公开(公告)号：US06703603B2

公开(公告)日：2004-03-09

申请号：US09996698

申请日：2001-11-30

申请人： Souichi Tohyama ,  Hiromu Hirai ,  Kichio Nakajima ,  Atsushi Sakamoto ,  Yaichi Okubo ,  Masahiro Oishi

发明人： Souichi Tohyama ,  Hiromu Hirai ,  Kichio Nakajima ,  Atsushi Sakamoto ,  Yaichi Okubo ,  Masahiro Oishi

IPC分类号： H01J4014

CPC分类号： G02B26/105 ,  G02B7/1821 ,  H05K3/0026

摘要： A controller for an optical scanner includes a mirror angle detecting unit for detecting an angle of a mirror, a rotation shaft angle detecting unit for detecting an angle of the shaft, a current detecting unit for detecting a current supplied to a motor, and a torsional vibration stabilizing compensation unit for stabilizing a torsional vibration of the shaft, thereby a value subjected to a proportional compensation and a differential compensation by using a rotation shaft angle detected value and a value from the torsional vibration stabilizing compensation unit are negatively fed back to a value obtained by integrally compensating for a tracking error between the angle desired value and a mirror angle detection value to determine a current value to be supplied to the motor.

摘要翻译： 光学扫描器的控制器包括用于检测反射镜的角度的反射镜角度检测单元，用于检测轴的角度的旋转轴角度检测单元，检测供给马达的电流的电流检测单元， 用于稳定轴的扭转振动的振动稳定补偿单元，由此通过使用旋转轴角度检测值和来自扭转振动稳定补偿单元的值进行比例补偿和差分补偿的值被负反馈回到值 通过整体补偿角度期望值和镜像角度检测值之间的跟踪误差来确定要提供给电动机的电流值而获得。

公开(公告)号：US5164931A

公开(公告)日：1992-11-17

申请号：US682262

申请日：1991-04-08

申请人： Takashi Yamaguchi ,  Souichi Tohyama ,  Hiromu Hirai

发明人： Takashi Yamaguchi ,  Souichi Tohyama ,  Hiromu Hirai

IPC分类号： G11B21/10 ,  G05B19/23 ,  G05D3/12 ,  G11B7/085 ,  G11B21/08

CPC分类号： G05B19/232 ,  G11B21/083 ,  G11B7/08517 ,  G05B2219/42104

摘要： Method and apparatus for control of positioning of a recording/playback head or other controlled object. When a controlled object reaches the vicinity of a target position, the control system is switched from operation as a velocity control system to operation as a position control system. By using state variables of the controlled object at that time, coefficients corresponding to the detected state variables are determined from characteristics of the controlled object which are determined in advance. By using the determined coefficient values, initial values upon start of position control of the position control system are set, and positioning control is then carried out.

摘要翻译： 用于控制记录/重放头或其它受控对象的定位的方法和装置。 当受控对象到达目标位置附近时，控制系统作为速度控制系统从作为位置控制系统的操作切换。 通过使用该时刻的受控对象的状态变量，根据预先确定的受控对象的特性来确定与检测到的状态变量对应的系数。 通过使用确定的系数值，设置位置控制系统的位置控制开始时的初始值，然后进行定位控制。

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。