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1. 发明授权

US07212361B1 Disk drive with temperature compensation of write current 有权
标题翻译：具有写入电流温度补偿的磁盘驱动器
公开(公告)号：US07212361B1
公开(公告)日：2007-05-01
申请号：US10029478
申请日：2001-12-20
申请人： Richard Pederson , Dale Landgren , Jerry Moline , David Rewerts
发明人： Richard Pederson , Dale Landgren , Jerry Moline , David Rewerts
IPC分类号： G11B27/36
CPC分类号： G11B20/1816 , G01R31/3171 , G11B5/3136 , G11B5/40 , G11B5/455 , G11B27/36 , G11B2005/001 , G11B2220/2516
摘要： A disk drive provides temperature compensation for write current. The write current not only provides an acceptable bit error rate for data written to and read from the disk, but also prevents write induced instability in the head. Furthermore, the write current prevents excessive pole tip protrusion. As a result, the write current ensures that data is reliably stored and retrieved at a given temperature.
摘要翻译：磁盘驱动器为写入电流提供温度补偿。写入电流不仅为写入和读取磁盘的数据提供了可接受的误码率，而且防止了写入引起的磁头不稳定。此外，写入电流防止过多的极尖突出。因此，写入电流确保在给定温度下可靠地存储和检索数据。

2. 发明授权

US07352525B1 Hard disk drive fly height adjust method and apparatus during error recovery 有权
标题翻译：错误恢复期间的硬盘驱动器飞行高度调整方法和装置
公开(公告)号：US07352525B1
公开(公告)日：2008-04-01
申请号：US11449579
申请日：2006-06-07
申请人： Rajita Shrestha , Christine Green , Jerry Moline
发明人： Rajita Shrestha , Christine Green , Jerry Moline
IPC分类号： G11B21/02
CPC分类号： G11B19/041 , G11B5/6029 , G11B5/607
摘要： Data recovery, following a read error in a hard disk drive, is provided which includes an adjustment of fly height. In one embodiment, some re-reads are performed by both adjusting the fly height and the off-track positioning of the read head. In one embodiment, two or more fly heights are normally used during read/write operations such as in a zoned manner, and adjustments to fly heights are performed with respect to the fly height for the zone where the error occurred.
摘要翻译：提供硬盘驱动器读取错误后的数据恢复，其中包括飞行高度的调整。在一个实施例中，通过调整读取头的飞行高度和偏离轨迹的位置来执行一些重新读取。在一个实施例中，通常在诸如分区方式的读/写操作期间使用两个或更多个飞行高度，并且相对于发生错误的区域的飞行高度执行对飞行高度的调整。

3. 发明授权

US06883126B1 Method and apparatus for reducing error recovery time in hard disk drive 失效
标题翻译：减少硬盘驱动器中的错误恢复时间的方法和装置
公开(公告)号：US06883126B1
公开(公告)日：2005-04-19
申请号：US10008329
申请日：2001-11-07
申请人： Lace J. Herman , Jerry Moline
发明人： Lace J. Herman , Jerry Moline
IPC分类号： G01C29/00
CPC分类号： G11B20/18 , G11B20/1833 , G11B2020/183 , G11B2220/2516
摘要： An adaptive error recovery routine allows for the recovery from errors in read data of a disk drive. In one embodiment, a disk drive is provided which has an error memory having error memory elements used to record an error type and recovery step for each error recovered from the disk drive. If another error is detected that is of the same type and which is in a location close to a recorded error, the error recovery step used for the previous error is performed for the new error. If the previous error recovery step is not successful, the disk drive performs error recovery using an existing error recovery table, and omits the previous error recovery step.
摘要翻译：自适应错误恢复例程允许从磁盘驱动器的读取数据中的错误中恢复。在一个实施例中，提供了具有错误存储器的磁盘驱动器，该错误存储器具有用于记录从磁盘驱动器恢复的每个错误的错误类型和恢复步骤的错误存储器元件。如果检测到相同类型的错误并且位于接近记录错误的位置，则对于新错误执行用于先前错误的错误恢复步骤。如果以前的错误恢复步骤不成功，磁盘驱动器将使用现有的错误恢复表执行错误恢复，并省略以前的错误恢复步骤。

4. 发明申请

US20080165443A1 Method and device for compensating for thermal decay in a magnetic storage device 审中-公开
标题翻译：用于补偿磁存储装置中的热衰减的方法和装置
公开(公告)号：US20080165443A1
公开(公告)日：2008-07-10
申请号：US11651225
申请日：2007-01-09
申请人： Jerry Moline
发明人： Jerry Moline
IPC分类号： G11B5/02
CPC分类号： G11B5/5534 , G11B5/5565 , G11B5/59688
摘要： The present disclosure is directed to systems and methods of compensating for thermal decay of a magnetic data storage medium. In a particular embodiment, the method includes reading a calibration track on a magnetic data storage medium to obtain a first measurement of a track characteristic. The method also includes overwriting the calibration track with a first specific data pattern and reading the calibration track to obtain a second measurement of the track characteristic. The method also includes determining whether a thermal decay rate of the calibration track is acceptable based on the first measurement and the second measurement.
摘要翻译：本公开涉及补偿磁数据存储介质的热衰减的系统和方法。在特定实施例中，该方法包括读取磁性数据存储介质上的校准轨迹以获得轨道特性的第一测量。该方法还包括用第一特定数据模式覆盖校准轨迹并读取校准轨迹以获得轨道特性的第二测量。该方法还包括基于第一测量和第二测量确定校准轨道的热衰减速率是否可接受。

5. 发明授权

US07027251B1 Method and apparatus to control pole tip protrusion 失效
标题翻译：控制极尖突起的方法和装置
公开(公告)号：US07027251B1
公开(公告)日：2006-04-11
申请号：US10337912
申请日：2003-01-06
申请人： Neil Darragh , Jerry Moline , Bruce Emo
发明人： Neil Darragh , Jerry Moline , Bruce Emo
IPC分类号： G11B21/02
CPC分类号： G11B5/3136 , G11B5/455 , G11B5/6005 , G11B5/6064 , G11B2005/0002 , G11B2005/0018
摘要： A method and apparatus to control the amount by which thermal expansion causes a write head to extend toward a disk is provided. In one aspect, a single write operation uses two or more different write currents. A first write current is initially used, and is large enough to achieve desired magnetic flux at the disk. After the write current heats and expands the arm tip, and extends it toward the disk surface, the write current is reduced, to avoid or postpone the time at which thermal expansion might cause the tip to contact the disk, or cause other undesirable effects.
摘要翻译：提供一种用于控制热膨胀导致写头向盘延伸的量的方法和装置。在一个方面，单个写入操作使用两个或更多个不同的写入电流。最初使用第一写入电流，并且足够大以在盘处实现期望的磁通量。在写入电流加热并扩展臂尖之后，将其延伸到盘表面时，写入电流减小，以避免或延迟热膨胀可能导致尖端接触盘的时间，或引起其他不期望的影响。

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