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1. 发明授权

US06549349B2 Adaptive vibration control for servo systems in data storage devices 失效
标题翻译：数据存储设备伺服系统的自适应振动控制
公开(公告)号：US06549349B2
公开(公告)日：2003-04-15
申请号：US09955391
申请日：2001-09-18
申请人： Sri Muthuthamby Sri-Jayantha , Arun Sharma , Hien Phu Dang , Naoyuki Kagami , Yuzo Nakagawa , Akira Tokizono , Isao Yoneda
发明人： Sri Muthuthamby Sri-Jayantha , Arun Sharma , Hien Phu Dang , Naoyuki Kagami , Yuzo Nakagawa , Akira Tokizono , Isao Yoneda
IPC分类号： G11B2736
CPC分类号： G11B21/106 , G11B5/59611
摘要： Methods and systems for detecting and correcting for undesirable vibrations impacting the servo systems in data storage devices. A detection technique is provided wherein a detection filter is configured to scan a position signal of the servo system across a range of frequencies, and, at each respective scanned frequency, record an amplitude associated therewith. The recorded amplitudes are examined to determine whether any exceed a threshold, thereby locating a peak frequency of the vibration. Using the detected peak frequency of the vibration, a corrective filter is configured to operate about the peak frequency of vibration, thereby reducing its impact on the position signal in the servo system. Optimum detection and correction filter structures are disclosed, as are techniques for addressing filter state vectors as initial conditions as the corrective filters are repeatedly engaged during successive settle-out and track follow cycles (between seeks), as are continuous adaptation techniques for changing vibration environments.
摘要翻译：用于检测和校正影响数据存储设备中的伺服系统的不期望的振动的方法和系统。提供了一种检测技术，其中检测滤波器被配置为扫描频率范围内的伺服系统的位置信号，并且在每个相应的扫描频率处记录与之相关联的振幅。检查记录的振幅以确定是否有超过阈值，从而定位振动的峰值频率。使用检测到的振动峰值频率，校正滤波器被配置为围绕振动的峰值频率运行，从而减小其对伺服系统中位置信号的影响。公开了最佳检测和校正滤波器结构，作为用于将滤波器状态向量寻址作为初始条件的技术，校正滤波器在连续的稳定和跟踪周期（寻找之间）期间重复接合），以及用于改变振动环境的连续自适应技术。

2. 发明授权

US6122139A Disk drive rotary actuator system including synchronous counter torque generator 失效
标题翻译：磁盘驱动旋转执行器系统包括同步反转矩发生器
公开(公告)号：US6122139A
公开(公告)日：2000-09-19
申请号：US119184
申请日：1998-07-20
申请人： Sri Muthuthamby Sri-Jayantha , Arun Sharma , Hien Phu Dang , Vijayeshwar Khanna , Gerard McVicker , Kiyoshi Satoh , Yuzo Nakagawa , Naoyuki Kagami
发明人： Sri Muthuthamby Sri-Jayantha , Arun Sharma , Hien Phu Dang , Vijayeshwar Khanna , Gerard McVicker , Kiyoshi Satoh , Yuzo Nakagawa , Naoyuki Kagami
IPC分类号： G11B25/04 , G11B33/08 , G11B33/12 , G11B33/14
CPC分类号： G11B25/043 , G11B33/08 , G11B33/121
摘要： A disk drive system, includes an arm for mounting a head, and at least one component, coupled to the arm, for being synchronized to maintain a zero net angular momentum of the arm and the at least one component. Another disk drive system including a read/write head, includes a torque counter-generating member for being synchronized to maintain a zero net angular momentum of the head.
摘要翻译：磁盘驱动系统包括用于安装头部的臂和耦合到臂的至少一个部件，用于同步以保持臂和至少一个部件的零净角动量。包括读/写头的另一个磁盘驱动器系统包括用于同步以保持磁头的零净角度动量的扭矩计数器生成构件。

3. 发明授权

US06567230B1 Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter 失效
标题翻译：用于利用数字滤波器执行磁盘装置中的磁头致动器的定位控制的方法和系统
公开(公告)号：US06567230B1
公开(公告)日：2003-05-20
申请号：US09429696
申请日：1999-10-28
申请人： Naoyuki Kagami , Akira Tokizono , Sri M. Sri-Jayantha , Tatsuya Sakai , Isao Yoneda , Hien Phu Dang , Arun Sharma
发明人： Naoyuki Kagami , Akira Tokizono , Sri M. Sri-Jayantha , Tatsuya Sakai , Isao Yoneda , Hien Phu Dang , Arun Sharma
IPC分类号： G11B2102
CPC分类号： H03H17/0294 , G11B5/5521 , G11B5/56
摘要： A method and system for utilizing a digital filter for actuator positioning control in a disk device. In accordance with the method and system of the present invention multiple selectable filter modules are provided. Each of the multiple selectable filter modules functions in a serial or parallel filtering mode when selected. Multiple configurable registers are also provided wherein the configuration of each of the multiple configurable registers determines a selection of at least one of the multiple selectable filter modules. Particular ones of the multiple configurable registers are selected, such that a configuration of the digital filter is dynamically selectable in order to achieve a predetermined filter output.
摘要翻译：一种利用数字滤波器在盘装置中执行器定位控制的方法和系统。根据本发明的方法和系统，提供了多个可选择的过滤器模块。多个可选滤波器模块中的每一个在选择时以串行或并行滤波模式运行。还提供了多个可配置寄存器，其中多个可配置寄存器中的每一个的配置确定多个可选择滤波器模块中的至少一个的选择。选择多个可配置寄存器中的特定的寄存器，使得可以动态地选择数字滤波器的配置以便实现预定的滤波器输出。

4. 发明授权

US5963392A Method and apparatus for disk shock protection 失效
标题翻译：盘式防震方法及装置
公开(公告)号：US5963392A
公开(公告)日：1999-10-05
申请号：US869562
申请日：1997-06-05
申请人： Sri Muthuthamby Sri-Jayantha , Vijayeshwar Das Khanna , Suresh Kumar , Hien Phu Dang
发明人： Sri Muthuthamby Sri-Jayantha , Vijayeshwar Das Khanna , Suresh Kumar , Hien Phu Dang
IPC分类号： G11B5/54 , G11B5/55 , G11B5/82 , G11B19/04
CPC分类号： G11B19/04 , G11B5/54 , G11B5/82 , G11B5/5582
摘要： A data storage device 12 includes a disk 14 having a surface zone 14a for storing data, and an access head 18 mounted on a slider 20 for writing data to and reading data from the data zone. The head 18 flies across the data zone 14a to access selected data tracks during spinning of the disk. And, the slider 20 seeks a predetermined shock buffer zone 30 atop the spinning disk, where critical data is not stored, during an idle mode for confining thereto any shock induced contact between the slider and disk surface.
摘要翻译：数据存储装置12包括具有用于存储数据的表面区域14a的盘14和安装在滑块20上用于将数据写入数据区并从数据区读取数据的存取头18。头部18飞过数据区域14a，以便在旋转盘片期间访问所选数据轨道。并且，在空闲模式期间，滑块20寻找在旋转盘上的临时数据未被存储的预定冲击缓冲区30，以限制滑块和盘表面之间的任何冲击感应接触。

5. 发明授权

US06937422B2 Self-monitoring and self-healing of frequency specific position errors in a data storage device 失效
标题翻译：数据存储设备中频率特定位置误差的自我监测和自我修复
公开(公告)号：US06937422B2
公开(公告)日：2005-08-30
申请号：US10289603
申请日：2002-11-07
申请人： Hien Phu Dang , Mirei Hosono , Naoyuki Kagami , Kenji Okada , Arun Sharma , Gordon James Smith , Sri M. Sri-Jayantha
发明人： Hien Phu Dang , Mirei Hosono , Naoyuki Kagami , Kenji Okada , Arun Sharma , Gordon James Smith , Sri M. Sri-Jayantha
IPC分类号： G11B21/10 , G06F11/07 , G11B5/596 , G11B19/04 , G11B19/28
CPC分类号： G11B5/596 , G11B19/04
摘要： An apparatus and method of controlling an actuator of a data storage device detect and/or correct narrowband mechanical excitations such as due to spindle bearing defects through sensing and/or rejecting disturbance frequencies associated with such narrowband mechanical excitations in an actuator control signal generated by a data storage device controller. A narrowband filter may be used to reject, from an actuator control signal generated by a data storage device controller, a disturbance frequency associated with a spindle bearing defect in a data storage device, and disposed in proximity to a zero crossover frequency associated with the data storage device controller. In addition, a peak filter disposed in a control loop of a data storage device controller may be configured to detect a spindle bearing defect in a data storage device by detecting an amplitude of a control signal in the control loop in proximity to a disturbance frequency associated with the spindle bearing defect.
摘要翻译：控制数据存储设备的致动器的装置和方法通过检测和/或排除与由这样的窄带机械激励相关联的干扰频率来检测和/或校正窄带机械激励，例如由于主轴承载缺陷而导致的致动器控制信号产生的干扰频率数据存储设备控制器。窄带滤波器可以用于从数据存储设备控制器产生的致动器控制信号中拒绝与数据存储设备中的主轴承载缺陷相关联的干扰频率，并且设置在与数据相关联的零交叉频率附近存储设备控制器此外，布置在数据存储装置控制器的控制环路中的峰值滤波器可以被配置为通过检测控制回路中与干扰频率相关联的控制信号的幅度来检测数据存储装置中的主轴承载缺陷主轴轴承缺陷。

6. 发明申请

US20090313588A1 Method to Extract and Apply Circuit Features in Organic Substrate for Automation of Warp Modeling 失效
标题翻译：在有机基板中提取和应用电路特征的方法，用于自动化变形建模
公开(公告)号：US20090313588A1
公开(公告)日：2009-12-17
申请号：US12260957
申请日：2008-10-29
申请人： Hien Phu Dang , Vijayeshwar Das Khanna , Arun Sharma , Sri M. Sri-Jayantha
发明人： Hien Phu Dang , Vijayeshwar Das Khanna , Arun Sharma , Sri M. Sri-Jayantha
IPC分类号： G06F17/50
CPC分类号： H05K3/0005 , H05K1/0271 , H05K2201/09136
摘要： A method of characterizing an organic substrate including a plurality of circuit layers is provided includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the circuit layers of the substrate; segmenting the substrate into multiple processing regions based, at least in part, on geometric coordinates of circuit structures defined in the image of the substrate; generating a circuit layer image corresponding to a selected one of the processing regions of the substrate; identifying one or more geometric features in the circuit layer image; estimating at least one thermomechanical property of the circuit layer image as a function of the identified geometric features; repeating the steps of receiving an image, generating a circuit layer image, identifying one or more geometric features in the circuit layer image, and estimating at least one thermomechanical property of the circuit layer image until all circuit layers in the substrate have been processed; and generating a 3-D representation of the selected one of the processing regions of the substrate including the plurality of circuit layer images as a function of the at least one thermomechanical property of each of the plurality of circuit layer images.
摘要翻译：提供了表征包括多个电路层的有机衬底的方法包括以下步骤：接收有机衬底的图像，该图像包括衬底的电路层的几何描述; 至少部分地基于在衬底的图像中限定的电路结构的几何坐标将衬底分割成多个处理区域; 生成与所述基板的所述选择的一个所述处理区域对应的电路层图像; 识别电路层图像中的一个或多个几何特征; 估计电路层图像的至少一个热机械性质作为所识别的几何特征的函数; 重复接收图像的步骤，生成电路层图像，识别电路层图像中的一个或多个几何特征，以及估计电路层图像的至少一个热机械特性，直到已经处理了基板中的所有电路层; 以及根据所述多个电路层图像中的每一个的所述至少一个热机械特性，生成包括所述多个电路层图像的所述基板的所选择的一个处理区域的3-D表示。

7. 发明申请

US20090312960A1 Characterizing Thermomechanical Properties of an Organic Substrate Using Three-Dimensional Finite Element Analysis 有权
标题翻译：使用三维有限元分析表征有机基板的热机械性能
公开(公告)号：US20090312960A1
公开(公告)日：2009-12-17
申请号：US12260718
申请日：2008-10-29
申请人： Hien Phu Dang , Vijaveshwar Das Khanna , Arun Sharma , Sri M. Sri-Jayantha
发明人： Hien Phu Dang , Vijaveshwar Das Khanna , Arun Sharma , Sri M. Sri-Jayantha
IPC分类号： G01N25/16 , G06F19/00 , G01L1/00
CPC分类号： G06F17/5018 , G06F2217/80
摘要： A method for characterizing thermomechanical properties of an organic substrate includes the steps of: receiving an image of the substrate, the image including a geometric description of the circuit layers of the substrate; selecting a given one of the circuit layers for processing; converting the image to a 2-D FEM image of the given circuit layer; repeating the steps of selecting a given one of the circuit layers and converting the image to a 2-D FEM image of the selected layer until all of the layers have been processed; combining all of the 2-D FEM images corresponding to the layers to form a 3-D FEM image representing at least a portion of the substrate; determining a coefficient of thermal expansion (CTE), modulus and/or Poisson's ratio of the 3-D FEM image; and constructing a 3-D representation of the substrate as a function of the CTE, modulus and/or Poisson's ratio of the 3-D FEM image.
摘要翻译：用于表征有机衬底的热机械性质的方法包括以下步骤：接收衬底的图像，该图像包括衬底的电路层的几何描述; 选择给定的一个电路层进行处理; 将图像转换成给定电路层的2-D FEM图像; 重复选择给定的一个电路层并将该图像转换成所选层的2-D FEM图像，直到所有层已经被处理的步骤; 组合对应于层的所有2-D FEM图像以形成表示基板的至少一部分的3-D FEM图像; 确定3-D FEM图像的热膨胀系数（CTE），模量和/或泊松比; 以及根据3-D FEM图像的CTE，模数和/或泊松比来构造衬底的3-D表示。

8. 发明授权

US08127255B2 Method to extract and apply circuit features in organic substrate for automation of warp modeling 失效
标题翻译：提取和应用电路特征的方法，用于有机衬底自动化的翘曲建模
公开(公告)号：US08127255B2
公开(公告)日：2012-02-28
申请号：US12260957
申请日：2008-10-29
申请人： Hien Phu Dang , Vijayeshwar Das Khanna , Arun Sharma , Sri M. Sri-Jayantha
发明人： Hien Phu Dang , Vijayeshwar Das Khanna , Arun Sharma , Sri M. Sri-Jayantha
IPC分类号： G06F17/50
CPC分类号： H05K3/0005 , H05K1/0271 , H05K2201/09136
摘要： A method of characterizing an organic substrate including a plurality of circuit layers is provided includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the circuit layers of the substrate; segmenting the substrate into multiple processing regions based, at least in part, on geometric coordinates of circuit structures defined in the image of the substrate; generating a circuit layer image corresponding to a selected one of the processing regions of the substrate; identifying one or more geometric features in the circuit layer image; estimating at least one thermomechanical property of the circuit layer image as a function of the identified geometric features; repeating the steps of receiving an image, generating a circuit layer image, identifying one or more geometric features in the circuit layer image, and estimating at least one thermomechanical property of the circuit layer image until all circuit layers in the substrate have been processed; and generating a 3-D representation of the selected one of the processing regions of the substrate including the plurality of circuit layer images as a function of the at least one thermomechanical property of each of the plurality of circuit layer images.
摘要翻译：提供了表征包括多个电路层的有机衬底的方法包括以下步骤：接收有机衬底的图像，该图像包括衬底的电路层的几何描述; 至少部分地基于在衬底的图像中限定的电路结构的几何坐标将衬底分割成多个处理区域; 生成与所述基板的所述选择的一个所述处理区域对应的电路层图像; 识别电路层图像中的一个或多个几何特征; 估计电路层图像的至少一个热机械性质作为所识别的几何特征的函数; 重复接收图像的步骤，生成电路层图像，识别电路层图像中的一个或多个几何特征，以及估计电路层图像的至少一个热机械特性，直到已经处理了基板中的所有电路层; 以及根据所述多个电路层图像中的每一个的所述至少一个热机械特性，生成包括所述多个电路层图像的所述基板的所选择的一个处理区域的3-D表示。

9. 发明申请

US20090310848A1 Characterizing Thermomechanical Properties of an Organic Substrate Using Finite Element Analysis 有权
标题翻译：使用有限元分析表征有机基板的热机械性能
公开(公告)号：US20090310848A1
公开(公告)日：2009-12-17
申请号：US12260693
申请日：2008-10-29
申请人： Hien Phu Dang , Arun Sharma , Sri M. Sri-Jayantha
发明人： Hien Phu Dang , Arun Sharma , Sri M. Sri-Jayantha
IPC分类号： G06K9/00
CPC分类号： G06F17/5018 , G06F2217/80
摘要： A method for characterizing thermomechanical properties of an organic substrate is provided. The method includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the plurality of circuit layers of the substrate; selecting a given one of the plurality of circuit layers for processing; converting the image to a two-dimensional finite element model (FEM) image of the given one of the circuit layers; determining at least one of a coefficient of thermal expansion (CTE), modulus and Poisson's ratio of the FEM image of the given one of the circuit layers; repeating the steps of selecting a given one of the plurality of circuit layers, converting the image to a two-dimensional FEM image, and determining at least one of a CTE, modulus and Poisson's ratio of the FEM image for all of the plurality of circuit layers corresponding to at least a portion of the organic substrate; and constructing a three-dimensional representation of at least a portion of the organic substrate including the plurality of circuit layers as a function of at least one of the CTE, modulus and Poisson's ratio of each of the plurality of circuit layers.
摘要翻译：提供了表征有机基板的热机械性能的方法。该方法包括以下步骤：接收有机衬底的图像，该图像包括衬底的多个电路层的几何描述; 选择所述多个电路层中的给定一个以进行处理; 将图像转换成给定的一个电路层的二维有限元模型（FEM）图像; 确定给定一个电路层的FEM图像的热膨胀系数（CTE），模数和泊松比中的至少一个; 重复选择多个电路层中的给定的一个电路层的步骤，将图像转换为二维有机图像，以及确定所有多个电路中的有限元图像的CTE，模数和泊松比中的至少一个对应于有机基材的至少一部分的层; 以及构成包括所述多个电路层的所述有机衬底的至少一部分的三维表示作为所述多个电路层中的每一个的CTE，模数和泊松比中的至少一个的函数。

10. 发明授权

US08345955B2 Characterizing thermomechanical properties of an organic substrate using finite element analysis 有权
标题翻译：使用有限元分析表征有机基质的热机械性能
公开(公告)号：US08345955B2
公开(公告)日：2013-01-01
申请号：US12260693
申请日：2008-10-29
申请人： Hien Phu Dang , Arun Sharma , Sri M. Sri-Jayantha
发明人： Hien Phu Dang , Arun Sharma , Sri M. Sri-Jayantha
IPC分类号： G06K9/00
CPC分类号： G06F17/5018 , G06F2217/80
摘要： A method for characterizing thermomechanical properties of an organic substrate is provided. The method includes the steps of: receiving an image of the organic substrate, the image including a geometric description of the plurality of circuit layers of the substrate; selecting a given one of the plurality of circuit layers for processing; converting the image to a two-dimensional finite element model (FEM) image of the given one of the circuit layers; determining at least one of a coefficient of thermal expansion (CTE), modulus and Poisson's ratio of the FEM image of the given one of the circuit layers; repeating the steps of selecting a given one of the plurality of circuit layers, converting the image to a two-dimensional FEM image, and determining at least one of a CTE, modulus and Poisson's ratio of the FEM image for all of the plurality of circuit layers corresponding to at least a portion of the organic substrate; and constructing a three-dimensional representation of at least a portion of the organic substrate including the plurality of circuit layers as a function of at least one of the CTE, modulus and Poisson's ratio of each of the plurality of circuit layers.
摘要翻译：提供了表征有机基板的热机械性能的方法。该方法包括以下步骤：接收有机衬底的图像，该图像包括衬底的多个电路层的几何描述; 选择所述多个电路层中的给定一个以进行处理; 将图像转换成给定的一个电路层的二维有限元模型（FEM）图像; 确定给定一个电路层的FEM图像的热膨胀系数（CTE），模数和泊松比中的至少一个; 重复选择多个电路层中的给定的一个电路层的步骤，将图像转换为二维有机图像，以及确定所有多个电路中的有限元图像的CTE，模数和泊松比中的至少一个对应于有机基材的至少一部分的层; 以及构成包括所述多个电路层的所述有机衬底的至少一部分的三维表示作为所述多个电路层中的每一个的CTE，模数和泊松比中的至少一个的函数。

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