QuoteAccording to the documents, LG said it holds two patents that it believes Sony violates in the PlayStation 3 related to the way a Blu-ray player reproduces data from a Blu-ray disc. The company cited another patent that covers the "reproduction of multiple data streams" by way of multiple camera angles. LG also said Sony violates a patent it holds on the display of text subtitles on Blu-ray.
LG's decision to take aim at Sony follows a complaint filed by Sony with the ITC in late December. In that complaint, Sony said that LG violates patents it holds for mobile phones. The company asked the ITC to bar LG from selling its mobile phones in the United States.