The UnMousePad: an interpolating multi-touch force-sensing input pad
ACM SIGGRAPH 2009 papers
A reconfigurable ferromagnetic input device
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Mapping information to audio and tactile icons
Proceedings of the 2009 international conference on Multimodal interfaces
Mudpad: fluid haptics for multitouch surfaces
CHI '10 Extended Abstracts on Human Factors in Computing Systems
A masking study of key-click feedback signals on a virtual keyboard
EuroHaptics'12 Proceedings of the 2012 international conference on Haptics: perception, devices, mobility, and communication - Volume Part I
UltraHaptics: multi-point mid-air haptic feedback for touch surfaces
Proceedings of the 26th annual ACM symposium on User interface software and technology
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We present MudPad, a system that is capable of localized active haptic feedback on multitouch surfaces. An array of electromagnets locally actuates a tablet-sized overlay containing magnetorheological (MR) fluid. The reaction time of the fluid is fast enough for realtime feedback ranging from static levels of surface softness to a broad set of dynamically changeable textures. As each area can be addressed individually, the entire visual interface can be enriched with a multi-touch haptic layer that conveys semantic information as the appropriate counterpart to multi-touch input.