WIRELESS ENERGY TRANSFER
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured to transfer energy non-radiatively with a second resonator structure over a distance greater than a characteristic size of the second resonator structure. The non-radiative energy transfer is mediated by a coupling of a resonant field evanescent tail of the first resonator structure and a resonant field evanescent tail of the second resonator structure.
339 Citations
136 Claims
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1-73. -73. (canceled)
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74. A method of wireless power transfer, comprising:
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generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near field of the source resonator; responding to the electromagnetic field with a receiver response comprising consuming power from the electromagnetic field with a receive resonator operating substantially near the resonant frequency in the coupling-mode region; detecting the receiver response to the electromagnetic field, wherein the receiver response is identifiable by a source as information generated by a receiver; and adjusting a property of the electromagnetic field responsive to the receiver response. - View Dependent Claims (75, 76, 77)
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78. A system for wireless power transfer, comprising:
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means for generating an electromagnetic field at a resonant frequency of a high-Q source magnetic resonator to create a coupling-mode region within a near field of the source resonator; means for responding to the electromagnetic field with a receiver response comprising consuming power from the electromagnetic field with a high-Q receive magnetic resonator operating substantially near the resonant frequency in the coupling-mode region; means for detecting the receiver response to the electromagnetic field, wherein the receiver response is identifiable by a source as information generated by a receiver; and means for adjusting a property of the electromagnetic field responsive to the receiver response. - View Dependent Claims (79, 80, 81)
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82. An apparatus for wireless power transfer, comprising:
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an amplifier and a high-Q source resonator to generate an electromagnetic field at a resonance frequency to couple with a high-Q receive resonator; and a controller operably coupled to the source resonator and the amplifier, configured to adjust power of the electromagnetic field and to detect a receiver response to the electromagnetic field, wherein the receiver response is identifiable by a source as information generated by a receiver. - View Dependent Claims (83, 84)
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85. An apparatus for wireless power transfer, comprising:
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a high-Q receive resonator configured to couple with a high-Q source resonator operating at a resonant frequency through a coupling-mode region generated by the source resonator; and a circuit operably coupled to the receive resonator and configured to generate a receiver response, wherein the receiver response is identifiable by a source as information generated by a receiver. - View Dependent Claims (86)
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87. A method of wireless power transfer, comprising:
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generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near field of the source; and continuing the generating the electromagnetic field when there is at least one high-Q receiver resonator within the coupling-mode region designated to accept power from the electromagnetic field; and adjusting the electromagnetic field based on information exchange between the resonators within the coupling-mode region. - View Dependent Claims (88, 89, 90)
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91. A wireless power transfer system, comprising:
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means for generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near field of the source; and means for continuing the generating the electromagnetic field when there is at least one high-Q receiver resonator within the coupling-mode region designated to accept power from the electromagnetic field; and means for disabling the generating the electromagnetic field when there are no receivers within the coupling-mode region designated to accept power from the electromagnetic field. - View Dependent Claims (92, 93, 94)
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95. A wireless power transmitter, comprising:
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a high-Q source resonator for generating a near field within a coupling-mode region for coupling to a high-Q receive resonator; an amplifier for applying an RF signal to the source resonator; a controller operably coupled to the source resonator, wherein the controller; determines control information for the plurality of receive devices disposed within the coupling-mode region; and communicates the control information to each of the plurality of receive devices. - View Dependent Claims (96, 97, 98, 99)
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100. A wireless power receiver, comprising:
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a high-Q receive resonator configured for coupling with a high-Q source resonator through a near field r generated by the source resonator to generate an RF signal; a circuit operably coupled to the receive resonator and configured for operating the wireless power receiver in a first power reception state consuming a first power amount from the near field and a second power reception state consuming a second power amount from the near field; and a controller operably coupled to the circuit, the controller for generating a response on the receive receiver by controlling the circuit to enter the either the first power reception state or the second power reception state. - View Dependent Claims (101)
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102. A wireless power receiver, comprising:
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a high-Q receive resonator for coupling with a high-Q source resonator through a electromagnetic near-field generated by the source resonator to generate an RF signal; and a circuit for tuning the receive resonator to receive different amounts of power from the source resonator. - View Dependent Claims (103, 104)
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105. A wireless power receiver, comprising:
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a high-Q receive resonator for coupling with a high-Q source resonator through an electromagnetic near-field generated by the source resonator to generate an RF signal; a rectifier operably coupled to the receive resonator and for converting the RF signal to a DC signal for supplying power to a receive device; and a communication module for exchanging information with the source resonator. - View Dependent Claims (106)
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107. A wireless power transmitter, comprising:
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a high-Q source resonator for generating a magnetic near-field for coupling to a high-Q receive resonator; a power circuit with an adjustable RF drive signal for driving the source resonator; and a sensing circuit for adjusting the amplitude of the RF drive signal. - View Dependent Claims (108, 109, 110)
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111. A method of wireless power transfer, comprising:
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generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near-field of the source resonator; disposing a high-Q receive resonator within the coupling-mode region, wherein the receive resonator resonates substantially near the resonant frequency; extracting energy from a coupling of the receive resonator to the near-field of the source resonator; and signaling from the receive resonator to the source resonator by; modulating a signal level. - View Dependent Claims (112, 113, 114)
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115. A wireless power transfer system, comprising:
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means for generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near-field of the source resonator; means for receiving the resonant frequency within the coupling-mode region with a high-Q receive resonator, wherein the receive resonator resonates substantially near the resonant frequency; means for extracting energy from a coupling of the receive resonator to the near-field of the source resonator; and means for signaling from the receive resonator to the source resonator by; modulating a signal level. - View Dependent Claims (116, 117, 118)
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119. An apparatus, comprising:
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a transmitting device comprising at least one of an equipment and a household appliance for use in a wireless transfer system;
the transmitting device, comprising;a high-Q source resonator to wirelessly transfer power to a high-Q receive resonator by generating a magnetic near field at a resonant frequency within a coupling-mode region; an adjustable RF drive signal to drive the source resonator; a monitor for detecting information about a receiver device within the coupling-mode region and generating a monitor signal; and a feedback circuit operably coupled to the monitor and adjustable RF drive signal, the controller for adjusting a power of the RF drive signal responsive to the monitor signal. - View Dependent Claims (120, 121, 122, 123, 124, 126)
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125. A method, comprising:
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generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near field of the source resonator; detecting an information signal indicative of the presence of a high-Q receive resonator in the coupling-mode region; adjusting a drive signal of the source resonator responsive to the presence of the receive resonator; and receiving power from the coupling-mode region with the receive resonator disposed within the coupling-mode region. - View Dependent Claims (127, 130)
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128. A method, comprising:
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generating an electromagnetic field at a resonant frequency of a source resonator to create a coupling-mode region within a near field of the source resonator; repeating the electromagnetic field to create a repeated coupling-mode region different from the coupling-mode region with a repeater resonator; detecting a presence of a receive resonator in the coupling-mode region; adjusting a power output of the source resonator responsive to the presence of the receive resonator; and receiving power from the repeated coupling-mode region with the receive resonator disposed within the repeated coupling-mode region, and wherein at least two of the source resonator, the repeater resonator and the receive resonator are high-Q resonators. - View Dependent Claims (129)
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131. A wireless power transfer system, comprising:
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means for generating an electromagnetic field at a resonant frequency of a high-Q source resonator to create a coupling-mode region within a near field of the source resonator; means for detecting a presence of a high-Q receive resonator in the coupling-mode region; means for adjusting a power output of the source resonator responsive to the presence of the receive resonator; and means for receiving power from the coupling-mode region with the receive resonator disposed within the coupling-mode region. - View Dependent Claims (132, 133)
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134. A wireless power transfer system, comprising:
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means for generating an electromagnetic field at a resonant frequency of a source resonator to create a coupling-mode region within a near field of the source resonator; means for repeating the electromagnetic field to create a repeated coupling-mode region different from the coupling-mode region with a repeater resonator; means for detecting a presence of a receive resonator in the coupling-mode region; means for adjusting a power output of the source resonator responsive to the presence of the receive resonator; and means for receiving power from the repeated coupling-mode region with the receive resonator disposed within the repeated coupling-mode region, wherein at least two of the source resonator, the repeater resonator and the receive resonator are high-Q resonators. - View Dependent Claims (135, 136)
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Specification