[PD] Fw: [linux-audio-dev] [Fwd: Graphical dataflow programs violate patents]

Hans-Christoph Steiner hans at eds.org
Fri Dec 17 07:15:06 CET 2004



On Tue, 14 Dec 2004, Tim Blechmann wrote:

> i thought this might be of interest:
>
> Begin forwarded message:
>
> Date: Tue, 14 Dec 2004 10:59:16 +0100
> From: Xavier Amatriain <xamat at iua.upf.es>
> To: "The Linux Audio Developers' Mailing List"
> <linux-audio-dev at music.columbia.edu>
> Subject: [linux-audio-dev] [Fwd: Graphical dataflow programs violate
> patents]
>
>
> -----Forwarded Message-----
> > From: Xavier Amatriain <xamat at iua.upf.es>
> > To: iua-mtg at iua.upf.es
> > Subject: Graphical dataflow programs violate patents
> > Date: Tue, 14 Dec 2004 10:57:56 +0100
> >
> > I read that National Circuits sued and won a case against Mathworks
> > for their Simulink product infringing a number of paterns (September
> > this year).
> >
> > According to a summary of the claims (which you can read here
> > http://cafc.bna.com/03-1540.pdf): the dispute was about the term "data
> > flow diagrams" (which are interpreted) as a graphical computer program
> > whose execution follows a set of semantic or operational rules as
> > follows:
> >
> > 1. The order of the operations is not completely specified by the user
> > 2. The order of operations is implied by data interdependencies
> > 3. a node may only execute after all its inputs have become available,
> > and,
> > 4. outputs are generated after a node completes execution
> >
> > It turns out that most graphical audio programs such as Max, Pd, OSW
> > or CLAM's Network Editor may be infringing these patents. Luckily this
> > is still not valid in Europe and we hope will never be.
> >
> > Read more about this story at:
> >
> > http://patentlaw.typepad.com/patent/2004/09/federal_circuit.html
> > http://digital.ni.com/worldwide/bwcontent.nsf/web/all/03B9A7C68030C42D86256F08006499CD
> > http://www.mathworks.com/company/pressroom/articles/article7951.html
> > http://news.thomasnet.com/fullstory/16801
> --
> /**********************************
> ********* Xavier Amatriain ********
> ****** Music Technology Group *****
> ** IUA- Universitat Pompeu Fabra **
> ****** www.iua.upf.es/~xamat ******
> ***********************************/
>
>
>
> --
> mailto:TimBlechmann at gmx.de    ICQ: 96771783
> http://www.mokabar.tk
>
> After one look at this planet any visitor from outer space
> would say "I want to see the manager."
> 				      William S. Burroughs
>
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	zen
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