Combined DCAM and transport demultiplexer

Details Combined DCAM and transport demultiplexer Combined DCAM and transport demultiplexer

1995-05-31

1997-02-11

Gregory, Bernarr E.

Cryptography

Key management

Having particular key generator

380 9, 380 10, 380 20, 380 23, 370412, H04L 900, H04N 7167

Patent

active

056029209

ABSTRACT:
A combined condition access and transport demultiplexer circuit comprises a decryption device receiving a demodulated transport bitstream including a plurality of multiplexed conditional access (CA) and product (e.g. video, audio and data) packets, each CA packet being identified by a CA PID and each product packet by a respective product PID. A comparator is provided for comparing the PID of each received packet with a plurality of stored PID values representing the CA PID and selected product PID's. A routing manager is responsive to the comparator for routing received CA packets from the decryption device to a conditional access circuit which controls the decryption device and for routing received product packets to appropriate output ports for further processing.

REFERENCES:
patent: 5412724 (1995-05-01), Mary
patent: 5420866 (1995-05-01), Wasilewski

Affiliated with

Also associated with

Rating

Combined DCAM and transport demultiplexer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combined DCAM and transport demultiplexer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined DCAM and transport demultiplexer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-348992