Methods of obtaining input for controlling execution of a game program are disclosed. Controller input information can identify a current position of a user-movable control stick in relation to a rest position of the control stick. Supplementary input information from an environment can indicate a three-dimensional...http://www.google.com.au/patents/US7854655?utm_source=gb-gplus-sharePatent US7854655 - Obtaining input for controlling execution of a game program
