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1. 发明授权

US07974029B2 Disk drive biasing refresh zone counters based on write commands 有权
标题翻译：基于写入命令的磁盘驱动器偏置刷新区域计数器
公开(公告)号：US07974029B2
公开(公告)日：2011-07-05
申请号：US12533950
申请日：2009-07-31
申请人： Chun Sei Tsai , Sang Huynh , Anthony L. Pei , Don Brunnett , Jahangir John Kasraee , Kent W. Gibbons
发明人： Chun Sei Tsai , Sang Huynh , Anthony L. Pei , Don Brunnett , Jahangir John Kasraee , Kent W. Gibbons
IPC分类号： G11B27/36
CPC分类号： G11B5/012 , G11B2020/1869 , G11B2220/2516
摘要： A disk drive is disclosed comprising a disk comprising a plurality of tracks, and a head actuated over the disk. A plurality of refresh zones are defined, wherein each refresh zone corresponds to a plurality of the tracks. Data is written to a first refresh zone, and a first zone counter is updated for a second refresh zone at a first rate. Data is written to a third refresh zone, and the first zone counter is updated for the second refresh zone at a second rate different than the first rate.
摘要翻译：公开了一种磁盘驱动器，包括包括多个轨道的盘，以及在盘上致动的头。定义多个刷新区域，其中每个刷新区域对应于多个轨道。将数据写入第一刷新区域，并以第一速率更新第一刷新区域的第一区域计数器。数据被写入第三刷新区域，并且以与第一刷新区域不同的第二速率对第二刷新区域更新第一区域计数器。

2. 发明授权

US06795262B1 Method of modifying on-track declaration algorithm of a disk drive based upon detection of external vibration condition 有权
标题翻译：基于外部振动条件的检测来修改磁盘驱动器的轨道上声明算法的方法
公开(公告)号：US06795262B1
公开(公告)日：2004-09-21
申请号：US10185970
申请日：2002-06-28
申请人： Raffi Codilian , Kent W. Gibbons , Steven L. Webb
发明人： Raffi Codilian , Kent W. Gibbons , Steven L. Webb
IPC分类号： G11B1904
CPC分类号： G11B5/5582 , G11B5/596 , G11B19/04
摘要： A method of expanding the on-track operational range of a disk drive based upon detection of an external vibration condition. The method involves detecting that a vibration state exists and, while the existence of the vibration state is detected, modifying the default on-track-declaration algorithm such that a data transfer operation can be completed in less time than if the default on-track-declaration algorithm was in use.
摘要翻译：一种基于外部振动条件的检测来扩展磁盘驱动器的在轨操作范围的方法。该方法涉及检测到振动状态存在，并且当检测到振动状态的存在时，修改默认的在轨声明算法，使得数据传送操作可以在比默认的在轨 - 声明算法正在使用中。

3. 发明授权

US06781787B1 Adjusting seek current profile on the fly 有权
标题翻译：调整寻找当前配置文件
公开(公告)号：US06781787B1
公开(公告)日：2004-08-24
申请号：US10062835
申请日：2002-01-31
申请人： Raffi Codilian , Kent W. Gibbons
发明人： Raffi Codilian , Kent W. Gibbons
IPC分类号： G11B5596
CPC分类号： G11B5/5547
摘要： A hard disk drive that determines a saturation current of a voice coil motor (VCM) during the acceleration portion of a seek operation, and uses the information to advantageously adjust current profile for subsequent portion of the seek. One example of determining the saturation current is utilization of the peak value of the saturated acceleration current whose magnitude depends on operating conditions such as temperature and supply voltage. Traditional hard disk drives use predetermined seek current profiles that are formed conservatively to account for such variations in the available current to the VCM, at the expense of sacrificing some seek performance. By determining the available current for each seek operation, the current profile can be adjusted on the fly so as to improve the seek performance.
摘要翻译：一种在寻道操作的加速部分期间确定音圈电动机（VCM）的饱和电流的硬盘驱动器，并且使用该信息有利地调整追踪部分的当前轮廓。确定饱和电流的一个例子是其幅度取决于诸如温度和电源电压的操作条件的饱和加速电流的峰值的利用。传统硬盘驱动器使用保守形成的预定寻找电流配置文件来解释对VCM的可用电流的这种变化，而牺牲某些寻找性能为代价。通过确定每个搜索操作的可用电流，可以即时调整当前配置文件，以提高搜索性能。

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