US 11,906,991 B2 · Electronic device

Abstract

An electronic device includes first and second connecting wires to which first and second signal wires are connectable, respectively, and a first resistor. The first signal wire transmits a first signal between the electronic device and an external device. The second signal wire transmits a second signal from the external device to the electronic device. The first resistor is disposed between the first connecting wire and a power source of the electronic device. A resistance value of the first resistor is set such that an output voltage from the second connecting wire is lower than a reference value when a voltage of the power source is input to the second connecting wire via the first connecting wire and the external device in a state in which the first and second signal wires are electrically connected to one another and the second signal is not input to the second signal wire.

Claims22

Dependent claims

An electronic device comprising:

a first connecting wire configured to be connectable to a first signal wire of a cable, the first signal wire of the cable transmitting a first signal between the electronic device and an external device that is connectable to the cable;
a first resistor disposed between the first connecting wire and a power source of the electronic device;
and
a second connecting wire configured to be connectable to a second signal wire of the cable, the second signal wire of the cable transmitting a second signal from the external device to the electronic device,
wherein a resistance value of the first resistor is set such that an output voltage from the second connecting wire is lower than a reference value when a voltage of the power source is input to the second connecting wire via the first connecting wire and the external device in a state in which the first signal wire and the second signal wire are electrically connected to one another and the second signal is not input to the second signal wire from the external device.

2 more elements

An electronic device comprising:

a first connecting wire to which a first signal wire is connectable, the first signal wire transmitting a first signal between the electronic device and an external device;
a first resistor disposed between the first connecting wire and a power source of the electronic device;
a second connecting wire to which a second signal wire is connectable, the second signal wire transmitting a second signal from the external device to the electronic device;
a third connecting wire that connects the first connecting wire and the second connecting wire to one another;
and
a rectifying element connected to the third connecting wire,
wherein the rectifying element does not pass a current from the first connecting wire to the second connecting wire when a voltage of the power source is input to the second connecting wire via the first connecting wire and the external device in a state in which the first signal wire and the second signal wire are electrically connected to one another and the second signal is not input to the second signal wire from the external device.

4 more elements

Dependencies are inferred from the claim text.

Electronic device

Life of this patent

Electronic device

Life of this patent

Abstract

Claims22