Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 29, 2013
Patent Application Number
12930421
Date Filed
January 6, 2011
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
An energy harvesting circuit includes one or more broadband or narrow band antennas to detect WIFI (wireless fidelity) or other RF (radio frequency) signals. The signals are rectified and voltage multiplied, and the resultant DC voltage is provided to a power management circuit. The output of the power management circuit charges a lithium battery or other storage device within the energy harvesting circuit. The energy stored in the battery or storage device is provided through a DC/DC converter circuit to a USB output connector to power or recharge the batteries of an external electronic device connected to the USB output connector of the energy harvesting circuit.
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