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 www.compression-links.info: Find, download & compress! 
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| GIF area, LZW area, Patents content | A Unisys press release explaining their beliefs regarding licensing required to use GIF technology in your products. As of this posting (8/2003) the US patents appear to have expired, but there are European and Japanese patents will not expire until some time in 2004. Created: 24/08/2003 by Mark Nelson |
| Compression area, Patents content | The comp.compression FAQ attempts to shed some light on this topic. Created: 04/11/1999 by Mark Nelson |
| LZW area, Patents content | Drew Scott Daniels was attempting to find out when all the LZW patents all over the world were going to expire. This is not as easy as you might think! Drew was kind enough to forward links to the message boards where the question was posted. To follow the thread, go to the bottom of the page and click on the Next by thread link. Created: 26/04/2003 by Mark Nelson |
| Audio area, Video area, Patents content | The rules from Microsoft on what you can and can't distribute from Windows Media 9. Created: 23/04/2003 by Mark Nelson |
| JPEG area, Patents content |
A position paper from Dr. Klaus Jung and Prof. RuediSeiler, representing Algo Vision LuraTech GmbH. They show in some detail that Forgent's claims on a patent that covers JPEG are not valid.
Reader John F. said: Goodbye Forgent and your lawyer pals at Jenkens and Gilchrist! We'll see who has the last laugh on this deal, in the early part of 2003 this story has been very quiet. Created: 15/09/2002 by Mark Nelson |
| JPEG area, Patents content | The New York Times covers the Forgent JPEG case. A good overview of the case. Created: 08/08/2002 by Mark Nelson |
| JPEG area, Patents content, Companies content | Forgent explains their position with respect to the infamous '672 patent. Created: 08/08/2002 by Mark Nelson |
| JPEG area, Patents content | An article on CNET regarding the Forgent JPEG patent. This article brings up the allegation that one of the patent authors sat on a JPEG committee. Created: 08/08/2002 by Mark Nelson |
| JPEG area, Patents content | The Register UK reports that the ISO may withdraw the JPEG image format standard if the Forgent '672 patent holds up. Created: 08/08/2002 by Mark Nelson |
| JPEG area, Patents content | ExtremeTech reports on the Forgent JPEG patent case. Created: 08/08/2002 by Mark Nelson |
| JPEG area, Patents content | Wired reports on the Forgent JPEG patent case. Created: 08/08/2002 by Mark Nelson |
| JPEG area, Patents content | The ISO committee responsible for the JPEG standard would like to track down prior art that might invalidate the Forgent patent. Created: 08/08/2002 by Mark Nelson |
| IncredibleClaims area, Patents content | The folks at Zeosync have been making some pretty bold claims regarding their yet-to-be-shown compressin tools. This patent application might open the door a bit. Created: 07/04/2002 by Mark Nelson |
| Fractal area, Patents content | One of the earliest patents regarding fractal compression. Issued 10 July 1990, assigned to Iterated Systems. Created: 24/12/2001 by Mark Nelson |
| Fractal area, Patents content | A fundamental patent for fractal image compression assigned to Iterated Systems. This patent was issued 12 November 1991. Created: 24/12/2001 by Mark Nelson |
| Fractal area, Patents content | A fractal compression patent held by Iterated Systems, Inc. This appears to be a very fundamental patent issued 13 September 1994. Created: 24/12/2001 by Mark Nelson |
| ArithmeticCoding area, Patents content | An arithmetic coding patent which appears to be currently assigned to Samsung. Created: 24/12/2001 by Mark Nelson |
| MP3 area, Patents content | This is reportedly the Fraunhofer patent covering the MP3 compression algorithm. Created: 10/06/2001 by Mark Nelson |
| Compression area, Patents content | Ross Williams has provided a list of compression patents here. Might help, although the site is a few years old and doesn't appear to have been updated recently. Created: 22/11/2000 by Mark Nelson |
| LZW area, Japanese language, Patents content, Companies content | Some information on LZW, it looks as though this has info on Licensing, but I'm not sure. All information is in Japanese. Created: 09/11/1999 by Mark Nelson |
