I worked at a video surveillance company many years ago. We built PTZ controls that worked on the desktop and over the network via a web page... this was in ear

I worked at a video surveillance company many years ago. We built PTZ controls that worked on the desktop and over the network via a web page... this was in early 2000s. We also got hammered by a patent troll because apparently, the math behind stitching fisheye lenses into a flat video plane is somehow patented.