公开(公告)号：US06847502B1

公开(公告)日：2005-01-25

申请号：US10185983

申请日：2002-06-28

申请人： Raffi Codilian

发明人： Raffi Codilian

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A rotating media storage device (RMSD) includes a disk having at least one track with a plurality of servo wedges, a moveable head, and a microprocessor. The microprocessor receives a plurality of position error signal (PES) values during track following and sums PES values for a plurality of different sets of servo wedges of the track to generate a plurality of shifted summed position error signal (SSPES) values. The microprocessor shifts the plurality of generated SSPES values by a phase shift value to generate a plurality of corrected shifted summed position error signal (CSSPES) values, which correspond to the repeatable runout (RRO) of the disk.

摘要翻译： 旋转介质存储装置（RMSD）包括具有至少一个具有多个伺服楔的轨道的盘，可动头和微处理器。 微处理器在跟踪跟踪期间接收多个位置误差信号（PES）值，并且对于轨道的多个不同伺服楔形集合的PES值求和，以产生多个移位的加和位置误差信号（SSPES）值。 微处理器将多个生成的SSPES值移位相移值，以产生与盘的可重复跳动（RRO）相对应的多个校正的移位的加法位置误差信号（CSSPES）值。

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。

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。

公开(公告)号：US06724564B1

公开(公告)日：2004-04-20

申请号：US09728630

申请日：2000-11-30

申请人： Raffi Codilian ,  David D. T. Nguyen ,  David L. Whitaker

发明人： Raffi Codilian ,  David D. T. Nguyen ,  David L. Whitaker

IPC分类号： G11B5596

CPC分类号： G11B5/5526 ,  G11B5/59605

摘要： A disk drive and methods for preventing a coil in a voice coil motor from overheating due to the application of excess current. The disk drive comprises a servo control system. The servo control system is adapted for applying a current to a coil of the voice coil motor thereby causing the voice coil motor to move the head according to a seek distance. The servo control system generates a plurality of seek profiles for each of a plurality of seek distances and a plurality of current limits for the plurality of seek profiles. Each of the plurality of seek profiles defines a plan for controlling the current to be applied to the coil while the voice coil motor is operated over the seek distance. The plurality of current limits each define a maximum current allowed while controlling the current to be applied to the coil.

摘要翻译： 一种磁盘驱动器和用于防止音圈电机中的线圈由于施加过电流而过热的方法。 磁盘驱动器包括伺服控制系统。 伺服控制系统适用于向音圈马达的线圈施加电流，从而使音圈马达根据搜索距离移动头部。 伺服控制系统针对多个寻道曲线的多个寻道距离和多个电流极限中的每一个生成多个寻道曲线。 多个寻道轮廓中的每一个定义了在音圈马达在寻道距离上操作时控制施加到线圈的电流的平面图。 多个电流限制各自限定允许的最大电流，同时控制施加到线圈的电流。

公开(公告)号：US06707637B1

公开(公告)日：2004-03-16

申请号：US10022152

申请日：2001-12-14

申请人： Raffi Codilian ,  Serge Hauert ,  Steven J. Alfred

发明人： Raffi Codilian ,  Serge Hauert ,  Steven J. Alfred

IPC分类号： G11B1708

CPC分类号： G11B17/02 ,  G11B17/038

摘要： An aspect of the invention can be regarded as a disk drive that includes a disk drive base and a spindle motor hub rotatably coupled to the disk drive base. The disk drive further includes a first disk disposed about the spindle motor hub. The disk drive further includes a second disk disposed about the spindle motor hub. The disk drive further includes a first disk spacer disposed between and in mechanical communication with the first and second disks. The first disk spacer has a first disk spacer first side disposed adjacent the first disk and an opposing first disk spacer second side disposed adjacent the second disk. The first disk spacer first side is defined by a first disk spacer first surface pattern. The first disk spacer second side is defined by a first disk spacer second surface pattern different than the first disk spacer first surface pattern.

摘要翻译： 本发明的一个方面可以被认为是包括盘驱动器基座和可旋转地联接到盘驱动器基座的主轴马达毂的盘驱动器。 磁盘驱动器还包括围绕主轴电机集线器设置的第一磁盘。 磁盘驱动器还包括围绕主轴电机集线器设置的第二磁盘。 磁盘驱动器还包括设置在第一和第二磁盘之间并与第一和第二磁盘机械通信的第一磁盘间隔件。 第一盘片隔离件具有邻近第一盘设置的第一盘间隔件第一侧和邻近第二盘设置的相对的第一盘间隔件第二侧。 第一盘间隔件第一侧由第一盘间隔件第一表面图案限定。 第一盘间隔件第二侧由不同于第一盘间隔件第一表面图案的第一盘间隔件第二表面图案限定。

公开(公告)号：US06697217B1

公开(公告)日：2004-02-24

申请号：US10011163

申请日：2001-11-30

申请人： Raffi Codilian

发明人： Raffi Codilian

IPC分类号： G11B512

CPC分类号： G11B33/121 ,  G11B25/043 ,  H05K3/284

摘要： A disk drive is disclosed comprising a head disk assembly (HDA) including an enclosure for housing a disk and a head actuated radially over the disk. A printed circuit board assembly (PCBA) is attached to the HDA enclosure, wherein the PCBA comprises at least one attached electrical component. A non-electrically conductive coating is bonded to at least part of the PCBA after attaching the electrical component to the PCBA.

摘要翻译： 公开了一种磁盘驱动器，其包括头盘组件（HDA），其包括用于容纳盘的外壳和在盘上径向地致动的头。 印刷电路板组件（PCBA）附接到HDA外壳，其中PCBA包括至少一个附接的电气部件。 在将电气部件连接到PCBA之后，非导电涂层结合到PCBA的至少一部分。

公开(公告)号：US06661597B1

公开(公告)日：2003-12-09

申请号：US09846843

申请日：2001-04-30

申请人： Raffi Codilian ,  Anil Sareen ,  Thomas D. Hanan

发明人： Raffi Codilian ,  Anil Sareen ,  Thomas D. Hanan

IPC分类号： G11B509

CPC分类号： G11B5/012 ,  G11B19/04 ,  G11B25/043 ,  G11B31/00

摘要： The invention may be embodied in a disk drive for use in a mobile device. The mobile device may be a hand held computing device such as a personal digital assistant (PDA) or a mobile terminal such as a cellular telephone. The mobile device includes a host processor for accessing data on the disk drive. The disk drive has a rotating disk media and a moveable read/write head disposed over the disk media. The disk media is divided into a first data storage zone and a second data storage zone. The data storage zones are radially disposed in discrete areas of the disk media and each zone has a plurality of tracks for storing data. The mobile device may write data to the first data storage zone when the mobile device is in a mobile environment. The mobile device may write data to the second data storage zone only when the mobile device is in a non-mobile environment and may not write data to the second data storage zone when the mobile device is in a mobile environment.

摘要翻译： 本发明可以体现在用于移动设备的磁盘驱动器中。 移动设备可以是诸如个人数字助理（PDA）或诸如蜂窝电话的移动终端的手持式计算设备。 移动设备包括用于访问磁盘驱动器上的数据的主机处理器。 磁盘驱动器具有旋转盘介质和设置在盘介质上的可移动读/写头。 磁盘介质分为第一数据存储区和第二数据存储区。 数据存储区域径向地布置在盘介质的离散区域中，并且每个区域具有用于存储数据的多个轨道。 当移动设备处于移动环境中时，移动设备可以向第一数据存储区域写入数据。 只有当移动设备处于非移动环境中时，移动设备才可以向第二数据存储区域写入数据，并且当移动设备处于移动环境中时可能不向第二数据存储区域写入数据。

公开(公告)号：US06614615B1

公开(公告)日：2003-09-02

申请号：US09539349

申请日：2000-03-31

申请人： Yie Ju ,  Raffi Codilian

发明人： Yie Ju ,  Raffi Codilian

IPC分类号： G11B5596

CPC分类号： G11B5/59622

摘要： A disk drive with a plant having an actual plant response G(z) and a servo controller that includes a feed-forward control path that operates with a modeled plant response G0(z) in order to output a feed-forward command effort. The plant includes a transducer that is moveable from a start position to a target position according to a total control effort. In addition to the feed-forward control path, the servo controller further includes a feedback control path that outputs a feedback command effort in response to an error signal e between a desired position and an indicated position, and an adaptive control path that monitors the error signal e during the first several samples of a seek in order to characterize any modeling error between the modeled plant response G0(z) and the actual plant response G(z) and to thereafter output an adaptive command effort during subsequent samples to compensate for such modeling error and thereby make the error signal e approach zero at the end of the seek or, equally speaking, to make the transducer 80 arrive at the target position at the end of the seek notwithstanding the modeling error.

摘要翻译： 具有实际设备响应G（z）的设备的磁盘驱动器和包括以建模的设备响应G0（z）进行操作以便输出前馈命令工作的前馈控制路径的伺服控制器。 该设备包括根据总控制力从起始位置移动到目标位置的换能器。 除了前馈控制路径之外，伺服控制器还包括反馈控制路径，其响应于期望位置和指示位置之间的误差信号e输出反馈命令力，以及监视误差的自适应控制路径 信号e在寻求的前几个样本期间，以便表征建模的设备响应G0（z）和实际设备响应G（z）之间的任何建模误差，并且此后在随后的采样期间输出自适应命令努力以补偿这样的 建模误差，从而使得误差信号e在寻找结束时接近零，或者同样地，使得换能器80在寻求结束时到达目标位置，尽管有建模误差。

公开(公告)号：US06594111B1

公开(公告)日：2003-07-15

申请号：US09920576

申请日：2001-07-31

申请人： Kamran Oveyssi ,  Raffi Codilian

发明人： Kamran Oveyssi ,  Raffi Codilian

IPC分类号： G11B1702

CPC分类号： H02K21/24 ,  G11B25/043 ,  H02K1/141

摘要： A spindle motor for use in a disk drive has a spindle motor hub having an axis of rotation, an annular magnet element coupled to the spindle motor hub, and a spindle motor stator. The spindle motor stator has a stator rim formed of a plurality of adjacent arc segments. The arc segments each respectively has opposing curved ends extending parallel to the axis of rotation. The curved ends of respective adjacent arc segments cooperatively form a plurality of stator teeth in operable communication with the magnet element for rotating the spindle motor hub. The spindle motor stator has a plurality of windings distributed along the stator rim. The windings each have a winding axis parallel to the axis of rotation and being disposed about respective ones of the stator teeth.

摘要翻译： 用于磁盘驱动器的主轴电动机具有具有旋转轴的主轴电动机毂，联接到主轴电动机毂的环形磁体元件和主轴电动机定子。 主轴电动机定子具有由多个相邻的弧段形成的定子轮辋。 弧段各自分别具有平行于旋转轴线延伸的相对弯曲端。 相应的相邻弧段的弯曲端部协同地形成与磁体元件可操作地连通的多个定子齿，用于旋转主轴电动机毂。 主轴电动机定子具有沿着定子轮辋分布的多个绕组。 绕组各自具有平行于旋转轴线的绕轴，并且围绕相应的定子齿设置。

公开(公告)号：US5650886A

公开(公告)日：1997-07-22

申请号：US526074

申请日：1995-09-08

申请人： Raffi Codilian ,  Donald Stupeck

发明人： Raffi Codilian ,  Donald Stupeck

IPC分类号： G11B19/00 ,  G11B19/20 ,  G11B19/28 ,  H02P23/00

CPC分类号： G11B19/00 ,  G11B19/20 ,  G11B19/28 ,  H02P23/16

摘要： A disk drive system for use in limited power applications is disclosed. The disk drive includes a spindle motor having two or more windings, along with a spindle motor driver which can drive the spindle motor in any of a unipolar, bipolar or tripolar mode. The bipolar or tripolar mode is used to start the disk drive and then the unipolar mode is used to operate the disk drive while data is being retrieved. By combining the three drive modes a large start current reduction and higher rotation velocities are achieved. Current consumption is further minimized by adaptively transitioning from bipolar to unipolar modes of operation. The disclosure also includes a general methodology for optimal motor K.sub.E and K.sub.M parameter selection.

摘要翻译： 公开了一种用于有限电力应用的磁盘驱动器系统。 磁盘驱动器包括具有两个或更多个绕组的主轴电机，以及可以单极，双极或三极模式中的任何一个驱动主轴电动机的主轴电动机驱动器。 双极或三极模式用于启动磁盘驱动器，然后在检索数据时使用单极模式来操作磁盘驱动器。 通过组合三种驱动模式，实现了大的启动电流降低和较高的旋转速度。 通过自适应地从双极模式转换为单极操作模式，进一步降低了电流消耗。 本公开还包括用于最佳马达KE和KM参数选择的一般方法。