Wireless power transmission method
First Claim
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1. A method of a wireless power transmission device for wirelessly transmitting power to a terminal, the method comprising:
- transmitting a Broadcast Message (BM) while the wireless power transmission device is in an idle state;
receiving a connection request message from the terminal, and in response, transitioning from the idle state to a plug-in state;
transmitting a test power to the terminal, and in response, receiving an efficiency information message comprising a comparison to an amount of the test power transmitted by the wireless transmission device and an amount of the test power actually received by the terminal;
establishing a connection with the terminal during which power is wirelessly transmitted to the terminal, in response to the amount of test power actually received by the terminal being greater than a reference value; and
transitioning from the power transmission state to a plug-out state in which the connection to the terminal is terminated, in response to a charging completion message being received from the connected terminal.
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Abstract
A wireless power transmission method is provided. The method includes exchanging information for wireless power transmission between a wireless power transmission device and a terminal, in order to determine a communication protocol.
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Citations
20 Claims
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1. A method of a wireless power transmission device for wirelessly transmitting power to a terminal, the method comprising:
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transmitting a Broadcast Message (BM) while the wireless power transmission device is in an idle state; receiving a connection request message from the terminal, and in response, transitioning from the idle state to a plug-in state; transmitting a test power to the terminal, and in response, receiving an efficiency information message comprising a comparison to an amount of the test power transmitted by the wireless transmission device and an amount of the test power actually received by the terminal; establishing a connection with the terminal during which power is wirelessly transmitted to the terminal, in response to the amount of test power actually received by the terminal being greater than a reference value; and transitioning from the power transmission state to a plug-out state in which the connection to the terminal is terminated, in response to a charging completion message being received from the connected terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of wirelessly transmitting a power, the method comprising:
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transmitting a Broadcast Message (BM) at each broadcast period; authenticating a terminal that receives the BM; and wirelessly transmitting power to the terminal when the authentication of the terminal is successful, the wireless transmitting comprising; transmitting a test power to the terminal, and in response, receiving an efficiency information message comprising a comparison to an amount of the test power transmitted and an amount of the test power actually received by the terminal; and establishing a connection with the terminal during which power is wirelessly transmitted to the terminal, in response to the amount of test power actually received by the terminal being greater than a reference value. - View Dependent Claims (18, 19, 20)
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Specification