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Original file (1,500 × 1,125 pixels, file size: 1.16 MB, MIME type: application/pdf, 14 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
The codes should be well lit. Shadow makes it more difficult to scan. Avoid reflected glare (particularly when laminating the codes or placing them behind glass). Larger codes will scan more effectively. 2 inches (5 cm) across will allow for distance and older smartphones with lower quality cameras. 1 inch (2.5 cm) should be the minimum.
Those codes still need recognition and alignment patterns, but they do not need to be as prominent. An 8 bit code word will take 8 square modules (ignoring recognition, alignment, format, and ECC information). In practice, a PDF417 symbol takes about four times the area of a DataMatrix or QR Code. [5]
Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 [1] by Denso Wave as ISO/IEC 23941. [ 2 ] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code.
The QR code system was invented in 1994 by Masahiro Hara from the Japanese company Denso Wave. [4]In December 2010, the first documented description of QR code-based payments came from two patents filed by Shaun Cooley and Andrew Charles Payne, based on a prototype system developed for Norton Labs at Symantec called Norton Mobile Pay.
In addition, Windows Live Confucius also allowed users to create QR Codes using an offline Windows application from their desktop, named Desktop QR Code generator. Together with the launch of Desktop QR Code generator, the QR Reader client was released as well for users to view QR codes on their Windows Mobile devices. [2]
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