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Using mid-air haptics for communication

At the symposium of Haptic for Inclusion held at the University of Borås, Sweden, Ultraleap showcased a device that uses ultrasound waves to give a sense of touch on the hand when the user hovers it around 6 inches above of the device. The camera on the top part of the tablet tracks the hand and concentrates waves such that the same feeling is maintained on the palm of the hand during movement. The camera can also detect hand gestures for control. George, the demonstrator, said that it can be used to “draw” specific signs on the palm which can enable online communication for their deaf-blind users. For me, simple shapes where detectable (e.g., a circle) but more complicated ones where a bit harder to understand (e.g., a question mark).

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