MOTION PREDICTION FOR WIRELESS POWER TRANSFER
First Claim
Patent Images
1. A system, comprising:
- a sender comprising;
a first signal generator;
a first amplifier coupled to the first signal generator, said first amplifier configured to receive power from a power source and to generate an electrical transmission signal adapted to be used to generate ultrasonic waves;
a sender transducer coupled to the first amplifier, the sender transducer adapted and configured to generate ultrasonic waves based on the electrical transmission signal received from the amplifier;
a sender controller coupled to at least one of the first signal generator, the first amplifier and the sender transducer, the sender controller adapted and configured to adjust a steering parameter to direct the ultrasonic waves generated by the sender transducer to a predicted future location of a receiver; and
a sender communications device adapted to communicate with a receiver communications device; and
the receiver comprising;
a receiver transducer adapted and configured to receive ultrasonic waves generated by the sender transducer, to generate a receiver electrical signal based on the received ultrasonic waves, and to connect to a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver transducer;
a receiver communications device adapted and configured to send input to the sender communications device; and
a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device.
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Abstract
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
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Citations
19 Claims
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1. A system, comprising:
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a sender comprising; a first signal generator; a first amplifier coupled to the first signal generator, said first amplifier configured to receive power from a power source and to generate an electrical transmission signal adapted to be used to generate ultrasonic waves; a sender transducer coupled to the first amplifier, the sender transducer adapted and configured to generate ultrasonic waves based on the electrical transmission signal received from the amplifier; a sender controller coupled to at least one of the first signal generator, the first amplifier and the sender transducer, the sender controller adapted and configured to adjust a steering parameter to direct the ultrasonic waves generated by the sender transducer to a predicted future location of a receiver; and a sender communications device adapted to communicate with a receiver communications device; and the receiver comprising; a receiver transducer adapted and configured to receive ultrasonic waves generated by the sender transducer, to generate a receiver electrical signal based on the received ultrasonic waves, and to connect to a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver transducer; a receiver communications device adapted and configured to send input to the sender communications device; and a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device. - View Dependent Claims (2)
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3. A system, comprising:
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a signal generator; an amplifier coupled to the signal generator, said amplifier configured to receive power from a power source and to generate an electrical transmission signal adapted to be used to generate ultrasonic waves; a sender transducer coupled to the amplifier, the sender transducer adapted and configured to generate ultrasonic waves based on the electrical transmission signal received from the amplifier; a sender controller coupled to at least one of the signal generator, the amplifier and the sender transducer, the sender controller adapted and configured to adjust a steering parameter to direct the ultrasonic waves generated by the sender transducer to a predicted future location of a receiver; and a sender communications device adapted to communicate with a receiver and receiver. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a receiver transducer adapted and configured to receive ultrasonic waves generated by a sender transducer and to generate a receiver electrical signal based on the received ultrasonic waves, the receiver transducer further adapted and configured to be connected to a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver transducer; a receiver communications device adapted and configured to send input to a sender communications device, the input comprising a control signal comprising an indication of one or more of a motion of the receiver and an orientation of the receiver; and a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device. - View Dependent Claims (11, 12)
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13. A method comprising:
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emitting ultrasonic waves from an ultrasonic transducer of a sender, the ultrasonic waves directed at a receiver; determining a predicted future location of the receiver; and steering the ultrasonic waves based on the predicted future location of the receiver. - View Dependent Claims (14, 15, 16, 17)
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18. A method comprising:
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receiving ultrasonic waves from an ultrasonic transducer of a sender at a receiver; determining a motion of the receiver; and sending a communication to the sender, the communication comprising a control signal comprising an indication one or more of the motion and an orientation of the receiver. - View Dependent Claims (19)
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Specification