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US 12,415,428 B2Granted
Device authentication for wireless charging
AssigneeWiBotic Inc.
InventorBenjamin Waters
Life of this patent
Estimating the term…
Abstract
An authentication between a wireless charger and a device configured to receive wireless energy from the wireless charger includes establishing a wireless data channel between the wireless charger and the device. An authentication challenge signal is driven onto a transmit charging coil of the wireless charger and a receive charging coil of the device is configured to receive the authentication challenge signal. The device sends an authentication response signal to the wireless charger based at least in part on the authentication challenge signal.
Claims20
A wireless charger comprising:
- a charger communication interface to wirelessly couple with an unmanned autonomous vehicle via a first communication channel, and to broadcast charging data to the unmanned autonomous vehicle via the first communication channel;
- a transmit charging coil to transmit wireless energy via a second communication channel to the unmanned autonomous vehicle;
- a processing logic configured to:
- drive an authentication challenge signal to the transmit charging coil, the authentication challenge signal to be wirelessly transmitted to a receive charging coil of the unmanned autonomous vehicle via the second communication channel;
- receive an authentication response signal from the unmanned autonomous vehicle via the second communication channel;
- in response to receiving the authentication response signal, identify one or both of current and voltage values included in the authentication response signal;
- determine whether the identified one or both of the current and voltage values are within a pre-defined range;
- and
- in response to determining that the identified one or both of the current and voltage values are within the pre-defined range, initiating wireless power transfer to the receive charging coil.
6 more elements
A wireless charger comprising:
- a charger communication interface to wirelessly couple with a fleet of unmanned autonomous vehicles via a first communication channel, the charger communication interface broadcasting charging data to the fleet of unmanned autonomous vehicles via the first communication channel;
- a transmit charging coil to transmit wireless energy via a second wireless communication channel to an unmanned autonomous vehicle among the fleet that received the broadcasted charging data;
- and
- a processing logic configured to:
- drive an authentication challenge signal to the transmit charging coil, the authentication challenge signal to be wirelessly transmitted to a receive charging coil of the unmanned autonomous vehicle via the second communication channel;
- receive an authentication response signal from the unmanned autonomous vehicle via the first communication channel, the received authentication response signal encoded with binary codes;
- in response to receiving the authentication response signal, identify one or both of current and voltage values by decoding the binary codes;
- determine whether the identified one or both of the current and voltage values are within a pre-defined range;
- and
- in response to determining that the identified one or both of the current and voltage values are within the pre-defined range, initiating wireless power transfer to the receive charging coil via the second communication channel.
7 more elements
Dependencies are inferred from the claim text.