公开(公告)号：US20080278849A1

公开(公告)日：2008-11-13

申请号：US11800864

申请日：2007-05-07

申请人： Haesung Kwon ,  Yun-Sik Han ,  Yanning Liu ,  Sean Kang ,  Hyung Jai Lee

发明人： Haesung Kwon ,  Yun-Sik Han ,  Yanning Liu ,  Sean Kang ,  Hyung Jai Lee

IPC分类号： G11B33/14

CPC分类号： G11B33/148 ,  G11B25/043

摘要： Disclosed is a hard disk drive that includes at least one disk enclosed by a cover and a disk. A damper is separated from the disk by an air gap about 1.0 mm. The damper and air gap reduce the velocity of the air flow and any vibration associated with the flow of air.

摘要翻译： 公开了一种硬盘驱动器，其包括由盖和盘包围的至少一个盘。 阻尼器通过约1.0mm的气隙与盘分离。 阻尼器和气隙减小了空气流速和与空气流动相关的任何振动。

公开(公告)号：US20080094748A1

公开(公告)日：2008-04-24

申请号：US11586019

申请日：2006-10-24

申请人： Yun-Sik Han ,  Joseph Chang ,  Myeong Eop Kim ,  Haesung Kwon ,  Hyung Jai Lee

发明人： Yun-Sik Han ,  Joseph Chang ,  Myeong Eop Kim ,  Haesung Kwon ,  Hyung Jai Lee

IPC分类号： G11B33/14

CPC分类号： G11B5/6005 ,  G11B5/40 ,  G11B25/043 ,  G11B33/08

摘要： A hard disk drive that at least one disk that is rotated by a spindle motor. The rotating disk creates a flow of air within the disk drive. A damper is located adjacent to the disk. The damper reduces the velocity of the air flow and any vibration associated with the flow of air.

摘要翻译： 至少一个由主轴电机旋转的磁盘的硬盘驱动器。 旋转盘在磁盘驱动器内产生空气流。 阻尼器与磁盘相邻。 阻尼器降低了气流的速度和与空气流动相关的任何振动。

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。

公开(公告)号：US07697236B2

公开(公告)日：2010-04-13

申请号：US11357824

申请日：2006-04-17

申请人： Yun-Sik Han ,  Young-Hoon Kim ,  Hae-Sung Kwon ,  Hyung Jai Lee ,  Hong-Taek Lim

发明人： Yun-Sik Han ,  Young-Hoon Kim ,  Hae-Sung Kwon ,  Hyung Jai Lee ,  Hong-Taek Lim

IPC分类号： G11B33/14

CPC分类号： G11B17/038

摘要： The invention includes a disk damper containing an extended area located on the upstream side of the head stack assembly. The extended area is joined to a tail section. In the extended area, the disk damper provides a wall near the neighboring rotating disk surface that extends from the outside diameter to the inside diameter of the rotating disk surface. Experimental results have shown that this provides much more consistent dampening of disk vibrations and vibrations of a head stack assembly positioned anywhere from the inside diameter to the outside diameter. The hard disk drive including the disk damper. Using the disk damper in a hard disk drive to improve the reliability of the hard disk drive during track following. Making the hard disk drive using the disk damper, and the hard disk drive as a product of that manufacturing process.

摘要翻译： 本发明包括一个盘式阻尼器，该盘式阻尼器包含位于头部堆叠组件的上游侧的延伸区域。 延伸区域连接到尾部。 在扩展区域中，盘式减震器在相邻的旋转盘表面附近提供了一个壁，该壁从外径延伸到旋转盘表面的内径。 实验结果表明，这提供了从内径到外径位于任何地方的磁头堆叠组件的盘振动和振动的更一致的衰减。 硬盘驱动器包括磁盘阻尼器。 在硬盘驱动器中使用磁盘风扇，以提高跟踪期间硬盘驱动器的可靠性。 使用磁盘阻尼器和硬盘驱动器作为该制造过程的产物制作硬盘驱动器。

公开(公告)号：US20050248876A1

公开(公告)日：2005-11-10

申请号：US10842798

申请日：2004-05-10

申请人： Haesung Kwon ,  Hyung Lee ,  Seong-Woo Kang ,  Yun-Sik Han

发明人： Haesung Kwon ,  Hyung Lee ,  Seong-Woo Kang ,  Yun-Sik Han

IPC分类号： G11B17/00 ,  G11B23/50

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。

公开(公告)号：US20080002302A1

公开(公告)日：2008-01-03

申请号：US11435271

申请日：2006-05-15

申请人： Hae-sung Kwon ,  Eo-Jin Hong ,  Yun-Sik Han ,  Vinod Sharma ,  Hyung Lee

发明人： Hae-sung Kwon ,  Eo-Jin Hong ,  Yun-Sik Han ,  Vinod Sharma ,  Hyung Lee

IPC分类号： G11B5/48

CPC分类号： G11B5/4826 ,  G11B5/40 ,  G11B5/5582

摘要： This invention stems from knowing that a head gimbal assembly has twice as much of its mass centered on its base plate as it has on its slider performs better in terms of resilience to mechanical shock than one with twice as much mass on the slider as on its base plate. The inventors realized that while these two configurations in normal operation are almost identical, during the impulse and after shocks, the slider with the smaller ratio of mass to the base plate performs better. The invention includes manufacturing methods for the head gimbal assembly, the head stack assembly, and the hard disk drive, as well as these items as products of their respective manufacturing processes.

摘要翻译： 本发明源于知道头部万向节组件的质量是其基板的两倍，因为它的滑块在弹性回弹性方面比在滑块上具有两倍质量的弹性更好。 底盘。 发明人意识到，虽然这两种正常操作中的这两种配置几乎相同，但是在冲击和冲击之后，质量与基板之间的比例较小的滑块性能更好。 本发明包括头部万向节组件，磁头组合组件和硬盘驱动器的制造方法，以及作为其各自制造工艺的产品的这些项目。

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.

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。

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.

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。