Track pitch correction method and apparatus
    1.
    发明授权
    Track pitch correction method and apparatus 失效
    跟踪音调校正方法和装置

    公开(公告)号:US06751042B2

    公开(公告)日:2004-06-15

    申请号:US09896491

    申请日:2001-06-29

    IPC分类号: G11B5596

    CPC分类号: G11B5/59611 G11B5/012

    摘要: Many parallel tracks on a storage surface of a data handling device are arranged in a longitudinal direction. Each track has a track center comprising reference points for fine lateral positioning. Each successive pair of track centers has a succession of lateral offset distance having an average. Because there are many successive pairs of tracks, there are many average lateral offset distances defining a statistical distribution having a variance. The device includes a laterally movable transducer head and a longitudinally movable data surface. A signal is received from the transducer head while the data surface moves past the head. Many values each indicative of a lateral offset distance between a corresponding pair of lateral reference points are derived from the received signal. These offset-indicative values are used to shift at least some of the latitudinal reference points laterally so as to reduce this variance.

    摘要翻译: 在数据处理装置的存储表面上的许多平行轨迹沿纵向布置。 每个轨道具有包括用于精细横向定位的参考点的轨道中心。 每个连续的一对轨道中心具有平均的横向偏移距离的连续。 由于存在许多连续的轨道对,所以有许多平均横向偏移距离限定了具有方差的统计分布。该装置包括横向可移动的换能器头和纵向可移动的数据表面。 当数据表面移动通过头部时,从换能器头部接收信号。 从接收到的信号导出许多指示相应的一对横向参考点之间的横向偏移距离的值。 这些偏移指示值用于横向移动至少一些纬度参考点,以便减小该方差。

    Method for linearizing microactuator hysteresis for a disc drive
    2.
    发明授权
    Method for linearizing microactuator hysteresis for a disc drive 失效
    用于线性化磁盘驱动器的微致动器滞后的方法

    公开(公告)号:US06693763B2

    公开(公告)日:2004-02-17

    申请号:US09895666

    申请日:2001-06-28

    IPC分类号: G11B5596

    CPC分类号: G11B21/106 G11B5/5552

    摘要: Linearizing hysteresis of a microactuator for a disc drive by modeling the microactuator with a first polynomial equation to provide a linear displacement response of the microactuator responding to an applied voltage, deriving a set of constants from a plurality of burst patterns for use with the first polynomial equation to provide a set of variables for use in resolving the second polynomial equation to provide a set of equations from which a set of constants can be derived for use by the second polynomial equation to provide a voltage to the microactuator to displace the microactuator by a predetermined incremental distance.

    摘要翻译: 通过用第一多项式方程建模微致动器来对磁盘驱动器的微致动器进行线性化滞后,以提供响应于所施加的电压的微致动器的线性位移响应,从多个突发模式中导出与第一多项式一起使用的一组常数 方程式提供用于解析第二多项式方程式的一组变量,以提供一组方程式,从该组方程可以导出一组常数以供第二多项式方程使用,以向微致动器提供电压以将微致动器置换为微致动器 预定的增量距离。

    Adaptive recording band expansion methodology
    3.
    发明授权
    Adaptive recording band expansion methodology 有权
    自适应录音带扩展方法

    公开(公告)号:US07529054B2

    公开(公告)日:2009-05-05

    申请号:US10824861

    申请日:2004-04-15

    IPC分类号: G11B21/02

    摘要: A method, and system configured to implement the method, are provided. The method includes the steps of identifying a last usable track on a surface as a function of a parameter, and defining a standoff band of tracks relative to the last usable track to obtain an achieved maximum track on the surface. The last usable track is, in exemplary embodiments, a track beyond a default maximum track on a surface of a data storage medium.

    摘要翻译: 提供了一种配置为实现该方法的方法和系统。 该方法包括以下步骤:根据参数识别表面上的最后可用轨迹,并且相对于最后可用轨道定义轨道的间隔带以获得表面上实现的最大轨迹。 在示例性实施例中,最后可用的轨道是超出数据存储介质的表面上的默认最大轨道的轨道。

    Data storage device with shock sensor mounted on circuit board and provided adjacent shield and disc assembly protrusions
    4.
    发明授权
    Data storage device with shock sensor mounted on circuit board and provided adjacent shield and disc assembly protrusions 失效
    带有震动传感器的数据存储装置,安装在电路板上,并提供相邻的屏蔽和盘组件突起

    公开(公告)号:US07417823B2

    公开(公告)日:2008-08-26

    申请号:US11073952

    申请日:2005-03-07

    IPC分类号: G11B33/10 G11B33/12 G11B25/04

    摘要: An apparatus and method for mounting a shock sensor to the printed circuit board (PCB) of a disc drive are provided. In particular, the present invention allows the shock sensor to be mounted at any location on the printed circuit board rather than being limited to placement adjacent a mounting screw. The present invention includes a clamping mechanism for rigidly clamping the PCB to the head disc assembly (HDA) so that any shock is properly transmitted from the HDA to the PCB and then to the shock sensor. In one exemplary embodiment, the PCB is clamped between a shield and the HDA. The shock sensor is then position near the point at which the PCB is clamped so that the point of clamping provides transmission of any shock in the Z-axis to the shock sensor. Shocks in the X-Y axis direction are transmitted via the normal mounting screws.

    摘要翻译: 提供了一种用于将冲击传感器安装到盘驱动器的印刷电路板(PCB)的装置和方法。 特别地,本发明允许将冲击传感器安装在印刷电路板上的任何位置,而不是限于邻近安装螺钉放置。 本发明包括用于将PCB刚性地夹紧到头盘组件(HDA)的夹紧机构,使得任何冲击从HDA适当地传递到PCB,然后到达冲击传感器。 在一个示例性实施例中,PCB夹在屏蔽件和HDA之间。 然后,冲击传感器位于靠近PCB夹紧点的位置,因此夹紧点可将Z轴上的任何冲击传递给震动传感器。 X-Y轴方向的冲击通过普通的安装螺丝传递。