Focusing pulsed signal transmissions in multipath wireless power delivery environments
First Claim
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1. A method of focusing pulsed signal transmissions in a multipath wireless power delivery environment, the method comprising:
- transmitting, from a single transmitting antenna, a pulsed training signal over a plurality of paths to a receiving antenna in the multipath wireless power delivery environment,wherein the pulsed training signal includes at least one signal pulse;
identifying timing and phase information corresponding to the pulsed training signal as received by the receiving antenna over each of the plurality of paths;
configuring transmission settings associated with the transmitting antenna based on the timing and phase information,wherein the transmission settings inverse the timing information to focus a pulsed wireless power transmission signal over multiple paths of the plurality of paths for simultaneous reception by the receiving antenna over two or more of the multiple paths, andwherein the pulsed wireless power transmission signal comprises a signal pulse transmitted over each of the multiple paths at a different time and a different phase such that the signal pulses constructively interfere at the receiving antenna; and
transmitting, by the single transmitting antenna, the pulsed wireless power transmission signal to the receiving antenna over the multiple paths.
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Abstract
Techniques are described herein for enabling, among other features, more effective wireless charging of devices in wireless power delivery environments through enhanced signal focusing over multiple paths in a multipath wireless power delivery environment. More specifically, the systems and methods discussed herein describe techniques for increasing effective charging of devices, including enhanced ability to focus charging utilizing multiple pathways, phase detection of incoming signals allowing for movement detection in a wireless environment, phase synchronization, and directional arrays.
52 Citations
17 Claims
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1. A method of focusing pulsed signal transmissions in a multipath wireless power delivery environment, the method comprising:
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transmitting, from a single transmitting antenna, a pulsed training signal over a plurality of paths to a receiving antenna in the multipath wireless power delivery environment, wherein the pulsed training signal includes at least one signal pulse; identifying timing and phase information corresponding to the pulsed training signal as received by the receiving antenna over each of the plurality of paths; configuring transmission settings associated with the transmitting antenna based on the timing and phase information, wherein the transmission settings inverse the timing information to focus a pulsed wireless power transmission signal over multiple paths of the plurality of paths for simultaneous reception by the receiving antenna over two or more of the multiple paths, and wherein the pulsed wireless power transmission signal comprises a signal pulse transmitted over each of the multiple paths at a different time and a different phase such that the signal pulses constructively interfere at the receiving antenna; and transmitting, by the single transmitting antenna, the pulsed wireless power transmission signal to the receiving antenna over the multiple paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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one or more computer readable storage media; and program instructions stored on the one or more computer readable storage media, wherein the program instruction, when executed by a processing system, direct the processing system to; direct a single transmitting antenna to transmit a pulsed training signal over a plurality of paths to a receiving antenna in the multipath wireless power delivery environment, wherein the pulsed training signal includes at least one signal pulse; identify timing and phase information corresponding to the pulsed training signal as received by the receiving antenna over each of the plurality of paths; configure transmission settings associated with the transmitting antenna based on the timing and phase information, wherein the transmission settings inverse the timing information to focus a pulsed wireless power transmission signal over multiple paths of the plurality of paths for simultaneous reception by the receiving antenna over two or more of the multiple paths, and wherein the pulsed wireless power transmission signal comprises a signal pulse transmitted over each of the multiple paths at a different time and a different phase such that the signal pulses constructively interfere at the receiving antenna; and direct the single transmitting antenna to transmit the pulsed wireless power transmission signal to the receiving antenna over the multiple paths. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. 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; direct a single transmitting antenna of the adaptively-phased antenna array to transmit a pulsed training signal over a plurality of paths to a receiving antenna in the multipath wireless power delivery environment, wherein the pulsed training signal includes at least one signal pulse; identify timing and phase information corresponding to the pulsed training signal as received by the receiving antenna over each of the plurality of paths; configure transmission settings associated with the transmitting antenna based on the timing and phase information, wherein the transmission settings inverse the timing information to focus a pulsed wireless power transmission signal over multiple paths of the plurality of paths for simultaneous reception by the receiving antenna over two or more of the multiple paths, and wherein the pulsed wireless power transmission signal comprises a signal pulse transmitted over each of the multiple paths at a different time and a different phase such that the signal pulses constructively interfere at the receiving antenna; and direct the single transmitting antenna to transmit the pulsed wireless power transmission signal to the receiving antenna over the multiple paths.
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Specification