| 摘要 |
PURPOSE: To provide a light receiving system extremely suitable to highly reliable transmission of a pulse signal. CONSTITUTION: An output pulse from a light receiver 1 is converted into a pulse having fixed peak amplitude through a 1st pulse/pulse converter 2, amplitude correction elements 3, 4 and a 2nd pulse/pulse converter 5. A phase comparator is constituted of two bandpass fiters(BPFs) 9, 10 and an output signal from the element 4 and a local system clock signal are respectively supplied to a mixer 7 through these BPFs 9, 10. These signals are mutually multiplied in the mixer 7 and an output signal front the mixer 7 is a DC signal, which is used for controlling a delay element 8 to compensate a phase difference. |
