A 2D barcode scanner can interpret two-dimensional barcodes, which store data in two dimensions, rather than in merely a series of black and white bars. 2D barcodes look like checkerboards or a series of traditional barcodes stacked atop one another, and 2D barcode scanners use both CCD and imaging technology to read the barcodes.
A barcode is an optical pattern, readable by a machine, that represents certain data. Originally, barcodes represented data in the widths and the spacings of parallel lines (bars), called 1D (one-dimensional) barcodes. They also come in patterns of squares, dots, hexagons and other geometric patterns within images called 2D (two-dimensional) barcodes. Although 2D systems use symbols other than bars, they are generally referred to as barcodes also. 2D barcodes can be read by 2D barcode scanners.
2D barcodes have become an essential part of modern life and 2D barcode scanners have similarly become essential in every business or organization which requires the use of barcodes. Their use is widespread, and the technology behind barcodes is constantly improving. 2D barcode scanners are used in stores to scan merchandise or membership cards, and in hospitals to scan patient identification wristbands in order to access vital patient data, including medical history, allergy warnings and other life-saving medical information. Airlines use 2D barcode scanners to scan boarding passes, and mobile phones enable electronic boarding passes through the use of 2D barcodes. Document management tools often allow for barcoded sheets to aid in the indexing of documents.
2D barcode imaging scanners are the newest type of bar code reader available. 2D barcode scanners use a small video camera to capture an image of a bar code. The reader then uses sophisticated digital image processing techniques to decode the data embedded in the bar code. Video cameras inside the 2D barcode scanner have hundreds of rows of sensors arranged in a two dimensional pattern so that they can generate an image. Scanning methods of 2D barcode scanners are distinguished by the amount of operator manipulation required. Pen or wand-type 2D barcode scanners are swiped over the barcode label. Semi-automatic handheld 2D barcode scanners are positioned near the barcode label. Fix-mount readers pass the label over the scanner without the need for an operator, but the position of the code target must coincide with the imaging capability of the reader. 2D barcode scanner gates can automatically scan items if their barcodes pass just under the gate for a short time, enabling the scanner sweep to capture the code target successfully.
The reason 2D barcode scanners are business-friendly is that the 2D barcode scanners are relatively inexpensive and 2D barcodes are extremely accurate compared to manual data key-entry. Nearly every business has a use for a 2D barcode scanner, since 2D barcodes hold so much valuable information. A 2D barcode scanner helps electronically keep track of inventory while saving time, since items can be identified and priced with one quick scan of an item’s barcode. The use of barcodes can provide accurate, detailed, and up-to-date information on key aspects of the business, enabling decisions to be made quickly and with confidence. Besides sales and inventory tracking, barcodes are very useful in shipping, receiving, and tracking. No matter what the business need, a 2D barcode scanner is a valuable addition to any business.