Pilot Study of the Grip Input Method that Presents Softness Sensation by Electro-Tactile Stimulation at the Edge of the Smartphone

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  • スマートフォン側面部電気刺激インタフェースを用いた柔らかさ感を提示できるグリップ入力手法の検討

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<p>Considering our perpetual engagement with smartphones and the colossal quantities of information we handle, it is crucial that we possess a smartphone input method with a high degree of usability. We devised a grip input method using an electro-tactile stimulation interface on the edges of a smartphone. This method is characterized by two distinctive features: it converts changes in finger contact area into input as opposed to relying on force sensing, and it provides softness sensation as input feedback through the electro-tactile stimulation. We first evaluated the grip input's performance in relation to changes in finger contact area and found it to be exceptionally high. Then, we evaluated the change in perception with and without two types of electro-tactile stimulations and observed that the electro-tactile stimulation resulted in the softness sensation.</p>

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