US Patent Issued to CHANGZHOU AMT on May 12 for "Speaker" (Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,627,931, issued on May 12, was assigned to CHANGZHOU AMT Co. LTD (Changzhou, China).

"Speaker" was invented by Zhaoyang He (Changzhou, China) and Lei Yang (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a speaker, which comprises a housing as well as a magnetic circuit system and a vibration system arranged the housing, the vibration system comprises a planar first voice coil which can generate mechanical motion under the action of a magnetic field of the magnetic circuit system, a planar first vibration diaphragm driven by the first voice coil, and the first voice coil is arranged on the first vibration ...