Patent ID: 8204081

Claim:
A network timestamp inserting apparatus in a network based multimedia stream transport system, the apparatus comprising: a timestamp generator to generate a timestamp used to compensate for network jitter or used for synchronization between a transmitting party and a receiving party; and a packetizer to generate a user datagram protocol (UDP) packet or a real time transport protocol (RTP) packet, each of which includes a plurality of transport stream (TS) packets and a timestamp; and wherein the packetizer is configured to generate one or more UDP packet having a plurality of TS packets and a UDP packet having the timestamp and insert the UDP packet having the timestamp between the UDP packets having the TS packets, or the packetizer is configured to generate one or more RTP packet having a plurality of TS packets and a RTP packet having the timestamp and insert the RTP packet having the timestamp between the RTP packets having the TS packets.