The user interface is provided for the visually impaired to operate a multifunction devices. The user interface is based upon a combination of tactile sensation, tactile position, and sound. The tactile sensation includes the Braille expressions as well as any marker on a template. The tactile position...http://www.google.fr/patents/US20030071859?utm_source=gb-gplus-shareBrevet US20030071859 - User interface device and method for the visually impaired
User interface device and method for the visually impaired
