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1. 发明申请

US20100079903A1 ADAPTIVE DATA RECOVERY PROCEDURE BASED ON RADIAL POSITIONING 有权
标题翻译：基于径向定位的自适应数据恢复过程
公开(公告)号：US20100079903A1
公开(公告)日：2010-04-01
申请号：US12242673
申请日：2008-09-30
申请人： Hoan A. Au , Theofilos G. Fkiaras , David H. Jen , Bernd Lamberts , Kris Schouterden , Douglas M. Zuercher
发明人： Hoan A. Au , Theofilos G. Fkiaras , David H. Jen , Bernd Lamberts , Kris Schouterden , Douglas M. Zuercher
IPC分类号： G11B5/596
CPC分类号： G11B5/59622 , G11B5/59611
摘要： Data recovery information characterizes data recovery procedure (DRP) steps to be performed within a hard disk drive (HDD) in response to a miss. Particular data recovery information corresponds to a radial position of the actuator and, therefore, the position of the magnetic recording read/write head relative to the associated storage media at the location at which the miss occurred. The data recovery information is based on the physical shape of a write pole and on how the physical shape of the pole inherently affects operational data error associated with the head. Because of the foregoing characteristics of such data recovery information, a more efficient and performant data recovery procedure is performed based thereon.
摘要翻译：数据恢复信息表征在硬盘驱动器（HDD）响应于错过时执行的数据恢复过程（DRP）步骤。特定数据恢复信息对应于致动器的径向位置，并且因此对应于磁迹记录读/写头相对于未命中发生位置处的关联存储介质的位置。数据恢复信息基于写入极的物理形状以及极点的物理形状如何固有地影响与头相关联的操作数据错误。由于这种数据恢复信息的上述特征，基于此执行更有效和性能更好的数据恢复过程。

2. 发明授权

US07920350B2 Adaptive data recovery procedure based on radial positioning 有权
标题翻译：基于径向定位的自适应数据恢复程序
公开(公告)号：US07920350B2
公开(公告)日：2011-04-05
申请号：US12242673
申请日：2008-09-30
申请人： Hoan A. Au , Theofilos G. Fkiaras , David H. Jen , Bernd Lamberts , Kris Schouterden , Douglas M. Zuercher
发明人： Hoan A. Au , Theofilos G. Fkiaras , David H. Jen , Bernd Lamberts , Kris Schouterden , Douglas M. Zuercher
IPC分类号： G11B27/36
CPC分类号： G11B5/59622 , G11B5/59611
摘要： Data recovery information characterizes data recovery procedure (DRP) steps to be performed within a hard disk drive (HDD) in response to a miss. Particular data recovery information corresponds to a radial position of the actuator and, therefore, the position of the magnetic recording read/write head relative to the associated storage media at the location at which the miss occurred. The data recovery information is based on the physical shape of a write pole and on how the physical shape of the pole inherently affects operational data error associated with the head. Because of the foregoing characteristics of such data recovery information, a more efficient and performant data recovery procedure is performed based thereon.
摘要翻译：数据恢复信息表征在硬盘驱动器（HDD）响应于错过时执行的数据恢复过程（DRP）步骤。特定数据恢复信息对应于致动器的径向位置，并且因此对应于磁迹记录读/写头相对于未命中发生位置处的关联存储介质的位置。数据恢复信息基于写入极的物理形状以及极点的物理形状如何固有地影响与头相关联的操作数据错误。由于这种数据恢复信息的上述特征，基于此执行更有效和性能更好的数据恢复过程。

3. 发明授权

US06643084B1 Adaptive off-track recovery 失效
标题翻译：自适应偏离轨道恢复
公开(公告)号：US06643084B1
公开(公告)日：2003-11-04
申请号：US09553887
申请日：2000-04-20
申请人： Au Hoan Andrew , James M. Dervin , Theofilos G. Fkiaras , Xiaoyu Sui
发明人： Au Hoan Andrew , James M. Dervin , Theofilos G. Fkiaras , Xiaoyu Sui
IPC分类号： G11B509
CPC分类号： G11B19/04 , G11B5/012 , G11B5/5526 , G11B7/0946
摘要： A method and system for adaptively limiting an off-track recovery displacement of a recording head during an off-track data recovery operation. A head disk assembly (HDA) includes an actuator that positions the recording head in accordance with an actuator control signal. First, an off-track recover displacement threshold is determined utilizing an off-track data field which overlays an on-track data field. The recording head is displaced with respect to the track center until the on-track data field is read. The relative displacement required to retrieve the on-track data is utilized as the threshold. In response to a failed read attempt, a data recovery procedure commences whereby the recording head is incrementally displaced from the track center while attempting to recover the data. During the DRP, the predetermined off-track recovery threshold is utilized to limit the head displacement such that the input/output (I/O) data integrity of the off-track recovery is ensured.
摘要翻译：一种用于在偏离轨道数据恢复操作期间自适应地限制记录头的偏离轨迹恢复位移的方法和系统。头盘组件（HDA）包括根据致动器控制信号定位记录头的致动器。首先，使用覆盖轨道上数据字段的偏离磁道数据字段来确定偏离磁迹恢复位移阈值。记录头相对于轨道中心移位，直到读出轨道上数据字段。用于检索轨道上数据所需的相对位移用作阈值。响应于失败的读取尝试，数据恢复过程开始，由此记录头在尝试恢复数据时从轨道中心递增地移位。在DRP期间，利用预定的偏离轨道恢复阈值来限制磁头位移，从而确保非磁道恢复的输入/输出（I / O）数据完整性。

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