Jerk detection for data storage device
    2.
    发明授权
    Jerk detection for data storage device 有权
    数据存储设备的检测

    公开(公告)号:US07965460B2

    公开(公告)日:2011-06-21

    申请号:US12544539

    申请日:2009-08-20

    申请人: Mark L. Elliott

    发明人: Mark L. Elliott

    IPC分类号: G11B27/36

    CPC分类号: G11B19/042

    摘要: A device comprising at least one sensor configured to sense disturbances applied to the data storage device and to generate signals based on the sensed disturbances, and a controller configured to receive the signals from the at least one sensor and to detect jerk events in the sensed disturbances based at least in part on vector differentials of the received signals.

    摘要翻译: 一种包括至少一个传感器的装置,所述至少一个传感器被配置为感测施加到所述数据存储装置的干扰并且基于所感测到的干扰产生信号;以及控制器,被配置为从所述至少一个传感器接收信号并且检测所感测到的干扰中的抖动事件 至少部分地基于接收信号的矢量差分。

    JERK DETECTION FOR DATA STORAGE DEVICE
    3.
    发明申请
    JERK DETECTION FOR DATA STORAGE DEVICE 有权
    数据存储设备的JERK检测

    公开(公告)号:US20110043944A1

    公开(公告)日:2011-02-24

    申请号:US12544539

    申请日:2009-08-20

    申请人: Mark L. Elliott

    发明人: Mark L. Elliott

    IPC分类号: G11B21/02

    CPC分类号: G11B19/042

    摘要: A device comprising at least one sensor configured to sense disturbances applied to the data storage device and to generate signals based on the sensed disturbances, and a controller configured to receive the signals from the at least one sensor and to detect jerk events in the sensed disturbances based at least in part on vector differentials of the received signals.

    摘要翻译: 一种包括至少一个传感器的装置,所述至少一个传感器被配置为感测施加到所述数据存储装置的干扰并且基于所感测到的干扰产生信号;以及控制器,被配置为从所述至少一个传感器接收信号并且检测所感测到的干扰中的抖动事件 至少部分地基于接收信号的矢量差分。

    Digital speed control for a brushless DC motor
    4.
    发明授权
    Digital speed control for a brushless DC motor 失效
    无刷直流电机的数字速度控制

    公开(公告)号:US4400654A

    公开(公告)日:1983-08-23

    申请号:US248644

    申请日:1981-03-27

    申请人: Mark L. Elliott

    发明人: Mark L. Elliott

    CPC分类号: H02P6/08 H02P23/22

    摘要: A digital control system is provided to regulate the speed of a brushless DC motor via pulse-width modulation. Digital counters are used to measure the difference between the time for a motor revolution and a reference time. This time difference is in turn used to control the time until the application of power during a fixed period. A motor speed decrease increases the difference in time between a motor revolution and the reference time. This decreases the power pulse delay time and results in an increased power-on time to bring the motor back up to nominal speed.

    摘要翻译: 提供数字控制系统,通过脉宽调制来调节无刷直流电机的转速。 数字计数器用于测量电机转速和参考时间之间的差值。 这个时间差又被用来控制在一段固定时间内施加电力的时间。 电机转速下降会增加电机转速与参考时间之间的时间差。 这会降低功率脉冲延迟时间,并导致增加上电时间,使电机恢复到额定转速。

    Digital velocity control for a disk drive servo system
    6.
    发明授权
    Digital velocity control for a disk drive servo system 失效
    磁盘驱动器伺服系统的数字速度控制

    公开(公告)号:US4677507A

    公开(公告)日:1987-06-30

    申请号:US869269

    申请日:1986-05-30

    申请人: Mark L. Elliott

    发明人: Mark L. Elliott

    IPC分类号: G11B21/08 G11B5/55

    CPC分类号: G11B21/085

    摘要: A high velocity seek deceleration technique is disclosed for seek operations of disk drives wherein measured time per track is compared to a predetermined time per track in a memory as indexed by number of tracks to end of seek determines an error value which adjusts a deceleration amplifier. The gain of digital output to the amplifier is adjusted depending on the number of tracks to end of seek, the higher the number, the higher the gain. Further, a variable bandwidth filter is employed to increase bandwidth as velocity decreases.

    摘要翻译: 公开了一种用于磁盘驱动器的寻道操作的高速搜索减速技术,其中每个磁道的测量时间与存储器中的每个磁道的预定时间进行比较,由索引结束寻找数量确定调整减速放大器的误差值。 数字输出到放大器的增益根据寻道结束的轨道数量进行调节,数字越大,增益越高。 此外,随着速度的降低,采用可变带宽滤波器来增加带宽。

    Disc drive servo system with dual head sampling
    7.
    发明授权
    Disc drive servo system with dual head sampling 失效
    光盘驱动伺服系统采用双头采样

    公开(公告)号:US06351342B1

    公开(公告)日:2002-02-26

    申请号:US08712638

    申请日:1996-08-28

    IPC分类号: G11B5596

    CPC分类号: G11B5/5526 G11B5/59688

    摘要: A servo system positions a transducer over a disc surface in a disc drive system. Disc surfaces in the drive each have a plurality of spaced servo samples recorded thereon. The servo samples on at least two of the disc surfaces are recorded in skewed relation to one another. A plurality of transducers are provided and one transducer is associated with each one of the plurality of disc surfaces. An actuator arm assembly is coupled to the transducers to move the transducers relative to the disc surfaces. A servo control system is coupled to the actuator arm assembly to control position of the actuator arm assembly. The servo control system includes a reader configured to read servo samples from at least two disc surfaces such that at least two servo samples are read within one servo time period.

    摘要翻译: 伺服系统将传感器定位在盘驱动系统中的盘表面上。 驱动器中的盘表面每个都具有记录在其上的多个间隔的伺服样品。 在至少两个盘表面上的伺服采样以彼此偏斜的关系记录。 提供多个换能器,并且一个换能器与多个盘表面中的每一个相关联。 致动器臂组件联接到换能器以相对于盘表面移动换能器。 伺服控制系统联接到致动器臂组件以控制致动器臂组件的位置。 伺服控制系统包括读取器,其被配置为从至少两个盘表面读取伺服样本,使得在一个伺服时间段内读取至少两个伺服样本。