US chip-related intellectual property company Opti has accused AMD of infringing three of its patents, all centring on techniques microprocessors can use to predict cache memory access requirements. Opti's lawsuit, filed with the US District Court for the Eastern Texas, claims AMD is shipping CPUs that use such techniques and that AMD does so without its permission. It also claimed AMD "induced" other companies to infringe the patents too - in other words, by selling allegedly infringing processors to its customers.
Read Here