Patent attributes
An optical-electrical transmitting device for transmitting a signal includes an electrical signal transmitting circuit which divides a transmission signal into a first transmission signal and a second transmission signal, a switching device which is electrically connected to receive and converts the first signal into an identification signal for determining the transmission signal to be one of a fast signal and a slow signal, and a selector which is electrically connected to receive the second transmission signal and the identification signal and outputs the second transmission signal to an optical waveguide when the transmission signal is determined to be the fast signal and an electrical wiring when the transmission signal is determined to be the slow signal, the optical waveguide optically connecting the electrical signal transmitting circuit to an electrical signal receiving circuit, the electrical wiring electrically connecting the electrical signal transmitting circuit to the electrical signal receiving circuit.