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US 9,806,533 B2Granted
Power transmitting apparatus, power receiving apparatus, power transmitting method, power receiving method, and program
AssigneeCanon Kabushiki Kaisha
InventorAkihiro Matsumoto
Life of this patent
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Abstract
A power transmitting apparatus for transmitting the power to a power receiving apparatus includes a power transmitting unit configured to wirelessly transmit the power, a receiving unit configured to receive from other power transmitting apparatuses currently transmitting the power the information about the resonance frequencies used for the current power transmission, and a resonance frequency determination unit configured to, based on the resonance frequency information, determine a resonance frequency to be used for power transmission by the power transmitting unit.
Claims1
A power transmitting apparatus comprising:
- a power transmitting coil that wirelessly supplies power to a power receiving apparatus by matching a resonance frequency of the power transmitting apparatus to a resonance frequency of the power receiving apparatus;
- a storage medium;
- and
- a central processing unit that executes instructions provided by the storage medium to:
- determine whether another power transmitting apparatus that is supplying power is present when power supply to the power receiving apparatus is started;
- and
- control, in a case where it is determined that the other power transmitting apparatus is present, the power transmitting coil so as to start power supply to the power receiving apparatus at a second resonance frequency different from a first resonance frequency that is being used by the other power transmitting apparatus, and control, in a case where it is determined that the other power transmitting apparatus is absent, the power transmitting coil so as to start power supply to the power receiving apparatus at a third resonance frequency requested by the power receiving apparatus.
4 more elements
Dependencies are inferred from the claim text.