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    • 4. 发明授权
    • Apparatus for playing back video signals recorded on a rotary recording
medium on several quasi-slow motion reproduction modes
    • 用于以几种准慢动作再现模式播放记录在旋转记录介质上的视频信号的装置
    • US4499505A
    • 1985-02-12
    • US307582
    • 1981-10-01
    • Hiroyuki SugiyamaRyozo AbeKenji Yoshihara
    • Hiroyuki SugiyamaRyozo AbeKenji Yoshihara
    • H04N5/903G11B21/04G11B21/06G11B21/08G11B21/10G11B27/00H04N5/76
    • G11B21/10G11B21/085G11B27/005Y10S358/907
    • A rotary recording medium reproducing apparatus for reproducing a rotary recording medium in which a plurality of fields of video signals are recorded for each track turn on a spiral track comprises a reproducing transducer having a reproducing element for scanning over tracks on the rotary recording medium to reproduce recorded signals, and shifting device responsive to a signal applied thereto for shifting the reproducing element towards the outer side or the inner side on the rotary recording medium, and a circuit for producing shifting a signal in order to shift the reproducing element by one track pitch towards the outer side on the rotary recording medium every time the reproducing element reaches one predetermined position on the rotary recording medium, and capable of producing a shifting signal for shifting the reproducing element towards the outer side or the inner side on the rotary recording medium according to the slow-motion ratio and the direction of the slow-motion reproduction when the reproducing element reaches another predetermined position on the rotary recording medium. The shifting signal is supplied to the shifting device. The tracks are reproduced a plurality of times with respect to each track turn, to perform a slow-motion reproduction.
    • 用于再生旋转记录介质的旋转记录介质再现装置,其中记录有用于每个轨道的多个视场信号在螺旋轨迹上的旋转记录介质,其特征在于,具有用于在所述旋转记录介质上的轨道上进行扫描的再现元件的再现元件, 记录信号和移位装置,其响应于施加到其上的信号,用于使再现元件朝向旋转记录介质上的外侧或内侧移动,以及用于产生移位信号的电路,以便将再现元件移位一个磁道间距 每当再现元件到达旋转记录介质上的一个预定位置时,在旋转记录介质上的外侧,并且能够产生用于使再现元件朝向旋转记录介质上的外侧或内侧移动的移位信号, 慢速运动比和慢动作方向 当再现元件到达旋转记录介质上的另一预定位置时的产生。 换档信号被提供给换档装置。 轨道相对于每个轨道转弯多次再现,以执行慢动作再现。
    • 9. 发明授权
    • Rotary recording medium reproducing apparatus
    • 旋转记录介质再现装置
    • US4467464A
    • 1984-08-21
    • US415964
    • 1982-09-08
    • Hiroyuki SugiyamaMasaki SakuraiRyozo AbeKenji Yoshihara
    • Hiroyuki SugiyamaMasaki SakuraiRyozo AbeKenji Yoshihara
    • G11B17/049G11B17/00G11B17/04G11B23/04
    • G11B17/049G11B17/00
    • A rotary recording medium reproducing apparatus reproduces a rotary recording medium accommodated within a case, where the case comprises a jacket provided with a space for accommodating the rotary recording medium and an opening for allowing the rotary recording medium to go in and out of the jacket, and a lid member inserted through the opening of the jacket for closing the opening of the jacket. The rotary recording medium reproducing apparatus comprises a rotary recording medium supporting member for supporting the rotary recording medium left within the reproducing apparatus so that the rotary recording medium is supported above a turntable by an operation in which the case is inserted into and then extracted from the reproducing apparatus, a driving source for operating in one direction to raise the rotary recording medium supporting member and operating in a reverse direction to lower the rotary recording medium supporting member, and a control circuit for controlling the driving source to operate in the one direction when the control circuit detects the insertion of the jacket into the reproducing apparatus in a state where the rotary recording medium is supported by the supporting member and is being lowered with the supporting member operated by the driving source which is operating in the reverse direction.
    • 旋转记录介质再现装置再现容纳在壳体内的旋转记录介质,其中壳体包括设置有用于容纳旋转记录介质的空间的外壳和用于允许旋转记录介质进出外壳的开口, 以及通过所述护套的开口插入以封闭所述护套的开口的盖构件。 旋转记录介质再现装置包括用于支撑留在再现装置内的旋转记录介质的旋转记录介质支撑构件,使得旋转记录介质通过其中插入壳体并从其中提取的操作被支撑在转盘上方 再现装置,用于沿一个方向操作以升高旋转记录介质支撑构件并沿相反方向操作以降低旋转记录介质支撑构件的驱动源,以及用于控制驱动源在一个方向上操作的控制电路, 控制电路在旋转记录介质由支撑构件支撑的状态下检测到护套插入到再现装置中并且随着由反向操作的驱动源操作的支撑构件而下降。