Position tracking system using a radiation director which directs radiation from a radiation source onto a radiation sensor, depending on the position of the radiation source.
Electronically aligned man-machine interface.
Method and system for generating objects for a multi-person virtual world using data flow networks.
Man-machine interface for a joint measurement system.
“Reality Built for Two: a Virtual Reality Tool”, ACM SIGGRAPH Computer Graphics, Volume 24 Issue 2, March 1990, Pages 35-36.