公开(公告)号：US07489470B2

公开(公告)日：2009-02-10

申请号：US11725038

申请日：2007-03-15

申请人： Hiroshi Uchida ,  Mirei Hosono ,  Hideki Ohzeki ,  Tetsuo Ueda

发明人： Hiroshi Uchida ,  Mirei Hosono ,  Hideki Ohzeki ,  Tetsuo Ueda

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： Embodiments of the present invention provide a magnetic recording apparatus capable of generating RRO compensation information that can expand the disturbance frequency range in which to compensate for RRO. Embodiments of the present invention describe a magnetic recording apparatus that uses a plurality of repetitive control systems to detect repeatable runout during the rotation of a magnetic recording medium for a frequency characteristic of each of the repetitive control systems. The magnetic recording apparatus further generates compensation information to compensate for each of the detected repeatable runout. The magnetic recording apparatus still further writes the compensation information generated for each of the repetitive control systems to a servo signal, thus suppressing and controlling the repeatable runout.

摘要翻译： 本发明的实施例提供一种磁记录装置，其能够产生可以扩大其中补偿RRO的干扰频率范围的RRO补偿信息。 本发明的实施例描述了一种磁记录装置，其使用多个重复控制系统来检测用于每个重复控制系统的频率特性的磁记录介质旋转期间的可重复跳动。 磁记录装置进一步产生补偿信息以补偿每个检测到的可重复跳动。 磁记录装置还将针对每个重复控制系统生成的补偿信息写入伺服信号，从而抑制和控制可重复的跳动。

公开(公告)号：US20080186617A1

公开(公告)日：2008-08-07

申请号：US12069311

申请日：2008-02-07

申请人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

发明人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

IPC分类号： G11B5/596

CPC分类号： G11B5/59688 ,  G11B5/59627

摘要： Embodiments of the present invention help to achieve a read error recovery, and suppress decreases in the capacity of the disk drive device and degradation in performance. In one embodiment, a hard disk drive (HDD) performs following control without use of repeatable run-out (RRO) compensation information on a magnetic disk in a normal reading process. When an error occurs in a normal reading process, the HDD moves a read element to a position different from a target position of the normal reading process. At the position where the read element has been moved, the read element reads out the RRO compensation information. In a recovery procedure for the reading process where the error has occurred, the HDD performs following control with compensation by the servo compensation information read out by the read element.

摘要翻译： 本发明的实施例有助于实现读错误恢复，并且抑制磁盘驱动装置的容量的降低和性能的降低。 在一个实施例中，硬盘驱动器（HDD）在正常读取过程中不使用磁盘上的可重复的耗尽（RRO）补偿信息执行以下控制。 当在正常读取过程中发生错误时，HDD将读取元件移动到与正常读取处理的目标位置不同的位置。 在读取元素移动的位置，读取元件读出RRO补偿信息。 在发生错误的读取处理的恢复过程中，HDD通过由读取元素读出的伺服补偿信息进行补偿来执行以下控制。

公开(公告)号：US07595955B2

公开(公告)日：2009-09-29

申请号：US12069311

申请日：2008-02-07

申请人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

发明人： Mirei Hosono ,  Kazunari Tsuchimoto ,  Hideki Ohzeki ,  Tetsuo Ueda ,  Isao Yoneda ,  Kazuyuki Ishibashi ,  Hiroshi Uchida

IPC分类号： G11B5/596 ,  G11B20/20

CPC分类号： G11B5/59688 ,  G11B5/59627

摘要： Embodiments of the present invention help to achieve a read error recovery, and suppress decreases in the capacity of the disk drive device and degradation in performance. In one embodiment, a hard disk drive (HDD) performs following control without use of repeatable run-out (RRO) compensation information on a magnetic disk in a normal reading process. When an error occurs in a normal reading process, the HDD moves a read element to a position different from a target position of the normal reading process. At the position where the read element has been moved, the read element reads out the RRO compensation information. In a recovery procedure for the reading process where the error has occurred, the HDD performs following control with compensation by the servo compensation information read out by the read element.

摘要翻译： 本发明的实施例有助于实现读错误恢复，并且抑制磁盘驱动装置的容量的降低和性能的降低。 在一个实施例中，硬盘驱动器（HDD）在正常读取过程中不使用磁盘上的可重复的耗尽（RRO）补偿信息执行以下控制。 当在正常读取过程中发生错误时，HDD将读取元件移动到与正常读取处理的目标位置不同的位置。 在读取元素移动的位置，读取元件读出RRO补偿信息。 在发生错误的读取处理的恢复过程中，HDD通过由读取元素读出的伺服补偿信息进行补偿来执行以下控制。

公开(公告)号：US20070230025A1

公开(公告)日：2007-10-04

申请号：US11725038

申请日：2007-03-15

申请人： Hiroshi Uchida ,  Mirei Hosono ,  Hideki Ohzeki ,  Tetsuo Ueda

发明人： Hiroshi Uchida ,  Mirei Hosono ,  Hideki Ohzeki ,  Tetsuo Ueda

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： Embodiments of the present invention provide a magnetic recording apparatus capable of generating RRO compensation information that can expand the disturbance frequency range in which to compensate for RRO. Embodiments of the present invention describe a magnetic recording apparatus that uses a plurality of repetitive control systems to detect repeatable runout during the rotation of a magnetic recording medium for a frequency characteristic of each of the repetitive control systems. The magnetic recording apparatus further generates compensation information to compensate for each of the detected repeatable runout. The magnetic recording apparatus still further writes the compensation information generated for each of the repetitive control systems to a servo signal, thus suppressing and controlling the repeatable runout.

摘要翻译： 本发明的实施例提供一种磁记录装置，其能够产生可以扩大其中补偿RRO的干扰频率范围的RRO补偿信息。 本发明的实施例描述了一种磁记录装置，其使用多个重复控制系统来检测用于每个重复控制系统的频率特性的磁记录介质旋转期间的可重复跳动。 磁记录装置进一步产生补偿信息以补偿每个检测到的可重复跳动。 磁记录装置还将针对每个重复控制系统生成的补偿信息写入伺服信号，从而抑制和控制可重复的跳动。

公开(公告)号：US07561365B2

公开(公告)日：2009-07-14

申请号：US11527899

申请日：2006-09-26

申请人： Masaaki Noguchi ,  Tetsuo Ueda ,  Gaku Ikedo ,  Mirei Hosono

发明人： Masaaki Noguchi ,  Tetsuo Ueda ,  Gaku Ikedo ,  Mirei Hosono

IPC分类号： G11B21/02

CPC分类号： G11B5/59694 ,  G11B5/5582

摘要： Embodiments of the present invention provide a disk drive capable of reducing, by means of simple control, vibrations applied to the drive and vibrations occurring in the drive, and a control method for controlling the disk drive. In one embodiment, a servo system comprises a sensor unit for detecting vibrations, a correction signal generator for, when the sensor unit detects vibrations, generating a correction signal, a position error signal generator for generating a PES signal on the basis of servo data read out from a disk and a target position, a servo controller for generating a servo control signal for controlling a position of a head on the basis of the PES signal, and a servo controller for generating a driving signal on the basis of the correction signal and the servo control signal. The correction signal generator includes a plurality of filters, each of which eliminates vibrations in each different frequency band, the correction signal generator selecting one or two or more RV-FF filters when vibrations are detected, and then generating a correction signal so as to reduce a position error indicated by the PES signal.

摘要翻译： 本发明的实施例提供一种能够通过简单的控制来减少施加在驱动器上的振动和驱动中发生的振动的磁盘驱动器，以及用于控制磁盘驱动器的控制方法。 在一个实施例中，伺服系统包括用于检测振动的传感器单元，当传感器单元检测振动时产生校正信号的校正信号发生器，用于根据伺服数据读取产生PES信号的位置误差信号发生器 从盘和目标位置出来的伺服控制器，用于产生用于根据PES信号控制头的位置的伺服控制信号的伺服控制器，以及用于基于校正信号产生驱动信号的伺服控制器，以及 伺服控制信号。 校正信号发生器包括多个滤波器，每个滤波器消除每个不同频带的振动，校正信号发生器在检测到振动时选择一个或两个或更多个RV-FF滤波器，然后产生校正信号以便减少 由PES信号指示的位置误差。

公开(公告)号：US20070070540A1

公开(公告)日：2007-03-29

申请号：US11527899

申请日：2006-09-26

申请人： Masaaki Noguchi ,  Tetsuo Ueda ,  Gaku Ikedo ,  Mirei Hosono

发明人： Masaaki Noguchi ,  Tetsuo Ueda ,  Gaku Ikedo ,  Mirei Hosono

IPC分类号： G11B21/02

CPC分类号： G11B5/59694 ,  G11B5/5582

摘要： Embodiments of the present invention provide a disk drive capable of reducing, by means of simple control, vibrations applied to the drive and vibrations occurring in the drive, and a control method for controlling the disk drive. In one embodiment, a servo system comprises a sensor unit for detecting vibrations, a correction signal generator for, when the sensor unit detects vibrations, generating a correction signal, a position error signal generator for generating a PES signal on the basis of servo data read out from a disk and a target position, a servo controller for generating a servo control signal for controlling a position of a head on the basis of the PES signal, and a servo controller for generating a driving signal on the basis of the correction signal and the servo control signal. The correction signal generator includes a plurality of filters, each of which eliminates vibrations in each different frequency band, the correction signal generator selecting one or two or more RV-FF filters when vibrations are detected, and then generating a correction signal so as to reduce a position error indicated by the PES signal.

摘要翻译： 本发明的实施例提供一种能够通过简单的控制来减少施加在驱动器上的振动和驱动中发生的振动的磁盘驱动器，以及用于控制磁盘驱动器的控制方法。 在一个实施例中，伺服系统包括用于检测振动的传感器单元，当传感器单元检测振动时产生校正信号的校正信号发生器，用于根据伺服数据读取产生PES信号的位置误差信号发生器 从盘和目标位置出来的伺服控制器，用于产生用于根据PES信号控制头的位置的伺服控制信号的伺服控制器，以及用于基于校正信号产生驱动信号的伺服控制器，以及 伺服控制信号。 校正信号发生器包括多个滤波器，每个滤波器消除每个不同频带的振动，校正信号发生器在检测到振动时选择一个或两个或更多个RV-FF滤波器，然后产生校正信号以便减少 由PES信号指示的位置误差。

公开(公告)号：US20060176003A1

公开(公告)日：2006-08-10

申请号：US11346813

申请日：2006-02-03

申请人： Mirei Hosono ,  Isao Yoneda

发明人： Mirei Hosono ,  Isao Yoneda

IPC分类号： G05D23/275

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

摘要： Embodiments of the invention provide a data storage apparatus and its control method capable of accurately reading/writing data. A data storage apparatus in an embodiment of the invention comprises: a servo control section which, based on servo data stored on the storage medium, generates servo control data to control the position of the head; a sensor to detect vibration; a compensation data generating section which generates compensation data to compensate for the head's position error caused by vibration; a drive signal generating section which can generate a drive signal to move the head based on the servo control data and the compensation data; an arithmetic processing section which updates a rating value to evaluate the level of vibration given to the data storage apparatus; and a determination processing section which, according to the updated rating value, determines whether to perform the compensation using the compensation data; wherein the drive signal generating section compensates the servo control data using the compensation data in generating the drive signal.

摘要翻译： 本发明的实施例提供一种能够准确地读/写数据的数据存储装置及其控制方法。 本发明实施例中的数据存储装置包括：伺服控制部，其基于存储在存储介质上的伺服数据，生成用于控制头部位置的伺服控制数据; 检测振动的传感器; 补偿数据生成部，生成用于补偿由振动引起的头部位置误差的补偿数据; 驱动信号生成部，其能够基于所述伺服控制数据和所述补偿数据生成用于移动所述头部的驱动信号; 算术处理部，其更新评价值，以评估给予所述数据存储装置的振动水平; 以及确定处理部，其根据所述更新的评价值，确定是否使用所述补偿数据进行所述补偿; 其中，所述驱动信号生成部在生成所述驱动信号时，使用所述补偿数据来补偿所述伺服控制数据。

公开(公告)号：US06937422B2

公开(公告)日：2005-08-30

申请号：US10289603

申请日：2002-11-07

申请人： Hien Phu Dang ,  Mirei Hosono ,  Naoyuki Kagami ,  Kenji Okada ,  Arun Sharma ,  Gordon James Smith ,  Sri M. Sri-Jayantha

发明人： Hien Phu Dang ,  Mirei Hosono ,  Naoyuki Kagami ,  Kenji Okada ,  Arun Sharma ,  Gordon James Smith ,  Sri M. Sri-Jayantha

IPC分类号： G11B21/10 ,  G06F11/07 ,  G11B5/596 ,  G11B19/04 ,  G11B19/28

CPC分类号： G11B5/596 ,  G11B19/04

摘要： An apparatus and method of controlling an actuator of a data storage device detect and/or correct narrowband mechanical excitations such as due to spindle bearing defects through sensing and/or rejecting disturbance frequencies associated with such narrowband mechanical excitations in an actuator control signal generated by a data storage device controller. A narrowband filter may be used to reject, from an actuator control signal generated by a data storage device controller, a disturbance frequency associated with a spindle bearing defect in a data storage device, and disposed in proximity to a zero crossover frequency associated with the data storage device controller. In addition, a peak filter disposed in a control loop of a data storage device controller may be configured to detect a spindle bearing defect in a data storage device by detecting an amplitude of a control signal in the control loop in proximity to a disturbance frequency associated with the spindle bearing defect.

摘要翻译： 控制数据存储设备的致动器的装置和方法通过检测和/或排除与由这样的窄带机械激励相关联的干扰频率来检测和/或校正窄带机械激励，例如由于主轴承载缺陷而导致的致动器控制信号产生的干扰频率 数据存储设备控制器。 窄带滤波器可以用于从数据存储设备控制器产生的致动器控制信号中拒绝与数据存储设备中的主轴承载缺陷相关联的干扰频率，并且设置在与数据相关联的零交叉频率附近 存储设备控制器 此外，布置在数据存储装置控制器的控制环路中的峰值滤波器可以被配置为通过检测控制回路中与干扰频率相关联的控制信号的幅度来检测数据存储装置中的主轴承载缺陷 主轴轴承缺陷。

公开(公告)号：US06961202B2

公开(公告)日：2005-11-01

申请号：US10421447

申请日：2003-04-23

申请人： Gaku Ikedo ,  Mirei Hosono ,  Yoshitaka Kakizaki ,  Naoyuki Kagami

发明人： Gaku Ikedo ,  Mirei Hosono ,  Yoshitaka Kakizaki ,  Naoyuki Kagami

IPC分类号： G11B33/14 ,  G11B21/08 ,  G11B21/10 ,  G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B5/596 ,  G11B5/012

CPC分类号： G11B33/121 ,  G11B25/043 ,  G11B33/08

摘要： A data storage device includes an enclosure case and a circuit board attached to an outer surface of the enclosure case, the enclosure case containing a spindle motor and a circular movement actuator, the spindle motor being for rotating a storage medium, the circular movement actuator being for controlling a position of a read and write head for reading data from the storage medium and for writing data to the storage medium, the circuit board having an interface cable connector at one end portion thereof for establishing a connection to a host. The circuit board is located between the interface cable connector and the spindle motor, and is attached to the enclosure case by use of a plurality of fastening members. An acceleration sensor is attached to the circuit board next to the fastening members for detecting vibrations applied to the data storage device in a rotation direction in a plane along the circuit board.

摘要翻译： 数据存储装置包括外壳和附接到外壳的外表面的电路板，外壳包含主轴电机和圆形运动致动器，主轴电机用于旋转存储介质，圆周运动致动器为 用于控制用于从存储介质读取数据并用于将数据写入存储介质的读写头的位置，所述电路板在其一个端部具有用于建立到主机的连接的接口电缆连接器。 电路板位于接口电缆连接器和主轴电机之间，并且通过使用多个紧固件附接到外壳。 加速度传感器附着在紧固部件旁边，用于检测沿着电路板的平面中沿旋转方向施加到数据存储装置的振动。

公开(公告)号：US07145307B2

公开(公告)日：2006-12-05

申请号：US11346813

申请日：2006-02-03

申请人： Mirei Hosono ,  Isao Yoneda

发明人： Mirei Hosono ,  Isao Yoneda

IPC分类号： G11B21/02

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

摘要： Embodiments of the invention provide a data storage apparatus and its control method capable of accurately reading/writing data. A data storage apparatus in an embodiment of the invention comprises: a servo control section which, based on servo data stored on the storage medium, generates servo control data to control the position of the head; a sensor to detect vibration; a compensation data generating section which generates compensation data to compensate for the head's position error caused by vibration; a drive signal generating section which can generate a drive signal to move the head based on the servo control data and the compensation data; an arithmetic processing section which updates a rating value to evaluate the level of vibration given to the data storage apparatus; and a determination processing section which, according to the updated rating value, determines whether to perform the compensation using the compensation data; wherein the drive signal generating section compensates the servo control data using the compensation data in generating the drive signal.