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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 ...
The PDF417 bar code (also called a symbol) consists of 3 to 90 rows, each of which is like a small linear bar code. Each row has: a quiet zone. This is a mandated minimum amount of white space before the bar code begins. a start pattern which identifies the format as PDF417.
MicroPDF417 has high encoding density and in this way, it can add more additional data in lower space. At this time, it is used in inventory management and goods labeling as part of EAN.UCC Composite Symbology [9] and GS1 Composite barcode symbology. [5] Most of barcode printers [10] and barcode scanners [11] have MicroPDF417 support.
The characters are divided into three groups, based on the number of wide elements: The basic 12 symbols (digits 0–9, dash, and $) are encoded using all possible combinations of one wide bar and one wide space. An additional 4 symbols (:/.+) are encoded using 3 wide bars and no wide spaces.
Matrix 2 of 5 could include optional checksum character which is added to the end of the barcode. Matrix 2 of 5 features: [10] character set is a number (0-9); encoding density moderate: barcode length on 11% longer than Interleaved 2 of 5 symbology and on 82% than Code 128; variable length of symbol; can include optional checking character.
A Swiss postal barcode encoding "RI 476 394 652 CH" in Code 128 (B & C) Code 128 is a high-density linear barcode symbology defined in ISO/IEC 15417:2007. [1] It is used for alphanumeric or numeric-only barcodes. It can encode all 128 characters of ASCII and, by use of an extension symbol (FNC4), the Latin-1 characters defined in ISO/IEC 8859-1.
Few objects in the world are more immediately recognizable than the barcode—more than 6 billion are scanned every single day. Here’s what to know about their history.
Code 93 is a barcode symbology designed in 1982 by Intermec to provide a higher density and data security enhancement to Code 39. It is an alphanumeric, variable length symbology. Code 93 is used primarily by Canada Post to encode supplementary delivery information. Every symbol includes two check characters.