> >Unfortunately Texas Instruments has a patent on drawing 3-D images > >on a spinning helix. I was royally pissed to discover this in the > >late eighties because I'd prototyped it years earlier using a > >photocopier lens and a CRT after seeing an article in Byte magazine for > >creating a 3-D image using an oscilloscope and a spining mirror. > >The byte article even had 8080 code for generating simple vector > >graphics. > > Could you not use the Byte article as an example of "prior art" if > challenged? I have heard of people getting articles printed in obscure > newspapers in places like Iceland so as to have the "prior art" publishing > available, while having the article printed in a place where it was not > likely to be seen by anyone in the trade while they got their item to a > producible point, but no-one else could patent it as it was now published. > This 3D system is featured in the latest copy of a trade journal http://www.actuality-systems.com/ Regards Chris Carr -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body