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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。
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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。
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3.发明授权Method and system for dynamically allocating read and write sequence randomizer 有权动态分配读取和写入序列随机化器的方法和系统公开(公告)号：US08131920B2
公开(公告)日：2012-03-06
申请号：US11999933
申请日：2007-12-06
IPC分类号： G06F12/00
CPC分类号： G11B20/22 , G06F3/0619 , G06F3/064 , G06F3/0676 , G11B20/10009 , G11B2020/1843 , G11B2220/2516
摘要： A data formatting system and method to improve data efficiency and integrity in a hard disk are disclosed. One embodiment provides a disk drive system having a plurality of lookup tables which store a plurality of randomizer seeds which may be dynamically encoded into the preamble field of a customer data block if the customer data is deemed marginal. Encoding the randomizer seed into the preamble field prevents adjacent data track mis-writes and mis-reads.
摘要翻译： 公开了一种提高硬盘数据效率和完整性的数据格式化系统和方法。 一个实施例提供了一种具有多个查找表的磁盘驱动器系统，其存储多个随机化器种子，如果客户数据被认为是边缘的，则其可以被动态地编码到客户数据块的前导字段中。 将随机化器种子编码到前导字段防止相邻数据跟踪错误写入和误读。
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4.发明申请Method and system for dynamically allocating read and write sequence randomizer 有权动态分配读取和写入序列随机化器的方法和系统公开(公告)号：US20090150637A1
公开(公告)日：2009-06-11
申请号：US11999933
申请日：2007-12-06
IPC分类号： G06F12/02
CPC分类号： G11B20/22 , G06F3/0619 , G06F3/064 , G06F3/0676 , G11B20/10009 , G11B2020/1843 , G11B2220/2516
摘要： A data formatting system and method to improve data efficiency and integrity in a hard disk are disclosed. One embodiment provides a disk drive system having a plurality of lookup tables which store a plurality of randomizer seeds which may be dynamically encoded into the preamble field of a customer data block if the customer data is deemed marginal. Encoding the randomizer seed into the preamble field prevents adjacent data track mis-writes and mis-reads.
摘要翻译： 公开了一种提高硬盘数据效率和完整性的数据格式化系统和方法。 一个实施例提供了一种具有多个查找表的磁盘驱动器系统，其存储多个随机化器种子，如果客户数据被认为是边缘的，则其可以被动态地编码到客户数据块的前导字段中。 将随机化器种子编码到前导字段防止相邻数据跟踪错误写入和误读。
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5.发明授权Method and apparatus for predicting write failure resulting from flying height modulation 失效用于预测由飞行高度调制产生的写入故障的方法和装置公开(公告)号：US07486457B2
公开(公告)日：2009-02-03
申请号：US10077390
申请日：2002-02-15
申请人： David H. Jen , Mike Suk
发明人： David H. Jen , Mike Suk
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B19/04 , G11B20/10009 , G11B27/36 , G11B2005/0016 , G11B2005/3996 , G11B2220/20 , G11B2220/216
摘要： A method and apparatus for predicting write failure resulting from flying height modulation and initiating re-writing of data upon occurrence of the predicted write failure is disclosed. According to the present invention, if the slider or transducer flying height modulates during the write process, such modulation is detected, and a rewrite of the same data is forced. A write reassign may be initiated when a thermal signal exceeding the predetermined threshold is detected during the rewrite and/or a read/verify may be initiated after the rewrite.
摘要翻译： 公开了一种用于预测由飞行高度调制引起的写入故障和在发生预测写入故障时启动重新写入数据的方法和装置。 根据本发明，如果在写入过程中滑块或换能器飞行高度调制，则检测到这种调制，并强制重写相同的数据。 当在重写期间检测到超过预定阈值的热信号时，可以启动写入重新分配，和/或可以在重写之后启动读/验证。
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6.发明授权Method and system for writing data to a magnetic storage device in a relatively cold or hot environment 失效在相对冷或热的环境中将数据写入磁存储装置的方法和系统公开(公告)号：US06405277B1
公开(公告)日：2002-06-11
申请号：US09187622
申请日：1998-11-06
IPC分类号： G06F1200
CPC分类号： G11B19/04 , G11B5/00 , G11B5/012 , G11B33/14 , G11B33/144 , G11B2005/0002 , G11B2005/001
摘要： A method is described for storing data on a target track of a recordable medium in a storage device via a magnetic write head therein. The storage device has an operating parameter having an operational range with extreme at which the writing of data to said device is prohibited. A first threshold within said range is defined and proximate said first extreme and delimits a first operational subrange. The method including the steps of: monitoring said operating parameter; and determining whether the monitored parameter lies within said first subrange and if so, performing a first predetermined operation to compensate for deleterious effects on data storage caused thereby.
摘要翻译： 描述了一种用于经由其中的磁性写入头将数据存储在存储装置中的可记录介质的目标轨道上的方法。 存储装置具有操作参数，其操作范围为极限，在该操作范围内禁止向所述装置写入数据。 在所述范围内的第一阈值被定义并且接近所述第一极限并限定第一操作子范围。 该方法包括以下步骤：监视所述操作参数; 以及确定所监视的参数是否位于所述第一子范围内，如果是，则执行第一预定操作以补偿由此引起的对数据存储的有害影响。
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7.发明授权Method and apparatus for unloading head from disk before a shock to a disk drive system 失效在磁盘驱动系统发生冲击之前将磁头从磁盘卸载的方法和装置
公开(公告)号：US6101062A
公开(公告)日：2000-08-08
申请号：US986381
申请日：1997-12-08
申请人： David H. Jen , Mike Suk
发明人： David H. Jen , Mike Suk
CPC分类号： G11B21/025 , G11B5/5582
摘要： A method and apparatus for detecting harmful motion of a disk drive system to avoid a head crash. The motor spin current in the hard disk drive is used as a sensor to detect acceleration of the disk drive corresponding to a tipping or falling condition. In normal operation, the disk stack angular velocity (measured in revolutions per minute or RPM) is constantly monitored so that the disk drive control system can generate timing signals allowing the controller to accurately locate data addresses on the rotating disks. Disk stack RPM is accurately controlled at a constant value by a suitable feedback control loop which measures RPM and adjusts motor drive current to maintain the desired RPM. The rapidly rotating disk stack acts as a gyro system whose angular momentum resists any change in direction. In the event of a change in orientation of the disk drive such as that initiated by tipping or falling, gyroscopic forces are generated which act to increase friction of the bearings supporting the rotating disk stack resulting in a decrease in disk stack angular velocity. The change of disk stack RPM is detected by the normal feedback control loop electronics and an error signal can be generated to cause actuator park or unload action before impact of the falling disk drive occurs.
摘要翻译： 一种用于检测盘驱动系统的有害运动以避免头部碰撞的方法和装置。 硬盘驱动器中的电机自旋电流用作传感器，以检测对应于倾翻或下降状态的磁盘驱动器的加速度。 在正常操作中，不断监视磁盘堆叠角速度（以每分钟转/分钟为单位），以便磁盘驱动器控制系统可以生成定时信号，从而允许控制器准确地定位旋转磁盘上的数据地址。 通过合适的反馈控制回路将磁盘堆栈RPM精确控制在一个恒定的值，该循环测量RPM并调整电机驱动电流以维持所需的RPM。 快速旋转的磁盘堆栈充当陀螺仪系统，其角动量抵抗方向上的任何改变。 在诸如由倾翻或下降引起的磁盘驱动器的方向改变的情况下，产生陀螺力，其作用是增加支撑旋转盘堆叠的轴承的摩擦，导致磁盘堆叠角速度的降低。 磁盘堆栈RPM的变化由正常的反馈控制回路电路检测，并且可能会产生误差信号，从而在下降的磁盘驱动器发生冲击之前产生执行器驻留或卸载动作。
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公开(公告)号：US5798884A
公开(公告)日：1998-08-25
申请号：US571666
申请日：1995-12-13
申请人： Donald Ray Gillis , David H. Jen , Mike Suk
发明人： Donald Ray Gillis , David H. Jen , Mike Suk
摘要： A data storage system has a disk having a first, second and third zone. The first zone has rough texturing to prevent stiction between a slider at rest and the disk. The second zone has intermediate texturing to prevent stiction when a moving slider is in contact with the disk. The third zone has a smooth texture and is used for data recording. A control unit moves the slider between the zones as appropriate on power up and power down of the system. The system has an actuator latch having a bias device. The bias device allows the slider to be positioned between the first and second zones by selective energizing of the actuator while in the latched position.
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公开(公告)号：US06501624B1
公开(公告)日：2002-12-31
申请号：US08802469
申请日：1997-02-19
申请人： Donald Ray Gillis , David H. Jen , Mike Suk
发明人： Donald Ray Gillis , David H. Jen , Mike Suk
IPC分类号： G11B554
摘要： A data storage system has a disk having a first, second and third zone. The first zone has rough texturing to prevent stiction between a slider at rest and the disk. The second zone has intermediate texturing to prevent stiction when a moving slider is in contact with the disk. The third zone has a smooth texture and is used for data recording. A control unit moves the slider between the zones as appropriate on power up and power down of the system. The system has an actuator latch having a bias device. The bias device allows the slider to be positioned between the first and second zones by selective energizing of the actuator while in the latched position.
摘要翻译： 数据存储系统具有具有第一，第二和第三区域的盘。 第一个区域具有粗糙的纹理，以防止静止滑块和磁盘之间的静摩擦。 第二个区域具有中间纹理，以防止移动滑块与磁盘接触时产生粘滞。 第三区具有光滑的纹理，用于数据记录。 控制单元在上电和系统断电时适当地移动区域之间的滑块。 该系统具有具有偏置装置的致动器闩锁。 偏置装置允许滑块通过在处于锁定位置时选择性地激励致动器而定位在第一和第二区之间。
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公开(公告)号：US5827424A
公开(公告)日：1998-10-27
申请号：US721400
申请日：1996-09-26
CPC分类号： G11B33/1406 , B01D5/0042 , B01D53/002 , B01D53/261 , F25B21/02 , G11B33/1446 , B01D53/265 , G11B33/1453
摘要： A contaminant reduction system is shown for a disk drive assembly having a closed interior and slider disk components located therein which would be adversely affected by condensed volatiles generated within the assembly. A Peltier element is located within the closed interior of the disk drive assembly so as to condense volatiles present within the interior at a desired condensation point within the closed interior. A getter material, such as a microporous sintered alumina, is located within the closed interior of the disk drive assembly at the condensation point for permanently trapping and maintaining condensed volatiles which are condensed by the Peltier element.
摘要翻译： 示出了用于具有位于其中的封闭内部和滑块盘组件的磁盘驱动器组件的污染物减少系统，其将受到在组件内产生的冷凝的挥发物的不利影响。 帕尔贴元件位于盘驱动组件的封闭内部内，以便在内部存在的挥发物在期望的冷凝点冷凝在封闭的内部。 诸如微孔烧结氧化铝的吸气剂材料位于冷凝点处的盘驱动组件的封闭内部，用于永久地捕获并保持由珀尔帖元件冷凝的冷凝的挥发物。
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