• The researchers built a prototype, consisting of insulated copper wires hooked up to an external analyzer and wrapped in coils around the subject's head, arms, and legs. These coils were able to send magnetic signals from one part of the body to the other, using the body as a guide.
  • The technique is called magnetic field human body communication. It uses the body as a vehicle to shuttle data. Basically, magnetic fields can pass through biological tissues, and researchers demonstrated that the magnetic communication link works well on bodies and that the power loss could be upwards of 10 million times lower than Bluetooth.
  • The technique is only a proof-of-concept but it's exciting. Researchers believe it could end up in a low-power wireless system that can shuttle data about the human body around the human body. Currently, wearables use Bluetooth radios to communicate, which use a lot of power. Wearables are an obvious application, because they could end up extending battery life as well as bolstering security.

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