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    • 1. 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。
    • 3. 发明授权
    • Magnetic recording and/or reproducing system for television and audio
signal
    • 用于电视和音频信号的磁记录和/或再现系统
    • US4390906A
    • 1983-06-28
    • US255348
    • 1981-04-17
    • Mitsunobu FurumotoOsahiko YanoHiroshi TaniguchiKanji KuboMasamitsu Ohtsu
    • Mitsunobu FurumotoOsahiko YanoHiroshi TaniguchiKanji KuboMasamitsu Ohtsu
    • G11B20/00H04N5/782H04N5/7826H04N5/928H04N5/78
    • H04N5/928H04N5/782H04N5/78263
    • A two speed or multi-speed video tape recorder of the conventional helical scan type in which the audio signal is capable of being recorded as a time compressed signal at one end of each helical video scan, or alternatively, in conventional longitudinal fashion by means of a stationary magnetic head engaging one edge of the tape.At low tape transport speeds, improved bandwidth (and therefore sound fidelity) is obtained by use of the time compression technique; while at higher transport speeds, there are advantages in utilizing the stationary audio head.Circuitry is provided to automatically utilize the time compression technique at lower tape transport speeds and the stationary head longitudinal recording technique at higher tape transport speeds. A pilot or cue signal is recorded on the tape, to automatically control the reproduction circuitry so that both types of recording methods can be interchanged on the same magnetic tape, with the reproducing circuitry switching accordingly between the two modes, as required.
    • 常规螺旋扫描类型的双速或多速录像机,其中音频信号能够在每个螺旋视频扫描的一端被记录为时间压缩信号,或者以常规的纵向方式通过 与磁带的一个边缘接合的固定磁头。 在低磁带传输速度下,通过使用时间压缩技术可以获得改进的带宽(因而声音保真度); 而在较高的传输速度下,利用固定音频头具有优点。 提供电路以在较低的磁带传输速度下自动利用时间压缩技术,并以更高的磁带传输速度自动利用固定磁头纵向记录技术。 导频或提示信号被记录在磁带上,以便自动控制再现电路,使得两种类型的记录方法可以在同一磁带上互换,根据需要,再现电路在两种模式之间相应地切换。