1. RED TACTON –DATA TRANSMISSION
TECHNOLOGY
BHARTI VIDYAPEETHS COLLEGE OF ENGINEERING, GSSIP
UNIVERSITY,DELHI
Chetna Deepali
tk.chetna@gmail.com rdeepali92@gmail.com
Instrumentation and control(III YEAR) Instrumentation and control(III YEAR)
ABSTRACT : body as a safe, high speed network
transmission path.
In an age where information is being
considered as the blood of this century, the RedTacton takes a different technical
very idea of transmitting such data or approach. Instead of relying on
information to someone very specific sends electromagnetic waves or light waves to carry
these cold waves all around our body. With so data, RedTacton uses weak electric fields on
many hackers and other anti-social elements the surface of the body as a transmission
spread all around the world, secure data medium. A RedTacton transmitter couples
transmission is considered to be a myth these with extremely weak electric fields on the
days. With the recent technological surface of the body. The weak electric fields
advancements success has been achieved to an pass through the body to a RedTacton
extent in tackling the above stated issue. One receiver, where the weak electric fields affect
such solution to this issue is the RED the optical properties of an electro-optic
TACTON devices which are going to make crystal. The extent to which the optical
their mark very soon. And when they are out properties are changed is detected by laser
all the problems related to secure, efficient, light which is then converted to an electrical
reliable, hi speed data transmission will be signal by a detector circuit.
solved. Yes they are going to be solved!! - RedTacton uses the minute electric field
emitted on the surface of the human body.
The paper here unleashes the various Technically, it is completely distinct from
applications that are possible through these wireless and infrared.
small devices which can literally rest - A transmission path is formed at the
anywhere on the body or any dielectric moment a part of the human body comes in
medium for that matter. With a wide range of contact with a RedTacton transceiver.
applications starting from personalization, Physically separating ends the contact and
conferencing system, security applications and thus ends communication.
many more, RED TACTON technology is a - Using RedTacton, communication starts
giant leap in the field of HUMAN AREA when terminals carried by the user or
NETWORKING. embedded in devices are linked in various
combinations according to the user's natural,
physical movements.
1.INTRODUCTION :
- Communication is possible using any body
surfaces, such as the hands, fingers, arms,
Red Tacton is a new Human Area Networking
technology that uses the surface of the human

2. feet, face, legs or torso. RedTacton works According to NTT this technology - which can
through shoes and clothing as well. also be made to works when door handles,
switches or turnstiles are touched - allows bi-
directional signals to be sent at rates of up to
2. BACKGROUND – HUMAN AREA
10 Mbit/s. The strength of the electrostatic
NETWORK
fields evoked the company puts at but a few
hundred mill watts. Prior to the stage planned
for 2006 in which the HAN technology is to
At the end of 2002 the Japanese telecomm-
be ready for the market, NTT intends to
unications group NTT had announced that it
conduct a number of field tests this summer,
would
in which it is inviting companies with an
interest in the technology to participate .
Japanese company Nippon Telegraph and
Telephone Corporation (NTT) claims to have
developed the first viable Human Area
Network (HAN) device, enabling fast data
transfer between devices using the human
body as a conduit. NTT reckons this latest
RedTacton PC card prototype advance on the wireless Personal Area
Network concept - dubbed RedTacton
develop a new data transmission technology - can transmit data over the surface of the
that uses the conductive properties of the skin at up to 2Mbps. Where it differs,
human body to exchange information between though, from previous offerings, is that a
electronic devices. With RedTacton the RedTacton-enabled device does not have to
company has now scarcely two and a half be in direct contact with the skin - only
years later presented its first prototype of a within about 20cm.
Human Area Network (HAN).
The basic principle of the RedTacton concept 3. HOW DOES RED TACTON WORKS ?
is the creation of minute electrostatic fields
that modulated by a code-giver to carry digital Red Tacton does not rely on electromagnetic
information are capacitively transmitted to or light waves to transmit data.. It makes use
human skin as a conductor, thence to be of weak electric fields on the surface of the
transmitted upon physical contact. To read out body.. The transmitter sends data by inducing
the data bits NTT makes use of a novel type of fluctuations in the minute electric field on the
opto-electrical receiver equipped with a surface of the human body. Data is received
miniature laser whose light ray is reflected by using a photonic electric field sensor that
a crystal. combines an electro-optic crystal and a laser
light to detect fluctuations in the minute
At the receiving end the electrostatic fields electric field. The Red Tacton receiver senses
evoked by the RedTacton sender cause the changes in the weak electric field on the
electrical field in the environment of the surface of the body caused by the transmitter.
crystal to change, which in turn induces
Red Tacton relies upon the principle that the
changes in the polarization of the reflected
optical properties of an electro-optic crystal
laser light. These changes in polarization the
can vary according to the changes of a weak
opto-electrical receiver interprets as data bits,
electric field. Red Tacton detects changes in
which it converts into electrical signals that
the optical properties of an electro-optic
can be processed by a PDA, for instance.
crystal using a laser and converts the result to
an electrical signal in a optical receiver circuit.

3. terminals carried by the user or embedded in
The naturally occurring electric field induced devices are linked in various combinations
on the surface of the human body dissipates according to the user's natural, physical
into the earth. Therefore, this electric field is movements. Communication is possible using
exceptionally faint and unstable. The photonic any body surfaces, such as the hands, fingers,
electric field sensor developed by NTT arms, feet, face, legs or torso. RedTacton
enables weak electric fields to be measured by works through shoes and clothing as well.
detecting changes in the optical properties of
an electro-optic crystal with a laser beam. Using a new super-sensitive photonic electric
field sensor, RedTacton can 5 achieve duplex
4. Principle of Communication communication over the human body.
1. The RedTacton transmitter induces a
A Red Tacton consists of a transceiver and an weak electric field on the surface of
electro optical sensor crystal which is used for the body.
sensing the optical property of the electrical 2. The RedTacton receiver senses
field on the surface of the body. changes in the weak electric field on
the surface of the body caused by the
transmitter.
RedTacton uses the minute electric field 3. RedTacton relies upon the principle that the
emitted on the surface of the human body. optical properties of an electro-optic crystal
Technically, it is completely distinct from can vary according to the changes of a weak
wireless and infrared. A transmission path is electric field.
formed at the moment a part of the human
body comes in contact with a RedTacton 4. RedTacton detects changes in the optical
transceiver. Physically separating ends the properties of an electro-optic crystal using a
contact and thus ends communication. Using laser and converts the result to an electrical
RedTacton, communication starts when signal in an optical receiver circuit.

4. 5. MECHANISM OF COMMUNICATION
WITH RED TACTON
The electric field induced towards the body by The electric field ES that reaches the receiver
the transmitter‘s signal electrode is is
represented by E A. The system requires a Es =Ea – ( Eb + Ec ). It couples to the electro
ground close to the transmitter signal
–optic crystals and changes the crystal’s
electrode, so electric field EB induced from the
body can follow a return path to the optical properties. This change is detected by
transmitter ground. Moreover, since people
the laser light and transformed into a digital
are usually standing on a floor or the ground,
electric field EC escapes from body to the data by a detector circuit.
ground.

5. Data
configuration at
WL CRW CIC PWT IR RT
initiation of
E E P P E E
communications
(Registration of
ID profiles, etc)
Tasks required
at time of
each
communication E E P E P E
(Adjustment of
contacts and
optical axis)
Synchronization
with
user behavior P P E E P E
(Specification of
user positioning)
6. HOW IS RED TACTON BETTER THAN communication techniques.
ANY OTHER WIRELESS TECHNOLOGY ? 6.2 Comparison with other Human
6.1 Comparison of Red Tacton with other Communication Methods
Technologies
On comparison with other technologies here
Red Tacton surpasses other communication we apply electric field photonics which can be
techniques in terms of performance and user used for capacity coupling between equipment
convenience. and the earth ground. It can communicate
This is depicted by a comparison table where through any part of the body whereas in other
E stands for excellent and P stands for poor human communication system it utilizes a
Here the various communication techniques particular part of body for data transfer.
that are compared are – Duplex communication can be established
between mobile terminals and also between
WL - Wireless LAN mobile terminals and external equipments.
CRW - Close Range wireless
CIC - Contactless IC Card 6.3 Advantages over Bluetooth and RFID
PWT - Passive Wireless ID Tag Here the technology is clearly
IR - Infrared Standards advantageous over Bluetooth and RFID in the
RT - Red Tacton following factors
(1) The Traffic and Network congestion
Transfer speed, Simultaneous access and does not occur here and it decreases
Interactive Processing are of excellent with increase in number of users
Nature in Red Tacton rather than other joining the network. It highly supports
interactive processing.

6. (2) It greatly reduces the power Red Tacton can utilize a wide range of
consumption and cost of transmission materials as a transmission medium , as
media under usage. long as the material is conductive and
(3) The data transfer rates are very dielectric, which includes water and other
impressive and it ranges to maximum liquids, various metals ,certain plastics,
of 10 Megabits per second. glass, etc. using ordinary structures , one
(4) It turns our body into a swipe card could easily construct a communication
which can be applied in security environment at very low cost using Red
purposes. Tacton.
(5) It can be applied for security
purposes in a variety of domains. 3) BROADBAND AND INTERACTIVE :
Duple, interactive communication is
7. FEATURES OF RED TACTON possible at a maximum speed of
10Mbps.Becausethe transmission path is
Red Tacton has three main features .they are on the surface of the body, transmission
as follows : speed does not deteriorate in congested
areas where many people are
1) TOUCH : communicating at the same time.
Communication is not just confined to the
Communication with just a touch or a surface of the body, but can travel
step. A communication path can be through the user’s clothing to a Red
created with a simple touch, networked Tacton device in a pocket or through
process. shoes to communicate with a Red Tacton
device embedded in the floor.
2) ANY MEDIA :

7. RedTacton devices embedded medicine
bottles transmit information on the medicines'
attributes. If the user touches the wrong
medicine, an alarm will trigger on the terminal
he is carrying. The alarm sounds only if the
user actually touches the medicine bottle,
reducing false alarms common with passive
wireless ID tags, which can trigger simply by
proximity.
Examples of Similar Applications
8. APPLICATIONS OF RED TACTON
 Alert and contact record at medical,
long-term care, and childcare facilities.
There are six major applications that are  Avoidance of risk at construction sites
done using Red Tacton (an alarm sounds if special equipment
(1) One to One Services is handled by anyone other than
(2) Intuitive operations supervisors).
(3) Personalization (B) Marketing Applications (Context
(4) New Behavior patterns Awareness)
(5) Security applications
(6) Communication in new domains
(1) One to One Services:
Enable one-to-one services tailored to
the user's situation and tastes. Attribute
information recorded in the RedTacton device
is sent to the touched objects. The appropriate
service is provided based on the attribute
information received by the RedTacton
receiver.
(A) Elimination of Human Errors
Touch Advertisements and receive
Information
When a consumer stands in front of an
advertising panel, advertising and information
matching his or her attributes is automatically
displayed. By touching or standing in front of
items they are interested in, consumers can get
more in-depth information.
Examples of Similar Applications
 Brochures only of products of
interest to the visitor can be

8. downloaded automatically at trade Communication can be kept private using
shows. authentication and encryption technologies.
 Inside a shop, shoppers can view
related information on their mobile
terminals immediately after touching
a product.
(2) Intuitive Operation:
Natural movements and actions are
the trigger. There's no "operation" any more.
Just intuitive human interaction. RedTacton
transceivers embedded in two terminals can
communicate not only data but also the
control or configuration instructions needed to
operate devices. Cable connections are
eliminated. The body itself is used as Instantaneous private network via personal
transmission medium. handshake
Examples of Similar Applications
 Group photos taken with digital
cameras are instantly transferred to
individual's mobile terminal.
 Diagrams written on white boards
during meetings are transferred to
individual's mobile terminals on the
spot.
(3) Personalization
Touch a printer to print Digital lifestyle can be instantly
personalized with just a touch. A pre-
Print out where you want just by touching the recorded configuration script can be
desired printer with one hand and a PC or embedded in a mobile terminal with built-
digital camera with the other hand to make the in RedTacton transceiver. When another
link. Complicated configurations are reduced device with RedTacton capabilities is
by downloading device drivers "at first touch". touched, personalization data and
configuration scripts can be downloaded
Examples of Similar Applications automatically.
 Display notebook PC screen on (A) Personalization of Mobile Phones
projectors with just a touch
 Transfer songs to portable music
players from notebook PCs with just a Just touching a phone makes it your own
touch
Your own phone number is allocated and
(A) Instant private data exchange billing commences Automatic importing
By shaking hands, personal profile data can be of personal address book and call history.
exchanged between mobile terminals on the Examples of Similar Applications
users. (Electronic exchange of business cards).

9. this has the potential to create new behavior
patterns.
 The PC is configured to the user's
specifications simply by touching
the mouse.
 Room temperature and lighting are
customized when a switch in the
living room is pressed. Connect to network just by putting a laptop on
the table
(B) Personalization of Automobiles
An electrically conductive sheet is embedded
in the table. A network connection is initiated
simply by placing a lap-top on the table. Using
different sheet patterns enables segmentation
of the table into subnets.
Examples of Similar Applications
 Walls and partitions can be used as
communication media, eliminating
construction to install electrical wiring.
Just sitting in the seat triggers the car to load  Ad hoc networking using conductive
all its presets, just the way we like liquid sprays is possible
The seat position and steering wheel height (A) Wearable:
adjust to match the driver just by sitting in the
car. The driver's home is set as the destination
in the car navigation system. The stereo plays
the driver's favorite song.
Examples of Similar Applications
 Touching the TV remote control
triggers a filter/search routine
according to your personal
programming preferences.
(4) New Behavior Patterns Wireless headset
Various conductors and dielectrics can be RedTacton can carry music or video between
used as RedTacton communication media, and headsets, mobile devices, mobile phones, etc.
Users can listen to music from a RedTacton

10. player simply by putting on a headset or
holding a viewer.
Examples of Similar Applications
 Connecting head mounted displays.
(5) Security
Automatic user authentication and log-in
with just a touch. ID and privileges are
recorded in a mobile RedTacton device. Automatic access log for confidential
Corresponding RedTacton receivers are document management
installed at security check points. The system
can provide authentication and record that A RedTacton receiver in a cabinet where
touched the device, and when carrying a important documents are stored enables
mobile RedTacton-capable device in one's lock administration and keeps a record of
pocket, ID is verified and the door unlocked who accessed documents at what time.
when the user holds the doorknob normally.
Secure lock administration is possible by Examples of Similar Applications
combining personal verification tools such as
fingerprint ID or other biometric in the mobile  Seat reservation management by
terminal. verifying that the right person is in the
right seat.
 Log and verification of the person who
touched the terminal.
(6) Communication in New Domains
User verification unlocking with just a touch
Examples of Similar Applications
 Automated car door lock/unlock just
by touching the handle; unlocking a
bicycle just by sitting on it.  Potential for use as communication
 As a pass in amusement facilities. method in outer space and under water
(A) Confidential Domain Management

11. 7) www.oppapers.com/essays/redtacton/1
66398
8) Wikipedia.(February 2009). Red
Tacton [Online].
Available:http://en.wikipedia.org/wiki/
RedTacton
9) html/www.taipeitimes.com/news/biz/a
rchives/2005/03/20/2003247076
10) discuss.itacumens(June 2003). "Basic
Overview of Human Area
NetworkingTechnology". [Online]
 Potential for use as communication Available:http://discuss.itacumens.com
method with devices inside the human /index.php?topic=12720
body.
9. CONCLUSION
Red tacton has a wide range of unique
new functional features and enormous
potential as a human area networking
technology. Considering the possibilities
offered by this technology, it’s possible that in
a few years time, we will be able to download
a ring tone for our mobile phone simply by
touching an advertising panel in the street and
do much more just by the power of touching
things, thanks to Red Tacton technology.
REFERENCES
1) technicalpapers.50webs."RED
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http://technicalpapers.50webs.com/pdf
/redtaction.pdf
2) Scribd (2010). "Human Area
NetworksRedTacton".[Online].Availab
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http://www.scribd.com/doc/55240946/
RED-TACTON-REPORT
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4) www.physorg.com/news3153.html
5) www.ntt.co.jp/news/news05e/0502/05
0218.html
6) www.redtacton.com/en/index.html