Until now, there is no practical optical buffer. In our case, we try to realize data storage or packet synchronization by slowing down the group velocity of light.
目前还没有可实用的光缓存，我们旨在通过减慢光速来实现信号的存储或者同步。
These technology include relevant protocols, multimedia synchronization, Packet-Loss Recovery, Congestion Control for multimedia Communication.
这些技术包括多媒体传输的相关协议、多媒体同步、丢包恢复技术和拥塞控制。
Based on "ALL IP" network background in communication system, the packet network as a unified bearer network will face new problems of synchronization need.
在通信系统全网IP化的大背景下，分组网络作为统一承载网将面临新的同步需求问题。
The synchronization techniques for burst packet transmission mode OFDM systems is studied, including timing, frequency offset estimation and channel estimation.
本文主要研究适用于突发OFDM传输系统的同步技术，包括定时、频偏估计和信道估计。
Compared with the time stamp method, the proposed adaptive method for clock synchronization is far more extensively applicable in packet networks.
相对于时间标签法，自适应法在分组网络中进行时钟同步方面具有更广泛的适用空间。
PTP can be applied in a packet network easily and flexibly with submicrosecond-level synchronization accuracy, and will become an effective alternative to GPS.
PTP技术可方便灵活地应用于分组网络中，同步精度可达亚微秒级，将成为GPS的有效替代。
Finally, the packet marker bit is replaced by the use of a one's complemented synchronization flag.
最后，分组标记符比特通过使用1的补码的同步标记替代。
At the same time, the problems of multimedia synchronization control mechanism in the practical packet-switching networks and so on are studied too.
同时，深入研究了实际分组交换网络中多媒体同步控制机制等问题。
At the same time, the problems of multimedia synchronization control mechanism in the practical packet-switching networks and so on are studied too.
同时，深入研究了实际分组交换网络中多媒体同步控制机制等问题。
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