公开(公告)号：US06104153A

公开(公告)日：2000-08-15

申请号：US256645

申请日：1999-02-23

申请人： Raffi Codilian ,  Steven Nemshick ,  Robert P. Ryan

发明人： Raffi Codilian ,  Steven Nemshick ,  Robert P. Ryan

IPC分类号： G11B19/20 ,  H02K7/10

CPC分类号： G11B19/20

摘要： A disk drive employs a method of operating a spindle motor to respond to a spin-down command to reduce the time required for spinning down and subsequently spinning up the spindle motor. The disk drive is connectable to a power supply having a fixed DC voltage. The spindle motor includes a stator having a plurality of windings and a rotor rotatable at a variable spin-rate. The rotor has an angular position relative to the stator. The disk drive includes switching elements coupled to the fixed DC voltage and the plurality of windings. The switching elements are controlled to sequentially apply the fixed DC voltage across a selected combination of the windings to generate a negative torque on the rotor such that a controlled braking operation is performed to decelerate the rotor to a selected spin-rate .omega.1. After the variable spin-rate is reduced to the selected spin-rate .omega.1, the switching elements are controlled to apply the fixed DC voltage across at least one of the windings such that a controlled rotor-stopping operation is performed to control the angular position of the rotor when the rotor comes to a stop at the end of the controlled rotor-stopping operation.

摘要翻译： 磁盘驱动器采用操作主轴马达来响应旋转减速命令的方法，以减少旋转和随后旋转主轴马达所需的时间。 磁盘驱动器可连接到具有固定DC电压的电源。 主轴电动机包括具有多个绕组的定子和可以可变转速旋转的转子。 转子具有相对于定子的角度位置。 磁盘驱动器包括耦合到固定DC电压和多个绕组的开关元件。 控制开关元件以顺序地施加固定的DC电压跨所选择的绕组组合，以在转子上产生负转矩，使得执行受控的制动操作以将转子减速至选定的旋转速率ω1。在 可变旋转速率降低到选定的旋转速率ω1，控制开关元件以在至少一个绕组上施加固定的DC电压，使得执行受控的转子停止操作以控制转子的角位置 转子在受控转子停止运转结束时停止转子。

公开(公告)号：US07436625B1

公开(公告)日：2008-10-14

申请号：US11032946

申请日：2005-01-11

申请人： Shan-Shuong Chiou ,  Shuo-Hao Chen ,  Raffi Codilian

发明人： Shan-Shuong Chiou ,  Shuo-Hao Chen ,  Raffi Codilian

IPC分类号： G11B17/02

CPC分类号： G11B19/2009

摘要： A spindle motor includes a shaft defining a longitudinal axis, a hub, a bearing assembly disposed between the hub and the shaft for allowing the hub to rotate, and a stator. The stator includes an inner diameter, an outer diameter, a stator tooth having a distal end, and a coil wound around the stator tooth. The stator tooth has a lower surface extending between the coil and the distal end of the stator tooth. The spindle motor includes a stator support structure supporting one of the inner and outer diameters, the stator support structure having an upper surface facing the lower surface, wherein at least one of the upper surface of the stator support structure and the lower surface of the stator tooth defines a cavity.

摘要翻译： 主轴电动机包括限定纵向轴线的轴，轮毂，设置在轮毂和轴之间以允许轮毂旋转的轴承组件和定子。 定子包括内径，外径，具有远端的定子齿和缠绕在定子齿上的线圈。 定子齿具有在线圈和定子齿的远端之间延伸的下表面。 主轴电动机包括支撑内径和外径之一的定子支撑结构，定子支撑结构具有面向下表面的上表面，其中定子支撑结构的上表面和定子的下表面中的至少一个 齿定义一个空腔。

公开(公告)号：US07023640B1

公开(公告)日：2006-04-04

申请号：US10856400

申请日：2004-05-27

申请人： Raffi Codilian ,  Lan V. Ngo ,  Norman D. Gardner

发明人： Raffi Codilian ,  Lan V. Ngo ,  Norman D. Gardner

IPC分类号： G11B19/04 ,  G11B21/02 ,  G11B19/02

CPC分类号： G11B19/04 ,  G11B5/5582 ,  G11B5/596

摘要： A disk drive comprising a first sensor mounted on a nominally stationary portion of the disk drive and adapted to detect acceleration disturbances of the disk drive. The disk drive further comprising: a dual-function subsystem having a first circuit adapted to provide a write-inhibit signal and a second circuit adapted to provide a feed-forward basis signal, the dual-function subsystem adapted to receive a first sensor signal from the first sensor and to provide (a) the write-inhibit signal based on the received first sensor signal and a first threshold value, and (b) the feed-forward basis signal based on the received first sensor signal.

摘要翻译： 一种磁盘驱动器，包括安装在磁盘驱动器的标称静止部分上并适于检测磁盘驱动器的加速度干扰的第一传感器。 所述磁盘驱动器还包括：双功能子系统，具有适于提供写禁止信号的第一电路和适于提供前馈基准信号的第二电路，所述双功能子系统适于从 并且基于所接收的第一传感器信号和第一阈值提供（a）禁止写入信号，以及（b）基于所接收的第一传感器信号的前馈基准信号。

公开(公告)号：US06972926B1

公开(公告)日：2005-12-06

申请号：US10062955

申请日：2002-01-31

申请人： Raffi Codilian

发明人： Raffi Codilian

IPC分类号： G11B5/60 ,  G11B25/04 ,  G11B33/12 ,  G11B33/14

CPC分类号： G11B33/121 ,  G11B5/6005 ,  G11B25/043 ,  G11B33/14

摘要： According to the present invention, there is provided a disk drive that includes a housing including a body portion and an airflow suppressor portion extending from the body portion. The disk drive includes a disk that includes an inner disk edge, an outer disk edge and a disk surface. The disk drive includes a head stack assembly rotatably coupled to the body portion. The head stack assembly includes an actuator arm including a first arm surface disposed adjacent the disk surface and an opposing second arm surface. The disk drive includes upstream and downstream regions. The airflow suppressor portion is radially disposed substantially between the inner and outer disk edges within the upstream region and extends entirely from the housing body portion beyond the second arm surface towards the disk surface for modifying disk rotation induced airflow upon the head stack assembly.

摘要翻译： 根据本发明，提供了一种盘驱动器，其包括壳体，壳体包括主体部分和从主体部分延伸的气流抑制部分。 磁盘驱动器包括包括内盘边缘，外盘边缘和盘表面的盘。 磁盘驱动器包括可旋转地联接到主体部分的磁头堆叠组件。 头部堆叠组件包括致动器臂，该致动器臂包括邻近盘表​​面设置的第一臂表面和相对的第二臂表面。 磁盘驱动器包括上游和下游区域。 气流抑制器部分基本上位于上游区域中的内盘边缘和外盘边缘之间，并且完全从壳体主体部分延伸超过第二臂表面朝向盘表面，用于修改头堆叠组件上的盘旋转引起的气流。

公开(公告)号：US06968422B1

公开(公告)日：2005-11-22

申请号：US10609241

申请日：2003-06-27

申请人： Raffi Codilian ,  Mark F. Vallis

发明人： Raffi Codilian ,  Mark F. Vallis

IPC分类号： G06F3/06 ,  G06F12/00 ,  G11B5/48 ,  G11B5/55

CPC分类号： G11B5/5582 ,  G06F3/0601 ,  G06F2003/0692 ,  G11B5/5547

摘要： A disk drive is disclosed which executes a rotational position optimization (RPO) algorithm to select a next command to execute from a command queue relative to an estimated access time. If an external vibration is detected, the RPO algorithm increases at least one of an estimated seek latency, an estimated settle latency, and an estimated rotational latency for each command in the command queue.

摘要翻译： 公开了一种磁盘驱动器，其执行旋转位置优化（RPO）算法来选择相对于估计的访问时间从命令队列执行的下一个命令。 如果检测到外部振动，则RPO算法增加命令队列中每个命令的估计寻呼延迟，估计结算延迟和估计旋转等待时间中的至少一个。

公开(公告)号：US06934114B1

公开(公告)日：2005-08-23

申请号：US10280684

申请日：2002-10-24

申请人： Raffi Codilian ,  Ralph A. Proud

发明人： Raffi Codilian ,  Ralph A. Proud

IPC分类号： G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59655

摘要： Reduced bit number wedge identification techniques for use within a rotating media storage device (RMSD) are disclosed. The RMSD includes a disk having a circumferential track that includes a plurality of embedded servo wedges utilized in track following. A substantial majority of the plurality of wedges include a reduced bit wedge ID field that does not have a sufficient number of bits to uniquely identify the wedge within the track. A combined wedge ID code is formed from reading at least first and second reduced bit wedge ID numbers from first and second wedges, respectively, which is used to uniquely identifying a wedge.

摘要翻译： 公开了在旋转介质存储设备（RMSD）内使用的减少位数楔识别技术。 RMSD包括具有包括在跟踪中使用的多个嵌入式伺服楔的圆周轨道的盘。 多个楔形体的绝大多数包括不具有足够数量的位以唯一地识别轨道内的楔形物的减小的位楔ID ID字段。 通过分别读取来自第一和第二楔形的至少第一和第二缩小的比特楔形ID号来形成组合的楔形ID码，其用于唯一地识别楔形物。

公开(公告)号：US06906880B1

公开(公告)日：2005-06-14

申请号：US09967837

申请日：2001-09-28

申请人： Raffi Codilian

发明人： Raffi Codilian

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/024 ,  G11B5/48 ,  G11B5/03

CPC分类号： G11B5/024 ,  G11B5/012 ,  G11B5/4886 ,  G11B2005/0013

摘要： A method of erasing a disk by applying a direct current to a transducer while the transducer is moved in a selected manner relative to the rotating disk. The rotating disk in conjunction with the erasing transducer moving in a first direction in a substantially continuous and smooth manner yields a helical shaped erased path on the disk. Such helical erasure of the disk is faster than conventional erasure method that erases the disk by erasing in concentric circular paths. To erase in circular paths, the transducer needs to be positioned on that circular path, and positioning of the transducer involves a repositioning time that can be significant. The helical erasure method substantially eliminates the repositioning time since the path of the transducer is substantially continuous and smooth. The reduction in erasure time by use of helical erasure method is substantial when compared to the total erasure time.

摘要翻译： 当换能器以相对于旋转盘选择的方式移动时，通过将直流电流施加到换能器来擦除盘的方法。 旋转盘与擦除换能器一起以基本连续且平滑的方式在第一方向上移动，在盘上产生螺旋形的擦除路径。 盘的这种螺旋擦除比通过擦除同心圆形路径擦除盘的常规擦除方法更快。 要以圆形路径擦除，传感器需要定位在该圆形路径上，并且传感器的定位涉及可能很重要的重新定位时间。 螺旋擦除方法基本上消除了重新定位时间，因为换能器的路径基本连续且平滑。 与总擦除时间相比，通过使用螺旋擦除方法的擦除时间的减少是相当大的。

公开(公告)号：US06892313B1

公开(公告)日：2005-05-10

申请号：US09887583

申请日：2001-06-21

申请人： Raffi Codilian ,  Anil Sareen

发明人： Raffi Codilian ,  Anil Sareen

IPC分类号： G06F1/32 ,  G06F3/06

CPC分类号： G06F3/0653 ,  G06F1/3203 ,  G06F1/3268 ,  G06F3/0625 ,  G06F3/0674 ,  Y02D10/154

摘要： The invention may be embodied in a method for operating a disk drive in a mobile device to optimize power usage. 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. Immediately after responding to a disk access command, the disk drive is in first operating mode that consumes a relatively high level of power and may transition to a second operating mode that consumes a relatively low level of power. A transition from the second operating mode to the first operating mode consumes a transition quantity of power. A predictive technique tracks a user's usage pattern and adapts an operating mode transition time based on the usage pattern.

摘要翻译： 本发明可以体现在用于操作移动设备中的盘驱动器以优化功率使用的方法中。 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。 在响应磁盘访问命令之后，磁盘驱动器处于第一操作模式，其消耗相对较高的功率电平，并且可以转换到消耗相对较低电力级别的第二操作模式。 从第二操作模式到第一操作模式的转变消耗功率的转换量。 预测技术跟踪用户的使用模式，并根据使用模式调整工作模式转换时间。

公开(公告)号：US06885514B1

公开(公告)日：2005-04-26

申请号：US09920665

申请日：2001-07-31

申请人： Raffi Codilian ,  William D. Johns ,  Charles A. Park ,  David D. Nguyen ,  Jack M Chue

发明人： Raffi Codilian ,  William D. Johns ,  Charles A. Park ,  David D. Nguyen ,  Jack M Chue

IPC分类号： G11B5/596 ,  G11B21/02 ,  G11B27/36 ,  H04R31/00

CPC分类号： G11B5/59633 ,  G11B5/59638 ,  Y10T29/49036

摘要： A method of manufacturing a disk drive and a disk drive made with such method where the width of the read element and the width of the write element are both measured at servo-writing time and the track pitch of the disk drive is set on the basis of those measurements. Disk drives with superior head width combinations are servo-written with a narrower track pitch in order to have a higher storage capacity. Disk drives with inferior head width combinations are detected before servo-writing so that the disk drive may be servo-written with wider track pitch rather than with a nominal track pitch that results in a subsequent drive failure during initial burn-in (IBI). The heads are used more efficiently in that heads that are more capable are used to their ability and less capable heads that would otherwise be disposed of are used at all. Fewer disk drives are required to be reworked and returned to the servo-writing process.

摘要翻译： 一种制造盘驱动器和磁盘驱动器的方法，其中读取元件的宽度和写入元件的宽度均以伺服写入时间测量，并且基于磁盘驱动器的磁道间距设置 的这些测量。 具有优异头宽度组合的磁盘驱动器以较窄的磁道间距进行伺服写入，以具有更高的存储容量。 在伺服写入之前检测到具有较差头部宽度组合的磁盘驱动器，以便磁盘驱动器可以以更宽的磁道间距进行伺服写入，而不是在初始老化（IBI）期间导致后续驱动器故障的标称磁道间距。 头部被更有效地使用在那些使用能力更强的头部，否则将被处理的头部不太可用。 需要重新加工更少的磁盘驱动器并返回到伺服写入过程。

公开(公告)号：US06791782B1

公开(公告)日：2004-09-14

申请号：US10066223

申请日：2002-01-31

申请人： Raffi Codilian ,  William D. Johns ,  Joseph M. Viglione

发明人： Raffi Codilian ,  William D. Johns ,  Joseph M. Viglione

IPC分类号： G11B1546

CPC分类号： G11B5/59611 ,  G11B19/28

摘要： A method and an apparatus select the operational spindle rotation rate for a disk drive based on measured performance of the head-disk assembly. The position error values are measured and analyzed to generate a position error metric. Based on the value of the position error metric, an operational spindle rotation rate is selected for use when the head-disk assembly is combined with a controller to produce a disk drive.

摘要翻译： 一种方法和装置，基于头磁盘组件的测量性能来选择磁盘驱动器的操作主轴旋转速率。 测量和分析位置误差值以产生位置误差度量。 基于位置误差度量的值，当头盘组件与控制器组合以产生磁盘驱动器时，选择操作主轴旋转速率用于使用。