Copyright and video games between the games were limited to the plaintiff's ideas. According to the court the similarities, "were inevitable given the requirements of the idea of a game involving a spaceship combating space rocks and given the technical demands of the medium of a video game." In Atari v. North American Philips Consumer Electronics Corp. (1982) the 7th Circuit wrote that "no plagiarist can excuse the wrong by showing how much of his work he did not pirate." This was said in the context of the fact that, "while a game is not protectable by copyright as such, this kind of work
Nolan Bushnell restaurant executive and focused on Catalyst Technologies. Through 1981 and 1982, Bushnell concentrated on PTT subsidiaries Sente Technologies and Kadabrascope. Sente was a reentry into the coin-operated game business. Arcade cabinets would have a proprietary system and a cartridge slot developed by Data East Corporation, so operators could refresh their games without having to buy whole new cabinets. Kadabrascope was an early attempt at computer assisted animation. In 1983 as the restaurants started to lose money, Sente, though profitable, was sold to Bally for $3.9 million and Kadabrascope was sold to Lucas which became the beginnings of what became Pixar.