ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,169, issued on Nov. 18, was assigned to Sonitor Technologies AS (Oslo, Norway).
"Step-based positioning" was invented by Vincent Martello Kwie Hoe Thio (Oslo, Norway) and Wilfred Edwin Booij (Oslo, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a positioning system (100) for estimating the position of a mobile device (7), a processing system (9) receives external-range data, representative of a range between the mobile device and an external unit (2, 3, 4, 5), and acceleration data representative of acceleration of the mobile device due to its movement as it is carried by a person (6). The acceleration data is processed in a step-detection...