Intrabody Signaling

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What Does Intrabody Signaling Mean?

Intrabody signaling uses the human body to transmit low-powered, electrical frequency signals, allowing a person to interact and exchange data with nearby objects. This technology is used to interface between wearable computers and devices, but it is still a prototype. As of 2011, there are no prominent commercial products based on intrabody signaling.


Intrabody signaling is also known as intrabody communication.

Techopedia Explains Intrabody Signaling

The low power used in intrabody signaling ensures that the signals are not felt by and do not propagate to the devices being used by the person.

The communication medium of human touch between devices has the potential for a wide variety of innovative applications. One such example is the Touch and Play Protocol, where the user’s required operation context is provided by touch. This might involve a digital camera user who taps a printer to initiate a printout of camera images via a wireless channel or human transmission. Another implementation example is user interaction with wearable computers via a mouse and keyboard, where intrabody signaling is the interface medium.

Continued safety testing of the effects of low-voltage signal transmission on humans must be analyzed before implementations are established and become available.

Intrabody signaling has many advantages over RF-bands, ISM bands, infrared or conductive fabric:

  • It is touch-sensitive
  • It is less constrained
  • It does not have interception difficulties
  • It can operate on low power
  • It consumer less of a transmission channel

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Margaret Rouse
Senior Editor
Margaret Rouse
Senior Editor

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.