DISTORTION COMPENSATION SYSTEM AND COMMUNICATION APPARATUS

摘要

A distortion compensation system includes a first communication node including a first reception unit including an equalizer configured by a first digital filter unit and a first transmission unit including an emphasis circuit configured by a second digital filter unit, and a second communication node including a second transmission unit transmitting a training pattern before receiving normal data from the first communication node. The equalizer converges a filter constant of the first digital filter unit so that an error of the received training pattern is converged. The first transmission unit performs a distortion compensation using the converged filter constant of the first digital filter unit as at least a part of a filter constant of the second digital filter unit of the emphasis circuit, and then transmits the data.

主权项

1. A distortion compensation system comprising:
a first communication node including a first reception unit and a first transmission unit, the first reception unit including an equalizer and the equalizer including a first digital filter unit, and the first transmission unit including an emphasis circuit and the emphasis circuit including a second digital filter unit; and a second communication node including a second transmission unit, and the second transmission unit transmitting a training pattern determined in advance before receiving normal data from the first transmission unit of the first communication node through a first transmission line, wherein the first communication node receives the training pattern transmitted from the second transmission unit of the second communication node using the first reception unit, the equalizer converges a filter constant of the first digital filter unit so that an error with respect to the training pattern to be received is converged, and the first transmission unit of the first communication node performs a distortion compensation on the normal data to be transmitted using the converged filter constant of the first digital filter unit as at least a part of a filter constant of the second digital filter unit of the emphasis circuit, and then transmits the normal data.