Power supply arrangement for applying direct current to subscriber circuits
    2.
    发明公开
    Power supply arrangement for applying direct current to subscriber circuits 失效
    Speisungsanordnung zurGleichstromzuführunga Teilnehmerschaltungen。

    公开(公告)号:EP0099156A2

    公开(公告)日:1984-01-25

    申请号:EP83201018.5

    申请日:1983-07-08

    发明人: Bourgonje, Wouter

    IPC分类号: H04M19/00

    摘要: pulse supply for several subscriber lines to be supplied independently in a telephone system is disclosed. So as to limit the voltage ripple on the central power source due to the pulsating load the phases of the current pulse signals are shifted relative to each other.

    摘要翻译: 公开了在电话系统中独立供应的多条用户线的脉冲电源。 为了限制由于脉动负载而导致的中央电源的电压纹波,电流脉冲信号的相位相对于彼此偏移。

    Method, station and system for the transmission of messages in the form of data packets
    4.
    发明公开
    Method, station and system for the transmission of messages in the form of data packets 失效
    Verfahren,站和系统zurÜbertragungvon Nachrichten在形式von Datenpaketen。

    公开(公告)号:EP0173364A1

    公开(公告)日:1986-03-05

    申请号:EP85201157.6

    申请日:1985-07-10

    IPC分类号: H04L11/16 H04M9/02

    摘要: A method of transmitting data packets in a message-switched channel (signalling channel) of a time-division multiplex system with CSMA-CD. Interference-free transmission in the message-switched channel ensures the absence of collisions on occupying the circuit-switched connection. Message mutilation and collision on accessing the message-switched channel are remedied by a retransmission procedure in which the unique station address number determines the frame number in which the retransmission may start. This procedure guarantees that a station accesses the message-switched channel within a very short period of time. This guaranteed access is not possible with the prior art CSMA-CD buses.

    摘要翻译: 一种在具有CSMA-CD的时分复用系统的消息交换信道(信令信道)中发送数据分组的方法。 消息交换通道中的无干扰传输确保在占用电路交换连接时不存在冲突。 在访问消息交换信道时的消息毁坏和冲突由重传过程来纠正,其中唯一站地址号确定重传可能开始的帧号。 该过程保证站在非常短的时间内访问消息交换信道。 使用现有技术的CSMA-CD总线,这种保证访问是不可能的。