Motion prediction for wireless power transfer
First Claim
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1. A system, comprising:
- a sender comprising;
a sender transducer adapted and configured to generate ultrasonic waves;
a sender controller coupled to 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;
a receiver communications device adapted and configured to send input to the sender communications 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.
136 Citations
20 Claims
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1. A system, comprising:
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a sender comprising; a sender transducer adapted and configured to generate ultrasonic waves; a sender controller coupled to 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; a receiver communications device adapted and configured to send input to the sender communications device. - View Dependent Claims (2, 3)
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4. A system, comprising:
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a sender transducer adapted and configured to generate ultrasonic waves; a sender controller coupled to 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. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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emitting ultrasonic waves from an ultrasonic transducer of a sender, the ultrasonic waves directed at a receiver; receiving a communication at the sender from the receiver, the communication comprising a control signal comprising an indication of the motion of the receiver; determining a predicted future location of the receiver based on the control signal comprising the indication of the motion of the receiver; and steering the ultrasonic waves based on the predicted future location of the receiver. - View Dependent Claims (17, 18, 19, 20)
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Specification