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Vol. 53 (2017) No. 1 p. 31-40




This paper describes the properties of proprioceptive sensations induced by an asymmetric vibration using a vibration speaker-type non-grounded haptic interface. We confirm that the vibration speaker generates a perceived force that pulls or pushes a user's hand in a particular direction when an asymmetric amplitude sound signal that is generated by inverting a part of a sine wave is input. We conducted 5 psychophysical experiments and evaluated the subjects' physical properties in order to apply this phenomenon for a variety of applications. As a result, we confirmed that the vibration speaker was able to control both the direction and magnitude of the reaction force by changing the input signal.

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