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    • 4. 发明授权
    • Apparatus for recording video signals at a plurality of different
recording speeds
    • 用于记录多个不同记录速度的视频信号的装置
    • US4584613A
    • 1986-04-22
    • US574210
    • 1984-01-27
    • Shinji AmariTomihiro Nakagawa
    • Shinji AmariTomihiro Nakagawa
    • H04N5/765H04N5/77H04N5/783H04N9/83H04N5/78
    • H04N9/83H04N5/772H04N5/783Y10S358/906
    • A video signal recording apparatus for recording a video signal on a magnetic tape includes an oscillator which generates an oscillation signal; a variable frequency divider for frequency dividing the oscillation signal; a control circuit for controlling the frequency-dividing ratio of the variable frequency divider in accordance with the speed of advancement of the magnetic tape during the recording operation; a frequency divider for generating a plurality of synchronizing signals in response to the output of the variable frequency divider; a camera including an image transducer from which the video signal is obtained in correspondence to incident light from an object image projected on the image transducer, and a transmission device for transmitting the signal from the image transducer at a rate determined by the synchronizing signals; and a recording section including a processing circuit for separately processing the luminance and chrominance components of the transmitted video signal, and at least one transducer for recording the processed video signal on the magnetic tape in response to the synchronizing signals, wherein the video signal is always recorded on the magnetic tape in the same format regardless of the speed of advancement of the magnetic tape during the recording operation.
    • 用于在磁带上记录视频信号的视频信号记录装置包括产生振荡信号的振荡器; 用于对振荡信号进行分频的可变分频器; 控制电路,用于根据记录操作期间磁带的前进速度来控制可变分频器的分频比; 分频器,用于响应于可变分频器的输出而产生多个同步信号; 一种照相机,包括与从投射在图像传感器上的物体图像的入射光相对应地获得视频信号的图像传感器;以及发送装置,用于以由同步信号确定的速率从图像传感器发送信号; 以及记录部分,包括用于单独处理所发送的视频信号的亮度和色度分量的处理电路,以及用于响应于同步信号在磁带上记录经处理的视频信号的至少一个换能器,其中视频信号总是 记录在磁带上,而与记录操作期间的磁带的前进速度无关。
    • 8. 发明授权
    • Tape cassette lid having projection for preventing tape pinching
    • 磁带盒盖具有用于防止胶带夹紧的突起
    • US5279476A
    • 1994-01-18
    • US837905
    • 1992-02-20
    • Hiroshi FujiiTomihiro Nakagawa
    • Hiroshi FujiiTomihiro Nakagawa
    • G11B23/087G11B23/04
    • G11B23/08735
    • A tape cassette including a rib projecting upwardly from a bottom wall of a cassette case at a position between the center and one side of a tape drawing recess formed at the front of the cassette case, the rib being disposed close to the back surface of the tape, and a projection that projects from a back lid which, in a closed position, protects the back surface of the tape. When the back lid is rotated to reach an open position, the projection is kept in contact with an upper end of the rib. Accordingly, even when a part of the tape is lifted by the back lid during a lid opening operation, the tape is prevented from entering behind the rib, thereby also preventing tape jamming and damage to the tape player.
    • 一种盒式磁带,其包括在盒壳体的底壁处在形成在盒壳体的前部的磁带引出凹部的中心和一侧之间的位置处向上突出的肋,所述肋布置成靠近磁带盒的背面 胶带,以及从后盖突出的突出部,其在关闭位置保护胶带的背面。 当后盖旋转到达打开位置时,凸起与肋的上端保持接触。 因此,即使当在打开盖操作期间一部分带被后盖抬起时,防止带子进入到肋后面,从而也防止胶带卡住和损坏磁带播放机。