专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07023640B1 Acceleration disturbance detection subsystem for use with disk drives 有权
标题翻译：用于磁盘驱动器的加速度干扰检测子系统
公开(公告)号：US07023640B1
公开(公告)日：2006-04-04
申请号：US10856400
申请日：2004-05-27
申请人： Raffi Codilian , Lan V. Ngo , Norman D. Gardner
发明人： Raffi Codilian , Lan V. Ngo , Norman D. Gardner
IPC分类号： G11B19/04 , G11B21/02 , G11B19/02
CPC分类号： G11B19/04 , G11B5/5582 , G11B5/596
摘要： A disk drive comprising a first sensor mounted on a nominally stationary portion of the disk drive and adapted to detect acceleration disturbances of the disk drive. The disk drive further comprising: a dual-function subsystem having a first circuit adapted to provide a write-inhibit signal and a second circuit adapted to provide a feed-forward basis signal, the dual-function subsystem adapted to receive a first sensor signal from the first sensor and to provide (a) the write-inhibit signal based on the received first sensor signal and a first threshold value, and (b) the feed-forward basis signal based on the received first sensor signal.
摘要翻译：一种磁盘驱动器，包括安装在磁盘驱动器的标称静止部分上并适于检测磁盘驱动器的加速度干扰的第一传感器。所述磁盘驱动器还包括：双功能子系统，具有适于提供写禁止信号的第一电路和适于提供前馈基准信号的第二电路，所述双功能子系统适于从并且基于所接收的第一传感器信号和第一阈值提供（a）禁止写入信号，以及（b）基于所接收的第一传感器信号的前馈基准信号。

2. 发明授权

US06914743B1 Vibration cancellation in a disk drive by using an acceleration sensor and adaptively adjusting its gain to minimize external acceleration effects 失效
标题翻译：通过使用加速度传感器对磁盘驱动器进行振动消除，并自适应调整其增益以最小化外部加速度效应
公开(公告)号：US06914743B1
公开(公告)日：2005-07-05
申请号：US09728626
申请日：2000-11-30
申请人： Aswartha Narayana , Raffi Codilian , Lan V. Ngo
发明人： Aswartha Narayana , Raffi Codilian , Lan V. Ngo
IPC分类号： G11B5/55 , G11B5/596
CPC分类号： G11B5/5582 , G11B5/59694
摘要： Disclosed is a disk drive using an accelerometer to sense linear vibration and cancel its effects with an adaptive algorithm during track following. The accelerometer is oriented to detect acceleration associated with torque that tends to cause the actuator to move off-track notwithstanding the efforts of the servo control system. The accelerometer's filtered output is used to modify the control effort. The disk drive uses the position error signal to adaptively filter the accelerometer's output in an effort to mathematically converge on a set of optimal filter coefficients and thereby reduce the effect of vibration that may otherwise impose a torque on the actuator.
摘要翻译：公开了一种磁盘驱动器，其使用加速度计来感测线性振动并且在跟踪期间利用自适应算法来消除其影响。加速度计被定向以检测与扭矩相关联的加速度，尽管伺服控制系统的努力，倾向于使致动器移动离开轨道。加速度计的滤波输出用于修改控制功能。磁盘驱动器使用位置误差信号来自适应地过滤加速度计的输出，以便在数学上收敛于一组最佳滤波器系数，从而减少否则在致动器上施加扭矩的振动的影响。

3. 发明授权

US06710966B1 Method for reducing an effect of vibration on a disk drive during a track following operation by adjusting an adaptive-filter gain applied to an acceleration sensor signal 有权
标题翻译：用于通过调整施加于加速度传感器信号的自适应滤波器增益来减小轨道跟随操作期间振动对磁盘驱动器的影响的方法
公开(公告)号：US06710966B1
公开(公告)日：2004-03-23
申请号：US10003943
申请日：2001-10-23
申请人： Raffi Codilian , Aswartha Narayana , Lan V. Ngo
发明人： Raffi Codilian , Aswartha Narayana , Lan V. Ngo
IPC分类号： G11B5596
CPC分类号： G11B5/59627 , G11B5/59694
摘要： The present invention may be embodied in a method, implemented in a disk drive, for adaptively reducing an effect of vibration during a track following operation. The disk drive includes a disk and a rotary actuator. The disk includes distributed position information in a plurality of servo wedges. The actuator carries a transducer and pivots on a base of the disk drive. The actuator may exhibit an imbalance that may be affected by a linear vibration. In the method, a sensor signal is generated that is responsive to a vibration to the disk drive. The sensor value is modified based on an adaptive-filter gain to generate a position error adjustment signal for modifying a nominal position error signal. The adaptive-filter gain is then altered based on an adjusted position error signal and the sensor value associated with the current servo wedge for use during a next servo wedge.
摘要翻译：本发明可以以在磁盘驱动器中实施的方法来实现，用于在跟踪操作期间自适应地减小振动的影响。磁盘驱动器包括盘和旋转致动器。盘包括多个伺服楔中的分布位置信息。执行器承载一个传感器并在磁盘驱动器的基座上枢转。致动器可能表现出可能受到线性振动影响的不平衡。在该方法中，产生响应于磁盘驱动器的振动的传感器信号。基于自适应滤波器增益修改传感器值，以产生用于修改标称位置误差信号的位置误差调整信号。然后基于调整的位置误差信号和与当前伺服楔形件相关联的传感器值来改变自适应滤波器增益，以在下一个伺服楔形中使用。

4. 发明授权

US06937423B1 Reducing effects of rotational vibration in disk drive 失效
标题翻译：减少磁盘驱动器中旋转振动的影响
公开(公告)号：US06937423B1
公开(公告)日：2005-08-30
申请号：US10773526
申请日：2004-02-06
申请人： Lan V. Ngo , Raffi Codilian
发明人： Lan V. Ngo , Raffi Codilian
IPC分类号： G11B5/55 , G11B5/596 , G11B33/08
CPC分类号： G11B5/5582 , G11B5/59694 , G11B33/08
摘要： A method of reducing rotational vibration effects in a disk drive by sensing vibration in a sensor and generating corresponding sensor data; deriving a statistical sensor (SS) value based on the sensor data; deriving a statistical position error signal (SPES) value from servo sectors read by the head; comparing the SS value to a SS-threshold value; comparing SPES value to a SPES-threshold value; and generating a feed-forward command effort signal for reducing rotational vibration effects if the SS value exceeds the SS-threshold value and if SPES value exceeds the SPES-threshold value.
摘要翻译：通过感测传感器中的振动并产生相应的传感器数据来减少磁盘驱动器中的旋转振动效应的方法; 基于传感器数据得出统计传感器（SS）值; 从头部读取的伺服扇区得到统计位置误差信号（SPES）值; 将SS值与SS阈值进行比较; 将SPES值与SPES阈值进行比较; 并且如果SS值超过SS阈值并且SPES值超过SPES阈值，则产生用于减少旋转振动效应的前馈命令努力信号。

5. 发明授权

US08307156B1 Adaptively modifying pre-read operations within a rotating media storage device 有权
标题翻译：自适应地修改旋转介质存储设备内的预读操作
公开(公告)号：US08307156B1
公开(公告)日：2012-11-06
申请号：US12952088
申请日：2010-11-22
申请人： Raffi Codilian , Gregory B. Thelin
发明人： Raffi Codilian , Gregory B. Thelin
IPC分类号： G06F12/00
CPC分类号： G11B5/02 , G06F3/061 , G06F3/0656 , G06F3/0676 , G06F12/0866 , G11B5/5547
摘要： A rotating media storage device (RMSD) that adaptively modifies pre-read operations is disclosed. The RMSD schedules a pre-read data segment on a second track of disk, commands a movable head to seek to the second track, and if an on-track condition is not met for the scheduled pre-read data segment, modifies the pre-read operation. In one example, modifying the pre-read operation includes canceling the pre-read operation and then performing a read data operation.
摘要翻译：公开了一种自适应地修改预读操作的旋转介质存储设备（RMSD）。 RMSD在磁盘的第二磁道上调度预读数据段，命令可移动磁头寻找到第二磁道，并且如果调度的预读数据段不符合轨上条件，读操作。在一个示例中，修改预读操作包括取消预读操作，然后执行读数据操作。

6. 发明授权

US07274639B1 Disk drive performing multi-level prioritization of entries in a suspect sector list to identify and relocate defective data sectors 有权
标题翻译：磁盘驱动器执行可疑扇区列表中的条目的多级优先级以识别和重定位有缺陷的数据扇区
公开(公告)号：US07274639B1
公开(公告)日：2007-09-25
申请号：US10850850
申请日：2004-05-21
申请人： Raffi Codilian , Dalwinder Singh
发明人： Raffi Codilian , Dalwinder Singh
IPC分类号： G11B7/00
CPC分类号： G11B20/1883 , G11B20/1879 , G11B2020/1893 , G11B2220/2516
摘要： A disk drive is disclosed comprising a disk having a plurality of data tracks, wherein each data track comprises a plurality of data sectors, and a head is actuated over the disk. A suspect sector list (SSL) stores a plurality of SSL entries, wherein each SSL entry identifies at least one suspect data sector. The disk drive further comprises a disk controller for executing an access command received from a host computer to access at least one of the data sectors. If an error is detected while executing the access command, the disk controller generates an SSL entry having a priority level selected from at least three priority levels and adds the SSL entry to the SSL. A verification operation is executed for each suspect data sector identified by each SSL entry, wherein the SSL entries are processed relative to the priority level assigned to each SSL entry.
摘要翻译：公开了一种磁盘驱动器，其包括具有多个数据磁道的磁盘，其中每个数据磁道包括多个数据扇区，并且磁头在盘上被致动。可疑扇区列表（SSL）存储多个SSL条目，其中每个SSL条目标识至少一个可疑数据扇区。磁盘驱动器还包括盘控制器，用于执行从主计算机接收的访问命令以访问数据扇区中的至少一个。如果在执行访问命令时检测到错误，则磁盘控制器将生成具有从至少三个优先级中选择的优先级的SSL条目，并将SSL条目添加到SSL。对由每个SSL条目标识的每个可疑数据扇区执行验证操作，其中相对于分配给每个SSL条目的优先级来处理SSL条目。

7. 发明授权

US07031104B1 Disk drive having guide-vanes 有权
标题翻译：磁盘驱动器具有导向叶片
公开(公告)号：US07031104B1
公开(公告)日：2006-04-18
申请号：US10137481
申请日：2002-04-30
申请人： Arafat M. Butt , Raffi Codilian , Kin-Cheok Pong
发明人： Arafat M. Butt , Raffi Codilian , Kin-Cheok Pong
IPC分类号： G11B33/14 , G11B5/54
CPC分类号： G11B5/6005 , G11B5/40 , G11B33/08 , G11B33/14
摘要： A disk drive includes an enclosure, a rotatable disk and an actuator arm, and also includes a plurality of arcuate channels. Airflow is created within the enclosure when the disk rotates. The plurality of arcuate channels facing the disk to decrease the turbulence of the airflow with respect to the actuator arm. The arcuate channels are formed on at least one portion of the enclosure.
摘要翻译：磁盘驱动器包括外壳，可旋转盘和致动器臂，并且还包括多个弧形通道。当磁盘旋转时，在外壳内创建气流。多个弓形通道面对盘以减小气流相对于致动臂的湍流。弓形通道形成在外壳的至少一部分上。

8. 发明授权

US06930848B1 Back EMF voltage transducer/generator to convert mechanical energy to electrical energy for use in small disk drives 失效
标题翻译：反电动势电压传感器/发电机将机械能转换为电能用于小型磁盘驱动器
公开(公告)号：US06930848B1
公开(公告)日：2005-08-16
申请号：US10185932
申请日：2002-06-28
申请人： Raffi Codilian , Kamran Oveyssi
发明人： Raffi Codilian , Kamran Oveyssi
IPC分类号： G11B19/00 , G11B25/04 , G11B33/12
CPC分类号： G11B33/122 , G11B19/00 , G11B25/043
摘要： A mobile host device configured to draw electrical energy from an energy storage device includes a disk drive. The disk drive includes a disk drive enclosure including a base, a spindle motor attached to the base, a disk positioned on the spindle motor, a generator and a charging circuit. The generator may be coupled to the disk drive enclosure and/or the mobile host device and generates electrical energy from the motion of the mobile host device and/or disk drive. The charging circuit is configured to charge the energy storage device using the electrical energy generated by the generator.
摘要翻译：被配置为从能量存储装置吸取电能的移动主机装置包括磁盘驱动器。磁盘驱动器包括一个磁盘驱动器机壳，包括一个底座，一个连接到该底座的主轴电机，一个位于主轴电机上的磁盘，一个发电机和一个充电电路。发电机可以耦合到磁盘驱动器机箱和/或移动主机设备，并且从移动主机设备和/或磁盘驱动器的运动产生电能。充电电路被配置为使用由发电机产生的电能对能量存储装置充电。

9. 发明授权

US06847502B1 Repeatable runout determination within a rotating media storage device 失效
标题翻译：旋转介质存储设备内的可重复跳动确定
公开(公告)号：US06847502B1
公开(公告)日：2005-01-25
申请号：US10185983
申请日：2002-06-28
申请人： Raffi Codilian
发明人： Raffi Codilian
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： A rotating media storage device (RMSD) includes a disk having at least one track with a plurality of servo wedges, a moveable head, and a microprocessor. The microprocessor receives a plurality of position error signal (PES) values during track following and sums PES values for a plurality of different sets of servo wedges of the track to generate a plurality of shifted summed position error signal (SSPES) values. The microprocessor shifts the plurality of generated SSPES values by a phase shift value to generate a plurality of corrected shifted summed position error signal (CSSPES) values, which correspond to the repeatable runout (RRO) of the disk.
摘要翻译：旋转介质存储装置（RMSD）包括具有至少一个具有多个伺服楔的轨道的盘，可动头和微处理器。微处理器在跟踪跟踪期间接收多个位置误差信号（PES）值，并且对于轨道的多个不同伺服楔形集合的PES值求和，以产生多个移位的加和位置误差信号（SSPES）值。微处理器将多个生成的SSPES值移位相移值，以产生与盘的可重复跳动（RRO）相对应的多个校正的移位的加法位置误差信号（CSSPES）值。

10. 发明授权

US06795262B1 Method of modifying on-track declaration algorithm of a disk drive based upon detection of external vibration condition 有权
标题翻译：基于外部振动条件的检测来修改磁盘驱动器的轨道上声明算法的方法
公开(公告)号：US06795262B1
公开(公告)日：2004-09-21
申请号：US10185970
申请日：2002-06-28
申请人： Raffi Codilian , Kent W. Gibbons , Steven L. Webb
发明人： Raffi Codilian , Kent W. Gibbons , Steven L. Webb
IPC分类号： G11B1904
CPC分类号： G11B5/5582 , G11B5/596 , G11B19/04
摘要： A method of expanding the on-track operational range of a disk drive based upon detection of an external vibration condition. The method involves detecting that a vibration state exists and, while the existence of the vibration state is detected, modifying the default on-track-declaration algorithm such that a data transfer operation can be completed in less time than if the default on-track-declaration algorithm was in use.
摘要翻译：一种基于外部振动条件的检测来扩展磁盘驱动器的在轨操作范围的方法。该方法涉及检测到振动状态存在，并且当检测到振动状态的存在时，修改默认的在轨声明算法，使得数据传送操作可以在比默认的在轨 - 声明算法正在使用中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式