AMD is a pretty big name in the technology world. The semiconductor manufacturer, which rarely pursues legal action against others (at least publicly), has filed a patent infringement complaint with the U.S ITC against several other entities. It asserts that the offensive uses of those technologies negatively impacts AMD and its licensees.
The complaint alleges that MediaTek, LG, Vizio, and Sigma Designs infringe upon three graphics processing patents (two of those belonged to ATI Technologies and the other is one that AMD has filed itself).
AMD is going after MediaTek, LG, Vizio, and Sigma Designs over alleged patent infringement was written by the awesome team at Android Police.