Invisible schrieb:

> OK, so I now have several sheets of barcode labels.
> 
> What I can't figure out is which symbiology they use. Consider, for 
> example, the label for "UKM11001L3". If 1=black and 0=white, we have
> 
> [...000]101101101001010101001101101100101011010110101001011010
> 11011001010101101100101011010100101101101010010110100101011
> 011011001010101101101010100110101101101001[000...]
> 
> This doesn't seem to match anything Wolfram Alpha can come up with:
> 
> http://www.wolframalpha.com/input/?i=barcode+UKM11001L3
> 
> None of these barcodes start with the distinctive two thin bars framing 
> two thick bars ("...01011011010..."). I have no idea what barcode type 
> this is...

Now if you think that those three barcodes on the Wolfram page are all 
the world has to offer...

http://www.herdsoft.com/ti/davinci4/examples/barcodecgi.cgi is convinced 
that it is a "Code 39" (aka "Code 3 of 9") barcode, and indeed correctly 
reads it as "UKM11001L3".

Closer analysis of your barcode pattern shows that your barcode indeed 
appears to be Code 39, but flipped horizontally for some reason (which 
of course should not matter to a barcode reader).

BTW, Wolfram is doing a poor job at generating Code 39 barcodes, as it 
uses different bar widths for the "frame" than for the "payload".

(The Code 39 frame is usually interpreted as a leading and trailing 
asterisk (*) character, as it uses the same bar sequence.)

Post a reply to this message