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Date Posted: 05:49:23 08/23/04 Mon
Author: Katja Bergman
Subject: Re: LWZ compression
In reply to: John Beirne 's message, "LWZ compression" on 10:05:31 08/20/04 Fri

According to <a rel=nofollow target=_blank href="http://burnallgifs.org/">http://burnallgifs.org/</a> the GIF format is not patent-free but the LZW compression method still isn't. Unisys still holds the patent to this compression technique outside the USA. However, this patent might be gone completely in 2005.
Still, it might be risky to use LZW compression in components and tools since you'll never know what Unisys will do next. I think it's better if the world just stays Unisys-free and just waits until Unisys goes tits-up by just denying the company any market-share...

Katja.

>Now that LWZ patents have all expired (I think!), is
>LWZ compression likely to be included for TIFFs?
>
>Thanks

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