Tactile Display for the Visually Impaired Using TeslaTouch

TeslaTouch is a technology that provides tactile sensation to moving fingers on touch screens. Based on TeslaTouch, we have developed applications for the visually impaired to interpret and create 2D tactile information. In this paper, we demonstrate these applications, present observations from the interaction, and discuss TeslaTouch’s potential in supporting communication among visually impaired individuals.

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From Sound to Sight: Using Audio Processing to enable Visible Light Communication

Mobile phones can use their cameras and flashlight Light Emitting Diodes (LEDs) to exchange messages with low complex Visible Light Communication (VLC) networks, but these interfaces impose serious restrictions when used in a VLC network. In this paper we discuss how to extend mobile phones or tablets with a small peripheral device that is battery-free, uses only passive components, and offers VLC capabilities at the required data rate (kilobit per second).

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Continuous Synchronization for LED-to-LED Visible Light Communication Networks

Off-the-shelf Light Emitting Diodes (LEDs) and low-cost microcontrollers provide the foundation for networking using the visible light as communication medium. These networks require fast and stable synchronization and a distributed protocol to handle shared medium access. We present and evaluate a physical layer and a distributed, contention-based medium access control protocol that enables reliable communication over room range distances; both are implemented in software using low-cost commercial off-the-shelf building blocks.

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3D Printed Interactive Speakers

We propose technology for designing and manufacturing interactive 3D printed speakers. With the proposed technology, sound reproduction can easily be integrated into various objects at the design stage and little assembly is required. The speaker can take the shape of anything from an abstract spiral to a rubber duck, opening new opportunities in product design.

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