GIF Slips Away From Unisys; Your Move, IBM

Twenty years ago, Terry Welch's improvement on Lempel-Ziv compression appeared in IEEE Computer magazine. The authors of unix 'compress' and the GIF standard incorporated that algorithm without realizing it was patent-pending. When the submarine patent surfaced ten years later, its new owner Unisys intimidated developers and web authors into moving away from GIFs, inspiring the creation of a better standard, though sadly still a less popular one. Today, July 7, 2004, Unisys's last LZW patent (in Canada) expires, leaving GIF once again free... almost. See, there's the small matter of IBM's patent, granted on the same algorithm, which is valid for another two years. That still has a chilling effect on GIF development, though the consensus seems to be that IBM would lose any court action it tried to bring. So how about it, IBM? You've got nothing to lose! Want to make a lot of geeks happy and release that final patent into the public domain?

Comments

Let me help you get it

[ElectricPoppy]

The vast majority of Slashdot readers are or were just a bunch of spoiled, lazy kids. While mommy and daddy worked hard to hand them everything they ever wanted on a silver platter, they sat on the floor glued to their stupid anime videos all day.

Now, they've grown into adults, but still have the belief that everyone owes them anything they want. Thus, patents are evil. Everything should be free.

Re:not even close!

[ShavenYak]

Okay, asshat, how much more does it cost to use PNG than it would to use GIF?

By the way, "alot" is not a word. For that matter, neither is "themselfs".

Re:Transparency not a *required* part of PNG

[Ender Ryan]

Oh, do go get bent, you pedantic assclown.