Ergonomic input device

摘要

The device comfortably supports the hand of the user while the thumb and fingers are associated with keys, a trackball, and a scrolling wheel carried on the device. The overall configuration of the device and the arrangement of these actuators permits the user to operate all of the functions provided by the actuators while the forearm is in a neutral posture zone between pronation and supination of the forearm, and the wrist and fingers are minimally extended and comfortably flexed, respectively.