Micro PDF 417
MicroPDF417 is a multi-row symbology based on PDF417 designed for applications requiring a greater area efficiency but lower data capacity than PDF417. A specific and limited set of symbol sizes is available, each size including a fixed level of error correction.
MicroPDF417 provides for three encoding modes: Text, Byte and Numeric compaction. Text is for general text, Numeric for encoding data consisting only of digits, and Byte to allow for the first 127 ASCII characters but with a reduced level of efficiency. Four symbol widths are permitted, each specifying the number of data columns (1 – 4). Within each symbol width a variable number of rows provide for a maximum data capacity of:
Text compaction mode 0: 250 characters (2 data characters per codeword)
Byte compaction mode 1: 150 characters (1.2 data characters per codeword)
Numeric compaction mode 2: 366 characters (2.93 data characters per codeword)
The Level parameter for MicroPDF barcodes set the number of data columns within the barcode, which may be 1 – 4.
The industry standard Macro sequences [)>{RS}05{GS} and [)>{RS}06{GS} are supported (where {RS} represents ASCII 30 and {GS} is ASCII 29).
The following character translations are made when the value of the mode parameter is increase by 8.
|
String |
converted to |
|
{ET} |
ASCII 4 |
|
{FS} |
ASCII 28 |
|
{GS} |
ASCII 29 |
|
{RS} |
ASCII 30 |
Appended symbols are not supported at this time.
