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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

US06532129B1 Method and apparatus for sustaining feedback filter state having periodic output 失效
标题翻译：用于维持具有周期性输出的反馈滤波器状态的方法和装置
公开(公告)号：US06532129B1
公开(公告)日：2003-03-11
申请号：US09330180
申请日：1999-06-11
申请人： Sri Muthuthamby Sri-Jayantha , Hien P. Dang , Arun Sharma , Isao Yoneda , Nobuyuki Kitazaki
发明人： Sri Muthuthamby Sri-Jayantha , Hien P. Dang , Arun Sharma , Isao Yoneda , Nobuyuki Kitazaki
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： A disk drive system, includes a head, a controller for controlling an operation of the head, at least one feedback filter coupled in relation to the controller, and a mechanism for keeping a function of the at least one of the feedback filter active during any of an absence of a valid position error signal (PES) and a position error signal being unavailable due to a defect during an operation of the head.
摘要翻译：磁盘驱动器系统包括磁头，用于控制磁头的操作的控制器，相对于控制器耦合的至少一个反馈滤波器，以及用于保持反馈滤波器中的至少一个功能在任何没有有效位置误差信号（PES）和位置误差信号由于在头部的操作期间的缺陷而不可用。

4. 发明授权

US06181507B2 Increased and randomized output sampling to reduce positioning noise in a data storage system 失效
标题翻译：增加和随机输出采样，以减少数据存储系统中的定位噪声
公开(公告)号：US06181507B2
公开(公告)日：2001-01-30
申请号：US08692164
申请日：1996-08-05
申请人： Nobuyuki Kitazaki , Kiyoshi Satoh , Arun Sharma , Sri Muthuthamby Sri-Jayantha , Isao Yoneda
发明人： Nobuyuki Kitazaki , Kiyoshi Satoh , Arun Sharma , Sri Muthuthamby Sri-Jayantha , Isao Yoneda
IPC分类号： G11B5596
CPC分类号： G11B5/59605 , G11B5/59627 , G11B5/5965
摘要： A method and system for reducing positioning noise in a data storage system are provided. An access device is positioned over a data storage medium using a stream of bursts stored on the medium. The bursts are sensed at a frequency determined by the rate at which the medium is moved relative to a sensing device. Output positioning values are provided to position the access device at a frequency higher than the frequency at which the positioning bursts are sensed, and/or at random times. The random times may be calculated as random advances or delays from time points occurring at a fixed frequency.
摘要翻译：提供了一种用于降低数据存储系统中的定位噪声的方法和系统。访问设备使用存储在介质上的突发流来定位在数据存储介质上。以由介质相对于感测装置移动的速率确定的频率感测脉冲串。提供输出定位值以将访问设备定位在高于感测定位脉冲串的频率的频率处和/或随机时间。随机时间可以被计算为在固定频率发生的时间点的随机前进或延迟。

5. 发明授权

US06344943B1 Increased and randomized output sampling to reduce positioning noise in a data storage system 有权
标题翻译：增加和随机输出采样，以减少数据存储系统中的定位噪声
公开(公告)号：US06344943B1
公开(公告)日：2002-02-05
申请号：US09280384
申请日：1999-03-29
申请人： Nobuyuki Kitazaki , Kiyoshi Satoh , Arun Sharma , Sri Muthuthamby Sri-Jayantha , Isao Yoneda
发明人： Nobuyuki Kitazaki , Kiyoshi Satoh , Arun Sharma , Sri Muthuthamby Sri-Jayantha , Isao Yoneda
IPC分类号： G11B5596
CPC分类号： G11B5/59605 , G11B5/59627 , G11B5/5965
摘要： A method and system for reducing positioning noise in a data storage system are provided. An access device is positioned over a data storage medium using a stream of bursts stored on the medium. The bursts are sensed at a frequency determined by the rate at which the medium is moved relative to a sensing device. Output positioning values are provided to position the access device at a frequency higher than the frequency at which the positioning bursts are sensed, and/or at random times. The random times may be calculated as random advances or delays from time points occurring at a fixed frequency.
摘要翻译：提供了一种用于降低数据存储系统中定位噪声的方法和系统。访问设备使用存储在介质上的突发流来定位在数据存储介质上。以由介质相对于感测装置移动的速率确定的频率感测脉冲串。提供输出定位值以将访问设备定位在高于感测定位脉冲串的频率的频率处和/或随机时间。随机时间可以被计算为在固定频率发生的时间点的随机前进或延迟。

6. 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。

7. 发明授权

US6122138A Disk drive with vibration synchronizing rib 失效
标题翻译：带振动同步肋的磁盘驱动器
公开(公告)号：US6122138A
公开(公告)日：2000-09-19
申请号：US970739
申请日：1997-11-14
申请人： Vijayeshwar Das Khanna , Suresh Kumar , Sri Muthuthamby Sri-Jayantha
发明人： Vijayeshwar Das Khanna , Suresh Kumar , Sri Muthuthamby Sri-Jayantha
IPC分类号： G11B17/038 , G11B25/04 , G11B33/08
CPC分类号： G11B33/08 , G11B17/038 , G11B25/043
摘要： A disk drive includes a data storage disk attached to a spindle which is rotatably mounted to a housing. A support shaft is also mounted to the housing parallel to the spindle, and includes an arm supported thereon parallel to the disk. A rib extends along the housing between the spindle and the support shaft for synchronizing fundamental resonant vibration thereof due to a shock load to couple in phase vibratory motion thereof. The support shaft may pivot and carry a suspension arm and data access head, or the shaft may be stationary and carry a load-unload ramp for parking the suspension arm, or both types of shafts may be used in the housing with corresponding ribs extending to the common spindle.
摘要翻译：磁盘驱动器包括附接到主轴的数据存储盘，该主轴可旋转地安装到壳体。支撑轴也平行于心轴安装到壳体，并且包括平行于盘支撑的臂。肋条沿着壳体在主轴和支撑轴之间延伸，以便由于冲击载荷使其基本共振振动同步以使其相位振动。支撑轴可以枢转并携带悬架臂和数据存取头，或者轴可以是静止的，并且携带用于停放悬架臂的负载卸载斜面，或者可以在壳体中使用两种类型的轴，其中相应的肋延伸到共轴。

8. 发明授权

US5818657A Disk drive with impulse torque generating element 失效
标题翻译：具有脉冲扭矩产生元件的磁盘驱动器
公开(公告)号：US5818657A
公开(公告)日：1998-10-06
申请号：US690698
申请日：1996-07-31
申请人： Sri Muthuthamby Sri-Jayantha , Vijayeshwar Das Khanna , Suresh Kumar , Mutsuro Ohta , Kohji Serizawa
发明人： Sri Muthuthamby Sri-Jayantha , Vijayeshwar Das Khanna , Suresh Kumar , Mutsuro Ohta , Kohji Serizawa
IPC分类号： G11B17/028 , G11B15/46
CPC分类号： G11B17/028
摘要： A method and system for overcoming force which inhibits movement of a data storage device are provided. The invention includes generating momentum in a moveable member and then utilizing the momentum of the moveable member to generate a large impulse force on a stationary body (e.g., the data storage device) to overcome the movement-inhibiting force thereon. This is accomplished by allowing the moveable member to move along a trajectory independently of the stationary body, thereby building momentum in the moveable member. The subsequent impact of the member on the body overcomes the force. The moveable member can then also be used, in one embodiment, to continue driving the body during system operation.
摘要翻译：提供了一种用于克服阻止数据存储装置的移动的力的方法和系统。本发明包括在可移动构件中产生动量，然后利用可移动构件的动量在固定体（例如，数据存储装置）上产生大的冲击力，以克服其上的运动抑制力。这是通过允许可移动构件沿独立于静止体的轨迹移动，从而在可移动构件中建立动量来实现的。会员对身体的后续影响克服了力量。因此，在一个实施例中，可移动构件可以在系统操作期间继续驱动身体。

9. 发明授权

US5870256A Tandem inertia lock disk drive 失效
标题翻译：串联惯性锁磁盘驱动器
公开(公告)号：US5870256A
公开(公告)日：1999-02-09
申请号：US927755
申请日：1997-09-11
申请人： Vijayeshwar Das Khanna , Suresh Kumar , Sri Muthuthamby Sri-Jayantha
发明人： Vijayeshwar Das Khanna , Suresh Kumar , Sri Muthuthamby Sri-Jayantha
IPC分类号： G11B5/54
CPC分类号： G11B5/54
摘要： A disk drive includes a data storage disk rotatably mounted in a housing. An access arm is rotatably mounted in the housing and has an access head at a distal end thereof for travel over the disk to write data thereto and read data therefrom. A pair of counter imbalanced inertia locks are operatively joined between the housing and the access arm for inertia latching the access arm upon shock loading of the access arm to prevent movement thereof over the disk irrespective of combinations of linear and angular shock loading.
摘要翻译：磁盘驱动器包括可旋转地安装在壳体中的数据存储盘。进入臂可旋转地安装在壳体中，并且在其远端具有进入头，用于在盘上移动以将数据写入其中并从中读取数据。一对计数器不平衡惯性锁可操作地连接在壳体和接入臂之间，用于在接入臂的冲击加载时惯性地锁定接入臂，以防止其在盘上的移动，而不管线性和角度冲击负载的组合如何。

10. 发明授权

US6034841A Disk drive with composite sheet metal and encapsulated plastic base 失效
标题翻译：带复合金属片和封装塑料底座的磁盘驱动器
公开(公告)号：US6034841A
公开(公告)日：2000-03-07
申请号：US87336
申请日：1998-05-29
申请人： Thomas Robert Albrecht , Vijayeshwar Das Khanna , Suresh Kumar , Sri Muthuthamby Sri-Jayantha
发明人： Thomas Robert Albrecht , Vijayeshwar Das Khanna , Suresh Kumar , Sri Muthuthamby Sri-Jayantha
IPC分类号： G11B25/04 , G11B33/02 , G11B5/012
CPC分类号： G11B33/02 , G11B25/043
摘要： A miniature removable disk drive that meets the CompactFlash type II form factor and interface specifications uses a composite sheet metal/plastic tub-shaped base for supporting the disk drive components, e.g., the spindle motor with attached disk, the voice coil motor actuator with attached read/write head, and the preamplifier/write driver electronics module. The composite base is a metal plate with a flange extending around its perimeter and a plastic frame that encapsulates the flange and surrounds the perimeter of the metal plate. The metal plate supports the disk drive spindle motor and voice coil motor actuator and is made of high magnetic permeability, low coercivity material so that it can form part of the magnetic circuit of the spindle motor and/or actuator. The flanges on the metal plate provide rigidity and allow the base to be fabricated by injection molding the plastic frame onto the metal base so that the plastic encapsulates the metal flanges to form the walls of the tub-shaped base. An electronics card is located beneath the metal plate and is electrically shielded from the read/write heads and electronics module by the metal plate. Top and bottom covers are attached to the frame to enclose the disk drive components and the electronics card. Because the frame is made of plastic the corners may be made with intricately shaped cutouts that allow elastomeric corner bumpers to be interlocked into the frame at the corners. The corner bumpers extend beyond the frame and the covers so as to provide shock protection if the miniature removable disk drive is dropped.
摘要翻译：符合CompactFlash II型外形尺寸和接口规格的微型可移动磁盘驱动器使用复合金属/塑料桶形基座来支撑磁盘驱动器组件，例如带有附加磁盘的主轴电机，附带的音圈电机执行器读/写头，以及前置放大/写入驱动器电子模块。复合基座是具有围绕其周边延伸的凸缘的金属板和塑料框架，其封装凸缘并且围绕金属板的周边。金属板支撑磁盘驱动器主轴电机和音圈电机执行器，并由高磁导率，低矫顽力材料制成，从而可以形成主轴电机和/或执行器的磁路的一部分。金属板上的凸缘提供刚性并允许通过将塑料框架注塑成金属基底来制造基座，使得塑料封装金属法兰以形成盆形基座的壁。电子卡位于金属板下方，并通过金属板与读/写头和电子模块电隔离。顶盖和底盖连接到框架以封闭磁盘驱动器组件和电子卡。由于框架由塑料制成，所以角部可以形成为具有复杂形状的切口，其允许弹性角部保险杠在拐角处与框架互锁。拐角缓冲器延伸超出框架和盖子，以便在微型可移动磁盘驱动器掉落时提供冲击保护。

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