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。

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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。

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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。

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