In this video, we discuss ultrasonic mid-air haptic technology. More specifically, we illustrate how the technology uses focused, and modulated ultrasound to create tactile sensations in mid-air. Then, we introduce the concept of a dynamic tactile pointer (DTP). We also distinguish between a single-stroke, and a multi-stroke DTP. Contrasting these two novel methods of haptic rendering techniques, we illustrate how multi-stroke dynamic tactile pointers are more suitable for rendering tactile shapes in mid-air. For the purpose of the Eurohaptics 2020 demo session, we introduce SQuiz, a shape quiz, where you can try to feel the shapes and identify them at three difficulty levels, rendered in three different ways.

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