Intelligent power management of disc drives
    3.
    发明授权
    Intelligent power management of disc drives 有权
    磁盘驱动器的智能电源管理

    公开(公告)号:US06608729B1

    公开(公告)日:2003-08-19

    申请号:US09645107

    申请日:2000-08-23

    IPC分类号: G11B1902

    CPC分类号: G11B19/00 G11B19/06 G11B19/20

    摘要: Herein is disclosed a method and apparatus for controlling power consumption of a disc drive in a portable computer based upon statistical characteristics of recent user disc access. This is accomplished by a disc drive that initially instantiates a set of thresholds, each of which govern transition into a corresponding power consumption mode. Next, the disc drive measures, at intervals, the time span since the disc drive was last issued a command. Prior to receipt of a new command by the disc drive, the disc drive is progressively transitioned into lower power consumption modes as the measured time span since the last command was issued meets each successive threshold. Following receipt of a new command by the disc drive, the threshold governing transition in to the next lower power consumption mode is adjusted based upon the measured time span.

    摘要翻译: 这里公开了一种用于基于最近用户光盘访问的统计特性来控制便携式计算机中的盘驱动器的功耗的方法和装置。 这是通过最初实例化一组阈值的磁盘驱动器实现的,每个阈值控制转换到相应的功耗模式。 接下来,磁盘驱动器间隔地测量自从最后发出磁盘驱动器命令的时间间隔。 在由磁盘驱动器接收到新的命令之前,随着从上次命令发出满足每个连续阈值的测量时间跨度,磁盘驱动器逐渐转变为较低功耗模式。 在由盘驱动器接收到新命令之后,基于所测量的时间间隔来调整进入下一个较低功耗模式的阈值控制。