WIRELESS POWER TRANSMISSION AND CHARGING SYSTEM AND METHOD THEREOF
First Claim
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1. A communication method of a wireless power transmission and charging system, the communication method comprising:
- transmitting a wake-up request message to a target device through an in-band communication scheme or an out-band communication scheme in which data is transmitted and received using a resonance frequency; and
receiving, from the target device, an acknowledgement (ACK) message in response to the wake-up request message,wherein at least one of the wake-up request message and the ACK message corresponds to a shortened packet that is generated by converting a packet of a byte scale into a packet of a bit scale.
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Abstract
A wireless power transmission and charging system is provided. The wireless power transmission and charging system may include a source device to wirelessly transmit a power, and a target device to wirelessly receive the power. A communication error may be reduced, and a power transmission efficiency may be increased, by performing communication between the source device and the target device using a shortened packet generated by converting, for example, a packet of a byte scale to a packet of a bit scale.
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Citations
25 Claims
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1. A communication method of a wireless power transmission and charging system, the communication method comprising:
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transmitting a wake-up request message to a target device through an in-band communication scheme or an out-band communication scheme in which data is transmitted and received using a resonance frequency; and receiving, from the target device, an acknowledgement (ACK) message in response to the wake-up request message, wherein at least one of the wake-up request message and the ACK message corresponds to a shortened packet that is generated by converting a packet of a byte scale into a packet of a bit scale. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communication method of a wireless power transmission and charging system, the communication method comprising:
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transmitting a request message or an information message to a target device, through an in-band communication scheme in which data is transmitted and received using a resonance frequency or an out-band communication scheme; and receiving, from the target device, a response message corresponding to the request message or the information message, wherein at least one of the request message or the information message comprises a field to indicate a start of the request message or the information message, a field to indicate an identifier of the target device, a field to indicate a command to be transferred to the target device, and a check field to check an error of the request message or the information message, and each of the fields is of a bit scale. - View Dependent Claims (11)
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10. The communication method of claim 10, further comprising:
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generating power to be used by the target device for communication, by converting a direct current (DC) voltage to an alternating current (AC) voltage using the resonance frequency; and transmitting the power to the target device through magnetic coupling.
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12. A communication method of a wireless power transmission and charging system, the communication method comprising:
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receiving a wake-up request message from a source device; and transmitting, to the source device, an acknowledgement (ACK) message in response to the wake-up request message, using a shortened packet generated by converting a packet of a byte scale to a packet of a bit scale. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A wireless power transmitter comprising:
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a communication unit configured to transmit a wake-up request message to the target device through an in-band communication scheme in which data is transmitted and received using the resonance frequency or an out-band communication scheme; and a receiver configured to receive, from the target device, an acknowledgement (ACK) message in response to the wake-up request message, wherein at least one of the wake-up request message and the ACK message corresponds to a shortened packet generated by converting a packet of a byte scale to a packet of a bit scale. - View Dependent Claims (21)
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22. A wireless power transmitter comprising:
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a control and communication unit configured to transmit a request message or an information message to the target device through an in-band communication scheme in which data is transmitted and received using a resonance frequency or an out-band communication scheme, wherein the request message or the information message comprises a field to indicate a start of the request message or the information message, a field to indicate an identifier of the target device, a field to indicate a command to be transferred to the target device, and a check field to check an error of the request message or the information message, and each of the fields is of a bit scale. - View Dependent Claims (23)
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24. A wireless power receiver comprising:
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a control and communication unit configured to demodulate a message received from the source device, and to transmit, to the source device, a response message corresponding to the message received from the source device, wherein the response message comprises a shortened packet generated by converting a packet of a byte scale to a packet of a bit scale. - View Dependent Claims (25)
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Specification