Atari, Inc. he was being put to the side by Bushnell; Bushnell had left him out of several high-level meetings, assigned him to overseeing the manufacturing process but not the design work, and Dabney discovered Bushnell had patented his video circuit concept without him as an inventor. In March 1973, Dabney formally left Atari, selling his portion of the company for . While Dabney would continue to work for Bushnell on other ventures, including Bushnell's Pizza Time Theater, the predecessor to Chuck E. Cheese's, he had a falling out with Bushnell and ultimately left the video game industry. Dabney's contributions towards Atari's
Kramer Electronics Kramer Electronics bought Sierra Video, a company that manufactures Broadcast Routing equipment which expanded the Kramer product offering into large format routing products for composite video, RGBHV video and SDI and HD-SDI signals as well as audio signals. Kramer Electronics was founded in 1981 by Joseph Kramer. Dr. Kramer, whose PhD is in pharmaceutical biology, had been working in research and development at a company that manufactured headphones. When that company went out of business, he foresaw the significance of video, then in its infancy, and used the distribution channel that had existed to start selling video products of his