ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,311, issued on Dec. 2, was assigned to QUALCOMM Inc. (San Diego).
"Backscatter-based positioning" was invented by Xiaojie Wang (Hillsborough, N.J.), Jing Sun (San Diego), Xiaoxia Zhang (San Diego) and Junyi Li (Fairless Hills, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes transmitting a configuration signal that indicates a tag address of a tag device and a modulation scheme for generation of a backscatter signal. The method also includes transmitting a positi...