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    Forming and maintaining access groups at the lan/wan interface
    4.
    发明授权
    Forming and maintaining access groups at the lan/wan interface 失效
    在lan / wan界面上形成和维护访问组

    公开(公告)号：US5365523A

    公开(公告)日：1994-11-15

    申请号：US976826

    申请日：1992-11-16

    申请人： Jeffrey H. Derby ,  Willibald A. Doeringer ,  John E. Drake, Jr. ,  Douglas H. Dykeman ,  Liang Li ,  Marcia L. Peters ,  Haldon J. Sandick ,  Ken Van Vu

    发明人： Jeffrey H. Derby ,  Willibald A. Doeringer ,  John E. Drake, Jr. ,  Douglas H. Dykeman ,  Liang Li ,  Marcia L. Peters ,  Haldon J. Sandick ,  Ken Van Vu

    IPC分类号： H04L12/66 ,  H04L12/46

    CPC分类号： H04L12/66

    摘要： Access agents in nodes at the LAN/WAN interface are formed into a group of access agents so that the access agents may be managed by the WAN as a group. The group must maintain group operation integrity in that if communications between agents in the group are broken, the access agents will coalesce into subgroups and continue performing communication jobs as a group activity. Each of the access agents contains a finite state machine to perform the tasks of group formation and maintenance. The formation of interconnected access agents into a group is accomplished by one access agent being identified as a group leader. All other access agents communicating with the group leader within the LAN may then join the group. The maintenance of group activity integrity is accomplished by detecting a break in group communication integrity and thereafter reforming the group into multiple smaller groups. The maintenance of group operation integrity also includes the merger of small groups into a large group when a bridge is added between LAN segments.

    摘要翻译： 在LAN / WAN接口的节点中的接入代理被形成为一组接入代理，使得接入代理可以由WAN作为一组进行管理。 该组必须维护组操作完整性，因为如果该组中的代理之间的通信中断，则访问代理将合并成子组并继续执行通信作业作为组活动。 每个访问代理包含一个有限状态机来执行组的形成和维护任务。 将互连的接入代理组合成一组是由一个接入代理被识别为组长。 所有与LAN内的组长通信的其他访问代理可以加入该组。 群体活动完整性的维护是通过检测组通信完整性的突破，然后将组重组成多个较小的组来实现的。 群组运行完整性的维护还包括在LAN段之间添加桥梁时将小组合并成大型组。

    Distributed processing of route selection across networks and subnetworks
    6.
    发明授权
    Distributed processing of route selection across networks and subnetworks 失效
    跨网络和子网路由选择的分布式处理

    公开(公告)号：US5398012A

    公开(公告)日：1995-03-14

    申请号：US980854

    申请日：1992-11-24

    申请人： Jeffrey H. Derby ,  Willibald A. Doeringer ,  John E. Drake, Jr. ,  Douglas H. Dykeman ,  Haldon J. Sandick ,  Ken V. Vu

    发明人： Jeffrey H. Derby ,  Willibald A. Doeringer ,  John E. Drake, Jr. ,  Douglas H. Dykeman ,  Haldon J. Sandick ,  Ken V. Vu

    IPC分类号： H04L12/56 ,  H04Q11/04 ,  H04L11/20

    CPC分类号： H04L45/04 ,  H04L45/44

    摘要： The process for determining the best communication route from a source end station to a destination end station is distributed over both source and destination network nodes. Network nodes, at the interface between a wide area network (WAN) and each subnetwork, contain access agents to control the communication flow between the wide area network and an end station in the subnetwork. The task of selecting the best route between two end stations is distributed between the access agents at the WAN interface in the first subnetwork, and the access agents at the WAN interface in the second subnetwork. Each access agent at one WAN interface obtains the best route from itself to the end station in its subnetwork. Each access agent at the other WAN interface finds the best route from each access agent at the first WAN interface through itself to the end station in its subnetwork. One designated access agent collects all the best route information. This best route information is concatenated, and the route with the least weight is selected as the best route between end stations.

    摘要翻译： 用于确定从源端站到目的地端站的最佳通信路由的过程分布在源网络节点和目的地网络节点上。 在广域网（WAN）和每个子网之间的接口上的网络节点包含访问代理，以控制广域网与子网中终端站之间的通信流。 在两个终端站之间选择最佳路由的任务分布在第一子网中的WAN接口的接入代理和第二子网中WAN接口的接入代理之间。 一个WAN接口的每个接入代理在其子网中获得从自己到终端站的最佳路由。 另一个WAN接口的每个接入代理从第一个WAN接口的每个接入代理器找到从其子网到终端站的最佳路由。 一个指定的访问代理收集所有最好的路由信息​​。 这个最佳路由信息是连接起来的，重量最小的路由被选为终端站之间的最佳路由。

    Traffic measurements in packet communications networks
    7.
    发明授权
    Traffic measurements in packet communications networks 失效
    分组通信网络中的流量测量

    公开(公告)号：US5274625A

    公开(公告)日：1993-12-28

    申请号：US942873

    申请日：1992-09-10

    申请人： Jeffrey H. Derby ,  Roch Guerin ,  Levent Gun

    发明人： Jeffrey H. Derby ,  Roch Guerin ,  Levent Gun

    IPC分类号： H04L12/56 ,  H04N21/236 ,  H04N21/434 ,  H04Q11/04 ,  H04J3/14

    CPC分类号： H04N21/434 ,  H04L43/08 ,  H04L43/0829 ,  H04L43/0876 ,  H04L43/0894 ,  H04N21/236 ,  H04Q11/0478 ,  H04L2012/5632 ,  H04L2012/5678

    摘要： A packet communications network relies on a few simple parameters to characterize the wide variety of traffic offered to that network, such as peak bit rate, mean bit rate and average packet burst length. A better representation of many types of traffic relies on an equivalent burst length which produces the same loss probability distribution, but assumes that the distribution is uncorrelated and exponential. Access control and bandwidth management based on such an equivalent burst length produces improved decisions due to the more accurate representation of the actual traffic distribution.

    摘要翻译： 分组通信网络依赖于几个简单参数来表征提供给该网络的各种业务，例如峰比特率，平均比特率和平均分组突发长度。 许多类型的业务的更好的表示依赖于等效的突发长度，其产生相同的丢失概率分布，但是假设分布是不相关的和指数的。 基于这种等效突发长度的访问控制和带宽管理由于实际流量分布的更准确的表示而产生改进的决策。

    Methods and apparatus for dynamically switching processor mode
    8.
    发明授权
    Methods and apparatus for dynamically switching processor mode 有权
    用于动态切换处理器模式的方法和装置

    公开(公告)号：US08250348B2

    公开(公告)日：2012-08-21

    申请号：US11132658

    申请日：2005-05-19

    申请人： Gordon T. Davis ,  Jeffrey H. Derby

    发明人： Gordon T. Davis ,  Jeffrey H. Derby

    IPC分类号： G06F7/38 ,  G06F9/00 ,  G06F9/44 ,  G06F9/46

    CPC分类号： G06F9/3017

    摘要： In a first aspect, a first processing method is provided. The first processing method includes the steps of (1) operating a processor in a first mode based on an operand size associated with a first instruction received by the processor; and (2) dynamically switching the processor operation mode from the first mode to a second mode based on a different operand size associated with a second instruction received by the processor. Numerous other aspects are provided.

    摘要翻译： 在第一方面中，提供了一种第一处理方法。 第一处理方法包括以下步骤：（1）基于与由处理器接收的第一指令相关联的操作数大小，以第一模式操作处理器; 和（2）基于与由处理器接收的第二指令相关联的不同操作数大小，将处理器操作模式从第一模式动态地切换到第二模式。 提供了许多其他方面。

    Method for SIMD-oriented management of register maps for map-based indirect register-file access
    9.
    发明授权
    Method for SIMD-oriented management of register maps for map-based indirect register-file access 有权
    用于基于地图的间接寄存器文件访问的用于面向SIMD管理寄存器映射的方法

    公开(公告)号：US07360063B2

    公开(公告)日：2008-04-15

    申请号：US11366884

    申请日：2006-03-02

    申请人： Peter G. Capek ,  Jeffrey H. Derby ,  Robert K. Montoye

    发明人： Peter G. Capek ,  Jeffrey H. Derby ,  Robert K. Montoye

    IPC分类号： G06F9/35

    CPC分类号： G06F9/3012 ,  G06F9/3004 ,  G06F9/30098 ,  G06F9/3013 ,  G06F9/30138 ,  G06F9/30145 ,  G06F9/30167 ,  G06F9/35 ,  G06F9/384

    摘要： A facility is provided for managing register maps for map-based indirect register file access within a processor. The management facility includes a register mapping including a set of maps, each map of the set of maps having a plurality of map registers. A set of actual registers is indirectly accessed by the processor via map entries of the set of maps. The number of actual registers in the set of actual registers is greater than the number of map entries in the set of maps, and the map entries of the set of maps reference only a subset of the set of actual registers at any given time. The facility includes managing updates to multiple entries of the set of maps of the register mapping by updating multiple map entries of at least one map of the set of maps responsive to executing a single update instruction.

    摘要翻译： 提供了一种用于管理处理器内基于地图的间接寄存器文件访问的寄存器映射的设施。 管理设施包括包括一组映射的寄存器映射，该映射集合的每个映射具有多个映射寄存器。 一组实际寄存器由处理器通过地图集的映射条目间接访问。 实际寄存器组中实际寄存器的数量大于映射集中映射条目的数量，映射集合的映射条目仅引用任何给定时间的实际寄存器集合的子集。 该设施包括通过基于执行单个更新指令来更新该组映射的至少一个映射的多个映射条目来管理对该映射映射集合的多个条目的更新。

    Repeater level control circuit
    10.
    发明授权
    Repeater level control circuit 失效
    中继器电平控制电路

    公开(公告)号：US4229625A

    公开(公告)日：1980-10-21

    申请号：US974380

    申请日：1978-12-29

    申请人： Jeffrey H. Derby ,  Tadikonda N. Rao

    发明人： Jeffrey H. Derby ,  Tadikonda N. Rao

    IPC分类号： H04B3/38

    CPC分类号： H04B3/38

    摘要： A bilateral transmission line repeater is disclosed in which opposite directions of transmission are separated into different frequency bands. The amplifiers for each direction of transmission include an automatic gain control circuit for controlling the gain of the amplifier. Gain control for the inward bound amplifier (toward a central location such as a telephone central office) is under the control of an automatic gain control signal derived from the outward bound signal as well as from the inward bound signal. Feedback around the gain control amplifier is accomplished using a current mirror circuit to avoid loading the amplifier output.

    摘要翻译： 公开了一种双向传输线路中继器，其中相反的传输方向被分成不同的频带。 用于每个传输方向的放大器包括用于控制放大器的增益的自动增益控制电路。 用于向内限制放大器（朝向中心位置，例如电话中心局）的增益控制受到从向外限制信号以及从内向限制信号导出的自动增益控制信号的控制。 增益控制放大器周围的反馈是使用电流镜电路来实现的，以避免加载放大器输出。