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    Apparatus and method for damping slider-gimbal coupled vibration of a hard disk drive
    1.
    发明授权
    Apparatus and method for damping slider-gimbal coupled vibration of a hard disk drive 有权
    用于阻止硬盘驱动器的滑块 - 万向节耦合振动的装置和方法

    公开(公告)号：US07480120B2

    公开(公告)日：2009-01-20

    申请号：US11104356

    申请日：2005-04-12

    申请人： Fu-Ying Huang ,  Remmelt Pit ,  Vedantham Raman ,  Qinghua Zeng

    发明人： Fu-Ying Huang ,  Remmelt Pit ,  Vedantham Raman ,  Qinghua Zeng

    IPC分类号： G11B5/48

    CPC分类号： G11B5/48 ,  G11B5/4826 ,  G11B5/4833

    摘要： An apparatus and method for damping slider-gimbal coupled vibration of a hard disk drive is disclosed. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled with the suspension at a gimbal structure. In addition, a damping zone is provided at a stress point on the gimbal structure, the damping zone having a damping material thereon, wherein the damping material reduces vibration of the slider and the gimbal structure.

    摘要翻译： 公开了一种用于阻止硬盘驱动器的滑块 - 万向节耦合振动的装置和方法。 该方法提供了一个到达磁盘的悬架。 还提供了在后缘（TE）部分上具有读/写头元件的滑块，滑块以悬架结构与悬架联接。 此外，在万向节结构上的应力点处设置阻尼区，阻尼区在其上具有阻尼材料，其中阻尼材料减少滑块和万向节结构的振动。

    Method and apparatus for modifying the air bearing force of the trailing edge of a slider to increase head to disk interface reliability for contact recording systems
    5.
    发明授权
    Method and apparatus for modifying the air bearing force of the trailing edge of a slider to increase head to disk interface reliability for contact recording systems 有权
    用于改变滑块后缘的空气支承力以增加接触记录系统的磁头与磁盘接口可靠性的方法和装置

    公开(公告)号：US08014105B2

    公开(公告)日：2011-09-06

    申请号：US11077879

    申请日：2005-03-11

    申请人： Walton Fong ,  Donald R. Gillis ,  Remmelt Pit ,  Mike Suk

    发明人： Walton Fong ,  Donald R. Gillis ,  Remmelt Pit ,  Mike Suk

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/40 ,  G11B5/6082

    摘要： An apparatus and method for modifying the air bearing force of the trailing edge of a slider to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled with the suspension. In addition, a shaped TE which minimizes the air bearing force at the TE portion of the slider, to minimize the normal load and friction during contact to reduce slider bounce.

    摘要翻译： 一种用于改变滑块的后缘的空气支承力以增加接触记录系统的磁头与磁盘接口可靠性的装置和方法。 该方法提供了一个到达磁盘的悬架。 还提供了在后缘（TE）部分上具有读/写头元件的滑块，该滑块与该悬架联接。 另外，成形的TE使滑块的TE部分处的空气轴承力最小化，以使接触期间的正常负载和摩擦力最小化，以减少滑块反弹。

    System and method for adjusting fly heights in a hard disk drive having multiple heads
    6.
    发明授权
    System and method for adjusting fly heights in a hard disk drive having multiple heads 失效
    用于调整具有多个磁头的硬盘驱动器中的飞行高度的系统和方法

    公开(公告)号：US07268966B2

    公开(公告)日：2007-09-11

    申请号：US10957012

    申请日：2004-09-30

    申请人： Remmelt Pit ,  C. Singh Bhatia

    发明人： Remmelt Pit ,  C. Singh Bhatia

    IPC分类号： G11B21/02 ,  G11B27/36 ,  G11B33/14

    CPC分类号： G11B5/6005 ,  G11B5/5534 ,  G11B5/6029 ,  G11B5/6064 ,  G11B5/607 ,  Y10T29/49036

    摘要： A method for adjusting fly heights for a plurality of heads of a hard disk drive is disclosed. The method includes measuring respective magnetic and mechanical performance for the plurality of heads and varying the density of an environment within the hard disk drive. This variation of the environment is such that the respective fly heights of the plurality of heads are adjusted to achieve a preferred distribution with respect to an ideal fly height.

    摘要翻译： 公开了一种用于调整硬盘驱动器的多个磁头的飞行高度的方法。 该方法包括测量多个磁头的各自的磁性和机械性能并改变硬盘驱动器内的环境的密度。 环境的这种变化使得多个头部的相应飞行高度被调节以实现相对于理想飞行高度的优选分布。

    Measurement of slider clearance by inducing collision of the slider with disk surface
    7.
    发明申请
    Measurement of slider clearance by inducing collision of the slider with disk surface 有权
    通过引导滑块与磁盘表面的碰撞来测量滑块间隙

    公开(公告)号：US20060002001A1

    公开(公告)日：2006-01-05

    申请号：US10882882

    申请日：2004-06-30

    申请人： Walton Fong ,  Donald Gillis ,  Bernhard Knigge ,  Remmelt Pit ,  Mike Suk

    发明人： Walton Fong ,  Donald Gillis ,  Bernhard Knigge ,  Remmelt Pit ,  Mike Suk

    IPC分类号： G11B21/02 ,  G11B27/36

    CPC分类号： G11B5/455 ,  G11B27/36 ,  G11B2220/20

    摘要： A method for measuring the clearance of a slider over a rotating disk by inducing a collision between the slider and the disk is described. After the normal flying height of the slider is established, the slider is driven into a collision with the rotating disk surface by applying a DC or AC voltage between the slider and the disk. The clearance data can be extracted from the induced collision by measuring a parameter, such as the change in the amplitude of the readback signal from the magnetic sensor, which is related to fly-height at the normal fly-height and at the disk surface. The two data points can then be used to derive the clearance. One embodiment uses a single beam interferometer to derive the vibrational displacement of the collision event.

    摘要翻译： 描述了通过引起滑块和盘之间的碰撞来测量滑块在旋转盘上的间隙的方法。 在滑块的正常飞行高度建立之后，通过在滑块和盘之间施加直流或交流电压，滑块被驱动与旋转盘表面碰撞。 可以通过测量与磁性传感器的回读信号的振幅的变化相关的参数（例如与正常飞行高度和盘表面处的飞行高度相关的参数）来从感应的碰撞中提取间隙数据。 然后可以使用两个数据点来导出间隙。 一个实施例使用单光束干涉仪来导出碰撞事件的振动位移。

    Method and apparatus for dynamically establishing roll static attitude in hard disk drive
    9.
    发明申请
    Method and apparatus for dynamically establishing roll static attitude in hard disk drive 失效
    在硬盘驱动器中动态建立卷静态的方法和装置

    公开(公告)号：US20050068655A1

    公开(公告)日：2005-03-31

    申请号：US10670948

    申请日：2003-09-25

    申请人： Remmelt Pit ,  Mike Suk

    发明人： Remmelt Pit ,  Mike Suk

    IPC分类号： G11B5/54 ,  G11B19/02 ,  G11B21/02 ,  G11B21/12 ,  G11B21/22

    CPC分类号： G11B5/54 ,  G11B21/12 ,  G11B21/22

    摘要： A hard disk drive establishes a roll static attitude (RSA) of a slider during operation to be zero during normal operation and to be non-zero during load/unload from a ramp. Specifically, a RSA bias mechanism such as a piezoelectric layer can be coupled to the slider suspension to bend the flexure of the suspension during load/unload so that the slider inner edge is higher than the outer edge. Consequently, any slider-disk contact that occurs during load/unload will be at the outer edge of the slider, where data is not expected to be on the disk.

    摘要翻译： 在正常操作期间，硬盘驱动器在操作期间建立滑块的滚动静止姿态（RSA）为零，并且在从斜坡加载/卸载期间将非零。 具体地，诸如压电层的RSA偏置机构可以耦合到滑块悬架，以在加载/卸载期间弯曲悬架的挠曲，使得滑块内边缘高于外边缘。 因此，在加载/卸载期间发生的任何滑块 - 磁盘触点将位于滑块的外边缘，其中数据不会在磁盘上。

    In-situ contact potential measurement in hard-disk drives
    10.
    发明授权
    In-situ contact potential measurement in hard-disk drives 有权
    硬盘驱动器中的原位接触电位测量

    公开(公告)号：US08630057B2

    公开(公告)日：2014-01-14

    申请号：US13495513

    申请日：2012-06-13

    申请人： Aravind N. Murthy ,  Remmelt Pit ,  Karl Arthur Flechsig

    发明人： Aravind N. Murthy ,  Remmelt Pit ,  Karl Arthur Flechsig

    IPC分类号： G11B21/02 ,  G11B27/36

    CPC分类号： G11B5/607 ,  G11B5/6076

    摘要： Approaches are provided for a hard-disk drive (HDD) and a method for measuring the contact potential between head and disk interfaces within a hard-disk drive. In one example, a voltage bias is applied to a head slider at discrete increments, and the touchdown power is determined at each increment. The voltage bias at which the TDP maximizes equals the inverse polarity of the inherent contact potential between the head slider and disk, and this value may be used to apply a voltage that neutralizes the contact potential.

    摘要翻译： 为硬盘驱动器（HDD）提供了方法，以及用于测量硬盘驱动器内磁头和磁盘接口之间的接触电位的方法。 在一个示例中，电压偏置以离散增量施加到磁头滑块，并且在每个增量处确定触地功率。 TDP最大化的电压偏置等于磁头滑块和磁盘之间的固有接触电位的反极性，并且该值可用于施加中和接触电位的电压。