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    • 9. 发明授权
    • Rotating head type reproducing apparatus
    • 旋转头型重放装置
    • US4665449A
    • 1987-05-12
    • US643301
    • 1984-08-22
    • Susumu KozukiNobutoshi TakayamaHiroo EdakuboTatsuzo UshiroMasahiro TakeiKenichi Nagasawa
    • Susumu KozukiNobutoshi TakayamaHiroo EdakuboTatsuzo UshiroMasahiro TakeiKenichi Nagasawa
    • G11B5/592G11B15/467G11B21/10G11B5/56
    • G11B5/592G11B15/4678G11B21/103
    • A rotating head type reproducing apparatus, arranged to reproduce a recorded signal by tracing, one after another many recording tracks formed on a record bearing medium at a predetermined pitch by a rotating head, includes a moving mechanism for moving the record bearing medium in a direction transverse to the recording tracks; a shifting mechanism for shifting the rotating head in a direction transverse to the rotating plane thereof; a pulse signal generator for generating a pulse signal in association with the moving operation of the moving mechanism on the record bearing medium; a counter for counting the pulse signal, the count datum of the counter being arranged to return to the initial datum every time a predetermined number of pulses of the pulse signal are counted; a timing signal generator for generating a timing signal in association with the rotation of the rotating head; and a control device for forming a control signal for controlling the shifting mechanism on the basis of the count data of the counter and the timing signal.
    • 旋转磁头型重放装置,用于通过跟踪再现记录信号,通过旋转磁头以预定的间距一个接一个地在记录轴承介质上形成的许多记录磁道包括一个移动机构,用于沿记录轴承介质的方向 横向记录轨道; 用于使旋转头沿与其旋转平面横切的方向移动的移动机构; 脉冲信号发生器,用于与记录承载介质上的移动机构的移动操作相关联地产生脉冲信号; 计数器,用于对脉冲信号进行计数,计数器的计数基准被布置为每当计数脉冲信号的预定数量的脉冲时返回到初始数据; 定时信号发生器,用于与旋转头的旋转相关联地产生定时信号; 以及控制装置,用于基于计数器的计数数据和定时信号形成用于控制换档机构的控制信号。
    • 10. 发明授权
    • Video signal reproducing apparatus
    • 视频信号再现装置
    • US4599660A
    • 1986-07-08
    • US573368
    • 1984-01-24
    • Susumu KozukiHiroyuki TakimotoHiroo EdakuboNobutoshi Takayama
    • Susumu KozukiHiroyuki TakimotoHiroo EdakuboNobutoshi Takayama
    • H04N5/7826G11B5/584G11B5/588G11B15/467G11B5/56
    • G11B15/4678
    • A video signal reproducing apparatus which reproduces a video signal from many evenly spaced recording tracks formed on a recording medium, comprises:a first rotating head;a second rotating head which has a larger width than the first rotating head and which traces the recording tracks alternately with the first rotating head;detecting apparatus for detecting the positional errors of the first and second rotating heads relative to one of the recording tracks by using the outputs of these heads;adjusting apparatus for adjusting, on the basis of the difference in head width between the first and second rotating heads, the output of the detecting apparatus related to the second rotating head;recording medium moving apparatus for moving the recording medium in a direction which intersects the recording tracks; andcontrol apparatus for controlling the moving apparatus on the basis of the output of the detecting means adjusted by the adjusting apparatus.
    • 一种视频信号再现装置,其从形成在记录介质上的许多均匀间隔的记录道再现视频信号,包括:第一旋转头; 第二旋转头,其具有比第一旋转头更大的宽度,并且与第一旋转头交替地跟踪记录轨道; 检测装置,用于通过使用这些磁头的输出来检测第一和第二旋转磁头相对于一个记录磁道的位置误差; 调整装置,用于根据第一和第二旋转头之间的头部宽度的差异,调整与第二旋转头相关的检测装置的输出; 记录介质移动装置,用于沿与记录轨道相交的方向移动记录介质; 以及根据由调节装置调整的检测装置的输出来控制移动装置的控制装置。