专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US6104581A Dual coil rotary actuator 有权
标题翻译：双线圈旋转执行器
公开(公告)号：US6104581A
公开(公告)日：2000-08-15
申请号：US167127
申请日：1998-10-05
申请人： Fu-Ying Huang , Wayne Isami Imaino , Jiann-Chang Lo , Roger William Wood
发明人： Fu-Ying Huang , Wayne Isami Imaino , Jiann-Chang Lo , Roger William Wood
IPC分类号： G11B21/02 , G11B5/48 , G11B5/55 , G11B21/08
CPC分类号： G11B5/5521 , G11B5/4806
摘要： An actuator assembly having two coils disposed between the poles of a voice coil motor (VCM) magnet for improved dynamic performance during settling and tracking operations in a disk drive. The two coils in the VCM are connected to separate current sources to allow the current flow in the two coils to have the same sense (clockwise or counterclockwise) or the opposite sense with respect to each other. When the current flows in the two coils have the opposite sense, excitation of the principal in-plane bending mode resonance of the actuator assembly is suppressed allowing the use of an increased servo bandwidth for settling and tracking operations of the disk drive. During seek operations of the disk drive, where maximum torque on the actuator is desirable, the coil currents in the two coils are chosen to have the same sense so that the forces on the actuator from the two coils are additive.
摘要翻译：具有设置在音圈电机（VCM）磁体的极之间的两个线圈的致动器组件，用于在磁盘驱动器中的稳定和跟踪操作期间改善动态性能。 VCM中的两个线圈连接到单独的电流源，以允许两个线圈中的电流具有相同的感测（顺时针或逆时针）或相对于彼此的相反感。当两个线圈中的电流流动具有相反的感觉时，致动器组件的主要的平面内弯曲模式谐振的激励被抑制，从而可以使用增加的伺服带宽来进行磁盘驱动器的稳定和跟踪操作。在磁盘驱动器的寻道操作期间，在执行器上的最大扭矩是期望的，两个线圈中的线圈电流被选择为具有相同的感测，使得来自两个线圈的致动器上的力是相加的。

92. 发明授权

US6100623A Piezoelectric actuator for control and displacement sensing 失效
标题翻译：用于控制和位移检测的压电致动器
公开(公告)号：US6100623A
公开(公告)日：2000-08-08
申请号：US139541
申请日：1998-08-25
申请人： Fu-Ying Huang , Wayne Isami Imaino , Jiann-Chang Lo
发明人： Fu-Ying Huang , Wayne Isami Imaino , Jiann-Chang Lo
IPC分类号： G11B5/55 , H01L41/04 , H02N2/06 , H01L41/08
CPC分类号： G11B5/4873 , H02N2/062 , G11B5/5552
摘要： A system and method for using a piezoelectric (PZT) element to simultaneously actuate and sense a displacement of an arm assembly; e.g., an assembly for reading and writing data in a storage medium. The simultaneous actuating and sensing function of the PZT is achieved by adding a high-frequency excitation to a control signal which actuates the PZT. The control signal and the high-frequency excitation cause deformation of the PZT translating into arm displacement and cause the generation of an electrical response signal by the PZT. A bridge which simulates the reactance/resistance of the PZT receives the response signal and derives from it the displacement of the arm assembly. Suitable compensation techniques for active control of the PZT and for mitigation of mechanical vibrations and other disturbances experienced by the arm assembly may then be implemented based on the displacement.
摘要翻译：一种用于使用压电（PZT）元件来同时致动并感测臂组件的位移的系统和方法; 例如用于在存储介质中读取和写入数据的组件。通过向驱动PZT的控制信号增加高频激励来实现PZT的同时启动和检测功能。控制信号和高频激励导致PZT转变为臂位移的变形，并引起PZT产生电响应信号。模拟PZT的电抗/电阻的桥梁接收响应信号，并从其中得出臂组件的位移。然后可以基于位移来实现用于PZT的主动控制和用于减轻臂组件经历的机械振动和其他干扰的合适的补偿技术。

93. 发明授权

US5905608A Dynamically tuned outer arms for improved rotary actuator performance 失效
标题翻译：动态调整外臂，提高旋转执行器性能
公开(公告)号：US5905608A
公开(公告)日：1999-05-18
申请号：US933697
申请日：1997-09-19
申请人： Gregory Michael Frees , Fu-Ying Huang , Hatem Radwan Radwan
发明人： Gregory Michael Frees , Fu-Ying Huang , Hatem Radwan Radwan
IPC分类号： G11B21/02 , G11B21/21
CPC分类号： G11B5/5521 , G11B5/4813 , G11B5/5582
摘要： An actuator assembly for a magnetic storage system wherein the end arms are dynamically tuned to reduce the modes of vibration on the actuator to improve the performance and stability of the actuator assembly in the magnetic storage system. In one embodiment, the upper and lower outer arms of the actuator assembly are thinned in the same or similar locations. In another embodiment, the upper and lower outer arms of the actuator assembly are notched at high strain energy points to reduce the stiffness of the outer arms. In still another embodiment, the upper and lower outer arms of the actuator assembly are both notched and thinned at the same or similar locations.
摘要翻译：一种用于磁存储系统的致动器组件，其中端臂被动态调节以减少致动器上的振动模式，以改善致动器组件在磁存储系统中的性能和稳定性。在一个实施例中，致动器组件的上外臂和下外臂在相同或相似的位置变薄。在另一个实施例中，致动器组件的上外臂和下外臂在高应变能点处被切口以减小外臂的刚度。在另一个实施例中，致动器组件的上外臂和下外臂在相同或相似的位置处被切口和变薄。

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