Abstract: A three-dimensional display system for co-spatial point display of information emanating from at least two biophysical sources. The system includes a rigid, transparent three-dimensional structure within which is provided co-spatial visual display elements arranged in a three-dimensional geometry at regular coordinate addresses. Information input terminals, including terminals for biological interface, are provided. Also furnished is logic for assigning a three-dimensional coordinate address, at uniform time intervals, for the informational input from each of the biological sources. Each of the display elements are energized in a fashion that is input-responsive to the coordinate addresses corresponding to the system inputs. The system is further provided with detectors for alerting the users to spatial and temporal coincidence of energized visual elements resultant from simultaneous inputting of like coordinate addresses by the biophysical source.

Abstract: A light projection tag system provides for the detection of spatially coincident light patterns projected by competing players on a gaming surface. Each player is equipped with an optical transceiver with a field-of-view that is geometrically coincident with the light pattern projected from the transceiver. Each player's transceiver can detect when an opponent's light pattern, also projected on the gaming surface, enters this field-of-view thereby achieving a tag. Detection methods include the use of modulated visible or infrared light. Various embodiments of the system include automatic targets and projected gaming mazes.

Abstract: A light projection tag game requires the overlap of player projected images on a gaming surface. Each player is provided with an optical transceiver which has a receiver with a narrow field of view that is geometrically coincident with the light beam projected from the transceiver. Each player's transceiver can detect when an opponent's image which is also projected on the gaming surface enters this field of view thereby achieving a tag. Receiver methods use either signal transients or infrared modulation. Various embodiments include automatic targets, automatic game control and projected gaming mazes.