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As wearable devices grow and screens shrink, a team of Indian-origin researchers has developed a new sonar technology that allows you to interact with smartwatches by writing or gesturing on any nearby surface — a tabletop, a sheet of paper or even in mid-air. Called FingerIO, it tracks fine-grained finger movements by turning a smartphone or smartwatch into an active ... Read More »
New sonar technology allows smartwatches to respond to mid-air gestures
