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    • 9. 发明申请
    • INFORMATION STORAGE APPARATUS
    • 信息存储设备
    • US20090296263A1
    • 2009-12-03
    • US12408682
    • 2009-03-21
    • Takashi KidaSusumu YoshidaIsamu TomitaTakeyori Hara
    • Takashi KidaSusumu YoshidaIsamu TomitaTakeyori Hara
    • G11B21/02
    • G11B5/5547
    • An information storage apparatus includes a disc-shaped recording medium in which control marks aligned in a predetermined rule are recorded, a head contacting or approaching a recording medium surface to reproduce/record information of the recording medium and detecting the control marks, a head driving section holding the head to move the head in a direction of coming near or away to/from a recording medium rotation center, a driving force control section controlling a driving force for head driving section, a driving time control section controlling a driving time for the head driving section using an interval of the detection of the plural control marks as a time unit, and a driving force correcting section obtaining a difference between an ideal interval based on the rule of the control marks and an actual interval of the control marks to correct the control of the driving force based on the difference.
    • 信息存储装置包括盘状记录介质,其中记录了以预定规则排列的控制标记,接触或接近记录介质表面的头以再现/记录记录介质的信息并检测控制标记,头驱动 保持头部沿着与记录介质旋转中心靠近或离开的方向移动头部;驱动力控制部分,控制头部驱动部分的驱动力;驱动时间控制部分,控制驱动时间 头部驱动部分,其使用多个控制标记的检测间隔作为时间单位,以及驱动力校正部,其基于控制标记的规则和控制标记的实际间隔获得理想间隔之间的差异,以校正 根据差异控制驱动力。
    • 10. 发明授权
    • Disk drive write control by servo gain
    • 磁盘驱动器通过伺服增益写入控制
    • US07286319B2
    • 2007-10-23
    • US11445744
    • 2006-06-02
    • Takashi KidaKazunori Mori
    • Takashi KidaKazunori Mori
    • G11B5/596
    • G11B5/6029G11B5/6005G11B19/04
    • A method of controlling a disk drive is disclosed that is capable of precise and real-time detection of an abnormal floating height of a magnetic head over an entire area of a magnetic disk. The method of controlling the disk drive includes the steps of: calculating a servo gain difference between a servo gain value obtained from a servo frame of the disk drive and a normal servo gain value recorded in the servo frame, the normal servo gain value being a servo gain value when a magnetic head flies normally relative to a magnetic disk; and forbidding the magnetic head writing data into the magnetic disk when the servo gain difference is equal to or greater than a predetermined value.
    • 公开了一种控制磁盘驱动器的方法,其能够在磁盘的整个区域上精确且实时地检测磁头的异常浮动高度。 控制盘驱动器的方法包括以下步骤:计算从盘驱动器的伺服帧获得的伺服增益值与记录在伺服帧中的正常伺服增益值之间的伺服增益差,正常伺服增益值为 当磁头相对于磁盘正常飞行时的伺服增益值; 并且当伺服增益差等于或大于预定值时,禁止磁头将数据写入磁盘。