Image Number 3 for United States Patent #8130197.
An ergonomic keyboard that alleviates repetitive stress injuries by eliminating static repetition in the use of keyboards. The keyboard includes a plurality of key zones, the key zones being adapted to move. The zones are moved by moving means. The key zones move when any one or more of predetermined conditions occur such as a set time, number of keystrokes, time interval, keystrokes in a zone or area, preprogrammed injury status, preprogrammed injury prevention, programmed diagnosed condition, key temperature, keyboard vibration, manual adjustment, and user pattern or preference.