Concurrent wireless power transfer and data communication
First Claim
1. A system to enable both wireless power transfer and data communication by use of a same transmit signal to one or more mobile devices, the system comprising:
- a constraint encoder that is configured to receive data bits for communication to the one or more mobile devices and to encode the data bits onto a transmit signal;
the constraint encoder further configured to specify, based on the received data bits, one or more signal constraints that change frequency, phase, or amplitude components of the transmit signal to cause the transmit signal to have at least a specified peak-to-power-average ratio (PAPR) during a given time interval sufficient to provide the wireless power transfer to the one or more mobile devices, wherein the specified one or more signal constraints are selected to maintain the specified PAPR during the given time interval;
a signal generator coupled to the constraint encoder and configured to generate the transmit signal according to the one or more signal constraints; and
a transmitter coil that is coupled to the signal generator and is configured to transmit the transmit signal that has been encoded with the data bits to one or more receiver coils of the one or more mobile devices, the encoded transmit signal able to provide the wireless power transfer and the encoded data bits to the one or more mobile devices.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for concurrent wireless power transfer and data transmission are provided. A constraint encoder receives data bits for communication to a mobile device and encodes the data bits onto a transmit signal. The constraint encoder specifies signal constraints that cause the transmit signal to have a peak-to-power-average ratio (PAPR) during a given time interval sufficient to provide wireless power transfer to the mobile device. The system also includes a signal generator coupled to the constraint encoder. The signal generator generates the transmit signal according to the signal constraints. The system further includes a transmitter coil that is coupled to the signal generator. The transmitter coil is configured to transmit the transmit signal that has been encoded with the data bits to receiver coils of the mobile device. The encoded transmit signal is able to provide wireless power transfer and the encoded data bits to the mobile device.
18 Citations
38 Claims
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1. A system to enable both wireless power transfer and data communication by use of a same transmit signal to one or more mobile devices, the system comprising:
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a constraint encoder that is configured to receive data bits for communication to the one or more mobile devices and to encode the data bits onto a transmit signal; the constraint encoder further configured to specify, based on the received data bits, one or more signal constraints that change frequency, phase, or amplitude components of the transmit signal to cause the transmit signal to have at least a specified peak-to-power-average ratio (PAPR) during a given time interval sufficient to provide the wireless power transfer to the one or more mobile devices, wherein the specified one or more signal constraints are selected to maintain the specified PAPR during the given time interval; a signal generator coupled to the constraint encoder and configured to generate the transmit signal according to the one or more signal constraints; and a transmitter coil that is coupled to the signal generator and is configured to transmit the transmit signal that has been encoded with the data bits to one or more receiver coils of the one or more mobile devices, the encoded transmit signal able to provide the wireless power transfer and the encoded data bits to the one or more mobile devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method to enable both wireless power transfer and data communication using a same transmit signal to one or more mobile devices so that the one or more mobile devices can be charged and receive the data communication concurrently, the method comprising:
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receiving data bits for communication to the one or more mobile devices; specifying, based on the received data bits, one or more signal constraints that change frequency, phase, or amplitude components of the transmit signal, resulting in the transmit signal having at least a specified peak-to-power-average ratio (PAPR) during a given time interval sufficient to provide the wireless power transfer to the one or more mobile devices, wherein the specified one or more signal constraints are selected to maintain the specified PAPR during the given time interval; generating the transmit signal according to the one or more signal constraints; encoding the data bits onto the transmit signal; and transmitting the transmit signal that has been encoded with the data bits to the one or more mobile devices to provide the wireless power transfer and the encoded data bits to the one or more mobile devices. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A system to enable a mobile device to receive both wireless power transfer and data communication from a same received transmit signal, the system comprising:
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a receiver coil, implemented in the mobile device, that is configured to communicatively couple with a transmitter coil and to receive a transmit signal generated by the transmitter coil; a converter coupled to the receiver coil and configured to extract power from the transmit signal received by the receiver coil; and a constraint decoder coupled to the receiver coil and configured to decode one or more data bits encoded in the transmit signal received by the receiver coil based on one or more signal constraints that change frequency, phase, or amplitude components of the transmit signal, so as to enable the transmit signal received by the receiver coil to transmit the one or more data bits and to have at least a specified peak-to-power-average ratio (PAPR) during a given time interval sufficient to provide the wireless power transfer to the mobile device, wherein the one or more signal constraints are selected to maintain the specified PAPR during the given time interval. - View Dependent Claims (31, 32, 33)
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34. A method to enable a mobile device to receive both wireless power transfer and data communication from a same received transmit signal so that the mobile device can be charged and receive the data communication concurrently, the method comprising:
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receiving, at a receiver coil from a transmitter coil, a transmit signal; extracting power from the received transmit signal; and decoding one or more data bits encoded in the received transmit signal based on one or more signal constraints that change frequency, phase, or amplitude components of the transmit signal, enabling the received transmit signal to transmit the one or more data bits and to have at least a specified peak-to-power-average ratio (PAPR) during a given time interval sufficient to provide the wireless power transfer to the mobile device, wherein the one or more signal constraints are selected to maintain the specified PAPR during the given time interval. - View Dependent Claims (35, 36, 37, 38)
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Specification