Patent US 6,084,576

A ergonomic keyboard that is suitable for all devices interfacing with a keyboard; and that is able to transmit on an unlimited amount of information including the more than 50 alphabets of the world, numbers, other symbols, programming, and operational information. The keyboard is ergonomically designed to take maximum advantage of the shape, dexterity, and strength of the hands and fingers so that the majority of the fingers on both hands are always naturally positioned on the home keys, and so the reaching to the other keys is natural and effortless. The ergonomic design and optimum distribution of the information bits on the keys makes the transfer of information on this keyboard the fastest possible with the least amount of effort and the least amount of errors, and it also makes the learning the fastest and easiest possible. A palm rest, thumb-activated trackball, one-hand typing option, palm keys, and an integrated joystick with a circular motion sensor around the palm rest offer the user unheralded ease of use.