Viscount Systems has been awarded U.S. Patent 8941465 B2, outlining a system and method for physical access control using QR codes and mobile devices, as part of its Freedom Access Control Solution.

Third Millennium's new RXQR and RXQRK readers — multi-technology access-control devices that integrate high-security RFID card and QR code credentials into a single, elegant unit. Pontypool, Oct. 13, ...

ButterflyMX's QR Code Intercom enables visitors, staff, and residents to access properties using a smartphone. By scanning a mounted QR code, users launch a secure, web-based intercom experience with ...

First invented for use in industrial applications in Japan in the early 1990s, QR codes were being widely used by consumers when smartphones with QR readers became more prevalent in the 2000s. After ...

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. QR codes are found everywhere from ...

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...