Device for insertion of digital packets in a transmission channe

Details Device for insertion of digital packets in a transmission channe Device for insertion of digital packets in a transmission channe

1992-06-17

1994-01-18

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, 370112, 358142, H04J 326

Patent

active

052804798

ABSTRACT:
The multiplexing device is for insertion of digital packets, supplied by several different sources, in a same transmission channel having an average data rate at least equal to the sum of the average data rates supplied by the sources. It comprising a packet call input unit connected to the transmission channel. The sources are cascaded and the downstream source constitutes an interface towards the input unit. Each source comprises a generator of an insertion priority order for each packet as a function of the type of packet, of the number of stored packets, and of insertion rules associated with the type of packets to be transmitted. Each cascaded source, with the exception of the most upstream source, has a routing circuit supplying at its output the highest priority among the two priorities applied to its input, and of which one corresponds to the source itself and the second to the upstream unit.

REFERENCES:
patent: 4630261 (1986-12-01), Irvin
patent: 5050161 (1991-09-01), Golestani
Rundfunktechnische Mitteilungen vol. 29, No. 1, Jan. 1, 1985, Norstedt De, pp. 23-35; Christoph Dosch: "C-MAC/Packet--Normvorschlag der Europaischen Runkfunkunion fur den Satellitenrundfunk."
IEEE Proceedings International Conference on Consumer Electronics, Jun. 6, 1989, Rosemont (US), pp. 280-281; F. Courtot et al: "A single conditional access system for satellite-cable and terrestrial tv."

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