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    • 8. 发明授权
    • Recording and/or reproducing apparatus with photo-electric image device
    • 具有光电图像装置的记录和/或再现装置
    • US4884151A
    • 1989-11-28
    • US153564
    • 1988-02-01
    • Masamitsu OhtsuHiroshi Taniguchi
    • Masamitsu OhtsuHiroshi Taniguchi
    • H04N9/83H04N5/77H04N9/84
    • H04N9/84H04N5/77Y10S358/906
    • A video recording and reproducing apparatus with photoelectric image camera in which a color signal processing circuit of a recording system is simplified. For recording, a luminance signal and a chrominance signal are produced in accordance with an image being picked up through a photoelectric transducer. The luminance signal is angle-modulated, while a carrier signal having a lower frequency than the standard carrier signal is directly modulated with the chrominance signal, whereby a chrominance recording signal equivalent to a signal obtained by a frequency conversion of the standard carrier signal to a low frequency band is obtained and added with the angle-modulated luminance signal to be recorded. Upon reproduction, the angle-modulated luminance signal undergoes angle-demodulation to be converted to a reproduced luminance signal, while the color (chrominance) recording signal is frequency-converted to a high frequency band to be reproduced color signal. The reproduced luminance and color signals are added together to obtain a reproduced color video signal.
    • 具有简化记录系统的彩色信号处理电路的光电图像摄像机的视频记录和再现装置。 为了记录,根据通过光电传感器拾取的图像产生亮度信号和色度信号。 亮度信号是角度调制的,而具有比标准载波信号低的频率的载波信号被色度信号直接调制,由此将与通过标准载波信号的频率转换获得的信号相当的色度记录信号 获得低频带并加上待记录的角度调制亮度信号。 在再现时,角度调制亮度信号经过角度解调以转换为再现的亮度信号,而色彩(色度)记录信号被频率转换为高频带以再现彩色信号。 将再现的亮度和颜色信号相加在一起以获得再现的彩色视频信号。