ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,959, issued on May 27, was assigned to Sony Advanced Visual Sensing AG (Schlieren, Switzerland).

"Environmental model maintenance using event-based vision sensors" was invented by Christian Brandli (Baden, Switzerland), James G. Lewis (Riehen, Switzerland) and Stefan Isler (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system comprising one or more event-based vision sensors for monitoring an environment and one or more depth sensors monitoring the environment as well as potentially additional sensors to monitor the environment such as inertial measurement units and image sensors. The device as a processor assembly ...