System and method for efficient data communication and wireless power transfer coexistence
First Claim
1. A receiver for receiving power wirelessly, comprising:
- an antenna configured to receive power wirelessly from a transmitter;
a wireless power circuit configured to provide the power to a load and configured to operate according to a first frequency;
a communication circuit configured to operate according to a second frequency; and
a circuit coupled between the antenna and the wireless power circuit and coupled between the antenna and the communication circuit, the circuit comprising a first resonant network and a second resonant network, the circuit comprising a first path between the antenna and the wireless power circuit via the first resonant network and a second path between the antenna and the communication circuit via the second resonant network, the first resonant network comprising a first set of switches and the second resonant network comprising a second set of switches, the first path having a higher impedance than the second path at the second frequency when the first set of switches and the second set of switches are activated and having a lower impedance than the second path at the first frequency when the first set of switches and the second set of switches are deactivated.
1 Assignment
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Accused Products
Abstract
This disclosure provides systems, methods and apparatus for receiving power wirelessly. In one aspect, a receiver comprises an antenna that receives power wirelessly. The receiver further comprises a power circuit that operates according to a first frequency. The receiver further comprises a communication circuit that operates according to a second frequency. The receiver further comprises a circuit coupled between the antenna and the power circuit and the antenna and the communication circuit. The circuit comprises a first resonant network and a second resonant network. The circuit comprises a first path between the antenna and the power circuit via the first resonant network and a second path between the antenna and the communication circuit via the second resonant network. The first path has a higher impedance than the second path at the second frequency and has a lower impedance than the second path at the first frequency.
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Citations
28 Claims
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1. A receiver for receiving power wirelessly, comprising:
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an antenna configured to receive power wirelessly from a transmitter; a wireless power circuit configured to provide the power to a load and configured to operate according to a first frequency; a communication circuit configured to operate according to a second frequency; and a circuit coupled between the antenna and the wireless power circuit and coupled between the antenna and the communication circuit, the circuit comprising a first resonant network and a second resonant network, the circuit comprising a first path between the antenna and the wireless power circuit via the first resonant network and a second path between the antenna and the communication circuit via the second resonant network, the first resonant network comprising a first set of switches and the second resonant network comprising a second set of switches, the first path having a higher impedance than the second path at the second frequency when the first set of switches and the second set of switches are activated and having a lower impedance than the second path at the first frequency when the first set of switches and the second set of switches are deactivated. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for receiving power wirelessly, comprising:
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receiving power wirelessly from a transmitter via an antenna, the antenna coupled to a wireless power circuit via a first resonant network along a first path, the wireless power circuit configured to operate according to a first frequency, the antenna further coupled to a communication circuit via a second resonant network along a second path, the communication circuit configured to operate according to a second frequency, the first resonant network comprising a first set of switches and the second resonant network comprising a second set of switches, the first path having a higher impedance than the second path at the second frequency when the first set of switches and the second set of switches are activated and having a lower impedance than the second path at the first frequency when the first set of switches and the second set of switches are deactivated; and transferring the power along the first path or the second path based on which path has a lower impedance. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for receiving power wirelessly, comprising:
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means for receiving power wirelessly from a transmitter, the means for receiving power wirelessly coupled to means for providing the power to a load via a first resonant network along a first path, the means for providing the power to a load configured to operate according to a first frequency, the means for receiving power wirelessly further coupled to means for providing the power to a communication chip via a second resonant network along a second path, the means for providing the power to a communication chip configured to operate according to a second frequency, the first resonant network comprising a first set of switches and the second resonant network comprising a second set of switches, the first path having a higher impedance than the second path at the second frequency when the first set of switches and the second set of switches are activated and having a lower impedance than the second path at the first frequency when the first set of switches and the second set of switches are deactivated; and means for transferring the power along the first path or the second path based on which path has a lower impedance. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:
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receive power wirelessly from a transmitter via an antenna, the antenna coupled to a wireless power circuit via a first resonant network along a first path, the wireless power circuit configured to operate according to a first frequency, the antenna further coupled to a communication circuit via a second resonant network along a second path, the communication circuit configured to operate according to a second frequency, the first resonant network comprising a first set of switches and the second resonant network comprising a second set of switches, the first path having a higher impedance than the second path at the second frequency when the first set of switches and the second set of switches are activated and having a lower impedance than the second path at the first frequency when the first set of switches and the second set of switches are deactivated; and transfer the power along the first path or the second path based on which path has a lower impedance. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification