ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,088, issued on Aug. 4, was assigned to Amazon Technologies Inc. (Seattle).

"Fault detection systems and methods for electric drives using redundant speed and position data" was invented by Lizon Maharjan (Seattle), Xiaoqi Wang (Bellevue, Wash.), Tausif Husain (Maple Valley, Wash.), Sheverria Antony Aikens (Mill Creek, Wash.) and Frederic Pierre Lacaux (Kirkland, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Fault detection systems and methods may include error determinations related to position sensors and/or sensorless estimators that are associated with respective motors or electric drives of an aerial vehicle. Based on various detected faul...