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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    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 ...

  3. Barcode reader - Wikipedia

    en.wikipedia.org/wiki/Barcode_reader

    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 ...

  4. QR reader boarding pass: How does it work? - Air Travel Forum

    www.tripadvisor.com/ShowTopic-g1-i10702-k4887012...

    You complete OLCI as normal and then select send the boarding pass to a phone option. You then open it and it shows a QR code which is held to the scanners at the airport. Many airlines have specific apps which are geared up to issuing QR boarding passes. Pretty efficient system IMO. Edited: 12 years ago.

  5. Barcode Scanner (application) - Wikipedia

    en.wikipedia.org/wiki/Barcode_Scanner_(application)

    Barcode Scanner scanning a QR code. The application Barcode Scanner is an Android app, from the open-source project ZXing (short for Zebra Crossing), that allows an Android device with imaging hardware (a built-in camera) to scan barcodes or 2D barcodes and retrieve the data encoded. [2] Information encoded often includes web addresses ...

  6. QR codes on phones for Hotel doors - Business Travel Forum

    www.tripadvisor.com/ShowTopic-g1-i12407-k...

    34 posts. QR codes on phones for Hotel doors. Aug 7, 2024, 1:54 AM. So far, pretty sucky in our first experience, In a Paris aparthotel for Olympics. They wanted us to download QR onto phone but reader having hard time reading it. Sometimes we have problem with front entry door sometimes suite door. The technology is there: we have no problem ...

  7. Smart-ex: Another technical question for purchasing tickets ...

    www.tripadvisor.com/ShowTopic-g294232-i525-k...

    5 Yes, click My Trips then "Details" for the reservation in question. 6 Printed QR Ticket is sufficient. But in the case that you lose your printed QR Ticket or lose your phone, you'll need to get a paper ticket. To get a paper ticket you need 1) the pickup code and 2) your login password. 7.

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