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    • 7. 发明授权
    • Switching arrangement for telephone exchange-installation
    • 电话交换安装的开关装置
    • US3655922A
    • 1972-04-11
    • US3655922D
    • 1968-10-18
    • SIEMENS AG
    • GERKE PETERRUTKOWSKI KARLBOCK HELMUTH JOACHIM
    • H04Q3/545H04Q3/42
    • H04Q3/545
    • A telephone exchange installation wherein information is transmitted between a central control mechanism and individual apparatus over a two-stage transmission network including buffer storage means interposed between the two stages. Information is transmitted in parallel code between the buffer storage means and the individual apparatus which utilizes relatively inexpensive and relatively slow-working switching elements. Information is transmitted in series code between the buffer storage means and the central control mechanism which utilizes electronic, relatively fast-working switching elements. Optimum utilization of the telephone exchange equipment is thereby achieved by adjusting for the differing speed of operation of the switching elements in the central control and the individual apparatus and the resulting variance in the speed of information transmission.
    • 一种电话交换装置,其中通过两级传输网络在中央控制机构和单独装置之间传输信息,包括插入在两个级之间的缓冲存储装置。 信息在缓冲存储装置和使用相对便宜且相对较慢工作的切换元件的单独装置之间以并行代码传送。 信息在缓冲存储装置和利用电子相对较快工作的开关元件的中央控制机构之间以串行代码传送。 因此,通过调整中央控制装置和个体装置中的开关元件的不同操作速度以及由此导致的信息传输速度差异,从而实现电话交换设备的最佳利用。