Method of and apparatus for controlling noise generated in confined
spaces
    3.
    发明授权
    Method of and apparatus for controlling noise generated in confined spaces 失效
    用于控制在密闭空间中产生的噪声的方法和装置

    公开(公告)号:US5666427A

    公开(公告)日:1997-09-09

    申请号:US564827

    申请日:1995-11-29

    摘要: A method of and an apparatus for controlling noise generated in a confined space, being capable of reducing a radiating sound pressure generated from a main noise source to that of an optimal state. The method includes the steps of measuring the radiating sound pressure generated from the noise source, and generating, from an additional sound source, a radiating sound pressure having the same magnitude as the radiating sound pressure generated from the noise source while having a phase 180.degree.-shifted from that of the noise source's radiating sound pressure so that the radiating sound pressures can offset each other when they are mixed. The apparatus includes an additional sound source installed in the confined space, an intensity converter for collecting and measuring sound pressure signals respectively generated from the noise source and the additional sound source, and a microcomputer for applying, to the additional sound source, a control signal for reducing the noise on the basis of the sound pressure signals measured by the intensity converter.

    摘要翻译: 一种用于控制在密闭空间中产生的噪声的方法和装置,能够将从主噪声源产生的辐射声压降低到最佳状态。 该方法包括以下步骤:测量从噪声源产生的辐射声压,并从附加声源产生具有与噪声源产生的辐射声压相同幅度的辐射声压,同时具有180°的相位 从噪声源的辐射声压变化,使得辐射声压混合时可以相互抵消。 该装置包括安装在受限空间中的附加声源,用于收集和测量从噪声源和附加声源分别产生的声压信号的强度转换器,以及用于向附加声源施加控制信号的微型计算机 用于基于由强度转换器测量的声压信号来降低噪声。

    ACTUATOR LATCH FOR MINIMIZING EFFECT OF NON-OPERATIONAL ROTARY SHOCK IN A LOAD-UNLOAD (LUL) HARD DISK DRIVE
    4.
    发明申请
    ACTUATOR LATCH FOR MINIMIZING EFFECT OF NON-OPERATIONAL ROTARY SHOCK IN A LOAD-UNLOAD (LUL) HARD DISK DRIVE 失效
    用于最小化非操作旋转震动在负载(LUL)硬盘驱动器中的执行器锁定

    公开(公告)号:US20100284113A1

    公开(公告)日:2010-11-11

    申请号:US12436715

    申请日:2009-05-06

    IPC分类号: G11B5/54 G11B21/16

    CPC分类号: G11B21/22

    摘要: This application discloses a Load-UnLoad (LUL) hard disk drive comprising a disk base, a spindle motor mounted on the disk base for rotating at least one disk to create at least one rotating disk surface, and a head stack assembly pivotably coupled to the disk base and configured to engage an actuator latch when the sliders of the head stack assembly are to be parked. The actuator latch includes a latch beam coupled through a latch pivot to the disk base and a boss coupled to the latch beam and configured to limit the stroke of latch motion in the event of a rotary non-operational shock.

    摘要翻译: 该应用公开了一种Load-UnLoad(LUL)硬盘驱动器,其包括盘基座,安装在盘基座上的主轴马达,用于旋转至少一个盘以产生至少一个旋转盘表面;以及头堆叠组件,其可枢转地联接到 盘基座并且构造成当头堆叠组件的滑块停放时接合致动器闩锁。 致动器闩锁包括通过闩锁枢轴连接到盘基座的闩锁梁和联接到闩锁梁的凸台,并且构造成在旋转非操作冲击的情况下限制闩锁运动的行程。

    Circuits for vcm back emf measurement with a bias voltage to control head flying location on disk
    5.
    发明申请
    Circuits for vcm back emf measurement with a bias voltage to control head flying location on disk 失效
    用于vcm反电动势测量的电路,具有偏置电压以控制磁盘上的磁头飞行位置

    公开(公告)号:US20090195901A1

    公开(公告)日:2009-08-06

    申请号:US12012858

    申请日:2008-02-05

    IPC分类号: G11B27/36

    CPC分类号: G11B27/36 G11B2220/2516

    摘要: A hard disk drive with a voice coil motor coupled to a head. The head moves relative to a disk. The voice coil motor receives a biasing voltage and has a back emf voltage. A test circuit is coupled to the voice coil motor to determine the back emf voltage. The back emf voltage can be used to analyze low frequency vibration in the disk drive. The test circuit can be constructed so that the back emf voltage is proportional to a pair of test resistors and/or a pair of test inductors. The biasing voltage allows the back emf voltage to be measured and analyzed while the head is at any location from the ID to the OD of the disk.

    摘要翻译: 具有耦合到头部的音圈电机的硬盘驱动器。 头相对于磁盘移动。 音圈电机接收偏置电压并具有反电动势电压。 测试电路耦合到音圈电机以确定反电动势电压。 后端电动势可用于分析磁盘驱动器中的低频振动。 测试电路可以被构造成使得反电动势电压与一对测试电阻器和/或一对测试电感器成比例。 偏置电压允许在磁头位于磁盘的ID到OD的任何位置时测量和分析反电动势电压。

    EQUALIZATION AND MINIMIZATION OF MULTI-HEAD STACK ASSEMBLY'S MOTION DURING SELF SERVO WRITING AND HDD OPERATION
    6.
    发明申请
    EQUALIZATION AND MINIMIZATION OF MULTI-HEAD STACK ASSEMBLY'S MOTION DURING SELF SERVO WRITING AND HDD OPERATION 失效
    自动伺服写入和HDD操作期间多头堆叠组件运动的均衡和最小化

    公开(公告)号:US20100232068A1

    公开(公告)日:2010-09-16

    申请号:US12402418

    申请日:2009-03-11

    IPC分类号: G11B5/48

    摘要: A disk hard disk drive that includes a spindle motor and an actuator arm coupled to a base plate. A plurality of disks are coupled to the spindle motor and a plurality of heads are coupled to the actuator arm and the disks. The drive also includes a cover attached to the base plate. The cover and base plate enclose a hard disk area that has a horizontal center line. The hard disk area includes a volume of air above the horizontal center line that is equal to a volume of air below the horizontal center line. The air space within the hard disk area is equal and symmetrical in a vertical direction. Such an arrangement reduces track mis-registration when servo is copied from a disk surface to the other surfaces of the disks in the drive.

    摘要翻译: 盘式硬盘驱动器,其包括主轴电机和联接到基板的致动器臂。 多个盘联接到主轴电机,并且多个磁头联接到致动器臂和磁盘。 驱动器还包括附接到基板的盖。 盖板和底板包围一个具有水平中心线的硬盘区域。 硬盘区域包括在水平中心线上方的等于在水平中心线下方的空气体积的空气体积。 硬盘区域内的空气空间在垂直方向上相等和对称。 当伺服从盘表面复制到驱动器中的盘的其它表面时,这种布置减少了轨迹误配准。

    Head stack latch assembly
    7.
    发明授权
    Head stack latch assembly 失效
    头部堆叠闩锁组件

    公开(公告)号:US08305713B2

    公开(公告)日:2012-11-06

    申请号:US12436715

    申请日:2009-05-06

    IPC分类号: G11B5/54

    CPC分类号: G11B21/22

    摘要: This application discloses a Load-UnLoad (LUL) hard disk drive comprising a disk base, a spindle motor mounted on the disk base for rotating at least one disk to create at least one rotating disk surface, and a head stack assembly pivotably coupled to the disk base and configured to engage an actuator latch when the sliders of the head stack assembly are to be parked. The actuator latch includes a latch beam coupled through a latch pivot to the disk base and a boss coupled to the latch beam and configured to limit the stroke of latch motion in the event of a rotary non-operational shock.

    摘要翻译: 该应用公开了一种Load-UnLoad(LUL)硬盘驱动器,其包括盘基座,安装在盘基座上的主轴马达,用于旋转至少一个盘以产生至少一个旋转盘表面;以及头堆叠组件,其可枢转地联接到 盘基座并且构造成当头堆叠组件的滑块停放时接合致动器闩锁。 致动器闩锁包括通过闩锁枢轴连接到盘基座的闩锁梁和联接到闩锁梁的凸台,并且构造成在旋转非操作冲击的情况下限制闩锁运动的行程。

    Arm limiting shock movement
    8.
    发明授权
    Arm limiting shock movement 失效
    手臂限制冲击运动

    公开(公告)号:US08289658B2

    公开(公告)日:2012-10-16

    申请号:US12463335

    申请日:2009-05-08

    IPC分类号: G11B21/08

    CPC分类号: G11B21/22 G11B5/5582

    摘要: This application discloses a hard disk drive comprising a arm limiter mounted on a disk base to limit movement of the actuator arms during a non-operational shock event while parked. The arm limiter and disk base are disclosed in various combinations to limit actuator arm movement during non-operational shocks.

    摘要翻译: 本申请公开了一种硬盘驱动器,其包括安装在盘基座上的臂限制器,以在停放期间的非操作性休克事件期间限制致动器臂的运动。 臂限制器和盘基座以各种组合公开以限制在非操作冲击期间的致动器臂运动。

    Equalization and minimization of multi-head stack assembly's motion during self servo writing and HDD operation
    9.
    发明授权
    Equalization and minimization of multi-head stack assembly's motion during self servo writing and HDD operation 失效
    自动伺服写入和HDD操作期间多头组合件运动的均衡和最小化

    公开(公告)号:US08189287B2

    公开(公告)日:2012-05-29

    申请号:US12402418

    申请日:2009-03-11

    IPC分类号: G11B33/14 G11B5/48

    摘要: A disk hard disk drive that includes a spindle motor and an actuator arm coupled to a base plate. A plurality of disks are coupled to the spindle motor and a plurality of heads are coupled to the actuator arm and the disks. The drive also includes a cover attached to the base plate. The cover and base plate enclose a hard disk area that has a horizontal center line. The hard disk area includes a volume of air above the horizontal center line that is equal to a volume of air below the horizontal center line. The air space within the hard disk area is equal and symmetrical in a vertical direction. Such an arrangement reduces track mis-registration when servo is copied from a disk surface to the other surfaces of the disks in the drive.

    摘要翻译: 盘式硬盘驱动器,其包括主轴电机和联接到基板的致动器臂。 多个盘联接到主轴电机,并且多个磁头联接到致动器臂和磁盘。 驱动器还包括附接到基板的盖。 盖板和底板包围一个具有水平中心线的硬盘区域。 硬盘区域包括在水平中心线上方的等于在水平中心线下方的空气体积的空气体积。 硬盘区域内的空气空间在垂直方向上相等和对称。 当伺服从盘表面复制到驱动器中的盘的其它表面时,这种布置减少了轨迹误配准。

    APPARATUS OF A ARM LIMITER FOR MINIMIZING EFFECT OF NON-OPERATIONAL SHOCK IN A HARD DISK DRIVE
    10.
    发明申请
    APPARATUS OF A ARM LIMITER FOR MINIMIZING EFFECT OF NON-OPERATIONAL SHOCK IN A HARD DISK DRIVE 失效
    用于最小化非操作性震动在硬盘驱动器中的ARM限制器的装置

    公开(公告)号:US20100284110A1

    公开(公告)日:2010-11-11

    申请号:US12463335

    申请日:2009-05-08

    IPC分类号: G11B5/48 G11B21/16

    CPC分类号: G11B21/22 G11B5/5582

    摘要: This application discloses a hard disk drive comprising a arm limiter mounted on a disk base to limit movement of the actuator arms during a non-operational shock event while parked. The arm limiter and disk base are disclosed in various combinations to limit actuator arm movement during non-operational shocks.

    摘要翻译: 本申请公开了一种硬盘驱动器,其包括安装在盘基座上的臂限制器,以在停放期间的非操作性休克事件期间限制致动器臂的运动。 臂限制器和盘基座以各种组合公开以限制在非操作冲击期间的致动器臂运动。