Over two years ago, Agere Systems filed a suit against Sony for potential infringement on patents regarding "wireless local area network apparatus."
Looks like the courts https://www.docketnavigator.com/pdfs/txed-2-06-cv-00079-416.pdf in Agere Systems' favor.
Sony has been fined $18.5 million for use of the technology in their devices, such as the Mylo and PlayStation Portable.
Finally, the jury ruled that the patent infringement was willful. More PlayStation 3 News...