Electronic apparatus and control method for electronic apparatus
AssigneeCanon Kabushiki Kaisha
InventorAkihito Taketani
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Abstract
An electronic apparatus comprises a detection unit configured to detect electrical characteristics of main power, via a composite cable, changed in accordance with subsidiary power supplied through the composite cable configured to perform power supply and bi-directional signal transmission; and a control unit configured to control the main power supplied through the composite cable in accordance with a result of detection by the detection unit.
Claims7
An electronic apparatus comprising:
- a composite cable line configured to supply an external apparatus with main power and subsidiary power and to perform bi-directional signal transmission with the external apparatus;
- a detection unit configured to detect electrical characteristics of the main power, via the composite cable line, that are changed in accordance with the subsidiary power when the subsidiary power is supplied through the composite cable line without supplying the main power;
- and
- a control unit configured to control supply of the main power to the external apparatus through the composite cable line and the electrical characteristics of the main power based on the detected electrical characteristics of the main power.
A control method for an electronic apparatus having a composite cable line configured to supply an external apparatus with main power and subsidiary power and to perform bi-directional signal transmission with the external apparatus, the method comprising:
- detecting electrical characteristics of the main power, via the composite cable line, that are changed in accordance with the subsidiary power when the subsidiary power is supplied through the composite cable line without supplying the main power;
- and
- controlling the main power supplied to the external apparatus through the composite cable line and the electrical characteristics of the main power based on the detected electrical characteristics of the main power.
Dependencies are inferred from the claim text.