[gst-devel] Can a MPEG-1 with Audio Layers 1&2 plugin be in plugins-good (patentwise)?

[jjcogliati-gstreamer at yahoo.com]

The only MPEG-1 patent listed in the ISO patent database has expired.  But there still could be patents since before 1995 in the US, patents expired the longer of 20 years after being filed or 17 years after being granted.  So if a patent was filed in 1990, it would not expire till at least 2010 and if the patent office was slow to grant the patent, it could take even longer.  


--- On Mon, 8/25/08, Olivier Crête <olivier.crete at collabora.co.uk> wrote:

> From: Olivier Crête <olivier.crete at collabora.co.uk>
> Subject: Re: [gst-devel] Can a MPEG-1 with Audio Layers 1&2 plugin be in plugins-good (patentwise)?
> To: gstreamer-devel at lists.sourceforge.net
> Date: Monday, August 25, 2008, 8:52 PM
> On Mon, 2008-08-25 at 19:36 -0700,
> jjcogliati-gstreamer at yahoo.com wrote:
> > Okay, here is a recap of the patent status as I
> understand it:
> > MPEG-1 Video.  No unexpired patents known to this
> list, but might be patent encumbered.
> 
> The mpeg-1 standard dates from 1990, so the patents are
> expired in most
> jurisdictions (well all jurisdictions that I know of..)
> 
> -- 
> Olivier Crête
> olivier.crete at collabora.co.uk
> Collabora Ltd
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