A method for processing a packet-based scrambled stream, the method including receiving a plurality of scrambled packets in a packet stream, descrambling any of the scrambled packets, and transmitting a modified packet stream including at least one of the descrambled packets and at least one of the scrambled...http://www.google.fr/patents/US20050157714?utm_source=gb-gplus-shareBrevet US20050157714 - Scrambled packet stream processing
