ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,507,000, issued on Dec. 23, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).
"Coaxial speaker" was invented by Tao Shao (Changzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a coaxial speaker including a frame, a magnet system, a first vibration system, and a second vibration system surrounded by and coaxially arranged with the first vibration system. The first vibration system includes a first diaphragm and a first coil. The second vibration system includes a second diaphragm and a second coil. The magnet system includes a first yoke, a first magnet and a second yoke, a second magnet and...