From: Doug Sutherland (wearable_at_earthlink.net)
Date: 2001-12-02 09:14:23
Hi Jim,
> I was thinking of mentioning that this has all been invented
> and put into one chip. Tell it to read and it comes back with
> the answer without any help!
Speaking of black boxes, I am pretty blown away with Biosemi's
design of an 8-channel EEG in a 60x40x7 mm module. Two or four
modules can be coupled to make a 16 or 32 channel system with
one multiplexed output. More modules can be coupled but the
internal multiplexer can only handle up to 32 channels. I am
pretty sure we are going to see single chip EEGs on the market
within a few years.
http://www.biosemi.com/publications/artikel4.htm
The high level of integration these days is getting phenomenal.
Check out the size of U-Box GPS modules (30 mm square) and their
StrongARM modules (37 mm square)
http://www.u-blox.ch/portfolio.html
A couple of other interesting ideas for embedded EEG ...
check out this PIC microcontroller board in PC/104 format
http://www.scidyne.com/hpb7585.htm
Bolt your EEG front end onto that and plug that into any one
of these PC/104 embedded PCs
http://home.earthlink.net/~wearable/#CPU
And you have the complete EEG and PC in small package.
Check out the interesting PC/104 add-on boards
http://www.eurotech.it/main/ProductNFE.asp?SubM=Catalog&Sub2M=PC/104&Sub3M=Peripherals&Sub4M=CTR-1260&Lang=E
http://www.neuricam.com/Neuricam/Products/totem.htm
http://www.kaxillion.com/model_pc5.html
http://www.bittware.com/products/PC104/PC104.stm
http://www.neuricam.com/Neuricam/Products/totem.htm
I'm getting way ahead of myself here, but the possibilities
are interesting. Plug the EEG amp into the PC/104 board with
PIC coprocessor for A/D sampling, plug that into a pentium
CPU board for FFT/IIR/FIR analysis, then plug one of those
neural coprocessing cards into the stack for some pattern
recognition (controlling games/appliances/mice/whatever).
Data moves across the system bus (16-bit ISA or 32-bit PCI).
All of it would fit in about 4x4x3 inches. It's not exactly
a low cost EEG, but it would rival systems costing big bucks.
These coprocessing boards will plug right into my systems:
http://home.earthlink.net/~wearable/fashion-wearable.html
I have a ton of embedded links on my homepage:
http://home.earthlink.net/~wearable/
-- Doug
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The human-computer interface seems to be stuck on the
WIMP (windows, icons, menus, pointer) model. What I'd
like is to have you call me and my clothing answers.
http://home.earthlink.net/~wearable/jacket-wearable.html
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:32 BST