NFC

Introduction
NFC or Near Field Communication is a simple technology allowing to use your mobile phone in innovative purposes. An NFC tag can be linked to informations as a web page, social network, etc. The NFC begin to evolve in other area as payments, doors control with securised lock, computers connection and more. All these actions have a common point: you have to put your smartphone (or an other NFC device) near the element with wich you want to interract.

The NFC technology make the link between the physical and the virtual world. By placing two devices close to each other, a virtual reaction is made. Bluetooth and wifi aren't as easy to set up. Therefor, the main caracteristic of NFC is that it is automatic, it doesn't require an application... It just works!

In more technical terms, the NFC defines the process by which two products communicate between them. The NFC is a by-product of the technology RFID at shorter distance of action (10cm in theory, 4 cms in reality) which uses low speeds (kbps 106-414) and an installation with low friction (no discovery and no matching), what allows then two devices to communicate automatically when they are close one of the other one.

Application
The main purpose is the payment. Bank cards without contact are more and more common and a NFC phone can do that. It means that when you are in a shop, rather than using your standart bank card, you can put your phone near the "reader" device and make your payment.

An other common application is the securised access control. Many offices and public places possess readers without contact who keep locked doors and the authorized people can use an access pass to open the door. Once again the telephone NFC can play the role of the access pass and open you doors, when it is obviously placed in the field (F NFC) of the reader.