According to foreign media reports, Apple was recently ruled to pay $506 million to the Wisconsin Alumni Research Foundation (WARF) for patent infringement, while the jury initially asked Apple to pay only $230 million. William Conley, District Judge of Madison in the United States, added an additional $272 million in compensation on the basis of $234 million, on the grounds that Apple has not stopped the infringement and needs to continue to pay compensation to WARF. Apple spokesmen have not yet commented on this judgment, but judging from Apple's patent cases in recent years, it seems that huge compensation has become a commonplace for Apple.

WARF sued Apple in 2014, claiming that the processor used in some versions of iPhone infringed one of its patents describing "predictive circuit". Gurindar Sohi, a professor of computer science at the University of Wisconsin, and three of his students obtained the patent in 1998. The patent can predict the instructions sent by the user to the system, thus improving the processor performance.

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