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    Single-pass self-servowriting method and system employing a low sector rate startup procedure
    3.
    发明授权
    Single-pass self-servowriting method and system employing a low sector rate startup procedure 失效
    单通道自伺服方式和采用低扇区率启动程序的系统

    公开(公告)号：US07405897B2

    公开(公告)日：2008-07-29

    申请号：US11639948

    申请日：2006-12-15

    申请人： Kenneth James Dougherty ,  Gary Allan Herbst ,  Jong Ming Lin

    发明人： Kenneth James Dougherty ,  Gary Allan Herbst ,  Jong Ming Lin

    IPC分类号： G11B21/10

    CPC分类号： G11B5/59644

    摘要： A self-servowriting (SSW) method that, with the actuator fully engaged against a compliant structure (e.g., a crashstop), first writes a tightly-spaced open-loop sequence of servo bursts in a segmented spiral path and then continues writing this tightly-spaced sequence under closed-loop servo control while reading back amplitude information from the servo bursts written earlier until the tightly-spaced burst pattern extends over several read-write head (RWH) offset intervals. With the actuator still engaged against the compliant structure, this tightly-spaced startup sequence is then read back by the closed servo control loop to write a number of concentric servo seed tracks, which are then self-propagated across the remainder of the disk surface to produce a final servopattern.

    摘要翻译： 自动伺服驱动（SSW）方法，其中致动器完全接合抵抗结构（例如，阻滞挡），首先在分段螺旋路径中写入紧密间隔的伺服脉冲串的开环序列，然后继续写紧 在闭环伺服控制下，从早期写入的伺服突发读回幅度信息，直到紧密间隔的脉冲串模式延伸到多个读写头（RWH）偏移间隔上为止。 当致动器仍然接合抵抗结构时，该紧密间隔的启动顺序然后由闭合的伺服控制回路读回以写入多个同心的伺服种子轨道，然后将它们跨越盘表面的其余部分自传播到 产生一个最终的伺服模式。

    SINGLE-PASS SELF-SERVOWRITING METHOD AND SYSTEM EMPLOYING A LOW SECTOR RATE STARTUP PROCEDURE
    4.
    发明申请
    SINGLE-PASS SELF-SERVOWRITING METHOD AND SYSTEM EMPLOYING A LOW SECTOR RATE STARTUP PROCEDURE 失效
    采用低速率启动程序的单通道自服务方法和系统

    公开(公告)号：US20080144210A1

    公开(公告)日：2008-06-19

    申请号：US11639948

    申请日：2006-12-15

    申请人： Kenneth James Dougherty ,  Gary Allan Herbst ,  Jong Ming Lin

    发明人： Kenneth James Dougherty ,  Gary Allan Herbst ,  Jong Ming Lin

    IPC分类号： G11B5/596

    CPC分类号： G11B5/59644

    摘要： A self-servowriting (SSW) method that, with the actuator fully engaged against a compliant structure (e.g., a crashstop), first writes a tightly-spaced open-loop sequence of servo bursts in a segmented spiral path and then continues writing this tightly-spaced sequence under closed-loop servo control while reading back amplitude information from the servo bursts written earlier until the tightly-spaced burst pattern extends over several read-write head (RWH) offset intervals. With the actuator still engaged against the compliant structure, this tightly-spaced startup sequence is then read back by the closed servo control loop to write a number of concentric servo seed tracks, which are then self-propagated across the remainder of the disk surface to produce a final servopattern.

    摘要翻译： 自动伺服驱动（SSW）方法，其中致动器完全接合抵抗结构（例如，阻滞挡），首先在分段螺旋路径中写入紧密间隔的伺服脉冲串的开环序列，然后继续写紧 在闭环伺服控制下，从早期写入的伺服突发读回幅度信息，直到紧密间隔的脉冲串模式延伸到多个读写头（RWH）偏移间隔上为止。 当致动器仍然接合抵抗结构时，该紧密间隔的启动顺序然后由闭合的伺服控制回路读回以写入多个同心的伺服种子轨迹，然后将它们跨越盘表面的其余部分自传播到 产生一个最终的伺服模式。

    Method and apparatus for controlling write operations of a data storage system subjected to a shock event
    5.
    发明授权
    Method and apparatus for controlling write operations of a data storage system subjected to a shock event 有权
    用于控制遭受冲击事件的数据存储系统的写入操作的方法和装置

    公开(公告)号：US06429990B2

    公开(公告)日：2002-08-06

    申请号：US09428828

    申请日：1999-10-28

    申请人： Louis Joseph Serrano ,  Gary Allan Herbst

    发明人： Louis Joseph Serrano ,  Gary Allan Herbst

    IPC分类号： G11B1904

    CPC分类号： G11B19/04

    摘要： A method and apparatus for controlling write operations for a data storage system during and after a shock event is disclosed. A shock sensor measures the magnitude of a shock event and compares the magnitude of the shock event to at least two predetermined thresholds. Write operations are then inhibited based upon the comparison of the magnitude of the shock event and the at least two predetermined thresholds. When the shock event meets a first upper threshold, the write is inhibited until the write is requalified. The write is executed if the measured shock event does not meet a second lower threshold and the write is paused for a predetermined time period when the measured shock event meets the second lower threshold but does not meet the first upper threshold.

    摘要翻译： 公开了一种用于在冲击事件期间和之后控制数据存储系统的写入操作的方法和装置。 冲击传感器测量冲击事件的大小并将冲击事件的大小与至少两个预定阈值进行比较。 然后基于冲击事件的大小与至少两个预定阈值的比较来禁止写入操作。 当冲击事件满足第一个上限阈值时，写入被禁止，直到写入被重新验证。 如果测量的冲击事件不满足第二较低阈值并且当测量的冲击事件满足第二较低阈值但不满足第一上限阈值时，写入暂停预定时间段，则执行写入。