Slideshow

Researchers send data without battery, transmitter

The system could form the basis of communication between wearable electronics devices

  • Researchers demonstrate how one payment card can transfer funds to another card by leveraging the existing wireless signals around them. Ambient RF signals are both the power source and the communication medium.

  • Using ambient backscatter, these devices can interact with users and communicate with each other without using batteries. They exchange information by reflecting or absorbing pre-existing radio signals.

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