公开(公告)号：US5886846A

公开(公告)日：1999-03-23

申请号：US655916

申请日：1996-05-31

申请人： Ich Pham ,  David Drouin ,  Evelyn Howard

发明人： Ich Pham ,  David Drouin ,  Evelyn Howard

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B21/08 ,  G11B21/10

CPC分类号： G11B21/106 ,  G11B21/083 ,  G11B5/5534 ,  G11B5/59627 ,  G11B5/5547

摘要： A method for applying an optimal seeking technique to a disk file with excessive repeatable runout includes a method of modifying a control signal for a rotary actuator arm of a disk drive. The control signal is modified during track seeking by adding a runout state that is calculated each time a servo sector of a target data track on a surface of a disk is sampled by read/write heads carried by the actuator arm. A calibration algorithm can be used during track following to determine runout magnitude and runout phase at various preselected calibration tracks on the surface of the disk. A seeking algorithm can be implemented to compensate for the relative runout magnitude and phase variations between present and target tracks.

摘要翻译： 对具有过度可重复跳动的盘文件应用最佳寻找技术的方法包括修改磁盘驱动器的旋转执行器臂的控制信号的方法。 通过添加每当通过由致动器臂承载的读/写头来对盘表面上的目标数据轨道的伺服扇区进行采样时计算出的跳动状态，在跟踪寻找期间修改控制信号。 轨道跟踪期间可以使用校准算法来确定磁盘表面上各种预选校准轨迹的跳动幅度和跳动相位。 可以实现搜索算法来补偿当前和目标轨道之间的相对跳动幅度和相位变化。

公开(公告)号：US6081400A

公开(公告)日：2000-06-27

申请号：US970859

申请日：1997-11-14

申请人： Li-Hsin Lu ,  Stephen R. Jackson ,  David Drouin

发明人： Li-Hsin Lu ,  Stephen R. Jackson ,  David Drouin

IPC分类号： G11B5/54 ,  G11B21/02 ,  G11B15/46

CPC分类号： G11B5/54

摘要： A technique for method for positioning a magneto resistive head located upon an actuator arm onto a loading ramp of a storage unit. The technique includes the steps of operating a removable magnetic disk at a first number of revolutions per second, the magnetic disk having an outer diameter, positioning the magneto resistive head adjacent to the removable magnetic disk, reading data from the removable magnetic disk, detecting a reset signal, producing a back electro-motive force in response to the reset signal, biasing the magneto resistive head towards the outer diameter of the removable magnetic disk in response to the reset signal and to the back electro-motive force, reducing a number of revolutions per second for the removable magnetic disk from the first number to a second number of revolutions per second, the first number greater than the second number; thereafter using an energy storage unit to bias the magneto resistive head onto the loading ramp, in response to the reset signal.

摘要翻译： 一种用于将位于致动器臂上的磁阻头定位到存储单元的加载斜坡上的方法技术。 该技术包括以第一转数/秒的速度操作可移动磁盘的步骤，磁盘具有外径，将磁阻头定位在与可移动磁盘相邻的位置，从可移动磁盘读取数据，检测一个 复位信号，响应于复位信号产生反向电动力，响应于复位信号和反电动力而将磁阻头朝向可移除磁盘的外径偏置，减少了数量 可移除磁盘从第一个数字转到第二个转数/秒，第一个数字大于第二个数字; 然后响应于复位信号，使用能量存储单元将磁阻头倾斜到加载斜坡上。

公开(公告)号：US20110320046A1

公开(公告)日：2011-12-29

申请号：US12803522

申请日：2010-06-29

申请人： David Drouin ,  David Hu ,  Sung Chung

发明人： David Drouin ,  David Hu ,  Sung Chung

IPC分类号： G02B26/10 ,  G05D19/02

CPC分类号： G02B26/0841 ,  G02B26/105

摘要： The resonance frequency of a forced torsionally oscillating mirror MEMS device can be controlled in the presence of perturbations by means of a closed loop feedback device and method of using it. The method is implemented through a simple algorithm, implemented in either software or hardware, that maintains the condition of resonance, or another selected frequency, by recursively determining that the center of the driving voltage pulse is positioned at a point on the measured positional waveform of the oscillating system.

摘要翻译： 通过闭环反馈装置和使用它的方法，可以在存在扰动的情况下控制强制扭转振荡镜MEMS装置的共振频率。 通过递归地确定驱动电压脉冲的中心位于测量的位置波形上的一个点上，通过简单的算法来实现，其通过软件或硬件实现，其维持谐振条件或另一选定频率 振荡系统。

公开(公告)号：US06226142B1

公开(公告)日：2001-05-01

申请号：US09075699

申请日：1998-05-11

申请人： David Drouin ,  Vien N Nguyen ,  Stephen R. Jackson

发明人： David Drouin ,  Vien N Nguyen ,  Stephen R. Jackson

IPC分类号： G11B5596

CPC分类号： G11B5/012 ,  G11B5/59655 ,  G11B5/82 ,  G11B2020/1234

摘要： A technique for formatting a magnetic disk for a removable magnetic cartridge includes the steps of providing the magnetic disk having a top surface and a bottom surface, writing a first servo track onto the top surface, the first servo track having a portion including a first gray code, a first position burst, and a second position burst, writing a second servo track onto the top surface adjacent to the first servo track, the second servo track having a portion including a second gray code, the second position burst, and a third position burst, and writing a third servo track onto the top surface adjacent to the second servo track, the third servo track having a portion including the second gray code, the third position burst and a fourth position burst, wherein a first data track comprises the first servo track, the second servo track and the third servo track.

摘要翻译： 用于格式化用于可移动磁盘的磁盘的技术包括以下步骤：提供具有顶表面和底表面的磁盘，将第一伺服磁道写入到顶表面上，第一伺服磁道具有包括第一灰度 代码，第一位置脉冲串和第二位置脉冲串，将第二伺服磁道写入与所述第一伺服磁道相邻的顶表面上，所述第二伺服磁道具有包括第二灰度代码，所述第二位置脉冲串和第三伺服磁道的部分 位置突发，以及将第三伺服磁道写入与所述第二伺服磁道相邻的所述顶表面上，所述第三伺服磁道具有包括所述第二灰度代码，所述第三位置脉冲串和第四位置脉冲串的部分，其中第一数据磁道包括 第一伺服轨道，第二伺服轨道和第三伺服轨道。

公开(公告)号：US08606410B2

公开(公告)日：2013-12-10

申请号：US12803522

申请日：2010-06-29

申请人： David Drouin ,  David Hu ,  Sung Chung

发明人： David Drouin ,  David Hu ,  Sung Chung

IPC分类号： G05B13/00

CPC分类号： G02B26/0841 ,  G02B26/105

摘要： The resonance frequency of a forced torsionally oscillating mirror MEMS device can be controlled in the presence of perturbations by means of a closed loop feedback device and method of using it. The method is implemented through a simple algorithm, implemented in either software or hardware, that maintains the condition of resonance, or another selected frequency, by recursively determining that the center of the driving voltage pulse is positioned at a point on the measured positional waveform of the oscillating system.

摘要翻译： 通过闭环反馈装置和使用它的方法，可以在存在扰动的情况下控制强制扭转振荡镜MEMS装置的共振频率。 通过递归地确定驱动电压脉冲的中心位于测量的位置波形上的一个点上，通过简单的算法来实现，其通过软件或硬件实现，其维持谐振条件或另一选定频率 振荡系统。

公开(公告)号：US06353510B2

公开(公告)日：2002-03-05

申请号：US09833216

申请日：2001-04-10

申请人： David Drouin

发明人： David Drouin

IPC分类号： G11B2102

CPC分类号： G11B21/02 ,  G11B5/54 ,  G11B5/5521 ,  G11B19/28 ,  G11B21/12 ,  G11B21/22

摘要： A system having a storage device including read/write heads for repositioning the read/write heads from a parking location to a position adjacent a surface of a magnetic disk, the storage device includes a spindle motor coupled to the magnetic disk, for accelerating the magnetic disk to at least a first number of revolutions per time period while the read/write heads are positioned at the parking location, and a solenoid control coupled to the read/write heads and to the spindle motor, for biasing the read/write heads towards the position adjacent the surface of the magnetic disk after the magnetic disk reaches the first number of revolutions per time period, wherein the spindle motor maintains a rotation of the magnetic disk at less than a second number of revolutions per time period before the read/write heads are positioned adjacent the surface of the magnetic disk, and wherein the spindle motor rotates the magnetic disk at a third number of revolutions per time period after the read/write heads are positioned adjacent the surface of the magnetic disk.

摘要翻译： 一种具有包括用于将读/写头从停车位置重新定位到与磁盘表面相邻的位置的读/写头的存储装置的系统，所述存储装置包括耦合到磁盘的主轴电机，用于加速磁 磁盘到每个时间段至少第一转数，而读/写磁头位于停车位置，以及耦合到读/写磁头和主轴电动机的螺线管控制器，用于将读/写头偏置 在磁盘在每个时间段达到第一转数之后与磁盘表面相邻的位置，其中主轴电动机在读/写之前每时间段以小于第二转数保持磁盘的旋转 磁头位于磁盘的表面附近，并且其中主轴电动机在rea之后以每个时间周期的第三转数旋转磁盘 d /写头位于磁盘表面附近。

公开(公告)号：US20100238588A1

公开(公告)日：2010-09-23

申请号：US12381817

申请日：2009-03-17

申请人： David Drouin ,  Billy Wahng

发明人： David Drouin ,  Billy Wahng

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A magnetic hard disk drive includes a method for eliminating that portion of track following error by a read/write transducer that is caused by repeatable runout of the disk tracks. The repeatable runout is eliminated by application of an iterative algorithm that calculates feed-forward correction terms based on gain coefficients iteratively calculated from the amplitude and phase portions of a Bode plot characterizing the system. The corrective coefficients can be inserted into the hard disk drive at a summing junction that redefines the centerline of the track, or at a summing junction that causes the actuator to follow the repeatable runout and make non-repeatable runout corrections relative thereto.

摘要翻译： 磁性硬盘驱动器包括用于消除由磁盘轨道的可重复跳动引起的读/写换能器的跟踪误差部分的方法。 通过应用迭代算法消除可重复的跳动，该迭代算法基于从表征系统的波特图的幅度和相位部分迭代计算的增益系数来计算前馈校正项。 校正系数可以在重新定义轨道的中心线，或者在使得致动器跟随可重复跳动并且相对于其产生不可重复的跳动校正的求和结点的求和点处插入到硬盘驱动器中。

公开(公告)号：US06369970B1

公开(公告)日：2002-04-09

申请号：US09321978

申请日：1999-05-28

申请人： Howard Steinhoff ,  David Drouin ,  Frank Morris

发明人： Howard Steinhoff ,  David Drouin ,  Frank Morris

IPC分类号： G11B17038

CPC分类号： G11B5/59633

摘要： A method of writing data to multiple disks on a servo track writing machine comprises the steps of providing a cylindrical disk stacking tool comprising a base and a spindle, loading a first disk onto the spindle in alignment with the base, loading a second disk onto said spindle in alignment with the first disk, placing the loaded disk stacking tool on the servo track writing machine, and simultaneously writing data to the disks with the servo track writing machine. As many disks as desired may be so written to. The disk stacking tool further includes a clamp for locking the disks in place.

摘要翻译： 将数据写入伺服轨迹写入机上的多个盘的方法包括以下步骤：提供包括基座和主轴的圆柱形盘堆叠工具，将第一盘与基座对准地装载到主轴上，将第二盘装载到所述 主轴与第一盘对准，将装入的盘堆叠工具放置在伺服轨迹写入机上，同时使用伺服轨迹写入机将数据写入盘。 根据需要，可能写得如此多的磁盘。 磁盘堆叠工具还包括用于将磁盘锁定到位的夹具。

公开(公告)号：US06191904B1

公开(公告)日：2001-02-20

申请号：US08970866

申请日：1997-11-14

申请人： Vien N. Nguyen ,  David Drouin

发明人： Vien N. Nguyen ,  David Drouin

IPC分类号： G11B509

CPC分类号： G11B5/5534 ,  G11B5/012 ,  G11B5/59605 ,  G11B5/59627 ,  G11B5/59683 ,  G11B20/10009

摘要： A technique for reading data from a magnetic disk includes the steps of providing the magnetic disk including a cylinder having a plurality servo sectors, a plurality of data sectors, and a zone data table, the plurality of servo sectors including a first servo sector, a second servo sector, a third servo sector, a fourth servo sector, and a fifth servo sector, the zone data table including at least a nominal timing latency between the fourth servo sector and a data sector from the plurality of servo sectors, reading the first servo sector, the second servo sector, the third servo sector, and the fourth servo sector from the magnetic disk, determining a first timing deviation for the first servo sector between the first servo sector and the second servo sector, determining a second timing deviation for the second servo sector between the second servo sector and the third servo sector, predicting a predicted third timing deviation for the fourth servo sector between the fourth servo sector and the fifth servo sector, in response to the first timing deviation and to the second timing deviation, modifying the nominal timing latency in response to the predicted third timing deviation to form a predicted timing latency, and waiting the predicted timing latency after reading the fourth servo sector before reading the data sector.

摘要翻译： 一种用于从磁盘读取数据的技术包括以下步骤：提供包括具有多个伺服扇区的圆柱体，多个数据扇区和区域数据表的磁盘，所述多个伺服扇区包括第一伺服扇区， 第二伺服扇区，第三伺服扇区，第四伺服扇区和第五伺服扇区，所述区域数据表至少包括来自多个伺服扇区的第四伺服扇区与数据扇区之间的标称定时等待时间，读取第一伺服扇区 伺服扇区，第二伺服扇区，第三伺服扇区和第四伺服扇区，确定第一伺服扇区与第二伺服扇区之间的第一伺服扇区的第一定时偏差，确定第二伺服扇区的第二定时偏差 第二伺服扇区和第三伺服扇区之间的第二伺服扇区，预测在第四伺服扇区与第四伺服扇区之间的第四伺服扇区的预测的第三定时偏差 以及第五伺服扇区，响应于第一定时偏差和第二定时偏差，响应于预测的第三定时偏差来修改标称定时延迟，以形成预测的定时等待时间，并且在读取之后等待预测的定时等待时间 第四伺服扇区在读数据扇区之前。

公开(公告)号：US20120085587A1

公开(公告)日：2012-04-12

申请号：US13084769

申请日：2011-04-12

申请人： David Drouin

发明人： David Drouin

IPC分类号： B60L8/00

CPC分类号： B60L8/006 ,  B60K16/00 ,  B60K2016/006 ,  F03D3/002 ,  F03D3/04 ,  F03D9/25 ,  F03D9/32 ,  F03D13/20 ,  F05B2240/941 ,  Y02E10/728 ,  Y02E10/74 ,  Y02T10/7083 ,  Y02T10/90

摘要： A modular wind turbine device mountable in a plurality of locations along the exterior of a vehicle. The device comprises a low profile air inlet, a rotatable turbine that utilizes incoming air flow for motive power, and an alternator device for transforming the rotation of the turbine into usable electric power. The air inlet is a raised air scoop that protrudes from the external surface of the vehicle, similar to forced air induction inlets or brake cooling inlets on current vehicles. The inlet is shrouded with a mesh screen to prevent discrete objects from entering or interfering with the turbine device. The turbine is an elongated cylinder with protruding fins that utilize the pressure of the incoming air flow to spin about its central axis. A side-mounted alternator provides a core that spins within a stator to produce an electric current. The electric current is fed to a power management system for controlling and powering a battery pack. The device is ideal for offsetting electric power usage in electric cars by utilizing the overflowing air pressure to induce mechanical motion and create an onboard power generation source.

摘要翻译： 模块化风力涡轮机装置可安装在沿着车辆外部的多个位置。 该装置包括低轮廓空气入口，利用进入的空气流用于动力的可旋转涡轮机，以及用于将涡轮机的旋转转换成可用电力的交流发电机装置。 空气入口是从车辆的外表面突出的升高的空气勺，类似于当前车辆上的强制进气口或制动器冷却入口。 入口用网眼罩覆盖，以防止离散的物体进入或干扰涡轮机设备。 涡轮机是具有突出翅片的细长圆筒，其利用进入的空气流的压力围绕其中心轴线旋转。 侧面安装的交流发电机提供在定子内旋转以产生电流的芯。 电流被馈送到用于控制和供电电池组的电力管理系统。 该装置是通过利用溢出的空气压力来引起机械运动并产生车载发电源来抵消电动汽车中的电力消耗的理想选择。