CSIRO won a further $220 million
settlement for Wi-Fi patent-infringements in 2012 with global firms in the United States
required to pay the CSIRO licensing rights estimated to be worth an additional $1 billion in royalties.
http://en.wikipedia.org/wiki/Wi-Fi#cite_note-billion-9http://en.wikipedia.org/wiki/Wi-Fi#cite_note-13http://en.wikipedia.org/wiki/Wi-Fi#cite_note-14I'd like to know whether the past participle "required" modifies "settlement."
Thank you in advance for your help.