The paper presents a prototype of virtual decoder of the transport stream＇s system target decoder （T-STD）. By connecting the coding model and decoding model, and feeding the overflow of decoding buffer back to cont...The paper presents a prototype of virtual decoder of the transport stream＇s system target decoder （T-STD）. By connecting the coding model and decoding model, and feeding the overflow of decoding buffer back to control coding, we have got a self-adaptive coding model, and propose an algorithm of muhiplexing multiple elementary streams to a transport stream based on the principle of virtual buffer controlling strategy. The transport stream （TS） which uses this method passes the test of software unzipping and set top-box （STB） playing, and all of the analyzing parameters which are detected by code analyzer accord with the standard of MPEG-2. Some problems that playing time becomes longer and mul tiple TS streaming can not be fit for all the players are also analyzed.展开更多
NOC（network-on-chip）设计中,最重要的问题是如何提高NOC的性能并减小延时。通讯网络中的的节点结构对NOC的性能和延时有着重要影响。而其中通讯节点虚拟通道的buffer深度尤为关键。通过NIRGAM（NOC Interconnect Routing and Ap plic...NOC（network-on-chip）设计中,最重要的问题是如何提高NOC的性能并减小延时。通讯网络中的的节点结构对NOC的性能和延时有着重要影响。而其中通讯节点虚拟通道的buffer深度尤为关键。通过NIRGAM（NOC Interconnect Routing and Ap plication Modeling）仿真器对一个基于XY路由算法的3×4的2D-Mesh结构NOC进行研究。分析结果表明：通讯节点虚拟通道的输入FIFO（First-In-Fist-Out）的buffer深度大于等于6时,NOC即得到优化。而该buffer深度为6到16时,优化效果并不理想。展开更多
基金Supported by the Electronics Developing FundProject ( MII[2002]13)
文摘The paper presents a prototype of virtual decoder of the transport stream＇s system target decoder （T-STD）. By connecting the coding model and decoding model, and feeding the overflow of decoding buffer back to control coding, we have got a self-adaptive coding model, and propose an algorithm of muhiplexing multiple elementary streams to a transport stream based on the principle of virtual buffer controlling strategy. The transport stream （TS） which uses this method passes the test of software unzipping and set top-box （STB） playing, and all of the analyzing parameters which are detected by code analyzer accord with the standard of MPEG-2. Some problems that playing time becomes longer and mul tiple TS streaming can not be fit for all the players are also analyzed.
文摘NOC（network-on-chip）设计中,最重要的问题是如何提高NOC的性能并减小延时。通讯网络中的的节点结构对NOC的性能和延时有着重要影响。而其中通讯节点虚拟通道的buffer深度尤为关键。通过NIRGAM（NOC Interconnect Routing and Ap plication Modeling）仿真器对一个基于XY路由算法的3×4的2D-Mesh结构NOC进行研究。分析结果表明：通讯节点虚拟通道的输入FIFO（First-In-Fist-Out）的buffer深度大于等于6时,NOC即得到优化。而该buffer深度为6到16时,优化效果并不理想。
