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    • 4. 发明授权
    • Dynamic frequency and voltage scaling for a computer processor
    • 计算机处理器的动态频率和电压缩放
    • US08127160B2
    • 2012-02-28
    • US12250263
    • 2008-10-13
    • Andreas BieswangerAndrew GeisslerHye-Young McCrearyFreeman L. RawsonMalcolm S. Ware
    • Andreas BieswangerAndrew GeisslerHye-Young McCrearyFreeman L. RawsonMalcolm S. Ware
    • G06F1/32
    • G06F1/3203G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • Dynamic frequency and voltage scaling for a computer processor, including retrieving information specifying a nominal operating point of frequency and voltage and an operating range of frequency and voltage for the processor; creating, by the power management module dynamically at run time in dependence upon the retrieved information, a table of frequency, voltage pairs, each pair specifying an operating point of frequency and voltage for the processor, each pair disposed upon a line drawn in frequency-voltage space through the nominal operating point between the minimum operating point and the maximum operating point, the distance between each pair defined in dependence upon a minimum change in power supply voltage supported by the power supply; and selecting and applying, by the power management module from the table, an operating voltage and frequency for the processor in dependence upon current operating conditions of the processor.
    • 用于计算机处理器的动态频率和电压缩放,包括检索指定频率和电压的标称工作点的信息以及处理器的频率和电压的操作范围; 通过电源管理模块在运行时根据检索到的信息动态地创建频率表,电压对,每对指定处理器的频率和电压的工作点的每一对,每对设置在以频率为单位绘制的线上, 通过最小工作点和最大工作点之间的标称工作点的电压空间,每对之间的距离根据电源支持的电源电压的最小变化而定义; 以及根据所述处理器的当前操作条件,由所述电源管理模块从所述表中选择和应用所述处理器的工作电压和频率。