CIRCUIT TO RESTORE BITS TRANSMITTED BY ASYNCHRONOUS SIGNAL, METHOD TO DETECT SYNCHRONOUS BURST,METHOD TO CONTROL BIT RESTORATION ERROR AND METHOD TO DETECT SIGNAL WITH HIGH-FREQUENCY LOSS

摘要

PROBLEM TO BE SOLVED: To restore bits which are transmitted with an asynchronous signal when a transmit signal having a synchronous burst synchronously is processed and readjusted. SOLUTION: The circuit for restoring the bits transmitted with the asynchronous signal includes a 1st comparator 10 which compares the level of the asynchronous signal with a 1st threshold value Vref adjusted as a function of the output of a 1st comparator 10 during the synchronous burst of the asynchronous signal and at least one 2nd comparator 14 which compares the level of the asynchronous signal with a 2nd threshold value VrefH correlating with the 1st threshold value.