A world leader in automatic data capture technology and the inventor of the QR code. QR Code® Products; Partner. The Americas sales arm of DENSO Wave. A QR Code is a matrix code (or two-dimensional bar code) a symbology developed by DENSO Wave (a division of DENSO Corporation at the time). The 'QR' is derived from.

QR code for the of the English Wikipedia Mobile main page QR code (abbreviated from Quick Response Code) is the trademark for a type of (or two-dimensional ) first designed for the. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and ) to efficiently store data; extensions may also be used. The QR code system became popular outside the automotive industry due to its fast readability and greater storage capacity compared to standard.

Applications include product tracking, item identification, time tracking, document management, and general marketing. A QR code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a camera, and processed using until the image can be appropriately interpreted. The required data is then extracted from patterns that are present in both horizontal and vertical components of the image.

Contents • • • • • • • • • • • • • • • • • • • • • • • • • • • • • History [ ] The QR code system was invented in 1994 by the Japanese company. Its purpose was to track vehicles during manufacturing; it was designed to allow high-speed component scanning. QR codes are now used in a much broader context, including both commercial tracking applications and convenience-oriented applications aimed at mobile-phone users (termed mobile tagging).

QR codes may be used to display text to the user, to add a contact to the user's device, to open a (URI), or to compose an email or text message. There are a great many QR code generators available as software or as online tools. The QR code has become one of the most-used types of two-dimensional code. Standards [ ]. Structure of a QR code, highlighting functional elements There are several standards that cover the encoding of data as QR codes: • October 1997 – AIM (Association for Automatic Identification and Mobility) International • January 1999 – X 0510 • June 2000 – /IEC (now withdrawn) Defines QR code models 1 and 2 symbols. • 1 September 2006 – ISO/IEC (now withdrawn) Defines QR code 2005 symbols, an extension of QR code model 2. Does not specify how to read QR code model 1 symbols, or require this for compliance.

• 1 February 2015 – ISO/IEC Renames the QR Code 2005 symbol to QR Code and adds clarification to some procedures and minor corrections. At the application layer, there is some variation between most of the implementations. Japan's has established standards for the encoding of URLs, contact information, and several other data types. The open-source 'ZXing' project maintains a list of QR code data types. A QR code used on a large billboard in Japan, linking to the sagasou. Fantasy Ebooks Pack 105. mobi website QR codes have become common in consumer advertising.