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116 条记录 (耗时 0.033 秒)

    Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter
    53.
    发明授权
    Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter 失效
    用于利用数字滤波器执行磁盘装置中的磁头致动器的定位控制的方法和系统

    公开(公告)号：US06567230B1

    公开(公告)日：2003-05-20

    申请号：US09429696

    申请日：1999-10-28

    申请人： Naoyuki Kagami ,  Akira Tokizono ,  Sri M. Sri-Jayantha ,  Tatsuya Sakai ,  Isao Yoneda ,  Hien Phu Dang ,  Arun Sharma

    发明人： Naoyuki Kagami ,  Akira Tokizono ,  Sri M. Sri-Jayantha ,  Tatsuya Sakai ,  Isao Yoneda ,  Hien Phu Dang ,  Arun Sharma

    IPC分类号： G11B2102

    CPC分类号： H03H17/0294 ,  G11B5/5521 ,  G11B5/56

    摘要： A method and system for utilizing a digital filter for actuator positioning control in a disk device. In accordance with the method and system of the present invention multiple selectable filter modules are provided. Each of the multiple selectable filter modules functions in a serial or parallel filtering mode when selected. Multiple configurable registers are also provided wherein the configuration of each of the multiple configurable registers determines a selection of at least one of the multiple selectable filter modules. Particular ones of the multiple configurable registers are selected, such that a configuration of the digital filter is dynamically selectable in order to achieve a predetermined filter output.

    摘要翻译： 一种利用数字滤波器在盘装置中执行器定位控制的方法和系统。 根据本发明的方法和系统，提供了多个可选择的过滤器模块。 多个可选滤波器模块中的每一个在选择时以串行或并行滤波模式运行。 还提供了多个可配置寄存器，其中多个可配置寄存器中的每一个的配置确定多个可选择滤波器模块中的至少一个的选择。 选择多个可配置寄存器中的特定的寄存器，使得可以动态地选择数字滤波器的配置以便实现预定的滤波器输出。

    Disk-flutter servo control in rotating storage system with optimum disk thickness
    57.
    发明授权
    Disk-flutter servo control in rotating storage system with optimum disk thickness 有权
    旋转存储系统中的磁盘颤动伺服控制，磁盘厚度最佳

    公开(公告)号：US06339512B1

    公开(公告)日：2002-01-15

    申请号：US09276211

    申请日：1999-03-25

    申请人： S. M. Sri-Jayantha ,  Hien Dang ,  Arun Sharma ,  Kiyoshi Satoh ,  Tetsuo Ueda ,  Hideki Ohzeki ,  Nayouki Kagami ,  Kiochi Takeuchi

    发明人： S. M. Sri-Jayantha ,  Hien Dang ,  Arun Sharma ,  Kiyoshi Satoh ,  Tetsuo Ueda ,  Hideki Ohzeki ,  Nayouki Kagami ,  Kiochi Takeuchi

    IPC分类号： G11B5596

    CPC分类号： G11B5/6005 ,  G11B5/59627 ,  G11B21/21

    摘要： A hard disk has a servo loop and a rotating storage medium. The rotating storage medium has one or more significant flutter modes at frequencies below a zero cross frequency of a rejection transfer function of the servo loop. The effect of the forgoing is to allow the servo loop to better track a rotating medium that is subject to significant flutter. Peak filters with frequency bands that substantially overlap frequency bands of the significant flutter modes can also be added to the servo loop to further improve tracking. Multiple narrow band filters with frequency bands overlap can be used to cover the spectrum of a single flutter mode. Two lag-lead filters, the frequency responses of which overlap can be used to cover two adjacent significant flutter modes. At frequencies intermediate to the two adjacent flutter, modes, the lead caused by one filter, will be cancelled by the lag caused by the second.

    摘要翻译： 硬盘具有伺服回路和旋转存储介质。 旋转存储介质在低于伺服环路的拒绝传递函数的零交叉频率的频率下具有一个或多个显着颤振模式。 上述的效果是允许伺服回路更好地跟踪受到显着颤动的旋转介质。 具有基本上与重要抖动模式的频带重叠的频带的峰值滤波器也可以被添加到伺服环路中以进一步改善跟踪。 具有频带重叠的多个窄带滤波器可以用于覆盖单个颤振模式的频谱。 两个滞后引线滤波器，其重叠的频率响应可用于覆盖两个相邻的显着颤振模式。 在两个相邻颤振之间的频率中，模式，由一个滤波器引起的引线将被第二个引起的滞后所抵消。

    Repeatable runout free servo architecture in direct access storage device
    58.
    发明授权
    Repeatable runout free servo architecture in direct access storage device 失效
    可重复跳出自由伺服架构在直接存取存储设备

    公开(公告)号：US6097565A

    公开(公告)日：2000-08-01

    申请号：US594572

    申请日：1996-01-31

    申请人： Muthuthamby Sri-Jayantha ,  Arun Sharma ,  Hien Dang ,  Hirouki Suzuki

    发明人： Muthuthamby Sri-Jayantha ,  Arun Sharma ,  Hien Dang ,  Hirouki Suzuki

    IPC分类号： G11B21/10 ,  G11B5/596

    CPC分类号： G11B5/59627

    摘要： In a direct access storage device including a rotating disk, a head positioned for interaction with said disk, an actuator for carrying said head and a servo system for operating said actuator so as to follow a substantially circular track on said disk by responding to a position error signal, a method for reducing response of the servo system to radial runout of the circular tracks, comprising the steps of obtaining radial runout data; filtering the data; storing the filtered data; subtracting the filtered data from the position error signal to obtain a corrected position error signal; and using the corrected position error signal to control the servo system. A direct access storage device in accordance with the invention includes means for obtaining radial runout data; means for filtering the data; means for storing the filtered data; means for subtracting the filtered data from the position error signal to obtain a corrected position error signal; and means for controlling the servo system using the corrected position error signal.

    摘要翻译： 在包括旋转盘的直接存取存储装置中，用于与所述盘相互作用的头部，用于承载所述头部的致动器和用于操作所述致动器的伺服系统，以便通过响应于位置 误差信号，用于减小伺服系统对圆形轨道的径向跳动的响应的方法，包括以下步骤：获得径向跳动数据; 过滤数据; 存储经过滤的数据; 从位置误差信号中减去滤波后的数据，得到校正后的位置误差信号; 并使用校正的位置误差信号来控制伺服系统。 根据本发明的直接存取存储装置包括用于获得径向跳动数据的装置; 用于过滤数据的手段; 用于存储经过滤数据的装置; 用于从所述位置误差信号中减去所述滤波数据以获得校正的位置误差信号的装置; 以及用于使用校正的位置误差信号来控制伺服系统的装置。