公开(公告)号：US07151645B2

公开(公告)日：2006-12-19

申请号：US10669185

申请日：2003-09-23

申请人： Justin Won ,  Samir Mittal ,  EweChye Tan

发明人： Justin Won ,  Samir Mittal ,  EweChye Tan

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。

公开(公告)号：US20050063086A1

公开(公告)日：2005-03-24

申请号：US10669185

申请日：2003-09-23

申请人： Justin Won ,  Samir Mittal ,  EweChye Tan

发明人： Justin Won ,  Samir Mittal ,  EweChye Tan

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。

公开(公告)号：US20070198803A1

公开(公告)日：2007-08-23

申请号：US11348636

申请日：2006-02-07

申请人： Jonathan Haines ,  EweChye Tan

发明人： Jonathan Haines ,  EweChye Tan

IPC分类号： G06F12/00

CPC分类号： G06F3/0638 ,  G06F3/0619 ,  G06F3/0674

摘要： A method and apparatus associated with circuitry configured to perform a selected one of a plurality of different data integrity operations on stored data in relation to a manner in which the data are to be retrieved. In some embodiments a data storage device is partitioned into a plurality of partitions, and one of a plurality of different data integrity operations is performed on stored data in relation to which partition of the plurality of partitions the stored data is in.

摘要翻译： 一种与电路相关联的方法和装置，被配置为相对于要检索数据的方式对存储的数据执行多个不同数据完整性操作中的所选择的一个。 在一些实施例中，数据存储设备被划分成多个分区，并且对存储的数据所处的多个分区的哪个分区的存储数据执行多个不同的数据完整性操作之一。

公开(公告)号：US08200869B2

公开(公告)日：2012-06-12

申请号：US11348636

申请日：2006-02-07

申请人： Jonathan W. Haines ,  EweChye Tan

发明人： Jonathan W. Haines ,  EweChye Tan

IPC分类号： G06F13/00

CPC分类号： G06F3/0638 ,  G06F3/0619 ,  G06F3/0674

摘要： A method and apparatus associated with circuitry configured to perform a selected one of a plurality of different data integrity operations on stored data in relation to a manner in which the data are to be retrieved. In some embodiments a data storage device is partitioned into a plurality of partitions, and one of a plurality of different data integrity operations is performed on stored data in relation to which partition of the plurality of partitions the stored data is in.

摘要翻译： 一种与电路相关联的方法和装置，被配置为相对于要检索数据的方式对存储的数据执行多个不同数据完整性操作中的所选择的一个。 在一些实施例中，数据存储设备被划分成多个分区，并且对存储的数据所处的多个分区的哪个分区的存储数据执行多个不同的数据完整性操作之一。

公开(公告)号：US06671119B2

公开(公告)日：2003-12-30

申请号：US09836572

申请日：2001-04-17

申请人： Todd David Baumann ,  EweChye Tan

发明人： Todd David Baumann ,  EweChye Tan

IPC分类号： G11B5596

CPC分类号： G11B5/59627 ,  G11B5/59605 ,  G11B21/083

摘要： The present invention is a method of correcting radial position error signal (PES) values by utilizing predetermined error correction values located at predetermined locations in advance of their associated servo fields. Calculated correction values are written to zero-acceleration path (ZAP) fields on the disc during the manufacture process. ZAP fields are positioned before the servo fields whose PES they are designed to correct. The ZAP field is comprised of two or more correction data elements to correct subsequent PES values. As the read/write head flies along a track, it reads a ZAP field, and stores the PES correction data in local random access memory (RAM). Subsequently, the corresponding servo field is read and the stored PES correction data is used to correct the PES. Two types of ZAP fields are written on the disc—one type for read operations, another type for write operations. An arrangement of ZAP fields relative to servo and data track nulls allows for the read head to gather the ZAP field information in the write position, without having to move from the write position to the read position and back to the write position in the middle of a write operation.

摘要翻译： 本发明是通过利用位于其相关联的伺服磁场之前的预定位置处的预定误差校正值来校正径向位置误差信号（PES）值的方法。 计算的校正值在制造过程中写入盘上的零加速度路径（ZAP）场。 ZAP字段位于其设计用于校正的PES的伺服字段之前。 ZAP字段由两个或更多个校正数据元素组成，以校正随后的PES值。 当读/写头沿轨道飞行时，它读取ZAP字段，并将PES校正数据存储在本地随机存取存储器（RAM）中。 随后，读取对应的伺服字段，并使用存储的PES校正数据来校正PES。 两种类型的ZAP字段写在盘上，用于读取操作，另一种类型用于写入操作。 相对于伺服和数据轨迹零点的ZAP场的布置允许读取头在写入位置收集ZAP场信息，而不必从写入位置移动到读取位置并返回写入位置 一个写操作。