Time-division multiplex switching network
    3.
    发明授权
    Time-division multiplex switching network 失效
    时分复用交换网络

    公开(公告)号:US4903259A

    公开(公告)日:1990-02-20

    申请号:US222259

    申请日:1988-07-21

    IPC分类号: H04Q11/08

    CPC分类号: H04Q11/08

    摘要: A switching network is constituted by a plurality of time switches which are arranged in a matrix and at cross points between a plurality of input buses and a plurality of output buses, on which frame synchronization signals are multiplexed. Each time switch includes a data memory in which data on the input bus is written in synchronism with the frame synchronization signal included in the input bus, and from which data is read out under the address control of a control memory in synchronization with the frame synchronization signal included in the output bus.

    摘要翻译: 开关网络由多个时间开关构成,多个时间开关以矩阵形式布置在多个输入总线与多个输出总线之间的交叉点,帧同步信号被多路复用。 每次开关包括一个数据存储器,其中输入总线上的数据与包括在输入总线中的帧同步信号同步写入,并且在与帧同步同步的同时在控制存储器的地址控制下从中读出数据 输出总线中包含的信号。

    Time division switching system with time slot alignment circuitry
    4.
    发明授权
    Time division switching system with time slot alignment circuitry 失效
    具有时隙对准电路的时分交换系统

    公开(公告)号:US4894821A

    公开(公告)日:1990-01-16

    申请号:US101759

    申请日:1987-09-28

    IPC分类号: H04J3/06 H04Q11/06

    CPC分类号: H04J3/0629 H04Q11/06

    摘要: In a time division switching system, a reference pulse generator generates constant reference timing pulses for operating a switch. First and second variable phase pulse generators generate first and second trains of variable phase timing pulses. Data signals on a first group of input lines are multiplexed in response to the timing pulses of the first train to produce a first time division multiplexed (TDM) signal and data signals on a second group of the input lines are multiplexed in response to the timing pulses of the second train to produce a second TDM signal. The TDM signals are carried on first and second highways respectively to the space switch. The first and second variable phase pulse generators are controlled so that the timing of each of the first and second TDM signals coincides in the space switch with the reference timing pulse.

    摘要翻译: 在时分切换系统中,参考脉冲发生器产生用于操作开关的恒定参考定时脉冲。 第一和第二可变相位脉冲发生器产生可变相位定时脉冲的第一和第二列。 第一组输入线上的数据信号响应于第一列的定时脉冲被复用以产生第一时分多路复用(TDM)信号,并且响应于定时复用第二组输入线上的数据信号 第二列的脉冲以产生第二TDM信号。 TDM信号分别在第一和第二高速公路上承载到空间交换机。 控制第一和第二可变相位脉冲发生器,使得第一和第二TDM信号中的每一个的定时在空间开关中与基准定时脉冲重合。