![]() For QR-encoded URLs, after detection, there's the option to open the link directly, to save it as a favourite or to share it in various ways. In the latter case, it brought up correct details for the Stylophone on Amazon. ![]() When BeeTagg works (on the larger QR code and the box barcode) it was lightning fast at detecting the code and bringing up details. BeeTaggĪ quirky and slightly clumsy interface that also produced patchy results. The decoding stage for the 1D barcodes involved access to the appropriate product database online, so it goes without saying that the test N8 was fully online during the reviews. In each case, the job of the reader utility is to recognise each code, decode it and then either directly open the linked resource, or allow me to do this manually or save it somehow. To test the reader applications here, I selected two 1D codes (on a book and a music novelty) and two QR (2D) codes, a largish one (1") from a web print out and a tiny, challenging one (1cm) from a promotional brochure: Of particular note is that there's usually redundancy in each code, in terms of the data bits presented, so that if part of the QR code is obscured, smudged or torn off, the code and its data can still be acquired and deconstructed.Īlthough traditional ('one dimensional') barcodes are far less sophisticated, they're also far more common than ('two dimensional') QR codes, which is why most of the utilities reviewed here can cope with either form of digital representation. Either the application that scans the QR Code retrieves the geo information by using GPS and cell tower triangulation (aGPS) or the URL encoded in the QR Code itself is associated with a location. QR Codes may also be linked to a location to track where a code has been scanned. This act of linking from physical world objects is termed hardlinking or object hyperlinking. Users with a camera phone equipped with the correct reader application can scan the image of the QR Code to display text, contact information, connect to a wireless network, or open a web page in the telephone's browser. QR Codes storing addresses and Uniform Resource Locators (URLs) may appear in magazines, on signs, on buses, on business cards, or on almost any object about which users might need information. With the right software, these can be read and converted back into the original information, often (but not always) an Internet resource address of some kind. a grid of black and white squares representing a pattern of bits of data. At their simplest, QR codes (the letters standing for 'Quick Response') are two-dimensional bar codes, i.e.
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