Red Tacton in Biometrics-1
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RED TACTON IN BIOMETRICS
1.ABSTRACT
Red Tacton is a Human Area
Networking technology that uses the surface
of the human body as a safe, high speed
network transmission path. The human body
acts as a transmission medium supporting
half-duplex communication at 10Mbit/s. It
uses the small electric field on the surface of
the human body and then uses this electric
field for further transmissions. Red Tacton
takes wireless communication a step further
by replacing the radio waves used for
transmission over Bluetooth, IR and similar
technologies with the minute electrical field
emitted by the human body. This technology
paves the way for a new breed of accesscontrol systems that are not based on remote
controls or access cards that rely on radio
waves that could be interfered with. This
paper deals with usage of Red Tacton in
biometrics by placing a bio-chip inside the
wrist. The person with the chip is only
allowed to open the door or access the data.
If this technology is implemented, it will be
the safest technology to be used for
biometrics. The weak electric field used
does not affect the human body. The
connection is not initiated until the person
physically touches two different Red
Tacton-enabled devices, when the person
touches the device the circuit is fulfilled, and
then authentication is verified. This
technology can be used where there is need
of high security. Red Tacton could be
installed on doors, cabinets and other
locations calling for secure access, such that
each secure access could be initiated and
authenticated with a simple touch. At the
same time, all the transaction details and
relevant user attributes (personal identity,
security clearance, etc.) could be logged by
the security system.
2.INTRODUCTION
NTT, the Japanese telecoms group,
and the team of scientists invented the Red
Tacton system. "Tacton" refers to the
communication starts by touching (Touch),
leading to various actions (Act on). We then
added the color red to convey the meaning
of warmth in communication. Combining
these phrases led to the name, "Red Tacton".
Human Area Networking (HAN), a network
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where communication takes place via Red
Tacton transceivers embedded in devices
like PCs and cameras and in tags carried in.
The connection is not initiated until the
person physically touches two different Red
Tacton-enabled devices, say, a laptop and a
printer. Red Tacton does not require the
electrode be in direct contact with the skin.
High-speed communication is possible
between two arbitrary points on the body.
Red Tacton enables new generation of user
interface based on totally natural human
actions such as touching, holding, sitting,
walking, or stepping on a particular spot.
In the past, Bluetooth, infrared
communications (IrDA), radio frequency ID
systems (RFID), and other technologies
have been proposed to solve the “last meter”
connectivity problem
.
However, they each have various
fundamental technical limitations that
constrain their usage, such as the precipitous
fall-off in transmission speed in multi-user
environments producing network
congestion. Human Area Networks performs
communication within the much smaller sphere of ordinary daily activities– the last
one meter. NTT’s Red Tacton is a break-
through technology that, for the first time,
enables reliable high-speed HAN which
provides uninterrupted services based on
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human-centered interactions and therefore
more intimate and easier for people to use.
A Red Tacton transmitter couples with
extremely weak electric fields on the surface
of the body. The weak electric fields pass
through the body to a Red Tacton receiver,
where the weak electric fields affect the
optical properties of an electro-optic crystal.
The extent to which the optical properties
are changed is detected by laser light which
is then converted to an electrical signal by a
detector circuit.
3.WORKING
Red Tacton takes a different technical
approach. Instead of relying on
electromagnetic waves or light waves to
carry data, Red Tacton uses weak electric
fields on the surface of the body as atransmission medium. Using a new super-
sensitive photonic electric field sensor, Red
Tacton can achieve duplex communication
over the human body at a maximum speed
of 10 Mbps.
1. The Red Tacton transmitter induces a
weak electric field on the surface of the
body.
2. The Red Tacton receiver senses changes
in the weak electric field on the surface of
the body caused by the transmitter.
3. Red Tacton relies upon the principle that
the optical properties of an electro-optic
crystal can vary according to the changes of
a weak electric field.
4. Red Tacton detects changes in the optical
properties of an electro-optic crystal using a
laser and converts the result to an electrical
signal in a optical receiver circuit.
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4.RED TACTON – FEATURES
E-Extraordinary P-Pass
The chart below shows the
positioning of Red Tacton with respect to
existing communication technologies. The
focus on ubiquitous service has brought
about the shortening of distances in
communication. Red Tacton is positioned as
the last 1m solution to ultimate close-range
communication.
Evaluation criteria
Wireless
Infrared data
communication
RED
TACTON
Wireless
LAN
Close
range
wireless
Contact
les IC
cards
Passive
wireless
ID tag
C o m m u n i c a t i o n
p e r f o r m a n c e
Transfer speed E P P P P E
Performance
deterioration during
periods of consegation E P P P P E
Duplex data transfer E E E P E E
U s e r c o n
v e n i e n c e
Data configuration at
initiation of
communications E E P P E E
Tasks required at time
of each communicationE E P E P E
Synchronization with
user behavior
P P E E P
E
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5. IMPLEMENTING RED TACTON IN
BIOMETRICS
Touching, gripping, sitting, walking,
stepping and other human movements can
be the triggers for unlocking or locking,
starting or stopping equipment, or obtaining
data.
The biometrics can be done by
placing a bio-chip inside the hand, which is
a red tacton reciever. When the
authenticatve person touches the door
handle, from the transciever the signals flow
through through the body and and checks
the bio-chips for authentication. If bio-chip
is present then it checks whether the person
is allowed then the door opens or else the
door never opens at any means.
Using Red Tacton, communication
starts when terminals carried by the user or
embedded in devices are linked in various
combinations through physical contact
according to the human’s natural
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movements. The technology uses a
transmission path established between the
body of a person carrying a Red Tacton card
key and a Red Tacton transceiver installed
in, for example, a doorknob or floor. The
person is automatically identified when they
touch the doorknob or walk on the floor, and
the transmission path is disconnected when
the body and transceiver physically separate.
With this technology we can lock our house
by just touching the door knob. The
transmission doesn’t enter the skin but is
merely carried across the surface, not
exposing the user to more electricity. In
addition, the transceiver is covered with an
insulation layer. In addition to the human
body, various conductors and dielectrics can
be used as transmission media. Also
carrying a mobile Red Tacton-capable
device in one’s pocket, ID is verified and the
door unlocked when the user holds the
doorknob normally. Secure lock
administration is possible by combining
personal verification tools such as
fingerprint ID or other biometric in the
mobile terminal.
If this technology
implemented, then this will be great
milestone in the field of biometrics.
6. ADVANTAGES
The benefit of Red Tacton -
compared to transmission technologies using
radio waves - is that transmission speed does
not deteriorate in congested areas where
many people are communicating at the same
time. A Red Tacton receiver in a cabinet
where important documents are stored
enables lock administration and keeps a
record of who accessed documents at what
time. Carrying a mobile Red Tacton-capable
device in one's pocket, ID is verified and the
door unlocked when the user holds the
doorknob normally. Outside the office, Red
Tacton offers a host of communication
options that might come in really handy. For
example, it lets you transfer pictures from
your camera just by touching the PC while
the camera is around your neck. And since
data can pass from one human body to
another, you may also swap electronic
business cards by shaking hands.
7. CONCLUSION
Human society is entering an era of
ubiquitous computing, when networks are
seamlessly interconnected and information
is always accessible at our fingertips. Red
Tacton is a break-through technology that,
for the first time, enables reliable high-speed
HAN. The advent of Red Tacton technology
by NTT is in itself revolutionary, which will
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likely be targeted for use in applications
such as wireless headphones, wearable
medical devices, security applications,
point-of-sale interactions etc. This could get
as simple as two people equipped with Red
Tacton devices being able to exchange data
just by shaking hands. Red Tacton will
emerge as a technology that we use in our
day to day life in the near future.
8. REFERENCES
1.http://www.redtacton.com/en/info/index.ht
ml
2.http://www.sourcesecurity.com/technology-areas/biometrics/news/co-3108-
ga.4590.html
3. Julian Ashbourn ,“PracticalBiometrics”,pages 200-224, 2004Edition.
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