Silvia Pfeiffer [mailto:[email protected]] wrote:
On Thu, Jul 16, 2009 at 9:19 AM, Chris Wilson<[email protected]> wrote:
>>...I think the reason why I mentioned that is that based on others'
>>feedback, I expect there WOULD be a suit similar to the Alcatel-Lucent
>>one, and you'll note who was sued in that one.
>
>Google, Apple, and even Mozilla can also be targets of such lawsuits -
>and Google & Mozilla have already made the step to support Ogg Theora.

As usual, IANAL TINLA.  Get your own lawyer.  I'm just trying to explain where 
my chain of reasoning comes from.

Mozilla's behind the 8-ball on video codecs - they cannot implement H.264 (or 
anything else that requires patent licensing) anyway, other than passing it 
through to the underlying OS and hoping there's a player for it (e.g. Media 
Player on Windows and Quicktime on OS X).  They have to hope that Theora has no 
IP infringement.

However, the critical point here is that patent holders go after the money - 
and the money is traced back through the chain of what an infringer is making 
off use of the patent.  Although Google has large revenues, you cannot trace 
the bulk of their revenues back to usage of the Chrome browser; so they're less 
attractive.  On the other hand, Microsoft has very large revenues, and a large 
portion of that comes from Windows, and IE is part of Windows; that's why the 
original award in the EOLAS lawsuit was such a large number, because it was 
essentially a portion of Windows revenue.  Obviously, Apple (given their 
inclusion of the browser into their flagship product operating system) would be 
another prime target.

>Presumably did their homework on the patent front to determine the
>risk. Unfortunately, it is not common for companies to publish such
>information, but instead everyone has to do their homework themselves
>and make their own informed decision. I still hope such a patent
>research could be done by W3C though.

Everyone has different motivations and culpability.  And those who are not in 
the first tier of financial targets can afford to be less concerned, I imagine. 
 :)

>... or the encoders could get adapted to work around such a patent (if
>it really existed). Since it's all built on open source, a rollout of
>such fixes would be relatively painless.

Possibly (could work around) - wouldn't know until the (hypothetical) patents 
were analyzed.  But the supposition of open source solving the rollout problem 
isn't true; open source vs. closed source is irrelevant to the rollout problem, 
it's only relevant to finding an algorithmic solution.

>> I'm not sure you could do that exhaustive a patent search, but okay.
>
>I agree - it's probably impossible to do that completely exhaustively.
>But the point here is not to be complete in everything that is
>possible in the patent space, but the issue is to reduce the risk (and
>the perceived risk).

I don't know if it's going to be possible to reduce the risk enough to make 
adding a codec with lower quality than what's already implemented there 
attractive, given where that risk bar is today.

>>>secondly - the preparation of adoption of Theora as part of a
>>>standard, and as part of that preparation there needs to be a call for
>>>any patent holders to step forward within a given time frame. If such
>>>a call was widely distributed and the distribution documented, a court
>>
>> I don't know if that would have any legal standing.  (I'm not saying it 
>> wouldn't - I'm saying I'll well out of my depth and cannot respond.)
>
>IIUC, the knowledge about the standards were a large part of what
>helped in the two cases that I cited in previous emails on this thread
>to be thrown out of court. So, I would think that such an approach
>would help courts dismiss submarine patent claims. But IANAL.

In the Alcatel-Lucent case, I thought it was just that the court decided the 
technique was not infringing, and in the other, a standards effort was 
participated in "in bad faith" or something?  I guess my point was that I'm not 
aware if you can do a "patent roll call" - I've never heard of that before.

>> Perhaps the best answer would be to mandate that any conformant UA has
>>to support either Ogg/Theora OR MP4/H.264.  At least that would mean
>>only two encodings would be necessary to get interoperability.
>
>For compatibility reasons, it would be preferable to have a single
>baseline codec, but what you are suggesting may indeed become the
>de-facto standard, just looking at the way things are going. Two
>codecs is not the end of the world though, just extra effort for
>publishers.

Yup.

-Chris



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