Multiplexer of digital information packets, especially for...

H - Electricity – 04 – J

Patent

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H04J 3/16 (2006.01) H04J 3/24 (2006.01) H04N 7/50 (2006.01) H04N 7/58 (2006.01)

Patent

CA 2203786

A device including a plurality of packetising modules (C1, C2, ..., Cn) supplying packet memories (PM1, PM2, ..., PMm) from digital input streams (IS1, IS2, ..., ISn), and multiplexing means (14). Each packet in a packet memory is combined with selection parameters written into a related parameter memory (ZM1, ZM2, ..., ZMm) by its packetising module. The multiplexing means include processing means connected to the parameter memories via a parameter bus (12) for selecting the packet memories from which the multiplex packets are to be retrieved by analysing the respective selection parameters combined with the first packets on stand-by in each of the packet memories, and transfer means connected to the packet memories via a packet bus (10) and controlled by the processing means to retrieve a series of multiplex packets from the selected packet memories.

Le dispositif comprend plusieurs modules de paquétisation (C1, C2, ..., Cn) alimentant des mémoirés de paquets (PM1, PM2, ..., PMm) à partir de flux numériques d'entrée (IS1, IS2, ..., ISn), et des moyens de multiplexage (14). Chaque paquet présent dans une mémoire de paquets est associé à des paramètres d'élection écrits par son module de paquétisation dans une mémoire de paramètres associée (ZM1, ZM2, ..., ZMm). Les moyens de multiplexage comprennent des moyens de traitement reliés aux mémoires de paramètres par un bus de paramètres (12) pour sélectionner les mémoires de paquets d'où extraire les paquets du multiplex en analysant les paramètres d'élection respectivement associés aux premiers paquets en attente dans chacune des mémoires de paquets, et des moyens de transfert reliés aux mémoires de paquets par un bus de paquets (10) et commandés par les moyens de traitement pour extraire successivement les paquets du multiplex depuis les mémoires de paquets sélectionnées.

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