Electronic device
First Claim
1. An electronic device capable of switching power on and power off by a switch outside the electronic device, the electronic device being connected to an AC power source via a power source supply line, the switch being connected in the power source supply line, the electronic device comprising:
- a determination unit configured to determine whether power is supplied from the AC power source or not;
a second power source different from the AC power source;
an output unit;
a power source line connected to the power source supply line;
a relay provided in the power source line and opened when the determination unit determines that no power is supplied from the AC power source;
a potential setting unit configured to set the power source line between the relay and the switch to a first potential;
a potential detecting unit configured to detect a conductive state of the switch based on the first potential set by the potential setting unit; and
a control unit configured to perform at least one of cutting off power to be supplied to the output unit, supplying power from the AC power source to the output unit, and supplying power from the second power source to the output unit based on a determination by the determination unit and the conductive state of the switch detected by the potential detecting unit.
1 Assignment
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Accused Products
Abstract
According to one embodiment, an electronic device capable of switching power on and power off by a switch outside the electronic device, the electronic device includes a determination unit, a detection unit, an output unit, and a control unit. The determination unit determines whether power is supplied from an AC power source or not. The detection unit detects a conductive state of the switch. The control unit performs at least one of cutting off power to be supplied to the output unit, supplying power from the AC power source to the output unit, and supplying power from a second power source different from the AC power source to the output unit.
18 Citations
10 Claims
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1. An electronic device capable of switching power on and power off by a switch outside the electronic device, the electronic device being connected to an AC power source via a power source supply line, the switch being connected in the power source supply line, the electronic device comprising:
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a determination unit configured to determine whether power is supplied from the AC power source or not; a second power source different from the AC power source; an output unit; a power source line connected to the power source supply line; a relay provided in the power source line and opened when the determination unit determines that no power is supplied from the AC power source; a potential setting unit configured to set the power source line between the relay and the switch to a first potential; a potential detecting unit configured to detect a conductive state of the switch based on the first potential set by the potential setting unit; and a control unit configured to perform at least one of cutting off power to be supplied to the output unit, supplying power from the AC power source to the output unit, and supplying power from the second power source to the output unit based on a determination by the determination unit and the conductive state of the switch detected by the potential detecting unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification