ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,373, issued on March 24, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).
"Vehicle headrest" was invented by Shuyuan Sun (Changzhou, China), Yiming Meng (Changzhou, China), Xin Zhang (Changzhou, China) and Xiang Huang (Changzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a vehicle headrest including a main body having a receiving chamber and a first sound hole, and a speaker module including a housing fixed to the main body and including a sound outlet, a speaker unit including a diaphragm, and an acoustic inverting tube. The housing further comprises a back sound hole communicated w...