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

US06115203A Efficient drive-level estimation of written-in servo position error 失效
标题翻译：写入伺服位置误差的高效驱动级估计
公开(公告)号：US06115203A
公开(公告)日：2000-09-05
申请号：US16552
申请日：1998-01-30
申请人： Hai T. Ho , Toan Q. Doan , Bruce A. Liikanen
发明人： Hai T. Ho , Toan Q. Doan , Bruce A. Liikanen
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： The invention relates to a disk drive servo apparatus, and method for implementing the same, that maintains a transducer on a substantially non-perturbed path despite the fact that the tracks were written in a perturbed manner by a servo track writer. The invention utilizes a non-causal filter to determine servo track writer repetitive run-out (STW.sub.-- RRO) values for each sector of each track at the drive level. The STW.sub.-- RRO values are stored, preferably in their respective servo sectors on the surface of the disk, for use during track following operations. During read and write operations, the STW.sub.-- RRO values are retrieved from storage and are used to generate position error signals necessary to maintain the transducer on the desired path.
摘要翻译：本发明涉及一种磁盘驱动器伺服装置及其实施方法，其将传感器维持在基本上不受干扰的路径上，尽管轨道以伺服轨道写入器以扰动方式写入。本发明利用非因果滤波器来确定在驱动级别的每个轨道的每个扇区的伺服轨迹写入器重复耗尽（STW-RRO）值。 STW-RRO值优选地存储在盘的表面上的它们各自的伺服扇区中，以便在跟踪操作期间使用。在读写操作期间，从存储器检索STW-RRO值，并用于产生将换能器保持在所需路径上所必需的位置误差信号。

2. 发明授权

US06292324B1 Disk drive with compensation values calculated using a non-causal impulse response 有权
标题翻译：使用非因果脉冲响应计算的补偿值的磁盘驱动器
公开(公告)号：US06292324B1
公开(公告)日：2001-09-18
申请号：US09574493
申请日：2000-05-19
申请人： Hai T. Ho , Toan Q. Doan , Bruce A. Liikanen
发明人： Hai T. Ho , Toan Q. Doan , Bruce A. Liikanen
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： The invention relates to a disk drive servo apparatus, and method for implementing the same, that maintains a transducer on a substantially non-perturbed path despite the fact that the tracks were written in a perturbed manner by a servo track writer. The invention utilizes a non-causal filter to determine servo track writer repetitive run-out (STW_RRO) values for each sector of each track at the drive level. The STW_RRO values are stored, preferably in their respective servo sectors on the surface of the disk, for use during track following operations. During read and write operations, the STW_RRO values are retrieved from storage and are used to generate position error signals necessary to maintain the transducer on the desired path.
摘要翻译：本发明涉及一种磁盘驱动器伺服装置及其实施方法，其将传感器维持在基本上不受干扰的路径上，尽管轨道以伺服轨道写入器以扰动方式写入。本发明利用非因果滤波器来确定在驱动级别的每个轨道的每个扇区的伺服轨迹写入器重复跳动（STW_RRO）值。 STW_RRO值最好存储在磁盘表面的各自的伺服扇区中，用于跟踪跟踪操作。在读写操作期间，从存储器中检索STW_RRO值，并用于产生将换能器保持在所需路径上所必需的位置误差信号。

3. 发明授权

US06628472B1 Method and apparatus for feedforward cancellation using a phase lock loop 失效
标题翻译：使用锁相环进行前馈消除的方法和装置
公开(公告)号：US06628472B1
公开(公告)日：2003-09-30
申请号：US09686836
申请日：2000-10-11
申请人： Hai T. Ho
发明人： Hai T. Ho
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： A method and apparatus are provided for generating a feedforward cancellation signal for a next sector of a disc in a disc drive. To form the cancellation signal, the method and apparatus generate a trigonometric value having the phase and frequency of a nonrepeatable runout error by passing a position error signal through a phase lock loop. An amplitude is determined for the cancellation signal based on the position error signal. The amplitude is then multiplied by the trigonometric value to from the cancellation signal.
摘要翻译：提供了一种用于产生用于盘驱动器中的盘的下一个扇区的前馈消除信号的方法和装置。为了形成消除信号，该方法和装置通过使位置误差信号通过锁相环产生具有不可重复跳动误差的相位和频率的三角值。基于位置误差信号确定抵消信号的幅度。然后将振幅乘以三角值从消除信号。

4. 发明授权

US06654197B1 Disc drive dynamics identification using synchronous excitation signal 失效
标题翻译：使用同步激励信号的光盘驱动器动态识别
公开(公告)号：US06654197B1
公开(公告)日：2003-11-25
申请号：US09689384
申请日：2000-10-12
申请人： Hai T. Ho
发明人： Hai T. Ho
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： A method and system for identifying the resonance characteristics of a disc drive. A repetitive excitation signal is applied to the actuator assembly. The repetitive excitation signal has a period substantially equal to a positive integer multiple of a period of revolution of the disc. The position of the read/write head relative to a target track on the disc surface is sensed. The sensed position of the read/write head is compared to a desired position of the read/write head and apposition error signal indicative of the difference between the sensed position and the desired position is generated. The position error signal is time averaged over multiple revolutions of the disc to obtain an averaged repetitive position error signal. The resonance characteristics of the drive is determined based on a correlation of the averaged repetitive position error signal with respect to the repetitive excitation signal.
摘要翻译：一种用于识别盘驱动器的共振特性的方法和系统。重复的激励信号被施加到致动器组件。重复激励信号具有基本上等于盘旋转周期的正整数倍的周期。读/写头相对于盘表面上的目标轨迹的位置被感测。将读/写头的感测位置与读/写头的期望位置进行比较，并产生表示感测到的位置与期望位置之间的差异的并置误差信号。位置误差信号在盘的多次旋转中被平均以获得平均的重复位置误差信号。基于平均重复位置误差信号相对于重复激励信号的相关性来确定驱动器的谐振特性。

5. 发明授权

US06819521B2 Repeated runout position error compensation in a disc drive servo system 失效
标题翻译：在磁盘驱动器伺服系统中重复跳动位置误差补偿
公开(公告)号：US06819521B2
公开(公告)日：2004-11-16
申请号：US09877053
申请日：2001-06-08
申请人： Hai T. Ho , Justin Won , Mirmehdi L. Abrishamchian , Gregory A. Campbell
发明人： Hai T. Ho , Justin Won , Mirmehdi L. Abrishamchian , Gregory A. Campbell
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： An apparatus and method for compensating repeated runout position error in a disc drive data handling system having an actuator assembly which supports a head adjacent a recording surface. A servo loop generates a position error signal (PES) to control the position of the head. A digital filter is configured to place a notch in an error sensitivity function relating the PES to the repeated runout position error, with the notch being nominally centered at a frequency of rotation of the recording surface. The filter thereafter filters the PES to generate compensation signals that are injected into the servo loop. At least selected filter parameters are determined by measuring the frequency response of the servo loop and used as a priori knowledge to produce a loop matching effect that results in a consistent convergence rate for any targeted frequency to be filtered.
摘要翻译：一种补偿盘驱动数据处理系统中的重复跳动位置误差的装置和方法，所述盘驱动器数据处理系统具有支撑靠近记录表面的头部的致动器组件。伺服回路产生位置误差信号（PES）以控制头部的位置。数字滤波器被配置成将陷波放置在将PES与重复的跳动位置误差相关联的误差灵敏度功能中，其中凹口名义上以记录表面的旋转频率为中心。滤波器之后过滤PES以产生注入伺服环路的补偿信号。至少选择的滤波器参数通过测量伺服环路的频率响应来确定，并用作先验知识以产生环路匹配效应，其导致任何要被滤波的目标频率的一致的收敛速率。

6. 发明授权

US5621586A Retaining slot for data cartridge library system 失效
标题翻译：数据盒式磁带库系统的保留槽
公开(公告)号：US5621586A
公开(公告)日：1997-04-15
申请号：US610482
申请日：1996-03-04
申请人： Bennett C. Hinnen , Hai T. Ho , Eric A. Rinard , Gregory S. Rinard , Brian A. Ruff , Nathan C. Thompson , Hossein Zia-Shakeri
发明人： Bennett C. Hinnen , Hai T. Ho , Eric A. Rinard , Gregory S. Rinard , Brian A. Ruff , Nathan C. Thompson , Hossein Zia-Shakeri
IPC分类号： G11B15/68 , G11B17/24
CPC分类号： G11B15/686 , G11B17/24
摘要： A storage system (10) is disclosed that provides random access storage/retrieval of data on data cartridges within the storage system (10). In one embodiment, the storage system (10) includes a storage array (20), a player/recorder device (22), a guard device (80) and a cartridge transport device (40). The player/recorder device (22) and the transport device (40) are positioned on substantially opposite sides of the storage array. The transport device (40) moves cartridges between the storage array (20) and the player/recorder device (22). The guard device (80) pushes a prolapsed data cartridge back into the storage array (20) and/or limits the distance a data cartridge will prolapse from the storage array (20).
摘要翻译：公开了一种存储系统（10），其提供在存储系统（10）内的数据盒上的数据的随机访问存储/检索。在一个实施例中，存储系统（10）包括存储阵列（20），播放器/记录器装置（22），保护装置（80）和盒输送装置（40）。播放器/记录器装置（22）和输送装置（40）位于存储阵列的基本相对的两侧。运送装置（40）在存储阵列（20）和播放器/记录装置（22）之间移动盒。防护装置（80）将脱垂的数据盒推回到存储阵列（20）中，和/或限制数据盒从存储阵列（20）脱落的距离。

7. 发明授权

US06618219B1 Method and apparatus for feedforward cancellation using a peak detector 失效
标题翻译：使用峰值检测器进行前馈消除的方法和装置
公开(公告)号：US06618219B1
公开(公告)日：2003-09-09
申请号：US09686697
申请日：2000-10-11
申请人： Hai T. Ho
发明人： Hai T. Ho
IPC分类号： G11B5596
CPC分类号： G11B21/106 , G11B5/59627
摘要： A method and apparatus are provided for generating a feedforward cancellation signal for a next sector of a disc in a disc drive. To form the cancellation signal, the method and apparatus estimate the phase and frequency of a nonrepeatable runout error in a position error signal. A peak detector is then used to identify a peak amplitude of the nonrepeatable runout error for a current sector. Using the peak amplitude, an amplitude is determined for the cancellation signal for the next sector. A time-varying signal is then evaluated based on the estimated phase and frequency and the result of the evaluation is multiplied by the amplitude to produce the cancellation signal.
摘要翻译：提供了一种用于产生用于盘驱动器中的盘的下一个扇区的前馈消除信号的方法和装置。为了形成消除信号，该方法和装置估计位置误差信号中的不可重复跳动误差的相位和频率。然后使用峰值检测器来识别当前扇区的不可重复跳动误差的峰值幅度。使用峰值幅度，确定下一个扇区的消除信号的幅度。然后基于估计的相位和频率来评估时变信号，并将评估结果乘以振幅以产生消除信号。

8. 发明授权

US5682276A Data cartridge library system architecture 失效
标题翻译：数据盒式磁带库系统架构
公开(公告)号：US5682276A
公开(公告)日：1997-10-28
申请号：US651326
申请日：1996-05-22
申请人： Bennett C. Hinnen , Hai T. Ho , Eric A. Rinard , Gregory S. Rinard , Brian A. Ruff , Nathan C. Thompson , Hossein Zia-Shakeri
发明人： Bennett C. Hinnen , Hai T. Ho , Eric A. Rinard , Gregory S. Rinard , Brian A. Ruff , Nathan C. Thompson , Hossein Zia-Shakeri
IPC分类号： G11B15/68 , G11B17/24
CPC分类号： G11B15/686 , G11B17/24
摘要： A storage system (10) is disclosed that provides random access storage/retrieval of data on data cartridges within the storage system (10). In one embodiment, the storage system (10) includes a storage array (20), a player/recorder device (22), and a cartridge transport device (40). The player/recorder device (22), a guard device (80) and the transport device (40) are positioned on substantially opposite sides of the storage array. The transport device (40) moves cartridges between the storage array (20) and the player/recorder device (22). The guard device (80) pushes a prolapsed data cartridge back into the storage array (20) and/or limits the distance a data cartridge will prolapse from the storage array (20).
摘要翻译：公开了一种存储系统（10），其提供在存储系统（10）内的数据盒上的数据的随机访问存储/检索。在一个实施例中，存储系统（10）包括存储阵列（20），播放器/记录器装置（22）和盒输送装置（40）。播放器/记录器装置（22），保护装置（80）和传送装置（40）位于存储阵列的基本相对的两侧。运送装置（40）在存储阵列（20）和播放器/记录装置（22）之间移动盒。防护装置（80）将脱垂的数据盒推回到存储阵列（20）中，和/或限制数据盒从存储阵列（20）脱落的距离。

9. 发明授权

US06636376B1 Disc drive resonance disturbance cancellation filter 有权
标题翻译：光盘驱动器共振干扰消除滤波器
公开(公告)号：US06636376B1
公开(公告)日：2003-10-21
申请号：US09689312
申请日：2000-10-12
申请人： Hai T. Ho
发明人： Hai T. Ho
IPC分类号： G11B5596
CPC分类号： G11B5/59688
摘要： An apparatus and method for canceling nonrepeatable runout position error in a disc drive. Pursuant to the method, a frequency of a specified nonrepeatable runout disturbance is determined. A position error signal indicative of a position of a read/write head relative to a track is received. A signal is generated based upon the frequency of the specified nonrepeatable runout disturbance and the received position error signal. The generated signal is applied to the servo loop. Applying the generated signal to the servo loop cancels a component of the position error signal arising from the specified nonrepeatable runout disturbance. In an illustrative embodiment, applying the generated signal to the servo loop produces a notch in an error sensitivity function relating the position error signal to a general nonrepeatable runout disturbance, the notch being centered at the frequency of the specified nonrepeatable runout disturbance.
摘要翻译：一种用于消除磁盘驱动器中不可重复跳动位置误差的装置和方法。根据该方法，确定指定的不可重复跳动扰动的频率。接收指示读/写头相对于轨道的位置的位置误差信号。基于指定的不可重复跳动干扰和接收到的位置误差信号的频率产生信号。所产生的信号被施加到伺服回路。将产生的信号应用到伺服环路会消除由指定的不可重复跳动扰动引起的位置误差信号的分量。在说明性实施例中，将产生的信号施加到伺服环路产生误差灵敏度函数中的陷波，其将位置误差信号与一般不可重复跳动扰动相关联，该陷波以指定的不可重复跳动扰动的频率为中心。

10. 发明授权

US5555143A Data cartridge library system architecture 失效
标题翻译：数据盒式磁带库系统架构
公开(公告)号：US5555143A
公开(公告)日：1996-09-10
申请号：US374160
申请日：1995-01-17
申请人： Bennett C. Hinnen , Hai T. Ho , Eric A. Rinard , Gregory S. Rinard , Brian A. Ruff , Nathan C. Thompson , Hossein Zia-Shakeri
发明人： Bennett C. Hinnen , Hai T. Ho , Eric A. Rinard , Gregory S. Rinard , Brian A. Ruff , Nathan C. Thompson , Hossein Zia-Shakeri
IPC分类号： G11B15/68 , G11B17/24
CPC分类号： G11B15/686 , G11B17/24
摘要： A storage system (10) is disclosed that provides random access storage/retrieval of data on data cartridges within the storage system (10). In one embodiment, the storage system (10) includes a storage array (20), a player/recorder device (22), a guard device (80) and a cartridge transport device (40). The player/recorder device (22) and the transport device (40 ) are positioned on substantially opposite sides of the storage array. The transport device (40) moves cartridges between the storage array (20) and the player/recorder device (22). The guard device (80) pushes a prolapsed data cartridge back into the storage array (20) and/or limits the distance a data cartridge will prolapse from the storage array (20).
摘要翻译：公开了一种存储系统（10），其提供在存储系统（10）内的数据盒上的数据的随机访问存储/检索。在一个实施例中，存储系统（10）包括存储阵列（20），播放器/记录器装置（22），保护装置（80）和盒输送装置（40）。播放器/记录器装置（22）和输送装置（40）位于存储阵列的基本相对的两侧。运送装置（40）在存储阵列（20）和播放器/记录装置（22）之间移动盒。防护装置（80）将脱垂的数据盒推回到存储阵列（20）中，和/或限制数据盒从存储阵列（20）脱落的距离。

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