公开(公告)号：US07154689B1

公开(公告)日：2006-12-26

申请号：US10945371

申请日：2004-09-20

申请人： Stanley H. Shepherd ,  Yu Sun ,  Lin Guo ,  John VanLaanen

发明人： Stanley H. Shepherd ,  Yu Sun ,  Lin Guo ,  John VanLaanen

IPC分类号： G11B5/09

CPC分类号： G11B5/59688

摘要： Methods for making a disk drive, apparatus for writing servo bursts on a disk, and disk drive apparatus are provided. The disk drive includes a disk and transducer adjacent to the disk. The transducer includes a read element and a write element. A width of the read element is determined. A servo track pitch is determined based on the read element width. Servo bursts are written in servo tracks on the disk with the write element based on the servo track pitch.

摘要翻译： 提供了制造磁盘驱动器的方法，用于在盘上写入伺服脉冲串的装置以及磁盘驱动装置。 磁盘驱动器包括与磁盘相邻的磁盘和传感器。 换能器包括读取元件和写入元件。 读取元素的宽度被确定。 基于读取的元件宽度确定伺服轨道间距。 伺服脉冲串写入磁盘上的伺服磁道，其中写入元件基于伺服磁道间距。

公开(公告)号：US07149044B1

公开(公告)日：2006-12-12

申请号：US10895467

申请日：2004-07-20

申请人： Yuan Chen ,  Brian Rigney ,  Lin Guo ,  Don Brunnett ,  Yu Sun ,  Stanley H. Shepherd

发明人： Yuan Chen ,  Brian Rigney ,  Lin Guo ,  Don Brunnett ,  Yu Sun ,  Stanley H. Shepherd

IPC分类号： G11B5/09

CPC分类号： B82Y10/00 ,  G11B5/59677 ,  G11B5/743

摘要： Track pitch for writing tracks on a disk is determined based on an available stroke across the disk. The available stroke is identified by searching across the disk for where information can be written and read. The track pitch is determined for writing tracks on the disk based on the available stroke across the disk. Tracks are written on the disk based on the determined track pitch.

摘要翻译： 基于磁盘上的可用笔划确定在磁盘上写入轨迹的轨距。 通过在磁盘上搜索可以写入和读取信息的位置来识别可用笔画。 确定磁道间距是根据磁盘上可用的行程在磁盘上写入磁道。 基于确定的轨道间距将磁道写入磁盘。

公开(公告)号：US07679851B1

公开(公告)日：2010-03-16

申请号：US11122838

申请日：2005-05-05

申请人： Yu Sun ,  Don Brunnett ,  Lin Guo

发明人： Yu Sun ,  Don Brunnett ,  Lin Guo

IPC分类号： G11B5/09

CPC分类号： G11B5/59616 ,  G11B5/012

摘要： Methods and structure for switching heads on a multiple recording surface disk drive that uses bi-directional radial writing toward a zipper zone at a middle diameter. When switching from a first head to a second head, features and aspects hereof assure that the second head will not be positioned in the zipper zone of the corresponding second surface and hence will not lose track following servo synchronization and control. In one aspect, added buffer or guard tracks having valid servo information but no data are added on either side of the zipper zone to assure that under the worst-case misalignment of surfaces the second head will not be positioned in its corresponding zipper zone when switching from the first head.

摘要翻译： 在多个记录表面磁盘驱动器上切换磁头的方法和结构，其使用向中间直径的拉链区域进行双向径向书写。 当从第一头切换到第二头部时，其特征和方面确保第二头部不会被定位在相应的第二表面的拉链区域中，因此在伺服同步和控制之后不会失去跟踪。 在一个方面，在拉链区域的任一侧添加了具有有效的伺服信息而没有数据的附加的缓冲器或保护轨道，以确保在最差的表面未对准的情况下，当切换时，第二头部将不位于相应的拉链区域 从第一个头。

公开(公告)号：US07414809B2

公开(公告)日：2008-08-19

申请号：US11750820

申请日：2007-05-18

申请人： S. Craig Smith ,  Stan Shepherd ,  Yu Sun ,  Yuan Roy Chen ,  Lin Guo

发明人： S. Craig Smith ,  Stan Shepherd ,  Yu Sun ,  Yuan Roy Chen ,  Lin Guo

IPC分类号： G11B5/596

CPC分类号： G11B5/59633 ,  G11B5/59661 ,  G11B5/59666

摘要： In accordance with various embodiments, initial servo data are written to a storage medium as a series of radially overlapped spiral segments. Final servo data are thereafter written to the medium while concurrently servoing on said overlapped segments.

摘要翻译： 根据各种实施例，初始伺服数据作为一系列径向重叠的螺旋段被写入存储介质。 最后伺服数据此后被写入介质，同时在所述重叠段上进行伺服。

公开(公告)号：US07230789B1

公开(公告)日：2007-06-12

申请号：US11102467

申请日：2005-04-08

申请人： Don Brunnett ,  Yu Sun ,  Lin Guo

发明人： Don Brunnett ,  Yu Sun ,  Lin Guo

IPC分类号： G11B21/02

CPC分类号： G11B5/59633 ,  G11B5/59661

摘要： The present invention is directed to a method and apparatus for performing a self-servo write operation in a disk drive. In one embodiment, the disk drive includes a disk surface having a read head and a write head associated therewith. Spiral servo information is written onto the disk surface using a servo track writer. The read head reads the spiral servo information and is used to position the write head, which writes a small band of final servo information onto the disk surface. The small band of final servo information may be embedded servo information. Importantly, the small band of final servo information is not written using the servo track writer. The write head is also used to write self-servo write instructions into the small band of final servo information. Subsequently, the self-servo write instructions are read and a self-servo write operation is performed using the spiral servo information.

摘要翻译： 本发明涉及一种用于在磁盘驱动器中执行自伺服写入操作的方法和装置。 在一个实施例中，盘驱动器包括具有读头的盘表面和与其相关联的写头。 使用伺服记录器将螺旋伺服信息写入磁盘表面。 读头读取螺旋伺服信息，并用于将写入头定位在磁盘表面上，将写入磁头写入最小伺服信息的一小段。 最终伺服信息的小带可以是嵌入式伺服信息。 重要的是，最终的伺服信息的小带没有使用伺服记录器写入。 写头还用于将自伺服写指令写入最终伺服信息的小波段。 随后，读取自伺服写指令，并使用螺旋伺服信息执行自伺服写操作。

公开(公告)号：US07215499B1

公开(公告)日：2007-05-08

申请号：US11180283

申请日：2005-07-13

申请人： Yunfeng Li ,  Yu Sun ,  Lin Guo ,  Xiaoping Hu

发明人： Yunfeng Li ,  Yu Sun ,  Lin Guo ,  Xiaoping Hu

IPC分类号： G11B21/02

CPC分类号： G11B5/5547 ,  G11B5/5552

摘要： A disk drive and method are provided for controlling seeking of a transducer that is adjacent to a rotatable data storage disk in a disk drive. The disk drive includes an actuator for positioning the transducer relative to the disk, the method comprising. The actuator is controlled to move the transducer toward a target track on the disk during an initial phase of a seek mode during which the transducer is primarily accelerated toward the target track. During a settle phase of the seek mode which follows the initial phase the actuator is controlled to settle the transducer onto the target track. An initial position, an initial velocity, and an initial acceleration of the transducer are determined at a phase switch time at about when control of the actuator switches from the initial phase to the settle phase of the seek mode. Feed-forward control information is generated based on the determined initial position, initial velocity, and initial acceleration of the transducer. The actuator is controlled responsive to the feed-forward control information to settle the transducer onto the target track during the settle phase of the seek mode.

摘要翻译： 提供了一种磁盘驱动器和方法，用于控制寻找与磁盘驱动器中的可旋转数据存储盘相邻的换能器。 磁盘驱动器包括用于相对于盘定位换能器的致动器，该方法包括。 在寻像模式的初始阶段期间，致动器被控制以将传感器移向盘上的目标轨道，在该模式期间，换能器主要朝向目标轨道加速。 在跟随初始阶段的搜索模式的稳定阶段期间，致动器被控制以将换能器定位到目标轨道上。 在致动器的控制从寻找模式的初始阶段到稳定阶段切换的时刻，在相位切换时刻确定换能器的初始位置，初始速度和初始加速度。 基于确定的换能器的初始位置，初始速度和初始加速度产生前馈控制信息。 响应于前馈控制信息控制致动器，以在搜索模式的稳定阶段期间将换能器稳定在目标轨道上。

公开(公告)号：US07116513B1

公开(公告)日：2006-10-03

申请号：US10999552

申请日：2004-11-30

申请人： Yu Sun ,  Lin Guo ,  Xiaoping Hu

发明人： Yu Sun ,  Lin Guo ,  Xiaoping Hu

IPC分类号： G11B5/596

CPC分类号： G11B5/5582 ,  G11B19/04

摘要： A disk drive includes a transducer and a rotatable disk, which includes a plurality of tracks. A vibration state of the transducer relative to the disk is determined. The transducer is positioned relative one of the tracks based on a compensation scheme that varies based on the determination of the vibration state. The compensation scheme may be varied by selecting among output of two or more compensators, based on the determined of the vibration state of the transducer, to control positioning of the transducer. The compensation scheme may alternatively, or additionally, be varied by varying a contribution from a vibration state actuator compensator to the control of positioning of the transducer. The vibration state actuator compensator is configured to improve transducer track following while the transducer is subjected to vibration.

摘要翻译： 磁盘驱动器包括换能器和可旋转盘，其包括多个轨道。 确定换能器相对于盘的振动状态。 基于基于振动状态的确定而变化的补偿方案，换能器相对于轨道定位。 可以通过基于确定的换能器的振动状态来选择两个或多个补偿器的输出来改变补偿方案，以控制换能器的定位。 可以通过改变从振动状态致动器补偿器对转换器的定位的控制的贡献来替代或另外地改变补偿方案。 振动状态致动器补偿器配置成在传感器经受振动时改善传感器轨迹跟随。

公开(公告)号：US07843666B2

公开(公告)日：2010-11-30

申请号：US11790564

申请日：2007-04-26

申请人： MingGao Yao ,  YiRu Xie ,  Yu Sun ,  Lin Guo

发明人： MingGao Yao ,  YiRu Xie ,  Yu Sun ,  Lin Guo

IPC分类号： G11B5/48

CPC分类号： G11B5/4853

摘要： A suspension for a HGA includes a suspension flexure and an out rigger. The suspension flexure has a tongue region having a first flexure part in a tip portion thereof for mounting a trailing edge of a slider and a PZT mounting region for mounting PZT elements. One end of the out rigger is connected to the suspension flexure, and the other end of the out rigger has a rigger support portion which extends above the tongue region so as to support the leading edge of the slider. The structure of the out rigger is capable of stiffening the tongue region of the suspension flexure and, in turns, avoiding the deformation problem and the dimple separation problem during the manufacturing process or in vibration or shock events. The invention also discloses a HGA with the suspension, manufacturing methods of the HGA and a disk drive unit having such HGA.

摘要翻译： 用于HGA的悬架包括悬架挠曲件和出料器。 悬架挠曲件具有舌部区域，其顶端部具有用于安装滑动件的后缘的第一挠曲部分和用于安装PZT元件的PZT安装区域。 出料装置的一端连接到悬架挠曲件上，出料装置的另一端具有在舌部上方延伸以支撑滑块的前缘的装备支撑部分。 该装置的结构能够加强悬架挠曲的舌部区域，并且反过来避免在制造过程中或振动或冲击事件期间的变形问题和凹坑分离问题。 本发明还公开了一种HGA，具有HGA的悬挂，制造方法和具有这种HGA的盘驱动单元。

公开(公告)号：US20090195938A1

公开(公告)日：2009-08-06

申请号：US12081699

申请日：2008-04-18

申请人： MingGao Yao ,  Lin Guo ,  Yu Sun

发明人： MingGao Yao ,  Lin Guo ,  Yu Sun

IPC分类号： G11B5/56

CPC分类号： G11B5/4826 ,  G11B5/483 ,  G11B5/4873 ,  G11B5/5552

摘要： A PZT micro-actuator for a head gimbal assembly includes a pair of separate PZT elements and each PZT element has a body and a plurality of electrical pads. The body has at least two electrode-piezoelectric combination layers laminated together. The at least two electrode-piezoelectric combination layers are physically connected with but electrically isolated from each other. Each electrode-piezoelectric combination layer has at least two of the electrical pads thereon. The electrical pads extend out from the body of the corresponding PZT element. All the electrical pads of each PZT element are offset a predetermined distance therebetween to be electrically isolated. The present invention also discloses a head gimbal assembly (HGA) with the PZT micro-actuator, an assembling method for the head gimbal assembly and a disk drive unit having such HGA.

摘要翻译： 用于头万向节组件的PZT微致动器包括一对单独的PZT元件，并且每个PZT元件具有主体和多个电垫。 主体具有层叠在一起的至少两个电极 - 压电组合层。 所述至少两个电极 - 压电组合层在物理上彼此连接但是电隔离。 每个电极 - 压电组合层在其上具有至少两个电焊垫。 电焊盘从相应的PZT元件的主体延伸出来。 每个PZT元件的所有电焊垫偏移预定距离以进行电隔离。 本发明还公开了一种具有PZT微型致动器的头部万向节组件（HGA），用于头部万向节组件的组装方法和具有这种HGA的盘驱动单元。

公开(公告)号：US20080247078A1

公开(公告)日：2008-10-09

申请号：US11783183

申请日：2007-04-06

申请人： MingGao Yao ,  Lin Guo ,  Yu Sun

发明人： MingGao Yao ,  Lin Guo ,  Yu Sun

IPC分类号： G11B21/02

CPC分类号： G11B5/6058 ,  G11B5/4846 ,  G11B5/4873

摘要： Altitude sensing systems and/or methods for fly height adjustment in disk drive devices are provided. In certain example embodiments, a PZT-type pressure and/or altitude sensor may be located on the side of the disk drive proximate to the disk edge. When the disk rotates, the air flow generated by the disk will deform the PZT element of the sensor. The PZT element will generate a voltage in response to this deformation. Calibrations may be performed to compensate for altitude changes (e.g. the air inside of the disk drive will become thin and the air resistance will be reduced at higher altitudes). Also, the output sensitivity of the PZT element may change with the altitude change. After the altitude is sensed by the PZT element in the sensor, the servo motor may use this signal to calculate and/or adjust the dynamic fly height (DFH) and/or fly height of the read/write head.

摘要翻译： 提供了用于磁盘驱动装置中的高度感测系统和/或飞行高度调整方法。 在某些示例性实施例中，PZT型压力和/或高度传感器可以位于磁盘驱动器的靠近磁盘边缘的一侧。 当盘旋转时，由盘产生的空气流将使传感器的PZT元件变形。 PZT元件将产生响应于该变形的电压。 可以进行校准以补偿高度变化（例如，磁盘驱动器内部的空气将变薄并且在较高海拔处降低空气阻力）。 此外，PZT元件的输出灵敏​​度可能随高度变化而变化。 在传感器中PZT元件检测到高度之后，伺服电机可以使用该信号来计算和/或调整读/写头的动态飞行高度（DFH）和/或飞行高度。