ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,557,959, issued on Feb. 24, was assigned to BSH Hausgeraete GmbH (Munich).

"Creation of a map of the surroundings" was invented by Sebastian Haug (Leinfelden-Echterdingen, Germany), Maximilian Fremerey (Saal an der Saale, Germany) and Marco Lampacrescia (Stuttgart, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A map of the surroundings for a motorized domestic appliance is created by transmitting signals and allocating reflections to points. A local distribution of the points is formed. Points are discarded if a correspondence of the distribution to a straight line fails to reach a predefined degree. In a second variant, points whose distance f...