Pulse position modulation key signaling system
    1.
    发明授权
    Pulse position modulation key signaling system 失效
    脉冲位置调制键信号系统

    公开(公告)号:US3924074A

    公开(公告)日:1975-12-02

    申请号:US59296645

    申请日:1945-05-19

    Inventor: PETERSON EUGENE

    CPC classification number: H04K1/02

    Abstract: 1. In a signaling system, a source of signal waves, a source of key waves, a transmission line or channel, means to allot periodic time intervals on said line to the transmission of signal indications thereover derived from said signals, means to produce signal indications for transmission and to encipher them comprising means to produce a pair of pulses of energy separated in time, and means to vary the absolute time positions of said pulses together under the conjoint control of said signal and key waves, one or the other of said two pulses always occurring within said time interval and the other always occurring outside said time interval, and means to transmit the former pulse over said line.

    Abstract translation: 在信令系统中,信号源源,关键波源,传输线或信道,意味着在所述线路上分配周期性时间间隔到由所述信号导出的信号指示的传输,意味着产生信号 用于发送和加密的指示包括产生一对在时间上分离的能量脉冲的装置,以及用于在所述信号和键波的联合控制下将所述脉冲的绝对时间位置改变在一起的装置,所述方法中的一个或所述 总是在所述时间间隔内发生两个脉冲,另一个总是在所述时间间隔之外发生,以及用于在所述线路上传输之前的脉冲的装置。

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