An input device and a method for entering data in an electronic terminal. The aspects of the invention relates in particular to a method of using joystick movement sequences or the like to enter data and to a mobile communication terminal incorporating such a method. ...http://www.google.com.tw/patents/US20070273648?utm_source=gb-gplus-share專利 US20070273648 - Method and Apparatus for Entering Data with a Four Way Input Device
