ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,501,199, issued on Dec. 16, was assigned to Harman International Industries Inc. (Stamford, Conn.).
"Power circuit for wireless earphone" was invented by Linyong Fan (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power circuit for a wireless earphone includes a first charging terminal, a second charging terminal, a charger, a battery circuit, and a control circuit. The charger is enabled via a voltage across the first charging terminal and the second charging terminal. The battery circuit is connected to the charger. The control circuit is connected to the first charging terminal and the battery circuit. The control circuit is configu...