ALEXANDRIA, Va., June 9 -- United States Patent no. 12,650,476, issued on June 9, was assigned to KEYSIGHT TECHNOLOGIES INC. (Santa Rosa, Calif.).

"System and method of emulating electrical power island" was invented by Paul Young (Budd Lake, N.J.) and Mark Peffley (Budd Lake, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method test sustained and anti-islanding capabilities of EUT, where a power island is sustained without anti-islanding functionality and becomes de-energized with anti-islanding functionality. The method includes applying grid voltage to the EUT to obtain measurement current from the EUT; calculating RLC component values of a programmable RLC filter from measurement curre...