US Patent Issued to Aleddra on Feb. 10 for "Solid-state lighting with imperceptible visual stimuli" (Washington Inventor)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,550,237, issued on Feb. 10, was assigned to Aleddra Inc. (Renton, Wash.).

"Solid-state lighting with imperceptible visual stimuli" 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 sets of LEDs, a phase-amplitude circuit, and an LED driving circuit is used to replace a conventional luminaire with a possible severe temporal light artifact. The phase-amplitude circuit is configured to produce two sets of modulating signals with a predetermined phase retardation between the two. The LED driving circuit is configured to produce two sets of LED driving current in...