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    IDLE POWER SAVING FOR ACTUATOR DEVICE
    1.
    发明公开
    IDLE POWER SAVING FOR ACTUATOR DEVICE 审中-公开

    公开(公告)号：US20230360676A1

    公开(公告)日：2023-11-09

    申请号：US17735380

    申请日：2022-05-03

    Applicant: Seagate Technology LLC

    Inventor： Tze Ming Pang ,  MingZhong Ding ,  ChanFan Lau ,  Chi Sern Tan ,  Ye HaiBo

    IPC: G11B19/04 ,  G11B5/48

    CPC classification number: G11B19/047 ,  G11B5/4813 ,  G11B5/486

    Abstract: Systems and methods are disclosed for an actuator device or actuator control device to implement a low power savings mode. For example, a device can comprise an actuator arm including a first actuator and a second actuator, the second actuator configured to refine a movement of the actuator arm to a more precise position than use of merely the first actuator. A device can also comprise a control system configured to determine when the device is in an idle state and, when the device is in the idle state, disable the second actuator and perform a positional seek operation with the second actuator disabled. Power savings can occur from disabling the second actuator, which may also include disabling associated circuitry, such that it does not consume power or consumes a nominal (e.g., negligible or insignificant) amount of power during the associated seek operation.

    Idle power saving for actuator device
    2.
    发明授权
    Idle power saving for actuator device 有权

    公开(公告)号：US11790947B1

    公开(公告)日：2023-10-17

    申请号：US17735380

    申请日：2022-05-03

    Applicant: Seagate Technology LLC

    Inventor： Tze Ming Pang ,  MingZhong Ding ,  ChanFan Lau ,  Chi Sern Tan ,  Ye HaiBo

    IPC: G11B19/04 ,  G11B5/48

    CPC classification number: G11B19/047 ,  G11B5/486 ,  G11B5/4813

    Abstract: Systems and methods are disclosed for an actuator device or actuator control device to implement a low power savings mode. For example, a device can comprise an actuator arm including a first actuator and a second actuator, the second actuator configured to refine a movement of the actuator arm to a more precise position than use of merely the first actuator. A device can also comprise a control system configured to determine when the device is in an idle state and, when the device is in the idle state, disable the second actuator and perform a positional seek operation with the second actuator disabled. Power savings can occur from disabling the second actuator, which may also include disabling associated circuitry, such that it does not consume power or consumes a nominal (e.g., negligible or insignificant) amount of power during the associated seek operation.

    Detection of z-axis non-operation shock
    5.
    发明授权
    Detection of z-axis non-operation shock 有权

    公开(公告)号：US10176843B2

    公开(公告)日：2019-01-08

    申请号：US15883934

    申请日：2018-01-30

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Xiong Liu ,  MingZhong Ding ,  ChuenBuan Lee

    IPC: G11B5/596 ,  G11B20/18 ,  G11B5/39

    Abstract: Systems and methods for determining an occurrence of non-operation shock (NOS) in a disc drive are described. Such determining may be used to determine whether or not the disc drive should be recalibrated or compensated to account for changes induced by NOS. Determining NOS may be based at least in part on a harmonic of the spindle of the disc drive other than the first harmonic, such as a third harmonic of the spindle. In some embodiments, determining NOS may be based on the first harmonic of the spindle and at least one other harmonic of the spindle.

    Detection of Z-axis non-operation shock
    6.
    发明授权
    Detection of Z-axis non-operation shock 有权

    公开(公告)号：US09916858B1

    公开(公告)日：2018-03-13

    申请号：US15348409

    申请日：2016-11-10

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Xiong Liu ,  MingZhong Ding ,  ChuenBuan Lee

    IPC: G11B5/596 ,  G11B20/18 ,  G11B5/39

    CPC classification number: G11B20/1816 ,  G11B5/39

    Abstract: Systems and methods for determining an occurrence of non-operation shock (NOS) in a disc drive are described. Such determining may be used to determine whether or not the disc drive should be recalibrated or compensated to account for changes induced by NOS. Determining NOS may be based at least in part on a harmonic of the spindle of the disc drive other than the first harmonic, such as a third harmonic of the spindle. In some embodiments, determining NOS may be based on the first harmonic of the spindle and at least one other harmonic of the spindle.

    Write fault threshold for a set of tracks
    7.
    发明授权
    Write fault threshold for a set of tracks 有权
    为一组轨迹写入故障阈值

    公开(公告)号：US09236073B1

    公开(公告)日：2016-01-12

    申请号：US14520110

    申请日：2014-10-21

    Applicant: Seagate Technology LLC

    Inventor： Xiong Liu ,  Qiang Bi ,  Choon Kiat Lim ,  MingZhong Ding

    IPC: G11B15/18 ,  G11B5/596 ,  G11B5/09

    CPC classification number: G11B5/59627 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/1217

    Abstract: Systems and methods are disclosed having a write fault threshold for a set of tracks. A set of tracks may have a shared write fault threshold budget, and a write fault threshold for the second track may be selected based on the shared budget reduced by an off-track position error signal value of the first track. In certain embodiments, an apparatus may comprise a processor configured to determine a position error signal value for a first data track, set a write fault threshold for a second data track adjacent to the first data track based on the position error signal, and write data to the second data track based on the write fault threshold.

    Abstract translation: 公开了具有一组轨道的写入故障阈值的系统和方法。 一组轨道可以具有共享写入故障阈值预算，并且可以基于由第一轨道的偏离轨迹位置误差信号值减去的共享预算来选择用于第二轨道的写入故障阈值。 在某些实施例中，装置可以包括处理器，其被配置为确定第一数据磁道的位置误差信号值，基于位置误差信号设置与第一数据磁道相邻的第二数据磁道的写入故障阈值，以及写入数据 基于写入故障阈值到第二数据轨道。

    Dependent write fault threshold
    9.
    发明授权
    Dependent write fault threshold 有权
    相关写入故障阈值

    公开(公告)号：US09495988B1

    公开(公告)日：2016-11-15

    申请号：US14850560

    申请日：2015-09-10

    Applicant: Seagate Technology LLC

    Inventor： Xiong Liu ,  Qiang Bi ,  Choon Kiat Lim ,  MingZhong Ding

    IPC: G11B27/36 ,  G11B5/596 ,  G11B5/012 ,  G11B5/09

    CPC classification number: G11B5/59627 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/1217

    Abstract: Systems, apparatuses, and processes having a dependent write fault threshold are disclosed. A first sector may have a first write fault threshold and a second sector, adjacent to the first sector, may have a second write fault threshold, and the write fault thresholds can be variable based on a position error signal value of an adjacent sector. In some embodiments, the adjacent sectors may each be in an adjacent track. In other embodiments, the adjacent sectors may be in the same track. Further, a track may have two write fault thresholds, a positive direction threshold and a negative direction threshold; in some embodiments, only one direction's threshold may be variable based on the position error signal of the adjacent sector, while the opposite direction's threshold may be set to a default (e.g. pre-determined not on a sector by sector basis) value.

    Abstract translation: 公开了具有从属写入故障阈值的系统，设备和过程。 第一扇区可以具有第一写入故障阈值，并且与第一扇区相邻的第二扇区可以具有第二写入故障阈值，并且写入故障阈值可以基于相邻扇区的位置误差信号值而变化。 在一些实施例中，相邻扇区可以各自在相邻的轨道中。 在其他实施例中，相邻扇区可以在相同的轨道中。 此外，轨道可以具有两个写故障阈值，正方向阈值和负方向阈值; 在一些实施例中，只有一个方向的阈值可以基于相邻扇区的位置误差信号而变化，而相反方向的阈值可以被设置为默认值（例如，不是逐扇区预先确定的）。

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