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    • 7. 发明授权
    • Apparatus for testing ATM channels
    • ATM通道测试装置
    • US5313453A
    • 1994-05-17
    • US854888
    • 1992-03-20
    • Yoshihiro UchidaSatoshi KakumaNaoyuki IzawaYasuhiro AsoShuji YoshimuraMasami Murayama
    • Yoshihiro UchidaSatoshi KakumaNaoyuki IzawaYasuhiro AsoShuji YoshimuraMasami Murayama
    • H04L1/00H04L12/26H04L12/56H04Q11/04H04J3/14
    • H04L12/5601H04L1/0083H04L12/2697H04L43/50H04L49/1553H04L49/255H04L49/309H04Q11/0478H04J2203/0019H04L2012/5628H04L2012/5672H04L2012/5681
    • A first form of an ATM channel testing apparatus tests an ATM channel by having a test cell detector in each switch to detect whether or not the switch appropriately switches a test cell generated by a test cell generating trunk. A second form of an ATM channel testing apparatus easily tests an ATM channel by having test cell generators provided for the respective input highways sequentially generating test cells including test cell identifying information and input highway identifying information, and having test cell checkers provided respectively for the output highways simply tally the test cells by the respective input highways. A third form of an ATM channel testing apparatus tests an ATM channel with less pieces of hardware by having turnaround parts in respective ordinary trunks sequentially turn around a test cell generated by a test cell generating trunk to be finally returned to the test cell generating trunk. A fourth form of an ATM channel testing apparatus tests an ATM channel by having a test cell checker provided for each of output highways to examine whether or not the test data carried in respective octets of the payloads in extracted test cells are of consecutive values.
    • ATM信道测试装置的第一形式通过在每个交换机中具有测试小区检测器来检测ATM信道,以检测交换机是否适当地切换由测试小区产生的中继线产生的测试小区。 ATM信道测试装置的第二种形式通过为相应的输入高速公路提供测试单元发生器来容易地测试ATM信道,该测试单元发生器依次产生包括测试单元识别信息和输入公路识别信息的测试单元,并且具有分别为输出提供的测试单元检查器 高速公路通过相应的输入高速公路简单地测试单元格。 ATM信道测试装置的第三种形式通过在相应的普通中继线中具有周转部分来顺序地转换由测试小区生成中继线产生的测试小区,以最终返回到测试小区生成中继线,来测试具有较少硬件的ATM信道。 ATM信道测试装置的第四种形式通过为每个输出高速公路提供测试单元检查来检测ATM信道,以检查提取的测试小区中有效载荷的相应八位字节中承载的测试数据是否是连续值。
    • 10. 发明授权
    • Self routing exchange and exchange system
    • 自动路由交换和交换系统
    • US5555243A
    • 1996-09-10
    • US353499
    • 1994-12-09
    • Satoshi KakumaShiro UriuNoriko SamejimaMasami MurayamaNoaki Fukuda
    • Satoshi KakumaShiro UriuNoriko SamejimaMasami MurayamaNoaki Fukuda
    • H04M3/00H04L12/64H04L12/931H04Q3/00H04Q11/04
    • H04L49/1515H04L12/6402H04L49/10H04L49/1553H04L49/606H04Q11/0478H04J2203/0012H04L49/254
    • 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.
    • 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。