A low-cost pad pointing device with improved performance, reliability and durability, that can be used as a cursor pointing device for computers, remote controls, web TV, TV guide browsers, video games, consumer electronics, industrial controllers, medical, automotive and other applications. A protruding...http://www.google.co.uk/patents/US5912612?utm_source=gb-gplus-sharePatent US5912612 - Multi-speed multi-direction analog pointing device
