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1. 发明授权

US06754030B2 Optimal reader-to-writer offset measurement of a head in a disc drive for reduced track misregistration 有权
标题翻译：磁盘驱动器中头部的最佳读写器偏移测量用于减少轨道重合失调
公开(公告)号：US06754030B2
公开(公告)日：2004-06-22
申请号：US10029318
申请日：2001-12-21
申请人： Edmun Chian Song Seng , Xiong Liu , Aik Chuan Lim , Kay Hee Tang , Utt Heng Kan , Choon Kiat Lim
发明人： Edmun Chian Song Seng , Xiong Liu , Aik Chuan Lim , Kay Hee Tang , Utt Heng Kan , Choon Kiat Lim
IPC分类号： G11B500
CPC分类号： G11B20/20 , G11B5/59627 , G11B27/36 , G11B2220/20
摘要： A method of and apparatus for generating a reader-to-writer offset for a head positioned over a track on a disc in a disc drive having a plurality of tracks is disclosed. A reader and a writer are mounted on the head in a non-overlapping manner with a gap between the reader and the writer, which is known as the reader-to-writer offset. A disc drive controller is operably connected to the reader and the writer. The disc drive controller determines the reader-to-writer offset of the head for each track by computing the difference between a first head position x1 and a second head position x2. The first head position x1 is an optimal head position for writing information on the track and the second head position x2 is a midpoint of an off-track capability (OTC) of the head. The OTC is a portion of a track pitch over which the reader is expected to read information that is free of an incorrigible bit error such that the writer-to-reader track misregistration (TMR) is minimized as the head is radially displaced the reader-to-writer offset to read information written on the track or to write information on the track.
摘要翻译：公开了一种用于为位于具有多个磁道的磁盘驱动器中的磁盘上的轨道上的磁头产生读取器到写入器偏移的方法和装置。阅读器和写入器以不重叠的方式安装在头上，读取器和写入器之间的间隙被称为读写器偏移。磁盘驱动器控制器可操作地连接到读取器和写入器。磁盘驱动器控制器通过计算第一磁头位置x1和第二磁头位置x2之间的差来确定每个轨道的磁头的读写器偏移。第一头位置x1是用于在轨道上写入信息的最佳头部位置，而第二头部位置x2是头部的偏离轨迹能力（OTC）的中点。 OTC是轨道间距的一部分，阅读器期望阅读器读取没有不可避免的位错误的信息，使得写入器到读取器轨迹重合失调（TMR）最小化，因为磁头使读取器 - 写入器偏移以读取写在轨道上的信息或在轨道上写入信息。

2. 发明授权

US06411471B1 Low friction bearing pivot for disc drive 失效
标题翻译：用于磁盘驱动器的低摩擦轴承枢轴
公开(公告)号：US06411471B1
公开(公告)日：2002-06-25
申请号：US09607347
申请日：2000-06-30
申请人： Xiong Liu , Joseph Cheng-Tsu Liu , Choon Kiat Lim , Wai Meng Chan
发明人： Xiong Liu , Joseph Cheng-Tsu Liu , Choon Kiat Lim , Wai Meng Chan
IPC分类号： G11B598
CPC分类号： F16C21/00 , F16C2370/12 , G11B5/5526 , G11B21/16
摘要： A pivot mechanism is disclosed for mounting a rotatable actuator on a base of a disc drive. The pivot mechanism is made up of a shaft on which a housing is rotatably mounted by a lower ball bearing set and an upper bearing provided by co-acting surfaces of the shaft and the housing.
摘要翻译：公开了用于将可旋转致动器安装在盘驱动器的基座上的枢转机构。枢转机构由轴组成，壳体通过下滚珠轴承组和由轴与壳体的共同作用表面设置的上轴承可旋转地安装在轴上。

3. 发明申请

US20110255190A1 Limiting Disc Deflection 有权
标题翻译：限制光盘偏转
公开(公告)号：US20110255190A1
公开(公告)日：2011-10-20
申请号：US12762075
申请日：2010-04-16
申请人： Chuen Buan Lee , Choon Kiat Lim , Xiong Liu , Jui Jing Lim
发明人： Chuen Buan Lee , Choon Kiat Lim , Xiong Liu , Jui Jing Lim
IPC分类号： G11B33/14
CPC分类号： G11B25/043 , G11B5/4813 , G11B5/4833
摘要： A data storage apparatus and associated method is provided involving a data storage disc that is rotatable around a first axis. An actuator is rotatable around a second axis to operably position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc. A snubber is supported by the actuator and has a distal edge configured as being, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, arcuate along a first radius on one side of the reference plane and arcuate along a second radius different than the first radius on the other side of the reference plane.
摘要翻译：提供了一种数据存储装置和相关联的方法，其涉及可围绕第一轴线旋转的数据存储盘。致动器可围绕第二轴线旋转，以将数据传输构件可操作地定位在数据存储盘的最内径向位置和数据存储盘的最外侧径向存储位置之间。缓冲器由致动器支撑，并且具有远端边缘，该远端边缘相对于包括第一轴线和第二轴线的参考平面被配置为当致动器旋转以将数据传送构件定位在最内侧的径向位置时沿着第一半径在参考平面的一侧上，并且沿着与参考平面的另一侧上的第一半径不同的第二半径呈弧形。

4. 发明授权

US07352523B2 Ramp unload in disc drives 有权
标题翻译：磁盘驱动器中的斜坡卸载
公开(公告)号：US07352523B2
公开(公告)日：2008-04-01
申请号：US11213853
申请日：2005-08-30
申请人： Lee Ling Tan , Xiong Liu , Choon Kiat Lim , Mui Chong Chai
发明人： Lee Ling Tan , Xiong Liu , Choon Kiat Lim , Mui Chong Chai
IPC分类号： G11B21/02
CPC分类号： G11B21/12 , G11B5/54
摘要： Embodiments of the present invention provide for apparatus and methods for performing unload operations, including enabling read/write heads to reach a desired velocity at the ramp. Embodiments of the present invention are particularly beneficial for handheld products where low power consumption and reliability are important requirements.
摘要翻译：本发明的实施例提供了用于执行卸载操作的装置和方法，包括使得读/写头能够在斜坡处达到期望的速度。本发明的实施例对于低功耗和可靠性是重要要求的手持产品特别有利。

5. 发明授权

US06661614B2 Magnetless actuator for disc drive 失效
公开(公告)号：US06661614B2
公开(公告)日：2003-12-09
申请号：US09919547
申请日：2001-07-31
申请人： Tak Koon Ooi , Kevin Arthur Gomez , Xiong Liu , Kwee Teck Say , Choon Kiat Lim
发明人： Tak Koon Ooi , Kevin Arthur Gomez , Xiong Liu , Kwee Teck Say , Choon Kiat Lim
IPC分类号： G11B555
CPC分类号： G11B5/5569
摘要： A magnetless rotary actuator for carrying one or more read/write heads across a data bearing medium, the rotary actuator comprising: a stator including a plurality of independently controllable flux generating means for directing flux between the stator and a rotor; the rotor including means for presenting discrete regions of low magnetic reluctance to the controllable flux generating means; torque coupling means for transmitting operative torque from the rotor to the read/write head; and pivot means for supporting the torque coupling means.

6. 发明授权

US08233232B2 Method and data storage device with a snubber supported on an actuator and having a distal edge configured to have differing arcuate portions 有权
标题翻译：方法和数据存储装置，其具有支撑在致动器上的缓冲器，并且具有构造成具有不同弓形部分的远侧边缘
公开(公告)号：US08233232B2
公开(公告)日：2012-07-31
申请号：US12762075
申请日：2010-04-16
申请人： Chuen Buan Lee , Choon Kiat Lim , Xiong Liu , Jui Jing Lim
发明人： Chuen Buan Lee , Choon Kiat Lim , Xiong Liu , Jui Jing Lim
IPC分类号： G11B5/012
CPC分类号： G11B25/043 , G11B5/4813 , G11B5/4833
摘要： A data storage apparatus and associated method is provided involving a data storage disc that is rotatable around a first axis. An actuator is rotatable around a second axis to operably position a data transfer member between an innermost radial location of the data storage disc and an outermost radial storage location of the data storage disc. A snubber is supported by the actuator and has a distal edge configured as being, in relation to a reference plane including the first axis and the second axis when the actuator is rotated to position the data transfer member at the innermost radial location, arcuate along a first radius on one side of the reference plane and arcuate along a second radius different than the first radius on the other side of the reference plane.
摘要翻译：提供了一种数据存储装置和相关联的方法，其涉及可围绕第一轴线旋转的数据存储盘。致动器可围绕第二轴线旋转，以将数据传输构件可操作地定位在数据存储盘的最内径向位置和数据存储盘的最外侧径向存储位置之间。缓冲器由致动器支撑，并且具有远端边缘，该远端边缘相对于包括第一轴线和第二轴线的参考平面被配置为当致动器旋转以将数据传送构件定位在最内侧的径向位置时沿着第一半径在参考平面的一侧上，并且沿着与参考平面的另一侧上的第一半径不同的第二半径呈弧形。

7. 发明授权

US07259933B2 Velocity control system for an actuator assembly 有权
标题翻译：用于执行器组件的速度控制系统
公开(公告)号：US07259933B2
公开(公告)日：2007-08-21
申请号：US11139062
申请日：2005-05-27
申请人： Lee Ling Tan , Xiong Liu , Choon Kiat Lim
发明人： Lee Ling Tan , Xiong Liu , Choon Kiat Lim
IPC分类号： G11B5/596 , G11B21/02
CPC分类号： G11B21/12 , G11B5/54
摘要： A method for generating a velocity command for an actuator assembly is provided. The actuator assembly includes an actuator arm, which is to move over a plurality of surfaces. The method begins by providing a compensation torque for each of the plurality of surfaces. A position of the actuator arm is determined so that it may be mapped to one of the plurality of surfaces, which is the present surface over which the actuator arm is moving. A target velocity is then provided for the actuator arm and input to a controller, which generates a velocity command from the target velocity and a selected compensation torque, which is the compensation torque of the present surface.
摘要翻译：提供了一种用于产生用于致动器组件的速度指令的方法。致动器组件包括致动器臂，其将在多个表面上移动。该方法开始于为多个表面中的每一个提供补偿扭矩。确定致动器臂的位置，使得其可以映射到作为致动器臂正在移动的当前表面的多个表面中的一个表面。然后为致动器臂提供目标速度并输入到控制器，该控制器从目标速度产生速度指令，以及选择的补偿转矩（作为当前表面的补偿扭矩）。

8. 发明授权

US08699182B2 Fluid dynamic motor with reduced vibrations 有权
标题翻译：流体动力马达减震
公开(公告)号：US08699182B2
公开(公告)日：2014-04-15
申请号：US13621808
申请日：2012-09-17
申请人： Anthony Joseph Aiello , Xiong Liu , Hans Leuthold , Chuen Buan Lee , Choon Kiat Lim , Chris Michael Woldemar
发明人： Anthony Joseph Aiello , Xiong Liu , Hans Leuthold , Chuen Buan Lee , Choon Kiat Lim , Chris Michael Woldemar
IPC分类号： G11B17/02
CPC分类号： G11B19/2018
摘要： An apparatus includes a hub, a first disk, a second disk, and a spacer. The hub is supported for relative rotation about a stationary component. The first disk is mounted to the hub with a first dynamic resonance mode associated therewith. The second disk is mounted to the hub with a second dynamic resonance mode associated therewith. The spacer is positioned between the first disk and the second disk, wherein the spacer is operable to cause the first dynamic resonance mode to be different from the second dynamic resonance mode.
摘要翻译：一种装置包括轮毂，第一盘，第二盘和间隔件。轮毂被支撑用于围绕静止部件的相对旋转。第一个磁盘以与之相关联的第一个动态共振模式安装到集线器。第二个磁盘以与之相关联的第二动态共振模式安装到集线器。间隔件位于第一盘和第二盘之间，其中间隔件可操作以使第一动态共振模式与第二动态共振模式不同。

9. 发明申请

US20140078616A1 FLUID DYNAMIC MOTOR WITH REDUCED VIBRATIONS 有权
标题翻译：具有减少振动的流体动力马达
公开(公告)号：US20140078616A1
公开(公告)日：2014-03-20
申请号：US13621808
申请日：2012-09-17
申请人： Anthony Joseph Aiello , Xiong Liu , Hans Leuthold , Chuen Buan Lee , Choon Kiat Lim , Chris Michael Woldemar
发明人： Anthony Joseph Aiello , Xiong Liu , Hans Leuthold , Chuen Buan Lee , Choon Kiat Lim , Chris Michael Woldemar
IPC分类号： G11B5/012
CPC分类号： G11B19/2018
摘要： An apparatus includes a hub, a first disk, a second disk, and a spacer. The hub is supported for relative rotation about a stationary component. The first disk is mounted to the hub with a first dynamic resonance mode associated therewith. The second disk is mounted to the hub with a second dynamic resonance mode associated therewith. The spacer is positioned between the first disk and the second disk, wherein the spacer is operable to cause the first dynamic resonance mode to be different from the second dynamic resonance mode.
摘要翻译：一种装置包括轮毂，第一盘，第二盘和间隔件。轮毂被支撑用于围绕静止部件的相对旋转。第一个磁盘以与之相关联的第一个动态共振模式安装到集线器。第二个磁盘以与之相关联的第二动态共振模式安装到集线器。间隔件位于第一盘和第二盘之间，其中间隔件可操作以使第一动态共振模式与第二动态共振模式不同。

10. 发明授权

US07532437B2 Slider having transducers orientated in different directions 有权
标题翻译：滑块具有朝向不同方向的换能器
公开(公告)号：US07532437B2
公开(公告)日：2009-05-12
申请号：US11334481
申请日：2006-01-19
申请人： Xiong Liu , Joseph Cheng-Tsu Liu , Choon Kiat Lim
发明人： Xiong Liu , Joseph Cheng-Tsu Liu , Choon Kiat Lim
IPC分类号： G11B5/60
CPC分类号： G11B5/4813 , G11B5/4826 , G11B5/4976
摘要： Transducers are oriented differently to address the skew phenomenon. This enables a greater area of the medium to be utilized for data storage, thereby increasing the storage capacity of the device implementing embodiments of the present invention.
摘要翻译：传感器的方向不同以解决偏斜现象。这使得能够将更大面积的介质用于数据存储，从而增加实现本发明实施例的设备的存储容量。

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