ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,499,696, issued on Dec. 16, was assigned to Aptiv Technologies AG (Schaffhausen, Switzerland).

"Method of determining drowsiness of a driver in a vehicle" was invented by Alexander Barth (Wermelskirchen, Germany) and Timo Rehfeld (Cologne, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and techniques are provided for detecting drowsiness of a driver in a vehicle. In aspects, a driver is monitored by capturing an image sequence of an interior of the vehicle via a camera system. The image sequence is then analyzed to extract a characteristic pattern of the driver. An activity level of the driver is determined based on at least one of the i...