From: Lovass Laszlo (prochess_at_e...)
Date: 2001-05-30 11:14:36
Hi,
> Any body thought about USB connection
I have studied USB possibilities as well, conclusions in brief:
Pro:
- more bandwith than RS232. But printer port (EPP/ECP) could also be usable
in that case (maybe for faster IR connection),
- works on Mac.
Con:
- only for Windows 98/ Me / 2000,
- older PCs don't have it,
- complicated API support specs. It's a bus interface, not a simple port
connection,
- HW implementation would require special chipsets in the EEG device or even
USB-opto converter (could be expensive).
My impression about USB is that it has been developed and specified for
simple and easy use of multiple devices made by commercial mass-production.
Not only for higher speed.
Is there any sophisticated testing device for EEG, what I could call
'test-head', modelling the electric behaviour of a real head?
If not, is it worth do develop one?
E. g. it would be a creane-form object with networked resistances driven by
a special programmable generator at node points,
floating in isotonic solution inside. Plastic, conductive rubber, etc. would
model bone and skin.
This model would help to understand the relation of brain areas to potential
maps of the head skin surface.
But the primary goal of this test-head would be the possibility of complete
HW/SW testing of EEG systems.
Real brain states, artifacts and external noises could be simulated with it
and could give a good kickstart to EEG development for any needs.
Opinions?
Regards,
Lovass Laszlo
Email: prochess_at_e...
http://www.nexus.hu/lovass/
Pszichotron email-lista:
http://groups.yahoo.com/group/pszichotron
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:30 BST