Dan Kramer, Atari Trak-Ball Controllers
Dan Kramer worked at Atari from 1980 to 1984 in the consumer engineering group where he created products for the home computers and home video games. He championed the creation of the Trak-Ball accessories for the Atari game consoles and computers, and received a patent for his digital-to-analog interface for the Atari 5200 trak-ball. He also worked on the French (SECAM) version of the Atari XL computers, the Atari 2700, and various other projects.
This interview took place on December 18, 2020.
Playing Catch-Up: Dan Kramer (2005 interview): https://www.gamasutra.com/view/news/97175/Playing_CatchUp_Dan_Kramer.php
Patent: Digital-analog conversion for shaft encoders: https://patents.justia.com/patent/4496936
Video version of this interview at YouTube: https://youtu.be/l0E6BCrhka0