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Two out of every five bars or spaces are wide, giving the name "2 of 5", and each pair has a consistent width. The wide lines form a two-out-of-five code with consecutive values of 1, 2, 4, 7, and 0, where the code 0 is assigned to the value of 11. This is similar to the POSTNET bar code. Digits 01 23 45 67 89 encoded in ITF: a = quiet zones
Example of Industrial 2 of 5 barcode. Industrial 2 of 5. [1] (also known as Standard 2 of 5 [2] [3] [4]) is a variable length, discrete, two width symbology. Industrial 2 of 5 is a subset of two-out-of-five codes. [5] Industrial 2 of 5 is one of the first 1D and oldest barcodes and can encode only digits (0-9).
IATA 2 of 5: Discrete: Two: IATA 2 of 5 version of Industrial 2 of 5 is used by International Air Transport Association had fixed 17 digits length with 16 valuable package identification digit and 17-th check digit. Industrial 2 of 5: Discrete: Two: Industrial 2 of 5 can encode only digits 0–9 and at this time has only historical value. ITF ...
Matrix 2 of 5 barcode. Matrix 2 of 5 (also known as Code 2 of 5 Matrix. [1]) is a variable length, discrete, two width symbology. Matrix 2 of 5 is a subset of two-out-of-five codes. Unlike Industrial 2 of 5 code, Matrix 2 of 5 can encode data not only with black bars but with white spaces.
A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...
The data codewords in 0 – 112 range are encoded in 5-of-9 binary dot patterns [2]: 5.2 which are encoded from 9 dots where 5 black dots and 4 white spaces. The rest of barcode matrix (rest from division on 9) is padded with black padding bits. [2]: 5.2.3 The padding bits can be from 0 to 8. The logically DotCode bits array is represented as:
Although there are 12 combinations of one wide bar (four choices) and two wide spaces (three choices), the start/stop codes are limited in two ways: The wide spaces are required to be adjacent (so only 011 and 110 are allowed; 101 is not), and; The reversed forms of the valid codes are not valid, to identify the direction in which to read the code.
A single 1 would be the thinnest line in the bar code. Three 1's in sequence (111) indicates a bar three times as thick as a single 1 bar. There are 108 possible 11-unit wide symbols, and the code uses all possible symbols. Two of the symbols are used for stop (end-of-barcode) indication, stop and reverse stop.