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Cordless 2D-barcode Barcode ScannersThese devices may use a CCD or a small video camera to capture an image of a barcode. The reader then uses sophisticated digital image processing techniques to decode the barcode. They can read 2-dimensional (2D) barcodes as well as linear barcodes. Some 2D barcode symbologies include PDF417, DataMatrix and QR Code. The less expensive 2D-barcode scanners can only read PDF417 codes.
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