Apparatus for handling change in orientation of terminal during wireless power transfer and method thereof
First Claim
1. A wireless power transmitter for transmitting power by wireless to a terminal, comprising:
- a power conversion unit configured to form a wireless power signal for wireless power transfer using power supplied from a power supply unit; and
a power transmission control unit configured to detect an orientation of the terminal, based on a change in the power for forming the wireless power signal and regulate a characteristic of the supplied power, based on orientation information of the terminal,wherein the characteristic of the supplied power is regulated so that a wireless power transmission method is converted, and the wireless power transmission method includes inductive coupling or electromagnetic resonance coupling, andwherein the wireless power transmission method is converted from the inductive coupling to the electromagnetic resonance coupling when axes of coils of the wireless power transmitter and the terminal cross each other due to a change in the orientation of the terminal.
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Accused Products
Abstract
A wireless power transmitter for transmitting power by wireless to a terminal includes a power conversion unit and a power transmission control unit. The power conversion unit forms a wireless power signal for wireless power transfer using power supplied from a power supply unit. The power transmission control unit regulates a characteristic of the supplied power, based on orientation information of the terminal. A terminal includes a power receiving unit and a control unit. The power receiving unit receives a wireless power signal formed by a wireless power transmitter. The control unit detects whether or not an orientation of the terminal is changed while the wireless power signal is received, and transmits a control message for power regulation to the wireless power transmitter when the change in the orientation of the terminal is detected.
18 Citations
21 Claims
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1. A wireless power transmitter for transmitting power by wireless to a terminal, comprising:
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a power conversion unit configured to form a wireless power signal for wireless power transfer using power supplied from a power supply unit; and a power transmission control unit configured to detect an orientation of the terminal, based on a change in the power for forming the wireless power signal and regulate a characteristic of the supplied power, based on orientation information of the terminal, wherein the characteristic of the supplied power is regulated so that a wireless power transmission method is converted, and the wireless power transmission method includes inductive coupling or electromagnetic resonance coupling, and wherein the wireless power transmission method is converted from the inductive coupling to the electromagnetic resonance coupling when axes of coils of the wireless power transmitter and the terminal cross each other due to a change in the orientation of the terminal. - View Dependent Claims (2, 3, 4, 5)
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6. A terminal comprising:
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a power receiving unit configured to receive a wireless power signal formed by a wireless power transmitter in a wireless power transmission method; and a control unit configured to detect whether or not an orientation of the terminal is changed while the wireless power signal is received, and transmit a control message for power regulation to the wireless power transmitter when the change in the orientation of the terminal is detected, wherein the wireless power signal wireless power transmission method is converted from an inductive coupling to an electromagnetic resonance coupling when axes of coils of the wireless power transmitter and the terminal cross each other due to a change in the orientation of the terminal. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of transmitting power by wireless to a terminal, the method comprising:
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forming a wireless power signal for wireless power transfer using power supplied from a power supply unit; detecting an orientation of the terminal, based on a change in the power for forming the wireless power signal; and regulating a characteristic of the supplied power, based on orientation information of the terminal, wherein the characteristic of the supplied power is regulated so that a wireless power transmission method is converted, and the wireless power transmission method includes inductive coupling or electromagnetic resonance coupling, and wherein the wireless power transmission method is converted from the inductive coupling to the electromagnetic resonance coupling when axes of coils of the wireless power transmitter and the terminal cross each other due to a change in the orientation of the terminal.
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21. A method of controlling a terminal, the method comprising:
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receiving a wireless power signal formed by a wireless power transmitter in a wireless power transmission method; and detecting whether or not an orientation of the terminal is changed during receiving of the wireless power signal, and transmitting a control message for power regulation to the wireless power transmitter when the change in the orientation of the terminal is detected, wherein the wireless power signal wireless power transmission method is converted from an inductive coupling to an electromagnetic resonance coupling when axes of coils of the wireless power transmitter and the terminal cross each other due to a change in the orientation of the terminal.
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Specification