Polling system that determines the status of network ports and that
stores values indicative thereof
    12.
    发明授权
    Polling system that determines the status of network ports and that stores values indicative thereof 失效
    轮询系统,用于确定网络端口的状态,并存储指示其的值

    公开(公告)号:US5862338A

    公开(公告)日:1999-01-19

    申请号:US774602

    申请日:1996-12-30

    摘要: A multiport polling system for a network switch including a plurality of network ports, each including receive and transmit buffers. Each port includes port status logic for providing status signals indicative of whether a corresponding port has received data from a network device and whether a corresponding port has available space to receive data to transmit to a network device. The network switch further includes a switch manager for controlling data flow between the ports. The switch manager includes polling logic for periodically polling the port status logic of each port for receiving the status signals, and a memory for storing values indicative of the status signals for each port. In this manner, all of the ports are simultaneously polled in a singe query and the receive and transmit status of each port is maintained in the memory. This facilitates arbitration and control logic, which continuously reviews the memory to determine when to retrieve data from a source port and when to transmit data to one or more destination ports. The ports are preferably implemented with quad cascade devices for providing multiplexed status signals.

    摘要翻译: 一种用于包括多个网络端口的网络交换机的多端口轮询系统,每个网络端口包括接收和发送缓冲器。 每个端口包括端口状态逻辑,用于提供表示相应端口是否已经从网络设备接收到数据的状态信号,以及对应的端口是否具有用于接收数据以发送到网络设备的可用空间。 网络交换机还包括用于控制端口之间的数据流的交换管理器。 交换机管理器包括用于周期性地轮询每个端口的端口状态逻辑以接收状态信号的轮询逻辑,以及用于存储指示每个端口的状态信号的值的存储器。 以这种方式,所有端口同时轮询单个查询,并且每个端口的接收和发送状态保持在存储器中。 这有助于仲裁和控制逻辑,其不断地审查存储器以确定何时从源端口检索数据以及何时将数据发送到一个或多个目的地端口。 这些端口优选地用用于提供多路复用状态信号的四级级联装置来实现。

    Outdoor game and apparatus
    13.
    发明授权
    Outdoor game and apparatus 失效
    户外游戏机器

    公开(公告)号:US4673186A

    公开(公告)日:1987-06-16

    申请号:US839546

    申请日:1986-03-14

    申请人: William J. Walker

    发明人: William J. Walker

    CPC分类号: A63B67/002 A63B59/20

    摘要: An outdoor game and associated apparatus having a plurality of goals, playing balls with holes drilled therein, and tapered elongate shooting sticks used for projecting the balls toward the goals is disclosed. The goals are buckets or mesh baskets elevated above ground level by a ring having a standard projecting therefrom which is insertable into the ground. The playing balls are spherical wooden balls having holes drilled therein. One hole runs through the center of the ball and is open on either end, whereas the second hole is drilled substantially normal and off-center to the first hole. The elongate tapered shooting stick is provided with a grip end and a cylindrical tip end which can be inserted in the holes in the playing balls and is used by a player to project the balls toward the goals by use of an underhand throwing motion. A method of play is also disclosed.

    摘要翻译: 公开了一种具有多个目标的户外游戏和相关联的装置,其中钻有钻孔的打球,以及用于将球投射到目标的锥形细长射击棒。 目标是通过具有从其突出的标准的环可以插入到地面中的高于地面高度的桶或网篮。 玩球是在其中钻孔的球形木球。 一个孔穿过球的中心,并且在任一端打开,而第二个孔基本上是正常的,并且偏离第一个孔。 细长的锥形射击棒设置有握持端和可插入播放球中的孔中的圆柱形末端,并且由玩家使用以通过使用底下投掷运动将球投射到目标。 还公开了一种游戏方法。

    Control apparatus
    14.
    发明授权
    Control apparatus 失效
    控制装置

    公开(公告)号:US4586893A

    公开(公告)日:1986-05-06

    申请号:US699741

    申请日:1985-02-11

    IPC分类号: F23N1/02 F23N5/00

    摘要: The invention is particularly applicable to combustion control apparatus for burners, having a motor-controlled fuel value, and a motor-controlled damper. Coarse control of the damper position is provided by a mechanical profiler, and a trim motor provides fine control of the damper. Overall, the air or fuel is controlled continuously by an up to the minute control signal corresponding to the instantaneous burn rate.

    摘要翻译: 本发明特别适用于具有电动机控制的燃料值的燃烧器的燃烧控制装置和电动控制的阻尼器。 阻尼器位置的粗略控制由机械轮廓仪提供,并且微调电机提供了对阻尼器的精细控制。 总的来说,空气或燃料是通过对应于瞬时燃烧率的分钟控制信号来连续控制的。

    Network switch with a multiple bus structure and a bridge interface for transferring network data between different buses
    17.
    发明授权
    Network switch with a multiple bus structure and a bridge interface for transferring network data between different buses 有权
    具有多总线结构的网络交换机和用于在不同总线之间传送网络数据的网桥接口

    公开(公告)号:US06430626B1

    公开(公告)日:2002-08-06

    申请号:US09630415

    申请日:2000-08-01

    IPC分类号: G06F1516

    摘要: A network switch includes a plurality of first network ports coupled to a first bus, a plurality of second network ports coupled to a second bus, a bridge interface enabling data transfer between the buses, a switch manager controlling the flow of network data, and a processor for performing supervisory and control functions. The first and second network ports operate according to different network protocols, and the first and second buses operate according to different bus standards. During packet data transfers across the first bus, the bridge interface emulates a first network port. During packet data transfers across the second bus, the bridge interface primarily acts as a slave to the second network ports by storing control lists for execution by the second network ports, thus relieving the processor of performing overhead functions associated with data transfers across the second bus.

    摘要翻译: 网络交换机包括耦合到第一总线的多个第一网络端口,耦合到第二总线的多个第二网络端口,能够在总线之间传输数据的桥接器,控制网络数据流的交换机管理器和 处理器用于执行监控和控制功能。 第一和第二网络端口根据不同的网络协议进行操作,第一和第二总线根据不同的总线标准进行操作。 在跨第一总线的分组数据传输期间,网桥接口模拟第一个网络端口。 在跨第二总线的分组数据传输期间,桥接口主要通过存储用于由第二网络端口执行的控制列表作为第二网络端口的从机,从而减轻处理器执行与跨第二总线的数据传输相关联的开销功能 。

    Programmable arbitration system for determining priority of the ports of a network switch
    18.
    发明授权
    Programmable arbitration system for determining priority of the ports of a network switch 失效
    可编程仲裁系统,用于确定网络交换机端口的优先级

    公开(公告)号:US06389480B1

    公开(公告)日:2002-05-14

    申请号:US09628411

    申请日:2000-08-01

    IPC分类号: G06F1516

    摘要: A programmable arbitration system including control logic to select one of several arbitration schemes for selecting the ports of a network switch, a memory to store priority values indicating the relative priority of each of the ports, monitor logic to monitor each of the ports and to program the priority values in the memory based on a priority scheme selected by the control logic, and arbitration logic to select a port having the next highest priority. The arbitration schemes preferably include a round-robin priority scheme, a first-come, first-served (FCFS) priority scheme, a weighted priority scheme, or any other desirable priority scheme. The monitor logic includes polling logic to periodically poll the ports and to program a priority value of each port. The memory includes receive and transmit lists to indicate of which of the ports have indicated needing service and a corresponding priority value. The arbitration logic includes a receive arbiter and a transmit arbiter, each of which use a corresponding arbitration count.

    摘要翻译: 一种可编程仲裁系统,包括用于选择网络交换机的端口的几种仲裁方案之一的控制逻辑,存储器,用于存储指示每个端口的相对优先级的优先级值,监视逻辑以监视每个端口并编程 基于由控制逻辑选择的优先级方案的存储器中的优先级值以及选择具有下一最高优先级的端口的仲裁逻辑。 仲裁方案优选地包括循环优先方案,先来先服务(FCFS)优先权方案,加权优先方案或任何其它所需优先权方案。 监视器逻辑包括轮询逻辑以定期轮询端口并对每个端口的优先级值进行编程。 存储器包括接收和发送列表,以指示哪些端口指示需要服务和相应的优先级值。 仲裁逻辑包括接收仲裁器和发送仲裁器,每个仲裁器使用相应的仲裁计数。

    Network switch with separate cut-through buffer
    19.
    发明授权
    Network switch with separate cut-through buffer 失效
    网络交换机带有独立的直通缓冲区

    公开(公告)号:US06094434A

    公开(公告)日:2000-07-25

    申请号:US774555

    申请日:1996-12-30

    IPC分类号: G06F13/00 H04L12/56 H04L12/66

    摘要: A network switch including a separate cut-through buffer for facilitating cut-through mode of data transfer. The switch further includes a data bus coupled to each of the ports, a memory and a switch manager coupled to the data bus and to the memory for controlling data flow. The switch manager includes a receive buffer for handling data received by the switch, a transmit buffer for handling data to be transmitted by the switch, and a separate cut-through buffer for receiving data at any of the ports and for buffering the data to another one of the ports during cut-through mode of operation. The switch manager includes status memory, which includes programmable receive and transmit mode values for each of the ports, the modes selecting between cut-through and store-and-forward mode of operation for an indicated direction for each port. Control logic operates source and destination ports in cut-through mode if the receive mode value of the source port and the transmit mode value of the destination port have both been programmed to select cut-through mode.

    摘要翻译: 一种网络交换机,其包括用于促进数据传输的直通模式的单独的直通缓冲器。 该开关还包括耦合到每个端口的数据总线,耦合到数据总线的存储器和开关管理器以及用于控制数据流的存储器。 交换机管理器包括用于处理由交换机接收的数据的接收缓冲器,用于处理由交换机发送的数据的发送缓冲器,以及用于在任何端口接收数据并用于将数据缓冲到另一个端口的单独的直通缓冲器 其中一个端口在直通操作模式下。 交换机管理器包括状态存储器,其包括每个端口的可编程接收和发送模式值,所述模式在每个端口的指示方向的切换和存储和转发操作模式之间进行选择。 如果源端口的接收模式值和目标端口的发送模式值都被编程为选择直通模式,则控制逻辑将以切入模式运行源端口和目标端口。