Near Field Communication (NFC) is a contact-less communication technology
based on a radio frequency (RF) field using a base frequency of 13.56 MHz (HF
range of RFID). It is designed to exchange data between two devices through a
distance of 10cm or less. Normally it uses for contact-less payments via mobile
wallets like Apple Pay, Android Pay, as well as contact-less cards. NFC is based
on RFID protocol with 2 ways communication and treated as a subset of RFID
family. There are two main types of NFC devices: Passive communication NFC devices
and active communication NFC devices. Passive devices have no power source
and can only connect to active devices. Active devices have a power source and
can send and receive data by switching between the normal active (transmitting)
state and a passive (receiving) state.
The NFC Forum Certification Mark is a global indicator that a device implementation
has met the standards of the NFC Forum Compliance Program. Compliance
applicants should join as NFC Forum member and use of the Certification Mark
is granted once the NFC Forum Certification process is completed.