ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,382,563, issued on Aug. 5, was assigned to Aleddra Inc. (Renton, Wash.).
"Solid-state lighting with imperceptible flicker" was invented by Chungho Hsia (Bellevue, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting diode (LED) luminaire comprising two types of LEDs, a switching circuit, a signal generating circuit, and an LED driving circuit is used to replace a conventional luminaire with a severe temporal light artifact. The switching circuit and the LED driving circuit are configured to reduce a low-frequency ripple associated with AC mains. The signal generating circuit is configured to produce two sets of modulation signals with a ...