Clip-on gadgets: expanding multi-touch interaction area with unpowered tactile controls

Authors:
Neng-Hao Yu;Sung-Sheng Tsai;I-Chun Hsiao;Dian-Je Tsai;Meng-Han Lee;Mike Y. Chen;Yi-Ping Hung
Affiliations:
National Taiwan University, Taipei, Taiwan Roc;National Taiwan University, Taipei, Taiwan Roc;National Taiwan University, Taipei, Taiwan Roc;National Taiwan University, Taipei, Taiwan Roc;National Taiwan University, Taipei, Taiwan Roc;National Taiwan University, Taipei, Taiwan Roc;National Taiwan University, Taipei, Taiwan Roc
Venue:
Proceedings of the 24th annual ACM symposium on User interface software and technology
Year:
2011

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Abstract

Virtual keyboards and controls, commonly used on mobile multi-touch devices, occlude content of interest and do not provide tactile feedback. Clip-on Gadgets solve these issues by extending the interaction area of multi-touch devices with physical controllers. Clip-on Gadgets use only conductive materials to map user input on the controllers to touch points on the edges of screens; therefore, they are battery-free, lightweight, and low-cost. In addition, they can be used in combination with multi-touch gestures. We present several hardware designs and a software toolkit, which enable users to simply attach Clip-on Gadgets to an edge of a device and start interacting with it.