[libdca-devel] Re: patent claims
mru at inprovide.com
Wed Dec 22 21:40:07 CET 2004
Gildas Bazin <gbazin at videolan.org> writes:
> On Friday 17 December 2004 13:44, Måns Rullgård wrote:
>> Has anyone done any further investigation regarding the claims of DTS
> I'm not involved in the negotiations between the ECP (the school
> hosting/managing the VideoLAN project) and DTS Inc. so don't take my answer
> as the official version of what's going on.
> DTS Inc. sent a threat letter to the ECP asking them to stop distributing
> libdts which they say infringes on their patent. And they do indeed own a
> patent on DTS Coherent Acoustics.
> For the European version (which was apparently granted on 2004/10/13), see:
> The patent might be challengeable (at least for the decoder side) because it
> doesn't describe any invention as such but more a format of data (remember
> the infamous M$ patent on the ASF format ?).
Are software patents valid at all in Europe?
> However as everybody knows, it is a lengthy and expensive process to try to
> challenge (even a bogus) patent so I don't really expect the ECP will take
> this route.
> There were also talks about getting a license from DTS Inc. but I don't
> think this will play well with the GPL anyway.
Something is still better than nothing, IMHO.
> All in all it doesn't look too good to me, and even if the ECP decides to
> challenge the patent, it will take an awful long time before we can
> distribute libdca again.
Could it be distributed from some other country instead?
>> There are some little bugs and glitches I'd lend a hand in fixing, but
>> it seems like a waste of time if we are not allowed to distribute the
> Yeah, that really is a shame.
I notice the svn repository is still accessible if I use my password.
Still not much point committing changes, though, and it might not be a
good idea to do so either.
mru at inprovide.com
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