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May 13, 2016 10:22 am PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/ms321vGM2Ec/magical-ring-turns-your-arm-in.html
Magical ring turns your arm into a track pad
Carnegie Mellon University researchers developed a system that turns your arm into a trackpad. Video demo above. From their scientific paper:
It consists of a ring, which emits a continuous high frequency AC signal, and a sensing wristband with multiple electrodes. Due to the phase delay inherent in a high-frequency AC signal propagating through the body, a phase difference can be observed between pairs of electrodes. SkinTrack measures these phase differences to compute a 2D finger touch coordinate.
SkinTrack: Using the Body as an Electrical Waveguide for Continuous Finger Tracking on the Skin (PDF via Wired)
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/ms321vGM2Ec/magical-ring-turns-your-arm-in.html
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