[ODE] Quickstep and patents
Klaus.Backert at t-online.de
Thu Jun 7 09:03:46 MST 2007
Am 07.06.2007 um 16:13 schrieb Patrick Enoch:
> Hello all,
> this is really funny!
> How exactly do these patents work? Is only the *full interaction of
> all parts* patented (e.g. SOR + Systemmatrix + Mass-matrix), or *all
> single parts seperately*?
> For each single part, there should be thousands of references BEFORE
> 2004. For example, Gauss-Seidel originates at least back to 1855
> (that is when Gauss died), SOR is a modification also known a long
> Massmatrix should be covered in any "applied engineering" book
> covering physical properties.
> "Jacobian" of joint-freedoms, OMG how old is that exactly? I think
> the introduction of lambda is a smart move, but there should be a
> reference for that, too. BTW, Mr. Jacobi died 1851.
> Best regards,
that is so true, Patrick, and let me add this:
From 1980 on I worked for a big company as a mathematician. We
implemented a lot of "these" algorithms in a software package. At
that time several important players in the software market did the
same, including U.S. companies. Several of these software packages,
or derivatives of them, are still in use worldwide.
Most, if not all, algorithms used by ODE are based on knowledge,
which is told as standard at the applied mathematician departments of
european universities. If I scan the websites of american and
canadian universities - I did that some time ago because of other
reasons -, then it looks just the same. The "prior knowledge" resides
in the textbooks, scripts and brains of many applied mathematicians.
For the european market, by the way, Ageia's supposed patent is
completely worthless, as far as I know.
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