This is probably the immersion patent that is preventing U.S users experiencing force feedback in their Logitech wheels.
This patent mostly applies to wheels themselves, yet I guess some of the finer points on the control could well have consequences, in much the same way the original patent case against rumble tech in the dualshock also cited Sony Software that made use of the tech.
But hell, Im not a patent lawyer!
Here you go!
http://patft.uspto.gov/netacgi/nph-P...y=PN/6104158
Edit, Immersion also have sveral patents for controller chips built into Logitech wheels and other devices and the methodology behind such controller chips, i believe that Immersion must also have some restriction on the use of code to make use of these controller chips that applies the feedback and would assume that thas is done through licensing.i guess that would be dealt with in IP law but may also be affected in some way buy one of Immersions many Patents in this field.
Edit2: this could well be the offending patent!!
http://patft1.uspto.gov/netacgi/nph-...S=AN/immersion
It seems immersion have pretty much tied down this whole area, so alternatives for Sony and PD are very limited!
Anyone no if there are any feedback wheels manufactured that dont use immersion tech and dont infringe immersion patents??
Unless Sony win Over this case, i cant see them eating humble pie and going to Immersion for the rights to use its FF tech!!
Start making noise now GT'rs You need Sony to listen to your needs.
Or will Kaz demand Sony sell off PD and GT franchise so he can get licensing with a third party (maybe not so crazy, Sony really could do with the money!),or he walks! or maybe he could buy pd out himself! is he that rich and devoted.
I have everything crossed that this scenario isnt going to be the same here in the U.K!!!!