ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,893, issued on Jan. 13, was assigned to SIGNIFY HOLDING B.V. (Eindhoven, Netherlands).
"Emergency lighting system" was invented by Abhishek Chandrashekar Sabnis (Collierville, Tenn.) and Tawatos Phadungsoondararak (Memphis, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An emergency power system (100) and emergency lighting dimming method are disclosed. The emergency power system (100) includes a power source (10), a phase-cut waveform generator (11, 13, 300, 310, 311, 400, 410, 411) coupled to the output of the power source (10) and arranged to provide a phase-cut waveform (FIGS. 2 and 3) to a load (12). The load may be one or more emergency ...