When PrimeSense founder Aviad Maizels put a prototype of a 3D sensor on a chip in front of Microsoft in 2006, he had no idea it would lead to the biggest turning point in the Israeli startup's history. Four years later, its partnership with the Redmond giant resulted in Kinect, the motion-sensing camera that made headlines around the world. In 2013, however, Microsoft unveiled an all-new Kinect, the result of years of entirely in-house development -- without PrimeSense's assistance. As fate would have it, the company returned to its chip-making origins a year ago, creat