ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,786,688, issued on Nov. 3, was assigned to Honor Device Co. Ltd. (Shenzhen, China).

"Data transmission method and terminal device" was invented by Jian Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides a data transmission method and a terminal device. The terminal device includes a primary subscriber identity module (SIM) card and a secondary SIM card. When the primary SIM card detects that a specified event is started, the terminal device obtains remaining duration corresponding to the secondary SIM card. The terminal device determines first preset duration corresponding to the specified event. When the rema...