Acoustic motion determination

This invention uses sound waves from a single device to track an object's movement. It sends out acoustic signals through two different paths, which share either a transmitter or a receiver, or have distinct components. By comparing the timing of the echoes received across these two paths, it can determine how the object is moving.

Why it matters: The processing power required for acoustic signal comparison and motion characterization was more specialized in 2010. Today, general-purpose embedded processors and mobile devices offer the necessary computational capabilities at a fraction of the cost and size.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateAcoustic transducers, signal processing, software logic

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