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Discuss What's this? in the UK Tiling Forum area at TilersForums.com.
Ahhh so it's the URL for tilersforums.
Google did it quicker, and for free. :lol:
Okay, Rob I blame you for provoking me whilst I'm under the influence of wine......
2d barcodes (the QR code is one of a large family) were originally conceived to contain considerably more data that traditional linear barcodes (EAN8 & EAN13 are UK retail versions, UPC are US for RobZ :lol. The initial concept was that sell by dates, use by dates, manufacturer detail etc. etc. could be encoded for every product. This never caught on because it is much quicker to decode a small number of characters and reference a database. Another benefit of 2d codes was the multiple data encryption which meant that data could be replicated multiple times in a code, meaning that the symbol could encounter 25% damage and the full data content would still be retained which is something that linear barcodes do not offer.
2d codes were initially read using led barcode scanners that had to create a 3d image and then decode the data content which took an absolute age so the technology never really took off. In latter years camera technology has become smaller and faster so now the decode algorithms have become a standard feature of most digital camera firmware..........
God I'm boring.....................Sorry, and if you want even more mind numbing detail, just ask :lol:.
So are 2d now free? I mean I just created the qr codes from free and it held the data? I'm assuming the reader I have on my phone didn't reference a database, rather it decoded the info built into the image. If that is the case then surely manufacturers no longer have to pay fees in order to generate these new codes unlike barcodes????
Reply to What's this? in the UK Tiling Forum area at TilersForums.com
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