Coil and method for increasing the degree of an electromagnetic coupling
AssigneeMotorola Mobility LLC
InventorsMartin R Pais, David A Winkler
Life of this patent
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Abstract
The present application provides a coil for facilitating an electromagnetic coupling and method for increasing the degree of an electromagnetic coupling. The coil for facilitating an electromagnetic coupling includes one or more loops formed from a material through which an electric current can flow. At least one of the one or more loops is adjustable, including at least one of a size and a shape of the at least one of the one or more loops of the coil being selectively adjustable.
Claims20
A coil for facilitating an electromagnetic coupling, said coil comprising:
- one or more loops formed from a material through which an electric current can flow, wherein at least one of the one or more loops is adjustable including at least one of a size and a shape of the at least one of the one or more loops of the coil being selectively adjustable.
A method for increasing the degree of an electromagnetic coupling where the electromagnetic coupling includes a coupling between at least a pair of distinct coils where at least one of the electromagnetically coupled coils has at least one loop adjustable in at least one of size and shape, the method comprising:
- determining an efficiency of the coil having the at least one adjustable loop in transferring power as part of an electromagnetic coupling by comparing a measured amount of power transmitted in a first coil of the at least a pair of distinct coils with a measured amount of power received in a second coil of the at least a pair of distinct coils;
- adjusting at least one of size and shape of the at least one adjustable loop of the coil;
- determining a new efficiency of the coil in transferring power as part of an electromagnetic coupling after the at least one of size and shape of the at least one adjustable loop has been adjusted;
- comparing the new efficiency with the efficiency determined immediately prior to the most recent adjustment;
- and
- retaining the adjustment in the at least one of size and shape of the at least one adjustable loop, when the new efficiency is determined to be an improvement relative to the efficiency determined immediately prior to the most recent adjustment, or otherwise reverting back to the size and shape of the at least one adjustable loop of the coil prior to adjustment, when the new efficiency is determined to not be an improvement relative to the efficiency determined immediately prior to the most recent adjustment.
Dependencies are inferred from the claim text.