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    Packet framer
    1.
    发明授权
    Packet framer 失效
    数据包成帧器

    公开(公告)号：US5524116A

    公开(公告)日：1996-06-04

    申请号：US497189

    申请日：1995-06-30

    申请人： Charles R. Kalmanek, Jr. ,  William T. Marshall

    发明人： Charles R. Kalmanek, Jr. ,  William T. Marshall

    IPC分类号： H04L1/00 ,  G06F11/10

    CPC分类号： H04L1/0061 ,  H04L1/0045 ,  H04L1/0072 ,  H04L1/008

    摘要： A frame layer communications system for packet-switched virtual circuits that provides error detection when the link layer both corrupts and discards cells. An illustrative embodiment of the invention provides two error detection mechanisms: the first for the user-data and the second for certain control information. When the frame is segmented into cells, the control information and information relating to the second error detection mechanism are segmented into a single cell.

    摘要翻译： 用于分组交换虚拟电路的帧层通信系统，当链路层破坏和丢弃小区时，提供错误检测。 本发明的说明性实施例提供了两种错误检测机制：第一种用于用户数据，第二种用于某些控制信息。 当帧被分割成单元时，控制信息和与第二错误检测机构有关的信息被分割为单个单元。

    Data flow control arrangement for local area network
    2.
    发明授权
    Data flow control arrangement for local area network 失效
    局域网的数据流控制布置

    公开(公告)号：US4787082A

    公开(公告)日：1988-11-22

    申请号：US890262

    申请日：1986-07-24

    申请人： Robert H. Delaney ,  Alexander G. Fraser ,  Charles R. Kalmanek, Jr. ,  Robert C. Restrick, III

    发明人： Robert H. Delaney ,  Alexander G. Fraser ,  Charles R. Kalmanek, Jr. ,  Robert C. Restrick, III

    IPC分类号： H04L12/46 ,  H04L12/56 ,  H04J3/02

    CPC分类号： H04L47/10 ,  H04L12/46

    摘要： In a local data distribution network configuration a plurality of bidirectional data distribution busses are each connected to a bus master control circuit at a terminal end of the bus. Connected to each of the data distribution busses are a plurality of passive outlets to which intelligent connectors or stations may be connected. Each station has a unique address and is utilized for individually coupling data processing devices to the bus. Grouped pluralities of the bus master control circuits are included within a bus termination hub facility. Data from any of the bus master control circuits may be transferred by the bus termination hub via a data trunk as part of a star type configuration, to a central switching circuit such as a virtual circuit switch. Direction of data flow on each of the bidirectional busses and periodic temporary synchronization of the stations is controlled in response to signals transmitted to the bus by the bus master control circuitry associated with that bus. A bus termination hub switching facility cooperates with the included group of bus master control circuits to interconnect data processing stations on the various busses with the virtual circuit switch via the trunk line and with each other.The bus termination hub facility further includes bus monitoring, status polling and maintenance facilities. A faulty bus will be disconnected if a fault is discovered during monitoring intervals. It will remain disconnected until the fault is corrected.

    摘要翻译： 在本地数据分配网络配置中，多个双向数据分配总线各自连接到总线终端处的总线主控制电路。 连接到每个数据分发总线的是多个可以连接智能连接器或站的被动出口。 每个站具有唯一的地址，并用于将数据处理设备单独耦合到总线。 总线主控制电路的分组多个被包括在总线终端集线器设备内。 来自任何总线主控制电路的数据可以由总线终端集线器经由作为星型配置的一部分的数据中继线传送到诸如虚拟电路交换机的中央交换电路。 响应于与总线相关联的总线主控制电路发送到总线的信号，来控制各个双向总线上的数据流的方向和站的周期性暂时同步。 总线终端集线器交换设备与所包括的总线主控制电路组合配合，以便通过主干线和彼此将各种总线上的数据处理站与虚拟电路交换机互连。 巴士终点枢纽设施还包括巴士监控，状态查询和维护设施。 如果在监控期间发现故障，故障总线将断开。 它将保持断开，直到故障得到纠正。

    Method and apparatus for generating a set of aggregates
    3.
    发明授权
    Method and apparatus for generating a set of aggregates 有权
    用于生成一组聚集体的方法和装置

    公开(公告)号：US07904571B1

    公开(公告)日：2011-03-08

    申请号：US11444034

    申请日：2006-05-31

    申请人： Charles R. Kalmanek, Jr. ,  Guangzhi Li ,  Aman M. Shaikh ,  Jennifer M. Yates ,  Dongmei Wang

    发明人： Charles R. Kalmanek, Jr. ,  Guangzhi Li ,  Aman M. Shaikh ,  Jennifer M. Yates ,  Dongmei Wang

    IPC分类号： G06F15/16

    CPC分类号： H04L45/48 ,  H04L41/0823 ,  H04L45/00 ,  H04L45/02 ,  H04L45/7457

    摘要： A method and apparatus for generating at least one aggregate (e.g., a set of aggregates) for a given area of a network such that the number of aggregates is minimized subject to a maximum acceptable path selection error are disclosed. One operational benefit of the present method is that network administrators can select aggregates for an area based solely on the topology of the area without worrying about remaining areas of the OSPF network. Another benefit is that the present method enables trade-offs between the number of aggregates and the bound on the path selection error.

    摘要翻译： 公开了一种用于为网络的给定区域生成至少一个聚合（例如，一组聚合）集合的方法和装置，使得聚合的数量在最大可接受路径选择误差的情况下被最小化。 本方法的一个操作优点是网络管理员可以仅基于该区域的拓扑来选择一个区域的聚合，而不用担心OSPF网络的剩余区域。 另一个好处是，本方法能够实现聚合数量与路径选择误差界限之间的权衡。

    Method of on-line permanent virtual circuit routing
    6.
    发明授权
    Method of on-line permanent virtual circuit routing 失效
    在线永久虚拟电路路由方法

    公开(公告)号：US5519836A

    公开(公告)日：1996-05-21

    申请号：US218015

    申请日：1994-03-25

    申请人： Rainer Gawlick ,  Charles R. Kalmanek, Jr. ,  Kajamalai G. Ramakrishnan

    发明人： Rainer Gawlick ,  Charles R. Kalmanek, Jr. ,  Kajamalai G. Ramakrishnan

    IPC分类号： H04L12/56 ,  H04Q11/04 ,  G05B13/02 ,  H04M9/06 ,  H04Q3/00

    CPC分类号： H04L45/10 ,  H04L49/256 ,  H04Q11/0478

    摘要： A method of on-line routing of permanent virtual circuits is disclosed. The method uses an exponential cost function based on the network state and virtual circuit parameters to determine paths for the virtual circuits without scaling. The method may also advantageously use information available when multiple virtual circuits are requested to determine paths for the virtual circuits. Additionally, the method allows the routing selection to be refined so that the total cost of routing all the virtual circuits is reduced.

    摘要翻译： 公开了永久虚拟电路的在线路由的方法。 该方法使用基于网络状态和虚拟电路参数的指数成本函数来确定虚拟电路的路径，而不进行缩放。 当请求多个虚拟电路以确定虚拟电路的路径时，该方法还可以有利地使用可用的信息。 另外，该方法允许对路由选择进行细化，从而降低路由所有虚拟电路的总成本。

    Local area network with biasing arrangement for facilitating access contention between work stations connected to a common bus
    8.
    发明授权
    Local area network with biasing arrangement for facilitating access contention between work stations connected to a common bus 失效
    具有偏置布置的局域网，用于促进连接到公共总线的工作站之间的访问争用

    公开(公告)号：US4841295A

    公开(公告)日：1989-06-20

    申请号：US890260

    申请日：1986-07-24

    申请人： Robert H. Delaney ,  Charles R. Kalmanek, Jr. ,  Robert C. Restrick, III

    发明人： Robert H. Delaney ,  Charles R. Kalmanek, Jr. ,  Robert C. Restrick, III

    IPC分类号： G06F13/40 ,  G06F3/00 ,  G06F13/374 ,  H04L12/413

    CPC分类号： H04L12/40032 ,  H04L12/4135

    摘要： A local area data distribution system includes a plurality of data processing stations connected to a common bus. Individual data processing stations contend with each other for access to the bus while the bus is held at a predetermined and controlled but overridable logic state by applying their priority code bit by bit to the bus and comparing the logic state of the bus with the bit they are applying thereto. A biasing arrangement holds the bus at the predetermined and controlled logic state during the contention interval at a signal level that may be easily overridden by an output of any one of the individual data processing stations.

    摘要翻译： 局域数据分配系统包括连接到公共总线的多个数据处理站。 当总线通过将总线的位优先级逐位地应用到总线并将总线的逻辑状态与它们的位相比较时，各个数据处理站相互对抗以访问总线，同时总线被保持在预定和受控但可覆盖的逻辑状态 正在申请。 偏置装置在争用间隔期间将总线保持在预定和受控的逻辑状态，信号电平可以容易地被单独数据处理站中的任一个的输出覆盖。