Demultiplexing device

Cryptography – Key management – Having particular key generator

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348390, 348420, 348423, 370474, 370509, 370515, H04N 7167, H04N 712, H04J 306

Patent

active

058355910

ABSTRACT:
The object of the invention is a demultiplexing device.
This device is characterized in that it comprises means for storing data of a multiplexed data stream (4), programmable means for storing data filters (8), comparison means (19) between the data of the multiplexed data stream and the data filters, and means (12) for transferring data of the multiplexed data stream to storage means (5) in relation to the comparisons made.
The invention has a particular application in the field of digital television reception.

REFERENCES:
patent: 4748619 (1988-05-01), Vigarie et al.
patent: 5228028 (1993-07-01), Cucchi et al.
patent: 5459789 (1995-10-01), Tamer et al.
patent: 5473609 (1995-12-01), Chaney
patent: 5475754 (1995-12-01), Bridgewater et al.
patent: 5521979 (1996-05-01), Deiss
patent: 5583562 (1996-12-01), Birch et al.
patent: 5619197 (1997-04-01), Nakamura
patent: 5668841 (1997-09-01), Haskell et al.
IEEE 1995 International Conference On Consumer Electronics, 7 Jun. 1995, Froidevaux et al: "MPEG1 and MPEG2 System Layer Implementation Trade-Off between Micro Coded and FSM Architecture" pp. 250-251.

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