ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,406, issued on Jan. 27, was assigned to Electronic Theatre Controls Inc. (Middleton, Wis.).
"Independent lighting control" was invented by John P. Thurk (Fitchburg, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting control system having a driver for independently controlling multiple light sources. One lighting control system includes an input capable of being driven in a first polarity and a second polarity reversed from the first polarity, a first light source connected to the input and configured to generate light when driven at the first polarity, and a second light source connected to the input and configured to generate light when...