ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,508, issued on June 23, was assigned to GUANGZHOU RISING DRAGON RECREATION INDUSTRIAL Co. LTD. (Guangzhou, China).
"Control signal transmission method for lamp system" was invented by Ziqin Guo (Guangzhou, China) and Bo Liang (Guangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An LED lamp system driven by a two-wire transmission circuit, includes an LED lamp with red lamp beads, green lamp beads and blue lamp beads; a red-line control signal detecting circuit configured to detect a red-line control signal from a combined control signal transmitted by the two-wire transmission circuit and output the red-line control signal to the red lam...