Paul began working with computers in the late ’60s. He became a systems programmer in 1971, a data-communications system designer and consultant to Fortune-100 companies in the mid 70’s, and a computer hardware designer and inventor in the late 70’s. In the early 80’s he was a co-founder of the computer music laboratory in the computer science department at Carnegie Mellon University in Pittsburgh.
In the early ’80s, he invented the first optically-scanned multitouch sensor (the Sensor Frame) and the first optically-scanned musical instrument (the VideoHarp). Recently he has served as an expert witness in the patent wars between Apple and the Android smartphone manufacturers. He only has two patents, but they are pretty good ones. He often speaks of himself in the third person in order to promote the impression that you are reading an objective account of his accomplishments.