Circuit for restoring bits transmitted by a series signal

摘要

The present invention relates to a circuit for restoring bits transmitted by an asynchronous signal, including a comparator of the signal level with a discrimination threshold; a sampling circuit taking several samples from the comparator output for each time interval corresponding to a bit; a circuit for generating an analysis signal at a frequency substantially equal to the bit transmission speed; and an analysis circuit to correct the discrimination threshold according to the difference between two phase values corresponding to the phase relationships with respect to the analysis signal of two consecutive sample transitions, and/or correct the phase of the analysis signal with respect to the bit transmission depending on the sum of the two said phase values.