公开(公告)号：US5402400A

公开(公告)日：1995-03-28

申请号：US109593

申请日：1993-08-20

申请人： Yosuke Hamada ,  Haruaki Otsuki ,  Yuji Hata ,  Shigeyoshi Saito

发明人： Yosuke Hamada ,  Haruaki Otsuki ,  Yuji Hata ,  Shigeyoshi Saito

IPC分类号： G11B21/08 ,  G11B17/22

CPC分类号： G11B21/083

摘要： A disk storage device comprises a microcomputer for estimating an external disturbance compensation signal and storing it and a first adder for adding the external disturbance compensation signal as a feedforward signal to a positioning compensation signal to a drive circuit. Where a positioning compensator for estimating a velocity signal based on a drive signal is provided, a difference signal between the drive signal and a signal proportional to the external disturbance compensation signal, instead of the drive signal, is applied to velocity estimation unit for correction.

摘要翻译： 磁盘存储装置包括用于估计外部干扰补偿信号并存储的微计算机，以及用于将作为前馈信号的外部干扰补偿信号与定位补偿信号相加的驱动电路的第一加法器。 在提供用于基于驱动信号估计速度信号的定位补偿器的情况下，驱动信号和与外部干扰补偿信号成比例的信号（而不是驱动信号）之间的差分信号被施加到用于校正的速度估计单元。

公开(公告)号：US20070153412A1

公开(公告)日：2007-07-05

申请号：US11588863

申请日：2006-10-27

申请人： Sumie Takeda ,  Katsumoto Onoyama ,  Yosuke Hamada ,  Hiroyuki Oosawa

发明人： Sumie Takeda ,  Katsumoto Onoyama ,  Yosuke Hamada ,  Hiroyuki Oosawa

IPC分类号： G11B19/02 ,  G11B15/04

CPC分类号： G11B19/04 ,  G11B5/40

摘要： Embodiments in accordance with the present invention provide a disk storage device and a control method for the disk storage device, which are capable of precluding an off-track write resulted from stick-slip caused by thermal distortion. A magnetic disk device is provided with a magnetic disk, a head that makes a writing to the magnetic disk, and a temperature sensor that detects the temperature inside of the magnetic disk device. Moreover, the magnetic disk device 1 changes determination requirements for use to make a determination whether or not to prohibit the writing by the head to the magnetic disk based on a measurement temperature detected by the temperature sensor and an amount of temperature change calculated using the measurement temperature.

摘要翻译： 根据本发明的实施例提供一种用于盘存储装置的盘存储装置和控制方法，其能够排除由热失真引起的粘滑现象造成的偏离轨迹写入。 磁盘装置设置有磁盘，对磁盘进行写入的磁头以及检测磁盘装置内的温度的温度传感器。 此外，磁盘装置1改变用于确定是否基于由温度传感器检测的测量温度和使用该测量计算的温度变化量来禁止磁头对磁盘的写入的确定要求 温度。

公开(公告)号：US06989957B2

公开(公告)日：2006-01-24

申请号：US10676570

申请日：2003-09-30

申请人： Yosuke Hamada ,  Kazuyuki Date

发明人： Yosuke Hamada ,  Kazuyuki Date

IPC分类号： G11B5/55

CPC分类号： G11B21/083 ,  G11B5/5547 ,  G11B7/08529

摘要： A disk drive comprises a controller (70) that calculates a drive signal for positioning a head at a desired track on the basis of a desired track-position signal and a measured head-position signal, and a drive circuit for driving a voice-coil motor. The drive circuit includes a current feedback amplifier (21) and a voltage feedback amplifier (50), which can be selectively used. The controller (70) is provided with a speed limiter for determining a maximum speed limiting the speed of a head. The voltage feedback amplifier of the drive circuit is used when the head-position signal is unstable or otherwise malfunctioning, and the current feedback amplifier of the drive circuit is used when the head-position signal is normal.

摘要翻译： 磁盘驱动器包括控制器（70），该控制器根据期望的磁道位置信号和测量的磁头位置信号来计算用于将磁头定位在期望磁道上的驱动信号，以及用于驱动音圈的驱动电路 发动机。 驱动电路包括可以选择性地使用的电流反馈放大器（21）和电压反馈放大器（50）。 控制器（70）设置有速度限制器，用于确定限制头部速度的最大速度。 当头位信号不稳定或其他故障时，使用驱动电路的电压反馈放大器，当头位置信号正常时，使用驱动电路的电流反馈放大器。

公开(公告)号：US6130797A

公开(公告)日：2000-10-10

申请号：US913835

申请日：1997-09-16

申请人： Kyo Akagi ,  Yoshihiro Shiroishi ,  Reijiro Tsuchiya ,  Takehiko Hamaguchi ,  Masuo Umemoto ,  Mikio Suzuki ,  Takashi Kawabe ,  Katsuro Watanabe ,  Kiyoshi Matsumoto ,  Atsushi Saito ,  Kouichirou Wakabayashi ,  Yosuke Hamada

发明人： Kyo Akagi ,  Yoshihiro Shiroishi ,  Reijiro Tsuchiya ,  Takehiko Hamaguchi ,  Masuo Umemoto ,  Mikio Suzuki ,  Takashi Kawabe ,  Katsuro Watanabe ,  Kiyoshi Matsumoto ,  Atsushi Saito ,  Kouichirou Wakabayashi ,  Yosuke Hamada

IPC分类号： G11B5/596 ,  G11B7/095 ,  G11B11/105

CPC分类号： G11B5/59655 ,  G11B11/10576 ,  G11B5/59627 ,  G11B11/10578 ,  G11B7/0953

摘要： Virtual tracks are set so that the rotation center of a magnetic recording medium or the vicinity of the rotation center coincides with the track center of the data information, and positioning servo control is performed. Thus, since it is not necessary to faithfully follow the track center line specified by the servo information that is previously recorded on the magnetic recording medium or magnetooptical recording medium, a vibration is not easily caused in synchronism with the rotation. Therefore, when the rotation center and the pattern center are deviated from each other, since a vibration is not caused in synchronism with the rotation, the magnetic head of the magnetic recorder or the magnetooptical head of the magnetooptical recorder is able to follow tracks with higher precision. Accordingly, the recording density can be increased.

摘要翻译： PCT No.PCT / JP95 / 00474 Sec。 371日期1997年9月17日 102（e）1997年9月17日PCT 1995年3月17日PCT公布。 公开号WO96 / 29700 日期1996年9月26日设置虚拟磁道，使得磁记录介质的旋转中心或旋转中心附近与数据信息的轨道中心一致，并执行定位伺服控制。 因此，由于不需要忠实地跟踪由先前记录在磁记录介质或磁光记录介质上的伺服信息指定的轨道中心线，因此不易与旋转同步地产生振动。 因此，当旋转中心和图案中心彼此偏离时，由于不会与旋转同步地产生振动，磁记录器的磁头或磁光记录器的磁光头能够跟随具有更高的轨迹 精确。 因此，可以提高记录密度。

公开(公告)号：US06611118B2

公开(公告)日：2003-08-26

申请号：US09953903

申请日：2001-09-18

申请人： Jiro Abe ,  Yosuke Hamada

发明人： Jiro Abe ,  Yosuke Hamada

IPC分类号： H02P540

CPC分类号： G11B5/553 ,  G11B5/5547

摘要： A magnetic disk drive uses a back electromotive force sensor that detects the back electromotive force produced in a VCM actuator without being affected by fast changes of current during a high-speed control sampling cycle, and that enables configuration of a fast, high-band speed control system. A back electromotive force sensor for disk drives has a first circuit that detests the coil terminal voltage of a voice coil motor and outputs that value as a band limited signal that is a constant multiple-of that value, a second circuit that detects a drive current in the voice coil motor and outputs a voltage signal proportional to that drive current, and a computation circuit that takes the difference between the output of said first circuit and the output of said second circuit.

摘要翻译： 磁盘驱动器使用反电动势传感器，其检测在VCM致动器中产生的反电动势，而不受高速控制采样周期期间电流的快速变化的影响，并且能够配置快速，高带速 控制系统。 用于磁盘驱动器的反电动势传感器具有第一电路，其将音圈电动机的线圈端电压抑制，并输出该值作为该值的常数倍数的频带限制信号;检测驱动电流的第二电路 在所述音圈电动机中输出与所述驱动电流成比例的电压信号，以及计算电路，其将所述第一电路的输出与所述第二电路的输出之间的差作为参考。

公开(公告)号：US06407876B1

公开(公告)日：2002-06-18

申请号：US09986298

申请日：2001-11-08

申请人： Takashi Yamaguchi ,  Katsuhiro Tsuneta ,  Katsumoto Onoyama ,  Tsuyoshi Arai ,  Yoshikatsu Fujii ,  Hidehiko Numasato ,  Yosuke Hamada ,  Masahito Kobayashi

发明人： Takashi Yamaguchi ,  Katsuhiro Tsuneta ,  Katsumoto Onoyama ,  Tsuyoshi Arai ,  Yoshikatsu Fujii ,  Hidehiko Numasato ,  Yosuke Hamada ,  Masahito Kobayashi

IPC分类号： G11B2102

CPC分类号： G11B5/553

摘要： A sector servo type magnetic disk apparatus is provided with, in addition to servo signals, a sensor such as an accelerometer for detecting a state of a magnetic head or a support for the magnetic head at a period shorter than a sampling period of the servo signals. Since an accelerometer mounted on the magnetic head or the support for the magnetic head detects an acceleration, the control performance of a servo control system can be improved, such as reduction of generation of mechanism resonance vibrations of a carriage and improvement on detection precision of a speed signal.

摘要翻译： 除了伺服信号之外，扇区伺服型磁盘装置还设置有诸如用于在短于伺服信号的采样周期的时间段内检测磁头的状态或磁头的支撑的诸如加速度计的传感器 。 由于安装在磁头上的加速度计或磁头支撑件检测到加速度，所以可以提高伺服控制系统的控制性能，例如减少滑架的机构共振振动的产生，提高检测精度 速度信号。

公开(公告)号：US20110102929A1

公开(公告)日：2011-05-05

申请号：US12608930

申请日：2009-10-29

申请人： Masaharu KANNO ,  Yosuke Hamada ,  So Ogiwara ,  Tatsuya Katoh ,  Masahiro Shimizu

发明人： Masaharu KANNO ,  Yosuke Hamada ,  So Ogiwara ,  Tatsuya Katoh ,  Masahiro Shimizu

IPC分类号： G11B5/09

CPC分类号： G11B20/10009 ,  G11B5/59616 ,  G11B7/0079 ,  G11B7/0901 ,  G11B20/10222 ,  G11B20/10435 ,  G11B2020/1281 ,  G11B2220/2516

摘要： A method of timing control for servo-data detection in a disk drive. The method includes retrieving a plurality of servo sectors arranged discretely in a circumferential direction of a disk and measuring time intervals between servo sectors. The method also includes determining in which zone of a plurality of preset zones each of the measured time intervals is included. Moreover, the method also includes determining variations in time intervals from the zones of a plurality of previous time intervals, and modifying timing for servo-sector detection if variations in time intervals are within a preset range.

摘要翻译： 一种用于磁盘驱动器中的伺服数据检测的定时控制的方法。 该方法包括检索在盘的圆周方向上离散布置的多个伺服扇区，并测量伺服扇区之间的时间间隔。 该方法还包括确定多个预设区域的哪个区域包括测量的时间间隔。 此外，该方法还包括确定来自多个先前时间间隔的区域的时间间隔的变化，以及如果时间间隔的变化在预设范围内，则修改伺服扇区检测的定时。

公开(公告)号：US06864656B2

公开(公告)日：2005-03-08

申请号：US10633720

申请日：2003-08-05

申请人： Jiro Abe ,  Yosuke Hamada

发明人： Jiro Abe ,  Yosuke Hamada

IPC分类号： G11B21/08 ,  G11B5/55 ,  G11B21/02 ,  H02P5/40

CPC分类号： G11B5/553 ,  G11B5/5547

摘要： A magnetic disk drive that drives and positions an actuator using a voice coil motor, includes a current sensing resistor connected in series to a terminal on current input side of the voice coil motor, a first operational amplifier and a second operational amplifier. The magnetic disk drive further includes one of a third operational amplifier and a microcomputer.

摘要翻译： 使用音圈电机驱动和定位致动器的磁盘驱动器包括与音圈电动机的电流输入侧的端子串联的电流检测电阻器，第一运算放大器和第二运算放大器。 磁盘驱动器还包括第三运算放大器和微计算机之一。

公开(公告)号：US5986845A

公开(公告)日：1999-11-16

申请号：US823837

申请日：1997-03-25

申请人： Takashi Yamaguchi ,  Katsuhiro Tsuneta ,  Katsumoto Onoyama ,  Tsuyoshi Arai ,  Yoshikatsu Fujii ,  Hidehiko Numasato ,  Yosuke Hamada ,  Masahito Kobayashi

发明人： Takashi Yamaguchi ,  Katsuhiro Tsuneta ,  Katsumoto Onoyama ,  Tsuyoshi Arai ,  Yoshikatsu Fujii ,  Hidehiko Numasato ,  Yosuke Hamada ,  Masahito Kobayashi

IPC分类号： G11B21/10 ,  G11B5/596 ,  G11B19/04 ,  G11B21/02

CPC分类号： G11B5/59605 ,  G11B19/04

摘要： An apparatus for positioning a magnetic head includes a servo signal detection circuit for detecting a servo signal recorded on a magnetic disk in a predetermined first period, an acceleration measuring portion which is fitted to a part of a mechanism for mounting a magnetic head, outputs an acceleration signal in a direction of positioning the magnetic head, and samples the acceleration signal in a second period shorter than the first period, a comparison processing portion for comparing a deviation value computed from at least either one of the acceleration signal and the servo signal with a predetermined value, a write inhibit signal generating portion for generating a signal inhibiting write of data on a magnetic disk in accordance with the result of comparison in the comparison processing portion, and a manipulated variable compensation portion for generating manipulated variable for adjusting the position of the magnetic head from at least either one of the servo signal and the acceleration signal and a target value of the position of the magnetic head, whereby to prevent erroneous write operation of data onto a magnetic disk due to unsteady positioning error of the magnetic head.

摘要翻译： 用于定位磁头的装置包括：伺服信号检测电路，用于在预定的第一时段内检测记录在磁盘上的伺服信号;加速度测量部分，其安装在用于安装磁头的机构的一部分上， 加速度信号，并且在比第一期间短的第二期间对加速度信号进行采样，比较处理部，将从加速度信号和伺服信号中的至少一个计算的偏差值与 写入禁止信号产生部分，用于根据比较处理部分中的比较结果产生禁止在磁盘上写入数据的信号;以及操作变量补偿部分，用于产生用于调整位置的位置的调节变量 来自伺服信号和a中的至少一个的磁头 加速信号和磁头的位置的目标值，由此由于磁头的不稳定的定位误差而导致数据在磁盘上的错误写入操作。

公开(公告)号：US07872826B2

公开(公告)日：2011-01-18

申请号：US11588863

申请日：2006-10-27

申请人： Sumie Takeda ,  Katsumoto Onoyama ,  Yosuke Hamada ,  Hiroyuki Oosawa

发明人： Sumie Takeda ,  Katsumoto Onoyama ,  Yosuke Hamada ,  Hiroyuki Oosawa

IPC分类号： G11B19/02 ,  G11B15/04

CPC分类号： G11B19/04 ,  G11B5/40

摘要： Embodiments in accordance with the present invention provide a disk storage device and a control method for the disk storage device, which are capable of precluding an off-track write resulted from stick-slip caused by thermal distortion. A magnetic disk device is provided with a magnetic disk, a head that makes a writing to the magnetic disk, and a temperature sensor that detects the temperature inside of the magnetic disk device. Moreover, the magnetic disk device 1 changes determination requirements for use to make a determination whether or not to prohibit the writing by the head to the magnetic disk based on a measurement temperature detected by the temperature sensor and an amount of temperature change calculated using the measurement temperature.

摘要翻译： 根据本发明的实施例提供一种用于盘存储装置的盘存储装置和控制方法，其能够排除由热失真引起的粘滑现象造成的偏离轨迹写入。 磁盘装置设置有磁盘，对磁盘进行写入的磁头以及检测磁盘装置内的温度的温度传感器。 此外，磁盘装置1改变用于确定是否基于由温度传感器检测的测量温度和使用该测量计算的温度变化量来禁止磁头对磁盘的写入的确定要求 温度。