One second review, this doesn’t look like a gold mine. http://www.google.com/patents?as_q=elliptic+curve+cryptography&num=10&btnG=Google+Search&as_epq=&as_oq=&as_eq=&as_pnum=&as_vt=&as_pinvent=&as_pasgnee=Matsushita&as_pusc=&as_pintlc=&as_drrb_is=q&as_minm_is=1&as_miny_is=2007&as_maxm_is=1&as_maxy_is=2007&as_drrb_ap=q&as_minm_ap=1&as_miny_ap=2007&as_maxm_ap=1&as_maxy_ap=2007
Matsushita Electric Industrial Co., Ltd. (Panasonic), a member of AACS LA, has earlier patents on Elliptic Curve Cryptography, Certicom is in for a long litigation journey it seems.
Well AACS is more than just Sony. An injuction would screw HD DVD as it’s their sole encryption method. Blu-ray would take a hit but they have BD+ spooled up and ready to roll sometime this summer.
"Hiccups" could cause things to go quickly south for the AACS'ers.
HF