Keyboards, keypads and other data entry devices can suffer from a keying ambiguity problem. In a small keyboard, for example, a user's finger is likely to overlap from a desired key to onto adjacent ones. An iterative method of removing keying ambiguity from a keyboard comprising an array of capacitive...http://www.google.fr/patents/US7821425?utm_source=gb-gplus-shareBrevet US7821425 - Capacitive keyboard with non-locking reduced keying ambiguity
Capacitive keyboard with non-locking reduced keying ambiguity
