Digital video broadcasting receiver

Details Digital video broadcasting receiver Digital video broadcasting receiver

2003-04-04

2009-08-25

Zand, Kambiz (Department: 2434)

Cryptography

Video cryptography

Video electric signal modification

C380S212000, C380S238000, C713S168000, C709S236000, C370S509000, C370S536000, C725S151000

Reexamination Certificate

active

07580522

ABSTRACT:
A digital video broadcasting receiver comprising a first input for receiving a first transport stream of data (TS#1) and a second input for receiving a second transport stream of data (TS#2), each transport stream comprising a plurality of packets and each packets having a header including a packet identifier PID. A de-scrambling device (12) receives packets of a transport stream for de-scrambling. A router (20) is arranged to pass packets alternately from the first TS#1and the second TS#2transport streams to the de-scrambling device12and to pass packets alternately to a first a second output, so restoring the first and second transport streams of data in a descrambled form.

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