Inductive charging between electronic devices
First Claim
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1. A portable electronic device comprising:
- an enclosure forming a back surface of the portable electronic device;
a display coupled to the enclosure and forming a front surface of the portable electronic device that is opposite from the back surface of the portable electronic device;
a battery within the enclosure and providing electrical power to the display anda transmit inductive coil positioned within the enclosure and between the display and the back surface of the enclosure, the transmit inductive coil being configured to wirelessly transmit power through the back surface of the enclosure to an external device that is positioned proximate to the back surface of the enclosure.
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Abstract
An electronic device and methods for inductively charging an electronic device using another external electronic device. The electronic device may include an enclosure, a battery positioned within the enclosure, and an inductive coil coupled to the battery. The inductive coil may have two or more operational modes, including a power receiving operational mode for wirelessly receiving power and a power transmitting operational mode for wirelessly transmitting power. The electronic device may also have a controller coupled to the inductive coil for selecting one of the operational modes.
120 Citations
20 Claims
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1. A portable electronic device comprising:
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an enclosure forming a back surface of the portable electronic device; a display coupled to the enclosure and forming a front surface of the portable electronic device that is opposite from the back surface of the portable electronic device; a battery within the enclosure and providing electrical power to the display and a transmit inductive coil positioned within the enclosure and between the display and the back surface of the enclosure, the transmit inductive coil being configured to wirelessly transmit power through the back surface of the enclosure to an external device that is positioned proximate to the back surface of the enclosure. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electronic device comprising:
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an enclosure forming a back surface of the electronic device; a display coupled to the enclosure and forming a front surface of the electronic device that is opposite from the back surface of the electronic device; a battery within the enclosure; an inductive coil coupled to the battery and positioned within the enclosure between the front surface and the back surface of the enclosure, the inductive coil configured to wirelessly transmit power through the back surface of the enclosure to an external device that is positioned proximate to the back surface of the enclosure, and operate in two or more operational modes comprising; a power receiving mode for wirelessly receiving power from the external device positioned proximate to the back surface; and a power transmitting mode for wirelessly transmitting power to the external device positioned proximate to the back surface; and a controller coupled to the inductive coil and configured to select one of the operational modes of the inductive coil. - View Dependent Claims (9, 10, 11, 12)
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13. A system comprising:
a first electronic device comprising; an enclosure forming a back surface of the first electronic device; a display coupled to the enclosure and forming a front surface of the first electronic device that is opposite from the back surface of the first electronic device; a first battery positioned within the enclosure; a first inductive coil coupled to the first battery and positioned within the enclosure between the front surface and the back surface of the enclosure; and a first controller coupled to the first inductive coil for selecting an operational mode of the first inductive coil; and a second electronic device positioned adjacent the first electronic device, the second electronic device comprising; a second battery; a second inductive coil coupled to the second battery; and a second controller coupled to the second inductive coil for selecting an operational mode of the second inductive coil, wherein; the first inductive coil is configured to wirelessly transfer power with the second electronic device through the back surface of the first electronic device when the second electronic device is positioned proximate to the back surface of the first electronic device; the first controller is configured to select a power transmitting operational mode for wirelessly transmitting power from the first battery to the second battery using the first inductive coil, and the first controller is configured to select a power receiving operational mode for wirelessly receiving power from the second battery to the first battery using the first inductive coil. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
Specification