ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,477,265, issued on Nov. 18, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Portable audio device" was invented by Ilho Seo (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable audio device including a first earphone unit and a second earphone unit according to an embodiment of the present disclosure, wherein the first earphone unit comprises: a communication unit an audio output unit configured to output an audio signal received through the communication unit; a microphone; a sensor unit configured to detect a wearing state of the first earphone unit; and a processor configured to set the first earphone unit to a mic...