Apparatus and method for controlling wireless power transfer to mobile devices
First Claim
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1. A power receiver, comprising:
- a power pick-up unit configured to receive power from a power transmitter via a wireless coupling with the power transmitter; and
a control unit configured to adjust the power received from the power transmitter by determining and transmitting modulated control data to the power transmitter via the power pick-up unit,wherein the power pick-up unit is further configured to retransmit the same modulated control data without determining additional control data and regardless of whether the modulated control data is received by the power transmitter conditioned on the modulated control data being determined by the control unit to include power status information.
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Abstract
A system for controlling wireless power transfer to mobile devices is disclosed. The system includes a power transmitter configured to transmit power via a wireless coupling to the mobile devices. Each of the mobile devices includes a power receiver configured to receive the power from the power transmitter via the wireless coupling with the power transmitter. Each power receiver is configured to transmit control data modulated with a spreading code via the wireless coupling to the power transmitter.
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Citations
41 Claims
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1. A power receiver, comprising:
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a power pick-up unit configured to receive power from a power transmitter via a wireless coupling with the power transmitter; and a control unit configured to adjust the power received from the power transmitter by determining and transmitting modulated control data to the power transmitter via the power pick-up unit, wherein the power pick-up unit is further configured to retransmit the same modulated control data without determining additional control data and regardless of whether the modulated control data is received by the power transmitter conditioned on the modulated control data being determined by the control unit to include power status information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A power transmitter for supplying power to a power receiver, the power transmitter comprising:
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a power conversion unit configured to transmit power to the power receiver via a wireless coupling with the power receiver; and a control unit configured to; receive a first signal via the wireless coupling and determine if the first signal includes a transmission of control data, the control data determined and sent by the power receiver and configured to include power status information; and receive a second signal via the wireless coupling and determine if the second signal includes a retransmission of the same control data, the retransmission sent by the power receiver without the power receiver determining additional control data and regardless of whether the first signal is received by the power transmitter conditioned on the control data including the power status information. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A system for controlling wireless power transfer, the system comprising:
a power receiver, wherein the power receiver is configured to; receive power from a power transmitter via a wireless coupling; determine and transmit modulated control data via the wireless coupling to the power transmitter; retransmit the same modulated control data without determining additional control data and regardless of whether the modulated control data is received by the power transmitter conditioned on the modulated control data being determined by the power receiver to include power status information; and receive adjusted power via the wireless coupling. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for controlling power transmission to a mobile device, the method comprising:
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receiving, by a power receiver in the mobile device, power from a power transmitter via a wireless coupling between the power transmitter and the power receiver; determining and transmitting, by the power receiver, modulated control data via the wireless coupling to adjust the power; and retransmitting the same modulated control data without determining additional control data and regardless of whether the modulated control data is received by the power transmitter if conditioned on the modulated control data is being determined by the power receiver to include power status information. - View Dependent Claims (35, 36, 37, 38, 39)
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40. An apparatus for controlling wireless power transfer, the apparatus comprising:
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means for receiving power, from means for transmitting power, via a wireless coupling; means for determining and transmitting modulated control data via the wireless coupling to the means for transmitting; and means for retransmitting the same modulated control data without determining additional control data, and regardless of whether the modulated control data is received by the means for transmitting, conditioned on the modulated control data being determined to include power status information, wherein the means for receiving is configured to receive adjusted power via the wireless coupling. - View Dependent Claims (41)
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Specification