| 摘要 |
PURPOSE: To provide an optical identification reproduction circuit for easy adjustment of timing required for an accurate operation. CONSTITUTION: This optical identification reproduction circuit is constituted so as to input optical clock signals 22 generated by an optical clock generation circuit 12 based on optical data signals 21B branched by an optical branching circuit 11 to an optical identification circuit 14 through a variable optical delay circuit 13 whose delay amount is controllable by control signals from an outside. Thus, the timing of the optical clock signals 22' inputted to the optical identification circuit 14 is controlled from the outside and the optical identification reproduction circuit is extremely easily adjusted to a state capable of performing accurate identification reproduction. |
