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A QR code, quick-response code, [1] is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of Japanese company Denso Wave for labelling automobile parts. [2][3] It features black squares on a white background with fiducial markers, readable by imaging devices like cameras, and processed using Reed–Solomon error ...

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2024年9月4日 · A QR code is used to take digital information from a physical medium into a digital device. Using QR codes as a means for money changing hands has seen the largest use to date, next to advertising.

QR codes (or Quick Response codes) are two-dimensional codes that you can scan with a smartphone. The code contains information, usually a site address, and once you scan it, the code connects you with a resource on the web.

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2025年1月14日 · What Is A QR Code? A QR code (short for Quick Response code) is a collection of black and white squares arranged in a grid that stores data. Simply put, when it is scanned by a smartphone or camera, this arrangement is decoded to …

2025年3月16日 · In this article, we will show you how to create a QR code for a link to website, Google form, business card, Facebook page, bank account etc.