FORWARD ERROR RECOVERY SYSTEM RECEIVING APPARATUS AND FORWARD ERROR RECOVERY SYSTEM RECEIVING/OUTPUTTING METHOD

摘要

PROBLEM TO BE SOLVED: To achieve sufficient resistance and low delay with respect to packet loss.;SOLUTION: A forward error recovery system receiving apparatus receives a stream of media packets with sequence numbers and FEC packets, and outputs the media packets. The forward error recovery system receiving apparatus includes: a buffer means which stores the received packets; a node control means which sets a plurality of node sequences comprised of a plurality of nodes for referring to storage positions, which are ranked by relatively corresponding to the sequence numbers; an analysis means which determines ranking of the nodes corresponding to the received media packets, and regards the media packets to which the nodes comprising the node sequence including the earliest ranking node need to refer when the determined ranking is within a predetermined ranking range as output objects; and an output means which attempts packet recovery using the FEC packets, and outputs the media packets to be output in the order of the sequence numbers when the media packets to be output include unreceived media packets.;COPYRIGHT: (C)2010,JPO&INPIT