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METHODS AND TECHNIQUES TO IDENTIFY SUSPICIOUS ACTIVITY BASED ON ULTRASONIC SIGNATURES
METHODS AND TECHNIQUES TO IDENTIFY SUSPICIOUS ACTIVITY BASED ON ULTRASONIC SIGNATURES
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机译:基于超声签名识别可疑活动的方法和技术
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摘要
Various embodiments of an apparatus, methods, systems and computer program products described herein are directed to a Detection Engine that triggers playback of an audio signal at a defined frequency from a speaker module associated with a computing device. The Detection Engine receives a reflected signal captured by a microphone module associated with the computing device. In some embodiments, the reflected signal corresponds to the triggered audio signal. The Detection Engine determines whether there is suspicious activity occurring with respect to the computing device based on at least one characteristic of the reflected signal.
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