Zone based repeated runout error compensation
    1.
    发明申请
    Zone based repeated runout error compensation 有权
    基于区域的重复跳动误差补偿

    公开(公告)号:US20080225654A1

    公开(公告)日:2008-09-18

    申请号:US11724124

    申请日:2007-03-14

    IPC分类号: G11B7/00

    CPC分类号: G11B5/59627

    摘要: Compensation for repeated runout (RRO) error, such as in a data storage device servo circuit, is preferably carried out by obtaining a population distribution of RRO error values from at least selected ones of a subset of tracks. An RRO error compensation value is determined for each one of the subset of tracks when a variance characteristic of said population distribution meets a selected criterion. Preferably, a first track of a storage medium has a servo field at a first angular position on the medium, a repeated runout (RRO) error compensation field at a second angular position on the medium, and a user data field at a third angular position on the medium. An immediately adjacent second track preferably has a servo field at the first angular position and a user data field at the second angular position in lieu of an RRO error compensation field.

    摘要翻译: 针对重复跳动(RRO)错误的补偿,例如在数据存储设备伺服电路中,优选地通过从轨道子集中的至少选定的RRO误差值获得RRO误差值的总体分布来执行。 当所述人口分布的方差特征满足所选择的标准时,对于轨道子集中的每一个确定RRO误差补偿值。 优选地,存储介质的第一轨道在介质上的第一角度位置处具有伺服磁场,在介质上的第二角位置处的重复跳动(RRO)误差补偿场,以及在第三角位置处的用户数据场 在媒体上 最近相邻的第二轨道优选地具有位于第一角位置处的伺服场,而在第二角位置具有用户数据场,而不是RRO误差补偿场。

    Zone based repeated runout error compensation
    2.
    发明授权
    Zone based repeated runout error compensation 有权
    基于区域的重复跳动误差补偿

    公开(公告)号:US07589930B2

    公开(公告)日:2009-09-15

    申请号:US11724124

    申请日:2007-03-14

    IPC分类号: G11B5/596

    CPC分类号: G11B5/59627

    摘要: Compensation for repeated runout (RRO) error, such as in a data storage device servo circuit, is preferably carried out by obtaining a population distribution of RRO error values from at least selected ones of a subset of tracks. An RRO error compensation value is determined for each one of the subset of tracks when a variance characteristic of said population distribution meets a selected criterion. Preferably, a first track of a storage medium has a servo field at a first angular position on the medium, a repeated runout (RRO) error compensation field at a second angular position on the medium, and a user data field at a third angular position on the medium. An immediately adjacent second track preferably has a servo field at the first angular position and a user data field at the second angular position in lieu of an RRO error compensation field.

    摘要翻译: 针对重复跳动(RRO)错误的补偿,例如在数据存储设备伺服电路中,优选地通过从轨道子集中的至少选定的RRO误差值获得RRO误差值的总体分布来执行。 当所述人口分布的方差特征满足所选择的标准时,对于轨道子集中的每一个确定RRO误差补偿值。 优选地,存储介质的第一轨道在介质上的第一角度位置处具有伺服磁场,在介质上的第二角位置处的重复跳动(RRO)误差补偿场,以及在第三角位置处的用户数据场 在媒体上 最近相邻的第二轨道优选地具有位于第一角位置处的伺服场,而在第二角位置具有用户数据场,而不是RRO误差补偿场。

    Method and apparatus for maintaining servo stability during actuator saturation
    5.
    发明授权
    Method and apparatus for maintaining servo stability during actuator saturation 失效
    在执行器饱和期间保持伺服稳定性的方法和装置

    公开(公告)号:US06490119B1

    公开(公告)日:2002-12-03

    申请号:US09473264

    申请日:1999-12-27

    IPC分类号: G11B5596

    CPC分类号: G11B5/5552 G11B5/596

    摘要: A method and apparatus are provided for positioning a head over a disc in a disc drive while maintaining servo loop stability. The apparatus includes an actuator-head assembly having a large scale actuator and a micro-actuator that are both able to move the head over the disc. An anti-windup compensation component detects when a micro-actuator controller is producing a micro-actuator control value that will saturate the micro-actuator. Using the micro-actuator control value, the anti-windup compensation component generates a saturation tracking error signal. A summing component then combines a position value that the head generates based on its position over the disc with the saturation tracking error signal to form a position error value that masks the saturation of the micro-actuator.

    摘要翻译: 提供了一种方法和装置,用于将磁头定位在磁盘驱动器中的磁盘上,同时保持伺服环路的稳定性。 该装置包括具有能够将磁头移动到磁盘上的大型致动器和微致动器的致动器头组件。 防饱和补偿部件检测微致动器控制器何时产生将使微致动器饱和的微致动器控制值。 使用微执行器控制值,防饱和​​补偿分量产生饱和跟踪误差信号。 然后,求和分量基于其在盘上的位置产生的位置值与饱和度跟踪误差信号组合,以形成屏蔽微致动器的饱和度的位置误差值。

    Interleaved repeatable runout estimation
    8.
    发明申请
    Interleaved repeatable runout estimation 有权
    交错重复跳动估计

    公开(公告)号:US20050063086A1

    公开(公告)日:2005-03-24

    申请号:US10669185

    申请日:2003-09-23

    IPC分类号: G11B5/596

    CPC分类号: G11B5/59627

    摘要: A method and apparatus for reducing the effects of non-repeatable runout (NRRO) in the estimation of repeatable runout (RRO) in a disc drive is disclosed. PES information is a acquired in a way that leads to randomization of the phase of the NRRO, thereby decreasing the number of revolutions required to estimate the true RRO. A number of RRO estimation measurements are taken over a number of non-consecutive disc revolutions that are spaced in time. In one embodiment, one revolution of RRO data is collected from each head before collecting a second revolution of RRO data from any of the heads. In another embodiment, RRO estimation is concurrent with media certification, such that PES data is obtained while the head is in the write position and writes a track of data for media certification. Similarly, PES data for the read position is obtained while concurrently reading back the written data.

    摘要翻译: 公开了一种用于减少不可重复跳动(NRRO)在盘驱动器中的可重复跳动(RRO)估计中的影响的方法和装置。 PES信息是以导致NRRO阶段随机化的方式获得的,从而减少估计真实RRO所需的转数。 多个RRO估计测量取决于时间间隔的多个非连续盘旋转。 在一个实施例中,在从任何头部收集RRO数据的第二转之前,从每个头部收集RRO数据的一圈。 在另一个实施例中,RRO估计与媒体认证同时进行,使得在头部处于写入位置时获得PES数据,并且写入用于媒体认证的数据轨迹。 类似地,在同时读回写入数据的同时获得读取位置的PES数据。

    COPY STATION
    9.
    发明申请
    COPY STATION 审中-公开
    复制站

    公开(公告)号:US20120033537A1

    公开(公告)日:2012-02-09

    申请号:US13097204

    申请日:2011-04-29

    摘要: In an embodiment, a method for making copies of a master disc is described. The method includes receiving a master disc. The method also includes capturing an image of a label on a first side of the master disc. The method also includes generating a data image of data stored on the master disc. The method also includes making one or more copies of the master disc using one or more blank discs. Making the one or more copies includes recording the data image onto a data side of each of the one or more blank discs and printing the image of the label on an opposing side of each of the one or more blank discs.

    摘要翻译: 在一个实施例中,描述了制作母盘副本的方法。 该方法包括接收主盘。 该方法还包括在母盘的第一侧捕获标签的图像。 该方法还包括生成存储在主盘上的数据的数据图像。 该方法还包括使用一个或多个空白光盘制作主盘的一个或多个副本。 制作一个或多个副本包括将数据图像记录到每个一个或多个空白盘的数据侧上,并且在一个或多个空白盘的每一个的相对侧上打印标签的图像。

    Interleaved repeatable runout estimation
    10.
    发明授权
    Interleaved repeatable runout estimation 有权
    交错重复跳动估计

    公开(公告)号:US07151645B2

    公开(公告)日:2006-12-19

    申请号:US10669185

    申请日:2003-09-23

    IPC分类号: G11B5/596 G11B21/02

    CPC分类号: G11B5/59627

    摘要: A method and apparatus for reducing the effects of non-repeatable runout (NRRO) in the estimation of repeatable runout (RRO) in a disc drive is disclosed. PES information is a acquired in a way that leads to randomization of the phase of the NRRO, thereby decreasing the number of revolutions required to estimate the true RRO. A number of RRO estimation measurements are taken over a number of non-consecutive disc revolutions that are spaced in time. In one embodiment, one revolution of RRO data is collected from each head before collecting a second revolution of RRO data from any of the heads. In another embodiment, RRO estimation is concurrent with media certification, such that PES data is obtained while the head is in the write position and writes a track of data for media certification. Similarly, PES data for the read position is obtained while concurrently reading back the written data.

    摘要翻译: 公开了一种用于减少不可重复跳动(NRRO)在盘驱动器中的可重复跳动(RRO)估计中的影响的方法和装置。 PES信息是以导致NRRO阶段随机化的方式获得的,从而减少估计真实RRO所需的转数。 多个RRO估计测量取决于时间间隔的多个非连续盘旋转。 在一个实施例中,在从任何头部收集RRO数据的第二转之前,从每个头部收集RRO数据的一圈。 在另一个实施例中,RRO估计与媒体认证同时进行,使得在头部处于写入位置时获得PES数据,并且写入用于媒体认证的数据轨迹。 类似地,在同时读回写入数据的同时获得读取位置的PES数据。