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The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] 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; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...
A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner, it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals. Additionally, nearly all barcode readers contain decoder circuitry ...
QR codes can be of two main categories: [49] [citation needed] The QR code is presented on the mobile device of the person paying and scanned by a POS or another mobile device of the payee The QR code is presented by the payee, in a static or one time generated fashion and it is scanned by the person executing the payment
Read on to see how your most commonly lost items compare to other Americans. Tile. These are the items Americans lose most. Perhaps unsurprisingly, the most commonly lost items were also among the ...
MeCard (QR code) MeCard is a data file similar to vCard but used by NTT DoCoMo in Japan in QR code format for use with Cellular Phones. It is largely compatible with most QR-readers for smartphones. It is an easy way to share a contact with the most used fields. Usually, devices can recognize it and treat it like a contact ready to import.
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. But rMQR Code is more suitable for the rectangular ...
QR decomposition. In linear algebra, a QR decomposition, also known as a QR factorization or QU factorization, is a decomposition of a matrix A into a product A = QR of an orthonormal matrix Q and an upper triangular matrix R. QR decomposition is often used to solve the linear least squares (LLS) problem and is the basis for a particular ...
NFC World. 30 January 2013. Retrieved 31 January 2013. ^ "Blackberry Z10". Blackberry. Archived from the original on 3 February 2013. Retrieved 31 January 2013. ^ Casio G'zOne Commando 4G LTE, Verizon Wireless, retrieved 5 July 2013. ^ With the exception of the Japanese version which uses full IRDA.