Wireless power supply system, a power receiving device and a power receiving method for a musical instrument
AssigneeYamaha Corporation
InventorsSatsuki KAWAHASHI, Naoyuki ONOZAWA, Kenji IWAMOTO
Life of this patent
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Abstract
A wireless power supply system to for musical instrument comprises: a power supply device which is configured to wirelessly transmit microwaves, and a first power receiving device which is attached to a first musical instrument. The first power receiving device is configured to: receive the wirelessly transmitted microwave, and generate a first electric power from the received microwave, wherein the first electric power is supplied to at least one of a first electronic device installed in the first musical instrument and a first battery installed in the first musical instrument.
Claims20
A wireless power supply system for a musical instrument, comprising:
- a power supply device which is configured to wirelessly transmit microwaves using a directive antenna, and
- a first power receiving device which is attached to a first musical instrument, the first power receiving device being disposed away from the power supply device, the first power receiving device is configured to:
- receive the microwaves wirelessly transmitted from the power supply device, and
- generate first electric power from the received microwaves, the first electric power being supplied to at least one of a first electronic device installed in the first musical instrument and a first battery installed in the first musical instrument, wherein
- the first power receiving device is configured to emit a signal to the power supply device, and
- the power supply device wirelessly transmits the microwaves to the first power receiving device when the Dower supply device receives the signal from the first power receiving device.
(canceled)
A power receiving device, comprising:
- a musical instrument, and
- a first power receiving device attached to the first musical instrument, the first power receiving device is configured to:
- emit a signal,
- receive wirelessly transmitted microwaves, and
- generate first electric power from the received microwaves, the first electric power being supplied to at least one of a first electronic device installed in the first musical instrument and a first battery installed in the first musical instrument,
- wherein the first power receiving device is configured to emit the signal before receiving the wirelessly transmitted microwaves, and the signal is used for requesting the microwaves to be wirelessly transmitted.
A power receiving method, comprising:
- emitting a signal, the step being performed by a first power receiving device which is attached to a first musical instrument,
- receiving wirelessly transmitted microwaves, the step being performed by the first power receiving device, and
- generating first electric power from the received microwaves, the first electric power being supplied to at least one of a first electronic device installed in the first musical instrument and a first battery installed in the first musical instrument, the step being performed by the first power receiving device,
- wherein the step of emitting the signal is performed before the step of receiving the wirelessly transmitted microwaves, and the signal is used for requesting the microwaves to be wirelessly transmitted.
Dependencies are inferred from the claim text.