ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,297, issued on April 29, was assigned to BOARDING RING (Ollioules, France).

"Method for displaying a comfort-increasing and especially anti-motion-sickness visual reference" was invented by Renaud Jeannin (Ollioules, France), Antoine Jeannin (Ollioules, France) and Hubert Jeannin (Ollioules, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for displaying a visual reference in an image displayed by a viewing device masking all or some of the field of view of a user, said viewing device further comprising at least one movement sensor. The method defines a virtual tube around a viewing axis of the user, the walls o...