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EAN-130043396407428   EAN-13 barcode 0043396407428
UPC-A043396407428   UPC-A barcode 043396407428
Product NameSafety Not Guaranteed
LanguageEnglish
CategoryElectronics / Photography: A/V Media: Movie / TV
Short DescriptionWeight:0.25 pounds
Amazon.comA Buy on Amazon ~ B008OHV49W
SKU3857917
Price New9.83 US Dollars    (curriencies)
Price Used8.95 US Dollars    (curriencies)
BindingDvd
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Created11-21-2012 7:43:11am
Modified04-18-2020 12:03:55am
MD5852b25fe59532634e24260ac767349f7
SHA256fab6cad25882373a722f33753eaa968a82932a1046bd419a0e10815b6d681967
Search Googleby EAN or by Title
Query Time0.0089920

Article of interest

QR Codes are a type of 2 dimentional (2D) barcode that are commonly used in advertising and supported by most smart phones. These compact codes can make it very easy to get digital data from print into a computer or smart phone.

Originally created for the automotive industry, these codes have exploded into use in print on business cards, in magazines and even seen on web sites. This is because of the increased access to smart phones that can easily scan these codes and transfer the data to the user.

There are a number of uses for these codes. Web links, contact information (vCard) and other useful types of information. Here is an example of a QR Code that you can scan.

Barcode QR Code

The large square patterns you see in three corners of the image are used for positioning. The smaller box you can see in the lower right portion of the image is used for alignment. Connecting the positioning blocks are a series of timing blocks which always alternate light/dark (0/1).This allows the scanning device to recognize and scan regardless of how the pattern is oriented. To make this easier to identify, here is a colored version of the same QR Code with the positioning blocks marked in red, the alignment block is marked in yellow and the timing marks are marked in green.

Barcode QR Code

There are also sections for versioning and formatting which are kept around the positioning blocks. In the image below, the formatting blocks are marked in red and the versioning blocks are marked in yellow.

Barcode QR Code

The remaining blocks make up the content information and associated error correction data. As the amount of data grows, more alignment markers are inserted into the image. It is important to print the image in a large enough size. If the image is too small or too dense, scanners could have trouble reading the data back.

If you would like to create your own QR Codes, there are several web sites that let you do this. We actually have our own QR Code generator on this site where you can create your very own QR Codes for any use you like and it is totally FREE!

Create your own QR Codes

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