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1. 发明授权

US07355812B2 Disk drive having anti-shock structure 失效
标题翻译：磁盘驱动器具有抗震结构
公开(公告)号：US07355812B2
公开(公告)日：2008-04-08
申请号：US10963554
申请日：2004-10-14
申请人： Yong-kyu Byun , Dong-ho Oh , Min-pyo Hong , Jeong-seok Koh
发明人： Yong-kyu Byun , Dong-ho Oh , Min-pyo Hong , Jeong-seok Koh
IPC分类号： G11B33/14
CPC分类号： G11B33/08 , G11B25/043
摘要： A disk drive having an anti-shock structure is provided. The disk drive includes: a base member; a spindle motor supported by a spindle motor support formed on the base member, the spindle motor rotating a data storage disk; an actuator rotatably coupled to an actuator pivot supported by a pivot support formed on the base member, the actuator moving a read/write head to a position on a recording surface of the disk; and slots formed in the base member around the circumference of each of the spindle motor support and the pivot support, the slots for partially controlling the stiffness of the base member. The slots include a first slot formed on a circumference region of the spindle motor support near the pivot support, and a second slot formed on a circumference region of the pivot support opposite to the spindle motor support. Due to the structure of the disk drive, the spindle motor and the actuator pivot are inclined in the same direction when an external impact is applied. Therefore, a collision between the head and the disk, i.e., a head slap, is unlikely to occur, thereby minimizing damage to the head and the disk caused by the head slap.
摘要翻译：提供具有防震结构的磁盘驱动器。磁盘驱动器包括：基座部件; 主轴电动机由形成在基座部件上的主轴电动机支撑支承，主轴电动机旋转数据存储盘; 致动器可旋转地联接到由枢转支撑件支撑的致动器枢轴，所述枢转支撑件形成在所述基座构件上，所述致动器将读/写头移动到所述盘的记录表面上的位置; 以及形成在基部构件中的围绕每个主轴电机支撑件和枢转支撑件的圆周的槽，用于部分地控制基座构件的刚度的槽。所述槽包括形成在所述主轴电机支撑件的靠近所述枢转支撑件的圆周区域上的第一槽，以及形成在所述枢转支撑件的与所述主轴电机支撑件相对的圆周区域上的第二槽。由于磁盘驱动器的结构，当施加外部冲击时，主轴电机和致动器枢轴在相同的方向上倾斜。因此，头部和盘之间的碰撞，即头部拍打不太可能发生，从而最小化由头部拍打引起的头部和盘片的损坏。

2. 发明授权

US07349183B2 Actuator assembly having optimized 4-bar linkage type actuator arm, hard disk drive employing the same, and method for optimizing shape of opening formed in actuator arm 失效
标题翻译：具有优化的4杆连杆型致动器臂的致动器组件，采用该驱动臂的硬盘驱动器和用于优化在致动器臂中形成的开口形状的方法
公开(公告)号：US07349183B2
公开(公告)日：2008-03-25
申请号：US11264002
申请日：2005-11-02
申请人： Dong-ho Oh , Yong-kyu Byun , Cheol-soon Kim , Haeng-soo Lee
发明人： Dong-ho Oh , Yong-kyu Byun , Cheol-soon Kim , Haeng-soo Lee
IPC分类号： G11B5/48
CPC分类号： G11B5/5552 , G11B5/5556
摘要： An actuator arm of an actuator assembly includes a 4-bar linkage structure defined by a trapezoidal shaped opening formed between a front end of the actuator arm and a pivot shaft. A first rounded extension portion and a second rounded extension portion are formed at two corners adjacent to the pivot shaft of the opening, respectively, and a third rounded extension portion is formed at two corners adjacent to a front end of the opening, and hinges H1, H2, H3 and H4 are formed at the actuator arm by the first, second and third extension portions. Design factors determining a shape of the opening are optimized to meet the following relations for the structure of the 4-bar linkage: W(cos β−1)+Z(cos α−1)=δx=0, W sin β+Z sin α=δy=0.
摘要翻译：致动器组件的致动器臂包括由致动器臂的前端和枢转轴之间形成的梯形形状的开口限定的4杆连杆结构。第一圆形延伸部分和第二圆形延伸部分分别形成在与开口的枢轴相邻的两个角处，并且第三圆形延伸部分形成在与开口的前端相邻的两个角处，铰链H 在致动器臂上由第一，第二和第二个和第二个和第二个，第二，第二，第二，第二，第二，第二，第三延伸部分。优化了确定开口形状的设计因子，以满足以下关于4连杆结构的关系：W（cosβ-1）+ Z（cosα-1）=δ× = 0，W sinβ+ Zsinα= delta Y y = 0。

3. 发明申请

US20060093245A1 Fluid dynamic bearing and hard disk drive employing the same 失效
标题翻译：流体动力轴承和采用它的硬盘驱动器
公开(公告)号：US20060093245A1
公开(公告)日：2006-05-04
申请号：US11254762
申请日：2005-10-21
申请人： Jae-hyuk Han , Dong-ho Oh , Yong-kyu Byun , Cheol-soon Kim , Jeong-seok Koh , Nam-hoon Lee , Ja-choon Koo
发明人： Jae-hyuk Han , Dong-ho Oh , Yong-kyu Byun , Cheol-soon Kim , Jeong-seok Koh , Nam-hoon Lee , Ja-choon Koo
IPC分类号： F16C32/06
CPC分类号： G11B19/2018 , F16C17/045 , F16C33/107 , F16C2370/12
摘要： A fluid dynamic bearing is constructed to support stably a rotating body to which a non-uniform force is applied, and a hard disk drive (HDD) employing the fluid dynamic bearing is provided. The fluid dynamic bearing includes a journal bearing part supporting a rotary shaft in a radial direction of the rotary shaft, a thrust part formed at one end of the rotary shaft, a thrust bearing part facing the thrust part and supporting the rotary shaft in a longitudinal direction of the rotary shaft, and a plurality of grooves formed on a surface of the thrust bearing part and/or the thrust part. The plurality of grooves include a first groove group including a plurality of grooves having the same shape and arrangement, and a second groove group adjacent to the first groove group and including at least one groove asymmetric with respect to the grooves of the first groove group.
摘要翻译：构造流体动力轴承以稳定地支撑施加不均匀的力的旋转体，并且提供采用流体动力轴承的硬盘驱动器（HDD）。流体动力轴承包括在旋转轴的径向方向上支撑旋转轴的轴颈轴承部，形成在旋转轴的一端的推力部，面向推力部的推力轴承部，并以纵向方式支撑旋转轴旋转轴的方向，以及形成在推力轴承部和/或推力部的表面上的多个槽。多个凹槽包括具有相同形状和布置的多个凹槽的第一凹槽组和与第一凹槽组相邻并且包括相对于第一凹槽组的凹槽不对称的至少一个凹槽的第二凹槽组。

4. 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.

5. 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。

6. 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。

7. 发明授权

US07952835B2 Head stack assembly with suspension supporting head slider and hard disc drive including the same 失效
标题翻译：具有悬挂支撑头滑块和包括其的硬盘驱动器的头部堆叠组件
公开(公告)号：US07952835B2
公开(公告)日：2011-05-31
申请号：US11777292
申请日：2007-07-13
申请人： Haeng-soo Lee , Woo-sung Kim , Dong-ho Oh
发明人： Haeng-soo Lee , Woo-sung Kim , Dong-ho Oh
IPC分类号： G11B5/53 , G11B21/16
CPC分类号： G11B5/5569 , G11B5/4833 , G11B5/4886
摘要： A head stack assembly (HAS) of a hard disk drive (HDD) includes a swing arm, a connection plate integral with a terminal end of the swing arm, a head slider including a magnetic head for reading/writing data from/onto a disk, and a suspension that is attached to the connection plate, supports the head slider, and has characteristics which minimize the degree to which the magnetic head will run off-track due to vibrations induced in the HDD. The suspension includes two connecting parts having upper surfaces at which the suspension is attached to the connection plate. In the HDD, the upper surface of the connecting part positioned closest to the center of the disk center lies in a plane beneath the plane in which the upper surface of the other connecting part lies. Also, that half of the suspension which is disposed to one side of the central longitudinal axis of the HSA and is located remotely from the center of the disk in the HDD is stiffer than the other half of the suspension which is proximal the center of the disk. To this end, the suspension includes at least one side-rail that renders the suspension asymmetrical.
摘要翻译：硬盘驱动器（HDD）的磁头组组件（HAS）包括摆臂，与摆臂的终端一体的连接板，包括用于从/向盘上读/写数据的磁头的磁头滑块以及附接到连接板的悬架，支撑磁头滑块，并且具有使由磁头引起的振动引起的磁头偏离磁道的程度最小化的特性。悬架包括两个具有上表面的连接部分，悬挂件附接到连接板。在HDD中，最靠近盘中心的连接部分的上表面位于另一个连接部分的上表面所在的平面下方的平面内。此外，设置在HSA的中心纵向轴线的一侧并且位于远离盘的中心位于HDD中的悬架的该半部分比靠近中心的悬架的另一半更硬磁盘。为此，悬架包括使悬架不对称的至少一个侧轨。

8. 发明申请

US20100265613A1 SERVO PATTERN ERASING METHOD AND APPARATUS OF HARD DISK DRIVE 失效
标题翻译：伺服模式擦除方法和硬盘驱动装置
公开(公告)号：US20100265613A1
公开(公告)日：2010-10-21
申请号：US12759764
申请日：2010-04-14
申请人： Ha Yong KIM , Dong Ho Oh , Chul Woo Lee
发明人： Ha Yong KIM , Dong Ho Oh , Chul Woo Lee
IPC分类号： G11B5/02
CPC分类号： G11B5/024 , B82Y10/00 , G11B5/743
摘要： A method of erasing a servo pattern of a hard disk drive includes reading a servo pattern recorded on a disk, generating an erase pattern to erase the servo pattern based on the servo pattern obtained in the reading of the servo pattern, and erasing the servo pattern by using the erase pattern while the disk is rotated. The servo pattern recorded on the hard disk drive may be uniformly erased. Also, a stabilization time to stabilize a read/write head after the position control of the read/write head that is needed when a servo writer is used may be avoided so that a time to erase a servo pattern may be reduced.
摘要翻译：擦除硬盘驱动器的伺服模式的方法包括读取记录在盘上的伺服模式，根据在伺服模式的读取中获得的伺服模式产生擦除模式以擦除伺服模式，并擦除伺服模式通过在盘旋转时使用擦除图案。记录在硬盘驱动器上的伺服模式可能被均匀地擦除。此外，可以避免在使用伺服写入器时所需的读/写头的位置控制之后稳定读/写头的稳定时间，从而可以减少擦除伺服模式的时间。

9. 发明授权

US07677805B2 Fluid dynamic bearing and hard disk drive employing the same 失效
标题翻译：流体动力轴承和采用它的硬盘驱动器
公开(公告)号：US07677805B2
公开(公告)日：2010-03-16
申请号：US11254762
申请日：2005-10-21
申请人： Jae-hyuk Han , Dong-ho Oh , Yong-kyu Byun , Cheol-soon Kim , Jeong-seok Koh , Nam-hoon Lee , Ja-choon Koo
发明人： Jae-hyuk Han , Dong-ho Oh , Yong-kyu Byun , Cheol-soon Kim , Jeong-seok Koh , Nam-hoon Lee , Ja-choon Koo
IPC分类号： F16C32/06
CPC分类号： G11B19/2018 , F16C17/045 , F16C33/107 , F16C2370/12
摘要： A fluid dynamic bearing is constructed to support stably a rotating body to which a non-uniform force is applied, and a hard disk drive (HDD) employing the fluid dynamic bearing is provided. The fluid dynamic bearing includes a journal bearing part supporting a rotary shaft in a radial direction of the rotary shaft, a thrust part formed at one end of the rotary shaft, a thrust bearing part facing the thrust part and supporting the rotary shaft in a longitudinal direction of the rotary shaft, and a plurality of grooves formed on a surface of the thrust bearing part and/or the thrust part. The plurality of grooves include a first groove group including a plurality of grooves having the same shape and arrangement, and a second groove group adjacent to the first groove group and including at least one groove asymmetric with respect to the grooves of the first groove group.
摘要翻译：构造流体动力轴承以稳定地支撑施加不均匀的力的旋转体，并且提供采用流体动力轴承的硬盘驱动器（HDD）。流体动力轴承包括在旋转轴的径向方向上支撑旋转轴的轴颈轴承部，形成在旋转轴的一端的推力部，面向推力部的推力轴承部，并以纵向方式支撑旋转轴旋转轴的方向，以及形成在推力轴承部和/或推力部的表面上的多个槽。多个凹槽包括具有相同形状和布置的多个凹槽的第一凹槽组和与第一凹槽组相邻并且包括相对于第一凹槽组的凹槽不对称的至少一个凹槽的第二凹槽组。

10. 发明申请

US20090268331A1 HARD DISK DRIVE AND SERVO TRACK WRITING SYSTEM FOR THE SAME 失效
标题翻译：硬盘驱动器和伺服轨迹写入系统
公开(公告)号：US20090268331A1
公开(公告)日：2009-10-29
申请号：US12431963
申请日：2009-04-29
申请人： Kyung-ho KIM , Dong-ho Oh , Ha-yong Kim , Sung-joon Han , Kwong-jo Jung
发明人： Kyung-ho KIM , Dong-ho Oh , Ha-yong Kim , Sung-joon Han , Kwong-jo Jung
IPC分类号： G11B5/09
CPC分类号： G11B5/59622 , G11B5/012 , G11B5/59666
摘要： A hard disk drive includes a housing including a base member and a cover member, a spindle motor disposed in the housing, a data storage disk disposed on the spindle motor, an actuator disposed in the housing to move a read/write head to a position on the data storage disk, a clock signal providing unit disposed on the data storage disk to provide a clock signal of the data storage disk, a position signal providing unit disposed on the actuator to provide a position signal of the actuator, and first and second windows disposed in the housing to correspond to the clock signal providing unit and the position signal providing unit.
摘要翻译：硬盘驱动器包括壳体，其包括基座部件和盖部件，设置在壳体中的主轴马达，设置在主轴马达上的数据存储盘，设置在壳体中的致动器，用于将读取/写入头移动到位置在数据存储盘上的时钟信号提供单元，设置在数据存储盘上，以提供数据存储盘的时钟信号;位置信号提供单元，设置在致动器上以提供致动器的位置信号，第一和第二设置在壳体中以对应于时钟信号提供单元和位置信号提供单元的窗口。

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