ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,835, issued on Dec. 9, was assigned to DELTA ELECTRONICS INC. (Taoyuan, Taiwan).

"Communication system" was invented by Chieh-Tsao Hwang (Taoyuan, Taiwan), Siang-Rong Hsu (Taoyuan, Taiwan) and Yen-Ting Chen (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A communication system is disclosed. The communication system includes an active antenna set and a passive antenna set. The active antenna set includes at least one active antenna array, the at least one active antenna array is configured to transmit a first signal through at least one active beam group, and the at least one active beam group covers a first coverage area with a first ...