WIRELESS POWER TRANSFER IN PUBLIC PLACES
First Claim
1. A wireless power transfer system, comprising a wireless-power-transmitting device comprising a transmit antenna for disposition in or on a publicly placed structure and for wirelessly transferring power to a receiver device including a receive antenna by generating a near-field radiation at a resonant frequency within a coupling-mode region.
1 Assignment
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Accused Products
Abstract
Exemplary embodiments are directed to public wireless-power-transmission. A device disposed in or on a publicly placed structure and a user neighboring device includes a repeater antenna with a loop antenna and a capacitive element. The public wireless-power-transmitting device includes a transmit antenna to wirelessly transfer power by generating a near-field radiation at a resonant frequency within a coupling-mode region and an amplifier for driving the transmit antenna. When in the coupling-mode region, the repeater antenna couples with the near-field radiation generated by the transmit antenna and develops an enhanced coupling-mode region about the repeater antenna with a repeated near-field radiation that is stronger than the near-field radiation of the transmit antenna within the enhanced coupling-mode region. Power may be wirelessly transferred from the enhanced coupling-mode region to a receiver device including a receive antenna.
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Citations
44 Claims
- 1. A wireless power transfer system, comprising a wireless-power-transmitting device comprising a transmit antenna for disposition in or on a publicly placed structure and for wirelessly transferring power to a receiver device including a receive antenna by generating a near-field radiation at a resonant frequency within a coupling-mode region.
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19. A method, comprising:
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generating an electromagnetic field at a resonant frequency of a transmit antenna disposed in or on a publicly placed structure to create a coupling-mode region within a near-field of the transmit antenna; and wirelessly transferring power from the coupling-mode region to a receiver device including a receive antenna. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A wireless power transfer system, comprising:
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means for generating an electromagnetic field at a resonant frequency of a transmit antenna disposed in or on a publicly placed structure to create a coupling-mode region within a near-field of the transmit antenna; and means for wirelessly transferring power from the enhanced coupling-mode region to a receiver device including a receive antenna. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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- 36. An apparatus, comprising a cart and including a near-field antenna comprising a loop antenna and a capacitive element, the near-field antenna for generating a near-field radiation at a resonant frequency within a coupling mode region and transferring power to an additional near-field antenna when the additional near field antenna is within the coupling-mode region.
Specification