Image
EAN-139781141892877   EAN-13 barcode 9781141892877
Product NameAb Urbe Condita Libri I, Ii, Xxi, Xxii.: Adjunctae Sunt Partes Selectae Ex Libris Iii, Iv, Vi. (Latin Edition)
CategoryBook / Magazine / Publication
Short DescriptionHeight:7.32 inches / Length:0.9 inches / Weight:1.76 pounds / Width:9.53 inches
Amazon.comA Buy on Amazon ~ 1141892871
SKU1925890
Price New20.90 US Dollars    (curriencies)
Price Used27.25 US Dollars    (curriencies)
Width0.91 inches    (convert)
Height9.69 inches    (convert)
Length7.44 inches    (convert)
Weight28.16 ounces    (convert)
AuthorLivy
Page Count450
BindingPaperback
Published01/01/2010
Long DescriptionThis is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Created10-23-2013 11:39:04am
Modified08-28-2016 11:45:30am
MD582069662bb0b2b8bfcf10aa43ba59a01
SHA256b9f531220d62f0b6a62708c8753a8382ebfd2b173b3129d8abe0db811c7aa38a
Search Googleby EAN or by Title
Query Time0.0064859

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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