Disk drive apparatus and method for writing and/or reading user data thereof
    1.
    发明申请
    Disk drive apparatus and method for writing and/or reading user data thereof 审中-公开
    用于写入和/或读取其用户数据的磁盘驱动装置和方法

    公开(公告)号:US20070247736A1

    公开(公告)日:2007-10-25

    申请号:US11788524

    申请日:2007-04-19

    IPC分类号: G11B5/09

    CPC分类号: G11B5/59627 G11B5/59688

    摘要: Embodiments in accordance with the present invention suppress an adverse influence on a pattern of a magnetic disk due to its rotational jitter and write the pattern at more accurate timing. In accordance with one embodiment, a hard disk controller/microprocessing unit (HDC/MPU) controls a clock frequency of a data clock generation circuit so that a rotational jitter of the magnetic disk be compensated when writing and reading user data. The HDC/MPU expects a detection timing of next adjacent servo sector using an error between an actual detection timing and an expected detection timing of a servo sector which has already been detected. The HDC/MPU controls the clock frequency using the expected timing and writes and reads user data between current servo sector and next adjacent servo sector according to the clock signal.

    摘要翻译: 根据本发明的实施例抑制由于其旋转抖动对磁盘的图案的不利影响并且以更准确的定时写入图案。 根据一个实施例,硬盘控制器/微处理单元(HDC / MPU)控制数据时钟产生电路的时钟频率,从而在写入和读取用户数据时补偿磁盘的旋转抖动。 HDC / MPU期望使用已经检测到的伺服扇区的实际检测定时和预期检测定时之间的误差来检测下一相邻伺服扇区的检测定时。 HDC / MPU使用预期定时控制时钟频率,并根据时钟信号在当前伺服扇区和下一个相邻伺服扇区之间写入和读取用户数据。

    Method and data storage device for writing patterns onto recording disk
    2.
    发明申请
    Method and data storage device for writing patterns onto recording disk 失效
    用于将图案写入记录盘的方法和数据存储装置

    公开(公告)号:US20060262449A1

    公开(公告)日:2006-11-23

    申请号:US11437552

    申请日:2006-05-19

    IPC分类号: G11B19/02

    CPC分类号: G11B5/59633

    摘要: Embodiments of the invention efficiently conduct servo corrections for preventing error propagation during SSW. In an example of the present invention, a servo position signal generator generates a servo position signal indicative of the current position of a read element on the basis of a servo signal from a servo channel. A target position generator generates correction data from multiply and add operations between the PES generated when the track that the read element is following is written, and pre-registered correction coefficients. A correction target position is generated from the correction data and a reference target position, and then output to a position error calculator. The position error calculator generates a position error signal (PES) from the servo position signal and the target position signal, and outputs PES to a servo controller. The servo controller generates a control signal (DACOUT) in accordance with PES, and a motor driver unit supplies an electric current of a required value to a VCM in accordance with the control signal.

    摘要翻译: 本发明的实施例有效地进行伺服校正,以防止SSW期间的错误传播。 在本发明的一个例子中,伺服位置信号发生器基于来自伺服通道的伺服信号产生指示读取元件的当前位置的伺服位置信号。 目标位置发生器在读取元件所追踪的轨迹被写入时产生的PES和预先登记的校正系数之间乘法生成校正数据并且在其之间添加操作。 从校正数据和参考目标位置产生校正目标位置,然后输出到位置误差计算器。 位置误差计算器从伺服位置信号和目标位置信号产生位置误差信号(PES),并将PES输出到伺服控制器。 伺服控制器根据PES生成控制信号(DACOUT),并且电动机驱动单元根据控制信号向VCM提供所需值的电流。

    Storage devices and method of transferring file between the devices
    4.
    发明申请
    Storage devices and method of transferring file between the devices 有权
    存储设备和在设备之间传输文件的方法

    公开(公告)号:US20050207253A1

    公开(公告)日:2005-09-22

    申请号:US11084693

    申请日:2005-03-18

    摘要: A file is transferred directly between a parent magnetic-disk device and a child magnetic-disk device. In one embodiment, a parent magnetic-disk device has a host-mode execution program, whereas a child magnetic-disk device is capable operating in a device mode as is the case with an ordinary magnetic-disk device. The parent magnetic-disk device has an operating-mode-setting unit including a special-purpose jumper block. An MPU employed in the parent magnetic-disk device executes the host-mode execution program to put the parent magnetic-disk device in a host mode. At an activation time, the MPU refers to the logic of the special jumper block to start an operation in the host mode. The MPU controls the parent magnetic-disk device to directly transfer a file to the child magnetic-disk device. Thus, the file can be transferred between the parent and child magnetic-disk devices without intervention by a host computer.

    摘要翻译: 文件直接在父磁盘装置和子磁盘装置之间传送。 在一个实施例中,母磁盘装置具有主机模式执行程序,而子磁盘装置能够像普通磁盘装置一样在设备模式下运行。 母磁盘装置具有包括专用跳线块的操作模式设定单元。 在母磁盘装置中使用的MPU执行主机模式执行程序以将母磁盘装置置于主机模式。 在激活时,MPU参考专用跳线块的逻辑,以在主机模式下开始运行。 MPU控制母磁盘装置将文件直接传送到子磁盘装置。 因此,该文件可以在父磁盘和子磁盘设备之间进行传输,而无需主计算机的干预。

    Disk drive device and servo control method thereof
    5.
    发明授权
    Disk drive device and servo control method thereof 有权
    磁盘驱动装置及其伺服控制方法

    公开(公告)号:US07808739B2

    公开(公告)日:2010-10-05

    申请号:US12290267

    申请日:2008-10-28

    IPC分类号: G11B21/02

    摘要: Embodiments of the present invention help to perform appropriate servo control in response to detected vibration in a disk drive device having a vibration sensor. In an embodiment of the present invention, an HDD switches a correction servo mode to perform vibration correction in head positioning and a normal servo mode not to perform the vibration correction. The HDD performs servo positioning in either one of the serve modes and determines servo positioning accuracy in the servo mode from the measured positional error signal. The HDD obtains data indicating the servo positioning accuracy in the other servo mode from a table. The HDD compares the accuracy in the two servo modes and selects the servo mode with higher accuracy. The table contains previous measurements on servo positioning accuracy in the servo modes.

    摘要翻译: 本发明的实施例有助于响应于具有振动传感器的盘驱动装置中的检测到的振动来执行适当的伺服控制。 在本发明的实施例中,HDD切换校正伺服模式以执行磁头定位中的振动校正和不进行振动校正的正常伺服模式。 HDD以任一种服务模式执行伺服定位,并根据测量的位置误差信号确定伺服模式下的伺服定位精度。 HDD从表中获取表示其他伺服模式中的伺服定位精度的数据。 HDD比较两种伺服模式的精度,并以更高的精度选择伺服模式。 该表包含以前对伺服模式下伺服定位精度的测量。

    Disk drive device and servo control method thereof
    6.
    发明申请
    Disk drive device and servo control method thereof 有权
    磁盘驱动装置及其伺服控制方法

    公开(公告)号:US20090135516A1

    公开(公告)日:2009-05-28

    申请号:US12290267

    申请日:2008-10-28

    IPC分类号: G11B21/02

    摘要: Embodiments of the present invention help to perform appropriate servo control in response to detected vibration in a disk drive device having a vibration sensor. In an embodiment of the present invention, an HDD switches a correction servo mode to perform vibration correction in head positioning and a normal servo mode not to perform the vibration correction. The HDD performs servo positioning in either one of the serve modes and determines servo positioning accuracy in the servo mode from the measured positional error signal. The HDD obtains data indicating the servo positioning accuracy in the other servo mode from a table. The HDD compares the accuracy in the two servo modes and selects the servo mode with higher accuracy. The table contains previous measurements on servo positioning accuracy in the servo modes.

    摘要翻译: 本发明的实施例有助于响应于具有振动传感器的盘驱动装置中的检测到的振动来执行适当的伺服控制。 在本发明的实施例中,HDD切换校正伺服模式以执行磁头定位中的振动校正和不进行振动校正的正常伺服模式。 HDD以任一种服务模式执行伺服定位,并根据测量的位置误差信号确定伺服模式下的伺服定位精度。 HDD从表中获取表示其他伺服模式中的伺服定位精度的数据。 HDD比较两种伺服模式的精度,并以更高的精度选择伺服模式。 该表包含以前对伺服模式下伺服定位精度的测量。

    Magnetic disk drive, method for registering defective sector, and method for controlling flying height
    7.
    发明申请
    Magnetic disk drive, method for registering defective sector, and method for controlling flying height 失效
    磁盘驱动器,缺陷扇区的登记方法以及控制飞行高度的方法

    公开(公告)号:US20070121235A1

    公开(公告)日:2007-05-31

    申请号:US11605649

    申请日:2006-11-28

    IPC分类号: G11B5/09 G11B21/02

    CPC分类号: G11B5/59633 G11B5/59666

    摘要: Embodiments in accordance with the present invention relate to suppressing effects of the rotational jitter of a rotating medium during self-writing of patterns on the medium. In one embodiment, patterns are written on a track TE first. While a clock frequency is modulated using the difference between the readout time and target time of each pattern PE on the track TE, patterns PF are written on a track TF after a calculated delay time from the readout of each pattern PE. During pattern writing on the track TF, any timing errors of the patterns PE are stored into memory. While the target time for each pattern PF on the track TF is being corrected using the stored timing errors of the patterns PE and the clock frequency is being modulated using the difference between the readout time and corrected target time of each pattern PF, patterns PG are written on a track TG after a calculated delay time from the readout of each pattern PF.

    摘要翻译: 根据本发明的实施例涉及在图案自写入介质时抑制旋转介质的旋转抖动的影响。 在一个实施例中,模式首先写在轨道TE上。 在使用轨道TE上的每个图案PE的读出时间和目标时间之间的差来调制时钟频率的情况下,在从每个图案PE的读出计算的延迟时间之后,在轨道TF上写入图案PF。 在轨道TF上的模式写入期间,模式PE的任何定时错误都被存储到存储器中。 虽然使用存储的图案PE的定时误差来校正轨道TF上的每个图案PF的目标时间,并且使用每个图案PF的读出时间和校正的目标时间之间的差来调制时钟频率,但是图案PG是 在从每个图案PF的读出计算的延迟时间之后,在轨道TG上写入。

    Storage devices and method of transferring file between the devices
    8.
    发明授权
    Storage devices and method of transferring file between the devices 有权
    存储设备和在设备之间传输文件的方法

    公开(公告)号:US07620740B2

    公开(公告)日:2009-11-17

    申请号:US11084693

    申请日:2005-03-18

    IPC分类号: G06F17/00

    摘要: A file is transferred directly between a parent magnetic-disk device and a child magnetic-disk device. In one embodiment, a parent magnetic-disk device has a host-mode execution program, whereas a child magnetic-disk device is capable operating in a device mode as is the case with an ordinary magnetic-disk device. The parent magnetic-disk device has an operating-mode-setting unit including a special-purpose jumper block. An MPU employed in the parent magnetic-disk device executes the host-mode execution program to put the parent magnetic-disk device in a host mode. At an activation time, the MPU refers to the logic of the special jumper block to start an operation in the host mode. The MPU controls the parent magnetic-disk device to directly transfer a file to the child magnetic-disk device. Thus, the file can be transferred between the parent and child magnetic-disk devices without intervention by a host computer.

    摘要翻译: 文件直接在父磁盘装置和子磁盘装置之间传送。 在一个实施例中,母磁盘装置具有主机模式执行程序,而子磁盘装置能够像普通磁盘装置一样在设备模式下运行。 母磁盘装置具有包括专用跳线块的操作模式设定单元。 在母磁盘装置中使用的MPU执行主机模式执行程序以将母磁盘装置置于主机模式。 在激活时,MPU参考专用跳线块的逻辑,以在主机模式下开始运行。 MPU控制母磁盘装置将文件直接传送到子磁盘装置。 因此,该文件可以在父磁盘和子磁盘设备之间进行传输,而无需主计算机的干预。

    Magnetic disk drive and method for registering defective sector using timing control of pattern writing
    9.
    发明授权
    Magnetic disk drive and method for registering defective sector using timing control of pattern writing 失效
    磁盘驱动器和使用模式写入的定时控制注册缺陷扇区的方法

    公开(公告)号:US07486467B2

    公开(公告)日:2009-02-03

    申请号:US11605649

    申请日:2006-11-28

    IPC分类号: G11B21/12

    CPC分类号: G11B5/59633 G11B5/59666

    摘要: Embodiments in accordance with the present invention relate to suppressing effects of the rotational jitter of a rotating medium during self-writing of patterns on the medium. In one embodiment, patterns are written on a track TE first. While a clock frequency is modulated using the difference between the readout time and target time of each pattern PE on the track TE, patterns PF are written on a track TF after a calculated delay time from the readout of each pattern PE. During pattern writing on the track TF, any timing errors of the patterns PE are stored into memory. While the target time for each pattern PF on the track TF is being corrected using the stored timing errors of the patterns PE and the clock frequency is being modulated using the difference between the readout time and corrected target time of each pattern PF, patterns PG are written on a track TG after a calculated delay time from the readout of each pattern PF.

    摘要翻译: 根据本发明的实施例涉及在图案自写入介质时抑制旋转介质的旋转抖动的影响。 在一个实施例中,模式首先写在轨道TE上。 在使用轨道TE上的每个图案PE的读出时间和目标时间之间的差来调制时钟频率的情况下,在从每个图案PE的读出计算的延迟时间之后,在轨道TF上写入图案PF。 在轨道TF上的模式写入期间,模式PE的任何定时错误都被存储到存储器中。 虽然使用存储的图案PE的定时误差来校正轨道TF上的每个图案PF的目标时间,并且使用每个图案PF的读出时间和校正的目标时间之间的差来调制时钟频率,但是图案PG是 在从每个图案PF的读出计算的延迟时间之后,在轨道TG上写入。

    Method of writing pattern in disk, method of following track on disk, and apparatus for writing pattern in disk
    10.
    发明授权
    Method of writing pattern in disk, method of following track on disk, and apparatus for writing pattern in disk 失效
    在磁盘中写入模式的方法,在磁盘上跟踪轨迹的方法,以及在盘中写入模式的装置

    公开(公告)号:US07646561B2

    公开(公告)日:2010-01-12

    申请号:US11895322

    申请日:2007-08-23

    IPC分类号: G11B5/596

    CPC分类号: G11B5/59688 G11B5/59666

    摘要: Embodiments of the present invention efficiently perform servo correction for prevention of propagation of a position error in a radial direction in self servo write (SSW). According to one embodiment, in SSW, a target position of a reference track TO in writing a servo write track TN is corrected. The target position is represented as a target value of a position signal calculated from a signal read by a read element. A signal indicating a deviation (a position error) from the target position (the target value) is referred to as PES. The SSW in this example performs correction of target positions in respective tracks using an impulse response of a servo system. Consequently, it is possible to efficiently and effectively prevent the propagation of position error in the SSW.

    摘要翻译: 本发明的实施例有效地进行伺服校正,以防止自伺服写入(SSW)中径向位置误差的传播。 根据一个实施例,在SSW中,校正写入伺服写磁道TN的参考磁道TO的目标位置。 目标位置被表示为根据由读取元件读取的信号计算出的位置信号的目标值。 指示与目标位置(目标值)的偏差(位置误差)的信号被称为PES。 该示例中的SSW使用伺服系统的脉冲响应来执行各轨道中的目标位置的校正。 因此,可有效且有效地防止SSW中的位置误差的传播。