Image
EAN-130000000076371   EAN-13 barcode 0000000076371
UPC-A000000076371   UPC-A barcode 000000076371
Product NameLuis Tiant 2005 Sweet Spot Signatures # Lt Autographed Card
CategorySports / Exercise
Amazon.comA Buy on Amazon ~ B001HB0L6O
Created02-13-2012 4:51:08am
Modified09-05-2018 6:00:44pm
MD503da8a63f9aa2c36ef7e48323f386f9c
SHA256b834e2f19ac1ab5ffeb442c2e95c47c9f0f3a41744db09c003f0590f6e49297a
Search Googleby EAN or by Title
Query Time0.0056930

Code 128 is a high-density 1D barcode symbology. This barcode set makes use of the entire 128 ASCII characters which include letter, number and symbols.

Code 128 Barcode

As with all barcodes, there are indicators to identify where the barcode starts and stops. These are marked in yellow below. Code 128 also has a check character which has been marked in green. The remainder of the barcode is the data being encoded. The text below the barcode is optional and is for human consumption in the event the barcode can't be scanned or if people also need to know what the code means.

Code 128 Barcode

Each character in the barcode symbol is composed of three bars and three spaces. Each bar or space must range from 1-4 units and the sum of all the width of all bars must work out to an even number. The stop marker is special because it adds an extra bar of 2 units at the very end (4 bars and 3 spaces). There are three different start markers to to identify which code set is being used. To represent all 128 characters, the code sets can be within a single barcode as needed by using control characters 98-101 (depending on the code set).

The check character is calculated by summing the value of each character and multiplying it by its position. The start character is also part of the sum but is added without weight (multiply by 1 just like the first encoded data character) then when you have the sum take the modulo 103 remainder. This gets a little more complex when mixing modes within a single barcode.

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