ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,464,488, issued on Nov. 4, was assigned to Relay Inc. (Raleigh, N.C.).

"Local location determination on portable communication devices" was invented by Dayne Batten (Cary, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In an example, a method includes obtaining, at a portable communication device (PCD), an environment dataset comprising point data. Each point data has a position and respective wireless signal data at that position within a fixed environment. Wireless access point data is received from one or more wireless access points in the fixed environment and includes a unique access point identifier and received signal strength values. The PCD...