What are 2d barcodes?
2D Barcodes are symbologies that are capable of storing
more information than can normally be contained in a
conventional linear barcode. These include:
|
AZTEC – Excellent for viewing on cell phones and PDA displays: |
|
QR Code – Marketing & Transportation applications: |
|
DATAMATRIX – a square symbology, of varying
densities used extensively in part marking and document ID as a large
number of characters can fit in a small space: |
|
|
PDF417 – can be printed at a variety of aspect
ratios and densities. Used in transportation, manifests,
and personal ID including state driver’s
licenses. |
2D Barcodes
can serve as portable data files, enabling the user to access
information such as lot processing, shipment manifest, and
serial number/sku data remote from the network database.
Most 2d codes require an imager, which algorithmically processes the
image. Imager scanners are effectively digital cameras with
integrated processors and therefore can also capture images
such as signatures. As with linear barcode scanners, they can
interface as a keyboard or serial emulation device, via USB, PS/2 or serial connection
