qr code definition

My QR Code definition

When I first began using Shuffle 1QR digital cards, I had a very limited knowledge of just what a QR (Quick Response) code was. I thought of it as just a funny looking bar code. Just was another way of sharing a link. As often happens, a question was asked and off I go to find an answer. And the answer I found was so far over my head that I had to dig a little deeper and look for the meaning.

The QR code is fascinating. And so beyond my grasp of Science and Technology that I almost decided to just accept it as magic and let it go as that. ButI did wish to be able to answer basic questions. Without getting into the theory, here is what I discovered about this little square with the squiggly lines…Scanning a QR Card

Quick Response Code

Quick Response Code (QR code) is the trademark for a matrix bar code designed in 1994 in Japan for the automotive industry. QR codes contain data for a locator, identifier, or a tracker that points to a website or application, using four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to store the data.

The QR code system became popular due to its fast readability and greater storage capacity compared to a standard UPC bar code.

A QR code consists of black squares arranged in a square grid on a white background, which can be read by an imaging device such as a smartphone camera, and is processed and interpreted using Reed–Solomon error correction. The required data is extracted from the horizontal and vertical patterns of the image.

One-dimensional bar codes were designed to be mechanically scanned by a narrow beam of light. A QR code is detected by a 2-dimensional digital image sensor and digitally analyzed by a processor. The processor locates three large squares at the corners and use a smaller square near the fourth corner for size, orientation, and the angle of viewing. The small dots are then converted to binary numbers and validated with an error-correcting algorithm (Reed-Solomon codes).

Reed–Solomon error correction

Almost all two-dimensional bar codes use Reed–Solomon error correction to allow correct reading even if a portion of the bar code is damaged. These error-correcting codes were introduced by Irving S. Reed and Gustave Solomon in 1960. They have many applications, including consumer technologies such as CDs, DVDs, Blu-ray Discs, QR Codes, and other data transmission technologies. QR codes can also be used to display text, adding a vCard contact, and opening a Uniform Resource Identifier (URI).

My 1QR CardMy 1QR Card

Error correction makes it possible to create artistic QR codes that still scan correctly, but contain colors, logos, and other features. For example, both of these QR codes are for my personal Shuffle 1QR digital card. With the Reed–Solomon error correction, the image I placed over the QR Code itself is ignored (or erased) when the code is interpreted. Adding color and/or logos can really make your QR code stand out from the rest.


The QR codes themselves can be shared as links. I find it much easier to insert a text link into a text when using my phone. But sometimes the text link can be long and difficult to remember. Again using my personal 1QR digital card as an example, here is the text link: https://app.elify.com/vbc/dw7zv5bcss?t=3zvluw. I used https://app.bitly.com to shorten my link to: http://bit.ly/SandersCard.

QR codes are becoming more common in consumer advertising. A smartphone is used as the QR code scanner and converts it to standard URL for a website. QR codes have become a focus of advertising, providing a way to access a brand’s website more quickly. This increases the conversion rate and coaxes interested prospects by bringing the viewer to the advertiser’s website immediately.


The wide range of applications include commercial tracking, entertainment/transport ticketing, product and loyalty marketing and in-house product labeling. They can also be used in storing information for use by organizations. I recently read about a company in Japan that engraves a QR code on cemetery memorials. Shirt with QR Code

Many applications target smartphone users. Besides the applications I have mentioned, you can generate and print your own QR codes for others to scan and use by downloading a pay or free QR code-generating site or app. Google has free apps for generating and scanning QR codes.

QR codes may appear in magazines, signs, buses, business cards, t-shirts and other clothing or on almost any object. Anyone with a smartphone can scan the QR coder. This linking from physical objects is termed hard-linking or object hyperlinking.


I am, obviously, a fan of Shuffle by Elify. I am also an affiliate. I liked the 1QR digital cards so much that within a week of subscribing to Shuffle I upgraded my card count from the 10 provided with the subscription plan to 100 cards. I knew very quickly that I needed more than the 10 cards; personal, business, greeting card types, demo cards… I currently have about 25 digital cards in use and already plan on having at least 50 built within a few weeks.

Are you ready to take your business to the next level? Or maybe you would like to experience the 1QR digital card risk free? http://bit.ly/YourFree1QRCard to learn more about the 1QR card and to get your free card. And if you are ready to go with the Shuffle subscription, the same link will provide the option for signing up with Shuffle (and at a special discounted price!).

Would love to connect with you inside Shuffle! http://bit.ly/shuffle1a can tell you about the extras included in Shuffle by Elify.

And remember sign up for our e-mails and receive notices about articles here at Whytleigh Affiliates! http://bit.ly/WhytleighSign-Up

Walking the Path of Peace, Sanders

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10 thoughts on “qr code definition”

  1. I have had good experiences with the QR Coding systems in flea markets where it is being used by sellers to make payments. There is a purchase app that has your billing details logged in and the seller displays this code. Scan the code and enter the amount and the seller receives a notification that payment has been made. This code system has an array of applications and is really versitile. 

    Do you know of what direction this coding system is developing in terms of cashless payment systems?


    • Hi Rich, Glad you have had some good experiences with QR codes at flea markets. I have seen a little info about using the qr codes in a payment system but my focus was on information sharing and on the codes themselves. That is something I will have to look into. 

      Give me a bit of time and I will update this with a better understanding of the payment system method/types. Thanks for the question and for giving me another avenue of knowledge to walk!

      Walking the Path of Peace, Sanders

  2. Hi there,

    When I was reading the first paragraph, I was thinking the same as you, just a funny square. However, after reading all the article I found really good benefits on the QR code that can help you on create a simplify way to redirect people to web pages, easily and fast. Even though, I don’t really know how to scan those codes from my phone, and I don’t know how to use them, is it through an app ? . thanks for sharing.

    • Hi Andres,

      Honestly, I still think they are funny squares but now I know what they are for.  Most smartphone already have an app that scans the qr codes using the camera. Just line up the code inside the displayed box, hold it steady and the phone does all the rest. You can also download free apps from Google and/or Apple (takes about 1 minute or so). 

      Walking the Path of Peace, Sanders

  3. Here in Australia Qr codes are still used but I was wondering about the future until I read your blog.However ever I do understand that Apple has recently included a native Qr reader in the iOS camera meaning there is no need to download the app. This would point to far greater interaction and use.

    • Hi Peter, Glad I could help you out. And you are right, iPhones and Android are now producing phones with the QR scanner app already installed. I see a positive future ahead for the QR codes, seems to be gathering more popularity and is a great way to share information easily.

      Walking the Path of Peace, Sanders

  4. Well I have used QR Coding systems on numerous occasions now and I have to admit that I had no real idea how they worked, or how much technology has been put into them! 

    I have noticed that even the ‘smaller’ businesses are starting to trust them now, and in some cases outdoors temporary businesses are using them in the UK (summer months!). 

    Do you feel that this is now the safest way to pay/enrol with money these days?

    • Hi Chris, They are great for small to medium businesses. Easy to use and generate. For payments (incoming or outgoing), I still have trouble with PayPal! I’m not really up to speed on that side but I have heard of QR codes being used in some markets. Something for me to take a look into, thanks!

      Walking the Path of Peace, Sanders

  5. Throughout the last few years I have been seeing QR codes everywhere, but for the longest time I had no clue what they were and I thought they were ridiculous when I found out what they were actually used for. Fast forward to now, I’m a fan of QR codes and definitely see them as being useful and I can see them continuing to grow in popularity.

    • Hi Nate, I think the QR codes are only going to grow in popularity. The are amazing in the information they can share. Even if damaged or slightly worn, they can still be used.

      Walking the Path of Peace, Sanders


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