公开(公告)号：US06714376B1

公开(公告)日：2004-03-30

申请号：US09905564

申请日：2001-07-13

申请人： Don Brunnett ,  Lloyd Levy

发明人： Don Brunnett ,  Lloyd Levy

IPC分类号： G11B2102

CPC分类号： G11B5/59633

摘要： A method and apparatus for writing servo information to disks within a disk drive is disclosed. A servo track writer is used to write first servo information to the disks. The disk drive is then sealed, and the read/write heads within the disk drive are used to fill in second servo information. The first servo information includes digital information and A, B, C, and D servo bursts for a first number of tracks on the disks. The first servo information also includes digital information and A and B servo bursts for the remaining tracks on the disks. After the disk drive is sealed in the manufacturing process, the read/write heads within the disk drive fill in the second servo information, which includes C and D servo bursts for the remaining tracks. The read head reads the first servo information in the first number of tracks, and the position of the write head is adjusted based on the first servo information. The write head is then used to write the second servo information to a first remaining track, resulting in complete servo information for the first remaining track. The read head then reads the complete servo information in the first remaining track, and writes the second servo information for a second remaining track. This continues until the complete servo information is propagated to all of the remaining tracks.

摘要翻译： 公开了一种将伺服信息写入盘驱动器内的盘的方法和装置。 伺服记录器用于将第一伺服信息写入磁盘。 然后将磁盘驱动器密封，并且使用盘驱动器内的读/写磁头来填充第二伺服信息。 第一伺服信息包括磁盘上的第一数目磁道的数字信息和A，B，C和D伺服脉冲串。 第一伺服信息还包括用于磁盘上剩余磁道的数字信息和A和B伺服脉冲串。 在制造过程中密封磁盘驱动器之后，磁盘驱动器内的读/写磁头填充第二伺服信息，其中包括用于剩余磁道的C和D伺服脉冲串。 读取头读取第一数量的磁道中的第一伺服信息，并且基于第一伺服信息来调整写入头的位置。 然后使用写头将第二伺服信息写入第一剩余磁道，从而产生用于第一剩余磁道的完整伺服信息。 然后，读取头读取第一剩余轨道中的完整伺服信息，并写入第二剩余轨道的第二伺服信息。 这将继续，直到完整的伺服信息传播到所有剩余的轨道。

公开(公告)号：US07315431B1

公开(公告)日：2008-01-01

申请号：US11274809

申请日：2005-11-15

申请人： Stephen Perlmutter ,  Thomas Melrose ,  James Hargarten ,  Don Brunnett ,  Lloyd Levy ,  Adrián Cerdá

发明人： Stephen Perlmutter ,  Thomas Melrose ,  James Hargarten ,  Don Brunnett ,  Lloyd Levy ,  Adrián Cerdá

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A disk drive measures the radial misposition of tracks and repositions the tracks at regularly spaced intervals. Written in runout (WRO) in servo bursts is determined to calculate track spacing and squeeze among adjacent tracks. Tracks with improper spacing are repositioned by adding a squeeze correction term to the servo wedges. Thereafter, when the disk drive operates to store data, the servo bursts are used to calculate a position error signal (PES), and the squeeze correction term is combined with the PES to position the head at a proper track radius.

摘要翻译： 磁盘驱动器测量轨道的径向偏移并以规则间隔的间隔重新定位轨道。 在伺服脉冲串中写入跳动（WRO）被确定为计算轨道间距并在相邻轨道之间挤压。 通过向伺服楔加一个挤压修正项来重新定位具有不正确间距的轨迹。 此后，当磁盘驱动器操作以存储数据时，使用伺服脉冲串来计算位置误差信号（PES），并将挤压校正项与PES组合以将磁头定位在适当的轨道半径处。

公开(公告)号：US20070297088A1

公开(公告)日：2007-12-27

申请号：US11724436

申请日：2007-03-15

申请人： Yu Sun ,  Don Brunnett ,  Lloyd Levy ,  Thomas Melrose

发明人： Yu Sun ,  Don Brunnett ,  Lloyd Levy ,  Thomas Melrose

IPC分类号： G11B5/58

CPC分类号： G11B5/59627 ,  G11B5/59633

摘要： Performing embedded runout correction for a track on a rotational data storage disk includes measuring written-in runout for the track, selecting a number of revolutions in response to the measured written-in runout of the track, calculating embedded correction values for the track for the selected number of revolutions of the rotational data storage disk, and storing the embedded correction values.

摘要翻译： 对旋转数据存储盘上的轨道执行嵌入式跳动校正包括测量轨道的写入跳动，响应于轨迹的测量写入跳动选择转数，计算轨道的嵌入校正值 选择旋转数据存储盘的转数，并存储嵌入的校正值。

公开(公告)号：US07489469B2

公开(公告)日：2009-02-10

申请号：US11724436

申请日：2007-03-15

申请人： Yu Sun ,  Don Brunnett ,  Lloyd Levy ,  Thomas O. Melrose

发明人： Yu Sun ,  Don Brunnett ,  Lloyd Levy ,  Thomas O. Melrose

IPC分类号： G11B5/596

CPC分类号： G11B5/59627 ,  G11B5/59633

摘要： Performing embedded runout correction for a track on a rotational data storage disk includes measuring written-in runout for the track, selecting a number of revolutions in response to the measured written-in runout of the track, calculating embedded correction values for the track for the selected number of revolutions of the rotational data storage disk, and storing the embedded correction values.

摘要翻译： 对旋转数据存储盘上的轨道执行嵌入式跳动校正包括测量轨道的写入跳动，响应于轨迹的测量写入跳动选择转数，计算轨道的嵌入校正值 选择旋转数据存储盘的转数，并存储嵌入的校正值。

公开(公告)号：US06965491B1

公开(公告)日：2005-11-15

申请号：US10174484

申请日：2002-06-18

申请人： Stephen Perlmutter ,  Thomas Melrose ,  James Hargarten ,  Don Brunnett ,  Lloyd Levy ,  Adrián Cerdá

发明人： Stephen Perlmutter ,  Thomas Melrose ,  James Hargarten ,  Don Brunnett ,  Lloyd Levy ,  Adrián Cerdá

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A disk drive measures the radial misposition of tracks and repositions the tracks at regularly spaced intervals. Written in runout (WRO) in servo bursts is determined to calculate track spacing and squeeze among adjacent tracks. Tracks with improper spacing are repositioned by adding a squeeze correction term to the servo wedges. Thereafter, when the disk drive operates to store data, the servo bursts are used to calculate a position error signal (PES), and the squeeze correction term is combined with the PES to position the head at a proper track radius.

摘要翻译： 磁盘驱动器测量轨道的径向偏移并以规则间隔的间隔重新定位轨道。 在伺服脉冲串中写入跳动（WRO）被确定为计算轨道间距并在相邻轨道之间挤压。 通过向伺服楔加一个挤压修正项来重新定位具有不正确间距的轨迹。 此后，当磁盘驱动器操作以存储数据时，使用伺服脉冲串来计算位置误差信号（PES），并将挤压校正项与PES组合以将磁头定位在适当的轨道半径处。

公开(公告)号：US4797762A

公开(公告)日：1989-01-10

申请号：US99536

申请日：1987-09-22

申请人： Lloyd Levy ,  Dan L. Kilmer ,  Kevin P. Maher

发明人： Lloyd Levy ,  Dan L. Kilmer ,  Kevin P. Maher

IPC分类号： G11B5/48 ,  G11B19/20 ,  G11B25/04 ,  G11B33/14 ,  G11B5/105 ,  G11B17/02 ,  G11B21/02

CPC分类号： G11B19/2009 ,  G11B25/043 ,  G11B33/1433 ,  G11B5/48

摘要： A Winchester disk drive assembly includes upper and lower mounting plates and shafts for the main drive motor assembly and for the head positioner firmly connected to both mounting plates. One end of the shafts is mounted to one of the mounting plates by a shouldered washer. A shouldered washer is mounted in a counterbored hole in the adjacent mounting plate and is firmly secured to the adjacent shaft end by a steel screw, with the dimensions of the washer being selected to provide space between the enlarged head portion of the washer, and the counterbore, so that the shaft is entirely stress-free. The space between the inner surface of the enlarged portion of the T-shaped washer and the counterbored recess is then filled with epoxy which bonds the two parts together. The shouldered washer then becomes an essential part of the adjacent mounting plate, and the mounting plate may be removed and separated from the shaft by removing the steel screw. The shouldered washer and the mounting plate may be formed of aluminum or an alloy thereof, and the epoxy may be filled with finely-divided aluminum particles, so that thermal cycling has no adverse effects.

摘要翻译： 温彻斯特磁盘驱动器组件包括用于主驱动电机组件的上安装板和下安装板以及用于牢固地连接到两个安装板的头部定位器的轴。 轴的一端通过肩部垫圈安装到一个安装板上。 肩部垫圈安装在相邻安装板的沉孔中，并通过钢螺丝牢固地固定到相邻的轴端，其中垫圈的尺寸被选择为在垫圈的扩大的头部之间提供空间， 沉孔，使轴完全无压力。 然后，将T形垫圈的扩大部分的内表面与沉孔之间的空间填充到环氧树脂中，将两部分粘合在一起。 肩座垫圈成为相邻安装板的重要部分，通过拆下钢螺丝可以将安装板从轴上拆下并与轴分离。 肩部垫圈和安装板可以由铝或其合金形成，并且环氧树脂可以被细分的铝颗粒填充，使得热循环没有不利影响。

公开(公告)号：US07212369B1

公开(公告)日：2007-05-01

申请号：US10920717

申请日：2004-08-16

申请人： Lloyd Levy ,  Yu Sun ,  Pang L. Tan ,  Jingbo Yu ,  Adrian Cerda

发明人： Lloyd Levy ,  Yu Sun ,  Pang L. Tan ,  Jingbo Yu ,  Adrian Cerda

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59638 ,  G11B5/59661 ,  G11B5/59666

摘要： A method and apparatus for providing a temporary utility zone in a disk drive. A disk surface has a write head associated therewith. The write head is used to write spiral servo information and a propagation state indicator onto the disk surface. The spiral servo information and propagation state indicator are used to perform a self-servo write operation on the disk surface.

摘要翻译： 一种用于在磁盘驱动器中提供临时实用区域的方法和装置。 磁盘表面具有与其相关联的写入头。 写头用于将螺旋伺服信息和传播状态指示器写入磁盘表面。 螺旋伺服信息和传播状态指示器用于对盘表面进行自伺服写操作。

公开(公告)号：US4754353A

公开(公告)日：1988-06-28

申请号：US944466

申请日：1986-12-19

申请人： Lloyd Levy

发明人： Lloyd Levy

IPC分类号： H02K33/18 ,  F16C35/073 ,  G11B5/54 ,  G11B21/02 ,  G11B21/08 ,  B23P11/02 ,  G11B5/56 ,  G11B17/02

CPC分类号： G11B5/54 ,  F16C35/073 ,  Y10T29/49865

摘要： A digital storage system of the Winchester or hard disk drive type has a magnetic head positioner within which the arm-positioning body, including the heads, is rotatably mounted about a fixed stator assembly which includes a two-part shaft assembly comprising an aluminum cylindrical sleeve thermally shrink fitted about the central portion of an aluminum shaft having a pair of fixed ends and end portions reduced in diameter relative to the central portion by means of a pair of steel bearing assemblies attaching circumferentially about the sleeve in regions exclusive of the shrink fitted central portion of the shaft assembly. The clearance thus provided between the shaft and the mounting sleeve in the regions of the bearing assembly attachment permits a degree of decoupling of mechanical resonances potentially introduced into the head position servocontrol loop by mounting stresses acting upon the shaft.

摘要翻译： 温彻斯特或硬盘驱动器类型的数字存储系统具有磁头定位器，其中包括头部的臂定位体围绕固定定子组件可旋转地安装在该固定定子组件内，该固定定子组件包括两部分轴组件，该组件包括铝圆柱形套筒 热收缩装配在铝轴的中心部分上，该铝轴的中心部分具有一对固定端和端部，其相对于中心部分通过一对钢轴承组件直径减小，所述一对钢轴承组件围绕所述套筒围绕所述收缩配合中心 轴组件的一部分。 因此，在轴承组件附接区域中设置在轴和安装套筒之间的间隙允许通过施加作用在轴上的应力而潜在地引入到头位置伺服控制回路中的机械共振的一定程度的解耦。

公开(公告)号：US4875117A

公开(公告)日：1989-10-17

申请号：US291695

申请日：1988-12-29

申请人： Arnold Slezak ,  Lloyd Levy

发明人： Arnold Slezak ,  Lloyd Levy

IPC分类号： F16C35/073 ,  G11B5/54

CPC分类号： F16C35/073 ,  G11B5/54

摘要： The head positioner for a Winchester type hard disk drive digital storage system includes a main rotating metal body portion having outwardly extending, integral, head positioning arms. The magnetic heads for reading and writing information on the hard disks are mounted on springy members which are referred to as "load beams". In order to reduce vibration, and to increase the accuracy of positioning of the heads on the disks, the outwardly extending arms from the main metallic body of the head positioner unit extend outwardly from the central axis of rotation for a distance which is substantially greater than the additional outward extent of the spring load beams upon which the magnetic heads are supported. Preferably the outward extent of the rigid arms is in the order of twice the length of the springy load beams. In addition, the bearings for supporting the rotating head positioning assembly are preferably mounted directly to the metallic body of the head positioner assembly. The springy load beams which support the magnetic heads may be secured to the ends of the outwardly extending arms by the placement of preformed exterior filler metal buttons over the holes in the ends of said load beams which join with said integral arms' tapered ends whereby a means for generating a solid phase metallurgical bond generates a solid phase metallurgical bond between said buttons and said integral arms thereby securing said load beams and the associated magnetic heads to said integral arms.

摘要翻译： 用于温彻斯特型硬盘驱动器数字存储系统的头部定位器包括具有向外延伸的整体的头部定位臂的主旋转金属体部分。 用于读取和写入硬盘上的信息的磁头安装在被称为“负载梁”的弹性构件上。 为了减少振动，并且为了提高磁头在磁盘上的定位精度，来自磁头定位器单元的主金属体的向外延伸的臂从中心旋转轴线向外延伸一段距离，该距离基本上大于 支撑磁头的弹簧负载梁的额外向外范围。 优选地，刚性臂的向外范围是弹性负载梁的长度的两倍。 此外，用于支撑旋转头定位组件的轴承优选地直接安装在头部定位器组件的金属体上。 通过将预制的外部填充金属按钮放置在与所述整体臂的锥形端连接的所述负载梁的端部中的孔上，将支撑磁头的弹性负载梁固定到向外延伸的臂的端部，由此 用于产生固相冶金结合的装置在所述按钮和所述整体臂之间产生固相冶金结合，从而将所述负载梁和相关联的磁头固定到所述整体臂上。

公开(公告)号：US4797763A

公开(公告)日：1989-01-10

申请号：US896383

申请日：1986-08-13

申请人： Lloyd Levy ,  Michael W. Warner ,  Dan L. Kilmer

发明人： Lloyd Levy ,  Michael W. Warner ,  Dan L. Kilmer

IPC分类号： G11B5/48 ,  G11B21/16

CPC分类号： G11B5/4886 ,  G11B5/4826 ,  G11B5/4833

摘要： A digital memory system of the hard or Winchester disk type, includes a series of hard disks, and pivoted mounting arms for the magnetic heads or sliders. In order to minimize the vertical, or inter-disk space occupied by the sliders and their mounting arms when used in a rotary type of head positioner, the end of a direct, or straight, mounting arm for each slider is generally ring-shaped, or of an open rectangular configuration, with the outer transverse portion of the mounting arm extending through a slot in the surface of the slider which is not intended for engagement with or proximity to the recording disk. In addition, the slider is secured to the mounting arm by a small springy resilient sheet metal member, having a broad central area with a rounded protrusion intended to engage the outer transverse portion of the ring-shaped end of the mounting arm, and being bonded to the slider at the bottom of the slot in the slider on either side of the rounded bearing member. This small springy member has two arms extending from it which are secured to the slider mount, at the outer ends of the arms away from the broader central area of the springy member, so that the slider is free to pivot through a small angle relative to its mounting arm, thereby allowing stable operation of the air bearing action to support the slider in a predefined position and attitude relative to the disk surface. The slider mounting arm has an outer load beam section with up-turned edges to increase its stiffness or rigidity, and a transverse plate is secured to these upturned edges to increase the natural frequency of the slider mounting arm. The load beam has the additional function of establishing force equilibrium with the air bearing action to provide control of flying height above the disk surface.

摘要翻译： 硬或温彻斯特磁盘类型的数字存储系统包括一系列硬盘，以及用于磁头或滑块的枢转安装臂。 为了最小化滑动器及其安装臂在旋转式头部定位器中使用时的垂直或盘间空间，每个滑块的直接或直的安装臂的端部通常是环形的， 或开放的矩形构造，其中安装臂的外横向部分延伸穿过滑块的表面中的槽，其不用于与记录盘接合或接近记录盘。 此外，滑块通过小的弹性弹性金属板固定到安装臂上，该弹性弹性金属板具有宽的中心区域，其具有用于与安装臂的环形端部的外横向部分接合的圆形突出部， 到位于圆形轴承构件的任一侧上的滑块的槽的底部的滑动件。 这个小的弹性构件具有从其延伸的两个臂，其在臂的外端处固定到滑块安装件，远离弹性构件的较宽中心区域，使得滑块相对于弹性构件自由枢转一小角度 其安装臂，从而允许空气轴承动作的稳定操作，以将滑块支撑在相对于盘表面的预定位置和姿态。 滑块安装臂具有带有向上翻转边缘的外部负载梁部分，以增加其刚度或刚度，并且横向板固定到这些向上翻转的边缘以增加滑块安装臂的固有频率。 负载梁具有与空气轴承动作建立力平衡的附加功能，以提供对盘表面上方的飞行高度的控制。