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：US20080030894A1

公开(公告)日：2008-02-07

申请号：US11740747

申请日：2007-04-26

申请人： YU SUN ,  Dave McMurtrey ,  Bruce Liikanen ,  Don Brunnett ,  John VanLaanen ,  Charles Watt ,  Stanley Shepherd ,  S. Smith ,  Todd Franks ,  Lin Guo

发明人： YU SUN ,  Dave McMurtrey ,  Bruce Liikanen ,  Don Brunnett ,  John VanLaanen ,  Charles Watt ,  Stanley Shepherd ,  S. Smith ,  Todd Franks ,  Lin Guo

IPC分类号： G11B17/08

CPC分类号： G11B25/043 ,  G11B5/59627 ,  G11B5/59661 ,  G11B5/59666

摘要： In accordance with various embodiments, a rotatable member is mounted to a spindle hub so that initial servo data previously provided to the rotatable member are eccentrically offset with respect to a rotational center of the spindle hub. Compensation vales are determined to characterize said offset, after which final servo data are provided to the rotatable member in relation to the initial servo data and the determined compensation values. The final servo data are nominally concentric with the rotational center of the spindle hub.

摘要翻译： 根据各种实施例，可旋转构件安装到主轴毂，使得先前提供给可旋转构件的初始伺服数据相对于主轴毂的旋转中心偏心偏移。 确定补偿值以表征所述偏移，之后相对于初始伺服数据和确定的补偿值将最终伺服数据提供给可旋转构件。 最终伺服数据名义上与主轴毂的旋转中心同心。

公开(公告)号：US07154690B1

公开(公告)日：2006-12-26

申请号：US11110097

申请日：2005-04-19

申请人： Don Brunnett ,  John Purkett ,  Bruce Liikanen

发明人： Don Brunnett ,  John Purkett ,  Bruce Liikanen

IPC分类号： G11B19/04

CPC分类号： G11B5/5582 ,  G11B5/596 ,  G11B19/04

摘要： Dynamically detecting off-track errors in a disk drive by adjusting transducer head position control parameters in response to shock events. In an embodiment, shock events with large magnitude trigger a severe shock timer which lengthens the write fault before write operations resume. In another embodiment, a lower shock threshold is used following an initial shock event. In yet another embodiment, a lower shock threshold is used if an accumulated average position error of the transducer head is large.

摘要翻译： 通过根据冲击事件调整换能器头部位置控制参数来动态地检测磁盘驱动器中的偏离磁道错误。 在一个实施例中，具有大幅度的冲击事件触发严重的冲击计时器，其在写入操作恢复之前延长写入故障。 在另一个实施例中，在初始冲击事件之后使用较低的冲击阈值。 在另一个实施例中，如果换能器头的累积的平均位置误差较大，则使用较低的冲击阈值。

公开(公告)号：US07050260B1

公开(公告)日：2006-05-23

申请号：US10293904

申请日：2002-11-12

申请人： David M. Tung ,  Lin Guo ,  Don Brunnett

发明人： David M. Tung ,  Lin Guo ,  Don Brunnett

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59666

摘要： A method and apparatus for partial self-servo writing a disk surface in a disk drive using servo wedge propagation is provided. In one embodiment, servo information is written by a servo track writer near an outer diameter of the disk surface. The servo information is grouped into a 1× set of servo information and a 2× set of servo information. The disk drive's read head is used to read the 1× set of servo information in order to position the disk drive's write head to write servo information which is radially-aligned with the 2× set of servo information. Then, the disk drive's read head is used to read the 2× set of servo information in order to position the disk drive's write head to write servo information which is radially-aligned with the 1× set of servo information. The process is repeated on a track-by-track basis until servo information is written from the outer diameter of the disk surface to the inner diameter of the disk surface, as if it was entirely written by a servo track writer.

摘要翻译： 提供了一种使用伺服楔形传播将部分自伺服写入盘驱动器中的盘表面的方法和装置。 在一个实施例中，伺服信息由靠近盘表面的外径的伺服轨迹写入器写入。 伺服信息分为1组伺服信息和2组伺服信息。 磁盘驱动器的读取头用于读取1x组伺服信息，以便将磁盘驱动器的写入头定位成与2组伺服信息径向对齐的伺服信息。 然后，磁盘驱动器的读取头用于读取2组伺服信息，以便将磁盘驱动器的写入头定位成写入与1组伺服信息径向对齐的伺服信息。 在逐个轨道的基础上重复该过程，直到从盘表面的外径到盘表面的内径写入伺服信息为止，就好像完全由伺服记录器写入。

公开(公告)号：US06785080B1

公开(公告)日：2004-08-31

申请号：US09974454

申请日：2001-10-09

申请人： Yu Sun ,  Don Brunnett ,  XiaoPing Hu

发明人： Yu Sun ,  Don Brunnett ,  XiaoPing Hu

IPC分类号： G11B2102

CPC分类号： G11B5/59622

摘要： A method and apparatus for controlling the position of a disk drive transducer head relative to a target track are provided. An oversampled control output allows frequencies that are higher than the Nyquist frequency of the servo control system to be filtered. The system initiates a plurality of control outputs during a single sampling period, allowing the use of a single processor interrupt for each sampling period. The outputs initiated during a single sampling period may be of unequal length. In addition, the outputs may be proportioned so that the total control energy provided to the actuator is equal to the control energy that would be provided by control outputs initiated every one-half sampling period.

摘要翻译： 提供了一种用于控制盘驱动器换能器头相对于目标轨道的位置的方法和装置。 过采样控制输出允许高于伺服控制系统的奈奎斯特频率的频率进行滤波。 系统在单个采样周期内启动多个控制输出，允许在每个采样周期使用单个处理器中断。 在单个采样周期期间发起的输出可能具有不相等的长度。 此外，输出可以成比例，使得提供给致动器的总控制能量等于由每半个采样周期启动的控制输出将提供的控制能量。

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。