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  2. 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 ...

  3. 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 ...

  4. Barcode library - Wikipedia

    en.wikipedia.org/wiki/Barcode_library

    Barcode library or Barcode SDK is a software library that can be used to add barcode features to desktop, web, mobile or embedded applications. Barcode library presents sets of subroutines or objects which allow to create barcode images and put them on surfaces or recognize machine-encoded text / data from scanned or captured by camera images with embedded barcodes.

  5. Visit Japan Web QR Code when filling out for a family member ...

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

    I had a QR code for me and added my wife. So two people, one code. At immigration they insisted one person, one code. So had to fill out a paper form for my wife. Then at customs, even though the forms say one per family, my code would not work for her. Do not have any advise, just passing along my experience.

  6. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode ...

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

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

    Having not actually used a QR reader or code properly, as you can gather, I'd got the wrong end of the stick - or is that reversed the way they work! So the reader on my phone reads codes elsewhere (and has no relevance to boarding passes), the code sent to my phone is read/scanned by something/body else, and can be used in lieu of a physical ...

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