Reproduction power control method, reproduction power control device, and record reproducing device incorporating the same

摘要

A reproduction power control device includes: an adapter/equalizer for adapt and equalizing a digital reproduction signal to a predetermined frequency characteristic so a post-equalization reproduction signal; and a reproduction power control unit for, based on an equalization amount in the adaptation and equalization by the adapter/equalizer, detecting an error between a current reproduction power and an optimal reproduction power and controlling a reproduction power of laser light so as to bring the error closer to 0. In this manner, it becomes possible to offer a reproduction power control method, a reproduction power control device, and a record reproducing device incorporating the same, capable of reproduction power control without reducing the user area on a recording medium.