ALEXANDRIA, Va., June 16 -- United States Patent no. 12,659,577, issued on June 16.

"Monitoring device and monitoring system" was invented by Xiaokang Chen (Changsha, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A monitoring device and a monitoring system are provided. The monitoring device includes a camera module, a display module, a first battery, and a second battery. The camera module includes a first housing body, a first communication module, and a camera. The first communication module and the camera are disposed on the first housing body, and the camera is configured to acquire images. The display module includes a second housing body, a second communication module, a first charging module, ...