Wireless power transfer for low power devices
AssigneeQUALCOMM Incorporated
InventorsStanley S. Toncich, Ernest T. Ozaki
Life of this patent
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Abstract
Exemplary embodiments are directed to wireless power transfer to simultaneously recharge power to more than one device and a user interface for setting charging duration. A method of operating a wireless receiver may comprise receiving wireless power with a receive antenna and conveying power from the receive antenna to a chargeable element. The method may further include electrically isolating the receive antenna from the chargeable element upon detecting that the chargeable element is fully-charged.
Claims27
A wireless charging device, comprising:
- an antenna configured to wirelessly transmit power simultaneously to a first chargeable device and a second chargeable device at a level sufficient to charge or power the first and the second chargeable devices;
- a user interface configured to receive a user input indicating a desired duration of a charging period for wirelessly transmitting power via the antenna to each one of the first and second chargeable devices;
- a timer configured to track time during the charging period;
- and
- a controller configured to deactivate the wireless transmission of power via the antenna to the first and second chargeable devices when the charging period is equal to the desired duration.
A method for charging via a wireless charging device, the method comprising:
- wirelessly transmitting power simultaneously to a first chargeable device and a second chargeable device via an antenna at a level sufficient to charge or power the first and the second chargeable devices;
- receiving a user input indicating a desired duration of a charging period for wirelessly transmitting power via the antenna to each one of the first and second chargeable devices via a user interface;
- deactivating the wireless transmission of power via the antenna to the first and second chargeable devices when the charging period is equal to the desired duration.
A wireless charging device, the device comprising:
- means for wirelessly transmitting power simultaneously to a first chargeable device and a second chargeable device at a level sufficient to charge or power the first and the second chargeable devices;
- means for receiving a user input indicating a desired duration of a charging period for wirelessly transmitting power to each one of the first and second chargeable devices;
- and
- means for deactivating the wireless transmission of power to the first and second chargeable devices when the charging period is equal to the desired duration.
Dependencies are inferred from the claim text.