Transmitters and receivers for wireless energy transfer
First Claim
Patent Images
1. A system for receiving magnetic transmission of power, comprising:
- an antenna circuit comprising a wire loop antenna, the wire loop antenna comprising a wire formed into at least one loop, the antenna circuit having an inductance and a capacitance with an L/C value tuned for receiving the power from a magnetic field of a first frequency, the antenna circuit configured to produce an output that includes electrical power based on receiving the power from the magnetic field; and
a first electrical part configured to increase an equivalent radius of the wire loop antenna without increasing a physical radius of the wire loop antenna.
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Accused Products
Abstract
Techniques for wireless power transmission. An antenna has a part that amplifies a flux to make the antenna have a larger effective size than its actual size.
309 Citations
70 Claims
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1. A system for receiving magnetic transmission of power, comprising:
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an antenna circuit comprising a wire loop antenna, the wire loop antenna comprising a wire formed into at least one loop, the antenna circuit having an inductance and a capacitance with an L/C value tuned for receiving the power from a magnetic field of a first frequency, the antenna circuit configured to produce an output that includes electrical power based on receiving the power from the magnetic field; and a first electrical part configured to increase an equivalent radius of the wire loop antenna without increasing a physical radius of the wire loop antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for receiving a magnetic transmission of power, comprising:
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receiving power using an antenna circuit comprising a wire loop antenna, the antenna circuit having an inductance L and a capacitance C with an L/C ratio tuned to a value that is resonant with a frequency of a magnetic field, the wire loop antenna having an equivalent radius that is greater than a physical radius of the wire loop antenna, wherein a first electrical part is used to provide the equivalent radius; and powering a load using the received power. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method, comprising:
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determining whether there are greater dielectric losses than eddy current losses in an environment for receiving power via a magnetic field; receiving power using a first resonator if the dielectric losses are greater than the eddy current losses in the environment; and receiving power using a second resonator if the eddy current losses are greater than the dielectric losses in the environment. - View Dependent Claims (32, 33, 34, 35)
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36. A system for receiving wireless power, comprising:
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a housing configured to house mobile electronics; and an antenna circuit configured to receive power via a magnetic field to power or charge a load, wherein the antenna circuit comprises a loop antenna portion placed along at least a portion of a surface of the housing. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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43. A system for receiving wireless power, comprising:
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a housing; a coil winding form extending across the housing from at least a first side of the housing to a second side of the housing; a coil wound around the coil winding form; and at least one opening in the housing configured to allow magnetic fields to interact with the coil winding form. - View Dependent Claims (44, 45, 46, 47)
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48. An RFID system, comprising:
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a first layer comprising a first material that converts mechanical strain to electrical energy; a second layer in mechanical contact with the first layer, wherein the second layer comprises a second material that changes position in response to an applied magnetic field; and a first output terminal, connected to receive the electrical energy from the second layer. - View Dependent Claims (49, 50, 51, 52, 53)
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54. A system for magnetic transmission of power, comprising:
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an antenna circuit comprising a wire loop antenna, the wire loop antenna comprising a wire formed into at least one loop, the antenna circuit having an inductance L and a capacitance C, with an L/C value tuned for transmitting a magnetic field of a first frequency; and a first electrical part configured to increase an equivalent radius of the wire loop antenna without increasing a physical radius of the wire loop antenna. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A system for receiving magnetic transmission of power, comprising:
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means for wirelessly receiving power having an inductance L and a capacitance C with an L/C value tuned for receiving the power from a magnetic field of a first frequency, the means for wirelessly receiving power comprising means for producing an output that includes electrical power based on receiving the power from the magnetic field; and means for increasing an equivalent radius of the means for wirelessly receiving power without increasing a physical radius of the means for wirelessly receiving power. - View Dependent Claims (65, 66, 67)
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68. A system for receiving wireless power, comprising:
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a housing configured to house mobile electronics; and means for receiving power via a magnetic field at a level sufficient to power or charge a load, wherein the means for receiving power is placed along at least a portion of a surface of the housing. - View Dependent Claims (69, 70)
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Specification