Multi-room conditional access system

For use in a multi-room conditional access system a conditional access module is provided that incorporates a master smartcard reader and a slave smartcard reader, descrambling means and a multi-room application safely stored inside of the module. The descrambling means for descrambling a data strea...

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Bibliographic Details
Main Authors GENEVOIS, CHRISTOPHE, QUILLIEN, GUY, LAPERCHE, YANNICK-OLIVIER
Format Patent
LanguageEnglish
French
German
Published 15.11.2006
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:For use in a multi-room conditional access system a conditional access module is provided that incorporates a master smartcard reader and a slave smartcard reader, descrambling means and a multi-room application safely stored inside of the module. The descrambling means for descrambling a data stream requires control words provided by a conditional access application in the module subject to the presence of a valid slave smartcard in the slave smartcard reader, and subject to being enabled by the multi-room application. The multi-room application enables the descrambling means only in presence of a valid master smartcard in the master smartcard reader. Each time the multi-room application enables the slave smartcard, the slave smartcard is enabled only for a limited period of time.
Bibliography:Application Number: EP20060003583