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1. 发明授权

US06975477B1 Micro actuator DC gain calibration scheme for HDD dual-stage actuator systems 失效
标题翻译：用于HDD双级执行器系统的微执行器直流增益校准方案
公开(公告)号：US06975477B1
公开(公告)日：2005-12-13
申请号：US10430368
申请日：2003-05-05
申请人： Xiaoping Hu , Lin Guo , Wei Guo , Jong-Ming Lin
发明人： Xiaoping Hu , Lin Guo , Wei Guo , Jong-Ming Lin
IPC分类号： G11B5/55 , G11B5/596 , G11B15/18
CPC分类号： G11B5/596 , G11B5/5552
摘要： A servo system for displacing a head relative to a disk of a hard disk drive. The servo system comprises a dual-stage actuator, a calibration signal generator, and a calibration factor generator. The calibration signal generator generates a calibration signal having a calibration portion. The calibration factor generator generates a calibration factor. The servo system operates in operating and calibration servo modes. In the operating mode, the system defines first and second servo loops. The calibration factor is used as one of the parameters of the second servo loop. In the calibration servo mode, the calibration signal forms the second control signal, and the calibration factor generator generates the calibration factor based on movement of the head before any substantial response of the third servo loop to the calibration portion.
摘要翻译：一个用于相对于硬盘驱动器的磁盘移动磁头的伺服系统。伺服系统包括双级致动器，校准信号发生器和校准因子发生器。校准信号发生器产生具有校准部分的校准信号。校准因子发生器产生校准因子。伺服系统在操作和校准伺服模式下工作。在操作模式下，系统定义了第一和第二伺服回路。校准因子被用作第二伺服回路的参数之一。在校准伺服模式中，校准信号形成第二控制信号，并且校准因子发生器在第三伺服回路的任何实质响应到校准部分的任何实质响应之前基于头的运动产生校准因子。

2. 发明授权

US07035041B1 Displacement resetting systems and methods for the second stage of a hard disk drive dual-stage actuator 失效
标题翻译：位移复位系统和方法用于第二阶段的硬盘驱动器双级执行器
公开(公告)号：US07035041B1
公开(公告)日：2006-04-25
申请号：US10366544
申请日：2003-02-12
申请人： Lin Guo , Xiaoping Hu , Wei Guo
发明人： Lin Guo , Xiaoping Hu , Wei Guo
IPC分类号： G11B5/596
CPC分类号： G11B5/596 , G11B5/5552
摘要： A control system and method for a disk drive comprising first and second actuator arms. The control system comprises first and second stages and a reset system. The first stage displaces the first arm. The second stage displaces the second arm relative to the first arm. The second stage defines a displacement offset when the disk drive begins a seek operation. The reset system discharges at least a portion of the displacement offset over time.
摘要翻译：一种用于盘驱动器的控制系统和方法，包括第一和第二致动臂。控制系统包括第一和第二阶段以及复位系统。第一阶段取代了第一臂。第二级相对于第一臂移动第二臂。第二阶段定义磁盘驱动器开始搜索操作时的位移偏移。复位系统随着时间的推移排出位移偏移的至少一部分。

3. 发明授权

US06867949B1 Vibration-damped push-pin assembly for disk drive servo writing 失效
标题翻译：用于磁盘驱动器伺服写入的振动阻尼推针组件
公开(公告)号：US06867949B1
公开(公告)日：2005-03-15
申请号：US10053934
申请日：2002-01-22
申请人： Lin Guo , David M. Tung , Xiaoping Hu , Wei Guo , William M. Marvin, Jr. , Mark S. Seymour
发明人： Lin Guo , David M. Tung , Xiaoping Hu , Wei Guo , William M. Marvin, Jr. , Mark S. Seymour
IPC分类号： G11B5/55 , G11B5/596
CPC分类号： G11B5/5534 , G11B5/59633
摘要： The present invention is directed to a push-pin assembly for use with a positioning arm of a disk drive servo writer. The push-pin assembly promotes vibrational damping between the push-pin assembly and the actuator arm. Push-pin assemblies of the invention generally include a contact pin having a shaft and a contact head. The push-pin assembly also includes a body having a contact pin receptacle recessed into an end so that at least a portion of the contact pin shaft can be disposed in the receptacle. The contact head is thus disposed beyond the end of the body which includes the contact pin receptacle. The push-pin assembly additionally includes a vibration damper disposed between at least a portion of the contact pin shaft and the body.
摘要翻译：本发明涉及一种与盘驱动伺服写入器的定位臂一起使用的推销组件。推销组件促进推销组件和致动器臂之间的振动阻尼。本发明的推销组件通常包括具有轴和接触头的接触销。推销组件还包括具有凹入到端部中的接触针插座的本体，使得接触针轴的至少一部分可以设置在容座中。因此，接触头设置在包括接触针座的主体的端部之外。推针组件还包括设置在接触销轴的至少一部分与主体之间的振动阻尼器。

4. 发明申请

US20090168232A1 Microactuator reference input limit to prevent internal states over-accumulation 有权
公开(公告)号：US20090168232A1
公开(公告)日：2009-07-02
申请号：US12006329
申请日：2007-12-31
申请人： Wei Guo , Xiaoping Hu
发明人： Wei Guo , Xiaoping Hu
IPC分类号： G11B5/596
CPC分类号： G11B5/5552
摘要： A microactuator reference limit used to prevent over-accumulation of internal states may be set based on the microactuator's mechanical properties and is applied at the reference point to the microactuator servo subsystem. A microactuator variable input limit to prevent over-accumulation of internal states may be dynamically determined based on the difference between a signal corresponding to the maximum physical stroke of the microactuator and an estimated motion of the microactuator. Either configuration of servo system automatically ensures that all the internal states of the microactuator controller will not over-react and cause excessive overshoot, sluggish response, and/or saturation.

5. 发明授权

US07595956B2 Microactuator reference input limit to prevent internal states over-accumulation 有权
标题翻译：微致动器参考输入限制，以防止内部状态过度累积
公开(公告)号：US07595956B2
公开(公告)日：2009-09-29
申请号：US12006329
申请日：2007-12-31
申请人： Wei Guo , Xiaoping Hu
发明人： Wei Guo , Xiaoping Hu
IPC分类号： G11B5/596
CPC分类号： G11B5/5552
摘要： A microactuator reference limit used to prevent over-accumulation of internal states may be set based on the microactuator's mechanical properties and is applied at the reference point to the microactuator servo subsystem. A microactuator variable input limit to prevent over-accumulation of internal states may be dynamically determined based on the difference between a signal corresponding to the maximum physical stroke of the microactuator and an estimated motion of the microactuator. Either configuration of servo system automatically ensures that all the internal states of the microactuator controller will not over-react and cause excessive overshoot, sluggish response, and/or saturation.
摘要翻译：用于防止内部状态过度累积的微致动器参考极限可以基于微致动器的机械特性来设定，并且在参考点处被施加到微致动器伺服子系统。可以基于与微型致动器的最大物理冲程相对应的信号与微型致动器的估计运动之间的差异来动态地确定用于防止内部状态的过度累积的微致动器可变输入限制。伺服系统的任一配置自动确保微致动器控制器的所有内部状态不会过度反应，并引起过大的过冲，缓慢的响应和/或饱和度。

6. 发明授权

US07612968B1 Disk drive microactuator frame with epoxy overflow reservoir 有权
标题翻译：带环氧树脂溢流槽的磁盘驱动微型制动器架
公开(公告)号：US07612968B1
公开(公告)日：2009-11-03
申请号：US11230215
申请日：2005-09-19
申请人： Wei Guo , Lin Guo
发明人： Wei Guo , Lin Guo
IPC分类号： G11B5/56
CPC分类号： G11B5/5552 , E05Y2900/402
摘要： A disk drive slider positioner (180) includes a frame (184) having a pair of arms (216a, 216b) that cantilever from a base (188). A slider (140) is positioned within frame (184). A pair of slots (224a, 224b) extend down through the frame (184) and also extend along part of the corresponding arm (216a, 216b). Each slot (224a, 224b) includes a corresponding first slot section (228a, 228b) and a wider corresponding second slot section (232a, 232b). A material (240) that is more pliable than the frame (184) preferably occupies the entire length of each first slot section (228a, 228b). Excess first material (240) may overflow into the corresponding wider second slot section (232a, 232b), thereby reducing the potential for excess first material (240) occupying any portion of the space between a leading edge (144) of the slider (140) and the frame (188).
摘要翻译：磁盘驱动器滑块定位器（180）包括具有从基座（188）悬臂的一对臂（216a，216b）的框架（184）。滑块（140）位于框架（184）内。一对槽（224a，224b）向下延伸通过框架（184）并且还沿着相应臂（216a，216b）的一部分延伸。每个槽（224a，224b）包括对应的第一槽部分（228a，228b）和较宽的对应的第二槽部分（232a，232b）。比框架（184）更柔软的材料（240）优选地占据每个第一槽部分（228a，228b）的整个长度。过量的第一材料（240）可能溢出到对应的较宽的第二狭槽部分（232a，232b）中，从而减少占据滑块（140）的前缘（144）之间的空间的任何部分的多余的第一材料（240））和框架（188）。

7. 发明授权

US07375911B1 Piezoelectric actuator and sensor for disk drive dual-stage servo systems 有权
标题翻译：用于磁盘驱动双级伺服系统的压电致动器和传感器
公开(公告)号：US07375911B1
公开(公告)日：2008-05-20
申请号：US10996543
申请日：2004-11-24
申请人： Yunfeng Li , Wei Guo , Lin Guo , Yu Sun
发明人： Yunfeng Li , Wei Guo , Lin Guo , Yu Sun
IPC分类号： G11B21/02 , G11B5/596 , G11B17/00 , G11B33/14 , G11B21/24
CPC分类号： G11B19/042 , G11B5/4826 , G11B5/483 , G11B5/5552 , G11B5/5582 , G11B5/596
摘要： A hard disk drive is disclosed comprising at least one disk rotatable about an axis, an actuator assembly moveable relative to the disk, a transducer positioned on the actuator assembly, an actuator signal line, a piezoelectric actuator element disposed on the actuator assembly and electrically interconnected to the actuator signal line, a processor, a sensor signal line and a piezoelectric sensor element for sensing a vibration. The piezoelectric sensor element is collocated with the piezoelectric actuator element and electrically interconnected to the processor by the sensor signal line. The piezoelectric actuator element is operable to move the at least one transducer relative to a surface of the disk. The piezoelectric sensor element is electrically isolated from the piezoelectric actuator element. A method for detecting a vibration in a hard disk drive actuator assembly is also disclosed.
摘要翻译：公开了一种硬盘驱动器，其包括至少一个可围绕轴可旋转的盘，可相对于盘移动的致动器组件，位于致动器组件上的换能器，致动器信号线，设置在致动器组件上的电压互连致动器信号线，用于感测振动的处理器，传感器信号线和压电传感器元件。压电传感器元件与压电致动器元件并置，并通过传感器信号线电连接到处理器。压电致动器元件可操作以相对于盘的表面移动至少一个换能器。压电传感器元件与压电致动器元件电隔离。还公开了一种用于检测硬盘驱动器致动器组件中的振动的方法。

8. 发明授权

US07369345B1 Mobile hard disk drive free fall detection and protection 有权
标题翻译：移动硬盘驱动器自由落体检测和保护
公开(公告)号：US07369345B1
公开(公告)日：2008-05-06
申请号：US11292831
申请日：2005-12-02
申请人： Yunfeng Li , Erhard Schreck , Wei Guo , Tim Glassburn , Mark Heimbaugh , William Flynn , Oliver Northrup , John E. Scura , Lin Guo , Xiaokun Chew
发明人： Yunfeng Li , Erhard Schreck , Wei Guo , Tim Glassburn , Mark Heimbaugh , William Flynn , Oliver Northrup , John E. Scura , Lin Guo , Xiaokun Chew
IPC分类号： G11B5/54 , G11B21/12
CPC分类号： G11B5/5582
摘要： A system provided for protecting a disk drive from impact damages. More specifically, a disk drive is provided that includes an accelerometer interconnected to a printed circuit board that detects free fall of the disk drive. In addition, the velocity of spinning disks of the disk drive is also monitored to assess changes in velocity thereof that may indicate the presence of a tumbling condition. Furthermore, the change in acceleration measured by the accelerometer is monitored to prevent false indications of free fall due to common vibrations. Thus an enhanced system is provided that protects disk drives from the effect of free falls under a wide variety of conditions and allowing for drops from shorter distances to be identified.
摘要翻译：一种用于保护磁盘驱动器免受冲击损坏的系统。更具体地，提供了一种盘驱动器，其包括与检测盘驱动器的自由落下的印刷电路板互连的加速度计。此外，还监视磁盘驱动器的旋转磁盘的速度以评估其速度的变化，其可以指示存在翻滚状况。此外，监测由加速度计测量的加速度变化，以防止由于共同振动引起的自由落体的错误指示。因此，提供了一种增强的系统，其保护磁盘驱动器免受各种条件下的自由落体的影响，并允许识别较短距离的液滴。

9. 发明授权

US06977790B1 Design scheme to increase the gain of strain based sensors in hard disk drive actuators 有权
标题翻译：用于增加硬盘驱动器执行器中基于应变的传感器增益的设计方案
公开(公告)号：US06977790B1
公开(公告)日：2005-12-20
申请号：US10138035
申请日：2002-05-03
申请人： Yih-Jen D. Chen , David M. Tung , Lin Guo , Wei Guo , Bill Wang
发明人： Yih-Jen D. Chen , David M. Tung , Lin Guo , Wei Guo , Bill Wang
IPC分类号： G11B5/48 , G11B5/55 , G11B5/596 , G11B21/02
CPC分类号： G11B5/5582 , G11B5/4833 , G11B5/5569 , Y10T29/49025
摘要： An actuator arm assembly has an actuator arm and an actuator for moving the actuator arm whereby the arm assembly experiences vibrations. The actuator has a body with a recess formed therein, and a strain sensor is fitted essentially inside the recess such that the sensor generates signals correlated to the vibrations. This arrangement produces a high gain boost from the strain based sensor, making an amplifier circuit unnecessary. The sensor signals are used to damp the vibrations.
摘要翻译：致动器臂组件具有致动器臂和用于移动致动器臂的致动器，由此臂组件经受振动。致动器具有形成在其中的凹部的本体，并且应变传感器基本上适配在凹部内部，使得传感器产生与振动相关的信号。这种布置从基于应变的传感器产生高增益增益，使放大器电路不必要。传感器信号用于减震。

10. 发明授权

US08929021B1 Disk drive servo writing from spiral tracks using radial dependent timing feed-forward compensation 有权
标题翻译：使用径向相关定时前馈补偿从螺旋轨道进行磁盘驱动器伺服写入
公开(公告)号：US08929021B1
公开(公告)日：2015-01-06
申请号：US13431680
申请日：2012-03-27
申请人： Jiangang Liang , Wei Guo
发明人： Jiangang Liang , Wei Guo
IPC分类号： G11B5/596 , G11B27/32
CPC分类号： G11B20/14 , G11B20/10222 , G11B27/32
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of spiral tracks, wherein each spiral track comprising a high frequency signal interrupted at a predetermined interval by a sync mark. An offset r0 representing a difference between an axial rotation of the disk and an axial rotation of the spiral tracks is estimated. Radial dependent timing compensation values are generated in response to the estimated r0. A phase error is generated in response to the sync marks in the spiral track crossings. A control signal is generated in response to the phase error and the radial dependent timing compensation values, and a frequency of an oscillator is adjusted in response to the control signal.
摘要翻译：公开了一种磁盘驱动器，包括在包括多个螺旋轨道的盘上致动的磁头，其中每个螺旋轨道包括以预定间隔以同步标记中断的高频信号。估计表示盘的轴向旋转与螺旋轨迹的轴向旋转之间的差异的偏移r0。响应于估计的r0产生径向相关定时补偿值。响应于螺旋轨道交叉中的同步标记产生相位误差。响应于相位误差和与径向相关的定时补偿值产生控制信号，并且响应于控制信号调整振荡器的频率。

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