We are going to propose a new input unit, a new way of operation and the support software by which we can input text at high speed and can also input mouse data, with single hand. The mobile devices such as notebook PC, palmtop PC, PDA are becoming smaller and smaller, and also are becoming light weight. We have a lot of potential for much smaller and much lighter mobile devices. However, input unit for text and for the other operations is really a problem. A conventional keyboard is not suited for mobile devices.
Touch typing on conventional keyboard requires both hands operation.
Single Hand Key card which enables us touch typing text input and mouse data input. One is holding a card with the thumb and a part of his palm. On the card there are keys for text input and a stick and switches for mouse data input. Thus one is able to operate a mobile device using only one hand. The eighteen keys are in three row and six columns.