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    • 4. 发明申请
    • Limiting Disc Deflection
    • 限制光盘偏转
    • US20110255190A1
    • 2011-10-20
    • US12762075
    • 2010-04-16
    • Chuen Buan LeeChoon Kiat LimXiong LiuJui Jing Lim
    • Chuen Buan LeeChoon Kiat LimXiong LiuJui Jing Lim
    • G11B33/14
    • G11B25/043G11B5/4813G11B5/4833
    • A data storage apparatus and associated method is provided involving a data storage disc that is rotatable around a first axis. An actuator is rotatable around a second axis to operably position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc. A snubber is supported by the actuator and has a distal edge configured as being, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, arcuate along a first radius on one side of the reference plane and arcuate along a second radius different than the first radius on the other side of the reference plane.
    • 提供了一种数据存储装置和相关联的方法,其涉及可围绕第一轴线旋转的数据存储盘。 致动器可围绕第二轴线旋转,以将数据传输构件可操作地定位在数据存储盘的最内径向位置和数据存储盘的最外侧径向存储位置之间。 缓冲器由致动器支撑,并且具有远端边缘,该远端边缘相对于包括第一轴线和第二轴线的参考平面被配置为当致动器旋转以将数据传送构件定位在最内侧的径向位置时沿着 第一半径在参考平面的一侧上,并且沿着与参考平面的另一侧上的第一半径不同的第二半径呈弧形。
    • 6. 发明授权
    • Velocity control system for an actuator assembly
    • 用于执行器组件的速度控制系统
    • US07259933B2
    • 2007-08-21
    • US11139062
    • 2005-05-27
    • Lee Ling TanXiong LiuChoon Kiat Lim
    • Lee Ling TanXiong LiuChoon Kiat Lim
    • G11B5/596G11B21/02
    • G11B21/12G11B5/54
    • A method for generating a velocity command for an actuator assembly is provided. The actuator assembly includes an actuator arm, which is to move over a plurality of surfaces. The method begins by providing a compensation torque for each of the plurality of surfaces. A position of the actuator arm is determined so that it may be mapped to one of the plurality of surfaces, which is the present surface over which the actuator arm is moving. A target velocity is then provided for the actuator arm and input to a controller, which generates a velocity command from the target velocity and a selected compensation torque, which is the compensation torque of the present surface.
    • 提供了一种用于产生用于致动器组件的速度指令的方法。 致动器组件包括致动器臂,其将在多个表面上移动。 该方法开始于为多个表面中的每一个提供补偿扭矩。 确定致动器臂的位置,使得其可以映射到作为致动器臂正在移动的当前表面的多个表面中的一个表面。 然后为致动器臂提供目标速度并输入到控制器,该控制器从目标速度产生速度指令,以及选择的补偿转矩(作为当前表面的补偿扭矩)。
    • 9. 发明授权
    • Optimal reader-to-writer offset measurement of a head in a disc drive for reduced track misregistration
    • 磁盘驱动器中头部的最佳读写器偏移测量用于减少轨道重合失调
    • US06754030B2
    • 2004-06-22
    • US10029318
    • 2001-12-21
    • Edmun Chian Song SengXiong LiuAik Chuan LimKay Hee TangUtt Heng KanChoon Kiat Lim
    • Edmun Chian Song SengXiong LiuAik Chuan LimKay Hee TangUtt Heng KanChoon Kiat Lim
    • G11B500
    • G11B20/20G11B5/59627G11B27/36G11B2220/20
    • A method of and apparatus for generating a reader-to-writer offset for a head positioned over a track on a disc in a disc drive having a plurality of tracks is disclosed. A reader and a writer are mounted on the head in a non-overlapping manner with a gap between the reader and the writer, which is known as the reader-to-writer offset. A disc drive controller is operably connected to the reader and the writer. The disc drive controller determines the reader-to-writer offset of the head for each track by computing the difference between a first head position x1 and a second head position x2. The first head position x1 is an optimal head position for writing information on the track and the second head position x2 is a midpoint of an off-track capability (OTC) of the head. The OTC is a portion of a track pitch over which the reader is expected to read information that is free of an incorrigible bit error such that the writer-to-reader track misregistration (TMR) is minimized as the head is radially displaced the reader-to-writer offset to read information written on the track or to write information on the track.
    • 公开了一种用于为位于具有多个磁道的磁盘驱动器中的磁盘上的轨道上的磁头产生读取器到写入器偏移的方法和装置。 阅读器和写入器以不重叠的方式安装在头上,读取器和写入器之间的间隙被称为读写器偏移。 磁盘驱动器控制器可操作地连接到读取器和写入器。 磁盘驱动器控制器通过计算第一磁头位置x1和第二磁头位置x2之间的差来确定每个轨道的磁头的读写器偏移。 第一头位置x1是用于在轨道上写入信息的最佳头部位置,而第二头部位置x2是头部的偏离轨迹能力(OTC)的中点。 OTC是轨道间距的一部分,阅读器期望阅读器读取没有不可避免的位错误的信息,使得写入器到读取器轨迹重合失调(TMR)最小化,因为磁头使读取器 - 写入器偏移以读取写在轨道上的信息或在轨道上写入信息。