Method for collecting information about physical constitution of lan
system, method of specifying collision terminals, and method for
detecting noise-generated position
    1.
    发明授权
    Method for collecting information about physical constitution of lan system, method of specifying collision terminals, and method for detecting noise-generated position 失效
    用于收集关于lan系统的体质信息的方法,用于指定碰撞终端的方法以及用于检测噪声产生位置的方法

    公开(公告)号:US6122257A

    公开(公告)日:2000-09-19

    申请号:US815854

    申请日:1997-03-12

    摘要: In a bus type LAN, the data transmitted from a terminal (14) is detected by an adapter (1) connected to one end of a bus (3), and in response thereto the adapter (1) transmits a pulse signal onto the bus (3). An adapter (2) connected to the other end of the bus (3) receives the data transmitted from the terminal (14) and detects its source terminal address. A difference in time between the arrival of the data from the terminal (14) and the arrival of the pulse signal from the adapter (1) is measured by a counter circuit (21), and the count value obtained is stored in a memory (23), forming a pair with the corresponding source terminal address. Thus, the count value can be obtained for each terminal during the normal operation of the LAN. The data of the memory (23) are extracted by a personal computer (5), where the physical position of each terminal is calculated in accordance with the bus propagation velocity, and is displayed or printed out as a physical constitution diagram. Also, the packet signal, its collision signal, the jam signal and the pulse signal are utilized to measure the difference in time for the arrival of the pulse signal and so forth, to thereby specify the terminal having caused the packet collision.

    摘要翻译: PCT No.PCT / JP95 / 01803 Sec。 371日期1997年3月12日 102(e)1997年3月12日PCT PCT 1995年9月12日PCT公布。 公开号WO96 / 08897 日期1996年3月21日在总线型LAN中,从连接到总线(3)的一端的适配器(1)检测从终端(14)发送的数据,并且响应于适配器(1)发送 脉冲信号到总线上(3)。 连接到总线(3)的另一端的适配器(2)接收从终端(14)发送的数据并检测其源终端地址。 通过计数器电路(21)测量来自终端(14)的数据的到达与来自适配器(1)的脉冲信号的到达之间的时间差,将获得的计数值存储在存储器 23),与对应的源终端地址形成一对。 因此,在LAN的正常操作期间可以为每个终端获得计数值。 存储器(23)的数据由个人计算机(5)提取,其中根据总线传播速度计算每个终端的物理位置,并作为物理结构图被显示或打印出来。 此外,分组信号,其冲突信号,阻塞信号和脉冲信号用于测量脉冲信号等到达时间的差异,从而指定引起分组冲突的终端。

    COMPOSITE ELECTRIC CABLE AND PROCESS FOR PRODUCING SAME
    3.
    发明申请
    COMPOSITE ELECTRIC CABLE AND PROCESS FOR PRODUCING SAME 有权
    复合电缆及其制造方法

    公开(公告)号:US20120267141A1

    公开(公告)日:2012-10-25

    申请号:US13515671

    申请日:2011-01-20

    摘要: A composite electric cable including a plurality of element wires twisted together. The element wires include a material wire formed of a composite material containing an aluminum material and carbon nanotubes dispersed in the aluminum material; the material wire has a cellulation structure including a wall portion containing the carbon nanotubes and an inside portion of the wall which is surrounded by the wall portion and which comprises the aluminum material and unavoidable impurities; the material wire has a ratio of carbon nanotube content to aluminum material content of 0.2 wt. % to 5 wt. %; and each of all the element wires forming the composite electric cable is the material wire, or the composite electric cable includes in a center portion thereof one or a plurality of steel wires.

    摘要翻译: 一种复合电缆,包括扭绞在一起的多个元件线。 元件线包括由包含铝材料和分散在铝材料中的碳纳米管的复合材料形成的材料线; 该材料线具有包括含有碳纳米管的壁部分和由壁部包围的壁的内部的细胞结构,其包含铝材料和不可避免的杂质; 材料导线的碳纳米管含量与铝材料含量的比例为0.2wt。 %至5wt。 %; 并且形成复合电缆的所有元件线中的每一个都是材料线,或者复合电缆在其中心部分包​​括一根或多根钢丝。

    Vertical cavity surface emitting laser device
    4.
    发明授权
    Vertical cavity surface emitting laser device 有权
    垂直腔表面发射激光器件

    公开(公告)号:US06700914B2

    公开(公告)日:2004-03-02

    申请号:US09871586

    申请日:2001-05-30

    IPC分类号: H01S500

    CPC分类号: H01S5/18313 H01S5/02461

    摘要: A vertical cavity surface emitting laser (VCSEL) device includes a pair of diffusion Bragg reflectors (DBRs) sandwiching therebetween a multiple quantum well (MQW) comprising active layers. The bottom DBR includes a lower layer structure having AlAs layers having a higher thermal conductivity and AlGaAs layers in pair and an upper layer structure acting anti-oxidation layers and having a pair of AlGaAs layers having different Al contents. A selectively oxidized AlAs layer disposed as the top layer of the bottom DBR comprises an Al-oxidized area and a non-oxidized layer for confinement of current injection path.

    摘要翻译: 垂直腔表面发射激光器(VCSEL)器件包括一对在其间夹着包括有源层的多量子阱(MQW)的扩散布拉格反射器(DBR)。 底部DBR包括具有较高热导率的AlAs层和成对的AlGaAs层的下层结构,以及作用于抗氧化层并具有不同Al含量的一对AlGaAs层的上层结构。 设置为底部DBR的顶层的选择性氧化的AlAs层包括用于限制电流注入路径的Al氧化区域和非氧化层。