Digital phase shifter
    41.
    发明公开
    Digital phase shifter 失效
    数码相变器

    公开(公告)号:EP0384595A3

    公开(公告)日:1991-01-09

    申请号:EP90301097.3

    申请日:1990-02-02

    申请人: STC PLC

    发明人: Naden, James Mark

    IPC分类号: H03K5/13 H03K5/15

    摘要: A digital phase shift arrangement comprising a frequency multiplier (10) to which an input signal can be applied, frequency division means to which the output of the multiplier is applied, the frequency division means (11,12) being arranged to produce a plurality of outputs of identical frequency each delayed by a different amount with respect to the input frequency and means (13,14) for selecting one of the outputs of the frequency division means.

    摘要翻译: 一种数字相移装置,包括可以施加输入信号的倍频器(10),施加乘法器的输出的分频装置,分频装置(11,12)被布置成产生多个 每个相对于输入频率延迟不同量的相同频率的输出和用于选择分频装置的输出之一的装置(13,14)。

    Fibre optic transmission system
    42.
    发明公开
    Fibre optic transmission system 失效
    FaseroptischesÜbertragungssystem。

    公开(公告)号:EP0385649A1

    公开(公告)日:1990-09-05

    申请号:EP90301865.3

    申请日:1990-02-21

    IPC分类号: H04B10/08

    摘要: A passive distribution system for electromagnetic radiation using waveguides (10) and couplers (20) wherein radiation from a source (11) is distributed to a number of destination points (12, 13), including means at destination points for determining the power levels received at the destination points and means for transmitting from the destination points to the source location information representing said received power levels.

    摘要翻译: 一种用于使用波导(10)和耦合器(20)的电磁辐射的被动分配系统,其中来自源(11)的辐射被分配到多个目的地点(12,13),包括在目的地点处的装置,用于确定接收到的功率电平 在目的地点和用于从目的地点发送到表示所述接收功率电平的源位置信息的装置。

    Cross-connect core switch and method for increasing its capacity
    43.
    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

    申请人: STC PLC

    IPC分类号: H04Q11/04

    CPC分类号: H04Q11/04

    摘要: 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.

    摘要翻译: 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。

    Hermetic gland for optical fibres
    44.
    发明公开
    Hermetic gland for optical fibres 失效
    HermetischeDurchführungfüroptische Fasern。

    公开(公告)号:EP0383511A2

    公开(公告)日:1990-08-22

    申请号:EP90301449.6

    申请日:1990-02-12

    IPC分类号: G02B6/44

    CPC分类号: G02B6/4428 G02B6/4248

    摘要: An optical fibre gland for a submerged repeater comprising an insulating body (1) having a bore (4) accommodating a pressure tube (5). A high pressure end fitting (8) is secured to the tube and the body and a low pressure end fitting (12) is secured only to the tube. The tube and fibres are water and gas blocked and the construction is such as to enable the gland to operate satisfactorily over a wide temperature range.

    摘要翻译: 一种用于浸没式转发器的光纤密封套,包括具有容纳压力管(5)的孔(4)的绝缘体(1)。 高压端配件(8)固定到管和主体上,低压端配件(12)仅固定在管上。 管和纤维是水和气体阻塞的,并且构造是使得压盖能够在宽的温度范围内令人满意地运行。

    Dual-band circularly polarised antenna with hemispherical coverage
    45.
    发明公开
    Dual-band circularly polarised antenna with hemispherical coverage 失效
    双带圆形极化天线,具有HEMISPHERAL覆盖

    公开(公告)号:EP0270209A3

    公开(公告)日:1990-06-13

    申请号:EP87307944.6

    申请日:1987-09-09

    IPC分类号: H01Q9/04 H01Q5/00 H01Q21/24

    CPC分类号: H01Q21/24 H01Q5/42 H01Q9/0407

    摘要: A circularly polarised antenna including first and second multiple patch antenna structures dimensioned to operate at two distinct frequencies, each antenna structure consisting of four shorted patches, the patches (11a) of the first structure being spaced from a ground plane (10) by dielectric material (12), the patches (14a) of the second structure being spaced from the patches of the first structure by dielectric material (13), the patches of the second structure each overlying a corresponding patch of the first structure and each having a dimension λ m (2) /4 which is less than the dimension λ m (1) /4 of the corresponding patch of the first structure, with feed means (16a, 17a) for each of the patches, the patches of both structures being disposed in the planes of the patches so that the radiating edges of the two patch structures form superimposed antenna structures.

    A digital telephone switching system having a message switch with address translation
    46.
    发明公开
    A digital telephone switching system having a message switch with address translation 失效
    具有地址转换的信息开关的数字电话切换系统

    公开(公告)号:EP0282197A3

    公开(公告)日:1990-05-30

    申请号:EP88301527.3

    申请日:1988-02-23

    IPC分类号: H04Q11/04

    CPC分类号: H04Q11/0407

    摘要: The invention provides a communications system comprising a plurality of functional units including a switching network and peripheral units, and a message switch comprising a processor and data port circuits for interfacing with respective ones of the functional units. The message switch is adapted for interconnecting any one of the functional units with any other of the functional units. The data port circuits are connected to a transaction bus internal to the message switch and are respectively addressable by a physical address contained in the header of each message to be routed. The routing header of each message comprises a physical address and a logical address. The message switch also comprises a mapper circuit addressable by a predetermined physical address for translating the logical address to a physical address and for replacing the predetermined physical address with the translated physical address while the message data is retained in a source port message buffer.

    A digital telephone switching system having a message switch with address translation
    50.
    发明公开
    A digital telephone switching system having a message switch with address translation 失效
    Digitales Fernsprechvermittlungssystem mit einem Nachrichtenverteiler mit Adressenumsetzung。

    公开(公告)号:EP0282197A2

    公开(公告)日:1988-09-14

    申请号:EP88301527.3

    申请日:1988-02-23

    IPC分类号: H04Q11/04

    CPC分类号: H04Q11/0407

    摘要: The invention provides a communications system comprising a plurality of functional units including a switching network and peripheral units, and a message switch comprising a processor and data port circuits for interfacing with respective ones of the functional units. The message switch is adapted for interconnecting any one of the functional units with any other of the functional units. The data port circuits are connected to a transaction bus internal to the message switch and are respectively addressable by a physical address contained in the header of each message to be routed. The routing header of each message comprises a physical address and a logical address. The message switch also comprises a mapper circuit addressable by a predetermined physical address for translating the logical address to a physical address and for replacing the predetermined physical address with the translated physical address while the message data is retained in a source port message buffer.

    摘要翻译: 本发明提供了一种包括多个功能单元的通信系统,包括交换网络和外围单元,以及消息交换机,其包括用于与各个功能单元接口的处理器和数据端口电路。 消息交换机适于将任何一个功能单元与任何其他功能单元互连。 数据端口电路连接到消息交换机内部的事务总线,并且可分别通过包含在要路由的每个消息的报头中的物理地址来寻址。 每个消息的路由头包括物理地址和逻辑地址。 消息交换机还包括映射器电路,其可由预定的物理地址寻址,用于将逻辑地址转换为物理地址,并且在消息数据保留在源端口消息缓冲器中时,用已翻译的物理地址替换预定的物理地址。