ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,477,311, issued on Nov. 18, was assigned to DABIDA CORP. (Gyeonggi-do, South Korea).
"Grouping method and system using bluetooth-based star network" was invented by Eunseung Lee (Gwangju, South Korea) and Hyunsoo Kim (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are grouping method and system using a Bluetooth-based star network. The present embodiment provides grouping method and system using a Bluetooth-based star network, which group an instructor and members into a primary group by using a star network so that the instructor can detect the breakaway of a moving group in the outdoors, without using a direction findi...