公开(公告)号：US20070091507A1

公开(公告)日：2007-04-26

申请号：US11258968

申请日：2005-10-26

申请人： Pow-Hing Yong ,  CheeFong Oh ,  Samual Gan ,  LiHong Zhang ,  MuiChong Chai

发明人： Pow-Hing Yong ,  CheeFong Oh ,  Samual Gan ,  LiHong Zhang ,  MuiChong Chai

IPC分类号： G11B5/54

CPC分类号： G11B5/54

摘要： A disc drive utilizes ramp load unload technology. A ramp component of the disc drive includes a recess that reduces the contact surface area of the ramp component that supports an actuator assembly to unload a slider of the disc drive. The actuator assembly may include a lift tab that interacts with the ramp component to hold the slider off a media disc when the slider is unloaded.

摘要翻译： 磁盘驱动器采用斜坡卸载技术。 盘驱动器的斜坡部件包括凹部，其减小了支撑致动器组件的斜坡部件的接触表面面积，以卸载盘驱动器的滑块。 致动器组件可以包括提升接头，当升降滑块被卸载时，提升接头与斜面部件相互作用以将滑块保持在介质盘上。

公开(公告)号：US06822821B2

公开(公告)日：2004-11-23

申请号：US09957527

申请日：2001-09-20

申请人： Samuel SweeChuan Gan ,  MuiChong Chai ,  Terang KongBeng Thia ,  Djohni Chandra ,  Sanh Tran

发明人： Samuel SweeChuan Gan ,  MuiChong Chai ,  Terang KongBeng Thia ,  Djohni Chandra ,  Sanh Tran

IPC分类号： G11B2102

CPC分类号： G11B19/04 ,  G11B5/40 ,  G11B5/4873 ,  G11B5/6076 ,  G11B21/21

摘要： A head crash in a hard disc drive is predicted by periodically measuring a head-disc contact energy level on an actuator arm supporting the head and identifying a predetermined change in the energy level between at least two energy level measurements. The head-disc contact energy level is measured by a positioning microactuator on the actuator arm, and comparing that energy level to a threshold established during an earlier or selected contact start-stop cycle. A circuit is coupled to the microactuator and is periodically operable to identify a magnitude of contact energy. An indicator is coupled to the circuit and responsive to the representations to indicate presence of symptoms of an impending crash.

摘要翻译： 通过周期性地测量支撑头部的致动器臂上的头盘接触能量水平并且识别在至少两个能级测量之间的能级的预定变化来预测硬盘驱动器中的头部碰撞。 头盘接触能量水平由致动器臂上的定位微致动器测量，并将该能量水平与在较早或选择的接触开始 - 停止周期期间建立的阈值进行比较。 电路耦合到微致动器并且周期性地可操作以识别接触能量的大小。 指示器耦合到电路并响应于表示来指示即将发生的崩溃的症状的存在。

公开(公告)号：US20080151434A1

公开(公告)日：2008-06-26

申请号：US11644042

申请日：2006-12-22

申请人： Marsha A. Huha ,  Muichong Chai

发明人： Marsha A. Huha ,  Muichong Chai

IPC分类号： G11B5/54

CPC分类号： G11B5/4833 ,  G11B21/22

摘要： A transducing system includes a support assembly for supporting a transducer and a lift tab extending from the support assembly. The lift tab has a surface configured to lift the support assembly carrying the transducer up a load/unload ramp. The surface of the lift tab has a radius of curvature of less than 0.013 inches.

摘要翻译： 传感系统包括用于支撑换能器的支撑组件和从支撑组件延伸的升降片。 提升接头具有被配置为将承载传感器的支撑组件提升到装载/卸载斜坡的表面。 升降片的表面具有小于0.013英寸的曲率半径。

公开(公告)号：US06937427B2

公开(公告)日：2005-08-30

申请号：US10465713

申请日：2003-06-19

申请人： LeeLing Tan ,  Xiong Liu ,  ChoonKit Lim ,  MuiChong Chai

发明人： LeeLing Tan ,  Xiong Liu ,  ChoonKit Lim ,  MuiChong Chai

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B21/02

CPC分类号： G11B5/5521

摘要： An apparatus and method of measuring a back electromotive force (BEMF) voltage of a disc drive voice coil motor (VCM) is provided in which a temperature of the VCM is obtained. The BEMF voltage of the VCM is computed as a function of the temperature of the VCM.

摘要翻译： 提供一种测量盘驱动音圈马达（VCM）的反电动势（BEMF）电压的装置和方法，其中获得VCM的温度。 VCM的BEMF电压作为VCM的温度的函数计算。