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Lateral Modulation of Midair Ultrasound Focus for Intensified Vibrotactile Stimuli

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Haptics: Science, Technology, and Applications (EuroHaptics 2018)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 10894))

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Abstract

In this paper, we propose a new modulation method of midair ultrasound focus named Lateral Modulation (LM), which provides significantly stronger vibrotactile stimuli on the skin surface compared to that provided by conventional Amplitude Modulation (AM) in the realm of midair ultrasound haptics. We experimentally validated the effectiveness of the LM method by showing that it significantly lowered the vibrotactile detection threshold compared with the AM method, for a wide range of modulation frequencies. The method was found to be valid both on the glabrous and hairy skins, and is expected to be applied to whole-body midair haptics. We demonstrate that the LM method relies on the characteristics of human perception of moving stimuli on the skin surface.

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Authors and Affiliations

  1. Graduate School of Information Science and Technology, The University of Tokyo, Tokyo, Japan

    Ryoko Takahashi

  2. Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan

    Keisuke Hasegawa & Hiroyuki Shinoda

Authors
  1. Ryoko Takahashi
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  2. Keisuke Hasegawa
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  3. Hiroyuki Shinoda
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Corresponding author

Correspondence to Ryoko Takahashi .

Editor information

Editors and Affiliations

  1. University of Siena, Siena, Italy

    Domenico Prattichizzo

  2. University of Tokyo, Tokyo, Japan

    Hiroyuki Shinoda

  3. Purdue University, West Lafayette, Indiana, USA

    Hong Z. Tan

  4. Scuola Superiore Sant’Anna, Pisa, Italy

    Emanuele Ruffaldi

  5. Scuola Superiore Sant’Anna, Pisa, Italy

    Antonio Frisoli

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Takahashi, R., Hasegawa, K., Shinoda, H. (2018). Lateral Modulation of Midair Ultrasound Focus for Intensified Vibrotactile Stimuli. In: Prattichizzo, D., Shinoda, H., Tan, H., Ruffaldi, E., Frisoli, A. (eds) Haptics: Science, Technology, and Applications. EuroHaptics 2018. Lecture Notes in Computer Science(), vol 10894. Springer, Cham. https://doi.org/10.1007/978-3-319-93399-3_25

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  • DOI: https://doi.org/10.1007/978-3-319-93399-3_25

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-93398-6

  • Online ISBN: 978-3-319-93399-3

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