Coupled resonator in a metal back cover
First Claim
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1. An electronic device comprising:
- electronic components;
a metal case configured to house the electronic components; and
a power receiving element comprising a coil defining an area, the coil disposed on an inner portion of the metal case without openings within the area that permit the power receiving element to couple with an externally generated magnetic field and located adjacent to at least one edge of the metal case and configured to couple with a magnetic field that emanates from the at least one edge of the metal case when the metal case is exposed to the externally generated magnetic field, to wirelessly receive power from the externally generated magnetic field.
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Abstract
An electronic device is disclosed, having electronic components and a metal case configured to house the electronic components. A power receiving element may be disposed on the metal case near an edge thereof. The power receiving element may couple with a magnetic field that emanates from the edge of the metal case, when the metal case is exposed to an externally generated magnetic field, to wirelessly receive power from the externally generated magnetic field.
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Citations
23 Claims
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1. An electronic device comprising:
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electronic components; a metal case configured to house the electronic components; and a power receiving element comprising a coil defining an area, the coil disposed on an inner portion of the metal case without openings within the area that permit the power receiving element to couple with an externally generated magnetic field and located adjacent to at least one edge of the metal case and configured to couple with a magnetic field that emanates from the at least one edge of the metal case when the metal case is exposed to the externally generated magnetic field, to wirelessly receive power from the externally generated magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for wireless power transfer comprising:
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inducing eddy currents in a metal case configured to house an electronic device; magnetically coupling to a magnetic field that emanates at a periphery of the metal case in response to the eddy currents induced in the metal case, using a power receiving element comprising a coil defining an area, the coil disposed on an inner portion of the periphery of the metal case without openings within the area that permit the power receiving element to couple with an externally generated magnetic field from outside of the metal case; and generating wirelessly received power for the electronic device from a voltage induced in the power receiving element in response to magnetically coupling to the magnetic field that emanates from the periphery of the metal case. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An electronic device comprising:
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means for housing components that comprise the electronic device, the means for housing including a metal case; means for magnetically coupling to an externally generated magnetic field to wirelessly receive power, the means for magnetically coupling disposed on an inner portion defining an area of the metal case the means for housing without openings that permit the power receiving element to couple with an externally generated magnetic field from outside of the metal case; and means for producing wirelessly receive power from the means for magnetically coupling.
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Specification