10-12-2012, 02:00 PM
RedTacton
[attachment=43225]
INTRODUCTION
RedTacton is a new Human Area networking technology, which is under development that uses the surface of the human body as a safe, high speed network transmission path.
Technically, it is completely distinct from wireless and infrared technologies as it uses the minute electric field emitted on the surface of human body as medium for transmitting the data.
RedTacton can achieve duplex communication over the human body at a mximum speed of 10 Mbps.
RedTacton involves initiating communication with a touch that could result in a wide range of actions in response. Transmission path is formed when a part of the human body comes in contact.
RedTacton works through shoes and clothing as well.
HISTORY
The concept of intra-body communication was first proposed by IBM in 1996.
This communication mechanism was later evaluated and reported by several research groups around the world.
All those reported technologies had two limitations.
The operating range through the body was limited to a few tens of centimeters.
The top communication speed was only 40 bit/s!!
These limitations were overcome by NTT (Nippon Telegraph and Telephone Corporation) located in Tokyo, Japan by using photonic electric field sensors and finally in 2005 they came up with a human area networking technology called ‘REDTACTON’
How it works?
RedTacton operates on the idea that optical properties of an electro-optic crystal can vary according to the changes of a weak electric field.
After contract with another RedTacton enabled device, the transmitter induces a weak electric field on the surface of the body.
The weak electric fields pass through the body to a RedTacton receiver, where the weak electric fields affect the optical properties of an electro-optic crystal.
The extend to which the optical properties are changed is detected by laser light, which is then converted to an electrical signal by a detector circuit.
Receiving data is more complicated because the strength of the electric field involved is so low. RedTacton gets around this using a technique called electric field photonics: A laser is passed though an electro-optic crystal, which deflects light differently according to the strength of the field across it. These deflections are measured and converted back into electrical signals to retrieve the transmitted data.
Multiple transceivers can be used simultaneously. This is because RedTacton uses a proprietary CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol that allows multiple access with the same medium from multiple nodes. Each transceiver card has an unique MAC address
WHAT DOES IT DO?
When using a RedTacton device, the human body effectively becomes an Ethernet cable, so the body can use its electrical field to connect devices to networks or the internet.
For example, if a person wearing a RedTacton device sat at a table with RedTacton capabilities that was connected to the Internet, the laptop would immediately be connected to the internet.
Seems similar to a wireless network connection, but it is not. There is a physical connection, the person.
The connection is more secure and does not slow down if many people are using the same connection, as a wireless connection does.
[attachment=43225]
INTRODUCTION
RedTacton is a new Human Area networking technology, which is under development that uses the surface of the human body as a safe, high speed network transmission path.
Technically, it is completely distinct from wireless and infrared technologies as it uses the minute electric field emitted on the surface of human body as medium for transmitting the data.
RedTacton can achieve duplex communication over the human body at a mximum speed of 10 Mbps.
RedTacton involves initiating communication with a touch that could result in a wide range of actions in response. Transmission path is formed when a part of the human body comes in contact.
RedTacton works through shoes and clothing as well.
HISTORY
The concept of intra-body communication was first proposed by IBM in 1996.
This communication mechanism was later evaluated and reported by several research groups around the world.
All those reported technologies had two limitations.
The operating range through the body was limited to a few tens of centimeters.
The top communication speed was only 40 bit/s!!
These limitations were overcome by NTT (Nippon Telegraph and Telephone Corporation) located in Tokyo, Japan by using photonic electric field sensors and finally in 2005 they came up with a human area networking technology called ‘REDTACTON’
How it works?
RedTacton operates on the idea that optical properties of an electro-optic crystal can vary according to the changes of a weak electric field.
After contract with another RedTacton enabled device, the transmitter induces a weak electric field on the surface of the body.
The weak electric fields pass through the body to a RedTacton receiver, where the weak electric fields affect the optical properties of an electro-optic crystal.
The extend to which the optical properties are changed is detected by laser light, which is then converted to an electrical signal by a detector circuit.
Receiving data is more complicated because the strength of the electric field involved is so low. RedTacton gets around this using a technique called electric field photonics: A laser is passed though an electro-optic crystal, which deflects light differently according to the strength of the field across it. These deflections are measured and converted back into electrical signals to retrieve the transmitted data.
Multiple transceivers can be used simultaneously. This is because RedTacton uses a proprietary CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol that allows multiple access with the same medium from multiple nodes. Each transceiver card has an unique MAC address
WHAT DOES IT DO?
When using a RedTacton device, the human body effectively becomes an Ethernet cable, so the body can use its electrical field to connect devices to networks or the internet.
For example, if a person wearing a RedTacton device sat at a table with RedTacton capabilities that was connected to the Internet, the laptop would immediately be connected to the internet.
Seems similar to a wireless network connection, but it is not. There is a physical connection, the person.
The connection is more secure and does not slow down if many people are using the same connection, as a wireless connection does.