RedTacton is a new Human Area Networking technology that turns the surface of the human body as a safe, high speed network transmission path.
Communication is possible using any body surfaces, such as the hands, fingers, arms, feet, face, legs or toes.
RedTacton works through shoes and clothing as well.
RedTacton uses the minute electric field emitted on the surface of the human body for data transmission.
NTT developed super sensitive Photonic electric field sensor for detecting minute electric field emitted on the surface of the human body
The electro-optic sensor has three key features:
It can measure electric fields from a device under test (DUT) without contacting it, which minimizes measurement disturbance.
Ultra wide-band measurement is possible.
It supports one-point contact measurement that is independent of the ground,
which is the most significant feature in the present context.
NTT utilized this third feature to fabricate an intra-body communication receiver for its human area networking technology, which is called RedTacton.
At the end of 2002 the Japanese telecommunications group NTT had announced that it would develop a new data transmission technology that uses the conductive properties of the human body to exchange information between electronic devices. With RedTacton the company has now scarcely two and a half years later presented its first prototype of a Human Area Network (HAN).
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 advance on the wireless Personal Area Network concept - dubbed RedTacton- can transmit data over the surface of the skin at up to 2Mbps. Where it differs, though, from previous offerings, is that a RedTacton-enabled device does not have to be in direct contact with the skin - only within about 20cm