An input method that is based on bidirectional strokes that are segmented by tactile landmarks. By giving the user tactile feedback about the length of a stroke during input, dependence on visual display is greatly reduced. By concatenating separate strokes into multi-strokes, complex commands may be...http://www.google.fr/patents/US20060092177?utm_source=gb-gplus-shareBrevet US20060092177 - Input method and apparatus using tactile guidance and bi-directional segmented stroke
Input method and apparatus using tactile guidance and bi-directional ...