Invention Grant
- Patent Title: Adaptive phase delay adjustment for MEMS sensors
- Patent Title (中): MEMS传感器的自适应相位延迟调整
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Application No.: US14137744Application Date: 2013-12-20
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Publication No.: US09575089B1Publication Date: 2017-02-21
- Inventor: Gabriele Cazzaniga , Luciano Prandi , Carlo Caminada , Federico Forte
- Applicant: Maxim Integrated Products, Inc.
- Applicant Address: US CA San Jose
- Assignee: Maxim Integrated Products, Inc.
- Current Assignee: Maxim Integrated Products, Inc.
- Current Assignee Address: US CA San Jose
- Agency: North Weber & Baugh LLP
- Main IPC: G01P21/00
- IPC: G01P21/00

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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