公开(公告)号：US08842383B1

公开(公告)日：2014-09-23

申请号：US13907157

申请日：2013-05-31

Applicant: Hamid Balamane ,  John T. Contreras ,  Samir Garzon ,  Fu-Ying Huang ,  Lidu Huang ,  Barry C. Stipe

Inventor： Hamid Balamane ,  John T. Contreras ,  Samir Garzon ,  Fu-Ying Huang ,  Lidu Huang ,  Barry C. Stipe

IPC: G11B27/36

CPC classification number: G11B5/40 ,  G11B5/3106 ,  G11B5/3136 ,  G11B5/314 ,  G11B2005/0021

Abstract: Embodiments of the present invention generally relate to a HAMR device having two temperature sensors disposed between a near field transducer (NFT) and a return pole. The two temperature sensors are aligned in a cross-track direction.

Abstract translation: 本发明的实施例一般涉及具有设置在近场换能器（NFT）和返回极之间的两个温度传感器的HAMR装置。 两个温度传感器在交叉轨道方向上对齐。

公开(公告)号：US08634159B2

公开(公告)日：2014-01-21

申请号：US13427762

申请日：2012-03-22

Applicant: Fu-Ying Huang ,  Xiaotian Sun

Inventor： Fu-Ying Huang ,  Xiaotian Sun

IPC: G11B5/596

CPC classification number: G11B19/042 ,  G11B5/5582 ,  G11B5/59694

Abstract: A magnetic recording disk drive has three vibration sensors mounted to the disk drive base to provide feedforward vibration compensation signals. First and second spaced-apart sensors are aligned generally parallel to a radius from the disk rotational axis to a head position on the disk between the inside diameter position (hID) and outside diameter position (hOD) for detecting rotational vibration about the disk rotational axis and linear vibration in the cross-track direction. A third vibration sensor is aligned generally orthogonal to the primary axes of the first and second vibration sensors for detecting primarily linear vibrations in the along-the-track or track circumferential direction. The disk drive servo control processor calculates, from the signals from the three sensors, a rotational vibration feedforward signal, a radial linear vibration feedforward signal, and a circumferential linear vibration feedforward signal which are summed with the actuator control signal to compensate for the vibrations.

Abstract translation: 磁记录盘驱动器具有安装在磁盘驱动器底座上的三个振动传感器，以提供前馈振动补偿信号。 第一和第二间隔开的传感器大致平行于从盘旋转轴线到圆盘上的头部位置的半径，内径位置（hID）和外径位置（hOD）之间用于检测围绕盘旋转轴线的旋转振动 和横向方向的线性振动。 第三振动传感器大致正交于第一和第二振动传感器的主轴线，用于主要沿着轨道或轨道圆周方向检测线性振动。 磁盘驱动器伺服控制处理器根据来自三个传感器的信号，计算与致动器控制信号相加以补偿振动的旋转振动前馈信号，径向线性振动前馈信号和圆周线性振动前馈信号。

公开(公告)号：US08416646B2

公开(公告)日：2013-04-09

申请号：US13190410

申请日：2011-07-25

Applicant: Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry Cushing Stipe ,  Timothy Carl Strand ,  Petrus Antonius VanDerHeijden

Inventor： Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry Cushing Stipe ,  Timothy Carl Strand ,  Petrus Antonius VanDerHeijden

IPC: G11B11/00

CPC classification number: G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A thermally-assisted recording (TAR) disk drive uses “shingled” recording and a rectangular waveguide as a “wide-area” heat source. The waveguide generates a generally elliptically-shaped optical spot that heats an area of the recording layer extending across multiple data tracks. The waveguide core has an aspect ratio (cross-track width to along-the track thickness) that achieves the desired size of the heated area while locating the peak optical intensity close to the trailing edge of the write pole tip where writing occurs. The large cross-track width of the waveguide core increases the volume of recording layer heated by the optical spot, which reduces the rate of cooling. This moves the peak temperature point of the heated area closer to the write pole tip and reduces the temperature drop between the peak temperature and the temperature at the trailing edge of the write pole tip where writing occurs.

Abstract translation: 热辅助记录（TAR）磁盘驱动器使用带状闪烁的记录和矩形波导作为广域热源。 波导产生大致椭圆形的光点，其加热跨越多个数据轨道的记录层的区域。 波导芯具有实现加热区域的期望尺寸的纵横比（沿轨道厚度的横越轨道宽度），同时将峰值光强度定位在写入发生时写入磁极尖端的后缘附近。 波导芯的大的横向轨道宽度增加了由光点加热的记录层的体积，这降低了冷却速度。 这使得加热区域的峰值温度点更接近写极端，并且降低峰值温度与写入磁极尖端的后缘处的温度之间的温度下降。

公开(公告)号：US08339732B2

公开(公告)日：2012-12-25

申请号：US12881017

申请日：2010-09-13

Applicant: Jia-Yang Juang ,  Fu-Ying Huang ,  Takashi Tomita

Inventor： Jia-Yang Juang ,  Fu-Ying Huang ,  Takashi Tomita

IPC: G11B33/14

CPC classification number: G11B25/043 ,  G11B33/025

Abstract: Approaches for a hard-disk drive (HDD) baseplate comprising a recessed region that provides additional clearance for a disk. The protective enclosure of the HDD comprises a baseplate. The surface of the baseplate, which opposes a magnetic-recording disk, comprises a recessed region near the outer diameter (OD) of the magnetic-recording disk. The recessed region prevents the disk from being damaged through inadvertent physical contact with the baseplate, which may arise when the HDD receives a mechanical shock. The recessed region may be designed to minimize the damage to the disk if physical contact between the disk and the baseplate does occur. The recessed region may have a variety of shapes, such as a circular indentation or one or more non-contiguous regions in the baseplate where physical contact between the disk and the baseplate is deemed likely to occur.

Abstract translation: 硬盘驱动器（HDD）基板的方法包括为磁盘提供额外间隙的凹陷区域。 HDD的保护外壳包括底板。 基板的与磁记录盘相对的表面包括靠近磁记录盘的外径（OD）的凹陷区域。 凹陷区域通过与基板的无意物理接触来防止盘损坏，这在HDD接收到机械冲击时可能发生。 凹陷区域可以被设计成使得当盘和基板之间的物理接触确实发生时对盘的损坏最小化。 凹陷区域可以具有各种形状，例如基底板中的圆形凹陷或一个或多个非连续区域，其中认为盘和基板之间的物理接触可能发生。

公开(公告)号：US20120318841A1

公开(公告)日：2012-12-20

申请号：US13361062

申请日：2012-01-30

Applicant: Angi LIU ,  Fu-Ying HUANG

Inventor： Angi LIU ,  Fu-Ying HUANG

IPC: B25C1/04

CPC classification number: B25C1/047

Abstract: A pneumatic nailing machine includes a piston and driver assembly movably disposed in a striking cylinder for driving a fastener out of a front end of a main housing when primary pressured air is supplied to the cylinder, a head valve forced open when an active pressure generated as a result of flow of the primary pressured air is higher than a counter pressure in a counter-pressure zone, and an air valve unit convertible, in response to a throttling action applied to supply of secondary pressured air into the counter pressure zone, between a led-through state, where the head valve is kept unmoved in a closed position, and a shut-off state, where the flow of the secondary pressured air is disrupted thereby forcing the head valve forced open.

Abstract translation: 一种气动打钉机包括活塞和驱动器组件，该活塞和驱动器组件可移动地设置在打击气缸中，用于当初级加压空气供应到气缸时将紧固件从主壳体的前端驱出，当作为 初级加压空气的流动的结果高于反压区域中的反压力，并且空气阀单元响应于用于将二次加压空气供应到反压区域中的节流作用而可转换为 通过状态，其中头阀在关闭位置保持不动，并且关闭状态，其中二次加压空气的流动被破坏，从而迫使头阀被强制打开。

公开(公告)号：US08223461B2

公开(公告)日：2012-07-17

申请号：US11904928

申请日：2007-09-28

Applicant: Fu-Ying Huang ,  Jifang Tian

Inventor： Fu-Ying Huang ,  Jifang Tian

IPC: G11B5/56

CPC classification number: G11B5/4826 ,  G11B5/483 ,  G11B5/4873

Abstract: A pure rotary microactuator comprising a spring assembly etched within a silicon substrate is disclosed. A first piezoelectric device is coupled with a first portion of the spring assembly and a second piezoelectric device coupled with a second portion of the spring assembly. The first piezoelectric device changes shape in response to an electrical input signal, and this change in shape provides a first push force to the first portion of the spring assembly in a first direction. The second piezoelectric device also changes shape in response to the electrical input signal, and this change in shape provides a second push force to the second portion in a second direction, which is different from the first direction. The combination of the first and the second push forces rotates the spring assembly with respect to the silicon substrate.

Abstract translation: 公开了一种包括蚀刻在硅衬底内的弹簧组件的纯旋转微致动器。 第一压电装置与弹簧组件的第一部分耦合，以及与弹簧组件的第二部分联接的第二压电装置。 第一压电装置响应于电输入信号改变形状，并且这种形状变化在第一方向上向弹簧组件的第一部分提供第一推力。 第二压电装置还响应于电输入信号而改变形状，并且这种形状变化在与第一方向不同的第二方向上向第二部分提供第二推力。 第一和第二推力的组合使弹簧组件相对于硅衬底转动。

公开(公告)号：US07976221B2

公开(公告)日：2011-07-12

申请号：US11787904

申请日：2007-04-17

Applicant: Fu-Ying Huang ,  Jifang Tian

Inventor： Fu-Ying Huang ,  Jifang Tian

IPC: F16C32/06

CPC classification number: F16C17/107 ,  F16C33/107 ,  F16C2370/12

Abstract: A system and method for improving lubrication in a fluid dynamic bearing are disclosed. A fluid dynamic bearing is formed. The fluid dynamic bearing comprises a shaft having an axis of rotation and a surface comprising a first groove at a first depth and a second groove at a second depth, wherein the first and second grooves are for supporting a film of lubricating fluid. The fluid dynamic bearing further includes a hub having an axis coincident to the axis of rotation and a complimentary surface juxtaposed to the shaft which is conducive to supporting the lubricating fluid such that the shaft is rotatably retained.

Abstract translation: 公开了一种用于改善流体动力轴承中的润滑的系统和方法。 形成流体动力轴承。 流体动力轴承包括具有旋转轴线的轴和包括在第一深度处的第一凹槽和在第二深度处的第二凹槽的表面，其中第一和第二凹槽用于支撑润滑流体膜。 流体动力轴承还包括具有与旋转轴线重合的轴线的毂和与轴并置的互补表面，其有利于支撑润滑流体，使得轴可旋转地保持。

公开(公告)号：US07848058B2

公开(公告)日：2010-12-07

申请号：US11897699

申请日：2007-08-30

Applicant: Fu-Ying Huang ,  Jifang Tian

Inventor： Fu-Ying Huang ,  Jifang Tian

IPC: G11B21/02

CPC classification number: G11B5/5569

Abstract: A voice coil for a voice coil motor of a hard disk drive comprises an inner surface of the voice coil, which bounds a central space of the voice coil. A first outer surface of the voice coil is substantially parallel to a second outer surface of the voice coil. A constrained layer damper is attached to the inner surface of the voice coil by a coupler. The constrained layer damper comprises a first constraining layer coupled to a first surface of a viscoelastic damping layer. A second constraining layer is coupled to a second surface of the viscoelastic damping layer. The constrained layer damper is curved in a direction that is substantially perpendicular to the first outer surface of the voice coil and the second outer surface of the voice coil.

Abstract translation: 用于硬盘驱动器的音圈电机的音圈包括音圈的内表面，其限定音圈的中心空间。 音圈的第一外表面基本上平行于音圈的第二外表面。 约束层阻尼器通过耦合器连接到音圈的内表面。 约束层阻尼器包括耦合到粘弹性阻尼层的第一表面的第一约束层。 第二约束层耦合到粘弹性阻尼层的第二表面。 约束层阻尼器在基本上垂直于音圈的第一外表面和音圈的第二外表面的方向上弯曲。

公开(公告)号：US20100067357A1

公开(公告)日：2010-03-18

申请号：US12211569

申请日：2008-09-16

Applicant: Fu-Ying Huang ,  Tetsuo Semba ,  Xiaotian Sun

Inventor： Fu-Ying Huang ,  Tetsuo Semba ,  Xiaotian Sun

IPC: G11B17/00

CPC classification number: G11B5/5582 ,  G11B5/59627

Abstract: A disk drive and a method for operating the disk drive compensates for rotational vibration (RV) by adaptively modifying the gains of two separate linear vibration sensors so the sensor gains are optimal under any given condition. The two sensors provide two signals S1, S2, respectively, to the disk drive's servo control processor that generates the control signal to the voice coil motor (VCM) actuator that controls the positioning of the read/write head. The processor uses S1, S2 and the head position error signal (PES) as inputs to run an adaptive RV feedforward (RVFF) algorithm. The adaptive RVFF algorithm takes the PES and sensor outputs S1 and S2 as inputs, mathematically determines the required correction to the sensor gain factors k1 and k2, respectively, and then adjusts the gain factors k1 and k2 accordingly. Each signal S1, S2 is then modified by its adjusted gain factor k1, k2, respectively. The difference in the modified S1, S2 signals is the RVFF signal that is summed with the control signal to generate the RV-compensated control signal to the VCM actuator.

Abstract translation: 磁盘驱动器和用于操作磁盘驱动器的方法通过自适应地修改两个单独的线性振动传感器的增益来补偿旋转振动（RV），使得传感器增益在任何给定条件下是最佳的。 两个传感器分别向磁盘驱动器的伺服控制处理器提供两个信号S1，S2，该伺服控制处理器产生对控制读/写头定位的音圈电机（VCM）致动器的控制信号。 处理器使用S1，S2和头位置误差信号（PES）作为输入来运行自适应RV前馈（RVFF）算法。 自适应RVFF算法将PES和传感器输出S1和S2作为输入，分别数学地确定传感器增益因子k1和k2所需的校正，然后相应地调整增益因子k1和k2。 然后，通过其调整的增益因子k1，k2来修改每个信号S1，S2。 修改后的S1，S2信号的差异是将RVFF信号与控制信号相加，以产生向VCM致动器的RV补偿的控制信号。

公开(公告)号：US20090268335A1

公开(公告)日：2009-10-29

申请号：US12110235

申请日：2008-04-25

Applicant: Fu-Ying HUANG ,  Jia-Yang Juang ,  Timothy C. Strand

Inventor： Fu-Ying HUANG ,  Jia-Yang Juang ,  Timothy C. Strand

IPC: G11B21/02

CPC classification number: G11B5/3136 ,  G11B5/3133 ,  G11B5/40 ,  G11B5/6005 ,  G11B5/6064 ,  G11B5/607

Abstract: A method for neutralizing the flying height sensitivity associated with thermal pole-tip protrusion (T-PTP) of an air bearing slider comprises creating head material data and air bearing surface (ABS) compensation data, based on which a head/ABS design is created. The head material data comprises at least one material property that is dependent on the manner in which the material is fabricated, such as the coefficient of thermal expansion of a material deposited using a certain deposition process. The ABS compensation data comprises data about how respective ABS features affect air bearing pressure and, therefore, ABS compensation. A protrusion profile is determined for the head/ABS design, and whether or not this protrusion profile meets particular design criteria is then determined. The head/ABS creating and determining process can be iterated if necessary to arrive at a head/ABS design which provides neutral flying height sensitivity to a range of operational temperatures.

Abstract translation: 用于中和与空气轴承滑块的热极尖突起（T-PTP）相关联的飞行高度灵敏度的方法包括创建头部材料数据和空气轴承表面（ABS）补偿数据，基于该数据创建头部/ ABS设计 。 头材料数据包括取决于材料制造方式的至少一种材料性质，例如使用某种沉积工艺沉积的材料的热膨胀系数。 ABS补偿数据包括有关ABS特性如何影响空气轴承压力以及因此ABS补偿的数据。 确定头/ ABS设计的突起轮廓，然后确定该突起轮廓是否满足特定的设计标准。 如果需要，头/ ABS制造和确定过程可以重复以获得头/ ABS设计，其提供对一系列操作温度的中立飞行高度灵敏度。