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。

公开(公告)号：US07350394B1

公开(公告)日：2008-04-01

申请号：US11292473

申请日：2005-12-02

申请人： William Flynn ,  Wei Guo ,  Mark Heimbaugh ,  Yunfeng Li

发明人： William Flynn ,  Wei Guo ,  Mark Heimbaugh ,  Yunfeng Li

IPC分类号： G01P21/00

CPC分类号： G01P15/0891 ,  G01P15/18 ,  G01P21/00 ,  G11B19/043

摘要： A method is provided for identifying offsets of accelerometers integrated into hard disk drives. More specifically, often, disk drives employ accelerometers that constantly monitor the acceleration felt by the disk drive. Once the accelerations are less than a predetermined threshold, a free fall event is identified and an actuator arm that is generally positioned above the disk is placed in a safe location prior to impact. Accelerometers must be calibrated prior to use such that their inherent errors are identified and factored into the algorithm that identifies free fall. The method provided herein allows for the 0 g offset to be monitored without having to reorient the device being tested, thus saving time and money.

摘要翻译： 提供了一种用于识别集成到硬盘驱动器中的加速度计的偏移的方法。 更具体地，磁盘驱动器经常使用加速度计，它们不断地监视磁盘驱动器感觉到的加速度。 一旦加速度小于预定阈值，则识别出自由落体事件，并且通常位于盘上方的致动器臂在冲击之前被放置在安全位置。 加速度计必须在使用之前进行校准，以便确定其固有误差并将其分解到识别自由落体的算法中。 本文提供的方法允许监测0g偏移量，而不必重新定向被测试的装置，从而节省时间和金钱。

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。

公开(公告)号：US07126785B1

公开(公告)日：2006-10-24

申请号：US10963665

申请日：2004-10-13

申请人： Yunfeng Li ,  Yu Sun ,  Lin Guo

发明人： Yunfeng Li ,  Yu Sun ,  Lin Guo

IPC分类号： G11B5/596 ,  G11B21/02

CPC分类号： G11B5/5552 ,  G11B5/5547 ,  G11B5/596

摘要： Disk drives, methods, and computer program products are provided for controlling seeking of a transducer that is adjacent to a rotatable data storage disk in a disk drive. The disk drive includes a secondary actuator for positioning the transducer over a second range of movement, and a primary actuator for positioning the secondary actuator over a first range of movement that is larger than the second range of movement. The secondary actuator is controlled to move the transducer toward a target track on the disk while seeking. The primary actuator is controlled to move the secondary actuator toward the target track while simultaneously controlling the secondary actuator to maintain the transducer on the target track.

摘要翻译： 提供了磁盘驱动器，方法和计算机程序产品，用于控制寻找与磁盘驱动器中的可旋转数据存储盘相邻的换能器。 磁盘驱动器包括用于将换能器定位在第二移动范围上的辅助致动器，以及用于将辅助致动器定位在大于第二移动范围的第一移动范围上的主致动器。 控制辅助致动器以在寻找时将传感器移向盘上的目标轨道。 控制主致动器以将次级致动器朝向目标轨道移动，同时控制辅助致动器以将换能器保持在目标轨道上。

公开(公告)号：US07215499B1

公开(公告)日：2007-05-08

申请号：US11180283

申请日：2005-07-13

申请人： Yunfeng Li ,  Yu Sun ,  Lin Guo ,  Xiaoping Hu

发明人： Yunfeng Li ,  Yu Sun ,  Lin Guo ,  Xiaoping Hu

IPC分类号： G11B21/02

CPC分类号： G11B5/5547 ,  G11B5/5552

摘要： A disk drive and method are provided for controlling seeking of a transducer that is adjacent to a rotatable data storage disk in a disk drive. The disk drive includes an actuator for positioning the transducer relative to the disk, the method comprising. The actuator is controlled to move the transducer toward a target track on the disk during an initial phase of a seek mode during which the transducer is primarily accelerated toward the target track. During a settle phase of the seek mode which follows the initial phase the actuator is controlled to settle the transducer onto the target track. An initial position, an initial velocity, and an initial acceleration of the transducer are determined at a phase switch time at about when control of the actuator switches from the initial phase to the settle phase of the seek mode. Feed-forward control information is generated based on the determined initial position, initial velocity, and initial acceleration of the transducer. The actuator is controlled responsive to the feed-forward control information to settle the transducer onto the target track during the settle phase of the seek mode.

摘要翻译： 提供了一种磁盘驱动器和方法，用于控制寻找与磁盘驱动器中的可旋转数据存储盘相邻的换能器。 磁盘驱动器包括用于相对于盘定位换能器的致动器，该方法包括。 在寻像模式的初始阶段期间，致动器被控制以将传感器移向盘上的目标轨道，在该模式期间，换能器主要朝向目标轨道加速。 在跟随初始阶段的搜索模式的稳定阶段期间，致动器被控制以将换能器定位到目标轨道上。 在致动器的控制从寻找模式的初始阶段到稳定阶段切换的时刻，在相位切换时刻确定换能器的初始位置，初始速度和初始加速度。 基于确定的换能器的初始位置，初始速度和初始加速度产生前馈控制信息。 响应于前馈控制信息控制致动器，以在搜索模式的稳定阶段期间将换能器稳定在目标轨道上。

公开(公告)号：US07283321B1

公开(公告)日：2007-10-16

申请号：US11197572

申请日：2005-08-04

申请人： Yu Sun ,  Yunfeng Li ,  Lin Guo ,  Paul Yeagle

发明人： Yu Sun ,  Yunfeng Li ,  Lin Guo ,  Paul Yeagle

IPC分类号： G11B5/596

CPC分类号： G11B5/5552

摘要： A disk drive includes a disk, a head, a coarse actuator, a microactuator, and a servo controller. The microactuator positions the head relative to the disk. The coarse actuator positions the microactuator and the head relative to the disk. The servo controller controls the microactuator in accordance with a microactuator feedforward control signal that is provided by the servo controller based on a plurality of microactuator feedforward values. The servo controller tunes at least one microactuator feedforward value of the plurality of microactuator feedforward values. The servo controller scales the microactuator feedforward control signal in accordance with a microactuator feedforward gain, and the servo controller adjusts the microactuator feedforward gain based on a position error signal that is determined during a seek operation.

摘要翻译： 磁盘驱动器包括盘，头，粗致动器，微致动器和伺服控制器。 微型致动器将磁头相对于磁盘定位。 粗执行器将微致动器和头相对于盘定位。 伺服控制器根据由伺服控制器基于多个微致动器前馈值提供的微致动器前馈控制信号来控制微致动器。 伺服控制器调谐多个微致动器前馈值的至少一个微致动器前馈值。 伺服控制器根据微致动器前馈增益来缩放微致动器前馈控制信号，并且伺服控制器基于在寻道操作期间确定的位置误差信号来调节微致动器前馈增益。

公开(公告)号：US07027253B1

公开(公告)日：2006-04-11

申请号：US11050118

申请日：2005-02-03

申请人： Yu Sun ,  Yunfeng Li ,  Lin Guo

发明人： Yu Sun ,  Yunfeng Li ,  Lin Guo

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/59633 ,  G11B5/5552 ,  G11B5/59666 ,  G11B5/59694

摘要： Compensation for disk mode disturbances during self-writing of servo data is provided in a manner that accounts for differences in orientation between the disk surface from which position information is derived and the disk surface on which servo data is written. Microactuators corresponding to upper surfaces of disks may have a wiring polarity that is out of phase with the wiring polarity of microactuators corresponding to upper surfaces of disks so that disk mode compensation signals supplied to the microactuators produce motion in opposite directions. The servo control system may supply signals to microactuators individually and select the polarities of those signals to account for differences in orientation between the disk surface from which position information is derived and the disk surface on which servo data is written.

摘要翻译： 提供伺服数据自写入期间的磁盘模式干扰的补偿，其方式是考虑到导出位置信息的磁盘表面与写入伺服数据的磁盘表面之间的方向上的差异。 对应于盘的上表面的微致动器可以具有与对应于盘的上表面的微致动器的布线极性相异的布线极性，使得提供给微致动器的盘模补偿信号产生相反方向的运动。 伺服控制系统可以单独向微型致动器提供信号，并选择这些信号的极性，以解决导出位置信息的磁盘表面与写入伺服数据的磁盘表面之间的方向上的差异。

公开(公告)号：US20130203754A1

公开(公告)日：2013-08-08

申请号：US13805967

申请日：2011-06-09

申请人： Rifang Yang ,  Yunfeng Li ,  Yongzhen Li ,  Nan Zhao ,  Liuhong Yun ,  Juanjuan Qin ,  Zhongyao Feng ,  Youzhi Zhang

发明人： Rifang Yang ,  Yunfeng Li ,  Yongzhen Li ,  Nan Zhao ,  Liuhong Yun ,  Juanjuan Qin ,  Zhongyao Feng ,  Youzhi Zhang

IPC分类号： C07D471/04

CPC分类号： C07D471/04

摘要： Disclosed are 2-arylimidazo[1,2-a]pyridine-3-acetamide derivatives represented by formula I, their tautomer, racemate or optical isomer, their pharmaceutically acceptable salt, or their solvates, wherein R1, R2, R3 and R4 are defined as in the specification. Preparation methods of said compounds and use of said compounds in treating and/or preventing central nervous system disease associated with TSPO functional disorder

摘要翻译： 公开了由式I表示的2-芳基咪唑并[1,2-a]吡啶-3-乙酰胺衍生物，其互变异构体，外消旋物或旋光异构体，其药学上可接受的盐或其溶剂合物，其中R1，R2，R3和R4定义 如说明书中所述。 所述化合物的制备方法和所述化合物在治疗和/或预防与TSPO功能障碍相关的中枢神经系统疾病中的用途

公开(公告)号：US08318772B2

公开(公告)日：2012-11-27

申请号：US13001379

申请日：2009-06-23

申请人： Bohua Zhong ,  Youzhi Zhang ,  Yanping Zhang ,  Rui Xue ,  Xinhua He ,  Yunfeng Li ,  Hongxia Chen ,  Nan Zhao ,  Meiying Li

发明人： Bohua Zhong ,  Youzhi Zhang ,  Yanping Zhang ,  Rui Xue ,  Xinhua He ,  Yunfeng Li ,  Hongxia Chen ,  Nan Zhao ,  Meiying Li

IPC分类号： A61K31/4535 ,  A61K31/4025 ,  A61K31/381 ,  A61K31/357 ,  A61K31/36 ,  C07D407/12 ,  C07D409/14 ,  C07D409/12

CPC分类号： C07D407/12 ,  C07D407/14 ,  C07D409/12 ,  C07D409/14

摘要： The present invention relates to a new amine compound or a pharmaceutically acceptable salt thereof, wherein the definitions of X, R1, R2 and n are given in the description, to a pharmaceutical composition containing the compound as active ingredient, and to use of the amine compound or its pharmaceutically acceptable salt for the manufacture of an anti-depressent drug.

摘要翻译： 本发明涉及一种新的胺化合物或其药学上可接受的盐，其中X，R 1，R 2和n的定义在说明书中给出含有该化合物作为活性成分的药物组合物，以及使用该胺 化合物或其药学上可接受的盐，用于制造抗抑郁药物。

公开(公告)号：US08224065B2

公开(公告)日：2012-07-17

申请号：US11971898

申请日：2008-01-09

申请人： Zygmunt Pizlo ,  Yunfeng Li ,  Robert M. Steinman

发明人： Zygmunt Pizlo ,  Yunfeng Li ,  Robert M. Steinman

IPC分类号： G06K9/00

CPC分类号： G06K9/20 ,  G06K2209/40 ,  G06T7/543

摘要： The present disclosure describes a system and method for transforming a two-dimensional image of an object into a three-dimensional representation, or model, that recreates the three-dimensional contour of the object. In one example, three pairs of symmetric points establish an initial relationship between the original image and a virtual image, then additional pairs of symmetric points in the original image are reconstructed. In each pair, a visible point and an occluded point are mapped into 3-space with a single free variable characterizing the mapping for all pairs. A value for the free variable is then selected to maximize compactness of the model, where compactness is defined as a function of the model's volume and its surface area. “Noise” correction derives from enforcing symmetry and selecting best-fitting polyhedra for the model. Alternative embodiments extend this to additional polyhedra, add image segmentation, use perspective, and generalize to asymmetric polyhedra and non-polyhedral objects.

摘要翻译： 本公开描述了一种用于将对象的二维图像变换为重建对象的三维轮廓的三维表示或模型的系统和方法。 在一个示例中，三对对称点建立原始图像和虚拟图像之间的初始关系，然后重建原始图像中的附加对对称点。 在每对中，可视点和闭塞点被映射到具有表征所有对的映射的单个自由变量的3空间中。 然后选择自由变量的值以最大化模型的紧凑性，其中紧凑度被定义为模型体积及其表面积的函数。 “噪声”修正来源于实现对称性，并为模型选择最佳拟合多面体。 替代实施例将其扩展到附加的多面体，添加图像分割，使用透视图，并将其推广到不对称多面体和非多面体对象。