POWER-RECEIVING DEVICE, WIRELESS POWER-FEEDING SYSTEM INCLUDING POWER-RECEIVING DEVICE, AND WIRELESS COMMUNICATION SYSTEM INCLUDING POWER-RECEIVING DEVICE
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Accused Products
Abstract
When a portable electronic appliance is provided with two systems, a wireless power-feeding system and a wireless communication system, each system requires two power-receiving devices, a coil and an antenna, leading to a problem of increased electronic appliance size and cost. Wireless power feeding employs the resonance method and uses a resonance coil using the resonance method and a power-receiving coil that receives power from the resonance coil. At least one of the resonance coil and the power-receiving coil can also be used as an antenna for wireless communication. Thus, a power-receiving device that can be used for two systems, wireless power feeding and wireless communication, can be provided.
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Citations
20 Claims
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1. (canceled)
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2. A power-receiving device comprising:
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a first coil on a first region of a substrate, the first coil being configured to generate a first high-frequency voltage; a second coil on a second region of the substrate, the second coil being configured to generate a second high-frequency voltage; a wireless power-feeding unit electrically connected to the second coil; and a wireless communication unit electrically connected to the second coil, the wireless communication unit comprising; a reception circuit configured to receive a signal that has been received by at least one of the first coil and the second coil; and a reception controller configured to control the signal received by the reception circuit, wherein the wireless power-feeding unit and the wireless communication unit are provided over the substrate and integrated, and wherein the substrate is a flexible substrate. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. A power-receiving device comprising:
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a first coil on a first region of a substrate, the first coil being configured to generate a first high-frequency voltage; a capacitor on the first region of the substrate, the capacitor electrically connected to the first coil; a second coil on a second surface of the substrate, the second coil being configured to generate a second high-frequency voltage; a wireless power-feeding unit electrically connected to the second coil; and a wireless communication unit electrically connected to the second coil, the wireless communication unit comprising; a reception circuit configured to receive a signal that has been received by at least one of the first coil and the second coil; and a reception controller configured to control the signal received by the reception circuit, wherein the wireless power-feeding unit and the wireless communication unit are integrated over the substrate. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A power-receiving device comprising:
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a first coil configured to generate a first high-frequency voltage; and a second coil configured to generate a second high-frequency voltage, wherein at least one of the first coil and the second coil is configured to receive a signal on one of a carrier wave and an amplitude modulation wave by using electromagnetic induction, wherein the second coil is electrically connected to a wireless power-feeding unit and a wireless communication unit, wherein the wireless power-feeding unit includes; a rectifier circuit configured to rectify the second high-frequency voltage generated by the second coil; a converter electrically connected to the rectifier circuit; and a load configured to receive power converted by the converter, wherein the wireless communication unit includes; a reception circuit configured to receive the signal; a reception controller configured to control the signal received by the reception circuit; a modulation transistor electrically connected to the reception controller; and a load modulation element electrically connected to the modulation transistor, and wherein the wireless power-feeding unit and the wireless communication unit are integrated. - View Dependent Claims (18, 19, 20)
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Specification