Phase control system
    1.
    发明授权
    Phase control system 失效
    相位控制系统

    公开(公告)号:US4099205A

    公开(公告)日:1978-07-04

    申请号:US735134

    申请日:1976-10-26

    CPC分类号: H04N5/0736

    摘要: A television signal is encoded by the use of a sampling pulse synchronized with a color subcarrier frequency included in an input television signal, the encoded signal is compressed and recorded in a memory for later reproduction of a desired compressed picture image having a desired size and center position, the recorded signal is reproduced under the control of a clock pulse signal produced in synchronism with a sync signal obtained in a studio, for example, and the reproduced signal is corrected by inverting the polarity of the chroma component according to frame information at the time of recording of said reproduced signal.Thus, it is possible to freely obtain phase coupling of different synchronizing signals; for instance, it is possible to bring the phase of a different television signal of a different synchronization system into coincidence with the phase of a central synchronization signal and it is possible to reproduce an object image optionally compressed on a TV display screen.

    摘要翻译: 电视信号通过使用与输入电视信号中包含的彩色副载波频率同步的采样脉冲进行编码,编码信号被压缩并记录在存储器中,用于稍后再现具有期望尺寸和中心的所需压缩图像图像 例如,在与在演播室中获得的同步信号同步产生的时钟脉冲信号的控制下再现记录的信号,并且通过根据帧信息将色度分量的极性反转来校正再现信号 记录所述再现信号的时间。