Data protection based on system vibration modes
    42.
    发明授权
    Data protection based on system vibration modes 有权
    基于系统振动模式的数据保护

    公开(公告)号:US07760456B2

    公开(公告)日:2010-07-20

    申请号:US11941260

    申请日:2007-11-16

    IPC分类号: G11B19/04

    CPC分类号: G11B19/042

    摘要: An aspect of the present disclosure relates to implementing a data protection mode based on system vibration modes in a data supported system. An exemplary system vibration mode is associated with an operating mode of the data supported system. The data protection mode operates to limit, or prevent, errors caused by the vibration. In one exemplary embodiment, a method is provided for operating a data supported system. The method includes receiving an indication that a vibration associated with an operating mode of the system will occur and, in response, implementing a data protection mode in the system.

    摘要翻译: 本公开的一个方面涉及在数据支持的系统中基于系统振动模式实现数据保护模式。 示例性系统振动模式与数据支持的系统的操作模式相关联。 数据保护模式用于限制或防止振动引起的错误。 在一个示例性实施例中,提供了一种用于操作数据支持的系统的方法。 该方法包括接收与系统的操作模式相关联的振动的发生的指示,并且作为响应,在系统中实现数据保护模式。

    Discontinuous mode back EMF measurement
    44.
    发明授权
    Discontinuous mode back EMF measurement 有权
    不连续模式反电动势测量

    公开(公告)号:US07576939B2

    公开(公告)日:2009-08-18

    申请号:US11940521

    申请日:2007-11-15

    IPC分类号: G11B21/02

    摘要: A terminal voltage of an actuator motor is measured while the actuator motor is in a high impedance state. An internal voltage of the actuator motor is measured, and a back-EMF voltage of the actuator motor is estimated in response to the terminal voltage of the actuator motor and the internal voltage of the actuator motor. A drive current supplied to the actuator motor is controlled in response to the estimated back-EMF.

    摘要翻译: 在执行器电动机处于高阻抗状态的同时测量致动器电动机的端子电压。 测量致动器电动机的内部电压,并且响应于致动器电动机的端子电压和致动器电动机的内部电压来估计致动器电动机的反电动势电压。 响应于估计的反电动势来控制提供给致动器电动机的驱动电流。

    DATA PROTECTION BASED ON SYSTEM VIBRATION MODES
    45.
    发明申请
    DATA PROTECTION BASED ON SYSTEM VIBRATION MODES 有权
    基于系统振动模式的数据保护

    公开(公告)号:US20090128945A1

    公开(公告)日:2009-05-21

    申请号:US11941260

    申请日:2007-11-16

    IPC分类号: G11B19/04

    CPC分类号: G11B19/042

    摘要: An aspect of the present disclosure relates to implementing a data protection mode based on system vibration modes in a data supported system. An exemplary system vibration mode is associated with an operating mode of the data supported system. The data protection mode operates to limit, or prevent, errors caused by the vibration. In one exemplary embodiment, a method is provided for operating a data supported system. The method includes receiving an indication that a vibration associated with an operating mode of the system will occur and, in response, implementing a data protection mode in the system.

    摘要翻译: 本公开的一个方面涉及在数据支持的系统中基于系统振动模式实现数据保护模式。 示例性系统振动模式与数据支持的系统的操作模式相关联。 数据保护模式用于限制或防止振动引起的错误。 在一个示例性实施例中,提供了一种用于操作数据支持的系统的方法。 该方法包括接收与系统的操作模式相关联的振动的发生的指示,并且作为响应,在系统中实现数据保护模式。

    Motor control circuit with adaptive controller path selection for different load conditions
    49.
    发明授权
    Motor control circuit with adaptive controller path selection for different load conditions 有权
    电机控制电路,具有自适应控制器路径选择,适用于不同的负载条件

    公开(公告)号:US06744587B2

    公开(公告)日:2004-06-01

    申请号:US10035081

    申请日:2001-12-21

    IPC分类号: G11B1518

    CPC分类号: G11B19/28

    摘要: A motor control circuit for controlling rotation of a motor includes parallel first and second controller paths (gears). Each path includes a proportional and integral (PI) controller and a digital to analog converter (DAC). The DACs operate over different dynamic ranges (gains). The respective PI controllers have different control parameters to provide a common frequency response. The first controller path is used to output motor control signals to control the application of drive current to the motor. The circuit switches to the second controller path once the first controller path operates within a selected tolerance of a minimum or maximum level of the first dynamic range. The final state of the first PI controller is used to configure the initial state of the second PI controller to eliminate transients. The use of different gears allows the circuit to adaptively accommodate large variations in motor current and spindle motor configurations.

    摘要翻译: 用于控制电动机的旋转的电动机控制电路包括平行的第一和第二控制器路径(齿轮)。 每个路径包括比例和积分(PI)控制器和数模转换器(DAC)。 DAC在不同的动态范围(增益)下运行。 相应的PI控制器具有不同的控制参数以提供共同的频率响应。 第一个控制器路径用于输出电机控制信号,以控制对电机的驱动电流的应用。 一旦第一控制器路径在所选择的第一动态范围的最小或最大水平的公差内运行,则电路切换到第二控制器路径。 第一个PI控制器的最终状态用于配置第二个PI控制器的初始状态,以消除瞬变。 使用不同的齿轮允许电路自适应地适应电机电流和主轴电机配置的大变化。

    Storage device maintenance in a portable device based on a power event
    50.
    发明授权
    Storage device maintenance in a portable device based on a power event 有权
    基于电力事件的便携式设备中的存储设备维护

    公开(公告)号:US08635491B2

    公开(公告)日:2014-01-21

    申请号:US11863955

    申请日:2007-09-28

    IPC分类号: G06F11/00

    CPC分类号: G06F11/30

    摘要: The disclosure is related to monitoring a portable electronic device to detect an occurrence of a power event. A command can be sent to a data storage device to initiate a maintenance procedure on the data storage device. In a particular embodiment, a method includes monitoring a portable electronic device to detect an occurrence of a power event. The method also includes selectively sending a command to a data storage device to initiate a maintenance procedure on the data storage device when the occurrence of the power event is detected.

    摘要翻译: 本公开涉及监视便携式电子设备以检测电力事件的发生。 可以向数据存储设备发送命令以在数据存储设备上启动维护过程。 在特定实施例中,一种方法包括监视便携式电子设备以检测电力事件的发生。 该方法还包括当检测到电力事件的发生时,选择性地向数据存储设备发送命令以发起数据存储设备上的维护过程。