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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 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 ...

  4. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    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 ...

  5. barcode on boarding pass - Air Travel Forum - Tripadvisor

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

    Those apps that read barcodes/qr-codes are there to scan codes which then direct you to a publicly accessible web page or information. The barcode on your BP is there to be scanned by security or at the gate at the airport. Stop worrying about inconsequential things. Even if your BP didnt work they could just print another one out at the airport.

  6. E ticket, VeriFLY and COVID paperwork info for US travelers ...

    www.tripadvisor.com/ShowTopic-g147288-i27-k...

    50 reviews. 41 helpful votes. E ticket, VeriFLY and COVID paperwork info for US travelers. 3 years ago. Just returned and want to share some helpful info. Make sure you complete the online E ticket and have your QR code available for entry into the Dominican Republic before you go to your US departure airport.

  7. High Capacity Color Barcode - Wikipedia

    en.wikipedia.org/wiki/High_Capacity_Color_Barcode

    High Capacity Color Barcode. High Capacity Color Barcode ( HCCB) is a technology developed by Microsoft for encoding data in a 2D "barcode" using clusters of colored triangles instead of the square pixels conventionally associated with 2D barcodes or QR codes. [ 1] Data density is increased by using a palette of 4 or 8 colors for the triangles ...

  8. Visit Japan customs and immigration QR codes - Tripadvisor

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

    Just log on to japan web and navigate to the qr codes. On the page displaying the qr code just right click in the browser window and choose print. You can also save as pdf and print the pdf. If your printer supports printing from your phone then just do the same as Japan web is in fact just a web site also on phone. 5.

  9. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    4. Select Authenticator app for your 2-step verification method.-To see this option, you'll need to have at least 2 recovery methods on your account . 5. Click Continue. 6. Scan the QR code using your authenticator app. 7. Click Continue. 8. Enter the code shown in your authenticator app. 9. Click Done. Sign in with 2-step for authenticator app. 1.

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