Invention Grant
US09575089B1 Adaptive phase delay adjustment for MEMS sensors 有权
MEMS传感器的自适应相位延迟调整

Adaptive phase delay adjustment for MEMS sensors
Abstract:
Various embodiments of the invention allow to cancel demodulation phase error. In certain embodiments, cancellation is accomplished by determining the phase delay of a drive front end signal that is in phase with an undesired signal and digitally adjusting the demodulation signal with a calibrated signal. The phase delay may be adaptively compensated during regular circuit operation, only at predetermined times, or during a factory calibration.
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