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1. 发明授权

US06618357B1 Queue management for networks employing pause time based flow control 有权
标题翻译：使用基于暂停时间的流量控制的网络的队列管理
公开(公告)号：US06618357B1
公开(公告)日：2003-09-09
申请号：US09432048
申请日：1999-11-01
申请人： Joel Erwin Geyer , Jeffrey James Lynch , Joseph Gerald McDonald
发明人： Joel Erwin Geyer , Jeffrey James Lynch , Joseph Gerald McDonald
IPC分类号： H04J314
CPC分类号： H04L29/06 , H04L67/325
摘要： In pause time based flow control systems having station-level granularity, a station or switch may detect congestion or incipient congestion and send a flow control frame to an upstream station, commanding that upstream station to temporarily stop (pause) sending data for a period of time specified in the flow control frame. The traffic pause gives the downstream station time to empty its buffers of at least some of the excess traffic it has been receiving. Since each downstream station operates independently in generating flow control frames, it is possible for the same upstream station to receive multiple, overlapping pause commands. If an upstream station which is already paused receives subsequent flow control frames from the same downstream station that triggered the pause, the upstream station's pause timer is rewritten using the pause times in the successive flow control frames. If the upstream station receives flow control frames from different downstream stations, the upstream station updates the pause timer only if the pause time in the most recent flow control message is greater than the remaining part of the previously established pause time.
摘要翻译：在具有站级粒度的基于暂停时间的流量控制系统中，站或交换机可以检测拥塞或初始拥塞并向上游站发送流控制帧，命令上游站临时停止（暂停）发送数据一段时间流控制帧中指定的时间。流量暂停使下游站有时间清空其已经收到的至少一些超量流量的缓冲区。由于每个下游站在生成流控制帧时独立运行，所以相同的上游站可以接收多个重叠的暂停命令。如果已经暂停的上游站从触发暂停的同一下游站接收后续流控制帧，则使用连续流控制帧中的暂停时间来重写上游站的暂停定时器。如果上游站从不同的下游站接收到流量控制帧，则只有当最新流量控制消息中的暂停时间大于先前建立的暂停时间的剩余部分时，上游站更新暂停定时器。

2. 发明授权

US06339788B1 Method for encapsulating hardware to allow multi-tasking of microcode 失效
标题翻译：用于封装硬件以允许微代码多任务的方法
公开(公告)号：US06339788B1
公开(公告)日：2002-01-15
申请号：US09097036
申请日：1998-06-12
申请人： Joel Erwin Geyer , Peter Anthony LaBerge , Myrna Faye Milliser , Max Robert Povse
发明人： Joel Erwin Geyer , Peter Anthony LaBerge , Myrna Faye Milliser , Max Robert Povse
IPC分类号： G06F300
CPC分类号： H04L12/433
摘要： The problem with sharing or multi-tasking a single microprocessor across multiple ports is that it requires an elaborate and costly effort to adapt, modify, and rewriting of existing microcode. Extensive effort has gone into the development and testing of existing microcode that supports Token Ring. The re-use of the microcode, mostly in an “as is” condition is required to increase effectiveness and reduce costs. The present invention resolves these problems. It further describes a method that easily encapsulates existing hardware and allows the use of existing microcode to be extended to a multi-tasking environment, at a substantially reduced cost and with greater efficiency. Another embodiment of this invention describes a system and method to reuse a single existing Token Ring macro with embedded processor and microcode for multiple ports on a chip.
摘要翻译：在多个端口上共享或多任务处理单个微处理器的问题在于，需要进行精心设计和花费更多的努力来适应，修改和重写现有的微代码。广泛的努力已经开发和测试现有的支持令牌环的微码。需要重新使用微代码，主要是以“原样”的条件来提高效率并降低成本。本发明解决了这些问题。它进一步描述了一种方法，其容易地封装现有硬件，并且允许将现有微代码以显着降低的成本并且以更高的效率扩展到多任务环境。本发明的另一个实施例描述了一种系统和方法，用于将具有嵌入式处理器的单个现有令牌环宏重用，并且针对芯片上的多个端口重新使用微代码。

3. 发明授权

US4932023A Frame stripping protocol for early token release in a ring communication network 失效
标题翻译：在环通信网络中的早期令牌释放的帧去除协议
公开(公告)号：US4932023A
公开(公告)日：1990-06-05
申请号：US368739
申请日：1989-06-20
申请人： Joel Erwin Geyer , Joseph K. Lee , Vernon R. Norman , Kenneth T. Wilson
发明人： Joel Erwin Geyer , Joseph K. Lee , Vernon R. Norman , Kenneth T. Wilson
IPC分类号： H04L12/433
CPC分类号： H04L12/433
摘要： A frame stripping algorithm for use in a ring communication network utilizing early token release wherein multiple frames can exist on the ring at one time. The algorithm introduces two new strip terminating conditions which supplement two of the three conditions applicable to a normal token release scheme. The first of these conditions occurs when the source address in a received message is not the same as the receiving station's address and no code violation errors have been detected. The second condition occurs when the receiving station detects an isolated ending delimiter without a preceding starting delimiter.

4. 发明授权

US4964113A Multi-frame transmission control for token ring networks 失效
标题翻译：令牌环网络的多帧传输控制
公开(公告)号：US4964113A
公开(公告)日：1990-10-16
申请号：US424850
申请日：1989-10-20
申请人： Joel Erwin Geyer , Joseph K. Lee , Kenneth T. Wilson
发明人： Joel Erwin Geyer , Joseph K. Lee , Kenneth T. Wilson
IPC分类号： H04L12/433
CPC分类号： H04L12/433
摘要： A method and apparatus for enabling the transmitter to decide the number of variable length frames that can be trasmitted within the token holding timer (THT) window. The last frame decision algorithm enables the transmitter to set the intermediate frame bit in the ending delimiter to the right state to indicate the status of each frame in the transmitted frame sequence. A look-ahead technique is used to check the remaining transmit time available in the THT time window, therefor, no ring bandwidth is wasted on partially transmitted aborated frames, effectively optimizing the throughput of the network. Since key variables in the last frame decision algoritm are softwar programmable, the algorithm is independent of ring speed. The algorithm counts transmitted octets instead of measuring transmission time in deciding whether to transmit an additional frame. The algorithm can be applied to either signal frame or multi-frame transmit mode and to either normal or early token release. It is applicable to both the IEEE 802.5 local area network standard for token ring networks and the AnSI X3T9.5 standard for FDDI.
摘要翻译：一种用于使发射机能够确定在令牌保持定时器（THT）窗口内可以被丢弃的可变长度帧的数量的方法和装置。最后一帧决策算法使得发射机能够将终止定界符中的中间帧位设置为正确的状态，以指示所发送的帧序列中的每个帧的状态。使用先行技术来检查在THT时间窗口中可用的剩余发送时间，因此，在部分传输的无效帧上不浪费环带宽，有效地优化网络的吞吐量。由于最后一帧决策算法中的关键变量是软件可编程的，所以算法与环速无关。该算法计算发送的八位字节，而不是在决定是否发送附加帧时测量传输时间。该算法可以应用于信号帧或多帧传输模式以及正常或早期令牌释放。适用于令牌环网的IEEE 802.5局域网标准和FDDI的AnSI X3T9.5标准。

5. 发明授权

US5684960A Real-time ring bandwidth utilization calculator by sampling over a selected interval latch's states set by predetermined bit pattern on the transmission medium 失效
标题翻译：实时环带宽利用计算器通过在传输介质上通过预定位模式设置的所选间隔锁存器的状态进行采样
公开(公告)号：US5684960A
公开(公告)日：1997-11-04
申请号：US474226
申请日：1995-06-07
申请人： Joel Erwin Geyer , Joseph K. Lee
发明人： Joel Erwin Geyer , Joseph K. Lee
IPC分类号： G06F11/34 , H04L12/26 , H04L12/433
CPC分类号： H04L12/433 , H04L12/2602 , H04L43/00 , H04L43/022 , H04L43/0852 , H04L43/0882
摘要： An adapter which attaches Data Terminal Equipment (DTE) to a LAN includes a latch whose state is changed by conditions, such as a free token or a frame, on the LAN. The Output of the latch is used to calculate the bandwidth utilization of the LAN.
摘要翻译：将数据终端设备（DTE）连接到LAN的适配器包括其状态根据LAN上的诸如免费令牌或帧的条件改变的锁存器。锁存器的输出用于计算LAN的带宽利用率。

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