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1. 发明授权

US06501614B1 Acoustic insulator for controlling noise generated in a mass storage device 失效
标题翻译：用于控制大容量存储装置中产生的噪声的声绝缘体
公开(公告)号：US06501614B1
公开(公告)日：2002-12-31
申请号：US09585914
申请日：2000-06-02
申请人： Seong-Woo Kang , Tai-Yeon Hwang , Yun-Sik Han , Wilson Long
发明人： Seong-Woo Kang , Tai-Yeon Hwang , Yun-Sik Han , Wilson Long
IPC分类号： G11B17028
CPC分类号： G11B33/08
摘要： A hard disk drive which has a housing that can attenuate noise. The housing may include a first layer that is attached to a second layer and a third layer located between the first and second layers. The layers may be designed to create a transfer function that attenuates, or rolls off, acoustic noise within a range of frequencies.
摘要翻译：硬盘驱动器，具有可以衰减噪音的外壳。壳体可以包括附接到第二层的第一层和位于第一层和第二层之间的第三层。可以将这些层设计成产生在频率范围内衰减或降低声学噪声的传递函数。

2. 发明授权

US06493180B1 Hard disk drive cover that contains a helmholtz resonator which attenuates acoustic energy 有权
标题翻译：硬盘驱动器盖包含一个亥姆霍兹共振器，可以衰减声能
公开(公告)号：US06493180B1
公开(公告)日：2002-12-10
申请号：US09593181
申请日：2000-06-13
申请人： Seong-Woo Kang , Wilson Long , Tai-Yeon Hwang
发明人： Seong-Woo Kang , Wilson Long , Tai-Yeon Hwang
IPC分类号： G11B3314
CPC分类号： G11B33/08 , G11B25/043
摘要： A disk drive housing that can attenuate noise. The housing may include a first layer that is attached to a second layer, and a gap located between the first and second layers. The layers and gap may be configured to attenuate acoustic energy within a relatively broad frequency range.
摘要翻译：可以衰减噪音的磁盘驱动器外壳。壳体可以包括附接到第二层的第一层和位于第一层和第二层之间的间隙。层和间隙可以被配置为在相对宽的频率范围内衰减声能。

3. 发明授权

US07031095B2 Servo controller method and apparatus for high tracks per inch hard disk drives using a delay accomodating state estimator 失效
公开(公告)号：US07031095B2
公开(公告)日：2006-04-18
申请号：US10903720
申请日：2004-07-29
申请人： Young-Hoon Kim , Sang Hoon Chu , Seong-Woo Kang , Dong-Ho Oh , Yun-Sik Han , Tae Yeon Hwang
发明人： Young-Hoon Kim , Sang Hoon Chu , Seong-Woo Kang , Dong-Ho Oh , Yun-Sik Han , Tae Yeon Hwang
IPC分类号： G11B5/596
CPC分类号： G11B5/5547 , G11B5/596
摘要： The invention applies to servo controllers for at least the voice coil motor of a hard disk drive. Today, many control algorithms require 80 to 90 percent of the sampling period to complete their calculation of the next control, making computation time delay no longer negligible. The invention accommodates the transport delay, such as computation time delay, into the state estimator and into the whole control system. Experimental results using a commercial hard drive, as well as simulation results, show that the invention's method effectively improves the hard disk drive control system stability by increasing the phase margin and gain margin. The invention includes the method of operating the servo-controller, as well as the apparatus implementing that method. The invention also includes hard disk drives containing servo-controllers implementing the method, and program systems residing in accessibly coupled memory to a computer within the servo controller implementing the method.

4. 发明申请

US20050007702A1 Method and apparatus reducing off track head motion due to disk vibration in a hard disk drive through the head gimbal assembly 失效
标题翻译：方法和装置减少由于硬盘驱动器中的磁头振动通过头部万向节组件引起的轨道头运动
公开(公告)号：US20050007702A1
公开(公告)日：2005-01-13
申请号：US10619163
申请日：2003-07-10
申请人： Dong-Ho Oh , Seong-Woo Kang , Yun-Sik Han , Young-Hoon Kim , Myeong-Eop Kim , Tae-Yeon Hwang , Jae-Won Kim
发明人： Dong-Ho Oh , Seong-Woo Kang , Yun-Sik Han , Young-Hoon Kim , Myeong-Eop Kim , Tae-Yeon Hwang , Jae-Won Kim
IPC分类号： G11B21/02 , G11B5/55 , G11B5/48
CPC分类号： G11B5/5552 , G11B5/4873 , G11B5/6011
摘要： Improved head gimbal assemblies reducing TMR (Track Mis-Registration) in a hard disk drive are provided. These head gimbal assemblies are as mechanically simple as contemporary head gimbal assemblies, support parallel flying sliders over flat disk surfaces, and reduce TMR induced by disk vibration. They are easier to build, more reliable, and cost less to make, than other known approaches at comparable track densities and rotational rates. The improved head gimbal assemblies include three sets of mechanisms for moving the slider parallel the disk surface, when the disk surface is flat, and radially moving the slider toward the track, when the disk surface is bent. The first and third mechanisms as well as the second and third mechanisms can be used together in a head gimbal assembly. An improved and distinctive servo-controller scheme resulting in an overall improvement in PES performance, particularly when applied to hard disk drives employing the invention's TMR reduction mechanisms. The servo-controllers trade off gain in the disk vibration frequency range, in favor of, increased rejection of low frequency disturbances. This leads to the lowest PES statistics, when applied to hard disk drives with the TMR reduction mechanisms of the invention.
摘要翻译：提供了改进的头万向节组件，减少了硬盘驱动器中的TMR（跟踪错位）。这些头万向架组件与当代头万向架组件一样机械简单，在平盘表面上支撑平行的飞行滑块，并减少由磁盘振动引起的TMR。与其他已知方法相比，其轨迹密度和转速可比较容易构建，更可靠，成本更低。改进的头万向节组件包括三组机构，用于当盘表面平坦时平行于盘表面移动滑块，并且当盘表面弯曲时使滑块朝向轨道径向移动。第一和第三机构以及第二和第三机构可以一起用在头部万向架组件中。改进和独特的伺服控制器方案导致PES性能的总体改进，特别是当应用于采用本发明的TMR减小机构的硬盘驱动器时。伺服控制器在磁盘振动频率范围内取消增益，有利于提高低频干扰的抑制。当应用于具有本发明的TMR减少机制的硬盘驱动器时，这导致最低的PES统计。

5. 发明授权

US08199568B2 Method and apparatus for a disk damper including an enclosing flow chamber wall for a hard disk drive 失效
标题翻译：一种用于盘式减震器的方法和装置，包括用于硬盘驱动器的封闭流动室壁
公开(公告)号：US08199568B2
公开(公告)日：2012-06-12
申请号：US12359155
申请日：2009-01-23
申请人： Haesung Kwon , Jaesuk Lee , Seong-Woo Kang , Hyung Jai Lee
发明人： Haesung Kwon , Jaesuk Lee , Seong-Woo Kang , Hyung Jai Lee
IPC分类号： H01L43/02 , G11C11/14
CPC分类号： G11B33/146 , G11B25/043
摘要： A hard disk drive with a disk base including a disk wall with a first intake, a second intake off of the first intake, an outlet and an air filter configured to receive a first airflow from the first intake and suction from a second airflow from the second intake creating negative pressure at a trapping surface of the air filter away from the outlet. At least one disk rotates to create a rotating disk surface generating airflow configured to enter the first intake to create the first airflow. A disk damper includes an enclosing wall neighboring the air filter to create a flow chamber providing a third airflow through the outlet formed of the first air flow crossing the trapping surface and the second air flow. A disk cover mounts on the disk base to encapsulate the air chamber. The disk base and disk damper are disclosed.
摘要翻译：一种具有盘基座的硬盘驱动器，包括具有第一进气口的盘壁，第一进气口的第二进气口，出口和空气过滤器，该空气过滤器被配置为从第一进气口接收第一气流并从第二气流第二进气口在空气过滤器的捕集表面处离开出口产生负压。至少一个盘旋转以产生旋转的盘表面，产生气流，该气流被配置成进入第一进气口以产生第一气流。盘式减震器包括与空气过滤器相邻的封闭壁，以产生流动室，该流动室提供通过穿过捕集表面和第二空气流的第一空气流形成的出口的第三气流。磁盘盖安装在磁盘基座上以封装空气室。公开了盘基和盘式阻尼器。

6. 发明授权

US06922303B2 Reaction mass dual-stage actuator (DSA) and sensor 失效
标题翻译：反应质量双级执行器（DSA）和传感器
公开(公告)号：US06922303B2
公开(公告)日：2005-07-26
申请号：US10139917
申请日：2002-05-06
申请人： Dan Blick , Seong-Woo Kang
发明人： Dan Blick , Seong-Woo Kang
IPC分类号： G11B21/06 , G11B5/55 , G11B5/596
CPC分类号： G11B5/5552
摘要： A hard disk drive that has a reaction mass and a transducer that can be used to move and/or sense the acceleration of an actuator arm of the drive. The transducer is coupled to a disk controller that can provide output signals which induce a movement of the reaction mass. Movement of the reaction mass will cause a responsive movement of a head(s) coupled to the actuator arm. The transducer can also provide input signals to the controller that correspond to an acceleration of the actuator arm. The acceleration signal can provide force feedback for a servo system of the drive.
摘要翻译：具有反作用质量的硬盘驱动器和可用于移动和/或感测驱动器的致动器臂的加速度的换能器。传感器耦合到可以提供输出信号的盘控制器，该输出信号引起反作用物质的移动。反应物质的运动将导致联接到致动器臂的头部的响应运动。传感器还可以向控制器提供与致动器臂的加速度相对应的输入信号。加速度信号可以为驱动器的伺服系统提供力反馈。

7. 发明申请

US20060023340A1 Servo controller method and apparatus for high tracks per inch hard disk drives using a delay accomodating state estimator 失效
公开(公告)号：US20060023340A1
公开(公告)日：2006-02-02
申请号：US10903720
申请日：2004-07-29
申请人： Young-Hoon Kim , Sang Chu , Seong-Woo Kang , Dong-Ho Oh , Yun-Sik Han , Tae Hwang
发明人： Young-Hoon Kim , Sang Chu , Seong-Woo Kang , Dong-Ho Oh , Yun-Sik Han , Tae Hwang
IPC分类号： G11B5/596
CPC分类号： G11B5/5547 , G11B5/596
摘要： The invention applies to servo controllers for at least the voice coil motor of a hard disk drive. Today, many control algorithms require 80 to 90 percent of the sampling period to complete their calculation of the next control, making computation time delay no longer negligible. The invention accommodates the transport delay, such as computation time delay, into the state estimator and into the whole control system. Experimental results using a commercial hard drive, as well as simulation results, show that the invention's method effectively improves the hard disk drive control system stability by increasing the phase margin and gain margin. The invention includes the method of operating the servo-controller, as well as the apparatus implementing that method. The invention also includes hard disk drives containing servo-controllers implementing the method, and program systems residing in accessibly coupled memory to a computer within the servo controller implementing the method.

8. 发明授权

US06920018B2 Method and apparatus reducing off-track head motion due to disk vibration in a disk drive through flexure mounting and/or non-symmetric hinging within the head gimbal assembly 失效
标题翻译：方法和装置通过磁头万向架组件内的弯曲安装和/或非对称铰链减少磁盘驱动器中的磁盘振动造成的偏离磁头运动
公开(公告)号：US06920018B2
公开(公告)日：2005-07-19
申请号：US10618524
申请日：2003-07-10
申请人： Dong-Ho Oh , Seong-Woo Kang , Yun-Sik Han , Young-Hoon Kim , Myeong-Eop Kim , Tae-Yeon Hwang , Jae-Won Kim
发明人： Dong-Ho Oh , Seong-Woo Kang , Yun-Sik Han , Young-Hoon Kim , Myeong-Eop Kim , Tae-Yeon Hwang , Jae-Won Kim
IPC分类号： G11B5/56 , G11B5/596 , G11B5/60
CPC分类号： G11B5/59627
摘要： Improved head gimbal assemblies reducing TMR (Track Mis-Registration) in a hard disk drive are provided. These head gimbal assemblies are as mechanically simple as contemporary head gimbal assemblies, support parallel flying sliders over flat disk surfaces, and reduce TMR' induced by disk vibration. They are easier to build, more reliable, and cost less to make, than other known approaches at comparable track densities and rotational rates. The improved head gimbal assemblies include three sets of mechanisms moving the slider parallel the disk surface, when the disk surface is flat, and radially moving the slider toward the track, when the disk surface is bent. The first and third mechanisms as well as the second and third mechanisms can be used together in a head gimbal assembly.An improved and distinctive servo-controller scheme resulting in an overall improvement in PES performance, particularly when applied to hard disk drives employing the invention's TMR reduction mechanisms. The servo-controllers trade off gain in the disk vibration frequency range, in favor of, increased rejection of low frequency disturbances. This leads to the lowest PES statistics, when applied to hard disk drives with the TMR reduction mechanisms of the invention.
摘要翻译：提供了改进的头万向节组件，减少了硬盘驱动器中的TMR（跟踪错位）。这些头万向架组件与当代头万向架组件一样机械简单，在平盘表面上支撑平行的滑动滑块，并减少由磁盘振动引起的TMR。与其他已知方法相比，其轨迹密度和转速可比较容易构建，更可靠，成本更低。改进的头万向节组件包括三组机构，当盘表面平坦时，滑块平行于盘表面移动，并且当盘表面弯曲时，将滑块径向移动到轨道。第一和第三机构以及第二和第三机构可以一起用在头部万向架组件中。改进和独特的伺服控制器方案导致PES性能的总体改进，特别是当应用于采用本发明的TMR减小机构的硬盘驱动器时。伺服控制器在磁盘振动频率范围内取消增益，有利于提高低频干扰的抑制。当应用于具有本发明的TMR减少机制的硬盘驱动器时，这导致最低的PES统计。

9. 发明申请

US20050128628A1 Servo track writing for ultra-high tpi disk drive in low density medium condition 失效
标题翻译：伺服轨迹写入超高Tpi磁盘驱动器在低密度介质条件下
公开(公告)号：US20050128628A1
公开(公告)日：2005-06-16
申请号：US10732999
申请日：2003-12-10
申请人： Yun-Sik Han , Seong-Woo Kang , Tho Pham , Young-Hoon Kim , Edward Aguilar , Dong-Ho Oh , Myeong-Eop Kim
发明人： Yun-Sik Han , Seong-Woo Kang , Tho Pham , Young-Hoon Kim , Edward Aguilar , Dong-Ho Oh , Myeong-Eop Kim
IPC分类号： G11B21/10 , G11B5/596 , G11B19/02 , G11B21/02 , G11B33/14
CPC分类号： G11B5/59633 , G11B33/1486
摘要： A servo writer that writes servo information onto a disk of a hard disk drive. The servo writer can write servo information onto a disk of a hard disk drive while the disk is within an inner chamber of a housing. The rotating disk creates a flow of fluid within the inner chamber. The disk is rotated during the servo writing process. The density of a fluid medium within the inner chamber is controlled by a medium control system so that the density of the medium is less than the density of air at one atmosphere. Lowering the density decreases the amplitude of vibrational forces created by the flow of fluid. Decreasing the amplitude reduces errors in the servo writing process. The density can be reduced by pulling a vacuum within the inner chamber. The density can also be reduced by filling the inner chamber with a gas such as helium that has a lower density than air.
摘要翻译：将伺服信息写入硬盘驱动器的磁盘上的伺服写入器。伺服写入器可以在盘位于壳体的内腔内时将伺服信息写入硬盘驱动器的盘上。旋转盘在内腔内产生流体流。在伺服写入过程中，盘旋转。内室内的流体介质的密度由介质控制系统控制，使得介质的密度小于一个大气压下的空气密度。降低密度会降低由流体流产生的振动力的振幅。降低幅度会降低伺服写入过程中的误差。可以通过在内腔内拉真空来减小密度。通过用比空气密度低的诸如氦气的气体填充内室也可以减小密度。

10. 发明授权

US07630167B2 Method and apparatus to detect sub-micron particles in a hard disk drive with optical pickup 失效
标题翻译：用光学拾取器检测硬盘驱动器中的亚微米颗粒的方法和装置
公开(公告)号：US07630167B2
公开(公告)日：2009-12-08
申请号：US10842798
申请日：2004-05-10
申请人： Haesung Kwon , Hyung Jai Lee , Seong-Woo Kang , Yun-Sik Han
发明人： Haesung Kwon , Hyung Jai Lee , Seong-Woo Kang , Yun-Sik Han
IPC分类号： G11B33/14 , G11B5/00
CPC分类号： G11B23/505
摘要： A hard disk drive that includes an optical pick-up coupled to a head of a hard disk assembly (“HDA”). The head is located adjacent to a disk. The optical pick-up can sense the surface of the disk by detecting light reflected from the surface. The optical pick-up is coupled to a particle circuit that can distinguish between an embedded particle and a floating particle from the reflected light.
摘要翻译：硬盘驱动器，其包括耦合到硬盘组件（“HDA”）的头部的光学拾取器。磁头位于磁盘附近。光学拾取器可以通过检测从表面反射的光来感测盘的表面。光学拾取器耦合到可以将嵌入的颗粒和浮动颗粒与反射光区分开的粒子电路。

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