BEAMFORMING FOR WIRELESS POWER TRANSFER
First Claim
1. A method comprising:
- determining a phase of a wave front that is received at a first element of a wireless power transfer device and a phase of the wave front that is received at a second element of the wireless power transfer device;
generating a control signal for the first element and a control signal for the second element of the wireless power transfer device based on the determined phase of the wave front that is received at the first element and the determined phase of the wave front that is received at the second element of the wireless power transfer device;
supplying the control signal for the first element to the first element of the wireless power transfer device and the control signal for the second element to the second element of the wireless power transfer device; and
transmitting a waveform from the first element based on the supplied control signal for the first element and a waveform from the second element based on the supplied control signal for the second element.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and techniques are provided for beamforming for wireless power transfer. A position of a second wireless power transfer device relative to a first wireless power transfer device may be determined. A beam may be simulated as being transmitted from the position of the second wireless power transfer device. Phases of a wave front of the simulated beam that would be received by elements of the first wireless power transfer device may be determined. A control signal for each of the elements for which phases were determined may be generated based on the determined phase of the wave front that would be received at the element. The control signal for each of the elements for which phases were determined may be supplied to the elements for which phases were determined. A waveform may be transmitted from the elements for which phases were determined based on the supplied control signal.
16 Citations
47 Claims
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1. A method comprising:
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determining a phase of a wave front that is received at a first element of a wireless power transfer device and a phase of the wave front that is received at a second element of the wireless power transfer device; generating a control signal for the first element and a control signal for the second element of the wireless power transfer device based on the determined phase of the wave front that is received at the first element and the determined phase of the wave front that is received at the second element of the wireless power transfer device; supplying the control signal for the first element to the first element of the wireless power transfer device and the control signal for the second element to the second element of the wireless power transfer device; and transmitting a waveform from the first element based on the supplied control signal for the first element and a waveform from the second element based on the supplied control signal for the second element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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determining a position of a second wireless power transfer device relative to a first wireless power transfer device; simulating a beam as being transmitted from the position of the second wireless power transfer device; determining a phase of a wave front of the simulated beam that would be received at a first element of the first wireless power transfer device and a phase of the wave front of the simulated beam that would be received at a second element of the first wireless power transfer device; generating a control signal for the first element and a control signal for the second element of the first wireless power transfer device based on the determined phase of the wave front that would be received at the first element and the determined phase of the wave front that would be received at the second element of the first wireless power transfer device; supplying the control signal for the first element to the first element of the wireless power transfer device and the control signal for the second element to the second element of the wireless power transfer device; and transmitting a waveform from the first element based on the supplied control signal for the first element and a waveform from the second element based on the supplied control signal for the second element. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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determining a position of a second wireless power transfer device relative to a first wireless power transfer device; simulating a beam as being transmitted from the position of the second wireless power transfer device; determining phases of a wave front of the simulated beam that would be received by one or more of a plurality of elements of the first wireless power transfer device; generating a control signal for each element of the one or more of the plurality of elements for which phases were determined based on the determined phase of the wave front that would be received at the element; supplying the control signal for each element of the one or more of the plurality of elements for which phases were determined to each element of the one or more of the plurality of elements for which phases were determined; and transmitting a waveform from each element of the one or more of the plurality of elements for which phases were determined based on the supplied control signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A system for beamforming for wireless power transfer comprising:
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a plurality of elements adapted and configured to generate electrical signals based on a wave front of a received beam, and to transmit waveforms for a transmitted beam based on supplied control signals; and a computing device comprising a transducer signal generator adapted and configured to generate the control signals for the plurality of elements based on determined phases of the wave front that are received at the plurality of elements, and to supply the control signals for the plurality of elements to the plurality of elements. - View Dependent Claims (24, 25, 26, 27, 28)
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30. A system for beamforming for wireless power transfer comprising:
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a plurality of elements adapted and configured to transmit waveforms for a transmitted beam based on supplied control signals; a receiver position detector adapted to determine a position of a receiving wireless power transfer device; and a computing device comprising a transducer signal generator adapted and configured to simulate a beam as being transmitted from the position of the receiving wireless power transfer device, determine phases of a wave front of the simulated beam that would be received by one or more of the plurality of elements, generate a control signal for each element of the one or more of the plurality of elements based on the determined phases, and supply control signals to the one or more of the plurality of elements. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. A method comprising:
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determining a position of a second wireless power transfer device relative to a first wireless power transfer device; simulating a beam as being transmitted from the position of the second wireless power transfer device, wherein simulating the beam comprises using one of a calculation or approximation to determine phases of a wave front of the simulated beam that would be received by one or more of a plurality of elements of the first wireless power transfer device directly based on the position of the second wireless power transfer device relative to the first wireless power transfer device and properties of the wave front of the simulated beam at its origin at the second wireless power transfer device without simulating the beam in route between the second wireless power transfer device and the first wireless power transfer device; generating a control signal for each element of the one or more of the plurality of elements for which phases were determined based on the determined phase of the wave front that would be received at the element; supplying the control signal for each element of the one or more of the plurality of elements for which phases were determined to each element of the one or more of the plurality of elements for which phases were determined; and transmitting a waveform from each element of the one or more of the plurality of elements for which phases were determined based on the supplied control signal. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47)
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Specification