POWER TRANSMITTING APPARATUS, POWER RECEIVING APPARATUS, AND POWER TRANSMITTING METHOD
First Claim
1. A electric power transmitting apparatus that has a sub-electric power transmission mode, and a main electric power transmission mode in which a larger amount of power than an amount of power transmitted in the sub-electric power transmission mode is transmitted, and that transmits power to a electric power receiving apparatus in a manner in which a plurality of electric power transmitting apparatuses and electric power receiving apparatuses mainly utilize an identical frequency as a electric power transmission frequency, the electric power transmitting apparatus comprising:
- a power transmitting section that transmits power wirelessly;
a communication section that acquires a power request notification to be transmitted from the electric power receiving apparatus; and
a electric power transmission control section that, as the sub-electric power transmission mode, controls power to be transmitted by the power transmitting section and a transmission timing of the power so that at least power required for the electric power receiving apparatus to transmit the power request notification is transmitted at random time intervals, and that switches to the main electric power transmission mode in a case where the communication section acquires the power request notification.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided is a electric power transmitting apparatus (300) that has sub-electric power transmission mode, and main electric power transmission mode for transmitting power larger than that transmitted in the sub-electric power transmission mode. A power transmitting unit (310) transmits power in a wireless manner. A electric power transmission control unit (320) controls, in sub-electric power transmission mode, power to be transmitted by means of the power transmitting unit (310) and transmission timing of the electric power transmission such that at least power that the electric power receiving apparatus needs to transmit power request notification is transmitted at random intervals. A electric power transmission control unit (320) performs switching to the main electric power transmission mode, in the cases where a communication unit (350) acquired the power request notification transmitted from the electric power receiving apparatus.
260 Citations
7 Claims
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1. A electric power transmitting apparatus that has a sub-electric power transmission mode, and a main electric power transmission mode in which a larger amount of power than an amount of power transmitted in the sub-electric power transmission mode is transmitted, and that transmits power to a electric power receiving apparatus in a manner in which a plurality of electric power transmitting apparatuses and electric power receiving apparatuses mainly utilize an identical frequency as a electric power transmission frequency, the electric power transmitting apparatus comprising:
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a power transmitting section that transmits power wirelessly; a communication section that acquires a power request notification to be transmitted from the electric power receiving apparatus; and a electric power transmission control section that, as the sub-electric power transmission mode, controls power to be transmitted by the power transmitting section and a transmission timing of the power so that at least power required for the electric power receiving apparatus to transmit the power request notification is transmitted at random time intervals, and that switches to the main electric power transmission mode in a case where the communication section acquires the power request notification. - View Dependent Claims (2, 3, 4, 5)
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6. A electric power receiving apparatus that receives, from a electric power transmitting apparatus, power transmitted in a manner in which a plurality of electric, power transmitting apparatuses and electric power receiving apparatuses mainly utilize an identical frequency as a electric power transmission frequency, the electric power transmitting apparatus having a main electric power transmission mode, and a sub-electric power transmission mode in which a smaller amount of power than an amount of power transmitted in the main electric power transmission mode is transmitted, the electric power receiving apparatus comprising:
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a power receiving section that receives power transmitted wirelessly from the electric power transmitting apparatus; a reception level determining section that monitors a power reception state at the power receiving section and that detects an occurrence of interference based on a change in the power reception state; and a communication section that sends a power request notification, information showing the power reception state, or an interference detection notification that indicates the occurrence of interference to the electric power transmitting apparatus.
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7. A electric power transmitting method that transmits power from a electric power transmitting apparatus to a electric power receiving apparatus in a manner in which a plurality of electric power transmitting apparatuses and electric power receiving apparatuses mainly utilize an identical frequency as a electric power transmission frequency, the electric power transmitting apparatus having a sub-electric power transmission mode and a main electric power transmission mode in which a larger amount of power than an amount of power transmitted in the sub-electric power transmission mode is transmitted, the electric power transmitting method comprising:
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transmitting power wirelessly; acquiring a power request notification to be transmitted from the electric power receiving apparatus; controlling, as the sub-electric power transmission mode, power to be transmitted and a transmission timing of the power so that at least power required for the electric power receiving apparatus to transmit the power request notification is transmitted at random time intervals; and switching to the main electric power transmission mode in a case where the power request notification is acquired.
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Specification