ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,526, issued on Nov. 4, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Driving assistance device" was invented by Taiki Iida (Nisshin, Japan) and Yusuke Tatesumi (Seto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The driving assistance device includes: a fluctuation amount recognition unit; a driver abnormality recognition unit that recognizes an abnormality of a driver of another vehicle based on a captured image of an external camera provided in a vehicle; an abnormal state determination unit that determines whether the other vehicle is in a fluctuation abnormality state based on a comparison result between a fluctuation amount of th...