ALTERNATE MARK INVERSION (AMI) RECEIVER

摘要

ALTERNATE MARK INVERSION (AMI) RECEIVER An AMI signals receiver generates a logic signal stream representative of AMI encoded information signal 5 which have traversed a transmission medium. Adaptive compensation circuits are responsive to characteristics of the received AMI signals for generating a bipolar signal ideally corresponding to the transmitted AMI signal but in practice includes noise primarily caused by near-end crosstalk. An apparent improvement in the signal-to-noise ratio is achieved by generating a unipolar signal from instant and last amplitude samples of the bipolar signal and thereafter differentially decoding binary signal representation of the unipolar signal.