Two-Dimensional (2D) Barcode Types
Two-dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots.
A single 2D barcode can hold a significant amount of information and may remain legible even when printed at a small size or etched onto a product. 2D barcodes are used in a wide range of industries, from manufacturing and warehousing to logistics and healthcare.
What are the two-dimension barcode types?
Aztec Code is a type of 2D barcode invented by Andrew Longacre, Jr. and Robert Hussey in 1995. The code was published by AIM, Inc. in 1997.Widely used for airline boarding passes and ticketing, these barcodes are compact and efficient. Unlike other matrix barcodes, they don’t require a surrounding blank “quiet zone” and can be decoded even if the print quality of the barcode is poor.
2. DATA MATRIX
A Data Matrix is a two-dimensional code consisting of black and white "cells" or dots arranged in either a square or rectangular pattern, also known as a matrix. The information to be encoded can be text or numeric data. Usual data size is from a few bytes up to 1556 bytes. This 2D barcode is used primarily to mark small electronic components like integrated circuits and printed circuit boards. The symbology, which requires specialized 2D barcode scanners to read, can encode roughly fifty characters of data in a 2mm or 3mm square and has high fault tolerance.
MaxiCode is a public domain, machine-readable symbol system originally created and used by United Parcel Service. Suitable for tracking and managing the shipment of packages, it resembles an Aztec Code or QR code, but uses dots arranged in a hexagonal grid instead of square grid.UPS needed a way to label, sort, and ship packages around the world in the most efficient way possible. So, in 1992 they developed the predecessor of what would eventually become the MaxiCode. The dot-matrix code helps UPS sort packages on a high-speed conveyor belt.
PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management.This 2D stacked barcode symbology, used in the shipping industry, medical records, and on standard identification cards such as driver’s licenses, can encode very large amounts of data. The robust PDF417 has the capacity to hold over 1.1 kilobytes of data and allows for nine different security levels. This barcode type requires specially designed handheld 2D laser or CCD scanners to decode.
5. QR Code
A QR code is a type of matrix barcode invented in 1994 by the Japanese automotive company Denso Wave. A barcode is a machine-readable optical label that can contain information about the item to which it is attached.
The QR (Quick Response) barcode is very popular due to their readability, accuracy, and flexibility. Used in retail and marketing, the symbology uses position detection patterns to maintain high-speed reading, can store huge amounts of data and has high fault tolerance.
Increasingly, we’re seeing QR codes used within apps that let users simply scan their phone to check-in, receive reward points, or make payments. These codes are often personalized or branded with the retailer’s logo or brand colors.
QR codes, like PDF417, also come in a “mirco” variant for use on smaller objects or screens.
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