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    Multiplex transmission of television audio-visual signals
    71.
    发明授权
    Multiplex transmission of television audio-visual signals 失效
    多路传输电视机的视听信号

    公开(公告)号：US3955211A

    公开(公告)日：1976-05-04

    申请号：US455811

    申请日：1974-03-28

    申请人： Jean Paul Peltier ,  Pierre Oprandi ,  Rene Romeas

    发明人： Jean Paul Peltier ,  Pierre Oprandi ,  Rene Romeas

    IPC分类号： H04N11/18 ,  H04N7/04 ,  H04N7/084 ,  H04N9/82 ,  H04N9/86

    CPC分类号： H04N9/86 ,  H04N7/04 ,  H04N7/084 ,  H04N9/8222

    摘要： The invention relates to the multiplexed transmission of television audio-visual signals which comprise, for example, a luminance signal successive chrominance signals and at least one audio signal. The method in accordance with the invention utilises a subcarrier wave f, frequency modulated, on the one hand, by the chrominance signals, and on the other, by a train of isochronous pulses emitted during the line blanking intervals of the luminance signal and amplitude modulated by the audio-frequency signal. The multiplex signal which will subsequently be decoded, is obtained by frequency modulating a carrier wave by a signal which is the sum of the luminance signal Y and the above mentioned frequency modulated subcarrier.

    摘要翻译： 本发明涉及包括例如亮度信号连续色度信号和至少一个音频信号的电视视听信号的复用传输。 根据本发明的方法一方面利用色度信号进行频率调制的副载波f，另一方面利用在亮度信号的行消隐间隔期间发射的一系列同步脉冲和幅度调制 通过音频信号。 随后将被解码的多路复用信号通过对作为亮度信号Y和上述调频副载波的和的信号进行频率调制来获得。