SIGNAL-QUALITY-INFORMATION CORRECTION DEVICE, SIGNAL-QUALITY-INFORMATION CORRECTION METHOD, AND INFORMATION REPRODUCTION SYSTEM

摘要

Measured signal quality information obtained by measuring signal quality information showing signal quality obtained when an information reproduction device reproduces information from an information recording medium includes a device-caused variation which is a variation in the signal quality information that has degraded due to the information reproduction device, and a medium-caused variation which is a variation in the signal quality information that has degraded due to the information recording medium. A signal-quality-information correction device includes a device-caused-variation detection section which detects the device-caused variation included in the measured signal quality information, and a signal-quality-information correction section which corrects the measured signal quality information to signal quality information resulting from removal of the device-caused variation detected by the device-caused-variation detection section from the measured signal quality information.