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    • 45. 发明授权
    • Disk drive employing iterative learning control for tuning seek servo loop
    • 采用迭代学习控制的磁盘驱动器,用于调谐寻道伺服环路
    • US07626782B1
    • 2009-12-01
    • US12178512
    • 2008-07-23
    • Jie YuKuang-Yang TuYoung-Hoon KimWei Xi
    • Jie YuKuang-Yang TuYoung-Hoon KimWei Xi
    • G11B5/596
    • G11B5/59627G11B5/5534G11B5/5547
    • A disk drive is disclosed operable to seek a head from a first radial location over a disk to a second radial location over the disk. A reference signal is initialized, a feed-forward control signal is initialized, and a seek is initiated. During the seek operation, a position error signal (PES) is generated and saved, wherein the PES represents a position error of the head relative to the reference signal. The PES is filtered with a compensation filter to generate a feed-back control signal. The feed-back control signal is combined with the feed-forward control signal to generate a VCM control signal. When the seek is done, the saved PES is processed using an iterative learning control (ILC) algorithm to adjust at least one of the reference signal and the feed-forward control signal.
    • 公开了一种磁盘驱动器,其可操作以从磁盘上的第一径向位置到盘上的第二径向位置寻找磁头。 初始化参考信号,初始化前馈控制信号,并启动寻道。 在寻道操作期间,产生并保存位置误差信号(PES),其中PES表示头相对于参考信号的位置误差。 用补偿滤波器对PES进行滤波以产生反馈控制信号。 反馈控制信号与前馈控制信号组合以产生VCM控制信号。 当搜索完成时,使用迭代学习控制(ILC)算法处理保存的PES,以调整参考信号和前馈控制信号中的至少一个。
    • 46. 发明授权
    • Method and apparatus for estimating micro-actuator stroke sensitivity in a hard disk drive
    • 用于估计硬盘驱动器中的微执行器行程灵敏度的方法和装置
    • US07576940B2
    • 2009-08-18
    • US11329724
    • 2006-01-10
    • Dong Jun LeeYoung-Hoon KimVinod SharmaHyung Jai Lee
    • Dong Jun LeeYoung-Hoon KimVinod SharmaHyung Jai Lee
    • G11B5/596
    • G11B5/5552G11B5/596
    • Method of estimating the stroke sensitivity of micro-actuator coupled with slider and its read-write head. Micro-actuator stimulus signal used to drive micro-actuator, inducing noise into lateral positioning of read-write head near track by voice coil motor to create PES. Lateral position noise derived from Position Error Signal. Stroke sensitivity estimated from lateral position noise and micro-actuator stimulus signal. Apparatus supporting method estimating stroke sensitivity: servo controller, embedded circuit including servo-controller, and hard disk drive may include servo-controller and/or embedded circuit. Method making servo-controller, embedded circuit, and/or hard disk drive. Servo-controller, embedded circuit, and hard disk drive are products of these processes.
    • 估计微型执行器与滑块及其读写头耦合的行程灵敏度的方法。 微执行器激励信号用于驱动微执行器,引起噪声进入侧面定位的读写头靠近轨道的音圈电机产生PES。 从位置误差信号导出的侧向位置噪声。 从横向位置噪声和微致动器刺激信号估计行程灵敏度。 伺服控制器,包括伺服控制器和硬盘驱动器在内的嵌入式电路的装置支持方法可以包括伺服控制器和/或嵌入式电路。 制作伺服控制器,嵌入式电路和/或硬盘驱动器的方法。 伺服控制器,嵌入式电路和硬盘驱动器都是这些过程的产物。
    • 50. 发明申请
    • Impeller for fuel pumps
    • 燃油泵叶轮
    • US20060228207A1
    • 2006-10-12
    • US11450825
    • 2006-06-09
    • Se-Dong BaekJae-Seung ParkYoung-Hoon KimSung-Uk Chang
    • Se-Dong BaekJae-Seung ParkYoung-Hoon KimSung-Uk Chang
    • F04D5/00
    • F04D29/188Y10S416/02
    • A fuel pump for a vehicle comprises: a driving motor; an impeller having a substantially circular shape, the impeller being rotatable by operation of the driving motor; and a pump casing covered with a casing cover, the pump casing and casing cover together defining a central cavity for receiving the impeller rotatable therein, the pump casing and casing cover including a fuel inlet port and a fuel outlet port, the pump casing and casing cover each further including a circular groove formed along the surface thereof in respective fluid communication with the central cavity of the pump casing and casing cover. The impeller includes a plurality blades of generally V-shape cross-section disposed along an outer surface of the impeller with a plurality of blade grooves defined between the blades, the blade grooves in fluid communication with respective circular groove of the pump casing and casing cover, wherein each of the blades includes a fuel inlet blade portion disposed at an inner area of the blade grooves and a fuel outlet blade portion disposed at an outer area of the blade grooves, with a boundary portion disposed between the fuel inlet blade portion and the fuel outlet blade portion, in which a front surface angle and a rear surface angle of each of the fuel inlet blade portion and the fuel outlet blade portion respectively varies relative to the length of each of the blades.
    • 一种用于车辆的燃料泵包括:驱动电动机; 具有大致圆形形状的叶轮,所述叶轮可通过所述驱动马达的操作旋转; 以及一个覆盖有壳体盖的泵壳体,泵壳体和壳体罩盖共同限定一个用于容纳可旋转的叶轮的中心空腔,泵壳体和壳体盖包括燃料入口和燃料出口,泵壳体和壳体 每个进一步包括包括沿其表面形成的圆形槽,其与泵壳体和壳体盖的中心腔分别流体连通。 叶轮包括沿着叶轮的外表面设置的大致V形截面的多个叶片,其中限定在叶片之间的多个叶片槽,与泵壳体的相应圆形槽流体连通的叶片槽和壳体盖 其中每个叶片包括设置在叶片槽的内部区域的燃料入口叶片部分和设置在叶片槽的外部区域处的燃料出口叶片部分,边界部分设置在燃料入口叶片部分和 燃料出口叶片部分,其中每个燃料入口叶片部分和燃料出口叶片部分的前表面角和后表面角分别相对于每个叶片的长度变化。