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公开(公告)号:US4606072A
公开(公告)日:1986-08-12
申请号:US786144
申请日:1985-10-08
摘要: A multiple converter system is provided for a remote user in a cable communications system. The converters at the user location are linked together via a splitter. One converter operates as a master converter transmitting a master control signal to the other converters, designated as slave converters. The slave converters are actuated only upon reception of the master control signal. The master control signal is interrupted by the master converter only when it transmits data upstream to the central office or when one of the slave converters is required to transmit data. A slave converter notifies the master converter of the need to transmit data by a slave signal. A transmitter unit is automatically activated for transmitting data upstream upon the absence of the master signal on the bus.
摘要翻译: 为有线通信系统中的远程用户提供多转换器系统。 用户位置的转换器通过分离器连接在一起。 一个转换器用作主转换器,将主控制信号发送到被指定为从属转换器的其他转换器。 从机转换器只有在接收到主控制信号时才被起动。 只有当主控转发器向中心局发送数据时,或者要求其中一个从属转换器发送数据时,主转换器才会中断主控制信号。 从转换器通知主转换器需要通过从属信号发送数据。 在总线上没有主信号时,发射机单元被自动激活,用于在上行传输数据。