10 Patents
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- US119827372024Controlling Sensitivity of Presence Detection Using Ultrasonic Signals
AMAZON TECHNOLOGIES, Inc.
0 cites - US119211872024Monitoring Non-stationary Object Distance Using Ultrasonic Signals
Amazon Technologies, Inc.
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- US116145292023Controlling Emission of Ultrasonic Signals for Presence Detection
Amazon Technologies, Inc.
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- US115640362023Presence Detection Using Ultrasonic Signals with Concurrent Audio Playback
Amazon Technologies, Inc.
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