BeaTactile: A Tactile Display for Low-Frequency Spatial Surfaces using Wave Interferences

Abstract

There are many new opportunities for integrating tactile input from wearable devices with feedback from a location-based, tablet, or smartphone device. In this study, we present BeaTactile display which has methods for synergistically integrating vibrotactile feedback supplied via a wearable device on the finger with feedback from a touch screen device. BeaTactile display supplies vibrotactile feedback at different single frequencies via actuators in a wearable device and touch screen device. It can elicit sensations of difference, or beat frequencies. This can arise due to interference between vibration-elicited waves in the finger due to vibration sources in a wearable and touch-screen device. This effect can be reproduced with low-cost resonant vibration actuators, such as linear resonant actuators, that are integrated into many consumer devices.

• Anzu Kawazoe, Taku Hachisu, Yon Visell, BeaTactile: A Tactile Display for Low-Frequency Spatial Surfaces using Wave Interferences, Haptic Symposium 2020.