发明名称 |
Data communication system, data transmission apparatus, data receiving apparatus, data communication method, data transmission method, received-data processing method, and computer program |
摘要 |
A system allows data transfer in which the most appropriate packet processing is executed according to the performance of a terminal. A data transmission side stores scalable-encoded data in a packet as a payload, assigns priority-level information corresponding to a layer level of the encoded data stored in the packet to a packet header, and transmits the packet. A data receiving side performs processing by referring to the priority-level information. A level of priority dependent on an application is specified in an RTP payload header according to the degree of importance of scalable-encoded data, and a level of priority is further specified in an IP header. The most appropriate packet processing based on the performance of a terminal is allowed. Re-transmission control based on the layer level of encoded data is also allowed.
|
申请公布号 |
US7577093(B2) |
申请公布日期 |
2009.08.18 |
申请号 |
US20070746784 |
申请日期 |
2007.05.10 |
申请人 |
SONY CORPORATION |
发明人 |
ITAKURA EISABURO;FUKUHARA TAKAHIRO;ICHINO YASUHIKO |
分类号 |
H04L12/26;H04N7/30;H03M7/30;H04L12/56;H04L29/06;H04N7/08;H04N7/081;H04N7/24;H04N7/26 |
主分类号 |
H04L12/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|