NFC(Near Field Communication)
What is NFC?
NFC is an abbreviation of Near Field Communication. Nowadays this feature integrated in many portable devices for the wireless communication between devices such as smartphones or tablets. It is a set of communication protocols which allows two electronic devices, one of which is commonly a portable device such as a smartphone, to establish communication. As the name implies, it allows a short range communication between compatible devices. Near Field Communication standards are defined by a group called the NFC Forum, which incorporates Nokia, Sony and Philips. Basically, if your phone has NFC as a feature it tends to be used to transfer data to other phones or to NFC readers. Compatibility is the way to the development of NFC as a popular payment and data communication method.
How does Near Field Communication works?
The technology used in NFC is based on older RFID (Radio-frequency identification) ideas, which uses electromagnetic induction so as to transmit information. Near Field Communication is another standard for wireless data transmission. Data transmission frequency of NFC is 13.56MHz, you can send data at either 106, 212, or 424 kilo bits per second. This frequency is quite sufficient for a range to transfer data such as contact details, pictures and music.
NFC Technology has three forms: Type A, Type B, and FeliCa. All are identical but interact in slightly different ways. FeliCa is usually used in Japan. Devices using NFC may be active or passive. NFC tag is a passive device which contains information that other devices can read but it does not read any information itself. Active devices can read information and also send it. Smartphone is an active device. It not only be able to collect information from NFC tags, but it would also be able to exchange information with other compatible phones or devices. It could even modify the data on the NFC tag whenever approved to roll out such improvements.