Back to results
US 8,571,609 B2Granted
Wireless power transmission method
AssigneeSamsung Electronics Co., Ltd.
InventorsChan Soo Hwang, Eun Seok Park, Sang Wook Kwon, Young Tack Hong
Life of this patent
Estimating the term…
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.
Claims20
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.
3 more elements
A method of wirelessly transmitting a power, the method comprising:
- 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.
4 more elements
Dependencies are inferred from the claim text.