This AI Uses Echolocation to Identify What You're Doing Ifeadi C. 11:01 Feed: All Latest, Zero Tech Blog A research team built a device that can emit an ultrasonic pitch and pick up its echoes to tell if a person is sitting, standing, or walking. via Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsThe Best Indie Games You May Have Missed in 2021How to Stop Those Annoying Siri Notifications on AirPodsHow to Take a Slick, Professional Headshot With Your PhoneThe Morbid War Over Online ObituariesThe Metaverse Land Rush Is an IllusionHow to Return and Exchange Your Unwanted Gifts or Purchases