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    • 1. 发明授权
    • Optical information system to detect reflection of pit depth by
evanescent wave
    • 光信息系统通过ev逝波检测凹坑深度的反射
    • US5602819A
    • 1997-02-11
    • US503593
    • 1995-07-18
    • Tatsuhiko InagakiHiroshi KohsoMakoto Kuwamoto
    • Tatsuhiko InagakiHiroshi KohsoMakoto Kuwamoto
    • G11B11/10G11B5/55G11B5/58G11B7/005G11B7/013G11B7/12G11B7/135G11B11/105G11B13/04G11B5/68
    • G11B7/24085G11B13/04G11B5/55G11B5/58G11B7/0052G11B7/12G11B7/1387
    • The information recording and reproducing apparatus includes: a recording medium including a plurality of concavo-convex pits; a light source for emitting laser light; a section for changing an optical characteristic value of the laser light, using interaction between the laser light and the recording medium; and a light detector for detecting the optical characteristic value of the laser light after the interaction occurs, and then outputting a signal in response to the detected optical characteristic value. The section for changing the optical characteristic value includes an evanescent wave generating section for generating an evanescent wave from the laser light. The evanescent wave generating section changes the optical characteristic value in accordance with how much the concavo-convex pits of the recording medium influences the evanescent wave. Multivalued data is reproduced on the basis of the signal from the light detector. The multivalued data corresponds to the dimension of the concavo-convex pits measured along the direction normal to the recording medium.
    • 信息记录和再现装置包括:包括多个凹凸坑的记录介质; 用于发射激光的光源; 使用激光与记录介质之间的相互作用来改变激光的光学特性值的部分; 以及光检测器,用于在相互作用发生之后检测激光的光学特性值,然后响应于检测到的光学特性值输出信号。 用于改变光学特征值的部分包括用于从激光产生ev逝波的ev逝波产生部分。 ev逝波产生部根据记录介质的凹凸多少影响ev逝波而改变光学特性值。 基于来自光检测器的信号再现多值数据。 多值数据对应于沿垂直于记录介质的方向测量的凹凸坑的尺寸。
    • 4. 发明授权
    • Information recording and reproducing device and a method using the same
    • 信息记录和再现装置及其使用方法
    • US5463609A
    • 1995-10-31
    • US139573
    • 1993-10-20
    • Tatsuhiko InagakiHiroshi KohsoMakoto Kuwamoto
    • Tatsuhiko InagakiHiroshi KohsoMakoto Kuwamoto
    • G11B11/10G11B5/55G11B5/58G11B7/005G11B7/013G11B7/12G11B7/135G11B11/105G11B13/04G11B5/68
    • G11B7/24085G11B13/04G11B5/55G11B5/58G11B7/0052G11B7/12G11B7/1387
    • The information recording and reproducing apparatus includes: a recording medium including a plurality of concavo-convex pits; a light source for emitting laser light; a section for changing an optical characteristic value of the laser light, using interaction between the laser light and the recording medium; and a light detector for detecting the optical characteristic value of the laser light after the interaction occurs, and then outputting a signal in response to the detected optical characteristic value. The section for changing the optical characteristic value includes an evanescent wave generating section for generating an evanescent wave from the laser light. The evanescent wave generating section changes the optical characteristic value in accordance with how much the concavo-convex pits of the recording medium influences the evanescent wave. Multivalued data is reproduced on the basis of the signal from the light detector. The multivalued data corresponds to the dimension of the concavo-convex pits measured along the direction normal to the recording medium.
    • 信息记录和再现装置包括:包括多个凹凸坑的记录介质; 用于发射激光的光源; 使用激光与记录介质之间的相互作用来改变激光的光学特性值的部分; 以及光检测器,用于在相互作用发生之后检测激光的光学特性值,然后响应于检测到的光学特性值输出信号。 用于改变光学特征值的部分包括用于从激光产生ev逝波的ev逝波产生部分。 ev逝波产生部根据记录介质的凹凸多少影响ev逝波而改变光学特性值。 基于来自光检测器的信号再现多值数据。 多值数据对应于沿垂直于记录介质的方向测量的凹凸坑的尺寸。
    • 5. 发明授权
    • Information recording/reproducing apparatus and method
    • 信息记录/再现装置和方法
    • US06496323B1
    • 2002-12-17
    • US09381443
    • 1999-09-20
    • Yoshio UmedaHiroshi KohsoTatsuhiko InagakiToshiyuki WadaMakoto Kuwamoto
    • Yoshio UmedaHiroshi KohsoTatsuhiko InagakiToshiyuki WadaMakoto Kuwamoto
    • G11B5596
    • G11B5/553G11B5/5582
    • To improve the positioning accuracy which has been limited so far due to a vibration mode of an actuator for positioning a head and increase the capacity of an apparatus by raising the density of tracks for recording or reproducing information. There are provided an information recording/reproducing medium, a head for recording or reproducing information while moving relatively to the information recording/reproducing medium, an actuator for supporting the head and movable in accordance with a command, and a control section for supplying a command to the actuator in accordance with a signal reproduced by the head to control the movement of the actuator, the actuator has at least one vibration mode in addition to a movement mode as a rigid body, and the control section is configured by an internal model including at least one vibration mode of the actuator and has a state estimating section for estimating quantities of states of the vibration mode and rigid-body mode of the actuator in accordance with a controlled variable corresponding to a movement command to the actuator and a controlled-variable generating section for generating a controlled variable in accordance with each estimated quantity of state estimated by the state estimating section.
    • 为了提高由于用于定位头部的致动器的振动模式到目前为止被限制的定位精度,并且通过提高用于记录或再现信息的轨道的密度来增加设备的容量。提供了一种信息记录/再现 介质,用于在相对于信息记录/再现介质移动时记录或再现信息的磁头,用于支撑磁头并根据命令可移动的致动器,以及用于根据信号向致动器提供命令的控制部分 由头部再现以控制致动器的运动,致动器除了作为刚体的运动模式之外还具有至少一个振动模式,并且控制部分由内部模型构成,该内部模型包括致动器的至少一个振动模式,以及 具有用于根据执行器的振动模式和刚体模式的状态估计量的状态估计部分 对应于对致动器的移动指令的控制变量的控制变量生成部,以及根据由状态估计部估计出的各个估计状态量来生成受控变量的受控变量生成部。
    • 7. 发明授权
    • Casing of a magnetic recording and reproducing apparatus having rails
for detachable mounting to a computer
    • 具有用于可拆卸地安装到计算机的轨道的磁记录和再现装置的壳体
    • US5657182A
    • 1997-08-12
    • US975631
    • 1992-11-13
    • Makoto KuwamotoMichiro TanakaHiroshi KohsoYuji Yagi
    • Makoto KuwamotoMichiro TanakaHiroshi KohsoYuji Yagi
    • G11B25/04G11B33/12G11B17/02
    • G11B33/121G11B25/043
    • A magnetic recording and reproducing apparatus comprising: a magnetic recording and reproducing medium; a spindle motor for effecting rotational drive of the magnetic recording and reproducing medium; a transducer for recording and reproducing information on one face of the magnetic recording and reproducing medium; a displacement member for displacing the transducer to an arbitrary radial position on the face of the magnetic recording and reproducing medium; an electric circuit board for processing the information and controlling the spindle motor and the displacement member; and a casing in which the magnetic recording and reproducing medium, the spindle motor, the transducer, the displacement member and the electric circuit board are mounted; the casing having a bottom wall such that a boxlike space is defined below the bottom wall; the electric circuit board being disposed in the boxlike space.
    • 一种磁记录和再现装置,包括:磁记录和再现介质; 用于实现磁记录和再现介质的旋转驱动的主轴电机; 用于在磁记录和再现介质的一个面上记录和再现信息的换能器; 位移构件,用于将所述换能器移位到所述磁记录和再现介质的表面上的任意径向位置; 用于处理信息并控制主轴电机和位移构件的电路板; 以及其中安装有磁记录和再现介质,主轴电机,换能器,位移构件和电路板的壳体; 所述壳体具有底壁,使得在所述底壁的下方形成盒状空间; 电路板设置在盒状空间中。
    • 9. 发明授权
    • Magnetic head suspension united support arm with ribbed cut-out
    • 磁头悬挂联合支撑臂与肋切口
    • US5313353A
    • 1994-05-17
    • US918962
    • 1992-07-24
    • Hiroshi KohsoMakoto KuwamotoMichiro Tanaka
    • Hiroshi KohsoMakoto KuwamotoMichiro Tanaka
    • G11B21/21G11B5/48G11B21/16
    • G11B5/4833G11B21/16
    • A magnetic head slider support device is provided for use in a magnetic disc apparatus. The device comprises a magnetic head, a head slider having the magnetic head, a support arm portion which supports the head slider, and a gimbal spring fixed to a forward end of the support arm portion to attach the head slider. The support arm portion includes a load beam support portion for supporting the head slider and gimbal spring. A load beam plate spring portion applies a force to the head slider, towards a recording surface. A pivotal support arm portion has a pivotal movement center, about which the device pivots. The pivotal movement center pivotally supports the load beam support portion and the load beam plate spring portion at the rear of the support arm portion. The load beam support portion, the load beam plate spring portion and the pivotal support arm portion are formed from a single piece of material of constant thickness. The pivotal support arm portion has a flat face and a side face. The side face has a rib formed by folding a part of the flat face approximately perpendicular to the remainder of the flat face. A cut-out portion having a rib is formed in the flat face. The cut-out portion has first and second sides. The first side is closer to the pivotal movement center than the second side, and is smaller than the second side.
    • 提供磁头滑动器支撑装置用于磁盘装置。 该装置包括磁头,具有磁头的磁头滑动器,支撑磁头滑块的支撑臂部分和固定到支撑臂部分的前端以附接磁头滑动器的万向弹簧。 支撑臂部分包括用于支撑磁头滑块和万向节弹簧的负载梁支撑部分。 负载梁板弹簧部分向磁头滑块朝向记录表面施加力。 枢转支撑臂部分具有枢转运动中心,设备围绕该枢转运动中心枢转。 枢转运动中心在支撑臂部分的后部枢转地支撑负载梁支撑部分和负载梁板弹簧部分。 负载梁支撑部分,负载梁板弹簧部分和枢转支撑臂部分由恒定厚度的单件材料形成。 枢转支撑臂部分具有平坦的面和侧面。 侧面具有通过将平坦表面的一部分大致垂直于平坦表面的其余部分折叠而形成的肋。 具有肋的切口部分形成在平面中。 切口部分具有第一和第二侧面。 第一侧比第二侧更靠近枢转运动中心,并且小于第二侧。
    • 10. 发明授权
    • Disk apparatus and head positioning method
    • 磁盘设备和磁头定位方法
    • US06982848B2
    • 2006-01-03
    • US10852135
    • 2004-05-25
    • Toshio InajiKeizo MiyataHiroshi KohsoMakoto Umeda
    • Toshio InajiKeizo MiyataHiroshi KohsoMakoto Umeda
    • G11B5/596G11B21/02
    • G11B5/596G11B5/5582G11B21/106
    • A disk apparatus includes: an actuator 7; a driver 10; a voltage detector 11 for outputting first voltage signal Ed which is produced in a driving coil 5 of the actuator 7; a voltage signal adjuster 16 for outputting pseudo disturbance signal ur and generating second voltage signal Ed+ from pseudo disturbance signal ur, driving signal u, first voltage signal Ed, and disturbance estimation signal τdest; a disturbance estimator 12 for estimating the magnitude of disturbance load τd applied to a magnetic head 2 from driving signal u and second voltage signal Ed+ to output disturbance estimation signal τdest; a position detector 13 for generating position error signal e which corresponds to a current position of the magnetic head 2; a position controller 14 for generating control signal c from position error signal e; and a corrector 15 for generating driving signal u from disturbance estimation signal τdest and position control signal c.
    • 盘装置包括:致动器7; 司机10; 用于输出在致动器7的驱动线圈5中产生的第一电压信号Ed的电压检测器11; 用于从伪干扰信号ur输出伪干扰信号ur并产生第二电压信号Ed + SUP的电压信号调节器16,驱动信号u,第一电压信号Ed和干扰估计信号taud < / SUB>; 用于估计从驱动信号u和第二电压信号Ed + SUP施加到磁头2的干扰负载taud的大小的干扰估计器12,以输出干扰估计信号taud < 用于产生对应于磁头2的当前位置的位置误差信号e的位置检测器13; 位置控制器14,用于从位置误差信号e产生控制信号c; 以及用于从干扰估计信号taud和/或位置控制信号c产生驱动信号u的校正器15。