JPEG

[DM McGowan II]

I've seen articles about how using JPEG can subject one to Patent violations
and that these violations are being prosecuted. If I save an image using the
..NET framework, is that subject to such prosecution?

[Cowboy \(Gregory A. Beamer\) [MVP]]

Re: JPEG

I believe the basic implementations of both JPG and GIF are covered under
MS's license. If you are merely saving images for display on your own site,
you should be covered. If you are creating commercial software, however, you
might look into securing a license for the format.

--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

*************** *************** *************** ***
Think Outside the Box!
*************** *************** *************** ***
"DM McGowan II" <nospam@nospam. net> wrote in message
news:z9mdnZ37np mHroHcRVn-jg@comcast.com. ..[color=blue]
> I've seen articles about how using JPEG can subject one to Patent[/color]
violations[color=blue]
> and that these violations are being prosecuted. If I save an image using[/color]
the[color=blue]
> .NET framework, is that subject to such prosecution?
>[/color]

[Steve McLellan]

Re: JPEG

"DM McGowan II" <nospam@nospam. net> wrote in message
news:z9mdnZ37np mHroHcRVn-jg@comcast.com. ..[color=blue]
> I've seen articles about how using JPEG can subject one to Patent[/color]
violations[color=blue]
> and that these violations are being prosecuted. If I save an image using[/color]
the[color=blue]
> .NET framework, is that subject to such prosecution?
>[/color]

The only patent infringement I'm aware of is using LWZ compression in GIF
images (Unisys owns a patent somewhere until sometime soon for it). Most
libraries specifically state that you need to procure a license to use LWZ
if you want to use it. AFAIK there are no restrictions on GIF generally, nor
JPEG. JPEG 2000 may be a different issue, but I don't think there's a .NET
codec for it anyway.

Steve

[Paul Clement]

Re: JPEG

On Fri, 13 Aug 2004 13:51:13 +0100, "Steve McLellan" <sjm.NOSPAM AT fixerlabs DOT com> wrote:

¤ "DM McGowan II" <nospam@nospam. net> wrote in message
¤ news:z9mdnZ37np mHroHcRVn-jg@comcast.com. ..
¤ > I've seen articles about how using JPEG can subject one to Patent
¤ violations
¤ > and that these violations are being prosecuted. If I save an image using
¤ the
¤ > .NET framework, is that subject to such prosecution?
¤ >
¤
¤ The only patent infringement I'm aware of is using LWZ compression in GIF
¤ images (Unisys owns a patent somewhere until sometime soon for it). Most
¤ libraries specifically state that you need to procure a license to use LWZ
¤ if you want to use it. AFAIK there are no restrictions on GIF generally, nor
¤ JPEG. JPEG 2000 may be a different issue, but I don't think there's a .NET
¤ codec for it anyway.
¤
¤ Steve
¤

The GIF patent has expired for all countries as of June. There's pending litigation on the JPG
patent. The patent expires in October 2006.


Paul ~~~ pclement@amerit ech.net
Microsoft MVP (Visual Basic)