Power transmitting apparatus, power receiving apparatus, control methods therefor, and non-transitory computer-readable storage medium
First Claim
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1. A power transmitting apparatus supporting a plurality of wireless power transmission methods, comprising:
- a communicator for communicating with a power receiving apparatus;
at least one power transmission coil to be used for wireless power transmission to the power receiving apparatus;
a controller for;
(i) determining, based on information received from the power receiving apparatus, whether the power receiving apparatus supports a first wireless power transmission method in which a first value is defined as an upper limit value of a power transmission amount, the first value being higher than a second value that is defined as an upper limit value of a power transmission amount for a second wireless power transmission method;
(ii) deciding, based on a result of the determining, a wireless power transmission method to be used for wireless power transmission to the power receiving apparatus among a plurality of wireless power transmission methods including at least the first wireless power transmission method and the second wireless power transmission method, wherein the controller decides to transmit power to the power receiving apparatus according to the first wireless power transmission method if the controller determines that the power receiving apparatus supports both of the first and second wireless power transmission methods; and
(iii) performing negotiation, by using a communication protocol according to the decided wireless power transmission method, with the power receiving apparatus to determine parameters for the wireless power transmission according to the decided wireless power transmission method; and
a power transmitter for, by using the at least one power transmission coil, performing the wireless power transmission to the power receiving apparatus according to the wireless power transmission method decided by said controller, wherein the wireless power transmission according to the first wireless power transmission method and the wireless power transmission according to the second wireless power transmission method are performed by a same power transmission coil.
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Abstract
A power transmitting apparatus supporting a plurality of wireless power transmission methods, acquires information about at least one wireless power transmission method supported by a power receiving apparatus from the power receiving apparatus, decides, based on the acquired information, a wireless power transmission method to be used for power transmission to the power receiving apparatus, and transmits power to the power receiving apparatus by the decided wireless power transmission method.
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Citations
17 Claims
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1. A power transmitting apparatus supporting a plurality of wireless power transmission methods, comprising:
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a communicator for communicating with a power receiving apparatus; at least one power transmission coil to be used for wireless power transmission to the power receiving apparatus; a controller for; (i) determining, based on information received from the power receiving apparatus, whether the power receiving apparatus supports a first wireless power transmission method in which a first value is defined as an upper limit value of a power transmission amount, the first value being higher than a second value that is defined as an upper limit value of a power transmission amount for a second wireless power transmission method; (ii) deciding, based on a result of the determining, a wireless power transmission method to be used for wireless power transmission to the power receiving apparatus among a plurality of wireless power transmission methods including at least the first wireless power transmission method and the second wireless power transmission method, wherein the controller decides to transmit power to the power receiving apparatus according to the first wireless power transmission method if the controller determines that the power receiving apparatus supports both of the first and second wireless power transmission methods; and (iii) performing negotiation, by using a communication protocol according to the decided wireless power transmission method, with the power receiving apparatus to determine parameters for the wireless power transmission according to the decided wireless power transmission method; and a power transmitter for, by using the at least one power transmission coil, performing the wireless power transmission to the power receiving apparatus according to the wireless power transmission method decided by said controller, wherein the wireless power transmission according to the first wireless power transmission method and the wireless power transmission according to the second wireless power transmission method are performed by a same power transmission coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17)
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11. A control method for a power transmitting apparatus which comprises at least one power transmission coil to be used for wireless power transmission to a power receiving apparatus and which supports a plurality of wireless power transmission methods, the control method comprising:
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receiving information from the power receiving apparatus; determining, based on information received from the power receiving apparatus, whether the power receiving apparatus supports a first wireless power transmission method in which a first value is defined as an upper limit value of a power transmission amount, the first value being higher than a second value that is defined as an upper limit value of a power transmission amount for a second wireless power transmission method; deciding, based on a result of the determining a wireless power transmission method to be used for wireless power transmission to the power receiving apparatus among a plurality of wireless power transmission methods including at least the first wireless power transmission method and the second wireless power transmission method, wherein it is decided to transmit power to the power receiving apparatus according to the first wireless power transmission method if it is determined that the power receiving apparatus supports both of the first and second wireless power transmission methods; performing negotiation, by using a communication protocol according to the decided wireless power transmission method, with the power receiving apparatus to determine parameters for the wireless power transmission according to the decided wireless power transmission method; and transmitting power wirelessly, by using the at least one power transmission coil, to the power receiving apparatus according to the decided wireless power transmission method, wherein the wireless power transmission according to the first wireless power transmission method and the wireless power transmission according to the second wireless power transmission method are performed by a same power transmission coil.
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12. A non-transitory computer-readable storage medium storing a computer program for controlling a computer to execute a control method for a power transmitting apparatus which comprises at least one power transmission coil to be used for wireless power transmission to a power receiving apparatus and which supports a plurality of wireless power transmission methods, the program comprising code for executing:
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receiving information from the power receiving apparatus; determining, based on information received from the power receiving apparatus, whether the power receiving apparatus supports a first wireless power transmission method in which a first value is defined as an upper limit value of a power transmission amount, the first value being higher than a second value that is defined as an upper limit value of a power transmission amount for a second wireless power transmission method; deciding, based on a result of the determining, a wireless power transmission method to be used for wireless power transmission to the power receiving apparatus among a plurality of wireless power transmission methods including at least the first wireless power transmission method and the second wireless power transmission method, wherein it is decided to transmit power to the power receiving apparatus according to the first wireless power transmission method if it is determined that the power receiving apparatus supports both of the first and second wireless power transmission methods; performing negotiation, by using a communication protocol according to the decided wireless power transmission method, with the power receiving apparatus to determine parameters for the wireless power transmission according to the decided wireless power transmission method; and transmitting power wirelessly, by using the at least one power transmission coil, to the power receiving apparatus according to the decided wireless power transmission method, wherein the wireless power transmission according to the first wireless power transmission method and the wireless power transmission according to the second wireless power transmission method are performed by a same power transmission coil.
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Specification