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公开(公告)号：US08631198B2
公开(公告)日：2014-01-14
申请号：US12852153
申请日：2010-08-06
申请人： Choon Wei Ng , Chee Meng Leong , Poh Guat Bay , June Christian Ang , Kian Keong Ooi , Wei Kin Wan
发明人： Choon Wei Ng , Chee Meng Leong , Poh Guat Bay , June Christian Ang , Kian Keong Ooi , Wei Kin Wan
IPC分类号： G06F12/00
CPC分类号： G06F12/0893
摘要： An interface controller of a storage device configured to manage a write cache of the storage device responsive to changes in a voltage supply provided to the storage device. In one implementation, the interface controller reduces the size of the write cache responsive to the voltage supply dropping at or below a first threshold. The interface controller further disables write permissions to the write cache responsive the voltage supply dropping at or below a second threshold, wherein the second threshold is lower in magnitude that the first threshold. The interface controller periodically receives the voltage supply responsive to transmitting sequential requests to a servo firmware of the storage device.
摘要翻译： 一种存储设备的接口控制器，被配置为响应于提供给存储设备的电压供应的变化来管理存储设备的写入高速缓存。 在一个实现中，接口控制器响应于等于或低于第一阈值的电压供应来减小写高速缓存的大小。 接口控制器进一步禁用对写入高速缓存的写入权限，响应于等于或低于第二阈值的电压供应，其中第二阈值的幅度低于第一阈值。 接口控制器响应于向存储设备的伺服固件发送顺序请求而周期性地接收电压供应。
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2.发明授权Using a mechanical stop for determining an operating parameter of a data handling device 失效使用机械停止来确定数据处理装置的操作参数公开(公告)号：US07397623B2
公开(公告)日：2008-07-08
申请号：US10685150
申请日：2003-10-14
CPC分类号： G11B5/59633 , G11B21/12
摘要： Several readings of an actuator's location are taken with a given head while urging the actuator against a mechanical stop, which acts as a guide. These readings are useful, for example, for estimating certain offsets or for determining a nominal track range for a data surface.
摘要翻译： 执行器的位置的几个读数是用给定的头部进行的，同时将致动器推向机械止动件，该机械止动件用作引导件。 这些读数例如用于估计某些偏移量或用于确定数据表面的标称磁道范围是有用的。
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公开(公告)号：US07170249B2
公开(公告)日：2007-01-30
申请号：US11312052
申请日：2005-12-20
摘要： A method and apparatus for compensating for the asymmetrical phases of a spindle motor in a disc drive are provided. With the apparatus and method, compensation values are learned by sampling speed data during a period of operation of the disc drive where the speed is stable and only one control operation is performed per revolution of the disc. The sampled speed data is used to generate the compensation values for each of the phases of the spindle motor. The compensation values are stored in a compensation mechanism which is used by the spindle motor speed controller to provide compensation for the asymmetrical phases of the spindle motor. During Normal operation, the actual speed output of the spindle motor is measured and is subtracted from a reference speed to generate a difference speed value. Based on the corresponding electrical phase, the correct compensation value is fetched and is subtracted from the difference speed value to obtain a compensated difference speed value. A control signal based on this compensated difference speed value is generated and provided to the spindle motor to thereby control the output speed of the spindle motor.
摘要翻译： 提供了用于补偿磁盘驱动器中的主轴电动机的非对称相位的方法和装置。 利用该装置和方法，在速度稳定的盘驱动器的操作周期期间通过采样速度数据来学习补偿值，并且每一周只执行一次控制操作。 采样速度数据用于产生主轴电机各相的补偿值。 补偿值存储在主轴电机转速控制器使用的补偿机构中，为主轴电机的非对称相提供补偿。 在正常运行期间，主轴电机的实际速度输出被测量，并从参考速度中减去以产生差速值。 基于对应的电相，取出正确的补偿值，并从差速值中减去以获得补偿差速值。 产生基于该补偿差速值的控制信号，并提供给主轴电动机，从而控制主轴电动机的输出速度。
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公开(公告)号：US20120036328A1
公开(公告)日：2012-02-09
申请号：US12852153
申请日：2010-08-06
申请人： Poh Guat Bay , Chee Meng Leong , Choon Wei Ng , June Christian Ang , Kian Keong Ooi , Wei Kin Wan
发明人： Poh Guat Bay , Chee Meng Leong , Choon Wei Ng , June Christian Ang , Kian Keong Ooi , Wei Kin Wan
IPC分类号： G06F12/08
CPC分类号： G06F12/0893
摘要： An interface controller of a storage device configured to manage a write cache of the storage device responsive to changes in a voltage supply provided to the storage device. In one implementation, the interface controller reduces the size of the write cache responsive to the voltage supply dropping at or below a first threshold. The interface controller further disables write permissions to the write cache responsive the voltage supply dropping at or below a second threshold, wherein the second threshold is lower in magnitude that the first threshold. The interface controller periodically receives the voltage supply responsive to transmitting sequential requests to a servo firmware of the storage device.
摘要翻译： 一种存储设备的接口控制器，被配置为响应于提供给存储设备的电压供应的变化来管理存储设备的写入高速缓存。 在一个实现中，接口控制器响应于等于或低于第一阈值的电压供应来减小写高速缓存的大小。 接口控制器进一步禁用对写入高速缓存的写入权限，响应于等于或低于第二阈值的电压供应，其中第二阈值的幅度低于第一阈值。 接口控制器响应于向存储设备的伺服固件发送顺序请求而周期性地接收电压供应。
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