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.
UPC bar codes can range from 0.8 to 2.0 magnification. At 0.8, the bar code is reduced to 80 percent from the nominal size. At this magnification, the bar code is 1.175 inches wide by 0.816 inches high. This is the smallest that a bar code can be and still be scanned.
Unlike one-dimensional barcodes, QR codes are two-dimensional or three-dimensional. This is the difference between 2D and 3D barcodes: 2D codes: Printed on a flat surface like paper or signage, the 2D QR code is what most of us picture when we think of a QR code.
The QR code (Quick Response Code) was first created for the automotive industry in Japan in 1994, making it an infant relative to the decades-old barcode. QR codes are two-dimensional (2D) barcodes, also known as matrix codes.
The UPC barcode is linear, as are Code 39, I 2 of 5, and Code 128. Mil: A unit of measure equal to 1/1000 of one inch. For example, a line 1/4 inch wide would be 250 mils. Narrow to Wide Ratio: The ratio of the narrowest bar (see “X dimensionâ€) to the widest bar in a linear barcode symbol.
The actual size of the DataMatrix code is determined by multiplying the symbol size by the printable size of the module.
A data matrix code is a 2D code that is made of black and white cells that are typically arranged in a square pattern (although rectangular patterns also exist). A QR code—or quick response code—is a 2D code that is made of black cells arranged in a square grid on a white background.
They are also called linear barcodes. Just like QR codes, data matrix codes are 2D barcodes. They are usually square in shape and encode information in the form of square black and white dots, forming the so-called timing pattern.
A Data Matrix Code is a two-dimensional (2D) code that consists of black and white modules, usually arranged in a square pattern. As more data is encoded in the symbol, the number of modules (rows and columns) increases. An entire Data Matrix symbol can store up to 2,335 alphanumeric characters.
Data Matrix is a 2D barcode symbology with very high data density. Data Matrix symbols are printed in square or sometimes a rectangular pattern. Each dot of a Data Matrix symbol represents a bit. This is in contrast to linear bar-codes, where the information is encoded in the ratio of the bars or spaces to each other.
Data Matrix Barcode OverviewData Matrix is a very efficient, two-dimensional (2D) barcode symbology that uses a small area of square modules with a unique perimeter pattern, which helps the barcode scanner determine cell locations and decode the symbol.
Open a new Excel spreadsheet, move to "Add-Ins" tab, and click "Insert Barcode". Choose a cell, select "DataMatrix" barcode symbology, and input valid data. Customize Data Matrix property values and click "Insert" button. Adjust properties of created Data Matrix barcode and click "Update".
barcodes have a fixed relationship between barcode height and width, so if one dimension is modified, the other dimension must be altered by a proportional amount. For this reason, you should NOT resize or crop these barcodes.
There may be compliance rules suggesting minimum proportions for a given barcode standard. For regular linear product barcodes, the simple answer is yes, you can scale it (both case are safe). However, if you scale too far and the bars end up too close together, you will start to get a high level of read errors.
A UPC-A barcode contains 12 digits, along with a quiet (blank) zone on either side, and start, middle, and stop symbols. The middle symbol separates the left side and the right side, which are coded differently.
The quiet zone is the area that surrounds the barcode or 2D symbol that is free of all text, characters, graphics, marks, and blemishes. This blank space allows verifiers or readers to " understand" where the barcode begins and ends so the code can be read as intended.
Quiet zones for two dimensional (2D) barcodes are calculated differently. The popular QR Code that is being used in marketing materials recommends a white space of 4 times the size of a module (that is the size of one of the black squares within the code) on all four sides of the code.
While black bars on a white background are a very good combination, your barcode does not have to be black and white. You must also make sure that you never reverse-out the image, putting white bars on a black background, because this will not work.
UPC sizes are referred to as magnifications or magnification factors. The nominal size of a UPC is 100% magnification factor or 1.469 inches wide (from the far left hand side number to the far right hand side number) by 1.02 inches tall (from the top of the bar code to the bottom of the human readable numbers).
UPC UPC (Universal Product Code) is the most common barcode for retail product labeling. It is seen in most grocery stores across the United States. The symbology encodes a 12-digit numeric-only number.
The most popular barcode label sizes we offer are the 4†x 6†shipping labels and half sheet shipping labels listed above. For product identification, our 1.5†x 1†labels are also a very popular selection for barcodes.
The Universal Product Code (UPC; redundantly: UPC code) is a barcode symbology that is widely used worldwide for tracking trade items in stores. UPC (technically refers to UPC-A) consists of 12 numeric digits that are uniquely assigned to each trade item.
2. 2D barcode scanners can scan both 1D and 2D barcodes. Using a 2D barcode scanner means your company is ready for the future, but still able to work with the past. You can use your new 2D barcode scanners to read your old 1D barcodes and they can work with your suppliers or customers who still use 1D barcodes.
Barcode Types
- Code 39. This is one of the oldest barcodes around and is a common symbology found in electronics, healthcare, and government.
- Code 128.
- Interleaved 2 of 5.
- Universal Product Codes (UPC)
- International Article Number (EAN)
- PDF417.
- Data Matrix.
- Quick Response (QR) Codes.
Code 128 is a one-dimensional (1D), high-density barcode that is able to encode letters, numbers, special characters and control codes. Its primary use is in supply chain (inventory, shipping, etc). It can encode all 128 characters of ASCII.
What is an EAN-13 Barcode? The EAN-13 barcode encodes a GTIN-13 and is used to identify individual items at retail point of sale. It can also be used for trade units sold to consumers, e.g. a case of wine.
There are about 30 major barcode formats that are commonly used today based on the linear numeric, linear alpha-numeric, and 2-dimensional designs. Each of these major formats has seen adoption in particular applications that can take advantage of their unique qualities.
There are two ways to identify type of the barcode - using a capable scanner or visual inspection of its shape and start/stop patterns.
As the first alpha-numeric symbol developed in the year 1974 by Intermec, Code 39 is a variable length, discrete barcode symbology. Also, it is often known as Alpha39, Code 3 of 9, Code 3/9, Type 39, USS Code 39, or USD-3.
QR codes are best read by 2D barcode scanners. These codes cannot be read by standard or 1D barcode scanners. The 2D scanner will take a picture of the entire image of the barcode at once. This data is then analysed by a decoding algorithm to define the information contained in the code.
