DIGITAL AUDIO/VIDEO DATA PROCESSING UNIT AND METHOD FOR CONTROLLING ACCESS TO SAID DATA

The processing unit has a deciphering unit receiving audio/video data and deciphering the data with an aid of control-word. The deciphered data is encrypted by an encryption unit (EC) with a common encryption key (Ki). The stored data is forwarded towards a decryption unit that deciphers the data un...

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Bibliographische Detailangaben
Hauptverfasser:	PUIATTI, JEAN-MICHEL, HILL, MICHAEL JOHN, NICOULIN, ANDRE, GREMAUD, FABIEN, MOREILLON, GUY, FISCHER, NICOLAS
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The processing unit has a deciphering unit receiving audio/video data and deciphering the data with an aid of control-word. The deciphered data is encrypted by an encryption unit (EC) with a common encryption key (Ki). The stored data is forwarded towards a decryption unit that deciphers the data under control of a security module (SM).The security module transmits the common key with the control word. An independent claim is also included for an access control method to digital audio/video data.