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  1. Bits Anthony J. Gabrielson October 5, 2010

  2. Papers • A sign of the times: A composite input device for human-computer interactions • A Survey on the Development of Multi-touch Technology

  3. Composite Input Device • Hand is equipped with sensors and sign language is used for input • Sensors: • 3 axis accelerometers • switches • pressure sensors

  4. Multi-touch Technology • Current Input has limited degrees of freedom • Mouse: 2 DOF • As prices drop new technology needs to be considered • FMTSID: multi-point touch sensor-based device ~1985 • Diamond Touch: multi-user touch- sensitive surface (Mitsubishi Electric Research Laboratories) • Smart Skin: Multi- touch system - higher resolution ratio (Sony) • iPhone: first mobile device with access to multi-touch technology (Apple) • Everywhere Display: Camera & projector; turns a common touch screen into an interactive display • PlayAnywhere: Simple Front Facing Camera • FTIR: Beams of LED reach the surface of the screen from the touch-screen cross-section will reflect • Microsoft Surface: Simple Front Facing Camera

  5. Conclusion • Composite Input Device • Simple Keyboard Replacement • Language Processing Capability • Multi-touch Technology • New ways to interact with computer • Eyes • Multi-Touch