US Patent Issued to Panasonic Intellectual Property Management on Nov. 25 for "Earphone and acoustic control method" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,819, issued on Nov. 25, was assigned to Panasonic Intellectual Property Management Co. Ltd. (Osaka, Japan).

"Earphone and acoustic control method" was invented by Takeshi Takahashi (Fukuoka, Japan) and Shigeki Ito (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An earphone includes a housing having a space therein and having a path capable of ventilation from one end side on an external auditory canal side of a wearer to the other end side on an ambient environment side, a valve accommodated in the housing and configured to switch the path between an open state and a close state, a microphone disposed on one end side of the housing and ...