A word pattern recognition system based on a virtual keyboard layout combines handwriting recognition with a virtual, graphical, or on-screen keyboard to provide a text input method with relative ease of use. The system allows the user to input text quickly with little or no visual attention from the...http://www.google.com.au/patents/US7706616?utm_source=gb-gplus-sharePatent US7706616 - System and method for recognizing word patterns in a very large vocabulary based on a virtual keyboard layout
