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Understanding QR Codes This is a very comprehensive QR Code Primer that will provide you with a solid understanding of the technology — book mark it for future reference.

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The idea of digitally connecting consumers of your paper-based content to the internet is a powerful concept.

If you find this interesting read on. The QR code reader technology ships with most cell phones in Asia, but this is not the case in the US. Consumers currently have to down load third-party applications to decode QR codes. There are dozens of these applications available from other websites, and most of them are free. It is widely thought that the bilgller will start making QR code readers a standard app on most cell phones in the near future.

In addition, we have we have Google embracing the technology in the Android OSand Facebook has been experimenting with these codes as well. So, what are these codes? They have been described as paper-based hyperlinks, and bilgjler is a good description. They can also be used digitally — you can append a QR code to a Tweet, or they can be displayed on a web page to transfer contact information directly to the cell phone, for example.

This technology is blurring the distinction between smart phones, digital destination and content, and paper-based communication mediums. Once the QR code has b. This unadorned code can be visually modified to a certain extent. For example, a number of bilgjler are providing custom QR codes for businesses that incorporate their logo or an image. These custom codes are referred to as Design QR Codes. In the case of the first code the image heart lies on top of a number of the QR code cells, thus obscuring some of the information.

However this is not a problem because the information is recreated by the Solomon-Reed error correction code used in the technology. In the second code, the individual cells are not obscured by the Lufthansa image, and the decoder can actually read all the cells. In this case the error correct algorithm is treating the logo as if it was a smudge, and correctly decodes the information.


Micro QR codes have a very small footprint and were designed to encode small amounts of data, such as a serial number. They can encode from 6 to 21 alphanumeric characters — useful for a URL, and from 5 to 35 numeric characters — great for a phone number. This new code has the following characteristics: What are the possibilities? They show up in magazine ads, maps, food packaging, posters, leaflets, business cards, emails, websites and on the sides of buses.

With these vehicles in mind, the current technology could be used in the following manner: QR codes represent data in 2D — that is information is encoded both vertically and horizontally in the code. The API allows the user to generate three different footprints — small, medium and large. While this particular QR code represents only 12 text characters, they have the ability to encode up to: These are maximum numbers, and the amount of text space available to you depends upon which of the four error correction schemes are used.

The error correction algorithm is based upon Reed-Solomon, and comes in five flavors: Level L and M are most suitable for codes found in clean environments. Level Q and H are for dirty environments, as in manufacturing plants. The error correction level that you use will dictate the amount of text that can be encoded. In general, a more robust the error correction level results in a smaller text message footprint.

For example, Level L will allow you to encode 4, characters, while Level H only allows for 1, characters. A QR code is a square with an equal number of rows and columns. They start at 21 rows and columns, and increment by fours.

The next size up is 25 rows and columns, and the next after that are 29 rows and columns. This increment continues until the fortieth step which is rows and columns. Each step is called a version, and there are 40 versions available. The following QR code is an example of version eight, and contains alphanumeric text.

This QR code contains amandas personal contact information, and required 49 rows and columns to encode the information. This version is visually much more complex than the code above. I chose the large footprint for display in this instance.

A basic QR code contains five major sections that provide the following functions: The number of alignment patterns used depends upon how much information is being encoded. QR codes also have linking functionality.

This means that a single large code can be divided into two or more codes, up to a maximum of 16 codes. This allows for the delivery of larger data sets that can more easily be decoded.


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This also provides many more printing options when all you have is a small linear space to insert your QR codes. The top code below contains the same information as the four codes beneath.

If you wish to experiment with QR codes there are plenty of sites where you can generate codes for free. You can generate QR code links to your website in seconds. QR Codes are good for Local Businesses. As well, there are many tteknik for free QR Code Readers for your specific smart phone.

Organizations are getting creative about the usage, and the visual display of QR codes. The following example is an interesting photo QR code. QR Codes are not in wide spread use in the US yet, but all the technology parts are in place and ready to be exploited.

Major US Internet-based companies, and well-known retailers are embracing the technology — and early adaptors consumers are experimenting with them. QR Codes are cool, and are perceived to be cutting edge — even though they have been around since QR Codes are so easy to use, and are so versatile that they provide instant value to individuals and companies alike. This technology will increasingly play an enabling role in future ajanvas strategy for product sales, information access and promotional programs.

How do you plan to use them? Leave a comment and let me know. Here is the first paragraph: Nov 3, at Search marketers are interested in print-based hyperlinks: The Microsoft Tag is emoo distinctive in nature, and has an American southwestern look about it.

The platform allows you to use two, four or eight colored triangle in a grid matrix. The first tag, which is based on four colors and a five by ten grid matrix, encodes a URL link to my blog. The second tag uses just two colors — black and white. The second tag contains seven rows, though both contain the same information.

As with QR Codes, Microsoft tags are meant to provide digital links between traditional printed media and digital content. To that end, Microsoft tag supports four basic content types: URLs, free text, vCards and a dialer.

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