Multiplexer of digital information packets, especially for...

H - Electricity – 04 – J

Patent

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Details

H04J 3/16 (2006.01) H04J 3/24 (2006.01) H04N 7/50 (2006.01) H04N 7/58 (2006.01) H04N 7/60 (2006.01)

Patent

CA 2203788

A device including a plurality of packetising modules supplying packet memories (PMi) from digital input streams, and multiplexing means (14) for selecting the packet memories from which the multiplex packets are to be retrieved and transferring them sequentially to a device output. Each packet in a packet memory is combined with selection parameters calculated by its packetising module and indicating at least an earliest time, a latest time and preferably an ideal time for transmission of the packet by the multiplexing means. The multiplexing means select the memory from which each multiplex packet is to be retrieved on the basis of the packet transmission time and the respective selection parameters combined with the first packets on stand-by in each of the packet memories.

Le dispositif comprend plusieurs modules de paquétisation alimentant des mémoires de paquets (PMi) à partie de flux numériques d'entrée, et des moyens de multiplexage (14) sélectionnant les mémoires de paquets d'où les paquets du multiplex sont à extraire et transférant successivement lesdits paquets vers une sortie du dispositif. Chaque paquet présent dans une mémoire de paquets est associé à des paramètres d'élection calculés par son module de paquétisation, et représentant au moins une heure minimale, une heure maximale et de préférence une heure idéale d'émission dudit paquet par les moyens de multiplexage. Les moyens de multiplexage sélectionnent la mémoire d'où est à extraire chaque paquet du multiplex sur la base de l'heure d'émission dudit paquet et des paramètres d'élection respectivement associés aux premiers paquets en attente dans chacune des mémoires de paquets.

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