A force feedback wheel is provided on a mouse or other interface device manipulated by a user. A sensor detects a position of the mouse in a workspace and sends a position signal to a connected host computer indicating that position. A rotatable wheel is mounted upon the manipulandum and rotates about...http://www.google.com/patents/US6128006?utm_source=gb-gplus-sharePatent US6128006 - Force feedback mouse wheel and other control wheels
