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World Haptics Conference (2009)
Salt Lake City, UT, USA
Mar. 18, 2009 to Mar. 20, 2009
ISBN: 978-1-4244-3858-7
pp: 285-289
Hanns W. Tappeiner , Robotics Institute, Carnegie Mellon University, Qatar
Roberta L. Klatzky , Department of Psychology, Carnegie Mellon University, Qatar
Bert Unger , Robotics Institute, Carnegie Mellon University, Qatar
Ralph Hollis , Robotics Institute, Carnegie Mellon University, Qatar
In this paper we present a new concept for haptic guidance in multiple dimensions, in the form of asymmetric vibrations. We show that by adding asymmetry, vibrations from a single source can, like continuous forces, provide effective, high-resolution directional haptic cues in multiple dimensions. Unlike feedback via continuous forces, vibrations can be generated in an almost arbitrarily small workspace. After describing the concept in detail, we describe a user study that assesses the effects of such vibrations - applied to subjects' hands - on their ability to distinguish between different directions. The results indicate that asymmetric vibrations can provide accurate directional haptic feedback.

B. Unger, H. W. Tappeiner, R. L. Klatzky and R. Hollis, "Good vibrations: Asymmetric vibrations for directional haptic cues," World Haptics Conference(WHC), Salt Lake City, UT, USA, 2009, pp. 285-289.
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