Ultrasonic universal wireless charging
AssigneeIntel Corporation
InventorsMohamed A. Abdelmoneum, Paul J. Gwin, Rashed Mahameed, Mark E. Sprenger
Life of this patent
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Abstract
Methods and systems may provide for detecting a location of an adjacent ultrasonic receiver of a battery powered device relative to a charging surface of a contactless charger. The charging surface may include an ultrasonic array of transmitter sub arrays, wherein one or more of the transmitter sub arrays may be selectively activated based on the location to focus an ultrasonic beam on the adjacent ultrasonic receiver. In one example, a movement of the adjacent ultrasonic receiver may be detected and the focus of the ultrasonic beam is adjusted in response to the movement.
Claims24
A contactless charger comprising:
- a charging surface including an array of transmitter sub arrays, each transmitter sub array having a plurality of ultrasonic transmitters;
- and
- logic to:
- detect a location of an adjacent ultrasonic receiver of a battery powered device relative to the charging surface, and
- selectively activate one or more of the transmitter sub arrays based on the location to focus an ultrasonic beam on the adjacent ultrasonic receiver.
A battery powered device comprising:
- an ultrasonic receiver;
- a beam reflector positioned at a perimeter of the ultrasonic receiver;
- and
- a charge circuit to transfer a charge signal from the ultrasonic receiver to a battery.
A method of operating a contactless charger, comprising:
- detecting a location of an adjacent ultrasonic receiver of a battery powered device relative to a charging surface of the contactless charger, the charging surface including an ultrasonic array of transmitter sub arrays;
- and
- selectively activating one or more of the transmitter sub arrays based on the location to focus an ultrasonic beam on the adjacent ultrasonic receiver.
At least one computer readable storage medium comprising a set of instructions which, if executed by a contactless charger, cause the contactless charger to:
- detect a location of an adjacent ultrasonic receiver of a battery powered device relative to a charging surface of the contactless charger, the charging surface to include an ultrasonic array of transmitter sub arrays;
- and
- selectively activate one or more of the transmitter sub arrays based on the location to focus an ultrasonic beam on the adjacent ultrasonic receiver.
Dependencies are inferred from the claim text.