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1.发明申请APPARATUS AND METHOD OF DRIVING MOTOR, AND DRIVE APPARATUS USING THE SAME 审中-公开驱动电机的装置和方法，以及使用该装置的驱动装置公开(公告)号：US20080231218A1
公开(公告)日：2008-09-25
申请号：US12052034
申请日：2008-03-20
申请人： Kyoung-whan OH , Soo-young Choi , Nam-guk Kim , Su-Hwan Kim
发明人： Kyoung-whan OH , Soo-young Choi , Nam-guk Kim , Su-Hwan Kim
CPC分类号： G11B19/28
摘要： An open-loop driving method of a spindle motor includes determining of whether open-loop driving conditions for the spindle motor are met, and adjusting widths of driving pulses applied to the spindle motor according to a predictive speed variation of the spindle motor when it is determined that the open-loop driving conditions for the spindle motor are met.
摘要翻译： 主轴电动机的开环驱动方法包括确定是否满足主轴电动机的开环行驶条件，以及根据主轴电动机的预测速度变化调整施加到主轴电动机的驱动脉冲的宽度 确定主轴电动机的开环行驶条件得到满足。
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2.发明申请公开(公告)号：US20080037164A1
公开(公告)日：2008-02-14
申请号：US11769060
申请日：2007-06-27
申请人： Kyoung-whan OH , Sang-hoon Chu , Nam-guk Kim , Cheol-hoon Park , Su-hwan Kim
发明人： Kyoung-whan OH , Sang-hoon Chu , Nam-guk Kim , Cheol-hoon Park , Su-hwan Kim
IPC分类号： G11B17/02
CPC分类号： G11B17/028 , G11B19/2054 , G11B33/144
摘要： An adaptive spindle motor startup method includes applying an internal driving voltage to a disk drive, sensing an internal temperature of the disk drive, and controlling the startup of a spindle motor by adjusting a startup factor related to a startup current applied to the spindle motor corresponding to the sensed temperature. Thus, the delay of time to reach a target rotation rate is prevented in the spindle motor in an extreme environment, for example at temperatures lower or higher than 25° C. The overall startup time is efficiently optimized through the improvement of the startup method of the spindle motor.
摘要翻译： 自适应主轴电动机启动方法包括：向盘驱动器施加内部驱动电压，感测磁盘驱动器的内部温度，并且通过调节与施加到主轴电动机的启动电流相关的启动因素来控制主轴电动机的起动对应 到感测温度。 因此，在极端环境中，例如在低于或高于25℃的温度下，在主轴电机中防止达到目标转速的时间延迟。通过改进启动方法来有效优化整个启动时间 主轴电机。
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3.发明申请METHOD OF REDUCING ABRASION OF DISK BY USING DITHERING PROCESS AND DISK DRIVE USING THE SAME 失效通过使用抖动过程减少磁盘磨损和使用磁盘驱动器的方法公开(公告)号：US20080225429A1
公开(公告)日：2008-09-18
申请号：US12044173
申请日：2008-03-07
申请人： Kyoung-whan OH , Bong-jin LEE
发明人： Kyoung-whan OH , Bong-jin LEE
IPC分类号： G11B21/02
摘要： Embodiments of the invention reduce abrasion of a disk via a dithering process that spreads a friction area between a magnetic head and the disk when a magnetic head lifts from the surface of the disk. In embodiments of the invention, the dithering process is executed only when the magnetic head is latched in a parking zone of the disk and when a disk spindle motor is in an acceleration mode.
摘要翻译： 本发明的实施例通过抖动过程减少磁盘的磨损，当磁头从磁盘表面升起时，该抖动过程在磁头和磁盘之间扩展摩擦区域。 在本发明的实施例中，仅当磁头锁定在盘的停放区域中以及当盘主轴电机处于加速模式时才执行抖动处理。
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4.发明申请METHOD OF DETECTING APPROXIMATE TOUCH-DOWN, METHOD OF ADJUSTING HEAD FLYING HEIGHT USING THE DETECTED APPROXIMATE TOUCH-DOWN, AND DISK DRIVE 审中-公开检测近似触摸的方法，使用检测到的大致触摸调节头部飞行高度的方法和磁盘驱动器公开(公告)号：US20110158072A1
公开(公告)日：2011-06-30
申请号：US12981807
申请日：2010-12-30
申请人： Kyoung-whan OH , Jung-dae Kim , Bong-jin Lee
发明人： Kyoung-whan OH , Jung-dae Kim , Bong-jin Lee
CPC分类号： G11B5/40 , G11B5/6005 , G11B5/6064
摘要： A method and apparatus to control a flying height of a head in a disk drive by detecting a flying state of the head just before it touches down to a disk. The method includes detecting approximate touch-down based on detecting a motion change of a head in a disk track direction by changing a flying height of the head on a rotating disk and determining that the head approaches a touch-down approximated flying height when the detected motion change of the head in the disk track direction exceeds a threshold value.
摘要翻译： 一种方法和装置，用于通过在接触到盘之前检测头的飞行状态来控制磁盘驱动器中磁头的飞行高度。 该方法包括基于通过改变旋转盘上的头部的飞行高度来检测磁盘轨道方向上的磁头的运动变化来检测近似的下降，并且当检测到磁头时，确定磁头接近接近飞行高度 磁头磁道方向的运动变化超过阈值。
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