Center) and the Burroughs Corporation merge to form Unisys. 15th June 1987>: Bob Berry and the team at Compuserve release a new graphics file format called GIF (Graphics Interchange Format). It can handle anything from 2 to 256 colours -- wow! -- and the graphics data is compressed with LZW. Just like Spencer, they had read the LZW algorithm in a magazine and had wrongly assumed that it wasn't patented. The GIF format becomes even more popular. tries to bring up the issue in public. Unisys have been ensuring hardware manufacturers (e. modem manufacturers and Postscript printer manufacturers)
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might just be a bit fucked). "Extenuating circumstance to be mentioned on Judgement Day:>We never asked to be born in the first place. As to the contention that PNGs are of a smaller file size, I have found this to be untrue for my purposes. images>, I was unable to achieve a smaller PNG than GIF on even one of my low bandwidth pornographic images. Both were set to lossless which is reasonable when the source image has 6 colors. At least for some people and some purposes, PNGs are inferior to GIFs. 06/20/2003 02:45:11 AM EST (>4. 06/20/2003 03:48:07 PM EST (>1. The GIF patent became public
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Center) and the Burroughs Corporation merge to form Unisys. 15th June 1987>: Bob Berry and the team at Compuserve release a new graphics file format called GIF (Graphics Interchange Format). It can handle anything from 2 to 256 colours -- wow! -- and the graphics data is compressed with LZW. Just like Spencer, they had read the LZW algorithm in a magazine and had wrongly assumed that it wasn't patented. The GIF format becomes even more popular. tries to bring up the issue in public. Unisys have been ensuring hardware manufacturers (e. modem manufacturers and Postscript printer manufacturers)
Nov 24th 2007 by http://dionpills. GIF patent dead at 20 || kuro5hin. I just heard some sad news on talk radio - GIF patent US4,558,302 was found expired in its patent office filing cabinet this morning. There weren't any more details. I'm sure everyone in the internet community will miss it - even if you didn't enjoy the litigation, there's no denying its contribution to bandwidth conservation. for 20 years, the contents of the patent are entered into the Public Domain and may be used absolutely freely by anyone. Officially titled "High speed data compression and decompression apparatus
handling. He calls it LZW, after the names of the inventors, Lempel-Ziv-Welch. The article includes a justification for data compression, an overview of common methods, and a detailed explanation and runthrough of the LZW algorithm. is released by Spencer Thomas, after the LZW article was published but before LZW was patented. readers, Spencer decided to implement the LZW algorithm he read in the magazine, completely unaware that there was a patent pending on the technique. 10th December 1985>: LZW patent is granted. September 1986>: The Sperry Corporation (owners of the Sperry Research
in the slightest. What happened to the "BURN ALL GIFS" rallying cry? It has been forgotten. There are all sorts of excuses; "It's too much hassle to convert all my graphics and their links", "Internet Explorer doesn't support PNG properly", "PNGs can't do animation and nobody supports MNGs". The best one of all: "Unisys will never sue me!". I wish Unisys a happy year squeezing the very last drops out of their monopoly. or "Why He Stopped Writing Compression Software". You must accept a cookie to log in. I don't have a website. I have some, but I'm changing them all to PNGs. Unisys will
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