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EAN-139780746097151   EAN-13 barcode 9780746097151
Product NameStar Maker
CategoryBook / Magazine / Publication
Short DescriptionPaperback
Amazon.comA Buy on Amazon ~ 0746097158
SKU6639372
Price New4.77 US Dollars    (curriencies)
Price Used1.47 US Dollars    (curriencies)
Width0.47 inches    (convert)
Height7.8 inches    (convert)
Length5.12 inches    (convert)
Weight110 hundredths pounds    (convert)
AuthorCindy Jefferies
BindingPaperback
Published06/27/2008
Long DescriptionBOOKS
Created11-16-2012 5:25:00pm
Modified09-09-2018 9:44:04am
MD56f56689f71dbf64348523d1c1bbbebb2
SHA25663068e128c3ee4f4f18d158b75c297a30101abfd50f0cacf9e823d0f2aaf7045
Search Googleby EAN or by Title
Query Time0.0055380

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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