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A QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. [1] This is an alternative to doing electronic funds transfer at point of sale using a payment terminal . [ 2 ]
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 ...
QR code is a square two-dimensional bar code. QR codes have been in use since 1994. [48] Originally used to track products in warehouses, QR codes were designed to replace the older one-dimensional bar codes. The older bar codes just represent numbers, which can be looked up in a database and translated into something meaningful.
WeChat Pay is a digital wallet service incorporated into WeChat, which allows users to perform mobile payments and send money between contacts. [5] Now, WeChat Pay has six different payment products: Quick Payment, QR Code Payment, Mini Program Payment, Official Account Payment, In-APP Payment, and Web Payment. [6]
Pay via QR code Phone on, phone unlocked, Wallet app open & ready to scan QR. — — Use code-based or visual passes (excluding visual transit passes) Phone on, phone unlocked, Wallet app open & viewing desired pass. Watch on, watch unlocked, Wallet app open & viewing desired pass. — Use general NFC (Smart Tap) passes Phone on, phone screen lit.
Users have to top-up the e-wallet with a debit/credit card, and make payments by scanning the QR code at a retail shop and entering the payment amount. Payment can be authorised with either a 6-digit PIN or the phone's fingerprint scanner. Up to 6 debit/credit cards can be saved in the EZ-Link app. [29]
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