Invention Grant
US09344099B2 Continuous frequency measurement for predictive periodic synchronization 有权
连续频率测量用于预测周期性同步

Continuous frequency measurement for predictive periodic synchronization
Abstract:
Embodiments are described for a method of continuously measuring the ratio of frequencies between the transmit and receive clock domains of a heterochronous system using an array of digital frequency measurement circuits that provide overlapping frequency and detection interval measurements within single counter periods required for a single frequency measurement circuit to complete a frequency measurement. Embodiments may be used in a predictive synchronizer to provide low latency, continuous frequency measurements for system-on-chip (SOC) devices that employ frequency drift or ramping to reduce power consumption and overheating conditions.
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