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

Tim Blechmann TimBlechmann at gmx.net
Tue Dec 14 13:42:04 CET 2004

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

-----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

After one look at this planet any visitor from outer space 
would say "I want to see the manager."
				      William S. Burroughs

More information about the Pd-list mailing list