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Why Use the 2-Dimensional Data Matrix?
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From All-Marks, LLC
By arranging a grid of black and white checker board-like cells a code can be created that is capable of holding substantially more data in a smaller area than the conventional bar code. All-Marks provides equipment to print Mil-Std-130M compliant 2D codes. In addition, we can provide integrated 2D code readers from such major suppliers as Siemens, Ci-Matrix, Microscan, DVT, Cognex and SICK as well as recommend the optimum hand held readers for your application. Linear or one-dimensional bar codes are limited in the amount of information that can be contained within the code. Other technologies, such as magnetic stripe or RF tags can hold more information but are more expensive to implement. In an effort to develop bar code symbologies that would hold more information, stacked codes were developed. Stacked codes are linear bar codes printed one above the other to form a single symbol. These codes could be read by conventional reading equipment, such as laser or CCD handheld scanners. Some examples of stacked codes are Code 49, Code 16K and PDF417. Products & Services
Bar code printers are used to output bar code data in printed form.
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Learn more about Bar Code Printers
Radio frequency identification (RFID) products read or write data to RF tags that are present in a radio frequency field projected from RF reading/writing equipment.
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Learn more about Radio Frequency Identification (RFID) Products
Hand held bar code scanners are used typically as inventory or point of sale (POS) devices. These scanners are passed over bar codes manually to read data. They often have a gun or wand design.
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Learn more about Handheld Bar Code Scanners
Bar code scanners are designed to read imprinted bar / matrix code symbologies. Bar code scanners can be slot card scanners, fixed mount scanners, or hand-held scanners.
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Learn more about Bar Code Scanners
Product Announcements
Topics of Interest
Error control coding theory has been studied for over half a century, and it is still going
stronger than ever. The most recent examples are the turbo codes and the low-density
parity check codes...
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9.4.3 Evaluation
Code Length Figure 9.9 illustrates the relation between the information-bit length and
the check-bit length of the SEC-Se/8EL codes for e = 2 and 6. In the figure...
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Military and law enforcement personnel use aiming assistance products from Laser Devices to make their weapons more accurate. Laser Devices, in turn, relies on Data Matrix two-dimensional (2D) bar...
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Military and law enforcement personnel use aiming assistance products from Laser Devices to make their weapons more accurate. Laser Devices, in turn, relies on Data Matrix two-dimensional (2D) bar...
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Overview
Activities are assigned Activity Codes. Then activities may be grouped and sorted under these codes, enabling the same information to be presented in a number of different formats.
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