MAGNETIC DISK DEVICE AND HEAD POSITION CONTROL METHOD
    1.
    发明申请
    MAGNETIC DISK DEVICE AND HEAD POSITION CONTROL METHOD 有权
    磁盘设备和头位置控制方法

    公开(公告)号:US20110310506A1

    公开(公告)日:2011-12-22

    申请号:US13028775

    申请日:2011-02-16

    IPC分类号: G11B5/596

    CPC分类号: G11B5/5582

    摘要: According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head, a position error signal output module, a vibration pattern detector, an adder, and a head positioning controller. The magnetic head moves over the magnetic disk. The position error signal output module outputs a position error signal based on a difference between a head position of the magnetic head over the magnetic disk and a target position on the magnetic disk. The vibration pattern detector detects a vibration pattern of the magnetic head caused by vibration. The adder adds the position error signal to an offset signal indicating amplitude of the vibration pattern. The head positioning controller moves the head position to the target position based on a result of addition by the adder.

    摘要翻译: 根据一个实施例,磁盘装置包括磁盘,磁头,位置误差信号输出模块,振动模式检测器,加法器和磁头定位控制器。 磁头在磁盘上移动。 位置误差信号输出模块基于磁头的头部位置与磁盘上的目标位置之间的差异输出位置误差信号。 振动模式检测器检测由振动引起的磁头的振动模式。 加法器将位置误差信号加到表示振动模式振幅的偏移信号上。 头部定位控制器基于加法器的相加结果将头部位置移动到目标位置。

    Magnetic disk device and head position control method
    2.
    发明授权
    Magnetic disk device and head position control method 有权
    磁盘装置和磁头位置控制方法

    公开(公告)号:US08315008B2

    公开(公告)日:2012-11-20

    申请号:US13028775

    申请日:2011-02-16

    IPC分类号: G11B5/596 G11B19/04

    CPC分类号: G11B5/5582

    摘要: According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head, a position error signal output module, a vibration pattern detector, an adder, and a head positioning controller. The magnetic head moves over the magnetic disk. The position error signal output module outputs a position error signal based on a difference between a head position of the magnetic head over the magnetic disk and a target position on the magnetic disk. The vibration pattern detector detects a vibration pattern of the magnetic head caused by vibration. The adder adds the position error signal to an offset signal indicating amplitude of the vibration pattern. The head positioning controller moves the head position to the target position based on a result of addition by the adder.

    摘要翻译: 根据一个实施例,磁盘装置包括磁盘,磁头,位置误差信号输出模块,振动模式检测器,加法器和磁头定位控制器。 磁头在磁盘上移动。 位置误差信号输出模块基于磁头的头部位置与磁盘上的目标位置之间的差异输出位置误差信号。 振动模式检测器检测由振动引起的磁头的振动模式。 加法器将位置误差信号加到表示振动模式振幅的偏移信号上。 头部定位控制器基于加法器的相加结果将头部位置移动到目标位置。

    Method and apparatus for servo writing with servo pattern examination in a disk drive
    3.
    发明申请
    Method and apparatus for servo writing with servo pattern examination in a disk drive 审中-公开
    用于在磁盘驱动器中进行伺服模式检测的伺服写入的方法和装置

    公开(公告)号:US20060109583A1

    公开(公告)日:2006-05-25

    申请号:US11253643

    申请日:2005-10-20

    IPC分类号: G11B21/02 G11B27/36

    CPC分类号: G11B5/59633 G11B5/59638

    摘要: There is disclosed a servo information writing apparatus comprising a disk drive and an examination unit. The examination unit executes examination to select an adequate servo pattern as servo information from a plurality of types of servo patterns recorded beforehand in a disk medium incorporated in the disk drive. The selection unit executes an examination to select the adequate servo pattern by use of a control and signal processing system incorporated in the disk drive.

    摘要翻译: 公开了一种包括磁盘驱动器和检查单元的伺服信息写入装置。 检查单元执行检查以从预先记录在包含在盘驱动器中的盘介质中的多种类型的伺服模式中选择足够的伺服模式作为伺服信息。 选择单元通过使用包含在盘驱动器中的控制和信号处理系统执行检查以选择适当的伺服模式。

    Method and apparatus for servo information writing in a disk drive
    4.
    发明授权
    Method and apparatus for servo information writing in a disk drive 失效
    伺服信息写入磁盘驱动器的方法和装置

    公开(公告)号:US07221533B2

    公开(公告)日:2007-05-22

    申请号:US11262716

    申请日:2005-11-01

    IPC分类号: G11B21/02 G11B5/596

    CPC分类号: G11B5/59627 G11B5/59633

    摘要: A method of writing servo information for use in head positioning control on a disk medium incorporated in a disk drive, including executing the head positioning control based on original servo information recorded on the disk medium, producing positioning correction information to correct a positioning error, and recording the positioning correction information in a correction information recording buffer.

    摘要翻译: 一种写入用于磁盘定位控制的伺服信息的方法,包括:根据记录在磁盘介质上的原始伺服信息执行磁头定位控制,产生定位校正信息以校正定位误差;以及 在校正信息记录缓冲器中记录定位校正信息。

    Method and apparatus for writing servo information
    7.
    发明申请
    Method and apparatus for writing servo information 审中-公开
    用于写入伺服信息的方法和装置

    公开(公告)号:US20070047132A1

    公开(公告)日:2007-03-01

    申请号:US11447981

    申请日:2006-06-07

    IPC分类号: G11B5/58

    CPC分类号: G11B5/59655

    摘要: According to one embodiment, a servo write method for writing servo information to a disk medium used in a disk drive is disclosed. In the procedure of the servo write method, first servo information is spirally written to a disk medium in a clean room before the disk medium is incorporated into the disk drive, then, the disk medium is incorporated into the disk drive, and second servo information is concentrically written to the disk medium already incorporated in the disk drive.

    摘要翻译: 根据一个实施例,公开了一种用于将伺服信息写入到用于磁盘驱动器中的磁盘介质的伺服写入方法。 在伺服写入方法的过程中,在将磁盘介质并入磁盘驱动器之前,将第一伺服信息螺旋地写入清洁室中的磁盘介质,然后将磁盘介质并入磁盘驱动器中,并且将第二伺服信息 同心地写入已经并入磁盘驱动器的磁盘介质。