Information Everywhere: 2d Visual and Audio Barcodes

Consumers want information everywhere and at all times: from access to their service accounts on phone IVRs, main portals, social networks, and mobile devices, to identifying music with programs such as Verizon’s V Cast Song ID, or iPhone apps such as midomi and shazam. The latest trend is to allow the consumer to easily retrieve additional information on anything they want, lately commercialized using Matrix codes, also known as two-dimensional bar codes.

The most popular matrix code is a QR Code , created by Japanese corporation Denso-Wave in 1994. The “QR” is derived from “Quick Response”, as the creator intended the code to allow its contents to be decoded at high speed. QR Codes are common in Japan, where they are currently the most popular type of two dimensional codes.

QR Codes are used in a broad context, including both commercial tracking applications and convenience-oriented applications aimed at mobile phone users (known as mobile tagging). QR Codes storing addresses and URLs may appear in magazines, on signs, buses, business cards or just about any object that users might need information about. Users with a camera phone equipped with the correct reader software can scan the image of the QR Code causing the phone’s browser to launch and redirect to the programmed URL. This act of linking from physical world objects is known as a hardlink or physical world hyperlinks. Users can also generate and print their own QR Code for others to scan and use by visiting one of several free QR Code generating sites.