ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,400,531, issued on Aug. 26, was assigned to Amazon Technologies Inc. (Seattle).

"Security camera device with passive infrared (PIR) sensors" was invented by Marcus-Alan Gilbert (Plano, Texas), Matthew J. England (Santa Monica, Calif.), Anandh Chellamuthu (Fremont, Calif.), Eric S. Micko (San Jose, Calif.), Sonny Windstrup Rasmussen (Singapore) and Andrii Borisovich Pavliukov (Kyiv, Ukraine).

According to the abstract* released by the U.S. Patent & Trademark Office: "An audio/video (A/V) device includes a first housing and a second housing that rotationally couples and uncouples to the first housing. The first housing includes a frame having a first cavity, a second cavity, and a wall...