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    Cross-connect core switch and method for increasing its capacity
    81.
    发明公开
    Cross-connect core switch and method for increasing its capacity 失效
    Kern-Verzweigerschalter und Verfahren zumVergrössernseinerKapazität。

    公开(公告)号：EP0384581A1

    公开(公告)日：1990-08-29

    申请号：EP90300834.0

    申请日：1990-01-26

    Applicant: STC PLC

    Inventor： Jessop, Anthony ,  Sexton, Michael James

    IPC: H04Q11/04

    CPC classification number: H04Q11/04

    Abstract: A cross connect core switch comprises two or more sub-assemblies (41, 42) each of which includes a plurality of core cards associated with a back plane having a respective multiline bus (31, 32). Means (38, 39, 43) are provided on each core card of a sub-assembly so that each core card can assemble outputs from the bus lines of both or all sub-assemblies rather than just the bus lines on its own back plane.

    Abstract translation: 交叉连接芯开关包括两个或更多个子组件（41,42），每个子组件包括与具有相应多线总线（31,32）的背板相关联的多个芯卡。 装置（38,39,43）设置在子组件的每个芯卡上，使得每个芯卡可以组装来自两个或所有子组件的总线的输出，而不是仅在其自身背面上的总线。

    Coherent mixing of optical signals
    86.
    发明公开
    Coherent mixing of optical signals 失效
    光信号的相干混合

    公开(公告)号：EP0256647A3

    公开(公告)日：1990-03-28

    申请号：EP87305947.1

    申请日：1987-07-06

    Applicant: STC PLC

    Inventor： Epworth, Richard Edward ,  Wright, Stephen ,  Bricheno, Terry

    IPC: H04B10/00

    CPC classification number: H04B10/60

    Abstract: A non-circularly-symmetric intensity distribution is formed on a quadrant photodetector by coherently mixing two optical signals propagating in selected modes of different order. These modes are chosen either such that a change in relative phase of the two signals produces solely a rotation of the orientation of that intensity distribution, or such that a change in relative states of polarisation produces this rotation.

    Automatic telecommunication switching system
    88.
    发明公开
    Automatic telecommunication switching system 失效
    自动电信交换系统

    公开(公告)号：EP0241152A3

    公开(公告)日：1989-08-09

    申请号：EP87302135.6

    申请日：1987-03-12

    Applicant: STC PLC

    Inventor： Carter,CliveRonald ,  Phillips, David

    IPC: H04L11/20

    CPC classification number: H04L49/15 ,  H04L49/101 ,  H04L49/254 ,  H04L49/30 ,  H04L49/555

    Abstract: An automatic telecommunication switching system handles all communications, whether voice or data, in packet switching manner. The switching network consists of a multi-stage network of co-ordinate matrix elements each of which has memory and processing means. Such an element is a single-chip VLSI device. Each packet has a header which includes the address of the network outlet to which that packet is to be routed, each such address consisting of a digit for each stage via which the packet is to be routed. At each matrix element the appropriate digit of that address is used to route the packet to the appropriate outlet from the matrix element.

    Abstract translation: 自动电信交换系统以分组交换的方式来处理语音或数据的所有通信。 交换网络由具有各自具有存储器和处理装置的坐标矩阵元素的多级网络组成。 这样的元件是单芯片VLSI器件。 每个分组具有包括该分组要被路由到的网络出口的地址的报头，每个这样的地址由用于要被路由的分组的每个阶段的数字组成。 在每个矩阵元素处，该地址的适当数字用于将数据包路由到矩阵元素的相应出口。

    Resonator device
    89.
    发明公开
    Resonator device 失效
    谐振器装置谐振器装置

    公开(公告)号：EP0244086A3

    公开(公告)日：1989-07-19

    申请号：EP87302706.4

    申请日：1987-03-30

    Applicant: STC PLC

    Inventor： Greenwood, John Christopher

    IPC: G01L1/10 ,  G01L1/16 ,  G01L7/02

    CPC classification number: G01L9/0014 ,  G01L1/103 ,  G01L1/186 ,  G01L9/002 ,  Y10S73/01

    Abstract: A strain or pressure responsive transducer comprises a pair of elongate beam resonators arranged end to end and provided with a flexible coupling therebetween. The arrangement oscillates e.g. in a double see-saw or butterfly mode. The transducer is disposed on a diaphragm whereby strain may be transmitted to the oscillatory system. The frequency of oscillation is a function of this strain.

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