Wireless energy transmission method, apparatus, and system
First Claim
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1. A wireless energy transmitter, comprising:
- a sampling unit configured to obtain first samples from an alternating current (AC) signal during a first symbol interval, the AC signal being induced at an energy transmission (TX) end, and the first symbol interval being used to transmit energy from the energy TX end to an energy reception (RX) end; and
a correcting unit configured to correct symbol synchronization based on a difference between a sum of absolute values of the first samples and a sum of absolute values of second samples that are obtained during a second symbol interval in which synchronization matching is performed between a switch of the energy TX end and a switch of the energy RX end.
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Abstract
Provided are a method and apparatus for wirelessly transmitting energy. A wireless energy transmitter may perform sampling to obtain first samples from an alternating current (AC) signal that is induced at an energy transmission (TX) end, and may correct symbol synchronization based on a difference between a sum of absolute values of the first samples and a sum of absolute values of second samples sampled during a symbol interval in which synchronization matching is performed between a switch of the energy TX end and a switch of the energy RX end.
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Citations
19 Claims
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1. A wireless energy transmitter, comprising:
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a sampling unit configured to obtain first samples from an alternating current (AC) signal during a first symbol interval, the AC signal being induced at an energy transmission (TX) end, and the first symbol interval being used to transmit energy from the energy TX end to an energy reception (RX) end; and a correcting unit configured to correct symbol synchronization based on a difference between a sum of absolute values of the first samples and a sum of absolute values of second samples that are obtained during a second symbol interval in which synchronization matching is performed between a switch of the energy TX end and a switch of the energy RX end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless energy transmission system, comprising:
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a wireless energy transmitter configured to transmit energy through mutual resonance between a source resonator and a target resonator, obtain first samples from an AC signal induced at the source resonator, for each symbol interval, determine whether symbol synchronization is to be corrected based on a comparison of a sum of absolute values of the first samples and a sum of absolute values of second samples that are obtained during a second symbol interval in which synchronization matching is performed, and correct the symbol synchronization based on a difference between the sum of the absolute values of the first samples and the sum of the absolute values of the second samples; and a wireless energy receiver comprising the target resonator configured to receive energy transmitted by the source resonator through the mutual resonance, and to match the symbol synchronization based on values of samples of an AC signal induced at the target resonator. - View Dependent Claims (12, 13, 14)
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15. A wireless energy transmission method, comprising:
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obtaining first samples from an alternating current (AC) signal during a first symbol interval, the AC signal being induced at an energy transmission (TX) end, and the first symbol interval being used to transmit energy from the energy TX end to an energy reception (RX) end; and correcting symbol synchronization based on a difference between a sum of absolute values of the first samples and a sum of absolute values of second samples that are sampled during a second symbol interval in which synchronization matching is performed between a switch of the energy TX end and a switch of the energy RX end. - View Dependent Claims (16, 17, 18, 19)
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Specification