The University of Wisconsin Madison has file a suit agains Sony and Toshiba. They claim that PlayStation 2's Emotion Engine infringes an old university patent which has been filed back in 1986. Little information about the patent is available for us at the moment. The gameindustry.biz reports the following:
The PlayStation 2 is based on a MIPS processing core with custom extensions added to it to improve the efficiency of the console. This unit is known as the "EE Core" - while Emotion Engine is a term used to describe this component and several others which are integrated onto a single chip and form the heart of the console's processing power.This is a very interesting case, since it's an academic institution vs. two consumer electronics giants. If the suit holds, it will be interesting to see how much money Sony is has to use for settling the case with the university.