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    • 5. 发明授权
    • Transducer access control system
    • 传感器门禁系统
    • US5043961A
    • 1991-08-27
    • US305401
    • 1989-02-02
    • Nobuyuki HorieDaiji YamaneYoshiki NishiokaYoshio Yuki
    • Nobuyuki HorieDaiji YamaneYoshiki NishiokaYoshio Yuki
    • G11B21/08G05B19/416
    • G05B19/416
    • A transducer access control system for use in a disk recording/reproducing apparatus for moving a transducer a required distance from its present position over a disk in the radial direction thereof, includes a linear motor for driving the transducer, a circuit for generating a distance signal indicative of the required distance for moving the transducer, and a calculator for calculating a half distance which is a half of the required distance. To move the transducer for the required distance D, the linear motor is operated at the velocity controlled in accordance with a reference velocity signal produced from a reference velocity generator. The reference velocity is determined such that, the reference velocity is maintained at a predetermined value during the movement of the transducer in the first half of the required distance, and gradually decreases during the movement of the transducer in the second half of the required distance.
    • 一种用于磁盘记录/再现装置的传感器存取控制系统,用于使传感器在其径向方向上从其当前位置移动所需的距离,包括用于驱动换能器的线性电动机,用于产生距离信号的电路 指示用于移动换能器所需的距离,以及用于计算作为所需距离的一半的半距离的计算器。 为了将传感器移动到所需的距离D,线性电机以根据从参考速度发生器产生的参考速度信号控制的速度运行。 参考速度被确定为使得在所需距离的前半部分期间换能器运动期间参考速度保持在预定值,并且在所需距离的后半部分期间换能器移动期间逐渐减小。
    • 9. 发明授权
    • Floppy disk drive with stand-by mode
    • 带备用模式的软盘驱动器
    • US4635145A
    • 1987-01-06
    • US703901
    • 1985-02-21
    • Nobuyuki HorieNoriaki SakamotoToshiaki FujikawaToshihiro Yamanaka
    • Nobuyuki HorieNoriaki SakamotoToshiaki FujikawaToshihiro Yamanaka
    • G11B19/00G11B19/02G11B19/20G11B21/08
    • G11B19/20G11B19/02G11B21/08
    • A floppy disk drive system with a stand-by mode that shuts off power to the drive circuits that drive the head-positioning motor and the disk drive motor. The stand-by model is activated when no motor-activating signal is input within a predetermined period of time. As a result, this unique stand-by mode significantly reduces the power consumption of the floppy disk drive unit. At the same time, the stand-by mode extends the service life of several important components, such as the head-positioning pulse motor. When the stand-by mode is entered from the normal mode, the current position of the head is stored. Then when the normal mode is to be reentered from the stand-by mode, the head is first moved to a reference track and then back to the position at which the stand-by mode was entered so that the value of the two counters is equal.
    • 具有备用模式的软盘驱动器系统,用于切断驱动磁头定位电机和磁盘驱动电机的驱动电路的电源。 当在预定的时间段内没有输入电动机激活信号时,待机模式被激活。 因此,这种独特的待机模式显着降低了软盘驱动器的功耗。 同时,待机模式延长了头部定位脉冲电机等几个重要部件的使用寿命。 当从正常模式进入待机模式时,头部的当前位置被存储。 然后当正常模式从待机模式重新进入时,首先将磁头移动到参考轨道,然后返回到进入待机模式的位置,以使两个计数器的值相等 。