ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,256, issued on March 18, was assigned to SIGNIFY HOLDING B.V. (Eindhoven, Netherlands).

"Light source module functioning as a user control interface" was invented by Liang Zhou (Shanghai), Chen Hao Kou (Shanghai), Liwen Zhou (Shanghai) and Qi Zhang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control interface (10) for controlling a system, comprising a module comprising: a carrier (32) having a top surface and an opposite bottom surface; an elongate window formed in, or adjacent, the carrier; an elongate array of light sources (36) on the bottom surface of the carrier; a reflector arrangement (40) for reflecting light from the array ...