From All About Circuits: Google ATAP is bringing touchless interfaces to the market using a miniaturized radar chip no bigger than a dime. This is Project Soli.
Soli’s radar sensor is a marvel in many respects. For one thing, it solves a long-lived issue when it comes to gesture-recognition technology. Previous forays into the topic yielded almost-answers such as stereo cameras (which have difficulty understanding the overlap of fingers, e.g.) and capacitive touch sensing(which struggles to interpret motion in a 3D context).
Google ATAP’s answer is radar.
Radar is capable of interpreting objects’ position and motion even through other objects, making it perfect for developing a sensor that can be embedded in different kinds of devices like smartphones... (full article)
TX2 robots: redefining performance by offering collaborative safety and high performance in a single machine. These pioneering robots can be used in all areas, including sensitive and restrictive environments, thanks to their unique features. Safety functions are easy and inexpensive to implement. They allow a higher level of interactions between robots and human operators, while still guaranteeing protection of your people, production and investment.