Video disk with multiplexed video and digital information
    4.
    发明授权
    Video disk with multiplexed video and digital information 失效
    具有复用视频和数字信息的视频磁盘

    公开(公告)号:US4782402A

    公开(公告)日:1988-11-01

    申请号:US026329

    申请日:1987-03-16

    申请人: Hitoshi Kanamaru

    发明人: Hitoshi Kanamaru

    摘要: A recording and reproducing device for frequency division multiplexing of a television video and a digital data signal. The digital signal is interleaved in blocks so that the length of an interleaved block is longer than a video field but shorter than a video frame. The interleaved digital data is recorded so that an end of a group of blocks corresponds to a vertical synchronizing signal for the video signal.

    摘要翻译: 一种用于电视视频和数字数据信号的频分复用的记录和再现装置。 数字信号以块为单位进行交织,使得交织块的长度比视频场长,但比视频帧短。 记录交织的数字数据,使得一组块的结束对应于视频信号的垂直同步信号。

    Color video recorder/reproducer
    5.
    发明授权
    Color video recorder/reproducer 失效
    彩色录像机/再现器

    公开(公告)号:US4208671A

    公开(公告)日:1980-06-17

    申请号:US884143

    申请日:1978-03-07

    IPC分类号: H04N9/82 H04N9/85 H04N5/76

    CPC分类号: H04N9/85 H04N9/8222

    摘要: An information signal recording system separates a color video signal into a luminance signal and a carrier chrominance signal. The frequency of the separated carrier chrominance signal is converted to a lower frequency band. A carrier is frequency modulated with at least one audio signal which is mixed with the separated luminance signal and the frequency converted carrier chrominance signal. A carrier is frequency modulated with the mixed signals, and recorded as a main information signal on a main information signal track of a recording medium. A system for reproducing the recording medium reproduces the recorded main information signal from the recording medium. The reproduced main information signal is frequency demodulated, and the resulting output signal is separated into the luminance signal and the frequency converted carrier chrominance signal. The converted carrier chrominance signal is returned to the original frequency and mixed with the separated luminance signal to produce a reproduced color video signal. The frequency modulated audio signal is separated from the frequency demodulated main information signal. The separated frequency modulated audio signal is then demodulated.

    摘要翻译: 信息信号记录系统将彩色视频信号分离为亮度信号和载波色度信号。 分离的载波色度信号的频率被转换成较低的频带。 使用与分离的亮度信号和频率转换的载波色度信号混合的至少一个音频信号对载波进行频率调制。 载波用混合信号进行频率调制,并作为主信息信号记录在记录介质的主信息信号轨道上。 用于再现记录介质的系统从记录介质再现记录的主信息信号。 再现的主信息信号被频率解调,并且所得到的输出信号被分离成亮度信号和变频载波色度信号。 转换的载波色度信号返回到原始频率并与分离的亮度信号混合以产生再现的彩色视频信号。 频率调制音频信号与频率解调的主信息信号分离。 然后对分离的调频音频信号进行解调。

    Image signal processing apparatus having multiplexing capability
    9.
    发明授权
    Image signal processing apparatus having multiplexing capability 失效
    具有复用能力的图像信号处理装置

    公开(公告)号:US5444546A

    公开(公告)日:1995-08-22

    申请号:US326061

    申请日:1994-10-19

    申请人: Ryo Fujimoto

    发明人: Ryo Fujimoto

    摘要: An image signal recording and reproducing system records an image signal on a recording medium and reproduces a recorded image signal from the recording medium. The system is arranged to record information indicative of the values of M and N which satisfy fso/M=fr/N (M and N: integers) on the recording medium together with a sampling image signal generated by sampling at a sampling frequency fso and a pilot signal having a frequency fr. Accordingly, it is possible to record and reproduce an image signal on and from the recording medium with the compatibility of the image signal retained irrespective of a sampling frequency.

    摘要翻译: 图像信号记录和再现系统将图像信号记录在记录介质上并再现来自记录介质的记录图像信号。 该系统被配置为将记录介质上满足fso / M = fr / N(M和N:整数)的M和N的值的信息与以采样频率fso采样产生的采样图像信号一起记录, 具有频率fr的导频信号。 因此,可以以与采样频率无关的图像信号的兼容性在记录介质上记录和再现图像信号。