ITAR and Paper ROM

>Given that high-density inkjet printers can do 600x600 dpi resolution, it
>should be possible to achieve the equivalent of 100x100 bpi of
>easily-recoverable data on ordinary paper.  That's about 800 kilobits, or
>100 kilobytes.   What does ITAR say about this?
>
>
>Jim Bell
>jimbell@pacifier.com

I'm not sure if what I did in the 80s, trying to create what I called
'paper ROM, is applicable.  In these investigations I used matricies of
small (1-3 mm) squares of gray (16 levels) or color (64 levels) with a mind
to replace diskettes for inexpensive mass data distribution.  I was able to
reliably get 100-200 KB/page side using standard offset printing.  With
modern ink-jet/laser printers you should be able to reliably get at least
10-50KB/page side. Although a technical success, I abandoned the effort
when I discovered someone had patented (4,488,679) something similar a few
years earlier.

-- Steve

At 09:26 AM 2/5/97 -0800, Steve Schear wrote:
>I'm not sure if what I did in the 80s, trying to create what I called
>'paper ROM, is applicable. [....]
>to replace diskettes for inexpensive mass data distribution.  
> Although a technical success, I abandoned the effort
>when I discovered someone had patented (4,488,679) something similar a 
>few years earlier.

Yeah, our patent office is so helpful - granting a patent for
	"Storage of Information By Making Marks On Paper" :-)
You'd think they'd recognize a few thousand years of prior art.....

Xerox also has a similar patent; their method uses little diagonals
to encode data in. ///\\\///  It really _isn't_ called "cuneform".

More practically, sort of, there was the Cauzin Softstrip Reader,
which cost about $200 and held enough data to distribute programs
back when computers and programs were much smaller; a few PC magazines
tried distributing programs by printing them in the back that way.
Cute, but not cute enough to stick around very long.


#			Thanks;  Bill
# Bill Stewart, +1-415-442-2215 stewarts@ix.netcom.com
# You can get PGP outside the US at ftp.ox.ac.uk/pub/crypto/pgp
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