Womble Bond Dickinson (US) LLP
Low power radio frequency communication
A method, system and tag for low power radio frequency communication is described. In one embodiment, the RF tag comprises: an energy harvesting unit operable to convert incident RF energy to direct current (DC); a storage unit operable to store recovered DC power; one or more sensors for sensing; a backscatter communicator to backscatter energy to communicate; and a microcontroller coupled to the energy harvesting and storage units, the one or more sensors, and the backscatter communicator, the microcontroller operable to wake up from a sleep state and cause the radio to communicate sensed data from at least one of the one or more sensors while powered by energy previously harvested and stored by the energy harvesting and storage unit.
RICOH CO., LTD. DUKE UNIVERSITY
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G06K Y02D G06K
inventional additional inventional
Ken Matthew S. Sergey Jonathan J.
Gudan Reynolds Chemishkian Hull