Tape tension control apparatus for video cassette tape recorder
    2.
    发明授权
    Tape tension control apparatus for video cassette tape recorder 失效
    胶带张力控制装置用于盒式磁带录像机

    公开(公告)号:US5775616A

    公开(公告)日:1998-07-07

    申请号:US587704

    申请日:1996-01-19

    CPC分类号: G11B15/43 G11B15/6653

    摘要: An improved tape tension control apparatus for a VCR capable of preventing tape from getting out of a tension post due to the rapid movement of a tension arm by providing a tension arm movement delay member at the time of loading/unloading the tape, which includes a tension arm movement delay member disposed at a predetermined portion of the tension arm for preventing a rapid movement of the tension arm at the time of loading/unloading the tape.

    摘要翻译: 一种用于VCR的改进的带张力控制装置,其能够通过在装载/卸载带时提供张力臂运动延迟构件,防止带子从拉伸臂的快速移动中脱离张力柱,该装置包括 张力臂移动延迟构件设置在张力臂的预定部分处,用于防止在装载/卸载带时张力臂的快速移动。

    Apparatus and method for discriminating between analog and digital video
signals in high definition video cassette recorder
    4.
    发明授权
    Apparatus and method for discriminating between analog and digital video signals in high definition video cassette recorder 失效
    用于识别高清晰度录像机中的模拟和数字视频信号的装置和方法

    公开(公告)号:US5838875A

    公开(公告)日:1998-11-17

    申请号:US703838

    申请日:1996-08-27

    IPC分类号: H04N9/79 H04N5/76

    CPC分类号: H04N9/7921

    摘要: An apparatus and a method for discriminating between analog and digital video signals in a high definition VCR are disclosed. The apparatus comprises a playback amplification circuit for amplifying a video signal recorded on a tape played back by a head when a playback mode is selected by the user, a signal detection circuit for detecting a signal from an output signal from the playback amplification circuit, the detected signal being indicative of whether the video signal recorded on the tape is analog or digital, a mode switching control circuit for discriminating in response to an output signal from the signal detection circuit whether the video signal recorded on the tape is analog or digital and outputting a mode switching control signal in accordance with the discriminated result, a switch being switched in response to the mode switching control signal from the mode switching control circuit, and analog and digital playback circuits for playback-processing the output signal from the playback amplification circuit under the control of the switch.

    摘要翻译: 公开了一种用于区分高分辨率VCR中的模拟和数字视频信号的装置和方法。 该装置包括一个播放放大电路,用于当用户选择播放模式时放大记录在由磁头播放的磁带上的视频信号;信号检测电路,用于从来自重放放大电路的输出信号中检测信号, 指示记录在磁带上的视频信号是模拟还是数字的模式切换控制电路,用于根据来自信号检测电路的输出信号鉴别记录在磁带上的视频信号是模拟还是数字的,并输出 根据鉴别结果的模式切换控制信号,响应于来自模式切换控制电路的模式切换控制信号切换的开关,以及用于对来自重放放大电路的输出信号进行重放处理的模拟和数字重放电路 开关的控制。