System for a transducer system with wakeup detection
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United States of America Patent
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May 29, 2018
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N/A
app pub date -
Jul 29, 2016
filing date -
Mar 10, 2014
priority date (Note) -
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Abstract
According to embodiments described herein, a circuit includes an interface circuit configured to be coupled to a transducer and a detection circuit. The interface circuit is configured to provide a digital output signal to a signal input terminal of a processing circuit. The detection circuit is configured to receive the digital output signal and provide a low power enable signal to a low power enable terminal of the processing circuit. In the various embodiments, the digital output signal is based on a transduced signal from the transducer and the low power enable signal is determined by comparing the digital output signal with a first threshold.
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