US Patent Issued to Honeywell International on Aug. 4 for "Elevator positioning system with frequency spectrum footprinting" (North Carolina Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,184, issued on Aug. 4, was assigned to Honeywell International Inc. (Charlotte, N.C.).

"Elevator positioning system with frequency spectrum footprinting" was invented by En Yi Chen (Charlotte, N.C.), Yang Lu (Charlotte, N.C.) and Hong Lei Jiang (Charlotte, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments are directed to determining an elevator car position within an elevator shaft using footprint representations or descriptions of frequency spectrum data at reference positions along the elevator shaft. In one aspect, an example method is provided. The method includes determining reference frequency spectrum data for each of a p...