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1. 发明授权

US5400329A Packet network and method for congestion avoidance in packet networks 失效
标题翻译：分组网络中的拥塞避免的分组网络和方法
公开(公告)号：US5400329A
公开(公告)日：1995-03-21
申请号：US51900
申请日：1993-04-27
申请人： Nobuyuki Tokura , Yoshio Kajiyama , Hideo Tatsuno
发明人： Nobuyuki Tokura , Yoshio Kajiyama , Hideo Tatsuno
IPC分类号： H04L12/54 , H04L12/70 , H04J3/16
CPC分类号： H04L12/5602 , H04L2012/5636
摘要： Packet transfer is controlled by using an acceleration rate of packet transfers or by using a packet transfer rate acceleration ratio to predict that congestion will occur at a prescribed time in the future. Congestion avoidance in packet integrated networks is thereby achieved in a network having both variable rate terminal nodes and fixed rate terminal nodes. A future packet transfer rate is predicted in a congestion prediction circuit on the basis of a pre-established upper limit for the packet transfer acceleration or acceleration ratio. When it is predicted that the packet transfer rate will exceed a permissible value, a congestion prediction signal is output or a rate increase request indication is deleted. The invention prevents packets from being discarded in the packet network, allows buffer memory capacity of nodes in the network to be decreased, and avoids the generation of new packets when signal congestion is predicted.
摘要翻译：通过使用分组传送的加速率或通过使用分组传输速率加速比来预测在将来的规定时间内将发生拥塞的分组传送。因此，在具有可变速率终端节点和固定速率终端节点的网络中实现了分组集成网络中的拥塞避免。基于分组传送加速度或加速比的预先建立的上限，在拥塞预测电路中预测未来的分组传送速率。当预测分组传输速率将超过允许值时，输出拥塞预测信号或者删除速率增加请求指示。本发明防止分组网络中的分组被丢弃，允许减少网络节点的缓冲存储器容量，避免在预测信号拥塞时产生新的分组。

2. 发明授权

US5469428A Loop-back system in a dual ring network 失效
标题翻译：双环网络中的环回系统
公开(公告)号：US5469428A
公开(公告)日：1995-11-21
申请号：US858364
申请日：1992-03-25
申请人： Nobuyuki Tokura , Yoshio Kajiyama , Hideo Tatsuno , Takashi Nakashima
发明人： Nobuyuki Tokura , Yoshio Kajiyama , Hideo Tatsuno , Takashi Nakashima
IPC分类号： H04L12/437 , H04Q11/04 , H04L12/42
CPC分类号： H04L12/437 , H04J2203/006 , H04J2203/0089
摘要： A loop-back recovery technique used when a failure takes place in a ring network, for transmitting information to a path indicated with a path ID number or the time slot position from a periodic frame. This is achieved by establishing working paths on one of the dual ring line between a transmission node and a receiving node thereof, establishing ring-formed protection paths in a ring line of the direction opposite to the working line, and making a loop-back from the working paths to the corresponding protection paths at a node which detected the failure. The receiving node multiplexes the working and protection paths to receive data from either.
摘要翻译：当在环形网络中发生故障时使用的环回恢复技术，用于将信息发送到由周期性帧中的路径ID号或时隙位置指示的路径。这通过在传输节点和其接收节点之间的双环线之一上建立工作路径来实现，在与工作线相反的方向的环线中建立环形保护路径，并且从在检测到故障的节点处的相应保护路径的工作路径。接收节点多路复用工作和保护路径以接收数据。

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