US Patent 11888331 Sub-surface wireless charging and associated method
Patent 11888331 was granted and assigned to Spark Connected on January, 2024 by the United States Patent and Trademark Office.
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US Patent 11888331 Sub-surface wireless charging and associated method
In an embodiment, a method includes: wirelessly transmitting power to a receiving coil from a transmitting coil, where the receiving coil is in a wireless power transmission space of the transmitting coil; measuring an output of a sensor during a first time to generate a first measurement; measuring the output of the sensor during a second time to generate a second measurement, the second time being after the first time; and when a magnitude of a difference between the first measurement and the second measurement is higher than a predetermined threshold, stopping wirelessly transmitting power to the receiving coil with the transmitting coil.
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