Multicast router, distribution system,network and

专利名称：Multicast router, distribution

system,network and method of a contentdistribution

发明人：Leprovost, Yann,Sayadi, Bessem申请号：EP07291194.4申请日：20071002公开号：EP2046041A1公开日：20090408

专利附图：

摘要：The invention relates to a multicast router (8) of a content distribution systemand a associated method adapted on the one hand, for receiving from an upper level of a

network (1) multiplexed, in scalable video compression encoded, television channel bit-streams (14) and on the other hand, adapted to multicast said multiplexed, in scalablevideo compression encoded, television channel bit-streams (14) to a lower level of saidnetwork (1), comprising: - a demultiplexer (16) of said multiplexed, in scalable videocompression encoded, television channel bit-streams (14) into different in scalable videocompression encoded, television channel bit-streams (24), - encoded video layer

extractors (18), able to select with respect to a television channel, different layers of saidin scalable video compression encoded, television channel bit-streams (24), - a statisticalmultiplexer controller (20) for controlling said encoded video layer extractors (18) totruncate selected layers of associated in scalable video compression encoded, televisionchannel bit-streams (24) obtaining truncated, in scalable video compression encoded,television bit-streams (27), in order to adapt the output bit-rate to the allowablebandwidth (25) of the lower level of the network (1), - a multiplexer (22) of said truncate,in scalable video compression encoded, television channel bit-streams (27), into

multiplexed, in scalable video compression encoded, television channel bit-streams (29).This invention relates also to a multicast system (31) and a network (1) comprising such amulticast router (8).

申请人：Alcatel Lucent

地址：54 rue La Boétie 75008 Paris FR

国籍：FR

代理机构：Croonenbroek, Thomas Jakob

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