Electronic apparatus
AssigneeKabushiki Kaisha Toshiba
InventorAnwar SATHATH
Life of this patent
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Abstract
According to one embodiment, an electronic apparatus includes an antenna, a switch circuit and a control circuit. The antenna is configured to have a first resonance frequency band and a second resonance frequency band. The switch circuit is connected between a feeder line and the antenna and configured to switch a resonance frequency band of the antenna from the first resonance frequency band to the second resonance frequency band in accordance with a control signal. The control circuit is configured to resonate with a transmission signal of the second resonance frequency band, which flows from a wireless communication module through the feeder line, and to generate the control signal by using energy which is obtained by the resonance with the transmission signal.
Claims7
An electronic apparatus comprising:
- an antenna configured to have a first resonance frequency band and a second resonance frequency band;
- a switch circuit connected between a feeder line and the antenna and configured to switch a resonance frequency band of the antenna from the first resonance frequency band to the second resonance frequency band in accordance with a control signal;
- and
- a control circuit comprising a resonance circuit configured to resonate with a transmission signal of the second resonance frequency band, which flows from a wireless communication module through the feeder line, the control circuit configured to generate the control signal by using energy which is obtained by the resonance with the transmission signal.
An electronic apparatus comprising:
- a main body;
- a wireless communication module provided within the main body;
- a display unit attached rotatably to the main body via a coupling portion;
- an antenna provided within the display unit and configured to have a first resonance frequency band and a second resonance frequency band;
- a switch circuit provided within the display unit, connected between the antenna and a feeder line, which is led from the main body to the display unit through the coupling portion, the switch circuit being configured to switch a resonance frequency band of the antenna from the first resonance frequency band to the second resonance frequency band in accordance with a control signal;
- and
- a control circuit provided within the display unit and comprising a resonance circuit configured to resonate with a transmission signal of the second resonance frequency band, which flows from the wireless communication module through the feeder line, the control circuit configured to generate the control signal by using energy which is obtained by the resonance with the transmission signal.
Dependencies are inferred from the claim text.