Image
EAN-139781164665724   EAN-13 barcode 9781164665724
Product NameHarvey Humphrey Baker: Upbuilder Of The Juvenile Court (1920)
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionPaperback
Amazon.comA Buy on Amazon ~ 1164665723
SKU9781164665724ING
Price New13.98 US Dollars    (curriencies)
Price Used15.89 US Dollars    (curriencies)
Width8.88 inches    (convert)
Height5.91 inches    (convert)
Length0.31 inches    (convert)
Weight7.04 ounces    (convert)
AuthorRoy M. Cushman
Page Count144
BindingPaperback
Published09/10/2010
Long DescriptionThis scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Created11-21-2012 11:06:32pm
Modified02-08-2014 8:06:49am
MD512c62fae681f71ca6d8803e9fe732e9f
SHA2561f1d8837a35ebc614b9d2b204159f023ade3baf79fa9e3dd25830ae9212bfe8f
Search Googleby EAN or by Title
Query Time0.0014470

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

Close

Search

Close

Share

Close

Dialog