公开(公告)号：US5412809A

公开(公告)日：1995-05-02

申请号：US975503

申请日：1992-11-12

Applicant: Karman Tam ,  Erik Moe ,  Hanan Kupferman

Inventor： Karman Tam ,  Erik Moe ,  Hanan Kupferman

IPC: G11B19/28 ,  G06F1/32 ,  G11B5/55 ,  G11B19/00 ,  G11B19/20 ,  G11B21/02

CPC classification number: G06F1/3221 ,  G11B19/00 ,  G11B19/2009 ,  G11B5/553 ,  Y02B60/1246

Abstract: A disk drive control circuit and method controls electric power consumption in a disk drive so that a computer system such as a laptop computer can conserve power and as a result can dramatically reduce the effective life of batteries employed as a power source of the computer system. The disk drive control circuit and method is effective in reducing a power consumption for very small form factor disk drives. A technique is provided to allow the user to adopt the performance versus power consumption to meet the system requirements. The control circuit and method effectively controls transient currents associated with initiation of mechanical operation such as an actuator for actuating a magnetic head and a spindle motor for rotating a magnetic disk at high speed with optimum starting time. The disk drive control circuit and method includes a micro-controller for controlling a total operational procedure for reducing an electric power consumption programmed by a vendor or instructed by a user in addition to an overall operation of the disk drive. The disk drive control circuit also includes a memory for storing a set of programs for the operation of the disk drive. The memory includes profiles (such as current versus access time table) for the current control. An actuator current control limits the flow of current to the actuator based on instructions from the micro-controller. A spindle motor current control limits the flow of current to the spindle motor based on instructions from the micro-controller.

Abstract translation: 磁盘驱动器控制电路和方法控制磁盘驱动器中的电力消耗，使得诸如膝上型计算机的计算机系统可以节省电力，并且因此可以显着地减少用作计算机系统的电源的电池的有效寿命。 磁盘驱动器控制电路和方法有效地降低了非常小的形状因数磁盘驱动器的功耗。 提供了一种技术来允许用户采用性能与功耗来满足系统要求。 该控制电路和方法有效地控制与起动机械操作相关的瞬态电流，例如用于致动磁头的致动器和用于以最佳启动时间高速旋转磁盘的主轴电机。 磁盘驱动器控制电路和方法包括一个微控制器，用于控制除了盘驱动器的整体操作之外，还可以减少供应商编程的电力消耗或由用户指示的总操作程序。 磁盘驱动器控制电路还包括用于存储用于磁盘驱动器的操作的一组程序的存储器。 内存包括当前控件的配置文件（例如当前访问时间表）。 执行器电流控制基于来自微控制器的指令限制到致动器的电流流动。 主轴电机电流控制根据微控制器的指令限制主轴电机的电流流量。

公开(公告)号：US5369538A

公开(公告)日：1994-11-29

申请号：US975386

申请日：1992-11-12

Applicant: Erik Moe ,  Greg H. Goble ,  Leland R. Krueger

Inventor： Erik Moe ,  Greg H. Goble ,  Leland R. Krueger

IPC: G11B21/02 ,  G11B21/08 ,  G11B21/22 ,  G11B5/54

CPC classification number: G11B21/083

Abstract: An actuator assembly for a disk drive is presented which includes a voice coil motor having a top return plate which is held in place substantially only by the magnetic field of the voice coil motor magnet, and no extra screws or other fasteners are needed. Non-magnetic spacers position the top return plate above the voice coil motor magnet. Consequently, there are no magnetic portions to interfere with the desired return path of the magnetic field. The actuator assembly includes a preloaded crash stop which provides an elastic as well as a dampening resistive force in stopping a positioner arm assembly upon a crash. Additionally, the crash stop is comprised substantially of non-magnetic material so as to avoid interfering with desired magnetic return paths required for the operation of the actuator. Furthermore, the crash stop comprises an integral magnetic latch which holds the positioner arm assembly in a fixed location when the disk drive is not operating. The magnetic latch provides "line contact," rather than "surface contact," between the positioner arm and the magnetic poles of the latch, thus allowing for greater margin of error in positioning and assembling the components of the latch and positioner arm.

Abstract translation: 提出了一种用于磁盘驱动器的致动器组件，其包括具有顶部返回板的音圈电机，其基本上仅由音圈电机磁体的磁场保持在适当位置，并且不需要额外的螺钉或其它紧固件。 非磁性垫片将顶板返回板放在音圈电机磁铁上方。 因此，没有磁性部分干扰磁场的期望返回路径。 致动器组件包括预紧的碰撞停止件，其提供弹性以及在碰撞时使定位器臂组件停止时的阻尼阻力。 此外，碰撞停止件基本上由非磁性材料构成，以便避免干扰致动器操作所需的所需磁回路。 此外，碰撞停止包括一个整体的磁性闩锁，当磁盘驱动器不工作时，它将定位臂组件保持在固定位置。 磁性闩锁在定位器臂和闩锁的磁极之间提供“线接触”而不是“表面接触”，从而允许在定位和组装闩锁和定位器臂的部件时产生更大的误差。

公开(公告)号：US4331966A

公开(公告)日：1982-05-25

申请号：US194384

申请日：1980-10-06

Applicant: Erik Moe

Inventor： Erik Moe

IPC: G11B7/24 ,  G11B7/26 ,  G01D15/34

CPC classification number: G11B7/26

Abstract: An information storage device for recording by means of a radiant energy beam such as a laser in which a disc-shaped base member, one or more regions of recording medium and one or more disc-shaped protective layers (or "windows") are arranged to form a layered structure or sandwich. The innermost portions of the protective layer(s) are fastened to the corresponding portions of the base member and an annular support ring radially spaced from the outermost edge of the base member is fastened to the outer edge of the protective layer(s). A circumferential gap is thereby provided between the annular support and base member to permit expansion and contraction of the base member.

Abstract translation: 一种用于通过诸如激光的辐射能束记录的信息存储装置，其中盘形基底构件，记录介质的一个或多个区域和一个或多个盘形保护层（或“窗口”）被布置 以形成层状结构或三明治。 保护层的最内部紧固到基部件的相应部分，并且与基部构件的最外边缘径向隔开的环形支撑环紧固到保护层的外边缘。 因此，在环形支撑件和基部构件之间设置有周向间隙，以允许基部构件的膨胀和收缩。

公开(公告)号：US5373407A

公开(公告)日：1994-12-13

申请号：US974986

申请日：1992-11-12

Applicant: Joseph J. Stupak, Jr. ,  Gregory H. Chao ,  Erik Moe ,  Keith W. Mayberry

Inventor： Joseph J. Stupak, Jr. ,  Gregory H. Chao ,  Erik Moe ,  Keith W. Mayberry

IPC: G11B19/20 ,  G11B25/04 ,  G11B33/14 ,  G11B17/02

CPC classification number: G11B25/043 ,  G11B33/1446

Abstract: A small form factor disk drive having an extremely thin, high-energy product annular magnet within the spindle motor. The magnet includes twelve alternating poles disposed about the periphery and canted from the top edge to the bottom at a slight skew angle. The high-energy product magnet generates a high starting torque which obviates the use of low viscosity lithium bearing greases. A stator disposed concentrically within the magnet has three continuous coils, each coil wound around three spokes of the stator at 120 degree intervals, for a total of nine stator slots. The rotating spindle, bearings and stationary base are constructed of materials having similar coefficients of thermal expansion to reduce stresses on the bearings during periods of temperature elevation. An annular aluminum disk support sole bonds to a ledge on the spindle hub to facilitate machining and provide material compatibility. The disk drive includes various features for reducing the amount of contamination on the disk surface. A double groove bonding configuration eliminates adhesive runout and ensures a consistent bond strength.

Abstract translation: 一种小型的磁盘驱动器，其在主轴电机内具有非常薄的，高能量的产品环形磁体。 该磁体包括设置在周边周围的十二个交替磁极，并以稍微偏斜的角度从顶部边缘到底部倾斜。 高能产品磁铁产生高起动转矩，避免使用低粘度锂轴承润滑脂。 定子同心地设置在磁体内，具有三个连续的线圈，每个线圈以120度的间隔缠绕在定子的三个辐条上，共有九个定子槽。 旋转主轴，轴承和固定底座由具有相似热膨胀系数的材料构成，以在温度升高期间减少轴承上的应力。 环形铝盘支撑鞋底与主轴毂上的凸缘结合，以便加工并提供材料兼容性。 磁盘驱动器包括用于减少磁盘表面上的污染物的各种特征。 双沟槽接合结构消除了粘合剂跳动并确保了一致的粘结强度。