Hillcrest Labs
www.hillcrestlabs.com/products/freespace.php
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
Hillcrest Labs’ patented Freespace motion control technology senses motion in three dimensions and precisely translates human motions into on–screen cursor movement. When embedded in a handheld input device, Freespace allows consumers to simply point