公开(公告)号：US07974045B2

公开(公告)日：2011-07-05

申请号：US11480339

申请日：2006-06-29

申请人： Hae-sung Kwon ,  Hyung Jai Lee

发明人： Hae-sung Kwon ,  Hyung Jai Lee

IPC分类号： G11B5/56

CPC分类号： G11B5/5552 ,  G11B5/4826 ,  G11B5/4873

摘要： Micro-actuator assembly including micro-actuator mount coupled to micro-actuator bridge to provide merged footprint with slider and micro-actuator bridge gap. Flexure finger including micro-actuator assembly for coupling to slider. Head gimbal assembly including flexure finger coupled to the slider. A head stack assembly including at least one of the head gimbal assemblies coupled to a head stack. Hard disk drive including head stack assembly. The invention includes manufacturing the micro-actuator assembly, the flexure finger, the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of the invention's manufacturing processes.

摘要翻译： 微致动器组件包括微执行器安装件，耦合到微执行器桥，以提供与滑块和微执行器桥接间隙的合并占地面积。 挠性手指包括用于联接到滑块的微致动器组件。 头万向节组件，包括连接到滑块的挠曲指。 一种头部堆叠组件，包括联接到头部堆叠的头部万向架组件中的至少一个。 硬盘驱动器，包括磁头堆栈组件。 本发明包括制造微致动器组件，挠曲指，头万向架组件，磁头组组件和硬盘驱动器，以及作为本发明的制造工艺的产品的这些项目。

公开(公告)号：US20100177443A1

公开(公告)日：2010-07-15

申请号：US12354601

申请日：2009-01-15

申请人： Vinod Sharma ,  Hyung Jai Lee

发明人： Vinod Sharma ,  Hyung Jai Lee

IPC分类号： G11B21/16

CPC分类号： G11B5/4826 ,  G11B5/4833 ,  G11B5/4873

摘要： Disclosed is a head gimbal assembly for a hard disk drive that includes a head pivotally connected to a flexure. The flexure has a longitudinal axis. The assembly includes first and second micro-actuators that are located between the flexure and the head and spaced from the longitudinal axis. By way of example, the first and second micro-actuators may be thin piezo-electric transducers. Control signals can be provided to the micro-actuators to vary the pitch and/or roll of the head.

摘要翻译： 公开了一种用于硬盘驱动器的头部万向架组件，其包括枢转地连接到挠曲件的头部。 挠曲具有纵向轴线。 组件包括第一和第二微致动器，其位于弯曲部和头部之间并且与纵向轴线间隔开。 作为示例，第一和第二微致动器可以是薄压电换能器。 可以向微致动器提供控制信号以改变头部的俯仰和/或滚动。

公开(公告)号：US07667932B2

公开(公告)日：2010-02-23

申请号：US11334623

申请日：2006-01-17

申请人： Hae-sung Kwon ,  Hyung Jai Lee

发明人： Hae-sung Kwon ,  Hyung Jai Lee

IPC分类号： G11B5/56

CPC分类号： G11B5/5556 ,  G11B5/4826 ,  G11B5/4873 ,  G11B5/5552 ,  G11B5/6011

摘要： A piezoelectric sensor-actuator, including a piezoelectric sensor bonded through non-conductive adhesive to a piezoelectric actuator to determine the pressure and/or temperature near the coupled slider. The piezoelectric actuator contributes to slider positioning. The piezoelectric sensor determines the experienced stress-strain. The hard disk drive uses the piezoelectric sensor-actuator creates a stress-strain measurement, a sensor spectrum, deriving the temperature estimate and/or the pressure estimate from said sensor spectrum, and operating at least one positioning control group member based upon the temperature estimate and/or pressure estimate. The micro-actuator containing at least one of the piezoelectric sensor-actuators, flexure finger, head gimbal assembly, head stack assembly, an actuator assembly, an embedded circuit, and the hard disk drive. The invention includes manufacturing methods and the piezoelectric sensor-actuator, the micro-actuator, the head gimbal assembly, the actuator assembly, the head stack assembly, the embedded circuit, and the hard disk drive as products.

摘要翻译： 压电传感器致动器，包括通过非导电粘合剂粘合到压电致动器的压电传感器，以确定耦合的滑块附近的压力和/或温度。 压电执行器有助于滑块定位。 压电传感器决定经验的应力应变。 硬盘驱动器使用压电传感器 - 致动器创建应力 - 应变测量，传感器光谱，从所述传感器光谱导出温度估计和/或压力估计，以及基于温度估计来操作至少一个定位控制组成员 和/或压力估计。 微致动器包含至少一个压电传感器 - 致动器，弯曲指头，头部万向节组件，头部堆叠组件，致动器组件，嵌入式电路和硬盘驱动器。 本发明包括制造方法和压电传感器 - 致动器，微致动器，头万向架组件，致动器组件，头组件组件，嵌入式电路和作为产品的硬盘驱动器。

公开(公告)号：US07576940B2

公开(公告)日：2009-08-18

申请号：US11329724

申请日：2006-01-10

申请人： Dong Jun Lee ,  Young-Hoon Kim ,  Vinod Sharma ,  Hyung Jai Lee

发明人： Dong Jun Lee ,  Young-Hoon Kim ,  Vinod Sharma ,  Hyung Jai Lee

IPC分类号： G11B5/596

CPC分类号： G11B5/5552 ,  G11B5/596

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20080117541A1

公开(公告)日：2008-05-22

申请号：US11603371

申请日：2006-11-22

申请人： Chang-Ik Kang ,  Young-Hoon Kim ,  Hyung Jai Lee

发明人： Chang-Ik Kang ,  Young-Hoon Kim ,  Hyung Jai Lee

IPC分类号： G11B21/02

CPC分类号： G11B5/59627

摘要： A hard disk drive with a circuit that provides a control signal to a voice coil motor to move a head across a disk. The circuit includes a repeatable run-out estimator in a feed forward control loop to control the movement of the head. The repeatable run-out estimator compensates for a constant bias torque disturbance in the drive.

摘要翻译： 具有电路的硬盘驱动器，其向音圈电机提供控制信号以将磁头移动到磁盘上。 该电路在前馈控制回路中包括一个可重复的径向估计器，用于控制磁头的运动。 可重复的耗尽量估计器补偿驱动器中恒定的偏置转矩扰动。

公开(公告)号：US20080002305A1

公开(公告)日：2008-01-03

申请号：US11480339

申请日：2006-06-29

申请人： Hae-sung Kwon ,  Hyung Jai Lee

发明人： Hae-sung Kwon ,  Hyung Jai Lee

IPC分类号： G11B5/56

CPC分类号： G11B5/5552 ,  G11B5/4826 ,  G11B5/4873

摘要： Micro-actuator assembly including micro-actuator mount coupled to micro-actuator bridge to provide merged footprint with slider and micro-actuator bridge gap. Flexure finger including micro-actuator assembly for coupling to slider. Head gimbal assembly including flexure finger coupled to the slider. A head stack assembly including at least one of the head gimbal assemblies coupled to a head stack. Hard disk drive including head stack assembly. The invention includes manufacturing the micro-actuator assembly, the flexure finger, the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of the invention's manufacturing processes.

摘要翻译： 微致动器组件包括微执行器安装件，耦合到微执行器桥，以提供与滑块和微执行器桥接间隙的合并占地面积。 挠性手指包括用于联接到滑块的微致动器组件。 头万向节组件，包括连接到滑块的挠曲指。 一种头部堆叠组件，包括联接到头部堆叠的头部万向架组件中的至少一个。 硬盘驱动器，包括磁头堆栈组件。 本发明包括制造微致动器组件，挠曲指，头万向架组件，磁头组组件和硬盘驱动器，以及作为本发明的制造工艺的产品的这些项目。

公开(公告)号：US07009804B2

公开(公告)日：2006-03-07

申请号：US10903731

申请日：2004-07-29

申请人： Vinod Sharma ,  Hyung Jai Lee

发明人： Vinod Sharma ,  Hyung Jai Lee

IPC分类号： G11B5/596

CPC分类号： G11B5/596

摘要： A sinusoidal signal is added to the notch filtered micro-actuator control signal stimulating the micro-actuator. The voice coil control signal is notch filtered to remove the frequency component of the sinusoidal signal before it stimulates the voice coil motor. The micro-actuator control signal is notch filtered to remove the frequency component of the sinusoidal signal before it stimulates the micro-actuator. The response of the system is measured as the Position Error Signal (PES), for the magnetic head moved by the micro-actuator. The measured PES is then demodulated at the frequency of the sinusoidal signal to create a measured amplitude. The stroke sensitivity is then calculated from the measured amplitude and amplitude of the sinusoidal stimulus. The frequency of the sinusoidal signal and notch filters is essentially the same, chosen away from significant excitation frequencies and outside the bandwidth of the servo system. The invention includes using multiple frequencies, as well as various formulas for the stroke sensitivity. The invention may be applied to more than one micro-actuator within the hard disk drive to create a stroke sensitivity for each micro-actuator, a combination, or for all micro-actuators. The invention includes the method implemented using a servo-controller, as well as the program system for the servo-controller, at least partly implementing the method.

摘要翻译： 将正弦信号添加到刺激微致动器的陷波滤波微致动器控制信号。 音圈控制信号被陷波滤波，以消除正弦信号的频率分量，然后刺激音圈电机。 微致动器控制信号被陷波滤波，以消除正弦信号的频率分量，然后刺激微致动器。 对于由微执行器移动的磁头，系统的响应被测量为位置误差信号（PES）。 然后将所测量的PES以正弦信号的频率解调，以产生测量幅度。 然后根据测量的正弦刺激的振幅和振幅计算行程灵敏度。 正弦信号和陷波滤波器的频率基本相同，从显着的激励频率和伺服系统的带宽外部选择。 本发明包括使用多个频率以及用于行程灵敏度的各种公式。 本发明可以应用于硬盘驱动器内的多于一个微致动器，以为每个微致动器，组合或所有微致动器创建行程灵敏度。 本发明包括使用伺服控制器实现的方法以及伺服控制器的程序系统，至少部分实现该方法。

公开(公告)号：US06710594B2

公开(公告)日：2004-03-23

申请号：US10103485

申请日：2002-03-20

申请人： Eunkyu Eunkyu ,  Hyung Jai Lee

发明人： Eunkyu Eunkyu ,  Hyung Jai Lee

IPC分类号： G01R3312

CPC分类号： G11B5/455 ,  G11B5/012 ,  G11B5/4806 ,  G11B27/36 ,  G11B2005/0016 ,  G11B2220/20 ,  Y10T29/49021 ,  Y10T29/49025

摘要： A test system and method determining performance of a merged magnetoresistive read-write head based upon operating the write inductive head of the merged read-write head, measuring the resistance of the read head under certain read current bias conditions and finding which read heads have been damaged by ESD.

摘要翻译： 一种测试系统和方法，其基于操作合并的读写头的写入感应头来确定合并的磁阻读写头的性能，在某些读取电流偏置条件下测量读取头的电阻并且找出哪些读取头已被 被ESD损坏