Wireless power transfer for chargeable devices
First Claim
1. A charging apparatus, comprising:
- an energy storage device; and
an antenna circuit configured to;
wirelessly receive power from a first device via a power antenna, wherein the energy storage device is configured to store at least a portion of the wirelessly received power, andtransmit at least a portion of the power stored in the energy storage device via the power antenna to wirelessly power or charge a plurality of second devices; and
a controller circuit configured to;
transition the antenna circuit to transmit at least a portion of the power stored in the energy storage device upon detection of a presence of one or more of the plurality of second devices, andtransition the antenna circuit to receive wireless power upon placement of the antenna circuit within a charging region of the first device.
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Accused Products
Abstract
Apparatus and methods directed to wireless power are disclosed. A charging device includes an antenna circuit for wirelessly receiving power from a first device via a power antenna. Received power can be stored in an energy storage device. The antenna circuit can wirelessly power or charge a plurality of second electronic devices via the power antenna based on power stored in the energy storage device. Furthermore, a wireless charging apparatus is disclosed that includes a display for receiving a device placed on its surface. Changes in a magnetic field in response to the placement of the chargeable electronic device on the surface of the display is detected. A communication link with the chargeable electronic device in response to the change in the level of the magnetic field is activated. A transmit antenna circuit wirelessly transmits power to the chargeable electronic device.
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Citations
18 Claims
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1. A charging apparatus, comprising:
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an energy storage device; and an antenna circuit configured to; wirelessly receive power from a first device via a power antenna, wherein the energy storage device is configured to store at least a portion of the wirelessly received power, and transmit at least a portion of the power stored in the energy storage device via the power antenna to wirelessly power or charge a plurality of second devices; and a controller circuit configured to; transition the antenna circuit to transmit at least a portion of the power stored in the energy storage device upon detection of a presence of one or more of the plurality of second devices, and transition the antenna circuit to receive wireless power upon placement of the antenna circuit within a charging region of the first device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of wireless power transfer, comprising:
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wirelessly receiving power from a first device via a power antenna; storing at least a portion of the wirelessly received power in an energy storage device; wirelessly transmitting at least a portion of the power stored in the energy storage device via the power antenna at a level sufficient to power or charge a plurality of second devices; transitioning the power antenna to transmit at least a portion of the power stored in the energy storage device upon detection of a presence of one or more of the plurality of second devices; and transitioning the power antenna to receive wireless power upon placement of the antenna circuit within a charging region of the first device. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A charging apparatus, the apparatus comprising:
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means for storing energy; means for transferring power configured to; wirelessly receive power from a first device via a means for resonating, wherein the means for storing energy is configured to store at least a portion of the wirelessly received power, and wirelessly transmit at least a portion of the power stored in the means for storing energy via the means for resonating to wirelessly power or charge a plurality of second devices; and means for transitioning the means for transferring power to a transmit state to transmit at least a portion of the power stored in the means for storing energy upon detection of a presence of one or more of the plurality of second devices and to a receive state to receive power upon placement of the means for transferring power within a charging region of the first device. - View Dependent Claims (16, 17, 18)
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Specification