ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,878, issued on Sept. 1.

"Adaptive switching and fusion method based on bluetooth intercom and cloud intercom" was invented by Peng Wang (Shenzhen, China), Cheng Luo (Shenzhen, China) and Xiaohong Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adaptive switching and fusion method based on Bluetooth intercom and cloud intercom is disclosed, including, establishing a Mesh voice network; establishing a shadow chat network at a server in a cloud network; detecting online statuses of all the Mesh nodes in real time, and updating the online statuses of the Mesh nodes in the server in the real time; in response to a Mesh node being...