1994 for the automotive industry in Japan. Applications include product tracking, item identification, time tracking, document management, and general marketing. The x8632 bitcoin data is then extracted from patterns that are present in both horizontal and vertical components of the image. The QR code system was invented in 1994 by the Japanese company Denso Wave.
Defines QR code models 1 and 2 symbols. 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. 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. A QR code used on a large billboard in Japan, linking to the sagasou.