ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,432, issued on Sept. 8, was assigned to Useful Sensors Inc. (Mountain View, Calif.).

"Low-resolution embedded face identification sensor with machine learning" was invented by Peter Charles Warden (San Francisco) and James Muyao Wang (Rosamond, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for sensing faces based on capturing low-resolution images and machine learning are disclosed. One or more images are captured by a face identification sensor. The face identification sensor includes a low-resolution camera, a microcontroller, and an external memory. At least two machine learning models operate simultaneously on the microcontrol...