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  • Bijective BWT (6 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (113 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files (3 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring

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  • China’s AVS Specifications Available (2 Comments)

    Its old news that China has developed their own Advanced Video Standard to avoid high licensing fees. English translation of the standard is now available, along with the IPR policy. Finally something technical that you can get your hands on to feed your appetite.

White Knight Charges Forgent

Posted by Mark Nelson on 16th November 2005 | Permanent Link

I’d never heard of the Public Patent Foundation (PUBPAT), but now I see that they are taking on Forgent and their ‘672 patent. PUBPAT claims they have prior art that invalidates the original Compression Labs patent.

This would be good news indeed, and published prior art is apparently what is going to be required to beat this one. The press release doesn’t say what the prior art is, unfortunately, but they do give a cogent explanation of why they are tackling the case:

“CLI is using the ‘672 patent to harass anyone that implements the Joint Photographic Experts Group (’JPEG’) format,” states PUBPAT’s Request for Ex Parte Reexamination of U.S. Patent No. 4,698,672. “CLI’s aggressive assertion of the ‘672 patent is causing substantial public harm by threatening this international standard on which the public relies.”

I won’t use this forum as a bully pulpit to fight software patents, but the ‘672 is a classic example of a problem with the system. Despite the fact that international standards bodies clear patent issues with all parties involved in the process, a maverick patent holder can emerge at any time and begin asserting rights over a technology. My guess is that Forgent has cleared close to 8 figures in US dollars on this so far. I would rather see those millions go to people who are making and selling products that use compression technology, as opposed to a company that produces nothing but lawsuits.

11 Responses to “White Knight Charges Forgent”

  1. Sachin Garg Says:

    Many big companies are already fighting against Forgent’s patent, some have even given up. Now that PUBPAT has found some prior art, this definitely is good news.

    You can check here for PUBPAT’s original application and check this for more stories on Forgent.

  2. Bob M Says:

    Does anyone knows what prior art they are talking about?

  3. Heliologue Says:

    We’ll just have to wait and see. I would love to see Forgent go the way of SCO. Hopefully some more big names start fighting.

  4. Chisum Says:

    Forgent cleared 8 figures ($10,000,000) against one manufacturer alone. They are likely well over 9 figures with this by now. They are the new Lemelson.

    There are several good essays on why this is happening in the software industry. The best exlpanation is that for the first 20-30 years of software development there was no patent protection for software, so there is not much documentation of what was being done. Everybody relied on trade secret protection and kept everything secret. Now, people are able to get patents on ideas they think are new, but really are just not well documented. The only silver lining is that current developments are very well documentes, so this phase can be outgrown eventually.

  5. Mark Says:

    I got my orders of magnitude a little mixed up - I was thinking 8 figures = 10^8. Classic fencepost error, mea culpa.

  6. S Says:

    9 figures confirmed.

    From Forgent’s own web site:

    http://www.corporate-ir.net/ireye/ir_site.zhtml?ticker=forg&script=410&layout=-6&item_id=812280

    “Since its inception more than three years ago, Forgent’s intellectual property program has generated more than $105 million in revenues primarily from licensing the ‘672 Patent to more than 50 different companies in Asia, Europe and the United States.”

  7. c10n.info Says:

    The US Patent Office has granted the Public Patent Foundation’s request for a reexamination of the patent.

  8. loki Says:

    to bad everyone that already paid them doesn’t get their money back…

  9. Mattias Says:

    It seems that the Prior art climed is actually earlier patents from the original holder of the patent, Compression Labs Inc. PUBPAT claims that the ‘672 patent is an obvious derivate of these earlier patents.

    Read more here in the request for reexamination:
    http://www.pubpat.org/Chen_‘672_Reexam_Request.pdf

  10. Mattias Says:

    If the link above did not work, use the one on this page.

    http://www.pubpat.org/Protecting.htm

    The link is called “PUBPAT’s Request for Reexamination of JPEG Patent (PDF; 238KB)”

  11. anon Says:

    Patent # 4,698,672 issued on October 6, 1987. Since this is a pre-gatt patent, the patent is valid for 17 years from the date it issues. 1987 + 17 = 2004.

    The patent EXPIRED on October 6, 2004. That means it became PUBLIC DOMAIN on that date.

    So why all the fuss, it’s gone, done for, over with. Anyone can use the invention disclosed in the patent without paying anyone else any money at all.

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