Alt-BEAM Archive

Message #06001



To: beam@sgiblab.sgi.com
From: Dave Hrynkiw dave@solarbotics.com
Date: Wed, 08 Sep 1999 21:27:06 -0600
Subject: [alt-beam] Re: ground?


At 08:36 PM 9/8/99 , Bumper314@aol.com wrote:
>hello...i was wondering if anyone knows the difference between digital
>ground, auido ground, and ground? thanks

That's a pretty general question. I imagine that this is in reference to a
sound card?

General question --> general answer.

Usually, ground is ground is ground, no matter what the carrier signal.

Regards,
Dave
---------------------------------------------------------------
"Um, no - that's H,R,Y,N,K,I,W. No, not K,I,U,U, K,I,_W_. Yes,
that's right. Yes, I know it looks like "HOCKYRINK." Yup, only
2 vowels. Pronounciation? _SMITH_".
http://www.solarbotics.com



6002 Thu, 9 Sep 1999 09:52:21 +0800 Re: anuther obsticle avoider thingy George Rix
> Alternately you could have it point down at an angle so that when it's on
> solid ground your IR PDs get the signal, but when it's about to step off a
> cliff, it says Hey! and switches from normal walking to reverse.
> Any thoughts (and I forgot to slap you over the head)
> Signing off,
> Rob Rix
>
> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> Life is like the theatre, but it's lucky anyone can survive with everyone
> ad-libbing their lines and the occasional gunfight.
>
> ----------
> >From: SG
> >To: beam@sgiblab.sgi.com
> >Subject: anuther obsticle avoider thingy
> >Date: Thu, Aug 19, 1999, 11:06 PM
> >
>
> > so, beam is shot out at an angle, wall or object bends the
> > angle to hit the detector.
> > (now why didn't i just say that to start with?)
> > angle and detector can be adjusted to determine distance
> > that obsticle is to be avoided.
> > I'm not sure, but i don't think the surface to be avoided
> > needs to be THAT reflective either... but probaly depends
> > on the IR beam. (ya know those little keychain laser pointers
> > come to mind! ...but thats not IR now, is it?) i dunno.
> > thats for the techno gurus to figure out.

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