Video signal processing system for reproducing a video signal from a
bandwidth limited recorded signal
    2.
    发明授权
    Video signal processing system for reproducing a video signal from a bandwidth limited recorded signal 失效
    视频信号处理系统,用于从带宽限制的记录信号再现视频信号

    公开(公告)号:US3961359A

    公开(公告)日:1976-06-01

    申请号:US443994

    申请日:1974-02-20

    IPC分类号: H04N9/85 H04N9/02

    CPC分类号: H04N9/85

    摘要: A video signal processing system for reproducing a colorplexed composite video signal obtained by colorplexing a frequency shifted chrominance signal shifted to a lower frequency band and a luminance signal by using frequency interlacement, the composite video signal being recorded in the form of an angular modulation signal on a recording medium, and converting the reproduced signal into a standard color television signal. In this system, the chrominance signal band component is extracted from the reproduced composite video signal, and the extracted signal is frequency converted into a signal in the frequency band of the chrominance signal in the standard color television signal. The frequency converted signal is then coupled to a comb filter to separate the chrominance signal. The chrominance signal thus obtained is combined with a signal obtained by removing the chrominance signal component from the reproduced composite video signal, thereby recovering the standard color television signal.

    摘要翻译: 一种视频信号处理系统,用于再现通过使用频率交错将移位到较低频带的频移色度信号和亮度信号进行复用获得的复合复合视频信号,复合视频信号以角度调制信号的形式被记录在 记录介质,并将再生信号转换为标准彩色电视信号。 在该系统中,从再现的复合视频信号中提取色度信号频带分量,并将提取的信号频率转换为标准彩色电视信号中的色度信号的频带中的信号。 然后将频率转换信号耦合到梳状滤波器以分离色度信号。 这样获得的色度信号与通过从再现的复合视频信号中去除色度信号分量获得的信号组合,从而恢复标准彩色电视信号。