Techniques for delivering retrodirective wireless power
First Claim
1. A wireless power transmission system, comprising:
- an adaptively-phased antenna array having multiple radio frequency (RF) transceivers;
control circuitry configured to;
process a calibration signal transmitted by a client device in a multipath wireless power delivery environment,wherein the client device includes an RF client transceiver having a radiation and reception pattern in three-dimensional space proximate to the client device;
determine one or more receive characteristic of the calibration signal at each of the multiple RF transceivers; and
determine one or more wireless power transmit characteristics for each of the multiple RF transceivers based on the one or more receive characteristics measured at the corresponding transceiver,wherein the wireless power transmit characteristics for each of the multiple RF transceivers identify a configuration for transmitting wireless power signals over multiple paths that match or constructively interfere at the client radiation and reception pattern in the three-dimensional space proximate to the client device.
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Accused Products
Abstract
Techniques are described herein for delivering retrodirective wireless radio frequency (RF) power to a client device in a wireless power delivery environment. More specifically, embodiments of the present disclosure describe techniques for delivering directed wireless RF power to a client device in a wireless power delivery environment via multiple wireless power signals over multiple wireless power delivery paths. The client device includes one or more RF client transceivers that collectively have a radiation and reception pattern in a three-dimensional space proximate to the client device. The techniques identify the wireless power delivery paths over which wireless power signals can be delivered and deliver the wireless power in a manner that matches the client radiation and reception pattern in the three-dimensional space proximate to the client device.
37 Citations
20 Claims
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1. A wireless power transmission system, comprising:
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an adaptively-phased antenna array having multiple radio frequency (RF) transceivers; control circuitry configured to; process a calibration signal transmitted by a client device in a multipath wireless power delivery environment, wherein the client device includes an RF client transceiver having a radiation and reception pattern in three-dimensional space proximate to the client device; determine one or more receive characteristic of the calibration signal at each of the multiple RF transceivers; and determine one or more wireless power transmit characteristics for each of the multiple RF transceivers based on the one or more receive characteristics measured at the corresponding transceiver, wherein the wireless power transmit characteristics for each of the multiple RF transceivers identify a configuration for transmitting wireless power signals over multiple paths that match or constructively interfere at the client radiation and reception pattern in the three-dimensional space proximate to the client device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of operating a wireless power transmission system, the method comprising:
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processing a calibration signal transmitted by a client device in a multipath wireless power delivery environment, wherein the client device includes an RF client transceiver having a radiation and reception pattern in three-dimensional space proximate to the client device; determining one or more receive characteristic of the calibration signal at each of multiple RF transceivers of the wireless power transmission system; determining one or more wireless power transmit characteristics for each of the multiple RF transceivers based on the one or more corresponding receive characteristics, wherein the wireless power transmit characteristics identify a configuration for transmitting wireless power signals over multiple paths that match or constructively interfere at the client radiation and reception pattern in the three-dimensional space proximate to the client device; configuring each of the multiple RF transceivers in accordance with the corresponding one or more wireless power transmit characteristics; and directing the multiple RF transceivers to transmit the wireless power transmission signals over the multiple paths. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A computer-readable storage medium having program instructions stored thereon which, when executed by one or more processors of a wireless power transmission system, cause the wireless power transmission system to:
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process a calibration signal transmitted by a client device in a multipath wireless power delivery environment, wherein the client device includes an RF client transceiver having a radiation and reception pattern in three-dimensional space proximate to the client device; determine one or more receive characteristic of the calibration signal at each of multiple RF transceivers of the wireless power transmission system; and determine one or more wireless power transmit characteristics for each of the multiple RF transceivers based on the one or more receive characteristics measured at the corresponding transceiver, wherein the wireless power transmit characteristics for each of the multiple RF transceivers identify a configuration for transmitting wireless power signals over multiple paths that match or constructively interfere at the client radiation and reception pattern in the three-dimensional space proximate to the client device. - View Dependent Claims (20)
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Specification