WIRELESS POWER TRANSFER IN AN ELECTRONIC DEVICE HAVING A TUNED METALLIC BODY
First Claim
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1. An electronic apparatus for wireless power transfer, the apparatus comprising:
- an electrically conductive body configured to magnetically couple to a first magnetic field;
a first tuning element electrically connected to the electrically conductive body; and
an electrically conductive coil wound about an opening defined by the electrically conductive body, the electrically conductive coil configured to magnetically couple to a second magnetic field.
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Abstract
An electronic apparatus may include an electrically conductive body configured to magnetically couple to a first magnetic field. A first tuning element may be connected to the electrically conductive body. An electrically conductive coil may be wound about an opening defined by the electrically conductive body, and configured to magnetically couple to a second magnetic field.
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Citations
30 Claims
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1. An electronic apparatus for wireless power transfer, the apparatus comprising:
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an electrically conductive body configured to magnetically couple to a first magnetic field; a first tuning element electrically connected to the electrically conductive body; and an electrically conductive coil wound about an opening defined by the electrically conductive body, the electrically conductive coil configured to magnetically couple to a second magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for wireless power transfer to an electronic device, the method comprising:
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magnetically coupling to an externally generated magnetic field via an electrically conductive structure, that comprises a housing for the electronic device, to produce an induced magnetic field that emanates from the electrically conductive structure; magnetically coupling to the induced magnetic field via a power receiving element to induce current in the power receiving element, the power receiving element electrically isolated from the electrically conductive structure; and producing power from the current induced in the power receiving element. - View Dependent Claims (18, 19, 20, 21, 22)
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23. An apparatus for wirelessly receiving power, the apparatus comprising:
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a housing configured to enclose electronic components that comprise the apparatus, the housing comprising a metallic portion; a first tuning element connected to the metallic portion of the housing, the metallic portion of the housing having a shape that allows a flow of current to be induced therein in response to being magnetically coupled to an externally generated magnetic field, wherein an induced magnetic field emanates from the metallic portion in response to the flow of current; an electrically conductive coil, a flow of current being induced in the electrically conductive coil in response to being magnetically coupled to the induced magnetic field; and a rectifier configured to rectify current induced in the electrically conductive coil to provide power to a load. - View Dependent Claims (24, 25, 26, 27)
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28. An apparatus for wirelessly receiving power in an electronic device, the apparatus comprising:
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means for housing electronics of the electronic device, the means for housing have a metallic portion comprising means for magnetically coupling to an externally generated magnetic field to produce an induced magnetic field that emanates from the means for magnetically coupling to the externally generated magnetic field, wherein the means for magnetically coupling to the externally generated magnetic field is electrically connected to means for tuning the means for magnetically coupling to the externally generated magnetic field to resonate at a resonant frequency; means for magnetically coupling to the induced magnetic field to induce current, the means for magnetically coupling to the induced magnetic field electrically isolated from the means for magnetically coupling to the externally generated magnetic field; and means for producing power from the current induced in the means for magnetically coupling to the induced magnetic field. - View Dependent Claims (29, 30)
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Specification