The QR Code (Quick
Response Code) is a 2-dimensional matrix code. It can encode up to 2509 numeric or
1520 alphanumeric characters and offers three levels of error detection. The
smallest QR Code measures 21 X 21 cells (each cell encodes one bit) and can grow in
increments of 4 cells to a maximum size of 105 X 105 cells. The squares in the
bottom left, top left, and top right corners are locator patterns.
The QR Code was developed in Japan by the Nippondenso Company; it was introduced in
1994 at the Japan Scan-Tech show and was submitted to AIM for consideration as a standard
in 1996.
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The QR Code (Quick
Response Code) is a 2-dimensional matrix code. It can encode up to 2509 numeric or
1520 alphanumeric characters and offers three levels of error detection. The
smallest QR Code measures 21 X 21 cells (each cell encodes one bit) and can grow in
increments of 4 cells to a maximum size of 105 X 105 cells. The squares in the
bottom left, top left, and top right corners are locator patterns.