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An electrotactile display is a tactile interface that provides tactile perception by passing electrical current through the surface of the skin. It is actively used instead of mechanical tactile displays for tactile feedback because of several advantages such as its small and thin size, light weight, and high responsiveness. However, the similarities and(More)
In most common methods of tactile presentation on touch screen, the tactile display was directly attached or contacted onto the screens. Therefore, the tactile display must be transparent so that it does not obstruct the view of the screen. On the other hand, if the tactile sensation is presented at the back of the device, the tactile display does not need(More)
In our previous study, we found that a normal DC motor can be used for vibro-tactile and pseudo-force presentation. In the present study, we developed a new vibration actuator using a DC motor that can generate much stronger vibrations than a normal DC motor and produce very low frequency of vibrations. We proposed that the stator of the motor could be used(More)
It is known that our touch sensation is a result of activities of four types of mechanoreceptors, each of which responds to different types of skin deformation; pressure, low frequency vibration, high frequency vibration, and shear stretch. If we could selectively activate these receptors, we could combine and present any types of tactile sensation. This(More)
This paper describes a novel music entertainment system that draws on auditory, tactile and visual senses. HapTONE presents players with high-fidelity vibrotactile sensations, not only after pressing the keyboard but also during the pressing operation itself. We developed keyboard type instrument that composed of key unit which is structured a vibrator and(More)
Radio Direction Finding (DF) is a technique that identifies the bearing angle or the coordinates of an incoming radio signal(s). The primary function of DF is to get the Direction of Arrival (DOA) information. In this paper, we propose the robust system architecture for DOA estimation using the Total Forward-Backward Matrix Pencil Method (TFBMP). This(More)