Disc drive actuator parking detector

    公开(公告)号:US20050073769A1

    公开(公告)日:2005-04-07

    申请号:US10679523

    申请日:2003-10-06

    IPC分类号: G11B21/02 G11B21/22

    CPC分类号: G11B21/22

    摘要: A device for detecting an actuator assembly parking error when a disc drive is powered on includes a magnetic latch attached to the actuator assembly and a latch pin assembly electrically connected to a base plate in the disc drive, where the latch pin assembly is positioned to contact the magnetic latch only when the actuator's read/write head is positioned over a parking zone on the disc. A detection module is electrically connected to the magnetic latch and thus is able to detect whether or not the magnetic latch is contacting the latch pin assembly when the disc drive is powered on. A method for detecting an actuator assembly parking error includes powering on the disc drive, determining whether the magnetic latch has electrical contact with the latch pin assembly, and reporting a parking error if the magnetic latch does not have electrical contact with the latch pin assembly.

    Disc drive actuator parking detector
    2.
    发明授权
    Disc drive actuator parking detector 失效
    光盘驱动器执行器停车检测器

    公开(公告)号:US06958880B2

    公开(公告)日:2005-10-25

    申请号:US10679523

    申请日:2003-10-06

    IPC分类号: G11B21/02 G11B21/22

    CPC分类号: G11B21/22

    摘要: A device for detecting an actuator assembly parking error when a disc drive is powered on includes a magnetic latch attached to the actuator assembly and a latch pin assembly electrically connected to a base plate in the disc drive, where the latch pin assembly is positioned to contact the magnetic latch only when the actuator's read/write head is positioned over a parking zone on the disc. A detection module is electrically connected to the magnetic latch and thus is able to detect whether or not the magnetic latch is contacting the latch pin assembly when the disc drive is powered on. A method for detecting an actuator assembly parking error includes powering on the disc drive, determining whether the magnetic latch has electrical contact with the latch pin assembly, and reporting a parking error if the magnetic latch does not have electrical contact with the latch pin assembly.

    摘要翻译: 一种用于在盘驱动器通电时检测致动器组件停车误差的装置包括附接到致动器组件的磁性闩锁和电连接到盘驱动器中的基板的闩锁销组件,其中闩锁销组件定位成接触 只有当执行器的读/写头位于光盘上的停放区域上时,磁锁才能使用。 检测模块电连接到磁性闩锁,因此当磁盘驱动器通电时,能够检测磁性闩锁是否接触闩锁销组件。 用于检测致动器组件停车误差的方法包括对磁盘驱动器供电,确定磁性闩锁是否与闩锁销组件电接触,以及如果磁性闩锁没有与闩锁销组件电接触则报告停车误差。

    Acoustical noise reduction for a data storage device
    5.
    发明授权
    Acoustical noise reduction for a data storage device 失效
    数据存储设备的声学降噪

    公开(公告)号:US07190542B2

    公开(公告)日:2007-03-13

    申请号:US10783818

    申请日:2004-02-20

    摘要: A method, apparatus, and combination for reducing acoustical noise at start-up of a device is disclosed. The method includes the steps of determining an internal temperature of the device, and unlatching an actuator of the device based on the determined internal temperature of the device, by steps for unlatching the actuator of the device. The apparatus includes a thermistor providing a resistance value to a controller that selects an unlatch process based on the resistance value of the thermistor, and an unlatch procedure programmed into the controller executing the selected unlatch process. The device combination includes a base deck supporting an actuator confined by a magnetic latch for periods of inactivity, and unlatched from the magnetic latch for periods of activity by steps for unlatching the actuator.

    摘要翻译: 公开了一种用于在设备启动时降低声学噪声的方法,装置和组合。 该方法包括以下步骤:通过用于解锁设备的致动器的步骤,基于所确定的设备的内部温度来确定设备的内部温度,以及解除设备的致动器。 该装置包括一个热敏电阻,该电阻为控制器提供电阻值,该控制器基于热敏电阻的电阻值选择一个非锁定过程,以及一个编程到执行所选解锁过程的控制器中的解锁程序。 装置组合包括支撑由磁性闩锁限制的执行器的基座,用于不活动的时段,并且通过用于解锁致动器的步骤的活动时段从磁性闩锁解锁。

    Active brake for spindle motor
    8.
    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。

    Acoustical noise reduction for a data storage device
    9.
    发明申请
    Acoustical noise reduction for a data storage device 失效
    数据存储设备的声学降噪

    公开(公告)号:US20050046992A1

    公开(公告)日:2005-03-03

    申请号:US10783818

    申请日:2004-02-20

    摘要: A method, apparatus, and combination for reducing acoustical noise at start-up of a device is disclosed. The method includes the steps of determining an internal temperature of the device, and unlatching an actuator of the device based on the determined internal temperature of the device, by steps for unlatching the actuator of the device. The apparatus includes a thermistor providing a resistance value to a controller that selects an unlatch process based on the resistance value of the thermistor, and an unlatch procedure programmed into the controller executing the selected unlatch process. The device combination includes a base deck supporting an actuator confined by a magnetic latch for periods of inactivity, and unlatched from the magnetic latch for periods of activity by steps for unlatching the actuator.

    摘要翻译: 公开了一种用于在设备启动时降低声学噪声的方法,装置和组合。 该方法包括以下步骤:通过用于解锁设备的致动器的步骤,基于所确定的设备的内部温度来确定设备的内部温度,以及解除设备的致动器。 该装置包括一个热敏电阻,该电阻为控制器提供电阻值,该控制器基于热敏电阻的电阻值选择一个非锁定过程,以及一个编程到执行所选解锁过程的控制器中的解锁程序。 装置组合包括支撑由磁性闩锁限制的执行器的基座,用于不活动的时段,并且通过用于解锁致动器的步骤的活动时段从磁性闩锁解锁。