JPEG Committee On The Ball, Seeks Prior Art 219
Sangui5 writes: "It seems as if the JPEG Committee has noticed the recent patent fuss, and is working on the prior art angle. Good to know that even though there's a new standard, the committee is standing by their previous work."
Not reading the article, eh? (Score:5, Informative)
Re:Jpeg (Score:2, Informative)
Re:Jpeg (Score:1, Informative)
PNG is lossless, yes. But, for small monotone colors (the kind used here on
Re:The role of standards bodies (Score:4, Informative)
Why would they? When you're doing something like this, open source people don't have cash to pony up, and help keep people dependent on the technology in question.
Re:Jpeg (Score:2, Informative)
Re:Isn't JPEG just a FFT? (Score:3, Informative)
The patent process needs good prior art databases (Score:3, Informative)
To see why, consider the standard process for creating a patent in a large company:
The most obvious (and easy) database is the existing patents DB. Now, I'm sure they have other databases they use, but whenever I've been through the process, nearly all the potential prior art which has been returned to me via the patent agent has been previously published patents. So if an idea hasn't been patented before, then it's got a good chance of getting accepted as a new patent.
So if the JPEG group build an extensive, easily searchable catalogue of prior art (with times, keywords, etc.), then it will make the patent agents life a lot easier, thus increasing the quality of patents.
Re:Jpeg (Score:2, Informative)
Gifs are lossless. Just because you can't use more than 256 colors, doesn't mean the format is lossy. And Gifs don't have an alpha channel, per se, you can just define one of the 256 colors as being completely transparent or not.
Re:Good! (Score:5, Informative)
The only recent time Philips has got upset with the RIAA was when they weren't sticking to the Redbook standard [slashdot.org]!
Re:It'll Expire Next Year (Score:5, Informative)
Patents files on or after June 8 1995 are 20 years from date of filing; before that, patents were from date of issue, not of filing, and their term was 7 or 14 years, and grew to 17. One of the reasons for the change to a 20 year term was the move to date of filing as the baseline date.
Either way, it's too damn long a period for this industry.
-- Terry
Re:Prior Art? (Score:2, Informative)
Check her out here [homestead.com]. (Nope, not nude.)
Nope (Score:5, Informative)
The big difference here is that Rambus was a member of the standards body in question (JEDEC). The agreement they signed to become a member of this standards body obligated them to disclose patents. They didn't and thus violated a contract.
As far as I can tell, Forgent is not a member of the JPEG organization, nor did they ever propose to the JPEG body that they adopt their IP as a standard.
The two situations may look similar on the surface, but that is where the similarities end.
Re:Jpeg (Score:2, Informative)
GIF only appears lossy because what you're compressing with it requires more colours than it can provide. The GIF format itself uses only lossless compression.
Re:Does JPEG 2000 have an open license? (Score:3, Informative)
which are owned by companies that take part in JPEG.[1]
And mentions some nice licensing guidelines: But earlier on Slashdot in Slashback: Alternatives, Ads, Apple [slashdot.org] A discussion regarding the licensing scheme to Jpeg2000 pointed to it (the license) being open. Can anyone verify that Jpeg2000 has an unencumbering license?
I doubt that Forgent have read through the patent (Score:1, Informative)
Sorta like Unisys (Score:3, Informative)
It wasn't too much later that slashdot came around and posted a link to http://burnallgifs.org/. I wonder how long it will be until they post a link to http://burnalljpegs.org/.
Re:Uh-oh: time running out? (Score:3, Informative)
Whether Phillips holds a patent or not is irrelevant.
The reason Phillips (rightly) got upset is because the offending companies were still using the CD-logo, which is trademarked by Phillips.
Trademarks don't expire, as long as the company that holds them continues to pay for and police them.
Trademarks vs. Patents (Score:2, Informative)
If a patent holder is aware of infringing activity and doesn't do anything about it for a period of time (six years in the United States) then the infringer is not liable for damages.
However, unlike a trademark, a patent does not lapse without enforcement. As soon as the patent holder does get around to notifying the infringing party, then they can start claiming damages from that point on.
In other words, they can't sue every instance of 'infringement' that took place over the last fifteen years--they have forfeited that right. They may, however, demand royalties for further uses of JPEG compression. Assuming, of course, that their patent does cover the method in question, and that it holds up in court, and no prior art is found, and so forth...
IANAL, YMMV.
Re:Something I don't get. (Score:1, Informative)
Basically, if an infringing company has publicly used a technology for (+-) 6 years and the infringed party does not give notice of infringement, then they are restricted from receiving royalties that accrue prior to the notice of infringement. This is not a hard rule as the infringed may show good reason why they did not give notice in this time frame:
http://www.converium.com/web/converium/converiu
There is also a current ruling that sided against undue stalling in the process of patent prosecution (the process of filing and obtaining patent and possible related divisional and/or continuation patents):
http://www.kenyon.com/symbol.htm
There are also other antitrust implications related to set standards and patents, but these implications do not preclude one from holding a patent on a "standardized" technology.
Re:Nope (Score:5, Informative)
The last time Forgent's patent (actually Concurrent Labs) was discussed, one poster said that he had been involved with JPEG, and Concurrent Labs was a member in 1992-95 (IIRC). This patent was granted several years before CL joined JPEG. All the members, including CL, signed agreements to reveal all patents and applications related to the standards under discussion. CL never brought up this patent. This means one of three things:
1) CL was in breach of their contract with the JPEG organization.
2) CL reviewed this patent vs. JPEG's compression methods and decided it did not cover JPEG, so it didn't have to be brought up.
3) The left hand didn't know what the right hand was doing - that is, their still-picture people on the JPEG project didn't even know about the video compression patent.
When Forgent bought CL, they bought up their liabilities along with their assets. So they had better be arguing #3, because #2 is an admission that their suit is groundless as far as anything in the JPEG standard before 1995 goes, while with #1 JPEG can sue to be "made whole" by requiring Forgent to license it's patent(s) for free for JPEG applications. And I doubt that CL was ever big enough to make #3 very believable...
Re:Besides the obligitory "Forgent-ery" joke... (Score:3, Informative)
The steps applied to the delta are the core of the JPEG compression. However, they are not mentioned in the list of claims in the patent! Further, the patent itself points out prior art on the use of DCT quantization.
Basically, there is no way for this claim to stand, especially when it affects far too many people with deep pockets (possibly more important than the technical points).