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US 10,770,925 B2Granted
Electronic apparatus and method
AssigneeKabushiki Kaisha Toshiba
InventorsTomoya Tandai, Kentaro Taniguchi, Toshiya Mitomo
Life of this patent
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Abstract
According to one embodiment, an electronic apparatus includes a power transmitter, detect circuitry and control circuitry. The power transmitter is configured to transmit a power by an electromagnetic wave of a power transmission frequency band according to a power transmission period. The detect circuitry is configured to detect a power in a frequency band different from the power transmission frequency band. The control circuitry is configured to determine the power transmission period based on a first threshold value, a second threshold value, a third threshold value and a fourth threshold value.
Claims17
An electronic apparatus comprising:
- a power transmitter configured to transmit a power by an electromagnetic wave of a power transmission frequency band according to a power transmission period;
- detect circuitry configured to detect a power in a frequency band different from the power transmission frequency band;
- and
- control circuitry configured to determine the power transmission period based on a first threshold value set for a power detected in a first frequency band, a second threshold value set for a power detected in a second frequency band, a third threshold value set for a power detected in a third frequency band, and a fourth threshold value set for a power detected in a fourth frequency band, wherein
- the first frequency band includes a lower frequency than a center frequency of the power transmission frequency band,
- the second frequency band includes a higher frequency than the center frequency,
- the third frequency band is adjacent to the first frequency band and includes a lower frequency than the first frequency band,
- the fourth frequency band is adjacent to the second frequency band and includes a higher frequency than the second frequency band,
- the third threshold value is larger than the first threshold value,
- the fourth threshold value is larger than the second threshold value, and
- a difference between the third threshold value and the first threshold value is larger than that between the fourth threshold value and the second threshold value.
8 more elements
A method comprising:
- transmitting a power by an electromagnetic wave of a power transmission frequency band according to a power transmission period;
- detecting a power in a frequency band different from the power transmission frequency band;
- determining the power transmission period based on a first threshold value set for a power detected in a first frequency band, a second threshold value set for a power detected in a second frequency, a third threshold value set for a power detected in a third frequency, a fourth threshold value set for a power detected in a fourth frequency, wherein
- the first frequency band includes a lower frequency than a center frequency of the power transmission frequency band,
- the second frequency band includes a higher frequency than the center frequency,
- the third frequency band is adjacent to the first frequency band and includes a lower frequency than the first frequency band,
- the fourth frequency band is adjacent to the second frequency band and includes a higher frequency than the second frequency band,
- the third threshold value is larger than the first threshold value,
- the fourth threshold value is larger than the second threshold value, and
- a difference between the third threshold value and the first threshold value is larger than that between the fourth threshold value and the second threshold value.
7 more elements
A method comprising:
- transmitting a power by an electromagnetic wave of a power transmission frequency band according to a power transmission period;
- detecting a power in a frequency band different from the power transmission frequency band;
- and
- determining a transmission power based on a first threshold value set for a power detected in a first frequency band, a second threshold value set for a power detected in a second frequency band, a third threshold value set for a power detected in a third frequency band, a fourth threshold value set for a power detected in a fourth frequency band, wherein
- the first frequency band includes a lower frequency than a center frequency of the power transmission frequency band,
- the second frequency band includes a higher frequency than the center frequency,
- the third frequency band is adjacent to the first frequency band and includes a lower frequency than the first frequency band,
- the fourth frequency band is adjacent to the second frequency band and includes a higher frequency than the second frequency band,
- the third threshold value is larger than the first threshold value,
- the fourth threshold value is larger than the second threshold value, and
- a difference between the third threshold value and the first threshold value is larger than that between the fourth threshold value and the second threshold value.
8 more elements
Dependencies are inferred from the claim text.