Input/output apparatus and remote control apparatus
An input/output apparatus is provided which is capable of preventing electric shock without reinforcing the insulation of a power-supply unit and capable of connecting to a USB, a LAN, or the like. An input/output apparatus includes a power-supply circuit that uses electric power as the power supply of the present apparatus, which is generated in a resonance circuit by an induction of an AC magnetic field from the resonance circuit on the apparatus main body side, and a communication circuit that transmits and receives a signal between a resonance circuit of the present apparatus and a resonance circuit on the apparatus main body side, and capable of being insulated from the power supply of the apparatus main body by receiving electric power from the apparatus main body in a non-contact state and by communicating with the apparatus main body in a non-contact state, thereby.
1. A remote control apparatus that has an I/F unit in a remote control body and is connected to an electric apparatus connected to a commercial power supply, through a power-supply line and a communication line,
wherein said remote control body includes a power supply circuit having a coil at an output edge and a communication circuit having a coil at an output edge,
said I/F unit includes
power receiving means that has a resonance circuit formed of a coil that is electromagnetically coupled with a coil of said power supply circuit and a capacitor and that converts an AC voltage generated in said resonance circuit by electromagnetic induction from the coil of said power supply circuit to a predetermined constant voltage,
communication means that has a resonance circuit formed of a coil that is electromagnetically coupled with a coil of said communication circuit and a capacitor and generates a high-frequency magnetic field between the coil of said communication circuit and said resonance circuit to transmit and receive a signal, and
an input/output unit that transmits and receives signals to and from external devices,
wherein said input/output unit is connected to said communication means and said power receiving means, and said communication means is connected to said power receiving means, and
wherein during performance of communication between said external devices connected to said input/output unit and said electric apparatus based on a switch in operation of an input unit, control means in said remote control body operates said power supply circuit so that said power receiving means receives an AC voltage generated in said resonance circuit to supply a predetermined constant voltage from said power receiving means to said communication means and said input/output unit and to transmit and receive a signal between said communication means and said communication circuit.
2. A remote control apparatus that has an I/F unit in a remote control body and is connected to an electric apparatus, connected to a commercial power supply, through a power-supply line and a communication line,
wherein said remote control body includes a power supply circuit having a coil at an output edge and a communication circuit having an optical wireless medium that transmits and receives a signal via light at an output edge,
said I/F unit includes
power receiving means that has a resonance circuit formed of a coil that is electromagnetically coupled with a coil of said power supply circuit and a capacitor and converts an AC voltage generated in said resonance circuit by electromagnetic induction from the coil of said power supply circuit to a predetermined constant voltage,
communication means that transmits and receives a signal via light with the optical wireless medium of said communication circuit, and
an input/output unit that transmits and receives a signal to and from an external device, wherein said input/output unit is connected to said communication means and said power receiving means, and said communication means is connected to said power receiving means, and
wherein during performance of communication between said external devices connected to said input/output unit and said electric apparatus based on a switch in operation of an input unit, control means in said remote control body operates said power supply circuit so that said power receiving means receives an AC voltage generated in said resonance circuit to supply a predetermined constant voltage from said power receiving means to said communication means and said input/output unit and to transmit and receive a signal between said communication means and said communication circuit.
3. The remote control apparatus of claim 1 , wherein said input/output unit adopts a start-stop synchronous serial communication unit.
4. The remote control apparatus of claim 1 , wherein said input/output unit is a LAN connection unit.
5. The remote control apparatus of claim 1 , wherein said input/output unit is a USB connection unit.
6. The remote control apparatus of claim 1 , wherein said input/output unit is a memory card I/F unit.
7. The remote control apparatus of claim 1 , wherein said input/output unit is a parallel input/output port.