Data recording controller

摘要

A data recording controller for speedily modulating input data and generating modulated data. The controller includes a modulation circuit for modulating input data and generating modulation candidates. A selection circuit is connected to the modulation circuit to receive the modulation candidates from the modulation circuit and select one of the modulation candidates as the modulated data based on a conversion parameter. A plurality of memories simultaneously store the modulation candidates, respectively. An output circuit receives the modulation candidates read from the memories and outputs the modulated data, which the selection circuit selects from the modulation candidates.