US Patent Issued to T-MOBILE INNOVATIONS on April 7 for "Indoor-outdoor detection by smartphone without using GPS information" (Washington, California Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,168, issued on April 7, was assigned to T-MOBILE INNOVATIONS LLC (Overland Park, Kan.).

"Indoor-outdoor detection by smartphone without using GPS information" was invented by Antoine Tran (Bellevue, Wash.), Po-Han Wu (Renton, Wash.), Doug Francis Kiely (Cupertino, Calif.) and Jie Hui (Bellevue, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for determining that the device is not reporting precise location information, based on output from one or more sensors determining that the device is located indoors and determining the altitude of the device. Based on the determination that the device is located indoors, s...