1. NEAR FIELD
COMMUNICATION
By :Amit Patel (RK University,Rajkot)

2. INTRODUCTION
 NFC is one of the latest short-range wireless connectivity
technology, •NFC offers safe simple and • communication
between electronic devices. Users of NFC-enabled devices
can simply point or touch their devices to other NFC-
enabled elements in the environment to communicate with
them, making application and data usage easy and
convenient.
 With NFC technology, communication occurs when an
NFC- compatible device is brought within a few centimeters
of another NFC device or an NFC tag.
 The big advantage of the short transmission range is that it
inhibits eavesdropping on NFC-enabled transactions. NFC
technology opens up exciting new usage scenarios for

3. EVOLUTION OF NFC
TECHNOLOGY
 In 2004, NFC Forum was formed by
Nokia, Philips, Sony,to set standards for NFC . Every
NFC enabled device will have “N-Mark” trademark
,developed by NFC Forum.
N MARK
TRADEMARK

4. EVOLUTION OF NFC
TECHNOLOGY
 In 2006
First mobile phone( nokia 6131) with NFC released
by NOKIA.

5. How NFC Works
•Operates at 13.56 MHz
•Transfers data at up to 424
bits/sec
 1) Coil in the first smart phone sets up a current that is
picked up a second smart phone or reader.
 2) The second smart phone receives the ―induced current‖ from
the first, recognizes it as a valid signal and offers a connection.
 3) The first cell phone accepts the connection and begins the
transaction.

6. Mobile devices, NFC has three
modes of operation
This NFC mode enables mobile devices to
read data stored in passive RFID tags
embedded in public posters, displays, and
products — and to act upon that data that
contains a Uniform Resource Locator
(URL), which is an Internet encoding of
access instructions for a file or Web
address, or instruction for making a call, or
Reader/Writer the SMS instruction for sending a text
message. This NFC mode also enables
mobile devices to write data to some tags –
notably virtual tags in other devices.

7. Conti..
This NFC mode enables mobile device
owners to make a contactless
business transaction, in the same way
smart cards are used today. This
mode of operation enables mobile
devices to be used for
identification, payment and access
control applications.
Card Emulation

8. Conti..
This NFC mode enables mobile
devices to more easily interact with
each other (i.e., each phone has to
be equipped with NFC and the
enabling applications) to quickly
launch a mobile communications
bearer for sharing data with each
other, whether to exchange business
cards, photos, documents or other
Peer to Peer
type of personal information in “peer-
to-peer” data transfers.

9. APPLICATION OF NFC
 NFC applications can be split into the
following three basic categories:
 Touch and Go
 Touch and Confirm
 Touch and Connect

10. APPLICATION OF NFC
 Touch and Go
Applications such as access control or transport/event
ticketing, where the user needs only to bring the device
storing the ticket or access code close to the reader.
Example for picking up an Internet URL from a smart label
on a poster.
Touch
and go
Mode of
applicat
ion

11. APPLICATION OF NFC
 Touch and Confirm
Applications such as mobile payment where the user
has to confirm the interaction by entering a password
or just accepting the transaction.

12. APPLICATION OF NFC
 Touch and Connect
Linking two NFC-enabled devices to enable peer to
peer transfer of data such as downloading
music, exchanging images or synchronizing address
books.
Data
transfer
via NFC

13. COMPARISON WITH EXISTING
TECHNOLOGY

14. ADVANTAGES OF NFC
 Make payments or use coupons via
devices, instead of credit or debit cards
 Transfer files and share documents
 Download information about objects, services or
places from “smart posters”
 Display electronic identity documents, like air
travel boarding passes
 Faster and easier payments
 Quick access to information

15. DISADVANTAGES OF NFC
 The system has the limitation that it can be operated
only with devices under a short range i.e around 10
cm.
 The data transfer rate is very less at about
106kbps, 212 kbps and 424kbps.

16. DEVICES WITH NFC
TECHNOLOGY

17. CONCLUSION
 Mobile handsets are the primary target for NFC and soon
NFC will be implemented in most handheld devices. Even
though NFC have the shortest range among radio frequency
technologies, combining them with existing technologies
like Bluetooth or Infrared can increase its range of
applications.