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Apple Patent Blocking PNG Development 357

Daniel writes: "Apple has a patent (U.S. Patent No. 5,379,129) on compositing a source and destination image using a mask image. This patent appears to read on alpha channel transparency, which the PNG and MNG file formats use. APPLE has declared in their patent statement to the Scalable Vector Graphics Working Group that their patent is only available for RAND Licensing. Since this patent appears to read on the PNG file format, Apple is hampering work on the PNG and MNG file formats. Perhaps Apple would like to clarify this situation by explicitly stating that this patent does not cover the PNG and MNG file formats or by RF Licensing their patent to the PNG and MNG development groups. Alternatively, the PNG and MNG developers are asking people to submit prior art in order to invalidate Apple's patent. SGI in particular appears to have prior art with their 'blendfunction.' Make sure the prior art you submit is older than May 08, 1992, the filing date of Apple's patent."
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Apple Patent Blocking PNG Development

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  • what if (Score:2, Insightful)

    by fishebulb ( 257214 ) on Friday November 16, 2001 @02:11AM (#2573386)
    the hypocrisy around here getting irritating. Since it was apple doing it, they are asked to explain their actions. Anyone else (read microsoft) would do something like this, there would be outrage.
  • Re:Hmmm (Score:5, Insightful)

    by melquiades ( 314628 ) on Friday November 16, 2001 @02:12AM (#2573391) Homepage
    Keep in mind:
    • They are a company; their business is making money, not being cool (except to the extend that being cool helps business).
    • They are publicly traded, so they have a legal obligation to their stockholders to do their best to make money, even at the expense of being cool.
    • Making money means pursuing every strategy available to them to its fullest extent, and taking advantage of whatever the law, the world, and circumstance gives them.
    • Sometimes this means doing cool things, like open-sourcing the core of their new OS.
    • Sometimes the means doing crappy things, like abusing an overinflated body of intellectual property law.
    Of course, if they really do put the brakes on PNG (and let's wait to hear all sides of the story), and if that hurts their business (e.g. it hurts their good standing with their customers and developers), they won't do it. So maybe sending them a polite but firm e-mail asking for an explanation isn't a bad idea.
  • FUD? (Score:5, Insightful)

    by crayz ( 1056 ) on Friday November 16, 2001 @02:14AM (#2573398) Homepage
    Has Apple actually made any threats on this, or did someone just find this statement and see it as a possible precursor to a threat?

    PNG has been around for a while now, and Apple has never(AFAIK) said anything about it in the past. I really don't see how this changes anything.

    Now we're gonna get all these slashbots telling us how Apple is evil and everyone should boycott OS X/Darwin because of this, when they really haven't done anything. Chicken Little ought not be the standard tone of every Slashdot story.
  • by burtonator ( 70115 ) on Friday November 16, 2001 @02:29AM (#2573438)
    Apple has demonstrated severe bad faith towards the Open Source and Free Software communties.

    What do we do about it? Nothing. In fact a lot of us contribute to Apple. Hint. Stop posting
    Apple press releases on slashdot. :)

    Here is a good example from on of my .sigs


    [slashdot.org]
    Apple Threatens Open Source Theme Project



    [slashdot.org]
    Apple moves to again to squash look-alikes.



    [slashdot.org]
    Themes removed at Apples behest.



    [slashdot.org]
    Apple Advertises '1-click' licensing.



    [slashdot.org]
    Apple sues to stop leaks.


    This type of behavior needs to stop. Now. Think different. Indeed!

    I know that a lot of people here are excited about Apple's use of Darwin/*BSD in MacOSX. I think this is invalid. Apple couldn't build their own OS so they use choose *BSD to gain market share.

    There really isn't anything wrong with this. It was a logical decision on their part. I just wanted to point out that this in NO way invalidates there bad, unfair, and rude behavior.

    ...Remember that corporations are amoral. Not moral or immoral but amoral. They logically determine how to make the most money. They make decisionswithout regard to compassion or ethics, much like a computer.

    This explains the BSD decision but this also explains the RAND decision.

    Unless we stand up an say NO this behavior will continue.

    Peace.

    Kevin

  • Re:what if (Score:2, Insightful)

    by fossa ( 212602 ) <pat7@gmx. n e t> on Friday November 16, 2001 @02:38AM (#2573453) Journal

    There are like 20 comments at this point. It is clear there is no outrage. Why didn't I notice this earlier?

    I for one am extremely outraged. I'm sick of this shit. I'm sick of being pushed around by corps. Might makes right. It sickens me that I cannot in good faith buy from virtually any company. I don't want my money paying for this bullying. This ranting does nothing though. Apple's betting most people won't care and they're probably right. Heck how many people have the balls to even boycott RIAA member record companies? How many people have the balls to reject bullshit dvd's? Not that boycotting them makes any difference whatsoever. But how much of your money has gone toward buying politians? How much has gone toward bullying PNG? Some of the money is mine. It makes me sick. I buy this shit anymore. Even one of my favorite bands, the anti-establishment, anti-big record comany, anti-MTV NOFX, has a lead singer who started an RIAA member record company. How can I justify purchasing from them any longer? Thank you. I'll go back to my cave now.

  • Re:what if (Score:4, Insightful)

    by Graff ( 532189 ) on Friday November 16, 2001 @03:00AM (#2573496)

    Have you read this [w3.org] linked page? Have you read any statements made by Apple that they are using this patent to prevent you from using the PNG format?

    If you look at that page, you will see that Apple does offer a license for the patent as part of the SVG 1.0 patent which is being put together. It looks like they are just being cautious in order to keep their rights to the patent intact, but still allow it to be used for PNG and SVG.There are plenty of greedy corporations out there and Apple may in fact be one, but don't assume they are without looking at all the facts. Take a look at the sites listed in this article, write to Apple and ask questions, express your thoughts to Apple. If you are not then satisfied with what you see then you can make as much noise about it as you want. Making a big deal about this just because someone has implied wrongdoing on Apple's part is just being a follower.

  • by 90XDoubleSide ( 522791 ) <ninetyxdoubleside@hailmail . n et> on Friday November 16, 2001 @03:07AM (#2573510)
    Most of your points have nothing to do with OSS, or are weak. Apple Threatens Open Source Theme Project I agree was bad, but in Apple moves to again to squash look-alikes. Apple threatened a commercial Windows company that hosted a theme that copied Aqua graphics, and I support that. Themes removed at Apples behest., same deal with copied themes hosted on another site. I can understand contention when we start to talk about themes inspired by Aqua, but with complete ripoffs like this I think Apple should take action.

    Apple Advertises '1-click' licensing. goes more toward proving amazon.com suckered them than showing evil on their part, and on Apple sues to stop leaks. I emphatically support their action, although you probably didn't get the complete story unless you read some real news on it. Apple tracked down and stopped a leak in their R&D division. He was trying to be harmless, releasing roadmaps and product details to Mac rumor sites, but his actions certainly gave Apple a huge disadvantage and lost them money. All they did was get him to agree to stop, even though they certainly could have won monetary damages. How can you oppose that?

    "...a lot of us contribute to Apple. Hint. Stop posting Apple press releases on slashdot. :)" Oh yes, Apple would be davasted if /. stopped doing mostly misinformed and negative reports on their products. "Think different. Indeed!" Interesting since half your complaints had to do with people "Thinking Same." "Apple couldn't build their own OS so they use choose *BSD to gain market share." Apple can't make their own OS, eh? Actually they scrapped years of work to go with the BSD core, and they managed to put an interface on it better by orders of magnitude than anything yet available for an OSS OS, not to bash OSS OSs of course, just saying UI and setup is their big weak point in the desktop world currently. But I'm pretty sure everyone already realizes that "Apple couldn't build their own OS" was a troll.

  • by dvdeug ( 5033 ) <dvdeug&email,ro> on Friday November 16, 2001 @03:43AM (#2573557)
    > It seems un-American, bordering on the Communist to suggest that Apple should simply give away their intellectual property.

    Ignoring the whole "give away" and "intellectual property" parts of it, I'll point out that they aren't being asked to give away anything. They're being asked to stop trying to take something that doesn't belong to them. The idea was not their's, nor was it or its use exclusive to them. The purpose of patents was to encourage ideas, not direct money to big buisness who can afford to file dozens of supirious patents.
  • by jeffmock ( 188913 ) on Friday November 16, 2001 @04:01AM (#2573584)
    You know the funny thing. Porter and Duff still work for Pixar and share the same CEO as Apple...

    I think the Porter/Duff paper is the last word on compositing.

    jeff
  • Dead Obvious? (Score:2, Insightful)

    by Tsar cr0bar ( 310803 ) on Friday November 16, 2001 @04:11AM (#2573606) Homepage
    You would think so, yet here we are. This is the crux of the current distaste for many patents.
  • by jimbublitz ( 458954 ) on Friday November 16, 2001 @04:16AM (#2573610)
    The Constitutional purpose of patents is not to make money but to promote progress in science and the useful arts. Patenting the trivial or obvious or patenting prior art (this one seems to include both cases) is detrimental to progress in science or any other field.

    Patenting things which are prior art is also detrimental to capitalism, since it increases the risk of lawsuits if not actual damages and limits genuine innovation. *Bogus* patents are antithetical to "making money" in both the short and long term, unless you're a lawyer. They're no different than the mob's "protection" rackets.
  • by wray ( 59341 ) on Friday November 16, 2001 @04:20AM (#2573617)
    I posted this before as AC, but since it didn't get any points, I thought no one would see it, and I _do_ think it might help.

    Actually, Alvy Ray Smith with Ed Catmull created an alpha compositing system in 1978 while Ed Catmull was doing a paper for SIGGRAPH '78.

    He states this in his paper "Alpha and the History of Digital Compositing" in August 1995.

    He says that his earliest dated documentation he has for that code is dated January 13, 1978. He specifically showed compositing an alpha image on a background which should just be like another image. I hope this helps
  • by poemofatic ( 322501 ) on Friday November 16, 2001 @04:22AM (#2573620)
    is truly an American:

    It seems un-American, bordering on the Communist to suggest that Apple should simply give away their intellectual property.

    <aside> What the do you mean, exactly, by "un-American" -- "doubleplus ungood"? or is it closer to "un-Italian"?
    Were Helen Keller and Jack London un-American because they were socialists? </aside>

    Did you ever stop to think that patents are a way for companies to avoid competition? To keep out the little guy?

    Many companies have decided that instead of competing on price and quality, they would rather go to the govt. and get an exclusive monopoly to use a certain technology. Because the pace of change in the tech field is so rapid, patents are effectively eternal. And when people criticize this, because they want to see competing products in the marketplace, you call them communists?

  • by AbsoluteRelativity ( 524386 ) on Friday November 16, 2001 @05:31AM (#2573700) Homepage
    Its a standard which covers a format structure which allows encoding and decoding mechanisms to act on it. It is not an encoding or decoding mechanism itself, but may or may not have requirements for those encoding and decoding mechanisms in order to be official called an PNG decoder. But its the mechanism itself that the patent would apply to. Just as its okay to have gif images, but its the mechanisms to which the compression patent would apply to that would cause the problem.

    If no one implemented alpha channels in PNG, it would not be an issue, even though PNG is capable of storing them, and it would look bad. Several other formats implement alpha channels, and so this does not apply to them directly either, only to the mechanisms which use it to do *compositing*.
  • by Paul Johnson ( 33553 ) on Friday November 16, 2001 @05:42AM (#2573713) Homepage
    Bear in mind that you can invalidate some claims but not others. So for example one of the claims is:


    7. A method as in claim 1 wherein said method produces anti-aliased text in said destination image by performing the method with the
    source image being a pattern and the mask image being anti-aliased text.


    (Claim 1 is the basic alpha-transparency concept).


    Suppose that someone comes up with prior art that invalidates claim 1. Apple can still claim rights over the use of this technique for anti-aliased text unless someone can show prior art which covers that specific application. So don't just look for prior descriptions of alpha-transparency: look for prior use of alpha transparency for text, and anything else in the claims.


    Paul.

  • Re:FUD? (Score:2, Insightful)

    by paulwomack ( 163598 ) on Friday November 16, 2001 @05:46AM (#2573720)
    >> PNG has been around for a while now, and Apple has never(AFAIK) said anything about it in the past.

    Correct me if I'm wrong (hint: I don't think I am), but wouldn't that statement have applied to GIF/UNISYS?

    BugBear.

  • by Per Abrahamsen ( 1397 ) on Friday November 16, 2001 @07:06AM (#2573828) Homepage
    Have we already forgot the GIF fiasco?

    It was well known that de-facto standard for file compression in the net, "compress", was covered by the Unisys compression patent. However, showed no interest in enforcing the patent outside hardware (modems and the like), and would informally tell people who asked that.

    Nonetheless the FSF insisted on having a patent free compression format for use by GNU, and eventually settled on gzip. This made some people angry, it was annoying to have to deal with a new compression format, and they claimed the FSF was seeing ghosts and that Unisys would never change their policy.

    However, as we all know, Unisys *did* change their policy, allthough the target wasn't compress (which meanwhile had lost most of its markedshare to gzip), but GIF which used the same algorithm internally, and had become a big thing thanks to the WWW. Thankfully, at that time we had gzip, and could create PNG fast using the same code.

    The morale "they haven't enforced the patent yet" provide false security. Companies don't enforce software patents until it become economically profitable to do so, typically when the algorithm is in so common use that it will be expensive to switch to an alternative. What we need is a legally binding promise not to enforce the patent.
  • Re:1992? (Score:3, Insightful)

    by DrSpin ( 524593 ) on Friday November 16, 2001 @07:29AM (#2573857)
    Don't worry, this was well known technology long before 1990.

    This patent is only good for toilet paper.

    Patents are granted by the patent office. They are not Valid until tested in a law court. It is not the patent office's job to determine whether there is prior art. If they know there is, then they will not grant the patent. If they are not certain then they will grant and wait for someone else to challenge (no sense in wasting taxpayer's money).

    As others have said, Apple have to maximise the shareholder value or the directors might go to jail. So even if they are certain that there is prior art, they will still file a patent - after all, it may be that no one bothers to challenge. Then, when it turns out Apple accidentally infringes some other, equally worthless, patent, they can do a mutual exchange. The shareholders will be impressed, and the potential for lawsuits reduced.

    This is considered sound business practice in the USA.

    It may be seen in a different light by the rest of the world, but WTF.

  • Really? (Score:3, Insightful)

    by overunderunderdone ( 521462 ) on Friday November 16, 2001 @10:59AM (#2574424)
    Alpha compositing is dead obvious to even the most naive thinker

    This argument is raised every time there is a patent dispute discussed on slashdot yet I'm always a little uncomfortable with it. We say something is "obvious" but we say so many years after it was invented (perhaps) and patented; years during which we have used it and become familiar with the concept. Was it really obvious when it was developed and patented or has it only become "obvious" because of it's subsequent widespread use and our consequent familialarity with the concepts involved?

    In this particular case I suspect that the concept was indeed obvious by 1992 when the patent was issued - that seems pretty late in the game for such a basic concept in computer graphics. If it was obvious it won't be hard to find prior art. But in general we should recognise that concepts that are obvious to us now after long use were often breakthrough innovations obvious to no one when they were first developed.
  • They didn't look over "compress" because gzip had more market share. Relatively speaking, it didn't, since compress was still included in EVERY non-free unix distribution around, whether BSD or SYSV based. The problem was that compress was such a small, insignificant part of a Unix distribution that they couldn't get a dime out of it. The support of GIF and TIFF files, on the other hand, is a MAJOR component of most image processing programs, particularly after the web and how the early browsers had settled on GIF a sa standard.

    One must remember that the percentage of sales a patent is good for in royalities is directly related to how important the patented technology is to the application using the technology.

  • by Melantha_Bacchae ( 232402 ) on Friday November 16, 2001 @02:49PM (#2575699)
    Oh, the horror! The unethical behaviour!

    (Of course, it is perfectly legal to take out a patent, but don't let that stop you from throwing a tizzy fit. ;)

    Yes I know, slashdotters view software patents like Microsoft views the GPL (of course Microsoft is wrong, but that doesn't stop them either). But before the Great Slashdot Hornet Swarm decends en masse on poor Apple, I'd like to point a few things out:

    1) The patent dates back to 1992. According to O'Reilly's "Web Design in a Nutshell", PNG only dates back to January-February 1995. You'd think that if someone was starting a new graphics file format on which the future of the web depended, they'd check around for patents they might be violating first. Seems like common sense to me, especially since they are billing the format as "patent free".

    2) None of the links in the parent posting pointed to anything that explicitly stated that Apple was refusing to license its patented technology to PNG or sending them cease and desist orders. I could not find anything on Google or on Apple's web site to support this. What I did find was this statement at "http://www.apple.com/about/w3c/" (part of Apple's statement in support of royalty free W3C standards:

    "While the current draft patent policy does state a "preference" for
    royalty-free standards, the ready availability of a RAND option
    presents too easy an alternative for owners of intellectual property
    who may seek to use the standardization process to control access to
    fundamental Web standards. A mandatory royalty-free requirement for
    all adopted standards will avoid this result."

    One of the links on the Slashdot parent post did refer to lots of companies getting royalty free licensing for this patent. So all the PNG folks need to do, if they haven't already, is ask Apple nicely for their royalty free licensing option, since they are a web file format. End of problem.

    3) I know you all really, really hate Apple. But if you are going to make them look evil, you are going to have to try a lot harder next time. ;)

    On December 14, 1996, Mothra resurrected an Apple tree.
    In 28 days, she will return to see its fruit:
    OS X, the Apple of Mothra's Aqua eye.
  • by J. Random Software ( 11097 ) on Saturday November 17, 2001 @05:02AM (#2577898)
    It's impossible, even in principle, to be certain no US patent applies to technology you're using. The patent database is a mountain of gibberish (just reading them is a skill ordinary developers don't have), and nobody can afford to keep doing searches so thorough they'll definitely find every relevant one. But even if you could, you wouldn't be allowed to see the pending applications that might be approved years later.

Software production is assumed to be a line function, but it is run like a staff function. -- Paul Licker

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