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From: unbent@ecsvax.UUCP
Newsgroups: net.general,net.micro
Subject: Info about UPC variant E (zero-suppression) barcodes wanted
Message-ID: <2589@ecsvax.UUCP>
Date: Sat, 26-May-84 11:23:34 EDT
Article-I.D.: ecsvax.2589
Posted: Sat May 26 11:23:34 1984
Date-Received: Mon, 28-May-84 06:12:10 EDT
Lines: 16

==>
	Anyone out there happen to know the conventions for the UPC Variant
E (zero-suppression) barcodes?  I'm helping a friend adapt his TRS Model 100
barcode reader to handle alternatives to the UPC Variant A that it comes
programmed to read.  We've gotten to the point where we can read the
individual digits whether they're coded normally or in zero-suppression mode
(which turns out to be the reverse of normal), and we know the polynomial
which generates the check values for the lookup table.  What we don't
know--and can't figure out--is WHERE TO PUT (BACK) THE (SUPPRESSED) ZEROS.
Any help would be much appreciated!


Yours for clearer concepts,       --Jay Rosenberg
				    Dept. of Philosophy
...mcnc!ecsvax!unbent		    Univ. of North Carolina
				    Chapel Hill, NC  27514