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：US08307156B1

公开(公告)日：2012-11-06

申请号：US12952088

申请日：2010-11-22

申请人： Raffi Codilian ,  Gregory B. Thelin

发明人： Raffi Codilian ,  Gregory B. Thelin

IPC分类号： G06F12/00

CPC分类号： G11B5/02 ,  G06F3/061 ,  G06F3/0656 ,  G06F3/0676 ,  G06F12/0866 ,  G11B5/5547

摘要： A rotating media storage device (RMSD) that adaptively modifies pre-read operations is disclosed. The RMSD schedules a pre-read data segment on a second track of disk, commands a movable head to seek to the second track, and if an on-track condition is not met for the scheduled pre-read data segment, modifies the pre-read operation. In one example, modifying the pre-read operation includes canceling the pre-read operation and then performing a read data operation.

摘要翻译： 公开了一种自适应地修改预读操作的旋转介质存储设备（RMSD）。 RMSD在磁盘的第二磁道上调度预读数据段，命令可移动磁头寻找到第二磁道，并且如果调度的预读数据段不符合轨上条件， 读操作。 在一个示例中，修改预读操作包括取消预读操作，然后执行读数据操作。

公开(公告)号：US07274639B1

公开(公告)日：2007-09-25

申请号：US10850850

申请日：2004-05-21

申请人： Raffi Codilian ,  Dalwinder Singh

发明人： Raffi Codilian ,  Dalwinder Singh

IPC分类号： G11B7/00

CPC分类号： G11B20/1883 ,  G11B20/1879 ,  G11B2020/1893 ,  G11B2220/2516

摘要： A disk drive is disclosed comprising a disk having a plurality of data tracks, wherein each data track comprises a plurality of data sectors, and a head is actuated over the disk. A suspect sector list (SSL) stores a plurality of SSL entries, wherein each SSL entry identifies at least one suspect data sector. The disk drive further comprises a disk controller for executing an access command received from a host computer to access at least one of the data sectors. If an error is detected while executing the access command, the disk controller generates an SSL entry having a priority level selected from at least three priority levels and adds the SSL entry to the SSL. A verification operation is executed for each suspect data sector identified by each SSL entry, wherein the SSL entries are processed relative to the priority level assigned to each SSL entry.

摘要翻译： 公开了一种磁盘驱动器，其包括具有多个数据磁道的磁盘，其中每个数据磁道包括多个数据扇区，并且磁头在盘上被致动。 可疑扇区列表（SSL）存储多个SSL条目，其中每个SSL条目标识至少一个可疑数据扇区。 磁盘驱动器还包括盘控制器，用于执行从主计算机接收的访问命令以访问数据扇区中的至少一个。 如果在执行访问命令时检测到错误，则磁盘控制器将生成具有从至少三个优先级中选择的优先级的SSL条目，并将SSL条目添加到SSL。 对由每个SSL条目标识的每个可疑数据扇区执行验证操作，其中相对于分配给每个SSL条目的优先级来处理SSL条目。

公开(公告)号：US07031104B1

公开(公告)日：2006-04-18

申请号：US10137481

申请日：2002-04-30

申请人： Arafat M. Butt ,  Raffi Codilian ,  Kin-Cheok Pong

发明人： Arafat M. Butt ,  Raffi Codilian ,  Kin-Cheok Pong

IPC分类号： G11B33/14 ,  G11B5/54

CPC分类号： G11B5/6005 ,  G11B5/40 ,  G11B33/08 ,  G11B33/14

摘要： A disk drive includes an enclosure, a rotatable disk and an actuator arm, and also includes a plurality of arcuate channels. Airflow is created within the enclosure when the disk rotates. The plurality of arcuate channels facing the disk to decrease the turbulence of the airflow with respect to the actuator arm. The arcuate channels are formed on at least one portion of the enclosure.

摘要翻译： 磁盘驱动器包括外壳，可旋转盘和致动器臂，并且还包括多个弧形通道。 当磁盘旋转时，在外壳内创建气流。 多个弓形通道面对盘以减小气流相对于致动臂的湍流。 弓形通道形成在外壳的至少一部分上。

公开(公告)号：US06930848B1

公开(公告)日：2005-08-16

申请号：US10185932

申请日：2002-06-28

申请人： Raffi Codilian ,  Kamran Oveyssi

发明人： Raffi Codilian ,  Kamran Oveyssi

IPC分类号： G11B19/00 ,  G11B25/04 ,  G11B33/12

CPC分类号： G11B33/122 ,  G11B19/00 ,  G11B25/043

摘要： A mobile host device configured to draw electrical energy from an energy storage device includes a disk drive. The disk drive includes a disk drive enclosure including a base, a spindle motor attached to the base, a disk positioned on the spindle motor, a generator and a charging circuit. The generator may be coupled to the disk drive enclosure and/or the mobile host device and generates electrical energy from the motion of the mobile host device and/or disk drive. The charging circuit is configured to charge the energy storage device using the electrical energy generated by the generator.

摘要翻译： 被配置为从能量存储装置吸取电能的移动主机装置包括磁盘驱动器。 磁盘驱动器包括一个磁盘驱动器机壳，包括一个底座，一个连接到该底座的主轴电机，一个位于主轴电机上的磁盘，一个发电机和一个充电电路。 发电机可以耦合到磁盘驱动器机箱和/或移动主机设备，并且从移动主机设备和/或磁盘驱动器的运动产生电能。 充电电路被配置为使用由发电机产生的电能对能量存储装置充电。

公开(公告)号：US06914743B1

公开(公告)日：2005-07-05

申请号：US09728626

申请日：2000-11-30

申请人： Aswartha Narayana ,  Raffi Codilian ,  Lan V. Ngo

发明人： Aswartha Narayana ,  Raffi Codilian ,  Lan V. Ngo

IPC分类号： G11B5/55 ,  G11B5/596

CPC分类号： G11B5/5582 ,  G11B5/59694

摘要： Disclosed is a disk drive using an accelerometer to sense linear vibration and cancel its effects with an adaptive algorithm during track following. The accelerometer is oriented to detect acceleration associated with torque that tends to cause the actuator to move off-track notwithstanding the efforts of the servo control system. The accelerometer's filtered output is used to modify the control effort. The disk drive uses the position error signal to adaptively filter the accelerometer's output in an effort to mathematically converge on a set of optimal filter coefficients and thereby reduce the effect of vibration that may otherwise impose a torque on the actuator.

摘要翻译： 公开了一种磁盘驱动器，其使用加速度计来感测线性振动并且在跟踪期间利用自适应算法来消除其影响。 加速度计被定向以检测与扭矩相关联的加速度，尽管伺服控制系统的努力，倾向于使致动器移动离开轨道。 加速度计的滤波输出用于修改控制功能。 磁盘驱动器使用位置误差信号来自适应地过滤加速度计的输出，以便在数学上收敛于一组最佳滤波器系数，从而减少否则在致动器上施加扭矩的振动的影响。

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：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。