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1. 发明授权

US5905608A Dynamically tuned outer arms for improved rotary actuator performance 失效
标题翻译：动态调整外臂，提高旋转执行器性能
公开(公告)号：US5905608A
公开(公告)日：1999-05-18
申请号：US933697
申请日：1997-09-19
申请人： Gregory Michael Frees , Fu-Ying Huang , Hatem Radwan Radwan
发明人： Gregory Michael Frees , Fu-Ying Huang , Hatem Radwan Radwan
IPC分类号： G11B21/02 , G11B21/21
CPC分类号： G11B5/5521 , G11B5/4813 , G11B5/5582
摘要： An actuator assembly for a magnetic storage system wherein the end arms are dynamically tuned to reduce the modes of vibration on the actuator to improve the performance and stability of the actuator assembly in the magnetic storage system. In one embodiment, the upper and lower outer arms of the actuator assembly are thinned in the same or similar locations. In another embodiment, the upper and lower outer arms of the actuator assembly are notched at high strain energy points to reduce the stiffness of the outer arms. In still another embodiment, the upper and lower outer arms of the actuator assembly are both notched and thinned at the same or similar locations.
摘要翻译：一种用于磁存储系统的致动器组件，其中端臂被动态调节以减少致动器上的振动模式，以改善致动器组件在磁存储系统中的性能和稳定性。在一个实施例中，致动器组件的上外臂和下外臂在相同或相似的位置变薄。在另一个实施例中，致动器组件的上外臂和下外臂在高应变能点处被切口以减小外臂的刚度。在另一个实施例中，致动器组件的上外臂和下外臂在相同或相似的位置处被切口和变薄。

2. 发明授权

US06577463B1 Tangential misalignment precompensation in a direct access storage device 失效
标题翻译：直接访问存储设备中的切向未对准预补偿
公开(公告)号：US06577463B1
公开(公告)日：2003-06-10
申请号：US09561253
申请日：2000-04-27
申请人： Gregory Michael Frees , Kirk Barrows Price , Louis Joseph Serrano , Mantle Man-Hon Yu
发明人： Gregory Michael Frees , Kirk Barrows Price , Louis Joseph Serrano , Mantle Man-Hon Yu
IPC分类号： G11B509
CPC分类号： G11B5/59655
摘要： A system and method for precompensating for tangential misalignment in a direct access storage device adjusts a SID timing window individually for every track or surface of the direct access storage device. The system and method generate a calculation of the tangential misalignment and adjust, in accordance with the calculation of tangential misalignment, a timing window during which the transducer head reads the information located on the storage surface. The calculation of tangential misalignment may be the result of a direct measurement of the tangential misalignment, or may be converted from radial misalignment data. The adjustment of the timing window may comprise opening the timing window an amount depending upon the degree of misalignment of each track, and may comprise shifting the window in time either forward or backward depending upon the nature of the calculated misalignment.
摘要翻译：在直接存取存储设备中用于预补偿切向不对准的系统和方法针对直接存取存储设备的每个轨迹或表面单独地调整SID定时窗口。该系统和方法产生切向未对准的计算，并且根据切线未对准的计算调整换能器头读取位于存储表面上的信息的定时窗口。切向不对准的计算可能是直接测量切线未对准的结果，或者可以从径向未对准数据转换。定时窗口的调节可以包括根据每个轨道的未对准程度来打开定时窗口，并且可以包括根据所计算的未对准的性质向前或向后移动窗口。

3. 发明授权

US07133235B2 System and method for correcting for head tilt in HDD 失效
公开(公告)号：US07133235B2
公开(公告)日：2006-11-07
申请号：US10786692
申请日：2004-02-25
申请人： Daniel Jonathan Auerbach , Jeffrey Joesph Dobbek , Gregory Michael Frees , David Robison Hall
发明人： Daniel Jonathan Auerbach , Jeffrey Joesph Dobbek , Gregory Michael Frees , David Robison Hall
IPC分类号： G11B15/18
CPC分类号： G11B5/5547
摘要： Tilt between a head stack and its associated disk stack in a hard disk drive (HDD) is measured by determining the deviation of a target head from its expected position (based on the position of the current head) each time electrical contact is switched from the current head to a target head. A running average tilt value is stored and used to modify the logical seek distance used in a Rotational Position Optimization (RPO) algorithm to better order I/O requests in a queue. Also, the running average tilt value can be used by the servo to pre-position the target head before electrical contact is made with the target head, to improve speed of operation.

4. 发明授权

US07411760B2 System and method for correcting for head tilt in HDD 失效
标题翻译：用于校正HDD中头倾的系统和方法
公开(公告)号：US07411760B2
公开(公告)日：2008-08-12
申请号：US11592949
申请日：2006-11-02
申请人： Daniel Jonathan Auerbach , Jeffrey Joesph Dobbek , Gregory Michael Frees , David Robison Hall
发明人： Daniel Jonathan Auerbach , Jeffrey Joesph Dobbek , Gregory Michael Frees , David Robison Hall
IPC分类号： G11B21/02
CPC分类号： G11B5/5547
摘要： Tilt between a head stack and its associated disk stack in a hard disk drive (HDD) is measured by determining the deviation of a target head from its expected position (based on the position of the current head) each time electrical contact is switched from the current head to a target head. A running average tilt value is stored and used to modify the logical seek distance used in a Rotational Position Optimization (RPO) algorithm to better order I/O requests in a queue. Also, the running average tilt value can be used by the servo to pre-position the target head before electrical contact is made with the target head, to improve speed of operation.
摘要翻译：在硬盘驱动器（HDD）中的磁头堆栈及其相关联的磁盘堆栈之间的倾斜通过每次电触点从电源触点切换到目标磁头的预期位置（基于当前磁头的位置）的偏差来测量目前头目标头。运行平均倾斜值被存储并用于修改在旋转位置优化（RPO）算法中使用的逻辑寻找距离，以更好地排序队列中的I / O请求。此外，伺服器可以使用行驶平均倾斜值来在与目标头进行电接触之前预定位目标头，以提高操作速度。

5. 发明授权

US07251100B1 Mounting interface for a spindle motor 有权
标题翻译：主轴电机的安装接口
公开(公告)号：US07251100B1
公开(公告)日：2007-07-31
申请号：US09191577
申请日：1998-11-13
申请人： Gregory Michael Frees , Andrew Keith Hanlon , Daniel Robert Stacer
发明人： Gregory Michael Frees , Andrew Keith Hanlon , Daniel Robert Stacer
IPC分类号： G11B17/02
CPC分类号： G11B33/121 , G11B19/20 , G11B25/043 , G11B33/08 , H02K5/24
摘要： A mounting interface for a spindle motor allows the optimization of the spindle dynamics. The mounting interface provides a steadfast relationship between a motor and a baseplate, wherein the mounting interface includes at least three surface points forming a single plane acting as a common boundary between the motor and the baseplate. The three surface points may be pads, and the pads may be coupled to the baseplate or to the mount flange. The three surface points provide reduced contact area between the mount flange and the baseplate, and the reduced contact area lowers the rigidity of the mount flange and the resonant frequencies. The surface area of the pads and the material of the pads is chosen to reduce acoustical noise. In addition, a damping ring may be provided for dissipating distortion energy between the motor, baseplate and/or mount flange.
摘要翻译：主轴电机的安装界面允许优化主轴动态。安装界面提供了电动机和基板之间的稳定关系，其中安装界面包括形成用作电动机和基板之间的公共边界的单个平面的至少三个表面点。三个表面点可以是垫，并且垫可以联接到基板或安装凸缘。三个表面点提供了安装凸缘和基板之间的减小的接触面积，并且减小的接触面积降低了安装凸缘的刚度和谐振频率。选择垫的表面积和垫的材料以降低声学噪声。此外，可以提供阻尼环来消除电动机，基板和/或安装凸缘之间的变形能量。

6. 发明授权

US06188191B1 Servo system responsive to temperature changes 失效
标题翻译：伺服系统响应温度变化
公开(公告)号：US06188191B1
公开(公告)日：2001-02-13
申请号：US09303912
申请日：1999-05-03
申请人： Gregory Michael Frees , Louis Joseph Serrano
发明人： Gregory Michael Frees , Louis Joseph Serrano
IPC分类号： G05B501
CPC分类号： G11B5/59644 , G11B5/5547
摘要： A disk drive system includes a servo system for driving mechanical parts, including a read/write head, to a desired track on a disk. The mechanical parts undesirably resonate at a frequency f, where f is a function of a temperature t of those mechanical parts. The servo system includes a notch filter responsive to an indication of temperature t, to attenuate the amplitude of frequency f in a broadband control signal that is applied to move the mechanical parts.
摘要翻译：磁盘驱动器系统包括用于将包括读/写头的机械部件驱动到盘上期望的轨道的伺服系统。机械部件以频率f不期望地共振，其中f是这些机械部件的温度t的函数。伺服系统包括响应于温度t的指示的陷波滤波器，以衰减用于移动机械部件的宽带控制信号中的频率f的振幅。

7. 发明授权

US07009795B2 System and method for correcting for head tilt in HDD 失效
标题翻译：用于校正HDD中头倾的系统和方法
公开(公告)号：US07009795B2
公开(公告)日：2006-03-07
申请号：US10787668
申请日：2004-02-26
申请人： Daniel Jonathan Auerbach , Jeffrey Joesph Dobbek , Gregory Michael Frees , David Robison Hall
发明人： Daniel Jonathan Auerbach , Jeffrey Joesph Dobbek , Gregory Michael Frees , David Robison Hall
IPC分类号： G11B15/18
CPC分类号： G11B5/556 , G11B5/4976 , G11B5/5521
摘要： Tilt between a head stack and its associated disk stack in a hard disk drive (HDD) is measured by determining the deviation of a target head from its expected position (based on the position of the current head) each time electrical contact is switched from the current head to a target head. A running average tilt value is stored and used to modify the logical seek distance used in a Rotational Position Optimization (RPO) algorithm to better order I/O requests in a queue. Also, the running average tilt value can be used by the servo to pre-position the target head before electrical contact is made with the target head, to improve speed of operation.
摘要翻译：在硬盘驱动器（HDD）中的磁头堆栈及其相关联的磁盘堆栈之间的倾斜通过每次电触点从电源触点切换到目标磁头的预期位置（基于当前磁头的位置）的偏差来测量目前头目标头。运行平均倾斜值被存储并用于修改在旋转位置优化（RPO）算法中使用的逻辑寻找距离，以更好地排序队列中的I / O请求。此外，伺服器可以使用行驶平均倾斜值来在与目标头进行电接触之前预定位目标头，以提高操作速度。

8. 发明授权

US06522493B1 Position error signal linearization using an auxiliary discontinuity removal routine 失效
标题翻译：使用辅助不连续删除程序的位置误差信号线性化
公开(公告)号：US06522493B1
公开(公告)日：2003-02-18
申请号：US09300071
申请日：1999-04-27
申请人： Jeff J. Dobbek , Gregory Michael Frees , Craig N. Fukushima , Louis Joseph Serrano , Markus Staudenmann
发明人： Jeff J. Dobbek , Gregory Michael Frees , Craig N. Fukushima , Louis Joseph Serrano , Markus Staudenmann
IPC分类号： G11B2102
CPC分类号： G11B5/59627
摘要： A method, apparatus, and article of manufacture for determining a transducer position in relation to a media surface is described. The method comprises sensing positioning information on the media, measuring a position error signal from the sensed positioning information wherein the position error signal includes first and second position signal components, accessing stored information describing a non-linear relationship between the measured position error signal and the transducer position, and applying the stored relationship to the measured position error signal to produce a corrected position error signal, and determining the transducer position from the corrected position error signal.
摘要翻译：描述了一种用于确定相对于介质表面的换能器位置的方法，装置和制品。该方法包括：感测媒体上的定位信息，根据感测到的定位信息测量位置误差信号，其中位置误差信号包括第一和第二位置信号分量，访问存储的信息，描述所测量的位置误差信号与换能器位置，并且将所存储的关系应用于所测量的位置误差信号以产生校正的位置误差信号，以及根据校正的位置误差信号确定换能器位置。

9. 发明授权

US06567231B1 Vibration mode compensation for disk drive 失效
标题翻译：磁盘驱动器的振动模式补偿
公开(公告)号：US06567231B1
公开(公告)日：2003-05-20
申请号：US09429864
申请日：1999-10-29
申请人： Gregory Michael Frees
发明人： Gregory Michael Frees
IPC分类号： G11B2102
CPC分类号： G11B5/5521 , G11B33/14
摘要： The fundamental vibration or butterfly mode sensitivity of a hard disk drive,is significantly dependent on the operating temperature of the drive. The temperature of the drive is readily determined via measurement with a thermal or coil resistance sensor. The sensor provides the drive's servo controller with the drive temperature. The current operating temperature of the disk drive, in combination with its modal sensitivity to thermal changes, are used to regularly update the servo controller. With this information, the servo controller calculates new butterfly mode characteristics as the operating temperature changes in order to actively compensate for the mode, and thus increase the performance of the disk drive.
摘要翻译：硬盘驱动器的基本振动或蝴蝶模式灵敏度显着取决于驱动器的工作温度。通过使用热或线圈电阻传感器进行测量，可以很容易地确定驱动器的温度。传感器为驱动器的伺服控制器提供驱动器温度。磁盘驱动器的当前工作温度与其对热变化的模态灵敏度结合使用来定期更新伺服控制器。利用该信息，伺服控制器在运行温度变化时计算新的蝶型特性，以便主动补偿该模式，从而提高磁盘驱动器的性能。

10. 发明授权

US06429995B1 Position error signal calibration using measured bursts 失效
标题翻译：使用测量脉冲串进行位置误差信号校准
公开(公告)号：US06429995B1
公开(公告)日：2002-08-06
申请号：US09299893
申请日：1999-04-27
申请人： Jeff J. Dobbek , Gregory Michael Frees , Craig N. Fukushima , Louis Joseph Serrano , Blake Finstad
发明人： Jeff J. Dobbek , Gregory Michael Frees , Craig N. Fukushima , Louis Joseph Serrano , Blake Finstad
IPC分类号： G11B5596
CPC分类号： G11B5/59655
摘要： A method, apparatus, and an article of manufacture for calibrating a position error signal for controlling the position of a read transducer with respect to a storage media having positioning information written at a location thereon. In one embodiment, the invention is embodied in a method comprising determining a relationship between a read transducer position and the positioning information by measuring the positioning information while passing the read transducer across the location, determining a measured position error signal from the measured positioning information, and computing a relationship between the measured position error signal and the read transducer position.
摘要翻译：一种用于校准位置误差信号的方法，装置和制品，用于控制读取换能器相对于具有写入其上的位置的定位信息的存储介质的位置。在一个实施例中，本发明体现在一种方法中，包括通过在将读取的换能器穿过位置通过测量定位信息来确定读取换能器位置与定位信息之间的关系，从测量的定位信息确定测量的位置误差信号，并计算所测量的位置误差信号和读取换能器位置之间的关系。

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