Sony has been ordered to pay compensation of USD 18.5 million (GBP 12.4 million) for being a copycat.
US courts found by clear and convincing evidence that Sony wilfully infringed on patents covering "wireless local area network apparatus" during the manufacture of the PlayStation Portable, mylo Personal Computer and Network Walkman products.
Agere Systems, an integrated network boffin, filed the original trademark, but has since merged with a company called LSI, which specialises on storage and networking.