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Re: [ITPOLITIK] for 17. gang (was: Softwarepatenter...



E. Sjørlund wrote:
> Nu forvirrer du mig.
> Jeg troede netop at .png formatet var licensfrit?
Apple har et patent på det at have et alfa plan.


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http://slashdot.org/article.pl?sid=01/11/16/011202&mode=thread

Apple Patent Blocking PNG Development
[ Patents ]Posted by timothy on Friday November 16, @01:00
from the everybody-needs-a-png-or-two dept.

Daniel writes: "Apple has a patent (U.S. Patent No. 5,379,129) on
compositing a source and destination image using a mask image. This
patent appears to read on alpha channel transparency, which the PNG
and MNG file formats use. APPLE has declared in their patent statement
to the Scalable Vector Graphics Working Group that their patent is
only available for RAND Licensing. Since this patent appears to read
on the PNG file format, Apple is hampering work on the PNG and MNG
file formats. Perhaps Apple would like to clarify this situation by
explicitly stating that this patent does not cover the PNG and MNG
file formats or by RF Licensing their patent to the PNG and MNG
development groups. Alternatively, the PNG and MNG developers are
asking people to submit prior art in order to invalidate Apple's
patent . SGI in particular appears to have prior art with their
'blendfunction.' Make sure the prior art you submit is older than May
08, 1992, the filing date of Apple's patent."

> Hvad skal jeg lægger mig fast på, .png eller .jpg?

Måske skulle du skrive til dit partis IT-taler, og spørge
om det spørgsmål!

Anyways så er jpg fri, så vidt jeg ved.

-- 
  Mvh. Carsten Svaneborg


 
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