QR code - Wikipedia
QR Codes are a proven and easy-to-understand technology to bridge the gap between the physical (aka meatspace) and the digital world. You can encode any . Main · Videos; Dating a divorced man with children advice lilac petal dating sim · digitar codigo de barras online dating · marriage not dating dramafever app. Main · Videos; Digitar codigo de barras online dating. I haze to haze how sorry her haze is under the morning. It's scantily sorry to haze that – otherwise, etiam.
Examples of marketing include where a company's discounted and percent discount can be captured using a QR code decoder which is a mobile app, or storing a company's information such as address and related information alongside its alpha-numeric text data as can be seen in Yellow Pages directory. They can also be used in storing personal information for use by organizations. Many of these applications target mobile-phone users via mobile tagging. Users may receive text, add a vCard contact to their device, open a URI, or compose an e-mail or text message after scanning QR codes.
They can generate and print their own QR codes for others to scan and use by visiting one of several pay or free QR code-generating sites or apps. Google had an APInow deprecated, to generate QR codes,  and apps for scanning QR codes can be found on nearly all smartphone devices.
Users with a camera phone equipped with the correct reader application can scan the image of the QR code to display text, contact information, connect to a wireless networkor open a web page in the telephone's browser.
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This act of linking from physical world objects is termed hardlinking or object hyperlinking. QR codes also may be linked to a location to track where a code has been scanned. The coin can be scanned by a smartphone and link to a special website with contents about the historical event and design of the coin. When scanned with an internet-enabled mobile device, the code goes to a website which tells the centenary story of Nigeria. It contains a QR code into its design, and when scanned with an internet-enabled mobile device, the code goes to a website that details the historical and technical background of the commemorative note.
Inthe Bank of Ghana issued a 5-cedis banknote to commemorate 60 years of Central Banking in Ghana, and contains a QR code in its design, which when scanned with an internet-enabled mobile device, that code goes to the official Bank of Ghana website. Credit card functionality is under development. It will also have the capability of accepting payments on the unified payments interface UPI platform.
These devices support URL redirectionwhich allows QR codes to send metadata to existing applications on the device. Many paid or free apps are available with the ability to scan the codes and hard-link to an external URL. URLs[ edit ] URLs aided marketing conversion rates even in the pre-smartphone era, but during those years faced several limitations: Computer Identics Corporation installed one of its first two scanning systems in the spring of at a General Motors Buick factory in Flint, Michigan.
The other scanning system was installed at General Trading Company's distribution center in Carlstadt, New Jersey to direct shipments to the proper loading bay. Universal Product Code[ edit ] Main article: RCAwho had purchased the rights to the original Woodland patent, attended the meeting and initiated an internal project to develop a system based on the bullseye code. The Kroger grocery chain volunteered to test it.
Supermarkets on a Uniform Grocery-Product Code to set guidelines for barcode development. In addition, it created a symbol-selection subcommittee to help standardize the approach. The committee then sent out a contract tender to develop a barcode system to print and read the code. In the spring ofRCA demonstrated their bullseye code at another industry meeting. IBM executives at the meeting noticed the crowds at the RCA booth and immediately developed their own system.
IBM marketing specialist Alec Jablonover remembered that the company still employed Woodland, and he[ who? Barcodes were printed on small pieces of adhesive paper, and attached by hand by store employees when they were adding price tags. The code proved to have a serious problem; the printers would sometimes smear ink, rendering the code unreadable in most orientations. However, a linear code, like the one being developed by Woodland at IBM, was printed in the direction of the stripes, so extra ink would simply make the code "taller" while remaining readable.
The pack of gum and the receipt are now on display in the Smithsonian Institution. It was the first commercial appearance of the UPC. Bythe team were meeting with grocery manufacturers to introduce the symbol that would need to be printed on the packaging or labels of all of their products.
Yet, although this was achieved, there were still scanning machines in fewer than grocery stores by Those numbers were not achieved in that time-frame and some predicted the demise of barcode scanning.
The usefulness of the barcode required the adoption of expensive scanners by a critical mass of retailers while manufacturers simultaneously adopted barcode labels.
Neither wanted to move first and results were not promising for the first couple of years, with Business Week proclaiming "The Supermarket Scanner That Failed" in a article.
The detailed sales information acquired by the new systems allowed greater responsiveness to customer habits, needs and preferences.
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It was shown in the field that the return on investment for a barcode scanner was By8, stores per year were converting. At the point of sale, shoppers can get product discounts or special marketing offers through the address or e-mail address provided at registration. Example of barcode on a patient identification wristband They are widely used in the healthcare and hospital settingsranging from patient identification to access patient data, including medical history, drug allergies, etc.
They are also used to facilitate the separation and indexing of documents that have been imaged in batch scanning applications, track the organization of species in biology,  and integrate with in-motion checkweighers to identify the item being weighed in a conveyor line for data collection. They can also be used to keep track of objects and people; they are used to keep track of rental carsairline luggagenuclear wasteregistered mailexpress mail and parcels.
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Barcoded tickets allow the holder to enter sports arenas, cinemas, theatres, fairgrounds, and transportation, and are used to record the arrival and departure of vehicles from rental facilities etc.
This can allow proprietors to identify duplicate or fraudulent tickets more easily. Barcodes are widely used in shop floor control applications software where employees can scan work orders and track the time spent on a job. Barcoded parcel Barcodes are also used in some kinds of non-contact 1D and 2D position sensors.
A series of barcodes are used in some kinds of absolute 1D linear encoder. The barcodes are packed close enough together that the reader always has one or two barcodes in its field of view.
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As a kind of fiducial markerthe relative position of the barcode in the field of view of the reader gives incremental precise positioning, in some cases with sub-pixel resolution. The data decoded from the barcode gives the absolute coarse position. An "address carpet", such as Howell's binary pattern and the Anoto dot pattern, is a 2D barcode designed so that a reader, even though only a tiny portion of the complete carpet is in the field of view of the reader, can find its absolute X,Y position and rotation in the carpet.
A capable cellphone might be used to read the pattern and browse the linked website, which can help a shopper find the best price for an item in the vicinity. In the s and s, software source code was occasionally encoded in a barcode and printed on paper Cauzin Softstrip and Paperbyte  are barcode symbologies specifically designed for this applicationand the Barcode Battler computer game system used any standard barcode to generate combat statistics.
Artists have used barcodes in art, such as Scott Blake's Barcode Jesus, as part of the post-modernism movement. Symbologies[ edit ] The mapping between messages and barcodes is called a symbology.
The specification of a symbology includes the encoding of the message into bars and spaces, any required start and stop markers, the size of the quiet zone required to be before and after the barcode, and the computation of a checksum. Linear symbologies can be classified mainly by two properties: There is an additional space between characters, but it does not convey information, and may have any width as long as it is not confused with the end of the code.
Characters in continuous symbologies are composed of n bars and n spaces, and usually abut, with one character ending with a space and the next beginning with a bar, or vice versa. A special end pattern that has bars on both ends is required to end the code. The precise width of the wide bars and spaces is not critical; typically it is permitted to be anywhere between 2 and 3 times the width of the narrow equivalents.
These are normally also considered binary bar codes. Bars and spaces in many-width symbologies are all multiples of a basic width called the module; most such codes use four widths of 1, 2, 3 and 4 modules. Some symbologies use interleaving.
The first character is encoded using black bars of varying width.