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1.发明授权Method and system for detecting a change in a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk 失效用于检测耦合到磁盘的磁盘或主轴的旋转速度的变化的方法和系统公开(公告)号：US07605996B2
公开(公告)日：2009-10-20
申请号：US11965980
申请日：2007-12-28
申请人： Peter Michael Baumgart , Charles Raymond Davis , Gary Allan Herbst , Bernhard E. Knigge , Charles Mathew Mate , Bruce Alexander Wilson
发明人： Peter Michael Baumgart , Charles Raymond Davis , Gary Allan Herbst , Bernhard E. Knigge , Charles Mathew Mate , Bruce Alexander Wilson
CPC分类号： G11B19/28 , G11B5/6076
摘要： A method according to one embodiment comprises detecting a change in a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk, the change being caused by head-disk contact. A method for detecting head-disk contact according to another embodiment comprises measuring a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk; detecting a change in the rotational velocity, the change being caused by head-disk contact; and correlating the change in rotational velocity with the head-disk contact.
摘要翻译： 根据一个实施例的方法包括检测耦合到磁盘的磁盘或主轴的旋转速度的变化，该变化是由磁头盘接触引起的。 根据另一实施例的用于检测磁头盘接触的方法包括测量耦合到磁盘的磁盘或主轴的旋转速度; 检测旋转速度的变化，改变是由磁头盘接触引起的; 并将旋转速度的变化与头盘接触相关联。
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2.发明申请METHOD AND SYSTEM FOR DETECTING A CHANGE IN A ROTATIONAL VELOCITY OF A MAGNETIC DISK OR A SPINDLE COUPLED TO THE MAGNETIC DISK 失效用于检测磁性盘旋转速度或与磁盘耦合的主轴的变化的方法和系统公开(公告)号：US20090168221A1
公开(公告)日：2009-07-02
申请号：US11965980
申请日：2007-12-28
申请人： Peter Michael Baumgart , Charles Raymond Davis , Gary Allan Herbst , Bernhard E. Knigge , Charles Mathew Mate , Bruce Alexander Wilson
发明人： Peter Michael Baumgart , Charles Raymond Davis , Gary Allan Herbst , Bernhard E. Knigge , Charles Mathew Mate , Bruce Alexander Wilson
IPC分类号： G11B15/46
CPC分类号： G11B19/28 , G11B5/6076
摘要： A method according to one embodiment comprises detecting a change in a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk, the change being caused by head-disk contact. A method for detecting head-disk contact according to another embodiment comprises measuring a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk; detecting a change in the rotational velocity, the change being caused by head-disk contact; and correlating the change in rotational velocity with the head-disk contact.
摘要翻译： 根据一个实施例的方法包括检测耦合到磁盘的磁盘或主轴的旋转速度的变化，该变化是由磁头盘接触引起的。 根据另一实施例的用于检测磁头盘接触的方法包括测量耦合到磁盘的磁盘或主轴的旋转速度; 检测旋转速度的变化，改变是由磁头盘接触引起的; 并将旋转速度的变化与头盘接触相关联。
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3.发明授权公开(公告)号：US07321476B2
公开(公告)日：2008-01-22
申请号：US11192860
申请日：2005-07-29
CPC分类号： G11B5/6005 , G11B5/3106 , G11B5/40 , G11B5/6035
摘要： A method and system for determining contact potential voltages between a slider body and a hard disk of a hard disk drive. In embodiments of the present invention, at least one continuous negative direct current (DC) voltage is applied between a slider body and a hard disk of a hard disk drive. Then, at least one continuous positive direct current (DC) voltage is applied between the slider body and the hard disk. A contact potential voltage between the slider body and the hard disk is then determined in response to the applying of the direct current voltages.
摘要翻译： 一种用于确定滑块体和硬盘驱动器的硬盘之间的接触电位的方法和系统。 在本发明的实施例中，在滑块体和硬盘驱动器的硬盘之间施加至少一个连续的负直流（DC）电压。 然后，在滑块体和硬盘之间施加至少一个连续的正直流（DC）电压。 然后响应于施加直流电压来确定滑块体和硬盘之间的接触电位电压。
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4.发明授权Simultaneous measurement of contact potential and slider body clearance in a magnetic disk drive 有权同时测量磁盘驱动器中的接触电位和滑块体间隙公开(公告)号：US07310197B2
公开(公告)日：2007-12-18
申请号：US11152912
申请日：2005-06-15
CPC分类号： G11B5/6017
摘要： A method for simultaneously measuring contact potential and slider body clearance in a hard disk drive. In embodiments of the present invention, a plurality of direct current (DC) pulses are applied between a slider body and a hard disk of a magnetic disk drive. The contact potential voltage between the slider body and the hard disk is determined in response to applying the plurality of direct current (DC) pulses. The voltage of the plurality of direct current (DC) pulses is increased until a contact between the slider body and the hard disk is detected.
摘要翻译： 用于同时测量硬盘驱动器中的接触电位和滑块体间隙的方法。 在本发明的实施例中，多个直流（DC）脉冲被施加在滑块体和磁盘驱动器的硬盘之间。 响应于施加多个直流（DC）脉冲来确定滑块体和硬盘之间的接触电位电压。 多个直流（DC）脉冲的电压增加，直到检测到滑块体和硬盘之间的接触。
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5.发明授权公开(公告)号：US07310198B2
公开(公告)日：2007-12-18
申请号：US11153213
申请日：2005-06-15
摘要： A method and system for measuring slider body clearance in a hard disk drive using positive and negative electrical pulses. In one embodiment, at least one positive direct current (DC) pulse is applied between a slider body and a hard disk of the hard disk drive. Furthermore, at least one negative direct current (DC) pulse is applied between the slider body and the hard disk. A contact potential voltage between said slider body and said hard disk is then determined in response to applying the at least one positive direct current (DC) pulse and the at least one negative direct current (DC) pulse.
摘要翻译： 一种用于使用正和负电脉冲来测量硬盘驱动器中的滑块体间隙的方法和系统。 在一个实施例中，在滑块体和硬盘驱动器的硬盘之间施加至少一个正直流（DC）脉冲。 此外，在滑块体和硬盘之间施加至少一个负直流（DC）脉冲。 然后响应于施加至少一个正直流（DC）脉冲和至少一个负直流（DC）脉冲来确定所述滑块体和所述硬盘之间的接触电位电压。
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6.发明授权Disk drive head with radially spaced read and write elements on respective protrusion pads 失效磁盘驱动器头，在相应的突出焊盘上具有径向间隔的读取和写入元件公开(公告)号：US06967818B2
公开(公告)日：2005-11-22
申请号：US10620634
申请日：2003-07-16
CPC分类号： G11B5/3906 , G11B25/043 , G11B33/1446
摘要： The head of a disk drive has write elements disposed on one protrusion pad that wears away during initial operation to permit reduced tolerances and, thus, reduced spacing between the disk and head, with the read element being disposed on a separate protrusion pad and spaced from the write element pad in the radial dimension. This prevents read element recession during cooling in the absence of write current that could otherwise occur if the read element were located on the same pad as the write head.
摘要翻译： 磁盘驱动器的磁头具有设置在一个突出焊盘上的写入元件，其在初始操作期间磨损，以允许减小公差并因此减小磁盘与磁头之间的间隔，读取元件设置在单独的突出焊盘上并与之隔开 写元件垫在径向尺寸上。 这可以防止在没有写入电流的情况下的冷却期间的读取元件衰退，否则如果读取元件位于与写入头相同的焊盘上则可能会发生。
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7.发明授权Disk drive with localized clearance and contact potential measurement capability 有权具有局部清除和接触电位测量功能的磁盘驱动器公开(公告)号：US07286314B2
公开(公告)日：2007-10-23
申请号：US11153186
申请日：2005-06-15
摘要： A method and system for determining localized contact potential voltages and localized clearance data between a slider body and a hard disk of a hard disk drive. In embodiments of the present invention, a plurality of direct current (DC) pulses are applied between said slider body and a discreet location of the hard disk. In embodiments of the present invention, the discreet location of the hard disk comprises a portion of a data track of the hard disk. In embodiments of the present invention, a variation in the clearance of the slider body is determined when a given voltage is applied. Furthermore, a first set of DC pulses has a positive/negative bias while a second set of DC pulses has a negative/positive bias. The voltage of the sets of DC pulses is increased until a contact between the slider body and the hard disk is detected.
摘要翻译： 用于确定滑块体和硬盘驱动器的硬盘之间的局部接触电位电压和局部间隙数据的方法和系统。 在本发明的实施例中，多个直流（DC）脉冲被施加在所述滑块体和硬盘的谨慎位置之间。 在本发明的实施例中，硬盘的谨慎位置包括硬盘的数据轨道的一部分。 在本发明的实施例中，当施加给定电压时确定滑块体的间隙的变化。 此外，第一组DC脉冲具有正/负偏压，而第二组DC脉冲具有负/正偏压。 DC脉冲组的电压增加，直到检测到滑块体和硬盘之间的接触。
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公开(公告)号：US6059555A
公开(公告)日：2000-05-09
申请号：US707383
申请日：1996-09-04
申请人： Michael Barenboim , Peter Michael Baumgart , Peter B. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Doug John Krajnovich , Iraj Kahkesh Pour , Hong S. Seing , Andrew Ching Tam
发明人： Michael Barenboim , Peter Michael Baumgart , Peter B. Chrusch , Benny Michael Harper , Benjamin Karni , Pieter J. M. Kerstens , Doug John Krajnovich , Iraj Kahkesh Pour , Hong S. Seing , Andrew Ching Tam
CPC分类号： G11B5/8404 , Y10S425/81
摘要： A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately equal power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power control optics block includes means for attenuating and measuring each of the two beams. A shuttling mirror directs these two beams alternately at a disk within each of the two disk handling stations.
摘要翻译： 例如，使用磁盘纹理工具来在硬盘的两侧的环形部分中提供纹理斑点。 通过两个磁盘处理站将磁盘移入和移出磁带盒中的纹理过程。 光学系统包括指向分束器的激光器，以将激光束分成具有大致相等功率的两个光束，所述光束具有大致相等的功率，这些光束沿着平行路径通过功率控制光学块，以同时暴露于待纹理的光盘的相对侧。 功率控制光学块包括用于衰减和测量两个光束中的每一个的装置。 穿梭镜将两个光束交替地引导到两个光盘处理站的每一个中的盘上。
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9.发明授权Procedure employing a diode-pumped laser for controllably texturing a disk surface 失效采用二极管泵浦激光器可控地纹理化磁盘表面的程序
公开(公告)号：US6013336A
公开(公告)日：2000-01-11
申请号：US4694
申请日：1998-01-08
CPC分类号： B23K26/0078 , G11B5/62 , G11B5/64 , G11B5/82 , G11B5/84 , G11B5/8404 , G11B5/8408 , G11B5/6011
摘要： A process for creating a "distant bump array" surface texture in a magnetic recording disk for reducing stiction and the disk so textured. The texturing process uses a tightly focused diode-pumped Nd:YLF or Nd:YVO.sub.4 or other solid-state laser that is pulsed with a 0.3-90 nanosecond pulse train to produce a plurality of distantly-spaced bumps in the disk surface. The bump creation process is highly controllable, permitting repeated creation of a preselected bump profile such as a smooth dimple or one with a central protrusion useful for low stiction without close spacing or elevated "roughness". Some bump profiles permit texturing of the data-storage region of the disk surface for low stiction without materially affecting magnetic data storage density.
摘要翻译： 用于在磁记录盘中创建“远距离的凸块阵列”表面纹理以减少静摩擦和磁盘的纹理的过程。 纹理化处理使用紧密聚焦的二极管泵浦Nd：YLF或Nd：YVO4或其他固体激光器，其用0.3-90纳秒脉冲串脉冲，以在盘表面中产生多个远距离间隔的凸块。 凸起创建过程是高度可控的，允许重复地产生预选的凸起轮廓，例如平滑凹坑或具有用于低静摩擦的中心突起的凸起轮廓，而没有紧密间隔或升高的“粗糙度”。 一些凸块轮廓允许对磁盘表面的数据存储区域进行纹理化以实现低静态，而不会对磁数据存储密度造成重大影响。
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公开(公告)号：US07963022B2
公开(公告)日：2011-06-21
申请号：US11778688
申请日：2007-07-17
CPC分类号： F16B1/0014 , F16B4/00 , Y10T29/49025 , Y10T29/49027 , Y10T29/4987 , Y10T29/49874 , Y10T403/7061
摘要： A method of swaging a head gimbal assembly (HGA) to an actuator arm comprises positioning a tubular element on the HGA adjacent a hole in the actuator arm; restraining the subassembly; providing a rod formed from a shape memory alloy (SMA), the SMA having a martensitic phase at a low temperature and an austenitic phase above a phase transition temperature that is higher than the low temperature, the rod having an initial diameter that is smaller than diameters of the tubular element and the hole; extending the rod through the tubular element and hole; heating the rod above the phase transition temperature such that the rod expands to a second diameter that is greater than the initial diameter to plastically deform the HGA and swage together the HGA and actuator arm to form an assembly; cooling the rod and removing the rod from the assembly such that the rod returns to the initial diameter.
摘要翻译： 将头部万向架组件（HGA）型锻到致动器臂的方法包括将管状元件定位在邻近致动器臂上的孔的HGA上; 限制组件; 提供由形状记忆合金（SMA）形成的棒，所述SMA在低温下具有马氏体相，并且高于低于低温的相变温度的奥氏体相，所述杆的初始直径小于 管状元件和孔的直径; 将杆延伸通过管状元件和孔; 将棒加热到相变温度以上，使得杆膨胀到比初始直径大的第二直径，以使HGA塑性变形并将HGA和致动器臂一起挤压以形成组件; 冷却杆并从组件中取出杆，使得杆返回初始直径。
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