Wireless power transmitters and receivers, and method for permitting a wireless power receiver by a wireless power transmitter
First Claim
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1. A method for permitting a wireless power receiver to be charged by a wireless power transmitter, the method comprising the steps of:
- if the wireless power transmitter is not able to charge the wireless power receiver due to limited available power, generating a first Power Receiving Unit (PRU) control signal including a permission field indicating that charging the wireless power receiver is permitted with waiting time and transmitting the first PRU control signal to the wireless power receiver; and
if the wireless power transmitter has available power, generating a second PRU control signal including a permission field indicating that the wireless power receiver is permitted to begin charging and transmitting the second PRU control signal to the wireless power receiver.
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Abstract
An apparatus and method are provided for permitting a wireless power receiver to be charged by a wireless power transmitter. The method includes generating a Power Receiving Unit (PRU) control signal including permission information indicating charging permission for the wireless power receiver; and transmitting the PRU control signal to the wireless power receiver.
15 Citations
21 Claims
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1. A method for permitting a wireless power receiver to be charged by a wireless power transmitter, the method comprising the steps of:
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if the wireless power transmitter is not able to charge the wireless power receiver due to limited available power, generating a first Power Receiving Unit (PRU) control signal including a permission field indicating that charging the wireless power receiver is permitted with waiting time and transmitting the first PRU control signal to the wireless power receiver; and if the wireless power transmitter has available power, generating a second PRU control signal including a permission field indicating that the wireless power receiver is permitted to begin charging and transmitting the second PRU control signal to the wireless power receiver. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A control method of a wireless power receiver, the method comprising the steps of:
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receiving, from a wireless power transmitter, a first Power Receiving Unit (PRU) control signal including a permission field indicating that charging the wireless power receiver is permitted with waiting time if the wireless power transmitter is not able to charge the wireless power receiver due to limited available power; determining whether to be on standby; generating a PRU reporting signal including standby information indicating whether or not the wireless power receiver is determined to be on standby for charging; transmitting the PRU reporting signal to the wireless power transmitter; and receiving, a second PRU control signal including a permission field indicating that the wireless power receiver is permitted to begin charging if wireless power transmitter has available power. - View Dependent Claims (8, 9, 10)
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11. A wireless power transmitter for wirelessly charging a wireless power receiver, the wireless power transmitter comprising:
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a power transmitter configured to wirelessly transmit charging power to the wireless power receiver; a controller configured to generate a first Power Receiving Unit (PRU) control signal including a permission field indicating that charging the wireless power receiver is permitted with waiting time if the wireless power transmitter is not able to charge the wireless power receiver due to limited available power; and a communication unit configured to transmit the first PRU control signal to the wireless power receiver, wherein the controller generates a second PRU control signal including a permission field indicating that the wireless power receiver is permitted to begin charging, if the wireless power transmitter has available power and controls the communication unit to transmit the second PRU control signal to the wireless power receiver. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A wireless power receiver for being wirelessly charged by a wireless power transmitter, the wireless power receiver comprising:
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a power receiver configured to receive charging power from the wireless power transmitter; a communication unit configured to receive, from the wireless power transmitter, a first Power Receiving Unit (PRU) control signal including a permission field indicating that charging the wireless power receiver is permitted with waiting time when the wireless power transmitter is not able to charge the wireless power receiver due to limited available power; a display unit configured to display a message asking a user whether to be on standby; and a controller configured to generate a PRU reporting signal including standby information indicating whether the wireless power receiver is on standby for charging and to control the communication unit to transmit the PRU reporting signal to the wireless power transmitter, wherein the communication unit receives a second PRU control signal including a permission field indicating that the wireless power receiver is permitted to begin charging if the wireless power transmitter has available power. - View Dependent Claims (19, 20, 21)
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Specification