ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,307, issued on Feb. 17, was assigned to MICROSOFT TECHNOLOGY LICENSING LLC (Redmond, Wash.).

"Presence detection power efficiency improvements" was invented by Shoham Dekel (Tel-Aviv, Israel) and Gilad Pundak (Rehovot, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are described for reducing the power consumption of a camera-based presence detection system of a user device. The camera-based presence detection system is used to transition the user device from a low-power mode to another power mode when the presence of a user is detected. To reduce the power consumption of the camera-based presence detection system, an opera...