OPTICAL DISK DEVICE AND OPTICAL DISK RECORDING AND/OR REPRODUCING METHOD

摘要

An optical disk device for recording and/or reproducing an optical disk such as a DVD, in which an offset V1 is given to the envelope S2 of a reproduction signal RF, a judgment criterion S3 is created, the reproduction signal RF (S4) is binarized with the judgment criterion S3, and the binarized signal is processed.