Time-division multiplex switching circuitry

    公开(公告)号:US3999162A

    公开(公告)日:1976-12-21

    申请号:US181953

    申请日:1971-09-20

    申请人: Guy Le Roy

    发明人: Guy Le Roy

    摘要: Switching circuitry for transferring data from an input time-division multiplex system to an output time-division multiplex system includes a transfer circuit for temporarily storing the data received from the input-time-division multiplex system prior to its transfer to the output time-division multiplex system. For controlling the selective transfer of data from an input channel of the input time-division multiplex system to any one output channel of the output time-division multiplex system control circuitry is provided which controls the storage of the input channel data in a selected position of the transfer circuit with a timing corresponding to the respective time slots of the input channel and controls the transfer of that data from the selected position in the transfer circuit to the output time-division multiplex system with a timing corresponding to the respective time slot selected output channel. Write control circuitry stores in a write control memory the selected position in the transfer circuit in a word of the control memory corresponding to the time slot of the input channel in the input time-division multiplex system so that in response to time slots generated by an input time slot generator, the position address of the word in the control memory can be applied to the transfer circuit to control writing of data from the input channel into the transfer circuit in the position selected. Read control circuitry includes a read control memory wherein the selected position in the transfer circuit is stored in a word of that read control memory corresponding to the time slot of the output channel in the output time-division multiplex system so that data in the selected position of the tranfer circuit can be read out to the output time-division multiplex system at the proper time. The read and write control arrangements can also be constituted by elementary control memories connected to elementary inputs or outputs of the input and output multiplex circuitry.

    Optical selector and an optical link including the selector
    12.
    发明授权
    Optical selector and an optical link including the selector 失效
    光选择器和包括选择器的光链路

    公开(公告)号:US5655037A

    公开(公告)日:1997-08-05

    申请号:US343944

    申请日:1994-11-17

    IPC分类号: G02F1/313 G02B6/26

    CPC分类号: G02F1/313

    摘要: Selection switches (C1, . . . , C3-4) enable an optical path (BC, C1, C2-1, C3-1, D1, B1) to be selected from a plurality of such paths predefined on a common substrate (PE), each of the switches belonging to a plurality of such paths for that purpose. Isolation switches (D1, . . . , DN) each belong to one such path only. The isolation switches are disposed at the ends of the paths so as to enable the selected path to be isolated from optical members (LEN) that are outside the selector and that are connected to the non-selected paths. In this way crosstalk is avoided. The invention applies in particular to backing up an optical link.

    摘要翻译: 选择开关(C1,...,C3-4)使光路(BC,C1,C2-1,C3-1,D1,B1)能够从公共衬底(PE)上预定义的多个这样的路径中选择 ),为了该目的,每个开关属于多个这样的路径。 隔离开关(D1,...,DN)各自属于一个这样的路径。 隔离开关设置在路径的末端,以便使所选择的路径能够与选择器之外的光学构件(LEN)隔离并且连接到未选择的路径。 以这种方式避免了串扰。 本发明特别适用于备份光链路。

    System for connecting optical lines to a wideband telecommunications
exchange
    13.
    发明授权
    System for connecting optical lines to a wideband telecommunications exchange 失效
    将光线连接到宽带通信交换机的系统

    公开(公告)号:US5086348A

    公开(公告)日:1992-02-04

    申请号:US444356

    申请日:1989-12-01

    申请人: Guy Le Roy

    发明人: Guy Le Roy

    摘要: The connection system includes at least one connection assembly having at least one connection module with a connection capacity of N optical lines. A connection module comprises first, second, and third optical switch assemblies (C11 to C1n, C21 to C2n, and C31, C32). The first assembly is connected to the N optical lines, the second assembly is connected firstly to the first assembly and secondly to the junctors and the spare junctors associated with the N optical lines, and the third assembly is connected firstly to the first assembly and secondly to at least one test circuit via a line test optical fiber and via a junctor test optical fiber. When using narrowband optical switches, there are two switching assemblies, one for transmission and the other for reception of the signals conveyed by the optical lines, when using wideband optical switches, then a single switching assembly is used both for transmission and for reception, i.e. for both call directions.

    摘要翻译: 连接系统包括至少一个连接组件,其具有至少一个具有N条光学线路的连接容量的连接模块。 连接模块包括第一,第二和第三光学开关组件(C11至C1n,C21至C2n,以及C31,C32)。 第一组件连接到N条光纤线路,第二组件首先连接到第一组件,其次连接到与N条光纤线路相关联的接头和备用接头,第三组件首先连接到第一组件,其次 通过线路测试光纤至少一个测试电路,并通过连接器测试光纤。 当使用窄带光开关时,有两个开关组件,一个用于传输,另一个用于接收光线传输的信号,当使用宽带光开关时,则单个开关组件用于传输和接收,即 两个呼叫方向。

    N by N type optical diffuser and coupling network
    14.
    发明授权
    N by N type optical diffuser and coupling network 失效
    N型N型光扩散器和耦合网络

    公开(公告)号:US4867519A

    公开(公告)日:1989-09-19

    申请号:US288165

    申请日:1988-12-22

    IPC分类号: G02B6/28 H04Q3/52

    CPC分类号: G02B6/2804

    摘要: The diffuser is made from N=2.sup.n light ducts divided into two sets of 1/2N ducts, with every other duct belonging to a different one of the sets. The two sets of ducts are helically wound in opposite directions but at the same helical pitch over a cylinder (1). Each duct in either set crosses over the 1/2N ducts in the other set, and couplers are provided at those cross-overs between any given duct and the 1/2N ducts of the other set having cross-over numbers 2.sup.q, where q=0, 1, 2, . . . , (n-1). The diffuser has stages each comprising 1/2N couplers, with each stage being disposed in a ring around the cylinder.

    摘要翻译: 扩散器由分为两组1 / 2N导管的N = 2n个光导管制成,其他管道属于不同的一组。 两组导管在相反方向螺旋缠绕,但在圆柱体(1)上以相同的螺旋间距螺旋缠绕。 任一组中的每个管道跨越另一组中的1 / 2N管道,并且在任何给定管道和具有交叉数2q的另一组的1 / 2N管道之间的那些交叉处提供耦合器,其中q = 0,1,2,... 。 。 ,(n-1)。 扩散器具有各自包括1 / 2N耦合器的阶段,每个阶段围绕圆柱体设置在环中。