Intelligent speed monitoring auto retract system
    2.
    发明授权
    Intelligent speed monitoring auto retract system 失效
    智能速度监控系统

    公开(公告)号:US06636374B1

    公开(公告)日:2003-10-21

    申请号:US09556887

    申请日:2000-04-19

    IPC分类号: G11B2102

    CPC分类号: G11B5/54 G11B19/20 G11B21/12

    摘要: A system for hardware intelligent speed monitoring and auto-retract is disclosed. The system contains a monitoring device that monitors the TACH (Tachometer) output of motor driver. The device provides a trigger to the signal processor and a retract mechanism to retract the actuator when the spindle motor speed is unexpectedly much higher or lower than normal speed. The system DSP (Digital Signal Processor) is unaware of such occurrence.

    摘要翻译: 公开了一种用于硬件智能速度监测和自动缩回的系统。 该系统包含监控电机驱动器的TACH(转速表)输出的监控装置。 当主轴电机速度意外地高于或低于正常速度时,该装置向信号处理器提供触发器和一个缩回机构以使致动器缩回。 系统DSP(数字信号处理器)不知道这种情况。

    Active brake for spindle motor
    3.
    发明申请
    Active brake for spindle motor 审中-公开
    主轴电机主动制动

    公开(公告)号:US20080048595A1

    公开(公告)日:2008-02-28

    申请号:US11507748

    申请日:2006-08-22

    IPC分类号: H02P3/00

    CPC分类号: G11B19/20 G11B19/04

    摘要: A reverse torque, forward commutation motor driver system for a phased motor rapidly decelerates or “brakes” the motor by exciting, in sequence, a complementary excitation signal in each normal commutation state of the forward state machine, thereby providing an active braking effect. After active braking reduces the rotational velocity of the motor below a threshold, a dynamic braking technique can replace the active braking, wherein high-side drivers are set to an opposite voltage as compared to low-side drivers.

    摘要翻译: 用于相位电动机的反向扭矩正向换向电动机驱动器系统通过在前进状态机的每个正常换向状态中依次激励一个互补的激励信号来快速减速或“制动”电动机,由此提供主动的制动效果。 在主动制动之后,将电动机的转速降低到阈值以下,动态制动技术可以取代主动制动,其中与低侧驱动器相比,高侧驱动器被设置为相反的电压。

    Data storage medium with optimized servo format
    4.
    发明申请
    Data storage medium with optimized servo format 有权
    具有优化伺服格式的数据存储介质

    公开(公告)号:US20070064325A1

    公开(公告)日:2007-03-22

    申请号:US11231960

    申请日:2005-09-21

    IPC分类号: G11B5/09 G11B5/596

    CPC分类号: G11B5/59655

    摘要: A data storage medium and data storage system with improved efficiency of formatting are provided. One illustrative embodiment of the present invention pertains to a data storage medium. The data storage medium includes a first zone having servo information written with a first frequency, a second zone having servo information written with a second frequency, and a guard band disposed between the first zone and the second zone. The use of different frequencies in different zones contributes to optimizing the properties of the data storage medium, and the guard band contributes to optimizing the usage of the different zones.

    摘要翻译: 提供了提供格式化效率的数据存储介质和数据存储系统。 本发明的一个说明性实施例涉及数据存储介质。 数据存储介质包括具有以第一频率写入的伺服信息的第一区,具有以第二频率写入的伺服信息的第二区和设置在第一区和第二区之间的保护带。 在不同区域中使用不同的频率有助于优化数据存储介质的属性,并且保护带有助于优化不同区域的使用。

    System and method for reducing ZAP time and track squeeze in a data storage device
    7.
    发明授权
    System and method for reducing ZAP time and track squeeze in a data storage device 有权
    用于减少ZAP时间并跟踪数据存储设备中的挤压的系统和方法

    公开(公告)号:US07457075B2

    公开(公告)日:2008-11-25

    申请号:US10785628

    申请日:2004-02-24

    IPC分类号: G11B5/596

    CPC分类号: G11B5/59605 G11B19/045

    摘要: A method and apparatus for compensating for errors in servo systems. An improved zero acceleration path (ZAP) correction technique is provided, wherein selected tracks of a data storage device are used for ZAP processing in order to reduce the overall time required to perform error compensation for a storage device. For a given selected track to be ZAPed, track profiles of adjoining tracks are used in addition to the track profile of the selected track as part of the ZAP correction determination for the selected track. Using adjacent track profiles as part of the ZAP correction determination assists in mitigating AC track squeeze issues that would otherwise occur when performing selective track ZAPing.

    摘要翻译: 一种补偿伺服系统误差的方法和装置。 提供了一种改进的零加速路径(ZAP)校正技术,其中数据存储设备的选定轨道用于ZAP处理,以便减少对存储设备进行错误补偿所需的总体时间。 对于给定的所选轨道要ZAPed,除了所选轨道的轨道轮廓之外,还使用相邻轨道的轨道轮廓,作为所选轨道的ZAP校正确定的一部分。 使用相邻轨道配置文件作为ZAP校正确定的一部分有助于减轻执行选择性跟踪ZAPing时会发生的AC轨道挤压问题。

    Shock sensor mounting apparatus and method for disc drives
    10.
    发明申请
    Shock sensor mounting apparatus and method for disc drives 失效
    传感器安装装置及其驱动方法

    公开(公告)号:US20060198045A1

    公开(公告)日:2006-09-07

    申请号:US11073952

    申请日:2005-03-07

    IPC分类号: G11B17/00

    摘要: An apparatus and method for mounting a shock sensor to the printed circuit board (PCB) of a disc drive are provided. In particular, the present invention allows the shock sensor to be mounted at any location on the printed circuit board rather than being limited to placement adjacent a mounting screw. The present invention includes a clamping mechanism for rigidly clamping the PCB to the head disc assembly (HDA) so that any shock is properly transmitted from the HDA to the PCB and then to the shock sensor. In one exemplary embodiment, the PCB is clamped between a shield and the HDA. The shock sensor is then position near the point at which the PCB is clamped so that the point of clamping provides transmission of any shock in the Z-axis to the shock sensor. Shocks in the X-Y axis direction are transmitted via the normal mounting screws.

    摘要翻译: 提供了一种用于将冲击传感器安装到盘驱动器的印刷电路板(PCB)的装置和方法。 特别地,本发明允许将冲击传感器安装在印刷电路板上的任何位置,而不是限于邻近安装螺钉放置。 本发明包括用于将PCB刚性地夹紧到头盘组件(HDA)的夹紧机构,使得任何冲击从HDA适当地传递到PCB,然后到达冲击传感器。 在一个示例性实施例中,PCB夹在屏蔽件和HDA之间。 然后,冲击传感器位于靠近PCB夹紧点的位置,因此夹紧点可将Z轴上的任何冲击传递给震动传感器。 X-Y轴方向的冲击通过普通的安装螺丝传递。