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Last modified:
  30 Mar 2009
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Types of 2D codes

Code One

Code One is a two-dimensional matrix symbol containing dark and light square data modules and a finder pattern of parallel lines in the symbol's interior. Code One is designed for a fixed level of error correction capability. Code One is used both for large data file encoding and small item marking applications.

 


Data Matrix

Data Matrix is a two-dimensional matrix symbol containing dark and light square data modules. It has a finder pattern of two solid lines and two alternating dark and light lines on the perimeter of the symbol. Data Matrix is used for small item marking applications using a wide variety of printing and marking technologies.
 

QR Code

QR Code is a two-dimensional matrix symbol containing dark and light square data modules. It has position detection patterns on three of its for corners and features direct encoding of the Japanese Kana-Kanji character set. QR Code is used for small item marking applications using a wide variety of printing and marking technologies.


Shot Code

A Shot Code is a two-dimensional circular symbol containing dark and light data modules.  It was originally developed by High Energy Magic of Cambridge, England as the Spot code. It has been renamed by its current owner, OP3, to Shot Code.

 

 

Some codes are free to use, most of them codes are proprietary and available under license terms: Sony has developed its own Cybercode
UPS has developed Maxicode.