Abstract: A pull-up circuit contains a variable current source structured to supply current to a CC pin of a connector. A voltage detection circuit is structured to measure voltage at a CC1 pin and at a CC2 pin. A processor is structured to control the variable current source, and to detect moisture adhered to the CC1 pin and the CC2 pin, with reference to an output of the voltage detection circuit.

Abstract: A source device for supplying power to a sink device includes: a first terminal through which a current to the sink device flows when the first terminal is coupled to the sink device; a second terminal through which a current to a cable for identifying the cable flows when the second terminal is coupled to the cable; detection circuit configured to detect that the first terminal is coupled to the sink device based on a voltage according to the current flowing through the first terminal; and a current control circuit configured to control a magnitude of the current flowing through the first terminal or a magnitude of the current flowing through the second terminal in response to the detection circuit detecting that the first terminal is coupled to the sink device.

Abstract: Disclosed herein is a universal serial bus port controller on a source side. The universal serial bus port controller is compatible with universal serial bus Type-C. A source is equipped with the universal serial bus port controller including a power supply terminal, a power supply circuit, a switch connected between an output of the power supply circuit and the power supply terminal, a capacitor connected to the power supply terminal, and a discharge resistance and a discharge switch connected in series with each other between the power supply terminal and a ground line. The universal serial bus port controller includes an abnormality detector which detects an output voltage of the power supply terminal a plurality of times after the discharge switch is turned on and detects an abnormality on the basis of a temporal change in the output voltage.

Abstract: Disclosed herein is a USB port controller on a sink side. The USB port controller is compatible with a USB Type-C. A sink equipped with the USB port controller includes a power supply terminal, a capacitor connected to the power supply terminal, and a discharge resistance and a discharge switch connected in series with each other between the power supply terminal and a ground line. The USB port controller includes a discharge control unit configured to turn on the discharge switch when no voltage is supplied from a source to the power supply terminal.

Abstract: Disclosed herein is a universal serial bus port controller on a source side. The universal serial bus port controller is compatible with universal serial bus Type-C. A source is equipped with the universal serial bus port controller including a power supply terminal, a power supply circuit, a switch connected between an output of the power supply circuit and the power supply terminal, a capacitor connected to the power supply terminal, and a discharge resistance and a discharge switch connected in series with each other between the power supply terminal and a ground line. The universal serial bus port controller includes an abnormality detector which detects an output voltage of the power supply terminal a plurality of times after the discharge switch is turned on and detects an abnormality on the basis of a temporal change in the output voltage.

Abstract: A remote controller has at least one input switch, and transmits a signal based on a state of the input switch to a target object. A main electrode pair is arranged as the input device and is configured such that inter-electrode distance varies in accordance with a pressing force. Plural sub electrode pairs are each arranged at positions different from the main electrode pair and are configured such that inter-electrode distance varies in accordance with a pressing force. The signal processor monitors a capacitance value of the main electrode pair and the plural sub electrode pairs, and performs predetermined signal processing in accordance with the capacitance value that has been detected. A transmitter transmits a control signal in accordance with the capacitance value of the main electrode pair to the target object.

Abstract: A remote controller has at least one input switch, and transmits a signal based on a state of the input switch to a target object. A main electrode pair is arranged as the input device and is configured such that inter-electrode distance varies in accordance with a pressing force. Plural sub electrode pairs are each arranged at positions different from the main electrode pair and are configured such that inter-electrode distance varies in accordance with a pressing force. The signal processor monitors a capacitance value of the main electrode pair and the plural sub electrode pairs, and performs predetermined signal processing in accordance with the capacitance value that has been detected. A transmitter transmits a control signal in accordance with the capacitance value of the main electrode pair to the target object.