centre, and in the resource management centre information about the resources made ready or released is stored assigned to the module identification. | 06-11-2009 |
| 20080307499 | Upgradable Security Module - The aim of the present invention is to provide a security module capable of supporting the different functions of the latest and the previous generations, by avoiding any possible attack due to this adaptability. | 12-11-2008 |
| 20080209232 | Method and Device for Controlling Access to Encrypted Data - The invention concerns a method for controlling access to encrypted data by control words (CW), said control words being received by a security module in control messages (ECM) and returned to a unit operating on (STB) the encrypted data. The method includes the following steps: receiving a first control message (ECM) comprising at least one control word (CW) and a time stamp (TS), receiving a second control message (ECM | 08-28-2008 |
