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    Information data transmission system
    1.
    发明授权
    Information data transmission system 失效
    信息数据传输系统

    公开(公告)号：US4875090A

    公开(公告)日：1989-10-17

    申请号：US3941

    申请日：1987-01-16

    申请人： Makoto Shimokoriyama ,  Shinichi Yamashita ,  Naoto Abe ,  Motokazu Kashida ,  Masahiro Takei ,  Koji Takahashi

    发明人： Makoto Shimokoriyama ,  Shinichi Yamashita ,  Naoto Abe ,  Motokazu Kashida ,  Masahiro Takei ,  Koji Takahashi

    IPC分类号： H04N19/50 ,  G06T9/00 ,  H03M7/30 ,  H04N1/41 ,  H04N11/02 ,  H04N11/04

    CPC分类号： H04N11/042 ,  G06T9/004 ,  H04N11/02

    摘要： An information data transmission system deals with a plurality of kinds of information data different in quantity from one another and respectively corresponding to prescribed amounts of an information signal. The system has first encoding circuitry for encoding the plurality of kinds of information data and second encoding circuitry for predictively encoding the plurality of kinds of information data. The timing of the production of outputs from the first and second encoding circuits is such that, for all kinds of the plurality of information data, the quantity of information data encoded by the first encoding circuitry is equalized.

    摘要翻译： 信息数据传输系统处理彼此数量不同且分别对应于规定数量的信息信号的多种信息数据。 该系统具有用于对多种信息数据进行编码的第一编码电路和用于对多种信息数据进行预测编码的第二编码电路。 生成来自第一和第二编码电路的输出的定时使得对于所有种类的多个信息数据，由第一编码电路编码的信息数据量相等。

    Data transmission system
    2.
    发明授权
    Data transmission system 失效
    数据传输系统

    公开(公告)号：US4779276A

    公开(公告)日：1988-10-18

    申请号：US890831

    申请日：1986-07-25

    申请人： Motokazu Kashida ,  Shinichi Yamashita ,  Naoto Abe ,  Makoto Shimokoriyama ,  Masahiro Takei ,  Koji Takahashi

    发明人： Motokazu Kashida ,  Shinichi Yamashita ,  Naoto Abe ,  Makoto Shimokoriyama ,  Masahiro Takei ,  Koji Takahashi

    IPC分类号： H03M13/29 ,  H03M13/31 ,  G06F11/10

    CPC分类号： H03M13/27 ,  H03M13/29 ,  H03M13/2909 ,  H03M13/31

    摘要： A data transmission system operative to transmit data with a reduced low band frequency component includes facility for processing a predetermined quantity of information data, such as a code word, for generating error detecting-correcting data, and for dispersing the latter data in the former data. In one practice for effecting the dispersion, the system divides the information data and the error detecting-correcting data into respective groupings, and disperses the latter grouping into the former grouping. The resulting signal is transmitted.

    摘要翻译： 用于以降低的低频带频率分量发送数据的数据传输系统包括用于处理预定量的诸如码字的信息数据的设备，用于产生误差检测校正数据，并将后一数据分散在前一数据中 。 在实现色散的一个实践中，系统将信息数据和错误检测校正数据分成相应的分组，并将后一个分组分散到前一组中。 产生的信号被发送。

    Tracking control system using single frequency pilot signal
    6.
    发明授权
    Tracking control system using single frequency pilot signal 失效
    跟踪控制系统采用单频导频信号

    公开(公告)号：US5229891A

    公开(公告)日：1993-07-20

    申请号：US831632

    申请日：1992-02-07

    申请人： Katsuji Yoshimura ,  Koji Takahashi ,  Kenichi Nagasawa ,  Shinichi Yamashita ,  Motokazu Kashida ,  Mitsuhiro Otokawa

    发明人： Katsuji Yoshimura ,  Koji Takahashi ,  Kenichi Nagasawa ,  Shinichi Yamashita ,  Motokazu Kashida ,  Mitsuhiro Otokawa

    IPC分类号： G11B15/467 ,  G11B21/10

    CPC分类号： G11B21/103 ,  G11B15/4678

    摘要： In an apparatus for recording an information signal on a recording medium forming many parallel tracks on the medium and for reproducing the information signal from the medium, a tracking control system is arranged to record a pilot signal of a given frequency along with the information signal in the first of the many tracks; to have the pilot signal also recorded in second and third tracks adjoining the first track on both sides thereof but at pilot signal phases shifted from the pilot signal phase of the first track to equal degrees in the directions opposite to each other at parts of the second and third tracks aligned perpendicularly to the longitudinal direction of the first track; and, in reproducing the information signal, the position of the recording medium and that of a reproducing head relative to each other are controlled on the basis of the pilot signal of the given frequency reproduced by the reproducing head from the first track along with the information signal.

    摘要翻译： 在用于在介质上形成许多并行轨道的记录介质上记录信息信号并用于从介质再现信息信号的设备中，跟踪控制系统被布置成将信号信号与信息信号一起记录在一起 第一个很多轨道; 使得导频信号也记录在与其两侧相邻的第一磁道的第二和第三磁道中，但是在第二磁道的一部分处的导频信号相位从第一磁道的导频信号相位相移到相等的方向 和第三轨道，其垂直于第一轨道的纵向排列; 并且在再现信息信号时，基于由再现头从第一轨道再现的给定频率的导频信号与信息一起来控制记录介质和再现头相对于彼此的位置 信号。

    Tracking control system with pilot signal phase setting circuitry
    7.
    发明授权
    Tracking control system with pilot signal phase setting circuitry 失效
    具有导频信号相位设定电路的跟踪控制系统

    公开(公告)号：US4951162A

    公开(公告)日：1990-08-21

    申请号：US116523

    申请日：1987-11-03

    申请人： Katsuji Yoshimura ,  Koji Takahashi ,  Kenichi Nagasawa ,  Shinichi Yamashita ,  Motokazu Kashida ,  Mitsuhiro Otokawa

    发明人： Katsuji Yoshimura ,  Koji Takahashi ,  Kenichi Nagasawa ,  Shinichi Yamashita ,  Motokazu Kashida ,  Mitsuhiro Otokawa

    IPC分类号： G11B15/467 ,  G11B21/10

    CPC分类号： G11B21/103 ,  G11B15/4678

    摘要： In an apparatus for recording an information signal on a recording medium forming many parallel tracks on the medium and for reproducing the information signal from the medium, a tracking control system is arranged to record a pilot signal of a given frequency along with the information signal in the first of the many tracks; to have the pilot signal also recorded in second and third tracks adjoining the first track on both sides thereof but at pilot signal phases shifted from the pilot signal phase of the first track to equal degrees in the directions opposite to each other at parts of the second and third tracks aligned perpendicularly to the longitudinal direction of the first track; and, in reproducing the information signal, the position of the recording medium and that of a reproducing head relative to each other are controlled on the basis of the pilot signal of the given frequency reproduced by the reproducing head from the first track along with the information signal.

    摘要翻译： 在用于在介质上形成许多并行轨道的记录介质上记录信息信号并用于从介质再现信息信号的设备中，跟踪控制系统被布置成将信号信号与信息信号一起记录在一起 第一个很多轨道; 使得导频信号也记录在与其两侧相邻的第一磁道的第二和第三磁道中，但是在第二磁道的一部分处的导频信号相位从第一磁道的导频信号相位相移到相等的方向 和第三轨道，其垂直于第一轨道的纵向排列; 并且在再现信息信号时，基于由再现头从第一轨道再现的给定频率的导频信号与信息一起来控制记录介质和再现头相对于彼此的位置 信号。