Signal distribution apparatus for a directional signal transmission
system
    21.
    发明授权
    Signal distribution apparatus for a directional signal transmission system 失效
    信号分配装置采用定向信号传输系统

    公开(公告)号:US5768518A

    公开(公告)日:1998-06-16

    申请号:US535746

    申请日:1995-09-28

    CPC classification number: H01J13/00 H04N5/268 H04N7/14 H04N7/173

    Abstract: A time serial signal from a signal source is input into a delay circuit, and the signal is read out from arbitrary intermediate taps of the delay circuit to obtain a specific delayed signal. Alternatively, a time serial signal from a signal source is allotted to a plurality of memory circuits, and the allotted signal contents are read at a specific moment to obtain a specific delayed signal. By distributing the delayed signals in this manner, a signal distribution apparatus can send a serial signal, from its beginning with little delay, to multiple terminals requesting the signal at arbitrary times.

    Abstract translation: 来自信号源的时间串行信号被输入到延迟电路中,并且从延迟电路的任意中间抽头读出信号以获得特定的延迟信号。 或者,来自信号源的时间串行信号被分配给多个存储器电路,并且在特定时刻读取所分配的信号内容以获得特定的延迟信号。 通过以这种方式分配延迟的信号,信号分配装置可以从几乎没有延迟的开始向任意时间请求信号的多个终端发送串行信号。

    Transmission line sensor apparatus operable with near zero current line
conditions
    22.
    发明授权
    Transmission line sensor apparatus operable with near zero current line conditions 失效
    传输线传感器设备可在近零电流线路条件下工作

    公开(公告)号:US4808917A

    公开(公告)日:1989-02-28

    申请号:US795167

    申请日:1985-11-05

    Abstract: A self contained sensor module mounted on a power transmission line. The module is capable of measuring various parameters such as line current, voltage, conductor temperature, and ambient temperature. The parameter values are processed by sensor electronics which digitize and transmit the values to a ground receiver. The sensor module normally derives its power through electromagnetic induction resulting from current flowing through the transmission line. The module contains a power back-up system, including a battery, which allows sensor operation with minimum current and zero current in the transmission line. The battery is float charged while the sensor is mounted on the transmission line using excess energy derived through electromagnetic induction. When line current drops to a predetermined minimum value, float charging is disable and the battery supplies power to the sensor module. When battery power is depleted to a predetermined level, data processing and transmission are disabled until the battery can be recharged.

    Abstract translation: 安装在输电线路上的自包含的传感器模块。 该模块能够测量线路电流,电压,导体温度和环境温度等各种参数。 参数值由传感器电子设备进行处理,数字化并将值传输到地面接收器。 传感器模块通常通过电流流过传输线而产生电磁感应。 该模块包含一个电源备份系统,包括一个电池,允许传感器在传输线路中以最小的电流和零电流进行操作。 当传感器使用通过电磁感应得到的过量能量安装在传输线上时,电池是浮充电的。 当线路电流下降到预定的最小值时,浮充电将被禁用,电池为传感器模块供电。 当电池电量耗尽到预定的水平时,数据处理和传输将被禁用,直到电池可以再充电。

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