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1. 发明授权

US06392845B1 Magnet design for active damping of disk drive actuator 失效
标题翻译：用于磁盘驱动器执行器主动阻尼的磁铁设计
公开(公告)号：US06392845B1
公开(公告)日：2002-05-21
申请号：US09608516
申请日：2000-06-30
申请人： Shingo Tsuda , Eiji Soga , Kiyoshi Satoh , Fu-Ying Huang , Tetsuo Senba
发明人： Shingo Tsuda , Eiji Soga , Kiyoshi Satoh , Fu-Ying Huang , Tetsuo Senba
IPC分类号： G11B548
CPC分类号： G11B5/4833 , H02K41/0358
摘要： A stator magnet according to a first embodiment of the present invention forms a voice coil motor with a closed coil. The closed coil is supported by an actuator arm in a rotatable manner and at a predetermined rotation angle. The closed coil has first and second side edges that extend along different lines in radial directions whose center is a center of rotation of the actuator arm. It also has an outer edge that connects edges of outer sides of the first and second side edges with viewed from the radial direction, and extends along an arc whose center is the center of rotation. A first magnetic pole region is located within a moving area of the first side edge to act on the first side edge. A second magnetic pole region is located within a moving area of the second side edge to act on the second side edge. The polarity of the second magnetic pole region is opposite to the polarity of the first magnetic pole region. A third magnetic pole region is located within a moving area of the outer edge to act on the outer edge. The polarity of the third magnetic pole region is the same as the polarity of the first magnetic pole region.
摘要翻译：根据本发明的第一实施例的定子磁体形成具有闭合线圈的音圈电动机。闭合线圈由致动器臂以可旋转的方式和预定的旋转角度支撑。闭合线圈具有第一和第二侧边缘，该第一和第二侧边缘沿径向方向沿着不同的线延伸，其中心是致动器臂的旋转中心。它还具有从径向观察连接第一和第二侧边缘的外侧的边缘的外边缘，并且沿着其中心是旋转中心的弧线延伸。第一磁极区域位于第一侧边缘的移动区域内以作用在第一侧边缘上。第二磁极区域位于第二侧边缘的移动区域内以作用在第二侧边缘上。第二磁极区域的极性与第一磁极区域的极性相反。第三磁极区域位于外边缘的移动区域内以作用于外边缘。第三磁极区域的极性与第一磁极区域的极性相同。

2. 发明授权

US06614613B1 Phase technique for active damping in a servo-controlled actuator 失效
标题翻译：伺服控制执行机构主动阻尼相位技术
公开(公告)号：US06614613B1
公开(公告)日：2003-09-02
申请号：US09526261
申请日：2000-03-16
申请人： Fu-Ying Huang , Naoyuki Kagami , Tetsuo Semba , Eiji Soga , Shingo Tsuda
发明人： Fu-Ying Huang , Naoyuki Kagami , Tetsuo Semba , Eiji Soga , Shingo Tsuda
IPC分类号： G11B2110
CPC分类号： G05D19/02 , G11B5/10 , G11B5/5582 , G11B5/59627
摘要： An active control mechanism and method for stabilizing a servo-controlled actuator system such as an actuator system in a data recording disk drive by compensating the vibrational modes of the actuator's arm assembly. The control mechanism has a sensing arrangement which can include one or more individual sensors attached to the actuator at locations where they generate signals in phase with the vibrational modes, and especially with all the low-frequency major vibrational modes, of the arm assembly. A control mechanism derives from the signals an adjustment signal consisting of three corrective terms—a stiffening correction, an active damping correction, and an inertia correction by a phase correction. Furthermore, high-frequency out-of-phase modes can be stabilized by appropriately shifting the phase of the signals. The adjustment signal is used in the feedback control loop to stabilize the actuator system.
摘要翻译：一种主动控制机构和方法，用于通过补偿致动器臂组件的振动模式来稳定伺服控制致动器系统，例如数据记录盘驱动器中的致动器系统。控制机构具有感测装置，其可以包括一个或多个单独的传感器，其附接到致动器的位置，在那里它们与臂组件的振动模式，特别是与所有低频主要振动模式相同地产生信号。控制机构从信号中获得由三个校正项组成的调整信号 - 加强校正，主动阻尼校正和通过相位校正的惯性校正。此外，可以通过适当地移位信号的相位来稳定高频异相模式。调节信号用于反馈控制回路以稳定执行器系统。

3. 发明授权

US08842383B1 Laser power sensor with dual temperature sensor 有权
标题翻译：带双温度传感器的激光功率传感器
公开(公告)号：US08842383B1
公开(公告)日：2014-09-23
申请号：US13907157
申请日：2013-05-31
申请人： Hamid Balamane , John T. Contreras , Samir Garzon , Fu-Ying Huang , Lidu Huang , Barry C. Stipe
发明人： Hamid Balamane , John T. Contreras , Samir Garzon , Fu-Ying Huang , Lidu Huang , Barry C. Stipe
IPC分类号： G11B27/36
CPC分类号： G11B5/40 , G11B5/3106 , G11B5/3136 , G11B5/314 , G11B2005/0021
摘要： 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.
摘要翻译：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。

4. 发明授权

US08634159B2 Magnetic recording disk drive with three sensors for rotational and linear vibration compensation 有权
标题翻译：具有三个传感器的磁记录磁盘驱动器用于旋转和线性振动补偿
公开(公告)号：US08634159B2
公开(公告)日：2014-01-21
申请号：US13427762
申请日：2012-03-22
申请人： Fu-Ying Huang , Xiaotian Sun
发明人： Fu-Ying Huang , Xiaotian Sun
IPC分类号： G11B5/596
CPC分类号： G11B19/042 , G11B5/5582 , G11B5/59694
摘要： 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.
摘要翻译：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。

5. 发明授权

US08416646B2 Magnetic recording disk drive with shingled writing and rectangular optical waveguide for wide-area thermal assistance 有权
标题翻译：磁记录磁盘驱动器带有写字和矩形光波导用于广域热辅助
公开(公告)号：US08416646B2
公开(公告)日：2013-04-09
申请号：US13190410
申请日：2011-07-25
申请人： Fu-Ying Huang , Jia-Yang Juang , Hal J. Rosen , Barry Cushing Stipe , Timothy Carl Strand , Petrus Antonius VanDerHeijden
发明人： Fu-Ying Huang , Jia-Yang Juang , Hal J. Rosen , Barry Cushing Stipe , Timothy Carl Strand , Petrus Antonius VanDerHeijden
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： 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.
摘要翻译：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。

6. 发明授权

US08339732B2 Baseplate with recessed region in a hard-disk drive (HDD) 有权
标题翻译：带硬盘驱动器（HDD）凹槽区域的底板
公开(公告)号：US08339732B2
公开(公告)日：2012-12-25
申请号：US12881017
申请日：2010-09-13
申请人： Jia-Yang Juang , Fu-Ying Huang , Takashi Tomita
发明人： Jia-Yang Juang , Fu-Ying Huang , Takashi Tomita
IPC分类号： G11B33/14
CPC分类号： G11B25/043 , G11B33/025
摘要： 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.
摘要翻译：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。

7. 发明授权

US08223461B2 Pure rotary microactuator 有权
标题翻译：纯旋转微致动器
公开(公告)号：US08223461B2
公开(公告)日：2012-07-17
申请号：US11904928
申请日：2007-09-28
申请人： Fu-Ying Huang , Jifang Tian
发明人： Fu-Ying Huang , Jifang Tian
IPC分类号： G11B5/56
CPC分类号： G11B5/4826 , G11B5/483 , G11B5/4873
摘要： 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.
摘要翻译：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。

8. 发明授权

US07976221B2 System and method for improving lubrication in a fluid dynamic bearing near the contact region 有权
标题翻译：用于改善接触区域附近的流体动力轴承的润滑的系统和方法
公开(公告)号：US07976221B2
公开(公告)日：2011-07-12
申请号：US11787904
申请日：2007-04-17
申请人： Fu-Ying Huang , Jifang Tian
发明人： Fu-Ying Huang , Jifang Tian
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C2370/12
摘要： 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.
摘要翻译：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。

9. 发明授权

US07848058B2 Voice coil damper 有权
标题翻译：音圈阻尼器
公开(公告)号：US07848058B2
公开(公告)日：2010-12-07
申请号：US11897699
申请日：2007-08-30
申请人： Fu-Ying Huang , Jifang Tian
发明人： Fu-Ying Huang , Jifang Tian
IPC分类号： G11B21/02
CPC分类号： G11B5/5569
摘要： 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.
摘要翻译：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。

10. 发明申请

US20100067357A1 MAGNETIC RECORDING DISK DRIVE WITH ROTATIONAL VIBRATION COMPENSATION HAVING ADAPTIVE OPTIMIZATION OF VIBRATION SENSOR GAINS 有权
标题翻译：具有旋转振动补偿的磁记录盘驱动，具有振动传感器增益的自适应优化
公开(公告)号：US20100067357A1
公开(公告)日：2010-03-18
申请号：US12211569
申请日：2008-09-16
申请人： Fu-Ying Huang , Tetsuo Semba , Xiaotian Sun
发明人： Fu-Ying Huang , Tetsuo Semba , Xiaotian Sun
IPC分类号： G11B17/00
CPC分类号： G11B5/5582 , G11B5/59627
摘要： 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.
摘要翻译：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。

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