Abstract: A single-hand controlled computer input device can be used as a keyboard or a pointing device. When used as a keyboard, a housing is mounted for rocking movements between three stable positions, including two angular end positions and one intermediate position midway between the end positions. Stability in the intermediate position is provided by resting the housing of the keyboard on two spaced stable elements, each of which serves as a separate axis for pivoting the housing to one of the angular end positions. Characters, numerals, symbols and functions may be selected using one hand by initially pre-selective rocking of the housing by movement of the hand to one of the stable positions to enable an associated actuator switch and subsequently actuating at least one of the multi-function keys on the keyboard by contact of a key with a tip of the user's finger. The housing may be supported on a working support surface or can be mounted for rocking on a stationary base.

Abstract: A one-handed keyboard is disclosed which includes a stationary base and a rocking keyboard which is mounted for rocking movement between a normal level position and right and left depressed positions. A selector key is mounted on the rocking keyboard for rocking therewith and also being pivotally mounted for movement between a normal upper or raised position and a lower postion to which it moves when the user rests the palm of his hand on it. A cluster of keys is provided, each of which is multi-function representing a plurality of alpha-numeric characters and/or symbols that can be typed or entered by selective actuation of the character keys, rocking keyboard, selector key and a shift key by movements of one hand and movements of the fingers thereof.