公开(公告)号：US07023645B1

公开(公告)日：2006-04-04

申请号：US10430366

申请日：2003-05-05

申请人： Bruce Emo ,  Quinn Haddock

发明人： Bruce Emo ,  Quinn Haddock

IPC分类号： G11B21/02

CPC分类号： G11B19/04 ,  G11B5/6064 ,  G11B5/607

摘要： The present invention provides a method and apparatus for recovering data in a disk drive following a read error. At least a portion of the actuator arm tip is heated. Thermal expansion reduces the read-head-to-disk spacing, increasing the likelihood of success when a re-read of the data is attempted. In one approach, a heater is operatively coupled to the tip. In one aspect, a write head is provided with write current in order to heat the tip. Data which may be modified or overwritten when providing write current to the write head is preferably read and buffered prior to the write operation, for later re-writing to the disk.

摘要翻译： 本发明提供一种用于在读取错误之后恢复磁盘驱动器中的数据的方法和装置。 致动器臂尖端的至少一部分被加热。 热膨胀减少了读取磁头与磁盘的间距，从而增加了尝试重新读取数据时成功的可能性。 在一种方法中，加热器可操作地联接到尖端。 在一个方面，为了加热尖端，写头具有写入电流。 在向写入头提供写入电流时可以被修改或覆盖的数据优选地在写入操作之前被读取和缓冲，以便稍后重写到磁盘。

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：US07193805B1

公开(公告)日：2007-03-20

申请号：US10702927

申请日：2003-11-06

申请人： Quinn Haddock

发明人： Quinn Haddock

IPC分类号： G11B21/02 ,  G11B21/20 ,  G11B5/127 ,  B21C37/30 ,  G11B17/00

CPC分类号： G11B5/6005 ,  Y10T29/47 ,  Y10T29/49025

摘要： A slider (2′) with a reduced fly height is disclosed. The slider includes a small micropad (66) on the lower surface (22′) of the slider (2′). A sensor region (62) of a head (61) that is carried by the slider (2′) protrudes into the micropad (66). The fluid pressure acting on an air bearing surface system (26) on the lower surface (22′) of the slider (2′) is insufficient to dispose the entire lower surface (22′) of the slider (2′) in spaced relation to its corresponding disk (136) during the initial portion of the very first operation of the disk drive. The micropad (66) is thereby burnished, and continues to burnish until the air bearing surface system (26) assumes a position relative to the disk (136) that allows the fluid pressure acting on the air bearing surface system (26) to dispose the entire lower surface (22′) of the slider (2′) in spaced relation to the disk (136).

摘要翻译： 公开了具有降低的飞行高度的滑块（2'）。 滑动件在滑块（2'）的下表面（22'）上包括一个小的微突片（66）。 由滑动器（2'）承载的头部（61）的传感器区域（62）突出到微突片（66）中。 作用在滑块（2'）的下表面（22'）上的空气轴承表面系统（26）上的流体压力不足以将滑块（2'）的整个下表面（22'）设置成间隔开的关系 在盘驱动器的第一次操作的初始部分期间到其对应的盘（136）。 微塔（66）由此抛光，并继续抛光，直到空气轴承表面系统（26）相对于盘（136）呈现一个位置，允许作用在空气轴承面系统（26）上的流体压力 滑块（2'）的整个下表面（22'）与盘片136间隔开。

公开(公告)号：US07023632B1

公开(公告)日：2006-04-04

申请号：US10173561

申请日：2002-06-18

申请人： Curtis Egan ,  Quinn Haddock

发明人： Curtis Egan ,  Quinn Haddock

IPC分类号： G11B27/36

CPC分类号： G11B27/36 ,  G11B5/3136

摘要： Tools are provided to identify undesired pole tip protrusion (PTP) on a write portion of a read/write head in a hard disk. Such tools may be incorporated in the hard disk. A corrective action arrangement performs a corrective action in response to the identification of an undesired pole tip protrusion. The corrective action may comprise burnishing of pole tips of a write portion of the read/write head. An asperity read signal condition monitoring circuit monitors asperity conditions from the read signal. The asperity condition may be a high fly write condition, or it may be a thermal asperity condition. A PTP determining circuit determines when a monitored condition is indicative of an undesired PTP condition. A PTP test write cycle may be caused, during which the monitoring circuit monitors either during or right after the PTP test write cycle.

摘要翻译： 提供工具以识别硬盘中读/写头的写入部分上的不期望的极尖突起（PTP）。 这样的工具可以并入硬盘中。 响应于不期望的极尖突起的识别，校正动作装置执行校正动作。 校正动作可以包括对读/写头的写入部分的极尖进行抛光。 粗糙度读信号状态监视电路从读信号监视粗糙度条件。 粗糙度条件可能是高飞写入条件，或者它可能是热凹凸条件。 PTP确定电路确定监视条件何时指示不期望的PTP条件。 可能会导致PTP测试写入周期，在此期间监控电路将在PTP测试写入周期之前或之后监视。

公开(公告)号：US6128163A

公开(公告)日：2000-10-03

申请号：US350491

申请日：1999-07-09

申请人： Quinn Haddock ,  Patrick R. Wacker

发明人： Quinn Haddock ,  Patrick R. Wacker

IPC分类号： G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  G11B5/58 ,  G11B5/60 ,  G11B19/04 ,  G11B21/21 ,  G11B17/32

CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/3903 ,  G11B5/40 ,  G11B19/04 ,  G11B5/3967 ,  G11B5/4886 ,  G11B5/58

摘要： A method of design of a magnetic recording slider and sensor geometry is disclosed which allows a magneto-resistive recording element to achieve a significantly reduced physical and magnetic spacing with a rigid magnetic recording disk in a disk drive, without resulting in thermal transients caused by sensor/disk contacts. The method utilizes pseudo-contact slider technology with an intentionally recessed MR sensor pole tip and alumina region. The reduced spacing achieved by pseudo-contact recording is significant compared to the spacing loss incurred by the proposed precision of the MR recording element, resulting in a net reduction in head medium magnetic spacing.

摘要翻译： 公开了一种设计磁记录滑块和传感器几何形状的方法，其允许磁阻记录元件与盘驱动器中的刚性磁记录盘实现显着降低的物理和磁间隔，而不会导致由传感器引起的热瞬变 /磁盘联系人。 该方法利用伪接触滑块技术，有意嵌入的MR传感器极尖和氧化铝区域。 通过伪接触记录实现的减小的间隔与由MR记录元件提出的精度引起的间隔损耗相比是显着的，导致头中间磁间隔的净减小。

公开(公告)号：US20110096441A1

公开(公告)日：2011-04-28

申请号：US12604827

申请日：2009-10-23

申请人： Gary Joseph Kunkel ,  Quinn Haddock

发明人： Gary Joseph Kunkel ,  Quinn Haddock

IPC分类号： G11B5/48

CPC分类号： G11B5/6082 ,  G11B5/10

摘要： In a disc drive, a slider having electronic communication with the surface of a data disc, the slider having a first up-track mill transition that has a transition mill to remove oblique mill transitions so that the transition has a substantially perpendicular portion that impacts contaminant particles on or near the disc surface. In other embodiments, other edges of the slider have transition mills to remove oblique transition mills from possible impact with such particles.

摘要翻译： 在盘驱动器中，具有与数据盘的表面电子通信的滑块，该滑块具有第一上轨磨机过渡部，该过渡磨机具有用于移除斜磨机过渡部的过渡磨机，使得过渡部具有影响污染物的基本上垂直的部分 颗粒在盘表面上或附近。 在其它实施例中，滑块的其它边缘具有转台，以便将倾斜的转台从这种颗粒的可能的冲击中移除。

公开(公告)号：US07088532B1

公开(公告)日：2006-08-08

申请号：US10124615

申请日：2002-04-16

申请人： Douglas Krajnovich ,  Quinn Haddock

发明人： Douglas Krajnovich ,  Quinn Haddock

IPC分类号： G11B5/02 ,  G11B21/02

CPC分类号： G11B5/3136 ,  G11B5/3106 ,  G11B5/59633 ,  G11B5/6011

摘要： Disk drive preconditioning allows the head-disk interface to be burnished or worn so that head-disk interference is reduced or eliminated before servo track writing. The head is positioned closer to the disk than the normal fly height during a preconditioning sweep and then returns to the normal fly height during servo track writing.

摘要翻译： 磁盘驱动器预处理允许头盘接口被抛光或磨损，从而在伺服轨迹写入之前头磁盘干扰被减少或消除。 在预处理扫描期间，头部位于比正常飞行高度更靠近盘的位置，然后在伺服轨迹写入期间返回到正常飞行高度。

公开(公告)号：US5995324A

公开(公告)日：1999-11-30

申请号：US83700

申请日：1998-05-21

申请人： Quinn Haddock ,  Patrick R. Wacker

发明人： Quinn Haddock ,  Patrick R. Wacker

IPC分类号： G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  G11B5/58 ,  G11B5/60 ,  G11B19/04 ,  G11B17/00 ,  G11B21/20

CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/3903 ,  G11B5/40 ,  G11B19/04 ,  G11B5/3967 ,  G11B5/4886 ,  G11B5/58

摘要： A method of design of a magnetic recording slider and sensor geometry is disclosed which allows a magneto-resistive recording element to achieve a significantly reduced physical and magnetic spacing with a rigid magnetic recording disk in a disk drive, without resulting in thermal transients caused by sensor/disk contacts. The method utilizes pseudo-contact slider technology with an intentionally recessed MR sensor pole tip and alumina region. The reduced spacing achieved by pseudo-contact recording is significant compared to the spacing loss incurred by the proposed precision of the MR recording element, resulting in a net reduction in head medium magnetic spacing.

摘要翻译： 公开了一种设计磁记录滑块和传感器几何形状的方法，其允许磁阻记录元件与盘驱动器中的刚性磁记录盘实现显着降低的物理和磁间隔，而不会导致由传感器引起的热瞬变 /磁盘联系人。 该方法利用伪接触滑块技术，有意嵌入的MR传感器极尖和氧化铝区域。 通过伪接触记录实现的减小的间隔与由MR记录元件提出的精度引起的间隔损耗相比是显着的，导致头中间磁间隔的净减小。

公开(公告)号：US06243234B1

公开(公告)日：2001-06-05

申请号：US09606482

申请日：2000-06-29

申请人： Quinn Haddock ,  Patrick R. Wacker

发明人： Quinn Haddock ,  Patrick R. Wacker

IPC分类号： G11B2121

CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/10 ,  G11B5/105 ,  G11B5/3903 ,  G11B5/3967 ,  G11B5/40 ,  G11B5/4886 ,  G11B5/58 ,  G11B19/04

摘要： A method of design of a magnetic recording slider and sensor geometry is disclosed which allows a magneto-resistive recording element to achieve a significantly reduced physical and magnetic spacing with a rigid magnetic recording disk in a disk drive, without resulting in thermal transients caused by sensor/disk contacts. The method utilizes pseudo-contact slider technology with an intentionally recessed MR sensor pole tip and alumina region. The reduced spacing achieved by pseudo-contact recording is significant compared to the spacing loss incurred by the proposed precision of the MR recoding element, resulting in a net reduction in head medium magnetic spacing.

摘要翻译： 公开了一种设计磁记录滑块和传感器几何形状的方法，其允许磁阻记录元件与盘驱动器中的刚性磁记录盘实现显着降低的物理和磁间隔，而不会导致由传感器引起的热瞬变 /磁盘联系人。 该方法利用伪接触滑块技术，有意嵌入的MR传感器极尖和氧化铝区域。 通过伪接触记录实现的减小的间隔与由MR记录元件提出的精度引起的间隔损耗相比是显着的，导致磁头中间磁间隔的净减少。

公开(公告)号：US06226151B1

公开(公告)日：2001-05-01

申请号：US09302060

申请日：1999-04-29

申请人： Quinn Haddock

发明人： Quinn Haddock

IPC分类号： G11B560

CPC分类号： G11B5/6005 ,  G11B21/22

摘要： A magnetic recording contact slider is disclosed which allows a magneto-resistive recording element to achieve a significantly reduced physical and magnetic spacing with a rigid magnetic recording disk in a disk drive, without resulting in thermal transients caused by sensor/disk contacts. The slider utilizes a high air-bearing surface curvature to reduce the static friction between the slider and the recording disk.

摘要翻译： 公开了一种磁记录接触滑块，其允许磁阻记录元件与磁盘驱动器中的刚性磁记录盘实现显着降低的物理和磁间隔，而不会导致由传感器/磁盘接触引起的热瞬变。 滑块利用高空气轴承表面曲率来减小滑块和记录盘之间的静摩擦力。