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US 11,381,689 B2Granted
Electronic device and method of presenting error when the device is turned off
AssigneeCanon Kabushiki Kaisha
InventorManabu Ozawa
Life of this patent
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Abstract
An electronic device and a method of presenting an error in power off of the electronic device are provided. The electronic device includes a power switch that is manually set to ON and OFF, an actuator that sets the power switch to OFF, and a controller that outputs a control signal for controlling whether to supply power to the actuator. The electronic device notifies different information based on whether or not the power has been supplied to the actuator after the controller has output the control signal.
Claims9
An electronic device comprising:
- a power switch to turn the electronic device ON or OFF;
- a solenoid that drives the power switch to an ON state or to an OFF state by applying a pressure to a mechanical switch of the power switch;
- a power supply unit that supplies power to the solenoid via a power supply line;
- a detection module that detects whether or not the power is supplied to the solenoid through the power supply line;
- and
- one or more controllers configured to:
- determine whether or not the power switch is turned to the ON state or to the OFF state based on a signal from the power switch;
- determine that the power switch is defective in a case where the detection module detects that the power is supplied to the solenoid and it is determined that the power switch is not turned to the OFF state;
- and
- determine that a power supply failure to the solenoid occurs in a case where the detection module detects that the power is not supplied to the solenoid and it is determined that the power switch is not turned to the OFF state.
7 more elements
Dependencies are inferred from the claim text.