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发明授权
US08513995B2 System including circuitry providing multiple circuit paths for controlling a characteristic of a period signal 有权
系统包括提供用于控制周期信号的特性的多个电路路径的电路

System including circuitry providing multiple circuit paths for controlling a characteristic of a period signal
摘要：
System and method providing multiple circuit paths to control characteristics of periodic signals. In one embodiment first and second detector signals are indicative of a phase and frequency differences between the output signal and a reference signal. A first input signal based on the first detector signal adjusts the phase difference. A first control signal based on the second detector signal has frequency content in high and low frequency ranges. A second input signal based on the control signal reduces the frequency difference. A second control signal based on the second detector signal has relatively low frequency content in the high frequency range. A third input signal based on the second control signal reduces the frequency difference.
摘要（中）：

提供多个电路路径以控制周期信号特性的系统和方法。 在一个实施例中，第一和第二检测器信号表示输出信号和参考信号之间的相位和频率差。 基于第一检测器信号的第一输入信号调节相位差。 基于第二检测器信号的第一控制信号具有高频和低频范围内的频率含量。 基于控制信号的第二输入信号降低了频率差。 基于第二检测器信号的第二控制信号在高频范围内具有相对低的频率含量。 基于第二控制信号的第三输入信号降低了频率差。

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