公开(公告)号：US07558015B2

公开(公告)日：2009-07-07

申请号：US11693596

申请日：2007-03-29

申请人： Erhard Schreck ,  Rickmer Kose ,  Bruce Schardt ,  Davide Guarisco

发明人： Erhard Schreck ,  Rickmer Kose ,  Bruce Schardt ,  Davide Guarisco

IPC分类号： G11B21/02

CPC分类号： G11B19/04 ,  G11B5/6005 ,  G11B5/6064

摘要： In one example, a method is provided and includes comparing a measured change in spacing between a transducer element and a storage element in response to a fly height control signal with an expected change in spacing for the applied fly height control signal. The method also includes detecting an event condition based on the comparison between the measured change in spacing and the expected change in spacing.

摘要翻译： 在一个示例中，提供了一种方法，并且包括响应于飞行高度控制信号，比较所测量的换能器元件和存储元件之间的间隔的变化，以及所应用的飞行高度控制信号的间隔的预期变化。 该方法还包括基于所测量的间隔变化与间隔的期望变化之间的比较来检测事件条件。

公开(公告)号：US20070230018A1

公开(公告)日：2007-10-04

申请号：US11693596

申请日：2007-03-29

申请人： Erhard Schreck ,  Rickmer Kose ,  Bruce Schardt ,  Davide Guarisco

发明人： Erhard Schreck ,  Rickmer Kose ,  Bruce Schardt ,  Davide Guarisco

IPC分类号： G11B21/02

CPC分类号： G11B19/04 ,  G11B5/6005 ,  G11B5/6064

摘要： Detection of contact between a sensor, such as a data head or a slider, and a surface, such as the magnetic surface of a disk is achieved using the efficiency of actuator associated with the sensor. In this manner, the fly height of the sensor can be calibrated substantially continuously.

摘要翻译： 使用与传感器相关联的致动器的效率来实现传感器（例如数据头或滑块）与表面（例如盘的磁性表面）之间的接触的检测。 以这种方式，可以基本连续地校准传感器的飞行高度。

公开(公告)号：US07602577B1

公开(公告)日：2009-10-13

申请号：US11345122

申请日：2006-01-31

申请人： Rickmer Kose ,  Erhard Schreck ,  Frank Obregon

发明人： Rickmer Kose ,  Erhard Schreck ,  Frank Obregon

IPC分类号： G11B27/36 ,  G11B5/596

CPC分类号： G11B19/042 ,  G11B5/4826 ,  G11B5/4873 ,  G11B5/5552 ,  G11B19/045

摘要： A microactuator incorporated within an actuator assembly of a disk drive is used as a detection element for rapid off track events that may occur. Preferably, the microactuator employs one or more piezoelectric elements used for purposes of secondary actuation. Uncontrolled movement of the actuator across the disk results in the piezoelectric elements generating a voltage spike or signal that is analyzed to determine whether a rapid off track event has occurred. Rapid off track events are distinguished from other possible events, such as shock events. If a rapid off track event is detected, then remedial actions are taken to restore data integrity, to include executing restore commands such as rewriting selected data tracks. Dedicated piezoelectric elements may also be provided for detecting rapid off track events wherein these elements are not incorporated in the servo loop that controls positioning of the actuator.

摘要翻译： 将并入磁盘驱动器的致动器组件内的微型致动器用作可能发生的快速偏离轨迹事件的检测元件。 优选地，微致动器采用用于二次致动的一个或多个压电元件。 致动器跨越盘的不受控制的运动导致压电元件产生电压尖峰或信号，该电压尖峰或信号被分析以确定是否发生了快速关闭轨道事件。 快速离线事件与其他可能的事件（例如休克事件）区分开来。 如果检测到快速关闭轨道事件，则采取补救措施来恢复数据完整性，以包括执行恢复命令，例如重写所选数据轨道。 还可以提供专用压电元件用于检测快速偏离轨道事件，其中这些元件未被并入控制致动器定位的伺服回路中。

公开(公告)号：US06717759B1

公开(公告)日：2004-04-06

申请号：US10076592

申请日：2002-02-19

申请人： Genevieve Himle ,  Quinn Haddock ,  Davide Guarisco ,  Erhard Schreck

发明人： Genevieve Himle ,  Quinn Haddock ,  Davide Guarisco ,  Erhard Schreck

IPC分类号： G11B2736

CPC分类号： G11B5/3136 ,  G11B5/012 ,  G11B5/40 ,  G11B27/36 ,  G11B2005/001 ,  G11B2005/0013 ,  G11B2220/20

摘要： A hard disk is provided with tools for limiting the duty cycle (a group of variations of load with time). The write current is controlled by, e.g., limiting the duration of a given write cycle. The write cycle may involve writing data continuously along adjacent portions of the disk media (e.g., writing of data in adjacent segments of a track in the outer diameter (OD) region of a platter), with an intermittent duty write current.

摘要翻译： 硬盘提供了用于限制占空比的工具（一组负载随时间变化）。 写入电流由例如限制给定写周期的持续时间来控制。 写周期可以包括沿着盘介质的相邻部分连续地写入数据（例如，在间隔的占空比写入电流中，在盘的外径（OD）区域中的轨道的相邻段中写入数据）。

公开(公告)号：US07345837B1

公开(公告)日：2008-03-18

申请号：US11184273

申请日：2005-07-19

申请人： Erhard Schreck ,  Donald Brunnett ,  Hung V. Nguyen ,  Bruce Schardt ,  Andrew Vogan

发明人： Erhard Schreck ,  Donald Brunnett ,  Hung V. Nguyen ,  Bruce Schardt ,  Andrew Vogan

IPC分类号： G11B27/36 ,  G11B5/09

CPC分类号： G11B5/09

摘要： A disk drive includes a rotatable data storage disk, a transducer, an actuator, and a controller. The transducer is configured to read and write data on the disk. The actuator is configured to position the transducer relative to defined portions of the disk. The controller is configured to determine how many times data has been written to the defined portions of the disk. The controller is also configured to refresh data residing at a particular one of the defined portions of the disk when the number of times data has been written to the particular defined portion of the disk satisfies a threshold value.

摘要翻译： 磁盘驱动器包括可旋转数据存储盘，换能器，致动器和控制器。 传感器配置为在磁盘上读取和写入数据。 致动器被配置成相对于盘的限定部分定位换能器。 控制器被配置为确定数据被写入磁盘的定义部分的次数。 当数据已被写入盘的特定定义部分的次数满足阈值时，控制器还被配置为刷新驻留在盘的特定一个定义部分的数据。

公开(公告)号：US08065481B1

公开(公告)日：2011-11-22

申请号：US10828098

申请日：2004-04-20

申请人： Bernhard Hiller ,  Pantelis Alexopoulos ,  Don Brunnett ,  Chandra Buddhavaram ,  Thierry Chatard ,  David Chew ,  Samuel R. Duell ,  Jeff Griffiths ,  Johanna Hernandez ,  Robert L. Kimball ,  Eric Kvamme ,  LeRoy Leach ,  Michael Lee ,  James McGrath ,  Kathleen Fitzgerald, legal representative ,  Robert Milby ,  Bruce Schardt ,  Maurice Schlumberger ,  Erhard Schreck ,  Richard Sonnenfeld

发明人： Bernhard Hiller ,  Pantelis Alexopoulos ,  Don Brunnett ,  Chandra Buddhavaram ,  Thierry Chatard ,  David Chew ,  Samuel R. Duell ,  Jeff Griffiths ,  Johanna Hernandez ,  Robert L. Kimball ,  Eric Kvamme ,  LeRoy Leach ,  Michael Lee ,  James McGrath ,  Robert Milby ,  Bruce Schardt ,  Maurice Schlumberger ,  Erhard Schreck ,  Richard Sonnenfeld

IPC分类号： G06F12/00

CPC分类号： G06F3/0659 ,  G06F3/0611 ,  G06F3/0689 ,  G06F11/2023

摘要： A RAID system is provided which can be implemented as a hardware RAID system while avoiding certain shortcomings of previous RAID systems. The RAID system makes it possible to avoid or reduce the number of buffers or processors and can take advantage of drive logic to achieve RAID functions or enhancements. RAID functionality can be provided in a manner to accommodate one or more ATA drive interfaces. To avoid drive replacement problems, host requests for drive serial numbers are responded to with a mirror serial number. In one embodiment, the read address is used to select which drive will perform a read operation.

摘要翻译： 提供RAID系统，可以实现为硬件RAID系统，同时避免以前的RAID系统的某些缺点。 RAID系统可以避免或减少缓冲区或处理器的数量，并且可以利用驱动逻辑来实现RAID功能或增强功能。 可以以适应一个或多个ATA驱动器接口的方式提供RAID功能。 为了避免驱动器更换问题，驱动器序列号的主机请求使用镜像序列号进行响应。 在一个实施例中，读取地址用于选择哪个驱动器将执行读取操作。

公开(公告)号：US08934194B2

公开(公告)日：2015-01-13

申请号：US13282966

申请日：2011-10-27

申请人： Erhard Schreck

发明人： Erhard Schreck

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

CPC分类号： G11B25/043 ,  G11B33/148

摘要： A system and method for decreasing power consumption of hard disk drives through use of an external atmosphere of low density gas, such as helium, is described. An environment container reasonably resistant to diffusion and leakage of helium (container) is erected around an existing hard disk array or server, wherein a helium mixture is pumped into the container. The helium mixture within the container is maintained at a specified concentration via proper tubing and valves which may be manually or automatically controlled. The actual concentration need not be very pure in order to achieve reduced drag over the disks in each of the hard disk drives, thereby achieving reduced power consumption. The environment container is stand alone from the hard disk drives used such that an altered hard disk apparatus is unnecessary.

摘要翻译： 描述了通过使用低密度气体（例如氦）的外部气氛来降低硬盘驱动器的功率消耗的系统和方法。 在现有的硬盘阵列或服务器周围架设有适合抵抗氦（容器）扩散和泄漏的环境容器，其中将氦气混合物泵送到容器中。 容器内的氦气混合物通过可手动或自动控制的适当的管道和阀门保持在指定的浓度。 为了实现每个硬盘驱动器中的盘的减少的拖动，实际的浓度不必是非常纯净的，从而实现降低的功耗。 环境容器是独立于所使用的硬盘驱动器，使得不需要改变的硬盘设备。

公开(公告)号：US08416649B2

公开(公告)日：2013-04-09

申请号：US12800194

申请日：2010-05-11

申请人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

发明人： Kenichi Takano ,  Joe Smyth ,  Erhard Schreck

IPC分类号： G11B11/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0021

摘要： Improved spatial resolution during TAMR has been achieved by shaping the write pole to have a lower surface that slopes away from the surface of the recording medium, starting at, or near, the pole's leading edge. The approach may be used for simple or compound (stitched) poles.

摘要翻译： 通过使写入极通过成形使具有从磁极的前缘开始或接近磁极的边缘的表面离开记录介质的表面的下表面来实现TAMR期间的改进的空间分辨率。 该方法可用于简单或复合（缝合）极。

公开(公告)号：US08358481B2

公开(公告)日：2013-01-22

申请号：US12080278

申请日：2008-04-02

申请人： Yuchen Zhou ,  Erhard Schreck ,  David Hu

发明人： Yuchen Zhou ,  Erhard Schreck ,  David Hu

IPC分类号： G11B11/08

CPC分类号： G11B5/59633 ,  B82Y10/00 ,  G11B5/314 ,  G11B5/59638 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855 ,  G11B9/1409

摘要： The preferred embodiments of the present invention are devices and processes for producing high resolution lithography or pattern formation on the nanometer scale, using a voltage-biased probe that is slider-mounted along with, or separate from but linked to, a magnetic read head within a HDD mechanism. The probe is guided and positioned over a target layer by the motion of the read head which is, itself, guided by signals from servo tracks on a magnetic layer that activate an electromechanical servomechanism within the HDD. An electric field produced by the probe is capable of modifying the surface of the target layer over which the probe flies either directly, or by current induced or thermally induced effects. Targets such as amorphous or crystalline silicon can be hydrogen passivated and the electric field will produce oxidized or anodized lines with nanometer resolution.

摘要翻译： 本发明的优选实施例是设备和方法用于在纳米尺度上产生高分辨率平版印刷或图案形成，使用电压偏置探针，滑块安装有沿，或从分开的，但连接到，一个磁性读出头内 HDD机制。 探头通过读取头的运动被引导和定位在目标层上，该读取头本身由在激活HDD内的机电伺服机构的磁性层上的来自伺服磁道的信号引导。 由探针产生的电场能够直接改变探针在其上飞行的目标层的表面，或者通过电流感应或热诱导效应。 诸如非晶体或晶体硅的靶可以被氢钝化，并且电场将产生具有纳米分辨率的氧化或阳极化线。

公开(公告)号：US08238202B2

公开(公告)日：2012-08-07

申请号：US12928678

申请日：2010-12-16

申请人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchen Zhou ,  Kenichi Takano ,  Joe Smyth

发明人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchen Zhou ,  Kenichi Takano ,  Joe Smyth

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G02B6/125 ,  G02B6/2821 ,  G11B5/3189 ,  G11B2005/001 ,  G11B2005/0021

摘要： A waveguide structure for a TAMR head is disclosed wherein at least one detection waveguide is formed parallel to a main waveguide and located a gap distance therefrom. A light source transmits light into the main waveguide and towards an ABS/medium interface. A plasmon generator converts light from the waveguide into plasmon waves that are directed onto a magnetic medium. Back reflected light is captured by the main waveguide, partially diverted into a detection waveguide, and transmitted to a photo detector that measures light intensity (IB) which correlates closely to the plasmon wave intensity at the ABS/medium interface. A controller linked to the photo detector is employed to calculate IB as a function of ABS/medium spacing in a non-write condition and this relationship can be used to control and maintain a constant plasmon wave intensity at the ABS during a series of TAMR write processes with a plurality of media.

摘要翻译： 公开了一种用于TAMR头的波导结构，其中至少一个检测波导与主波导平行地形成并且与其间的间隙距离。 光源将光传输到主波导并朝向ABS /介质接口。 等离子体激元发生器将来自波导的光转换成被引导到磁介质上的等离子体波。 后反射光被主波导捕获，部分转移到检测波导中，并传输到光检测器，该光检测器测量与ABS /介质界面处的等离子体波强度密切相关的光强度（IB）。 在非写入条件下，使用与光电检测器相关联的控制器来计算IB作为ABS /介质间隔的函数，并且该关系可用于在一系列TAMR写入期间控制和维持ABS处的恒定等离子体波强度 具有多个媒体的过程。