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：US5189578A

公开(公告)日：1993-02-23

申请号：US543425

申请日：1990-06-26

申请人： Kenji Mori ,  Hiromu Hirai ,  Haruaki Otsuki ,  Tsuyoshi Takahashi ,  Jun Naruse ,  Yuji Nishimura ,  Muneo Kawamoto

发明人： Kenji Mori ,  Hiromu Hirai ,  Haruaki Otsuki ,  Tsuyoshi Takahashi ,  Jun Naruse ,  Yuji Nishimura ,  Muneo Kawamoto

IPC分类号： G11B5/55 ,  G11B5/58 ,  G11B7/085 ,  G11B7/09 ,  G11B7/12 ,  G11B11/105 ,  G11B19/20 ,  G11B21/08 ,  G11B21/10

CPC分类号： G11B19/20 ,  G11B11/10552 ,  G11B11/10567 ,  G11B11/10576 ,  G11B11/1058 ,  G11B21/08 ,  G11B21/106 ,  G11B5/5552 ,  G11B5/5565 ,  G11B5/58 ,  G11B7/0857 ,  G11B7/0946 ,  G11B7/122 ,  G11B5/4873

摘要： A magnetic disk system utilizes both of voice coil motor and a piezoelectric element provided on a head supporting arm to precisely position a head to a predetermined position on a disk. The piezoelectric element is built in the distal end portion of the head supporting arm and is restricted in respect of its movement by a resilient mechanism which has low rigidity in the driving direction of the piezoelectric element and high rigidity in the other directions. The resilient mechanism is formed by pairs of doubled parallel leaf springs so arranged that each pair is disposed on either side of the piezoelectric element.

摘要翻译： 磁盘系统利用设置在头部支撑臂上的音圈电动机和压电元件来精确地将磁头定位在盘上的预定位置。 压电元件内置在头部支撑臂的远端部分中，并且通过弹性机构限制其运动，该弹性机构在压电元件的驱动方向上具有低刚度并且在其它方向上具有高刚度。 弹性机构由成对的双平行板簧形成，使得每一对布置在压电元件的任一侧上。

公开(公告)号：US4418305A

公开(公告)日：1983-11-29

申请号：US292802

申请日：1981-08-14

申请人： Haruaki Otsuki ,  Hiromu Hirai

发明人： Haruaki Otsuki ,  Hiromu Hirai

IPC分类号： G05D3/12 ,  G05B19/23 ,  G05B5/01

CPC分类号： G05B19/232 ,  G05B2219/37313

摘要： A velocity feedback circuit for a position servomechanism operative to control the position of a controlled object on the basis of the signal indicative of the difference between the position error and the velocity fed back to the input, wherein a velocity calculating circuit is provided to calculate the velocity to be fed back to the input of the position servomechanism on the basis of the relation between the time required for the controlled variable of the controlled object to make a predetermined change and the predetermined change of the controlled variable.

摘要翻译： 一种用于位置伺服机构的速度反馈电路，其基于指示位置误差和反馈到输入的速度之间的差异的信号来控制受控对象的位置，其中提供速度计算电路以计算 基于受控对象的受控变量进行预定变化所需的时间与受控变量的预定变化之间的关系，将速度反馈到位置伺服机构的输入。

公开(公告)号：US5229896A

公开(公告)日：1993-07-20

申请号：US780783

申请日：1991-10-23

申请人： Souichi Tohyama ,  Hiromu Hirai ,  Haruaki Otsuki ,  Yoosuke Hamada

发明人： Souichi Tohyama ,  Hiromu Hirai ,  Haruaki Otsuki ,  Yoosuke Hamada

IPC分类号： G05B17/02 ,  G05D3/12 ,  G11B21/08 ,  G11B21/10

CPC分类号： G11B21/083

摘要： A disk drive has a data recording medium disk, a head disposed facing a recording surface of the disk, for reading and writing data, a positioning mechanism for supporting and moving the head, a position detector for detecting the position of the head and outputting a position detection signal, and a control unit for processing the position detection signal and outputting a position control signal to the positioning mechanism. The control unit calculates a target acceleration signal for a given target track so as to make a turnaround frequency of a frequency component of the target acceleration signal coincident with a resonance frequency of the head positioning mechanism, calculates a target position for a head positioning operation in accordance with the target acceleration signal, calculates a position command value by inputting the target position signal to a model (inverse model) of an approximate inverse system to a position control system which includes the head positioning mechanism and the position detector, and outputs a position tracking error to the positioning mechanism, the position tracking error being the difference between the position command value and the position detection signal of the head.

摘要翻译： 磁盘驱动器具有数据记录介质盘，朝向盘的记录表面设置的用于读取和写入数据的头，用于支撑和移动头部的定位机构，用于检测头部的位置并输出 位置检测信号，以及用于处理位置检测信号并向定位机构输出位置控制信号的控制单元。 控制单元计算用于给定目标轨道的目标加速度信号，以使目标加速度信号的频率分量的周转频率与头部定位机构的共振频率一致，计算头部定位操作的目标位置 根据目标加速度信号，通过将目标位置信号输入到包括头部定位机构和位置检测器的位置控制系统的近似逆系统的模型（逆模型）来计算位置指令值，并且输出位置 定位机构的跟踪误差，位置跟踪误差是位置指令值与头部位置检测信号之间的差值。