Terminal unit and a terminal unit connecting method in ATM switching
system
    11.
    发明授权
    Terminal unit and a terminal unit connecting method in ATM switching system 失效
    ATM交换系统中的终端单元和终端单元连接方法

    公开(公告)号:US5524000A

    公开(公告)日:1996-06-04

    申请号:US87286

    申请日:1993-07-08

    Abstract: A first terminal unit is connected to a line switch via a set of data lines. A second terminal unit is connected to the first terminal unit via a set of data lines. A third terminal unit is connected to the second terminal unit via a set of data lines. Therefore, the terminals are sequentially connected in series. Cells transmitted to the terminals are multiplexed by each terminal and sequentially transmitted upstream, to the third terminal unit, the second terminal unit, and the first terminal unit together with a token. Since the first terminal unit receives a first identification signal from a switch and a second identification signal from downstream, the first terminal unit recognizes that it is the highest order terminal unit, and sends a cell to the switch after separating the cell from a token which is to be returned downstream. Since the second terminal unit does not receive the first identification signal and receives only the second identification signal, it recognizes that it is an intermediate terminal unit, and sends back downstream a token returned from upstream. Since the third terminal unit does not receive the identification signals, it recognizes that it is the lowest order terminal unit, and sends upstream a cell transmitted via a low data rate line according to a token returned from upstream.

    Abstract translation: 第一终端单元经由一组数据线连接到线路交换机。 第二终端单元经由一组数据线连接到第一终端单元。 第三终端单元经由一组数据线连接到第二终端单元。 因此,端子顺序地串联连接。 发送到终端的小区被每个终端复用,并且与令牌一起顺序地向上游发送到第三终端单元,第二终端单元和第一终端单元。 由于第一终端单元从交换机接收到第一识别信号和从下游接收到第二识别信号,所以第一终端单元识别出它是最高阶终端单元,并且在将信元与令牌分离之后将其发送到交换机 将在下游返回。 由于第二终端单元没有接收到第一识别信号并且仅接收第二识别信号,所以识别为中间终端单元,并向下游发送从上游返回的令牌。 由于第三终端单元没有接收到识别信号,所以识别为最低级终端单元,并且根据从上游返回的令牌向上游发送经由低数据速率线路的小区。

    Congestion-monitor control apparatus and switching system
    13.
    发明授权
    Congestion-monitor control apparatus and switching system 失效
    拥塞监控控制装置和交换系统

    公开(公告)号:US5726987A

    公开(公告)日:1998-03-10

    申请号:US621804

    申请日:1996-03-22

    Abstract: A congestion-monitor control apparatus monitors a congestion condition of each output highway in an asynchronous transfer mode switching system transferring cells to output highways by using a cell-storage buffer. The apparatus includes a monitor circuit monitoring the number of cells stored in the cell-storage buffer for each output highway at a plurality of timings during a given monitor time interval. The apparatus further includes a first determination circuit comparing the number of times when the number of cells from the monitor circuit is equal to or more than a first threshold value during the given monitor time interval with a second threshold value and determining whether the congestion has occurred in a corresponding output highway based on a comparison result.

    Abstract translation: 拥塞监视控制装置通过使用小区存储缓冲器来监视异步传送模式切换系统中的每个输出高速公路的拥堵情况,该异步传输模式切换系统通过使用小区存储缓冲器将小区传送到输出高速公路。 该装置包括在给定的监视时间间隔期间以多个定时监视每个输出高速公路存储在单元存储缓冲器中的单元的数量的监视器电路。 该装置还包括第一确定电路,其比较在具有第二阈值的给定监视时间间隔期间来自监视电路的单元数量等于或大于第一阈值的次数,并且确定是否已发生拥塞 在相应的输出高速公路上基于比较结果。

    Preset virtual path determining method and device in ATM exchange system
    14.
    发明授权
    Preset virtual path determining method and device in ATM exchange system 失效
    ATM交换系统中预设虚拟路径确定方法和设备

    公开(公告)号:US5675587A

    公开(公告)日:1997-10-07

    申请号:US758061

    申请日:1996-11-27

    Abstract: A test cell generating section periodically generates a pass determining test cell at preset timing, multiplexes them with user cells from a user line interface, and transmits the result of multiplexing to an ATM exchange. When no user cell is supplied from the user line interface, the test cell generating section transmits only the pass determining test cell to the ATM exchange. A cell determining section determines whether a cell supplied from the ATM exchange is a user cell or test cell, identifies/determines the pass based on information of the test cell and outputs only the user cell to the user line side when the supplied cell is the test cell.

    Abstract translation: 测试小区生成部分在预定的定时周期性地生成通过确定测试小区,并将其与用户线路接口的用户小区进行复用,并将多路复用结果发送到ATM交换机。 当用户线路接口没有提供用户小区时,测试小区生成部分仅将通过确定测试小区发送到ATM交换机。 小区确定部分确定从ATM交换机提供的小区是否是用户小区或测试小区,当所提供的小区为所述小区时,基于所述测试小区的信息来识别/确定所述通过,并且仅将所述用户小区仅输出到所述用户线路侧 测试单元。

    Self routing exchange and exchange system
    15.
    发明授权
    Self routing exchange and exchange system 失效
    自动路由交换和交换系统

    公开(公告)号:US5555243A

    公开(公告)日:1996-09-10

    申请号:US353499

    申请日:1994-12-09

    Abstract: A self-routing exchange which includes switch modules connected in multiple stages. A synchronous transfer mode (STM) circuit switch module, which is capable of changing over a connection relationship between incoming highways and outgoing highways, is provided between the multistage-connected switch modules and self-routing switch modules. Asynchronous transfer mode (ATM) switch modules are provided as switch modules in preceding and succeeding stages of the circuit switching module. In dependence upon the number m of self-routing switch modules, a controller sets, by means of software, the connection relationship between the incoming and outgoing highways in each of space switches incorporated within the circuit switching module. As a result, the total mn-number of incoming highways from the self-routing switch modules are connected to respective ones of mn-number of outgoing highways set by the controller. In a case where self-routing switch modules are added on later to expand the system, the controller changes the connection relationship between the incoming and outgoing highways in each space switch within the circuit switching module, using software.

    Abstract translation: 自动路由交换机,包括多个阶段连接的交换机模块。 在多级连接的交换机模块和自路由交换机模块之间提供了能够切换进入高速公路和出站高速公路之间的连接关系的同步传输模式(STM)电路交换模块。 在电路交换模块的前级和后续级提供了异步传输模式(ATM)开关模块作为开关模块。 依赖于自路由交换机模块的数量m,控制器通过软件设置结合在电路交换模块中的每个空间交换机中的输入和输出高速公路之间的连接关系。 结果,自路由交换机模块的入站高速公路总数连接到由控制器设置的mn个出站高速公路的各个。 在以后添加自路由交换机模块以扩展系统的情况下,控制器使用软件改变电路交换模块内的每个空间交换机中的输入和输出高速公路之间的连接关系。

    Broadband ISDN remote multiplexer
    16.
    发明授权
    Broadband ISDN remote multiplexer 失效
    宽带ISDN远程多路复用器

    公开(公告)号:US5504742A

    公开(公告)日:1996-04-02

    申请号:US139589

    申请日:1993-10-20

    Abstract: A broadband ISDN remote multiplexer, which is constructed by separating a subscriber line interfacing section from an ATM exchange and installing the same at a remote location connected via a high-speed transmission line, comprises: a first interface unit for carrying out conversion between a transmitted signal of UNI format, carrying a destination number in its GFC field and transmitted over a transmission medium interconnecting the ATM exchange and the broadband ISDN remote multiplexer, and a first path-control signal that directs a connection within the remote multiplexer in accordance with the destination number; a plurality of subscriber line interface units for terminating respectively the plurality of broadband ISDN subscriber lines; and a multiplexing/demultiplexing unit for making a connection between the first interface unit and each of the subscriber line interface units in accordance with the first path-control signal.

    Abstract translation: 宽带ISDN远程多路复用器,其通过将用户线接口部分与ATM交换机分离并将其安装在经由高速传输线路连接的远程位置而构成,包括:第一接口单元,用于在发送的 UNI格式的信号,在其GFC字段中携带目的地号码并通过互连ATM交换机和宽带ISDN远程多路复用器的传输介质传送,以及第一路径控制信号,其根据目的地引导远程多路复用器内的连接 数; 多个用户线接口单元,分别用于终止多个宽带ISDN用户线; 以及复用/解复用单元,用于根据第一路径控制信号在第一接口单元和每个用户线路接口单元之间进行连接。

    Control system for switching duplicated switch units in ATM exchange
    17.
    发明授权
    Control system for switching duplicated switch units in ATM exchange 失效
    用于在ATM交换机中切换复制交换机单元的控制系统

    公开(公告)号:US5301184A

    公开(公告)日:1994-04-05

    申请号:US972025

    申请日:1992-11-06

    Abstract: In a control system for switching between a first system and a second system of a duplicated selecting structure in an ATM exchange, one of the first and second systems operates as an active system, and the other operates as a standby system. A generator unit writes specific bits into ATM cells received via an input transmission line. The specific bits respectively written into ATM cells to be transferred via the active system indicate a first state, and those respectively written into the ATM cells to be transferred via the standby system indicate a second state. A first table stores the specific bits respectively assigned to VPI/VCI pairs related to the ATM cells transferred via the first system. A second table stores the specific bits respectively assigned to VPI/VCI pairs related to the ATM cells transferred via the second system. A selecting unit compares the specific bits written into the ATM cells with the specific bits stored in the first and second tables by using the VPI/VCI pairs of the ATM cells, and outputs only ATM cells respectively having specific bits respectively indicating the first state to an output transmission line.

    Abstract translation: 在用于在ATM交换机中在第一系统和第二系统之间切换复制选择结构的控制系统中,第一和第二系统之一作为活动系统运行,另一个作为备用系统运行。 发生器单元将特定位写入经由输入传输线接收的ATM信元。 分别写入要通过有源系统传送的ATM信元的特定位指示第一状态,分别写入要经由备用系统传送的ATM信元的那些指示第二状态。 第一表存储分配给与通过第一系统传送的ATM信元相关的VPI / VCI对的特定位。 第二表存储分配给与通过第二系统传送的ATM信元相关的VPI / VCI对的特定位。 选择单元通过使用ATM信元的VPI / VCI对将写入ATM信元的特定比特与存储在第一和第二表中的特定比特进行比较,并且仅将分别具有表示第一状态的特定比特的ATM信元仅输出到 输出传输线。

    Packet switch device
    18.
    发明授权
    Packet switch device 失效
    分组交换设备

    公开(公告)号:US07227861B2

    公开(公告)日:2007-06-05

    申请号:US09805545

    申请日:2001-03-13

    Abstract: Packets input from input HWs #0 to #3 to a packet switch device are buried in time slots A through D. The packet switch device alternately switches the input packets in units of time slots, and inputs the packets to two 4×4 switches. The 4×4 switches make normal switching, and distribute the packets to respective output ports. Then, the packets output from the two 4×4 switches after being switched are alternately multiplexed, and output to output HWs #0 through #3. By making switching in units of packets as described above, a process overhead is prevented from being increased, and also expansion can be easily made. Besides, hardware scale can be made small.

    Abstract translation: 从输入HW#0到#3输入到分组交换设备的分组被掩埋在时隙A到D中。分组交换设备以时隙为单位交替地切换输入分组,并将分组输入到两个4×4交换机。 4x4交换机进行正常交换,并将数据包分配到相应的输出端口。 然后,在切换之后从两个4×4交换机输出的分组交替复用,并输出到输出HW#0至#3。 通过如上所述进行分组的切换,防止了处理开销的增加,并且也可以容易地进行扩展。 此外,硬件规模可以减小。

    Address creator and arithmetic circuit
    19.
    发明申请
    Address creator and arithmetic circuit 审中-公开
    地址创建者和算术电路

    公开(公告)号:US20060004980A1

    公开(公告)日:2006-01-05

    申请号:US11034862

    申请日:2005-01-14

    CPC classification number: G06F9/3885 G06F9/345 G06F9/3891

    Abstract: A plurality of address creators are provided corresponding to a plurality of memories of ALU modules. The address creators create addresses for reading or writing data from the memories each time a connection configuration is switched. In creating addresses in the memories, the address creators enable operations to be set by using various types of parameters and set values by mounting special-purpose hardware for memory ports, so that addresses can be created at high-speed.

    Abstract translation: 对应于ALU模块的多个存储器提供多个地址创建者。 每次连接配置切换时,地址创建者创建地址来读取或写入数据。 在创建存储器中的地址时,地址创建者可以通过使用各种类型的参数来设置操作,并通过为存储器端口安装专用硬件设置值,从而可以高速创建地址。

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