Patent ID: 7564782

Claim:
A method for transmitting to a receiver packets through a network, the transmission method comprising: transmitting a plurality of packets to a receiver wherein a priority field indicates the importance of data included in the packets and the packets are transmitted in decreasing order of priority; dynamically forming a table indicating a correspondence of the importance of the data and the hierarchical information associated with the data; and transmitting the table to the receiver in a communication channel separate from the packets, wherein the packets are based on realtime transport protocol (RTP), the data is JPEG-2000 data, and the priority field is included in a payload header placed after an RTP header of the RTP packets, wherein the packets include a field for indicating an offset from the start of the JPEG-2000 image frame when the JPEG-2000 data is divided into a plurality of packets, wherein the JPEG-2000 data is divided in consideration of packet loss, wherein the division of the JPEG-2000 data in consideration of packet loss means that the JPEG-2000 data is divided into significant data units so as to configure the RTP packets with only complete data units, or the RTP packets are configured only with incomplete data units, wherein the significant data unit is the main header, tile-part header, entire data, or individual JP2 packet of JPEG-2000 standard.