Patent ID: 8090267

Claim:
A complementary optical wiring apparatus comprising: an optical transmitter that generates two optical signals according to at least one of two digital electrical input signals; a first optical transmission line that transmits one of the optical signals; a second optical transmission line that transmits the other optical signal; and an optical receiver that generates a digital electrical output signal having the same digital information as the digital electrical input signal based on the two optical signals received via the first and second optical transmission lines, wherein the optical transmitter has a first operation mode of transmitting an optical signal synchronized with a rising edge of the one digital electrical input signal to the first optical transmission line and transmitting an optical signal synchronized with a falling edge of the one digital electrical input signal to the second optical transmission line, and a second operation mode of transmitting an optical signal synchronized with rising and falling edges of one of the two digital electrical input signals to the first optical transmission line and transmitting an optical signal synchronized with rising and falling edges of the other one of the two digital electrical input signals to the second optical transmission line, and the optical transmitter is operated after one of the first and second operation modes is selected.