Slashdot Mirror


Apple, Others Hit With Lawsuit On Ethernet Patents

bth nods an AppleInsider story on a patent troll who has gotten hold of fundamental Ethernet patents and is wielding them broadly. Three guesses which US Appeals Court the lawsuit was filed in. "A Texas company has targeted a number of technology companies, including Apple, in a new lawsuit regarding a handful of computer networking patents issued in the 1990s. ... 3Com Corporation was granted four patents from 1994 to 1998 pertaining to network adapters. Two deal with the automatic initiation of data transmission, and one addresses 'host indication optimization.' ... The company's Web site states that U.S. Ethernet Innovations was founded 'to continue 3Com Corporation's successful licensing program related to a portfolio of foundational patents in Ethernet technology.' A press release from the company states that it is the 'owner of the fundamental Ethernet technology developed and sold by 3Com Corporation in the 1990s,' suggesting it purchased the patents. ... In addition to Apple, the lawsuit names Acer, ASUS, Dell, Fujitsu, Gateway, Hewlett Packard, Sony, and Toshiba as defendants."

2 of 304 comments (clear)

  1. Re:Trial by jury... by rtfa-troll · · Score: 5, Interesting

    Seems to me that asking for a trial by jury may very well backfire on them.

    Most likely not. Juries are not likely to be very technically apt. It's almost certain that they will ask "have you ever used ethernet" during jury selection and avoid those people who know that they have.

    After that everyone will realise why it's called "intellectual property" by the fraudsters who run our legal systems. The way it's presented the patent makes this patent someone's possession. The jury just thinks "I wouldn't like it if someone took my car away from me; they should be going to prison and not just paying a fine". The compensation ends up massive.

    The problem is that all these companies have set themselves up as fall guys since they all have legal departments which spout off about "respecting intellectual property". They can't even use the argument that there is no such thing because their own press releases would be used against them.

    finally; blaming the patent troll is a bit stupid. They are an inevitable part of a system which tries to treat ideas like property. There are two groups available here to blame. Those that set the laws take most of the blame and the IEEE where 3COM was a member at the time the standard was set should take the rest. Organisations involved in standardisation should be required to defend the free use of a standard with all their patents.

    --
    =~ s,(.*),<sarcasm>$1</sarcasm>,g if any_point_you_wish();
  2. ironically DMA mode on 3Com's never worked by Anonymous Coward · · Score: 5, Interesting

    From 1994 to 1997 I worked for a company that worked with 3Com writing device drivers for the 3Com adapters that seem to be based on these DMA patents. My vague recollection is that we spent at least 2 years working with at least 3 different versions of 3Com's EISA and PCI ethernet adapters and as far as I know the full DMA mode never worked 100% correctly on any of them. The different versions of their controllers had different bugs. Some would lockup, some would drop interrupts, or randomly stop DMA mode, or corrupt buffers, etc. I think in most cases the workaround suggestion from 3Com was to periodically poll the adapter status and if you detect it's wedged force a full reset and completely reinitialize the adapter. Of course doing stuff like that totally destroys system performance so we simply ignored the DMA capabilities and did PIO in the interrupt handlers to transfer packets to/from the adapters 1-2K buffers (one packet per interrupt). I might be wrong but I think it was at least 1998 and their 4th generation PCI-ethernet adapter before 3Com had a PCI-ethernet design that did DMA to/from ring buffers correctly and by that time the rest of the world was all shipping products based on $10 dnet-clones from 6 or 7 companies in Taiwan (and 3Com's design had morphed into a something that looked a lot like dnet-clone but with a lot of extra, useless features).