The latest in a growing list of drone delivery-related patents awarded to Amazon is for a system that would enable the air vehicles to recognize human gestures and speech and respond accordingly. The U.S. patent (no. 9,921,577, filed in July 2016) says the ability to recognize gestures, speech or flashing lights could improve safety by avoiding collisions and allow humans to provide navigation and guidance to drones. According to the patent, waving your arms in a shooing gesture could be ...
