| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light transmitting circuit where a data signal to be transmitted can be easily integrated into AC, and transmission latency can be reduced. <P>SOLUTION: A light transmitting circuit 1 is provided with a signal inverting part (invertor) 10 for outputting an inversion signal S102 of a data signal S100 of an inputted electric signal, a signal selecting part (selector) 11 for selecting and outputting one of the data signal S100 and the inversion signal S102, a light emitting element 20 to be directly driven by an output signal S103 of the selector 11 for outputting a data signal S200 of an optical signal and a light emitting element 21 to be directly driven by a clock signal S101 of the electric signal for outputting a clock signal S201 of the optical signal. A light receiving circuit 3 receives the data signal S200 of the optical signal through a light transmitting path 2, and converts it into an electric signal, and restores the data signal by a latch circuit 60. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
