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 correction ...

2021年5月3日 · QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons.

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. How Do QR Codes Work? There’s a long and technical version of this answer and a short version.

2021年3月4日 · QR codes store data using patterns of black dots and white spaces arranged in a square grid. These patterns can be scanned and translated into human-readable information, with the help of an imaging device, like a camera or a scanner.

2022年10月25日 · What Is a QR Code? The now-common QR code (short for "Quick Response" code) is a modern adaptation of the typical UPC barcode. It's a machine-readable label that contains data, which a computer or smartphone can interpret faster than plain text or code.

2025年1月14日 · 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 provide information, such as a link, text, or other data.

2023年4月21日 · What Is a QR Code? A QR code is a square barcode that can contain information such as a URL, Wi-Fi password, or contact card, and it can be scanned easily by a smartphone camera. You've probably seen QR codes---those black and white boxes with small squares arranged in seemingly random patterns.

A Quick Response (QR) code is a two-dimensional barcode, invented in 1994, that stores information in a matrix of black and white squares, readable by a QR scanner or a smartphone camera.

2024年11月7日 · A QR Code stands for Quick Response Code. It is a two-dimensional barcode that stores information easily accessible with a scan. You can scan them with a QR Code scanner or a QR Code reader (nowadays available on all mobile phones).

2018年9月3日 · Created in 1994 by Toyota subsidiary 'Denso Wave' to quickly track vehicles and parts through the company's automotive manufacturing process, QR codes are used more commonly today for logging...