US Patent Issued to Huawei Technologies on Oct. 20 for "Earphone and terminal device" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,987, issued on Oct. 20, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Earphone and terminal device" was invented by Tienan Zhang (Dongguan, China), Cunshuai Liu (Dongguan, China), Chao Xu (Shanghai), Qiang Zhang (Dongguan, China) and Lin Lu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "In accordance with an embodiment, an earphone includes: a housing having a cavity structure disposed within, and a sound output port in communication with the cavity structure; and a first sound transducer, a second sound transducer, and a third sound transducer disposed in the cavity structure, wherein: a sound production frequency of th...