公开(公告)号：US20050071693A1

公开(公告)日：2005-03-31

申请号：US10672161

申请日：2003-09-26

申请人： Christopher Chun ,  Wayne Ballantyne ,  Gordon Lee ,  Scott Tassi ,  Darren Weninger

发明人： Christopher Chun ,  Wayne Ballantyne ,  Gordon Lee ,  Scott Tassi ,  Darren Weninger

IPC分类号： G06F1/26 ,  G06F1/32

CPC分类号： G06F1/3237 ,  G06F1/3203 ,  G06F1/3287 ,  G06F1/3296 ,  Y02D10/128 ,  Y02D10/171 ,  Y02D10/172 ,  Y02D50/20

摘要： Supply voltages within a data processing system may be controlled by a voltage control module which can provide digital signals to a power management unit to cause changes in supply voltages without software intervention. For example, in one embodiment, a voltage control signal and a standby signal may be provided to control the supply voltages output by a voltage regulator within the power management unit. In one embodiment having multiple processors, a voltage control signal and a standby signal corresponding to each processor may be provided to the power management unit which has a voltage regulator supplying an independently controlled supply voltage to each processor. Alternatively, a voltage regulator, a voltage control signal, and a standby signal may be shared by multiple processors, where the voltage control module may ensure that the supply voltage is changed only when the change is appropriate for all processors sharing the same voltage regulator.

摘要翻译： 数据处理系统内的电源电压可以由电压控制模块来控制，电压控制模块可以向电源管理单元提供数字信号，从而在没有软件干预的情况下引起电源电压的变化。 例如，在一个实施例中，可以提供电压控制信号和待机信号以控制由电力管理单元内的电压调节器输出的电源电压。 在具有多个处理器的一个实施例中，可以向功率管理单元提供对应于每个处理器的电压控制信号和待机信号，该电源管理单元具有向每个处理器提供独立控制的电源电压的电压调节器。 或者，电压调节器，电压控制信号和备用信号可以由多个处理器共享，其中电压控制模块可以确保仅当变化适用于共享相同电压调节器的所有处理器时才改变电源电压。

公开(公告)号：US20060045215A1

公开(公告)日：2006-03-02

申请号：US10930978

申请日：2004-08-31

申请人： Wayne Ballantyne ,  Roger Hathaway ,  Silvio Luiz Nogueira ,  David Minasi ,  Carlos Miranda-Knapp ,  Darren Weninger

发明人： Wayne Ballantyne ,  Roger Hathaway ,  Silvio Luiz Nogueira ,  David Minasi ,  Carlos Miranda-Knapp ,  Darren Weninger

IPC分类号： H04L27/06

CPC分类号： H03L7/08 ,  G04G3/00 ,  G04G3/022

摘要： A method and apparatus to correct a periodic signal, such as a frequency reference, based upon another frequency reference. A lower accuracy frequency signal generator (104) provides an uncorrected frequency reference signal (122) to a frequency corrector (106). Frequency corrector (106) counts cycles of a frequency reference signal (124), as generated by a higher accuracy reference generator (102) for a time period derived from the uncorrected frequency signal. Based upon the cycles counted, pulses are added or removed from the uncorrected frequency signal (122) to produce a corrected frequency signal (126). A ratio of pulses to be removed from the uncorrected frequency signal (122) is determined from the number of cycles counted and a counter arrangement is provided to automatically remove the required ratio of pulses from the uncorrected frequency signal (122).

摘要翻译： 一种基于另一个频率参考来校正诸如频率参考的周期性信号的方法和装置。 较低精度频率信号发生器（104）向频率校正器（106）提供未校正的频率参考信号（122）。 频率校正器（106）对由未校正的频率信号导出的时间段由较高精度参考发生器（102）产生的频率参考信号（124）的周期进行计数。 基于计数的周期，从未校正的频率信号（122）中添加或去除脉冲以产生校正的频率信号（126）。 从未校正的频率信号（122）中去除的脉冲的比率是从计数的周期数来确定的，并且提供了一个计数器装置以自动地从所述未校正的频率信号（122）中去除所需的脉冲比。