RE: [Algorithms] Collision detection patent

[Tom F. <to...@mu...>]

Well, the only non-trivial bits I can see (having glanced through it
briefly) are:

(1) Pick the right non-linear function for impluse response.

(2) Subdivide time when a collision happens to model it at a finer res.


I'm sure loads of people have done (1) (especially with car suspension
systems and the like), and I personally coded (2) about five years ago, and
I'm sure many others have too. Date of filing is 1998, and I suspect there
will be plenty of prior art. My guess is there will be at least three
instances within five miles of where I sit (Guildford - incestuous coding
hothouse of the UK).

Tom Forsyth - Muckyfoot bloke.
Whizzing and pasting and pooting through the day.

> -----Original Message-----
> From: Michael S. Harrison [mailto:mic...@ud...]
> Sent: 15 August 2000 19:46
> To: gda...@li...
> Subject: [Algorithms] Collision detection patent
> 
> 
> I have no idea if this is going to start an off-topic patent 
> war, but I'm interested in the reaction here on the following 
> patent.  http://www.patents.ibm.com/details?pn=US06067096__ 
> 
> I read about it in the latest Game Developer and did a bit of 
> reading through the patent claims since it appears that Mr. 
> Nagle is attempting to patent methods which have not only 
> been written about prior to his application (March, '98) but 
> actually implemented in our, and other people's engines, prior to '98.
> 
> According to GDMag, he actually intends to go after game 
> companies which infringe his patent.
> 
> Thoughts?
> 
> 
> - Michael Harrison
>   High Plains Coder, 
>   United Developers / Inertia, LLC
>   Work log @ http://lynx.inertiagames.com
> 
> 
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