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2. Barcode reader - Wikipedia

   en.wikipedia.org/wiki/Barcode_reader

   A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send ... The scanner resolution is measured by the size of the dot of ...

3. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   A barcode or bar code is a method of ... can function as the latter type of barcode reader using specialized application ... in some cases with sub-pixel resolution ...

4. Rectangular Micro QR Code - Wikipedia

   en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

   Data placement of Rectangular Micro QR Code. Rectangular Micro QR Code places data in the same way as QR code in two-module wide columns [2]: 7.7.3 commencing at the lower right corner of the symbol and running alternately upwards and downwards from the right to the left.

5. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...

6. Code 39 - Wikipedia

   en.wikipedia.org/wiki/Code_39

   Code 39 (also known as Alpha39, Code 3 of 9, Code 3/9, Type 39, USS Code 39, or USD-3) is a variable length, discrete barcode symbology defined in ISO/IEC 16388:2007.. The Code 39 specification defines 43 characters, consisting of uppercase letters (A through Z), numeric digits (0 through 9) and a number of special characters (-, ., $, /, +, %, and space).

7. Code 128 - Wikipedia

   en.wikipedia.org/wiki/Code_128

   Optimizing the length of the resulting barcode is important when barcode readers are used which must detect the entire barcode image at once in order to read it, such as common laser scanners. The longer the barcode is, the greater distance of laser barcode reader from barcode image is needed, making reading difficult or impossible above some ...