Code 16K
The code 16K ( 1988 ) is a multi-row barcode and was developed by Ted Williams at Laserlight Systems (USA). In the USA and France, the code is used in the electronics industry to identify chips and printed circuit boards. Applications from the medical field in the USA are known.
structure
The code is based on the structure of the Universal Product Code and Code 128 . 77 ASCII characters or 154 digits can be encoded on an area of 2.4 cm² . The number of rows varies between two and 16.
To ensure a high level of error security, Code 16K offers three forms of error detection
- The parity is checked for each character .
- Each line is recognized indirectly through the representation of a start / stop character
- Two checksum characters are appended to the end of the code.
The code 16K exists in three versions (A, B, C). With an extended decoder , the code can be identified by all conventional reading devices. Before decoding , the entire block of code must have been captured.
A detailed code specification is available from the Association for Automated Identification and Mobility .
literature
- BARCODAT: 2D code primer. 5th edition. BARCODAT, Dornstetten 2007, online (PDF; 4.35 MB) ..
- Bernhard Lenk: manual of automatic identification. Volume 2: 2D codes, matrix codes, stacked codes, composite codes, dot codes. Monika Lenk Fachbuchverlag, Kirchheim unter Teck 2002, ISBN 3-935551-01-0 .