Near field communication, or NFC, is a short-range wireless technology that lets two compatible devices held within a few centimeters of one another exchange small amounts of data, commonly used for contactless payment, transit tickets and pairing other devices. It was developed jointly by the companies Philips and Sony and formalized as an international standard in 2003, building on earlier radio-frequency identification technology. NFC chips are now built into most smartphones and many payment cards, powering contactless payment systems and quick data-sharing features between nearby devices.
Facts
SignificanceEnables contactless transactions, data exchange and simplified setup of more complex communications such as Wi-Fi. 1 FAQs
How close do two devices have to be for NFC to work?
NFC typically works within about 2 centimeters; the certified compliant range is 5 millimeters.
NFC is a very short-range radio link. The NFC Forum, the body that writes its specifications, gives a typical range of up to 2 centimeters, and it sets the certified compliant range of NFC Forum connections at 5 millimeters. That is why NFC use centers on a tap, with the device held right against the reader or tag, and why it works over a radio at a base frequency of 13.56 MHz rather than across a room like Wi-Fi or Bluetooth.
Connections
In Field
Source Near-field communication - Wikipedia
Sources
1. Near-field communication - Wikipedia
Infobox, year_started
2002 (Co-invented by NXP and Sony)
NFC standards
Present and anticipated applications include contactless transactions, data exchange and simplified setup of more complex communications such as Wi-Fi.
- In Group: Short-Range Wireless Communication Technologies, Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1+1/2 in) or less.
In Field: Computer Engineering, Introduction
Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1+1⁄2 in) or less.
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