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    • 1. 发明申请
    • Method of controlling an actuator, and disk apparatus using the same method
    • 使用相同方法控制致动器和盘装置的方法
    • US20060279872A1
    • 2006-12-14
    • US11451803
    • 2006-06-13
    • Makoto UmedaYoshihiro UenoToshio InajiHideki Kuwajima
    • Makoto UmedaYoshihiro UenoToshio InajiHideki Kuwajima
    • G11B21/02
    • G11B21/12G11B5/54G11B21/22
    • A disk apparatus includes (a) an actuator having a head supporting arm with a tab formed on the arm and a voice coil fixed to the arm, which arm is rotatable on a horizontal rotary shaft as well as on a vertical rotary shaft, (b) a voice coil motor having an upper yoke with a magnet fixed to the upper yoke and a lower yoke sandwiching and confronting the voice coil, and (c) a ramp section guiding and holding the tab at a refuge place. When the actuator at the refuge place starts loading with a starter command, a pulsed driving current is applied to the voice coil temporarily for urging the tab against a tab-holding plane of the ramp section, thereby making use of repulsion force generated on the actuator, so that the tab can leave the refuge place efficiently for carrying out the loading operation.
    • 一种盘装置包括:(a)具有头部支撑臂的致动器,其具有形成在臂上的突片和固定到臂的音圈,该臂可在水平旋转轴以及垂直旋转轴上旋转,(b )具有上磁轭的音圈电动机,其具有固定到上磁轭的磁体,以及夹住并面对音圈的下磁轭,以及(c)在避难场所引导并保持凸片的斜面部分。 当避难所的致动器开始加载起动器命令时,临时地向音圈施加脉冲驱动电流,以将突片推向斜坡部分的突片保持平面,从而利用在致动器上产生的排斥力 ,使得标签可以有效地离开避难所进行装载操作。
    • 2. 发明授权
    • Method of controlling an actuator, and disk apparatus using the same method
    • 使用相同方法控制致动器和盘装置的方法
    • US07265929B2
    • 2007-09-04
    • US11451803
    • 2006-06-13
    • Makoto UmedaYoshihiro UenoToshio InajiHideki Kuwajima
    • Makoto UmedaYoshihiro UenoToshio InajiHideki Kuwajima
    • G11B21/02
    • G11B21/12G11B5/54G11B21/22
    • A disk apparatus includes (a) an actuator having a head supporting arm with a tab formed on the arm and a voice coil fixed to the arm, which arm is rotatable on a horizontal rotary shaft as well as on a vertical rotary shaft, (b) a voice coil motor having an upper yoke with a magnet fixed to the upper yoke and a lower yoke sandwiching and confronting the voice coil, and (c) a ramp section guiding and holding the tab at a refuge place. When the actuator at the refuge place starts loading with a starter command, a pulsed driving current is applied to the voice coil temporarily for urging the tab against a tab-holding plane of the ramp section, thereby making use of repulsion force generated on the actuator, so that the tab can leave the refuge place efficiently for carrying out the loading operation.
    • 一种盘装置包括:(a)具有头部支撑臂的致动器,其具有形成在臂上的突片和固定到臂的音圈,该臂可在水平旋转轴以及垂直旋转轴上旋转,(b )具有上磁轭的音圈电动机,其具有固定到上磁轭的磁体,以及夹住并面对音圈的下磁轭,以及(c)在避难场所引导并保持凸片的斜面部分。 当避难所的致动器开始加载起动器命令时,临时地向音圈施加脉冲驱动电流,以将突片推向斜坡部分的突片保持平面,从而利用在致动器上产生的排斥力 ,使得标签可以有效地离开避难所进行装载操作。
    • 3. 发明授权
    • Head positioner and information recording/replaying apparatus
    • 头部定位器和信息记录/重放装置
    • US07031099B2
    • 2006-04-18
    • US10206591
    • 2002-07-29
    • Hiroshi KohsoHideki KuwajimaToshio Inaji
    • Hiroshi KohsoHideki KuwajimaToshio Inaji
    • G11B5/596
    • G11B21/085G11B5/4826G11B5/5552G11B5/596G11B21/106G11B21/18
    • A head positioner has a configuration employing a dual-stage actuator method, wherein positioning control is performed for a write/read according to cooperative operations of a coarse actuator and a fine actuator, and the fine actuator is configured using a piezoelectric device. A positioning control unit for controlling the coarse actuator and the fine actuator is configured to include a coarse control system including a coarse drive unit for driving the coarse actuator and coarse control unit for controlling the coarse drive unit, a fine control system including a fine drive unit for driving the fine actuator and a fine control unit for controlling the fine drive unit. In addition, a driving-signal limiting unit is provided. The piezoelectric device is prone to property deterioration because of erosion due to an electrochemical reaction. The driving-signal limiting unit limits the level of a fine control signal fed from the fine control unit to the fine drive unit to be below a threshold at which property deterioration of the piezoelectric device is caused by an electrochemical reaction. Further, as a median-value signal, a relative displacement signal ranked in the center of a plurality of relative displacement signals sent from a plurality of the individual fine actuators is selected. The coarse actuator is controlled according to the selected median-value signal.
    • 头部定位器具有采用双级致动器方法的结构,其中根据粗略致动器和精细致动器的协同操作执行写入/读取的定位控制,并且精细致动器使用压电装置构造。 一种用于控制粗动作装置和精细致动器的定位控制装置,其特征在于,包括:粗动控制系统,包括用于驱动粗动作器的粗驱动装置和用于控制粗驱动装置的粗动控制装置;精细控制装置, 用于驱动精细致动器的单元和用于控制精细驱动单元的精细控制单元。 另外,提供了驱动信号限制单元。 由于电化学反应引起的侵蚀,压电元件容易发生特性劣化。 驱动信号限制单元将从精细控制单元馈送到精细驱动单元的精细控制信号的电平限制在低于由电化学反应引起压电器件的性能劣化的阈值。 此外,作为中值信号,选择从多个各个精细致动器发送的多个相对位移信号的中心的相对位移信号。 根据所选择的中值信号控制粗调执行器。
    • 9. 发明授权
    • Head drive device including head support mechanism having support arm rotatable relative to base arm via rotation support part, and disk apparatus including the head drive device
    • 头部驱动装置,包括头部支撑机构,其具有通过旋转支撑部分相对于基部臂可旋转的支撑臂,以及包括头部驱动装置的盘装置
    • US07265945B2
    • 2007-09-04
    • US10514889
    • 2003-06-10
    • Yoshihiro UenoHideki Kuwajima
    • Yoshihiro UenoHideki Kuwajima
    • G11B5/60G11B21/21
    • G11B5/4833
    • A head support mechanism of the invention comprises a head (1011) for recording on a disk or reproducing a disk, a head support member composed of this head (1011) and a support arm (2) having this head (1011) attached to one end portion thereof, a base arm (12) including a rotation support part (11) for supporting the head support member rotatably in a direction perpendicular to the surface of the disk, and an elastic member (4) of which one end portion is connected to other end portion of the support arm (2) and other end portion is connected to the base arm (12) for thrusting the head support member in the disk direction. Therefore, the support arm (2) can be formed of a member of high rigidity, and the slider (1) is prevented from colliding against the disk if an impact force acts from outside.
    • 本发明的头部支撑机构包括用于在盘上记录或再现盘的头部(1011),由该头部(1011)组成的头部支撑构件和具有附接到一个头部的头部(1011)的支撑臂(2) 一个基部臂(12),它包括一个旋转支撑部分(11),用于在与盘的表面垂直的方向上可旋转地支撑头部支撑构件;以及一个端部连接的弹性构件 到支撑臂(2)的另一端部,另一端部连接到基部臂(12),用于沿盘方向推压头部支撑构件。 因此,支撑臂(2)可以由高刚性的构件形成,并且如果冲击力从外部作用,则防止滑块(1)与盘碰撞。