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1. 发明授权

US08922937B1 Disk drive evaluating multiple vibration sensor outputs to enable write-protection 有权
标题翻译：评估多个振动传感器输出的磁盘驱动器，以实现写保护
公开(公告)号：US08922937B1
公开(公告)日：2014-12-30
申请号：US13451373
申请日：2012-04-19
申请人： Alain Chahwan , Orhan Beker , Chuanwen Ji
发明人： Alain Chahwan , Orhan Beker , Chuanwen Ji
IPC分类号： G11B21/02
CPC分类号： G11B19/042 , G11B5/59694
摘要： A disk drive is disclosed comprising a head actuated over a disk, and control circuitry including a vibration sensor. A position error signal (PES) is generated representing a radial location of the head over the disk, and the head is servoed radially over the disk in response to the PES. A first vibration signal is generated in response to the vibration sensor, and a second vibration signal in response to the PES. The first vibration signal is combined with the second vibration signal to generate a third vibration signal, and a vibration event is detected in response to the third vibration signal.
摘要翻译：公开了一种磁盘驱动器，包括在盘上驱动的磁头，以及包括振动传感器的控制电路。产生位置误差信号（PES），其表示头部在盘上的径向位置，并且头部响应于PES径向地盘绕在盘上。响应于振动传感器产生第一振动信号，响应于PES产生第二振动信号。第一振动信号与第二振动信号组合以产生第三振动信号，并且响应于第三振动信号检测振动事件。

2. 发明授权

US08564899B2 Disk drive decreasing a settle delay based on speed that a settle parameter adapts 失效
标题翻译：磁盘驱动器根据稳定参数适应的速度减小安定延迟
公开(公告)号：US08564899B2
公开(公告)日：2013-10-22
申请号：US13206354
申请日：2011-08-09
申请人： Mingji Lou , Xiuli Guo , Orhan Beker
发明人： Mingji Lou , Xiuli Guo , Orhan Beker
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks, and control circuitry operable to seek the head to a target track and settle the head on the target track during a settle time, adapt a settle parameter used to settle the head on the target track, access the target track after an access delay, and decrease the access delay based on a speed that the settle parameter adapts.
摘要翻译：公开了一种磁盘驱动器，其包括在包括多个轨道的盘上致动的磁头，以及控制电路，其可操作以在安置时间期间将磁头搜索到目标磁道并将磁头安置在目标磁道上，适应用于稳定的稳定参数目标轨道上的头部，在访问延迟之后访问目标轨道，并且基于稳定参数适应的速度来减小访问延迟。

3. 发明申请

US20070188911A1 Off track write protection using filtered position error signal 有权
标题翻译：使用滤波位置误差信号进行偏移写保护
公开(公告)号：US20070188911A1
公开(公告)日：2007-08-16
申请号：US11581911
申请日：2006-10-17
申请人： Jeffrey V. DeRosa , Orhan Beker
发明人： Jeffrey V. DeRosa , Orhan Beker
IPC分类号： G11B5/596
CPC分类号： G11B5/5526 , G11B5/5582 , G11B7/08505 , G11B7/08529 , G11B7/0946 , G11B19/04
摘要： Methods of filtering a position error signal (PES) indicative of a position of a transducer of a disk drive include obtaining sample position data for the transducer, eliminating selected data of the sample position data to provide a subset of the sample position data, obtaining a plurality of sets of preliminary filter coefficients based on the subset of the sample position data, obtaining a final set of filter coefficients from the plurality of sets of preliminary filter coefficients, and filtering a position error signal using the final set of filter coefficients. Corresponding disk drives are also disclosed
摘要翻译：过滤表示磁盘驱动器的换能器的位置的位置误差信号（PES）的方法包括获得用于换能器的采样位置数据，消除采样位置数据的选定数据以提供采样位置数据的子集，获得基于样本位置数据的子集的多组初步滤波器系数，从多组初步滤波器系数获得滤波器系数的最终集合，以及使用最终滤波器系数集合对位置误差信号进行滤波。还公开了相应的磁盘驱动器

4. 发明授权

US08508881B1 Disk drive employing system inversion for tuning seek to settle servo loop 有权
标题翻译：采用系统反转的磁盘驱动器进行调谐寻求稳定伺服环路
公开(公告)号：US08508881B1
公开(公告)日：2013-08-13
申请号：US13117036
申请日：2011-05-26
申请人： Alexander Babinski , Orhan Beker , Duc T. Phan , Donald Brunnett
发明人： Alexander Babinski , Orhan Beker , Duc T. Phan , Donald Brunnett
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： A method is disclosed of operating a disk drive, the disk drive comprising a disk having a plurality of tracks, a head, and a closed loop servo system comprising a seek servo loop and a settle servo loop for actuating the head over the disk. The seek servo loop is used to seek the head toward a target track. When the head approaches the target track, the settle servo loop is used to settle the head on the target track in response to a reference signal generated in response to a system inversion of the settle servo loop.
摘要翻译：公开了一种操作磁盘驱动器的方法，该磁盘驱动器包括具有多个轨道的磁盘，磁头和闭环伺服系统，该伺服系统包括寻道伺服回路和用于在盘上致动磁头的稳定伺服回路。寻道伺服回路用于朝向目标轨道寻找头部。当头部接近目标轨迹时，响应于响应于稳定伺服环路的系统反转而产生的参考信号，使用稳定伺服环路在目标轨迹上安置磁头。

5. 发明授权

US07839600B1 Disk drive employing data-based basis function expansion for tuning seek servo loop 有权
标题翻译：磁盘驱动器采用基于数据的基础功能扩展，用于调谐寻道伺服环路
公开(公告)号：US07839600B1
公开(公告)日：2010-11-23
申请号：US12434979
申请日：2009-05-04
申请人： Alexander Babinski , Orhan Beker , Duc T. Phan
发明人： Alexander Babinski , Orhan Beker , Duc T. Phan
IPC分类号： G11B5/596
CPC分类号： G11B5/5547 , G11B5/59627
摘要： A method of tuning a seek operation of a disk drive is disclosed, the disk drive comprising a disk, an actuator arm, a head coupled to a distal end of the actuator arm, a voice coil motor (VCM) for rotating the actuator arm about a pivot, and a closed loop servo system for generating a VCM control signal applied to the VCM. A function h is applied to the closed loop servo system and a corresponding output g of the closed loop servo system is measured. A reference signal is generated in response to a summation of a plurality of the function h, wherein each of the plurality of the function h is shifted by an offset and scaled by a coefficient, and the coefficients are generated in response to the measured output g.
摘要翻译：公开了一种调整磁盘驱动器的寻道操作的方法，磁盘驱动器包括盘，致动器臂，耦合到致动器臂的远端的磁头，用于使致动器臂旋转的音圈电机（VCM）枢轴和用于产生施加到VCM的VCM控制信号的闭环伺服系统。函数h被施加到闭环伺服系统，并且测量闭环伺服系统的对应的输出g。响应于多个函数h的求和而产生参考信号，其中多个函数h中的每一个被移位偏移并且被系数缩放，并且响应于测量的输出g产生系数。

6. 发明授权

US08760796B1 Reducing acoustic noise in a disk drive when exiting idle mode 有权
标题翻译：退出空闲模式时，减少磁盘驱动器中的声音噪声
公开(公告)号：US08760796B1
公开(公告)日：2014-06-24
申请号：US13153282
申请日：2011-06-03
申请人： Mingji Lou , Orhan Beker , Jenghung Chen
发明人： Mingji Lou , Orhan Beker , Jenghung Chen
IPC分类号： G11B5/596
CPC分类号： G11B5/5526 , G11B5/5586
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks, wherein each track comprises a plurality of servo sectors. When entering an idle mode, the head is floated over the disk, and when exiting the idle mode, a radial velocity of the head is measured, a seek distance is determined in response to the radial velocity, and a seek operation seeks the head the seek distance to a first track.
摘要翻译：公开了一种磁盘驱动器，包括在包括多个磁道的盘上致动的磁头，其中每个磁道包括多个伺服扇区。当进入空闲模式时，磁头浮在磁盘上，当退出空闲模式时，测量磁头的径向速度，根据径向速度确定寻道距离，寻道操作将磁头寻找到第一轨的距离。

7. 发明申请

US20130038962A1 DISK DRIVE DECREASING A SETTLE DELAY BASED ON SPEED THAT A SETTLE PARAMETER ADAPTS 失效
标题翻译：磁盘驱动器基于速度降低稳定延迟，安装一个稳定的参数适配器
公开(公告)号：US20130038962A1
公开(公告)日：2013-02-14
申请号：US13206354
申请日：2011-08-09
申请人： MINGJI LOU , XIULI GUO , ORHAN BEKER
发明人： MINGJI LOU , XIULI GUO , ORHAN BEKER
IPC分类号： G11B5/55
CPC分类号： G11B5/5547
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks, and control circuitry operable to seek the head to a target track and settle the head on the target track during a settle time, adapt a settle parameter used to settle the head on the target track, access the target track after an access delay, and decrease the access delay based on a speed that the settle parameter adapts.
摘要翻译：公开了一种磁盘驱动器，其包括在包括多个轨道的盘上致动的磁头，以及控制电路，其可操作以在安置时间期间将磁头搜索到目标磁道并将磁头安置在目标磁道上，适应用于稳定的稳定参数目标轨道上的头部，在访问延迟之后访问目标轨道，并且基于稳定参数适应的速度来减小访问延迟。

8. 发明授权

US07342737B2 Off track write protection using filtered position error signal 有权
标题翻译：使用滤波位置误差信号进行偏移写保护
公开(公告)号：US07342737B2
公开(公告)日：2008-03-11
申请号：US11581911
申请日：2006-10-17
申请人： Jeffrey V. DeRosa , Orhan Beker
发明人： Jeffrey V. DeRosa , Orhan Beker
IPC分类号： G11B5/596
CPC分类号： G11B5/5526 , G11B5/5582 , G11B7/08505 , G11B7/08529 , G11B7/0946 , G11B19/04
摘要： Methods of filtering a position error signal (PES) indicative of a position of a transducer of a disk drive include obtaining sample position data for the transducer, eliminating selected data of the sample position data to provide a subset of the sample position data, obtaining a plurality of sets of preliminary filter coefficients based on the subset of the sample position data, obtaining a final set of filter coefficients from the plurality of sets of preliminary filter coefficients, and filtering a position error signal using the final set of filter coefficients. Corresponding disk drives are also disclosed.
摘要翻译：过滤表示磁盘驱动器的换能器的位置的位置误差信号（PES）的方法包括获得用于换能器的采样位置数据，消除采样位置数据的选定数据以提供采样位置数据的子集，获得基于样本位置数据的子集的多组初步滤波器系数，从多组初步滤波器系数获得滤波器系数的最终集合，以及使用最终滤波器系数集合对位置误差信号进行滤波。还公开了相应的磁盘驱动器。

9. 发明申请

US20070253099A1 Controlling seeks using non-linear switching curves 失效
标题翻译：控制寻求使用非线性切换曲线
公开(公告)号：US20070253099A1
公开(公告)日：2007-11-01
申请号：US11708817
申请日：2007-02-21
申请人： Jeffrey V. Derosa , Orhan Beker
发明人： Jeffrey V. Derosa , Orhan Beker
IPC分类号： G11B5/596
CPC分类号： G11B5/5547
摘要： Controlling seeking of a transducer includes accelerating the transducer to a seek velocity, generating a linearized switching curve defining a position and velocity of the transducer at which deceleration should begin, and controlling the velocity of the transducer in response to the current position and seek velocity of the transducer relative to the linearized switching curve. The linearized switching curve has a slope and an offset that are determined in response to the seek velocity and a current position of the transducer relative to a nonlinear switching curve.
摘要翻译：控制换能器的寻求包括将换能器加速到寻道速度，产生线性化的切换曲线，该线性化切换曲线限定了应该开始减速的换能器的位置和速度，并响应于当前位置和寻找速度来控制换能器的速度传感器相对于线性化切换曲线。线性化切换曲线具有响应于搜索速度和换能器相对于非线性切换曲线的当前位置确定的斜率和偏移。

10. 发明授权

US08937784B1 Disk drive employing feed-forward compensation and phase shift compensation during seek settling 有权
标题翻译：在寻道稳定期间采用前馈补偿和相移补偿的磁盘驱动器
公开(公告)号：US08937784B1
公开(公告)日：2015-01-20
申请号：US13564653
申请日：2012-08-01
申请人： Kexiu Liu , Orhan Beker , Mingji Lou
发明人： Kexiu Liu , Orhan Beker , Mingji Lou
IPC分类号： G11B21/02
CPC分类号： G11B5/5547 , G11B5/59688
摘要： A method of operating a disk drive is disclosed wherein the disk drive comprises a disk comprising a plurality of tracks, a head, and a closed loop servo system comprising a seek servo loop and a settle servo loop for actuating the head over the disk. When the head approaches a target track during a seek operation, the settle servo loop is enabled wherein a feedback control signal is generated based on a measured state of the servo system. The feedback control signal is adjusted with a feed-forward compensation. A phase shift between the measured state of the servo system and a corresponding estimated state of the servo system is compensated. The head is settled on the target track in response to the feed-forward compensation.
摘要翻译：公开了一种操作磁盘驱动器的方法，其中磁盘驱动器包括包括多个磁道的磁盘，磁头和闭环伺服系统，其包括寻道伺服回路和用于在盘上致动磁头的稳定伺服回路。当在寻道操作期间磁头接近目标磁道时，启用稳定伺服环路，其中基于伺服系统的测量状态产生反馈控制信号。反馈控制信号通过前馈补偿进行调整。伺服系统的测量状态与伺服系统的对应的估计状态之间的相移被补偿。响应前馈补偿，头部定位在目标轨道上。

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