ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,155, issued on May 27, was assigned to DENSO International America Inc. (Southfield, Mich.) and DENSO Corp. (Kariya, Japan).

"System and method of calibration for establishing real-time location" was invented by Eric J. Smith (Holland, Mich.), R. Michael Stitt (Ada, Mich.) and Karl Jager (Zeeland, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method are provided for obtaining calibration data for a portable device relative to an object in order to facilitate defining a locator for determining a location of the portable device relative to the object. The system and method may obtain calibration data pertaining to a signal characte...